As filed with the Securities and Exchange Commission on November 29, 2007


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM N-Q

                   QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF
                   REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number: 811-21342

               LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND
               ---------------------------------------------------
             (Exact Name of the Registrant as Specified in Charter)
                           605 Third Avenue, 2nd Floor
                          New York, New York 10158-0180
               (Address of Principal Executive Offices - Zip Code)

       Registrant's telephone number, including area code: (212) 526-7000

                    Peter E. Sundman, Chief Executive Officer
               Lehman Brothers First Trust Income Opportunity Fund
                           605 Third Avenue, 2nd Floor
                          New York, New York 10158-0180

                              Arthur Delibert, Esq.
                 Kirkpatrick & Lockhart Preston Gates Ellis LLP
                               1601 K Street, N.W.
                           Washington, D.C. 20006-1600
                   (Names and addresses of agents for service)

Date of fiscal year end: December 31, 2007

Date of reporting period: September 30, 2007

Form N-Q is to be used by management  investment  companies to file reports with
the  Commission  not later than 60 days after the close of their first and third
fiscal  quarters,  pursuant to Rule 30b1-5 under the  Investment  Company Act of
1940 ("1940 Act") (17 CFR  270.30b1-5).  The Commission may use the  information
provided  on Form N-Q in its  regulatory,  disclosure  review,  inspection,  and
policymaking roles.

A registrant is required to disclose the information  specified by Form N-Q, and
the Commission will make this  information  public. A registrant is not required
to respond to the  collection  of  information  contained in Form N-Q unless the
Form displays a currently  valid Office of Management and Budget ("OMB") control
number.  Please  direct  comments  concerning  the  accuracy of the  information
collection  burden  estimate  and any  suggestions  for  reducing  the burden to
Secretary,  Securities and Exchange Commission, 100 F Street, NE, Washington, DC
20549-0609.  The OMB has  reviewed  this  collection  of  information  under the
clearance requirements of 44 U.S.C. Section 3507.



ITEM 1. SCHEDULE OF INVESTMENTS.



                                                                                                                SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
(UNAUDITED)

                                                                                                                  MARKET
PRINCIPAL AMOUNT($)                                                                              RATING         VALUE($)(+)
                                                                                           Moody's      S&P
                                                                                                
CORPORATE DEBT SECURITIES (145.4%)

AEROSPACE/DEFENSE (2.4%)
                3,705,000  L-3 Communications Corp., Guaranteed Senior
                           Unsecured Subordinated Notes, 7.63%, due 6/15/12                Ba3       BB+        3,788,362
                  165,000  L-3 Communications Corp., Guaranteed Senior
                           Unsecured Subordinated Notes, 6.13%, due 7/15/13                Ba3       BB+          162,113
                  340,000  L-3 Communications Corp., Guaranteed Notes, Ser. B,
                           6.38%, due 10/15/15                                             Ba3       BB+          334,050
