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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: DEUTSCHE BANK NATIONAL TRUST COMPANY | INDYMAC BANK | INDYMAC MBS, INC You are currently viewing:
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DEUTSCHE BANK NATIONAL TRUST COMPANY | INDYMAC BANK | INDYMAC MBS, INC

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: Delaware     Date: 12/14/2006

POOLING AND SERVICING AGREEMENT, Parties: deutsche bank national trust company , indymac bank , indymac mbs  inc
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                                  EXHIBIT 99.1

                      The Pooling and Servicing Agreement.
<PAGE>
===============================================================================




                               INDYMAC MBS, INC.
                                    Depositor


                              INDYMAC BANK, F.S.B.
                              Seller and Servicer


                      DEUTSCHE BANK NATIONAL TRUST COMPANY
            Trustee, Swap Trustee and Supplemental Interest Trustee


                    ----------------------------------------

                        POOLING AND SERVICING AGREEMENT
                          Dated as of November 1, 2006
                    ----------------------------------------


                         INDYMAC INDX MORTGAGE LOAN TRUST
                                   2006-AR35


                       MORTGAGE PASS-THROUGH CERTIFICATES
                                Series 2006-AR35



===============================================================================

<PAGE>

                                               TABLE OF CONTENTS
                                               -----------------

<TABLE>
<CAPTION>
                                                                                                                Page
                                                                                                               ----
<S>                         <C>                                                                                   <C>
ARTICLE ONE DEFINITIONS                                                                                           11

         Section 1.01.      Definitions...........................................................................11
         Section 1.02.      Rules of Construction.................................................................46

ARTICLE TWO CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND WARRANTIES                                          48

         Section 2.01.      Conveyance of Mortgage Loans..........................................................48
         Section 2.02.      Acceptance by the Trustee of the Mortgage Loans.......................................51
         Section 2.03.      Representations, Warranties, and Covenants of the Seller and the Servicer.............53
         Section 2.04.      Representations and Warranties of the Depositor as to the Mortgage Loans..............55
         Section 2.05.      Delivery of Opinion of Counsel in Connection with Substitutions.......................55
         Section 2.06.      Execution and Delivery of Certificates................................................56
         Section 2.07.      REMIC Matters.........................................................................56

ARTICLE THREE ADMINISTRATION AND SERVICING OF MORTGAGE LOANS                                                      57

         Section 3.01.      Servicer to Service Mortgage Loans....................................................57
         Section 3.02.      [Reserved]............................................................................58
         Section 3.03.      Rights of the Depositor and the Trustee in Respect of the Servicer....................58
         Section 3.04.      [Reserved]............................................................................58
         Section 3.05.      Trustee to Act as Servicer............................................................58
         Section 3.06.      Collection of Mortgage Loan Payments; Certificate Account; Distribution
                           Account...............................................................................58
         Section 3.07.      Collection of Taxes, Assessments and Similar Items; Escrow Accounts...................61
         Section 3.08.      Access to Certain Documentation and Information Regarding the Mortgage
                           Loans.................................................................................61
         Section 3.09.      Permitted Withdrawals from the Certificate Account and the Distribution
                           Account...............................................................................62
         Section 3.10.      Maintenance of Hazard Insurance; Maintenance of Primary Insurance
                           Policies..............................................................................63
         Section 3.11.      Enforcement of Due-On-Sale Clauses; Assumption Agreements.............................64
         Section 3.12.      Realization Upon Defaulted Mortgage Loans.............................................65
         Section 3.13.      Trustee to Cooperate; Release of Mortgage Files.......................................67
         Section 3.14.      Documents, Records and Funds in Possession of the Servicer to be Held for
                           the Trustee...........................................................................68
         Section 3.15.      Servicing Compensation................................................................68
         Section 3.16.      Access to Certain Documentation.......................................................69
         Section 3.17.      Annual Statement as to Compliance.....................................................69
         Section 3.18.      Errors and Omissions Insurance; Fidelity Bonds........................................69
         Section 3.19.      The Swap Contract and the Corridor Contract...........................................69
         Section 3.20.      Notification of Adjustments...........................................................71
         Section 3.21.      Prepayment Charges....................................................................71
</TABLE>


                                      -i-

<PAGE>

                                               TABLE OF CONTENTS
                                               -----------------
                                                  (Continued)


<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                          <C>                                                                                  <C>
ARTICLE FOUR DISTRIBUTIONS AND ADVANCES BY THE SERVICER                                                           72

         Section 4.01.      Advances..............................................................................72
         Section 4.02.      Priorities of Distribution............................................................73
         Section 4.03.      [Reserved]............................................................................79
         Section 4.04.      [Reserved]............................................................................79
         Section 4.05.      Monthly Statements to Certificateholders..............................................79
         Section 4.06.      Carryover Reserve Fund................................................................81
         Section 4.07.      Determination of Pass-Through Rates for LIBOR Certificates............................82
         Section 4.08.      Swap Trust, Swap Account, Supplemental Interest Trust and Supplemental
                           Interest Reserve Fund.................................................................83

ARTICLE FIVE THE CERTIFICATES                                                                                      85

         Section 5.01.      The Certificates......................................................................85
         Section 5.02.      Certificate Register; Registration of Transfer and Exchange of
                           Certificates..........................................................................85
         Section 5.03.      Mutilated, Destroyed, Lost or Stolen Certificates.....................................90
         Section 5.04.      Persons Deemed Owners.................................................................90
         Section 5.05.      Access to List of Certificateholders' Names and Addresses.............................90
         Section 5.06.      Maintenance of Office or Agency.......................................................91

ARTICLE SIX THE DEPOSITOR AND THE SERVICER                                                                        92

         Section 6.01.      Respective Liabilities of the Depositor and the Servicer..............................92
         Section 6.02.      Merger or Consolidation of the Depositor or the Servicer..............................92
         Section 6.03.      Limitation on Liability of the Depositor, the Seller, the Servicer, and
                           Others................................................................................92
         Section 6.04.      Limitation on Resignation of the Servicer.............................................93

ARTICLE SEVEN DEFAULT                                                                                             94

         Section 7.01.      Events of Default.....................................................................94
          Section 7.02.      Trustee to Act; Appointment of Successor..............................................95
         Section 7.03.      Notification to Certificateholders....................................................96

ARTICLE EIGHT CONCERNING THE TRUSTEE                                                                              98

         Section 8.01.      Duties of the Trustee.................................................................98
         Section 8.02.      Certain Matters Affecting the Trustee.................................................98
         Section 8.03.      Trustee Not Liable for Certificates or Mortgage Loans................................100
         Section 8.04.      Trustee May Own Certificates.........................................................100
         Section 8.05.      Trustee's Fees and Expenses..........................................................100
         Section 8.06.      Eligibility Requirements for the Trustee.............................................101
         Section 8.07.      Resignation and Removal of the Trustee...............................................101
         Section 8.08.      Successor Trustee....................................................................102
          Section 8.09.      Merger or Consolidation of the Trustee...............................................103
         Section 8.10.      Appointment of Co-Trustee or Separate Trustee........................................103
         Section 8.11.      Tax Matters..........................................................................104
</TABLE>

                                     -ii-

<PAGE>

                                               TABLE OF CONTENTS
                                                -----------------
                                                  (Continued)


<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                                ----
<S>                         <C>                                                                                  <C>
ARTICLE NINE TERMINATION                                                                                          108

         Section 9.01.      Termination upon Liquidation or Purchase of the Mortgage Loans.......................108
         Section 9.02.      Final Distribution on the Certificates...............................................109
         Section 9.03.      Additional Termination Requirements..................................................110
         Section 9.04.      Termination of the Swap Trust, the Supplemental Interest Trust and the
                            Corridor Trust.......................................................................110