                                                                                                                4,284,525
AIRLINES (1.7%)
                2,830,820  Continental Airlines, Inc., Pass-Through Certificates,
                           9.80%, due 4/1/21                                               Ba1       BB+        2,972,361
APPAREL/TEXTILES (0.9%)
                1,570,000  Levi Strauss & Co., Senior Unsubordinated Notes,
                           9.75%, due 1/15/15                                              B2        B+         1,648,500
AUTO LOANS (17.4%)
                1,610,000  Ford Motor Credit Co., Unsecured Notes, 7.38%,
                           due 10/28/09                                                    B1        B          1,578,697
                6,870,000  Ford Motor Credit Co., Senior Unsecured Notes,
                           9.75%, due 9/15/10                                              B1        B          7,008,678
                2,735,000  Ford Motor Credit Co., Bonds, 7.38%, due 2/1/11                 B1        B          2,620,740
                3,875,000  Ford Motor Credit Co., Notes, 7.80%, due 6/1/12                 B1        B          3,686,287
               14,995,000  General Motors Acceptance Corp., Notes, 6.88%,
                           due 9/15/11                                                     Ba1       BB+       14,270,202
                1,715,000  General Motors Acceptance Corp., Unsecured
                           Notes, 7.00%, due 2/1/12                                        Ba1       BB+        1,628,164
                                                                                                               30,792,768
AUTO PARTS & EQUIPMENT (1.5%)
                1,002,000  Goodyear Tire & Rubber Co., Senior Notes, 8.63%,
                           due 12/1/11                                                     Ba3       B          1,047,090(n)
                1,500,000  Goodyear Tire & Rubber Co., Senior Notes, 9.00%,
                           due 7/1/15                                                      Ba3       B          1,601,250
                                                                                                                2,648,340
AUTOMOTIVE (0.8%)
                1,550,000  General Motors Corp., Senior Unsubordinated
                           Notes, 8.38%, due 7/15/33                                       Caa1      B-         1,358,188
BEVERAGE (0.4%)
                  720,000  Constellation Brands, Inc., Guaranteed Notes,
                           7.25%, due 9/1/16                                               Ba3       BB-          720,000
BUILDING & CONSTRUCTION (0.2%)
                  410,000  K. Hovnanian Enterprises, Senior Notes, 8.63%, due
                           1/15/17                                                         Ba3       BB-          338,250
CHEMICALS (2.3%)
                  780,000  Chemtura Corp., Guaranteed Notes, 6.88%, due
                           6/1/16                                                          Ba2       BB+          741,000
                1,290,000  Hexion US Finance Corp., Guaranteed Notes,
                           9.75%, due 11/15/14                                             B3        B          1,419,000
                1,970,000  MacDermid, Inc., Senior Subordinated Notes,
                           9.50%, due 4/15/17                                              Caa1      CCC+       1,901,050(n)
                                                                                                                4,061,050
CONSUMER - PRODUCTS (0.2%)
                  415,000  Amscan Holdings, Inc., Senior Subordinated Notes,
                           8.75%, due 5/1/14                                               Caa1      CCC+         383,875