ARTICLE TEN MISCELLANEOUS PROVISIONS                                                                             111

         Section 10.01.     Amendment............................................................................111
         Section 10.02.     Recordation of Agreement; Counterparts...............................................112
         Section 10.03.     Governing Law........................................................................113
         Section 10.04.     Intention of Parties.................................................................113
         Section 10.05.     Notices. 113
         Section 10.06.     Severability of Provisions...........................................................114
         Section 10.07.     Assignment...........................................................................114
         Section 10.08.     Limitation on Rights of Certificateholders...........................................114
         Section 10.09.     Inspection and Audit Rights..........................................................115
         Section 10.10.     Certificates Nonassessable and Fully Paid............................................115
         Section 10.11.     Official Record......................................................................116
         Section 10.12.     Protection of Assets.................................................................116
         Section 10.13.     Qualifying Special Purpose Entity....................................................116

ARTICLE ELEVEN EXCHANGE ACT REPORTING                                                                            117

         Section 11.01.     Filing Obligations...................................................................117
         Section 11.02.     Form 10-D Filings....................................................................117
         Section 11.03.     Form 8-K Filings.....................................................................118
         Section 11.04.     Form 10-K Filings....................................................................118
         Section 11.05.     Sarbanes-Oxley Certification.........................................................119
         Section 11.06.     Form 15 Filing.......................................................................119
         Section 11.07.     Report on Assessment of Compliance and Attestation...................................119
         Section 11.08.     Use of Subcontractors................................................................121
         Section 11.09.     Amendments...........................................................................121
</TABLE>


                                     -iii-

<PAGE>

                                               TABLE OF CONTENTS
                                               -----------------
                                                  (Continued)

<TABLE>
<CAPTION>
                                                            SCHEDULES
<S>                      <C>                                                                                     <C>
Schedule I:              Mortgage Loan Schedule...................................................................S-I-1
Schedule II:             Representations and Warranties of the Seller/Servicer...................................S-II-1
Schedule III:            Representations and Warranties as to the Mortgage Loans................................S-III-1
Schedule IV:             Form of Monthly Report..................................................................S-IV-1


                                                             EXHIBITS
Exhibit A:                Form of Senior Certificate.................................................................A-1
Exhibit B:               Form of Subordinated Certificate...........................................................B-1
Exhibit C:               Form of Class A-R Certificate..............................................................C-1
Exhibit D:               [Reserved].................................................................................D-1
Exhibit E                Form of Reverse of Certificates............................................................E-1
Exhibit F:               Form of Class P Certificates...............................................................F-1
Exhibit G-1:             Form of Initial Certification of Trustee.................................................G-1-1
Exhibit G-2:             [Reserved]...............................................................................G-2-1
Exhibit G-3:             Form of Delay Delivery Certification.....................................................G-3-1
Exhibit G-4:             [Reserved]...............................................................................G-4-1
Exhibit H-1:             Form of Final Certification of Trustee...................................................H-1-1
Exhibit H-2:             [Reserved]...............................................................................H-2-1
Exhibit I:               Form of Transfer Affidavit.................................................................I-1
Exhibit J:               Form of Transferor Certificate.............................................................J-1
Exhibit K:               Form of Investment Letter (Non-Rule 144A)..................................................K-1
Exhibit L:               Form of Rule 144A Letter...................................................................L-1
Exhibit M:               Form of Request for Release (for Trustee)..................................................M-1
Exhibit N:               Request for Release of Documents...........................................................N-1
Exhibit O:               [Reserved].................................................................................O-1
Exhibit P-1:             Form of Swap Contract......................................................................P-1
Exhibit P-2:             Form of Corridor Contract..................................................................P-2
Exhibit Q                [Reserved].................................................................................Q-1
Exhibit R-1              Form of Performance Certification (Trustee)................................................R-1
Exhibit S                Form of Servicing Criteria to be Addressed in Assessment
                         of Compliance Statement....................................................................S-2
Exhibit T                Form of List of Item 1119 Parties..........................................................T-1
Exhibit U                Form of Sarbanes-Oxley Certification.......................................................U-1
</TABLE>