See Notes to Schedule of Investments





                                                                                                              SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)

                                                                                                                  MARKET
PRINCIPAL AMOUNT($)                                                                              RATING          VALUE($)(+)
                                                                                           Moody's      S&P
                                                                                                
CONSUMER/COMMERCIAL/LEASE FINANCING (1.0%)
                2,060,000  Residential Capital LLC, Guaranteed Notes, 6.00%,
                           due 2/22/11                                                     Ba1       BBB-       1,678,900
ELECTRIC - GENERATION (10.1%)
                4,135,000  AES Corp., Senior Secured Notes, 9.00%, due
                           5/15/15                                                         Ba3       BB         4,341,750(n)
                2,505,000  Dynegy-Roseton Danskamme, Pass-Through
                           Certificates, Ser. B, 7.67%, due 11/8/16                        Ba3       B          2,517,525
                  510,000  Edison Mission Energy, Senior Unsecured Notes,
                           7.50%, due 6/15/13                                              B1        BB-          522,750
                5,475,000  Edison Mission Energy, Senior Notes, 7.63%, due
                           5/15/27                                                         B1        BB-        5,283,375(n)
                2,635,000  Mirant Americas Generation, Inc., Senior Unsecured
                           Notes, 8.30%, due 5/1/11                                        Caa1      B-         2,661,350
                1,590,000  NRG Energy, Inc., Guaranteed Notes, 7.25%, due
                           2/1/14                                                          B1        B          1,593,975
                  715,000  NRG Energy, Inc., Guaranteed Notes, 7.38%, due
                           2/1/16                                                          B1        B            716,787
                  300,000  NRG Energy, Inc., Guaranteed Notes, 7.38%, due
                           1/15/17                                                         B1        B            300,000
                                                                                                               17,937,512
ELECTRONICS (6.2%)
                  350,000  Flextronics Int'l, Ltd., Senior Subordinated Notes,
                           6.50%, due 5/15/13                                              Ba2       BB-          334,250
                3,995,000  Freescale Semiconductor, Inc., Senior Unsecured
                           Notes, 9.13%, due 12/15/14                                      B1        B          3,695,375
                1,410,000  NXP BV Funding LLC, Secured Floating Rate Notes,
                           8.11%, due 10/15/07                                             Ba3       BB         1,309,538(u)
                2,705,000  NXP BV Funding LLC, Secured Notes, 7.88%, due
                           10/15/14                                                        Ba3       BB         2,603,562
                3,235,000  NXP BV Funding LLC, Guaranteed Notes, 9.50%,
                           due 10/15/15                                                    B3        BB         3,016,637
                                                                                                               10,959,362
ENERGY-EXPLORATION & PRODUCTION (3.0%)
                3,060,000  Chesapeake Energy Corp., Guaranteed Notes,
                           7.50%, due 9/15/13                                              Ba2       BB         3,144,150
                  570,000  Chesapeake Energy Corp., Guaranteed Notes,
                           6.38%, due 6/15/15                                              Ba2       BB           559,312
                  475,000  Forest Oil Corp., Guaranteed Unsecured Notes,
                           8.00%, due 12/15/11                                             B1        B+           492,813
                  840,000  Forest Oil Corp., Guaranteed Senior Unsecured
                           Notes, 7.75%, due 5/1/14                                        B1        B+           852,600
                  185,000  Newfield Exploration Co., Senior Subordinated
                           Notes, 6.63%, due 9/1/14                                        Ba3       BB-          181,763
                                                                                                                5,230,638
ENVIRONMENTAL (0.8%)
                1,375,000  Allied Waste North America, Inc., Guaranteed Notes,
                           Ser. B, 7.25%, due 3/15/15                                      B1        BB+        1,402,500
FOOD & DRUG RETAILERS (0.5%)
                1,015,000  Rite Aid Corp., Guaranteed Notes, 9.50%, due
                           6/15/17                                                         Caa1      CCC+         949,025(n)
FORESTRY/PAPER (1.2%)
                  995,000  Bowater, Inc., Debentures, 9.00%, due 8/1/09                    B3        B            935,300
                1,200,000  Graphic Packaging Int'l, Inc., Guaranteed Notes,
                           8.50%, due 8/15/11                                              B2        B-         1,221,000
                                                                                                                2,156,300
See Notes to Schedule of Investments






                                                                                                              SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)

                                                                                                                     MARKET
PRINCIPAL AMOUNT($)                                                                              RATING            VALUE($)(+)
                                                                                         Moody's    S&P
                                                                                                
GAMING (6.9%)
                1,745,000  Chukchansi Economic Development Authority,
                           Senior Notes, 8.00%, due 11/15/13                               B2        BB-        1,762,450(n)
                1,145,000  Fontainebleau Las Vegas Holdings LLC, Second
                           Mortgage, 10.25%, due 6/15/15                                   Caa1      CCC+       1,073,437(n)
                1,180,000  Majestic Star LLC, Senior Unsecured Notes, 9.75%,
                           due 1/15/11                                                     Caa1      CCC+         991,200
                  700,000  MGM Grand, Inc., Guaranteed Senior Notes, 6.00%,
                           due 10/1/09                                                     Ba2       BB           694,750
                1,910,000  Pokagon Gaming Authority, Senior Notes, 10.38%,
                           due 6/15/14                                                     B3        B          2,096,225(n)
                2,105,000  San Pasqual Casino, Notes, 8.00%, due 9/15/13                   B2        B+         2,126,050(n)
                1,745,000  Shingle Springs Tribal Gaming Authority, Senior
                           Notes, 9.38%, due 6/15/15                                       B3        B          1,762,450(n)
                  730,000  Station Casinos, Inc., Senior Unsecured
                           Subordinated Notes, 6.88%, due 3/1/16                           Ba3       B            635,100
                1,065,000  Station Casinos, Inc., Senior Unsecured Notes,
                           7.75%, due 8/15/16                                              Ba2       B+         1,054,350
                                                                                                               12,196,012
GAS DISTRIBUTION (9.7%)
                  905,000  AmeriGas Partners, L.P., Senior Unsecured Notes,
                           7.25%, due 5/20/15                                              B1                     891,425
                  475,000  AmeriGas Partners, L.P., Senior Notes, 7.13%, due
                           5/20/16                                                         B1                     461,937
                1,635,000  Ferrellgas Partners L.P., Senior Unsecured Notes,
                           8.75%, due 6/15/12                                              B2        B-         1,675,875
                3,745,000  Kinder Morgan, Inc., Senior Unsecured Notes,
                           6.50%, due 9/1/12                                               Ba2       BB-        3,708,112
                1,360,000  Kinder Morgan, Inc., Senior Debentures, 7.25%, due
                           3/1/28                                                          Ba2       BB-        1,266,050
                2,275,000  Regency Energy Partners, Senior Unsecured Notes,
                           8.38%, due 12/15/13                                             B1        B          2,383,062(n)
                  810,000  Sabine Pass L.P., Secured Notes, 7.25%, due
                           11/30/13                                                        Ba3       BB           797,850
                3,855,000  Sabine Pass L.P., Secured Notes, 7.50%, due
                           11/30/16                                                        Ba3       BB         3,797,175
                2,025,000  Transcontinental Gas Pipe Line, Unsecured
                           Debentures, 7.25%, due 12/1/26                                  Ba1       BB+        2,143,969
                                                                                                               17,125,455
HEALTH SERVICES (13.6%)
                1,235,000  Community Health Systems, Inc., Senior Notes,
                           8.88%, due 7/15/15                                              B3        B-         1,268,963(n)
                3,230,000  HCA, Inc., Secured Notes, 9.25%, due 11/15/16                   B2        BB-        3,431,875(n)
                5,095,000  HCA, Inc., Secured Notes, 9.63%, due 11/15/16                   B2        BB-        5,438,912(n)
                  345,000  LVB Acquisition Merger, Inc., Senior Subordinated
                           Notes, 11.63%, due 10/15/17                                     Caa1      B-           337,324(n)
                2,085,000  NMH Holdings, Inc., Senior Unsecured Notes, Zero
                           Coupon Bond, due 12/15/07                                       Caa2      CCC+       2,032,875(n)
                1,200,000  Service Corp. Int'l, Senior Unsecured Notes, 7.38%,
                           due 10/1/14                                                     B1        BB-        1,233,000
                3,265,000  Service Corp. Int'l, Senior Unsecured Notes, 7.50%,
                           due 4/1/27                                                      B1        BB-        3,052,775
                2,320,000  Tenet Healthcare Corp., Senior Notes, 9.88%, due
                           7/1/14                                                          Caa1      CCC+       2,122,800
                1,985,000  US Oncology, Inc., Guaranteed Notes, 9.00%, due
                           8/15/12                                                         B2        CCC+       1,999,887



See Notes to Schedule of Investments





                                                                                                          SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)

                                                                                                                     MARKET
PRINCIPAL AMOUNT($)                                                                              RATING            VALUE($)(+)
                                                                                         Moody's      S&P
                                                                                                