                                     -iv-

<PAGE>

      THIS POOLING AND SERVICING AGREEMENT, dated as of November 1, 2006, among
INDYMAC MBS, INC., a Delaware corporation, as depositor (the "Depositor"),
IndyMac Bank, F.S.B. ("IndyMac"), a federal savings bank, as seller (in that
capacity, the "Seller") and as servicer (in that capacity, the "Servicer"), and
Deutsche Bank National Trust Company, a national banking association, as
trustee (the "Trustee"), as swap trustee (in that capacity, the "Swap Trustee")
and as supplemental interest trustee for the Supplemental Interest Trustee (in
that capacity, the "Supplemental Interest Trustee").

                           W i t n e s s e t h T h a t

      In consideration of the mutual agreements set forth in this Agreement,
the parties agree as follows:

                             PRELIMINARY STATEMENT

      The Depositor is the owner of the Trust Fund that is hereby conveyed to
the Trustee in return for the Certificates. As provided in this Agreement, the
Trustee shall elect that the Trust Fund (exclusive of the Swap Trust, the Swap
Contract, the Swap Account, the Carryover Reserve Fund and any amounts in
respect of waived Prepayment Charges paid by the Servicer to the Class P-1 and
Class P-2 Certificates pursuant to the second paragraph of Section 3.21) be
treated for federal income tax purposes as comprising three real estate
mortgage investment conduits (each, a "REMIC" or, in the alternative,

"REMIC 1", "REMIC 2" and the "Master REMIC"). Each Certificate, other than the
Class A-R Certificate, will represent ownership of one or more regular
interests in the Master REMIC for purposes of the REMIC Provisions. Each REMIC
2 Interest (other than the Class R-2 Interest) is hereby designated as a
regular interest in REMIC 2. Each REMIC 1 Interest (other than the Class R-1
Interest) is hereby designated as a regular interest in REMIC 1. The Class A-R
represents ownership of the sole class of residual interest in each REMIC
created under this Agreement. The Master REMIC will hold as assets the several
classes of uncertificated REMIC 2 Interests (other than the Class R-2
Interest). REMIC 2 will hold as assets the several classes of uncertificated
REMIC 1 Interests (other than the Class R-1 Interest). REMIC 1 will hold as
assets all property of the Trust Fund other than the Swap Trust, the Swap
Contract, the Swap Account, the Supplemental Interest Trust, the Supplemental
Interest Reserve Fund and the Carryover Reserve Fund. Each REMIC 1 Interest
(other than the Class R-1 Interest) is hereby designated as a regular interest
in REMIC 1. The latest possible maturity date of all REMIC regular interests
created in this Agreement shall be the Latest Possible Maturity Date. All
amounts in respect of waived Prepayment Charges paid by the Servicer to the
Class P-1 and Class P-2 Certificates pursuant to the second paragraph of
Section 3.21 will be treated as paid directly by the Servicer to the Class P-1
and Class P-2 Certificates and not as paid by or through any REMIC created
hereunder.

REMIC 1

      The REMIC 1 Interests will have the Initial Principal Balances and
Pass-Through Rates as set forth in the following table:

REMIC 1 Interests       Initial Principal Balance(1)         Pass-Through Rate
-----------------       ----------------------------         -----------------
Class 1-1A                   $    3,368,747.50                      (2)
Class 1-1B                   $    3,368,747.50                      (3)
Class 1-2A                   $    4,466,207.50                      (2)