                  320,000  Ventas Realty L.P., Senior Notes, 6.63%, due
                           10/15/14                                                        Ba1       BB+          319,200
                  140,000  Ventas Realty L.P., Guaranteed Notes, 7.13%, due
                           6/1/15                                                          Ba1       BB+          142,800
                2,015,000  Ventas Realty L.P., Guaranteed Notes, 6.50%, due
                           6/1/16                                                          Ba1       BB+        1,984,775
                  695,000  Ventas Realty L.P., Guaranteed Notes, 6.75%, due
                           4/1/17                                                          Ba1       BB+          693,263
                                                                                                               24,058,449
INVESTMENTS & MISC. FINANCIAL SERVICES (2.0%)
                1,095,000  Cardtronics, Inc., Senior Subordinated Notes, Ser.
                           B, 9.25%, due 8/15/13                                           Caa1      B-         1,048,463(n)
                2,675,000  Cardtronics, Inc., Guaranteed Notes, 9.25%, due
                           8/15/13                                                         Caa1      B-         2,561,312
                                                                                                                3,609,775
LEISURE (1.1%)
                1,980,000  Royal Caribbean Cruises, Senior Unsubordinated
                           Notes, 7.50%, due 10/15/27                                      Ba1       BBB-       1,856,082
MEDIA - BROADCAST (6.1%)
                4,270,000  CMP Susquehanna Corp., Guaranteed Notes,
                           9.88%, due 5/15/14                                              Caa1      CCC        3,971,100
                1,135,000  Entercom Radio/Capital, Guaranteed Senior
                           Unsecured Notes, 7.63%, due 3/1/14                              B1        B          1,117,975
                1,270,000  LIN Television Corp., Guaranteed Notes, 6.50%,
                           due 5/15/13                                                     B1        B-         1,235,075
                  675,000  LIN Television Corp., Guaranteed Notes, Ser. B,
                           6.50%, due 5/15/13                                              B1        B-           656,438
                2,845,000  Univision Communications, Inc., Senior Notes,
                           9.75%, due 3/15/15                                              B3        CCC+       2,773,875(n)
                  950,000  Young Broadcasting, Inc., Guaranteed Senior
                           Subordinated Notes, 10.00%, due 3/1/11                          Caa1      CCC-         876,375
                  280,000  Young Broadcasting, Inc., Senior Subordinated
                           Notes, 8.75%, due 1/15/14                                       Caa1      CCC-         236,600
                                                                                                               10,867,438
MEDIA - CABLE (9.4%)
                2,568,000  CCH I Holdings LLC, Secured Notes, 11.00%, due
                           10/1/15                                                         Caa2      CCC        2,600,100
                1,200,000  CCH II Holdings LLC, Senior Unsecured Notes,
                           10.25%, due 9/15/10                                             Caa2      CCC        1,227,000
                4,885,000  Charter Communications Operating LLC, Senior
                           Notes, 8.38%, due 4/30/14                                       B3        B+         4,909,425(n)
                3,615,000  DirecTV Holdings LLC, Senior Notes, 8.38%, due
                           3/15/13                                                         Ba3       BB-        3,755,081
                  175,000  DirecTV Holdings LLC, Guaranteed Notes, 6.38%,
                           due 6/15/15                                                     Ba3       BB-          166,031
                1,880,000  EchoStar DBS Corp., Guaranteed Notes, 6.38%,
                           due 10/1/11                                                     Ba3       BB-        1,889,400
                1,415,000  EchoStar DBS Corp., Guaranteed Notes, 7.00%,
                           due 10/1/13                                                     Ba3       BB-        1,446,837
                  645,000  EchoStar DBS Corp., Guaranteed Notes, 7.13%,
                           due 2/1/16                                                      Ba3       BB-          662,738
                                                                                                               16,656,612
MEDIA - DIVERSIFIED (0.8%)
                1,460,000  Quebecor Media, Inc., Notes, 7.75%, due 3/15/16                 B2        B          1,401,600(n)(O)
MEDIA - SERVICES (2.9%)
                1,325,000  Lamar Media Corp., Guaranteed Notes, 7.25%, due
                           1/1/13                                                          Ba3       B          1,331,625



See Notes to Schedule of Investments





                                                                                                         SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)
                                                                                                                   MARKET
PRINCIPAL AMOUNT($)                                                                             RATING           VALUE($)(+)
                                                                                           Moody's    S&P
                                                                                                

                1,540,000  WMG Acquisition Corp., Senior Subordinated Notes,
                           7.38%, due 4/15/14                                              B2        B          1,339,800
                3,465,000  WMG Holdings Corp., Guaranteed Notes, Step-Up,
                           0.00%/9.50%, due 12/15/14                                       B2        B          2,425,500(^^)
                                                                                                                5,096,925
METALS/MINING EXCLUDING STEEL (7.0%)
                1,670,000  Aleris Int'l, Inc., Guaranteed Notes, 9.00%,
                           due 12/15/14                                                    B3        B-         1,544,750
                2,025,000  Aleris Int'l, Inc., Guaranteed Notes, 10.00%, due
                           12/15/16                                                        Caa1      B-         1,792,125
                2,065,000  Arch Western Finance Corp., Guaranteed Notes,
                           6.75%, due 7/1/13                                               B1        BB-        2,023,700
                  425,000  Freeport-McMoRan Copper & Gold, Senior
                           Unsecured Notes, 8.25%, due 4/1/15                              Ba3       BB           459,000
                1,500,000  Freeport-McMoRan Copper & Gold, Senior
                           Unsecured Notes, 8.38%, due 4/1/17                              Ba3       BB         1,638,750
                4,410,000  Massey Energy Co., Guaranteed Notes, 6.88%, due
                           12/15/13                                                        B2        B+         4,112,325
                  775,000  Peabody Energy Corp., Guaranteed Senior Notes,
                           Ser. B, 6.88%, due 3/15/13                                      Ba1       BB           782,750
                                                                                                               12,353,400
NON-FOOD & DRUG RETAILERS (2.3%)
                  730,000  Blockbuster, Inc., Senior Subordinated Notes,
                           9.00%, due 9/1/12                                               Caa2      CCC          657,000
                1,085,000  Claire's Stores, Inc., Guaranteed Notes, 9.63%, due
                           6/1/15                                                          Caa1      CCC+         892,413(n)
                  660,000  GSC Holdings Corp., Guaranteed Notes, 8.00%,
                           due 10/1/12                                                     Ba3       BB           686,400
                1,500,000  Michaels Stores, Inc., Senior Discount Notes, Step-
                           Up, 0.00%/13.00%, due 11/1/16                                   Caa1      CCC         900,000(n)(^^)
                  975,000  Michaels Stores, Inc., Guaranteed Notes, 11.38%,
                           due 11/1/16                                                     Caa1      CCC          996,937
                                                                                                                4,132,750
PACKAGING (8.2%)
                6,775,000  Ball Corp., Guaranteed Unsecured Notes, 6.88%,
                           due 12/15/12                                                    Ba1       BB         6,859,687
                1,260,000  Crown Americas LLC, Guaranteed Notes, 7.75%,
                           due 11/15/15                                                    B1        B          1,300,950
                2,340,000  Graham Packaging Co., Inc., Guaranteed Notes,
                           9.88%, due 10/15/14                                             Caa1      CCC+       2,316,600
                2,235,000  Owens-Brockway Glass Container, Inc., Guaranteed
                           Notes, 8.88%, due 2/15/09                                       Ba2       BB         2,268,525
                1,730,000  Owens-Brockway Glass Container, Inc., Guaranteed
                           Notes, 8.75%, due 11/15/12                                      Ba2       BB         1,810,013
                                                                                                               14,555,775
PRINTING & PUBLISHING (6.4%)
                3,220,000  Dex Media West LLC, Senior Unsecured Notes, Ser.
                           B, 8.50%, due 8/15/10                                           Ba3       B          3,308,550
                  580,000  Dex Media West LLC, Guaranteed Notes, Ser. B,
                           9.88%, due 8/15/13                                              B1        B            616,975
                3,910,000  Idearc, Inc., Guaranteed Notes, 8.00%, due
                           11/15/16                                                        B2        B+         3,900,225
                1,455,000  R.H. Donnelley Corp., Senior Unsecured Notes,
                           6.88%, due 1/15/13                                              B3        B          1,374,975
                2,335,000  Reader's Digest Association, Inc., Senior
                           Subordinated Notes, 9.00%, due 2/15/17                          Caa1      CCC+       2,101,500(n)
                                                                                                               11,302,225


See Notes to Schedule of Investments





                                                                                                         SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)

                                                                                                                   MARKET
PRINCIPAL AMOUNT($)                                                                             RATING             VALUE($)(+)
                                                                                         Moody's     S&P
                                                                                              
RAILROADS (1.9%)
                  660,000  Kansas City Southern Mexico, Senior Notes, 7.38%,
                           due 6/1/14                                                      B2        B+          645,150(n)
                2,640,000  TFM SA de C.V., Senior Notes, 9.38%, due 5/1/12                 B2                  2,765,400
                                                                                                               3,410,550
REAL ESTATE DEV. & MGT. (2.6%)
                1,470,000  American Real Estate Partners L.P., Guaranteed
                           Notes, 7.13%, due 2/15/13                                       Ba3       BB+       1,400,175
                2,150,000  American Real Estate Partners, L.P., Senior Notes,
                           8.13%, due 6/1/12                                               Ba3       BB+       2,131,188
                1,335,000  Realogy Corp., Senior Notes, 11.00%, due 4/15/14                Caa1      B-        1,099,706(n)
                                                                                                               4,631,069
RESTAURANTS (0.7%)
                1,435,000  NPC Int'l, Inc., Guaranteed Notes, 9.50%, due
                           5/1/14                                                          Caa1      B-        1,305,850

STEEL PRODUCERS/PRODUCTS (2.0%)
                1,720,000  Metals U.S.A. Holdings Corp., Senior Floating Rate
                           Notes, 11.36%, due 10/1/07                                      Caa1      CCC       1,599,600(n)(u)
                2,005,000  Tube City IMS Corp., Guaranteed Notes, 9.75%,
                           due 2/1/15                                                      B3        B-        1,959,888
                                                                                                               3,559,488
SUPPORT - SERVICES (2.3%)
                  565,000  Aramark Corp., Guaranteed Notes, 8.50%, due
                           2/1/15                                                          B3        B-          576,300
                3,645,000  Knowledge Learning Corp., Inc., Guaranteed Notes,
                           7.75%, due 2/1/15                                               B2        B-        3,535,650(n)
                                                                                                               4,111,950
TELECOM - INTEGRATED/SERVICES (8.2%)
                1,350,000  Citizens Utilities Co., Senior Unsecured Notes,
                           7.13%, due 3/15/19                                              Ba2       BB+       1,329,750
                1,335,000  Dycom Industries, Inc., Guaranteed Notes, 8.13%,
                           due 10/15/15                                                    Ba3       B+        1,358,363
                2,200,000  Intelsat Bermuda Ltd., Guaranteed Notes, 9.25%,
                           due 6/15/16                                                     B2        B         2,282,500
                  395,000  Intelsat Subsidiary Holdings Co. Ltd., Guaranteed
                           Notes, 8.63%, due 1/15/15                                       B2        B           402,900
                2,200,000  Nordic Telephone Co. Holdings, Secured Notes,
                           8.88%, due 5/1/16                                               B2        B         2,321,000(n)
                1,095,000  Qwest Corp., Senior Notes, 7.88%, due 9/1/11                    Ba1       BBB-      1,149,750
                1,620,000  Qwest Corp., Notes, 8.88%, due 3/15/12                          Ba1       BBB-      1,767,825
                  400,000  Qwest Corp., Senior Unsecured Notes, 7.50%, due
                           10/1/14                                                         Ba1       BBB-        416,000
                1,340,000  Windstream Corp., Guaranteed Notes, 8.13%, due
                           8/1/13                                                          Ba3       BB-       1,410,350
                1,910,000  Windstream Corp., Guaranteed Notes, 8.63%, due
                           8/1/16                                                          Ba3       BB-       2,036,537
                                                                                                              14,474,975
THEATERS & ENTERTAINMENT (0.7%)
                1,230,000  AMC Entertainment, Inc., Guaranteed Notes, Ser. B,
                           8.63%, due 8/15/12                                              Ba3       B-        1,263,825
                           TOTAL CORPORATE DEBT SECURITIES (COST
                           $258,338,334)                                                                     257,492,299


See Notes to Schedule of Investments





                                                                                                         SEPTEMBER 30, 2007

SCHEDULE OF INVESTMENTS Lehman Brothers First Trust Income Opportunity Fund
---------------------------------------------------------------------------
cont'd
------
(UNAUDITED)

                                                                                                                   MARKET
NUMBER OF SHARES                                                                                                  VALUE($)(+)
                                                                                                    
SHORT-TERM INVESTMENTS (2.7%)
                4,747,692  Neuberger Berman Prime Money Fund Trust Class
                           (COST $4,747,692)                                                                 4,747,692(OO)(#)(@)
                           TOTAL INVESTMENTS (148.1%) (COST $263,086,026)                                     262,239,991(##)
                           Cash, receivables and other assets, less liabilities (2.7%)                          4,808,441
                           Liquidation Value of Auction Preferred Shares [(50.8%)]                            (90,000,000)
                           TOTAL NET ASSETS (100.0%)                                                         $177,048,432


See Notes to Schedule of Investments




                                               SEPTEMBER  30, 2007 (UNAUDITED)

NOTES TO SCHEDULE OF INVESTMENTS
--------------------------------

(+)     Investments in debt securities by Lehman Brothers First Trust Income
        Opportunity Fund (the "Fund") are valued daily by obtaining bid price
        quotations from independent pricing services on all securities available
        in each service's database. For all other debt securities requiring
        daily quotations, bid price quotations are obtained from principal
        market makers in those securities. The Fund values all other securities,
        including securities for which the necessary last sale, asked and/or bid
        prices are not readily available, by methods the Board of Trustees has
        approved on the belief that they reflect fair value. Numerous factors
        may be considered when determining the fair value of a security,
        including available analyst, media or other reports, trading in futures
        or ADRs and whether the issuer of the security being fair valued has
        other securities outstanding. Fair value prices are necessarily
        estimates, and there is no assurance that such prices will be at or
        close to the price at which the security is next quoted. Securities with
        remaining maturities of 60 days or less are valued at amortized cost.
        This method involves valuing a portfolio security initially at its cost
        and thereafter assumes a constant amortization to maturity of any
        discount of premium.

(#)     At cost, which approximates market value.

(##)    At September 30, 2007, the cost of investments for U.S. federal income
        tax purposes was $263,878,231. Gross unrealized appreciation of
        investments was $3,047,560 and gross unrealized depreciation of
        investments was $4,685,800, resulting in net unrealized depreciation of
        $1,638,240, based on cost for U.S. federal income tax purposes.

(@)     Neuberger Berman Prime Money Fund ("Prime Money") is also managed by
        Neuberger Berman Management Inc. and may be considered an affiliate
        since it has the same officers, Board members, and investment manager as
        the Fund and because, at times, the Fund may own 5% or more of the
        outstanding voting securities of Prime Money.

(n)     Restricted  security  subject to  restrictions  on resale under  federal
        securities laws.  These securities may be resold in transactions  exempt
        from registration, normally to qualified institutional buyers under Rule
        144A under the Securities Act of 1933, as amended,  and have been deemed
        by the  investment  manager to be liquid.  At September 30, 2007,  these
        securities amounted to approximately  $60,464,295 or 34.2% of net assets
        applicable to common shareholders.

(^^)    Denotes a step-up bond: a zero coupon bond that converts to a fixed rate
        of interest at a designated future date.

(O)     All or a portion of this security was purchased on a when-issued basis.
        At September 30, 2007, these securities amounted to $1,401,600, or 0.8%
        of net assets applicable to common shareholders.

(OO)    All or a portion of this security is segregated as collateral for
        when-issued securities and/or interest rate swap contracts.

(u)     Floating rate securities are securities whose yields vary with a
        designated market index or market rate. These securities are shown at
        their current rates as of September 30, 2007.




For information on the Fund's significant accounting policies, please refer to
the Fund's most recent financial statements.



ITEM 2. CONTROLS AND PROCEDURES.

(a)  Based on an  evaluation  of the  disclosure  controls  and  procedures  (as
     defined in Rule 30a-3(c) under the 1940 Act) as of a date within 90 days of
     the filing date of this document, the Chief Executive Officer and Treasurer
     and  Principal  Financial and  Accounting  Officer of the  Registrant  have
     concluded that such  disclosure  controls and  procedures  are  effectively
     designed  to  ensure  that  information  required  to be  disclosed  by the
     Registrant on Form N-CSR and Form N-Q is accumulated  and  communicated  to
     the Registrant's  management to allow timely decisions  regarding  required
     disclosure.

(b)  There were no significant  changes in the  Registrant's  internal  controls
     over  financial  reporting (as defined in Rule 30a-3(d) under the 1940 Act)
     that  occurred  during  the  Registrant's  last  fiscal  quarter  that have
     materially  affected,  or are reasonably likely to materially  affect,  the
     Registrant's internal control over financial reporting.

ITEM 3. EXHIBITS.

The certifications required by Rule 30a-2(a) of the 1940 Act are filed herewith.



SIGNATURES

Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment Company Act of 1940, the Registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

Lehman Brothers First Trust Income Opportunity Fund


By:  /s/ Peter E. Sundman
     --------------------
     Peter E. Sundman
     Chief Executive Officer

Date: November 28, 2007


Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment  Company  Act of  1940,  this  report  has been  signed  below by the
following  persons on behalf of the  Registrant and in the capacities and on the
dates indicated.



By:  /s/ Peter E. Sundman
     --------------------
     Peter E. Sundman
     Chief Executive Officer

Date: November 28, 2007


By:  /s/ John M. McGovern
     ---------------------
     John M. McGovern
     Treasurer and Principal Financial
     and Accounting Officer

Date: November 28, 2007