<PAGE>

REMIC 1 Interests       Initial Principal Balance(1)         Pass-Through Rate
-----------------       ----------------------------         -----------------
Class 1-2B                   $    4,466,207.50                      (3)
Class 1-3A                   $    5,564,275.00                      (2)
Class 1-3B                   $    5,564,275.00                      (3)
Class 1-4A                   $    6,656,758.75                       (2)
Class 1-4B                   $    6,656,758.75                      (3)
Class 1-5A                   $    7,737,911.25                      (2)
Class 1-5B                   $    7,737,911.25                      (3)
Class 1-6A                   $    8,798,537.50                      (2)
Class 1-6B                   $    8,798,537.50                      (3)
Class 1-7A                   $    9,827,076.25                      (2)
Class 1-7B                   $    9,827,076.25                      (3)
Class 1-8A                   $   10,929,117.50                      (2)
Class 1-8B                   $   10,929,117.50                      (3)
Class 1-9A                   $   11,721,595.00                      (2)
Class 1-9B                   $   11,721,595.00                       (3)
Class 1-10A                  $   12,547,456.25                      (2)
Class 1-10B                  $   12,547,456.25                      (3)
Class 1-11A                  $   13,194,711.25                      (2)
Class 1-11B                  $   13,194,711.25                      (3)
Class 1-12A                  $   13,443,976.25                      (2)
Class 1-12B                  $   13,443,976.25                      (3)
Class 1-13A                  $   13,029,672.50                      (2)
Class 1-13B                   $   13,029,672.50                      (3)
Class 1-14A                  $   12,628,128.75                      (2)
Class 1-14B                  $   12,628,128.75                      (3)
Class 1-15A                  $   12,238,953.75                      (2)
Class 1-15B                  $   12,238,953.75                      (3)
Class 1-16A                  $   11,861,770.00                      (2)
Class 1-16B                  $   11,861,770.00                      (3)
Class 1-17A                  $   11,593,152.50                       (2)
Class 1-17B                  $   11,593,152.50                      (3)
Class 1-18A                  $   11,138,915.00                      (2)
Class 1-18B                  $   11,138,915.00                      (3)
Class 1-19A                   $   10,906,010.00                      (2)
Class 1-19B                  $   10,906,010.00                      (3)
Class 1-20A                  $   10,522,042.50                      (2)
Class 1-20B                  $   10,522,042.50                      (3)
Class 1-21A                  $   10,534,220.00                      (2)
Class 1-21B                  $   10,534,220.00                      (3)
Class 1-22A                  $    9,987,640.00                      (2)
Class 1-22B                  $    9,987,640.00                       (3)
Class 1-23A                  $    9,502,735.00                      (2)
Class 1-23B                  $    9,502,735.00                      (3)
Class 1-24A                  $    9,410,452.50                      (2)
Class 1-24B                  $    9,410,452.50                      (3)


                                       2
<PAGE>

REMIC 1 Interests       Initial Principal Balance(1)         Pass-Through Rate
-----------------       ----------------------------         -----------------
Class 1-25A                   $    9,000,366.25                      (2)
Class 1-25B                  $    9,000,366.25                      (3)
Class 1-26A                  $    8,642,382.50                      (2)
Class 1-26B                  $    8,642,382.50                      (3)
Class 1-27A                  $    8,375,991.25                      (2)
Class 1-27B                  $    8,375,991.25                      (3)
Class 1-28A                  $    8,117,806.25                      (2)
Class 1-28B                  $    8,117,806.25                       (3)
Class 1-29A                  $    7,867,577.50                      (2)
Class 1-29B                  $    7,867,577.50                      (3)
Class 1-30A                  $    7,625,055.00                      (2)
Class 1-30B                   $    7,625,055.00                      (3)
Class 1-31A                  $    7,601,283.75                      (2)
Class 1-31B                  $    7,601,283.75                      (3)
Class 1-32A                  $    7,312,298.75                      (2)
Class 1-32B                  $    7,312,298.75                      (3)
Class 1-33A                  $    7,286,421.25                      (2)
Class 1-33B                  $    7,286,421.25                      (3)
Class 1-34A                  $    7,471,183.75                       (2)
Class 1-34B                  $    7,471,183.75                      (3)
Class 1-35A                  $    7,820,412.50                      (2)
Class 1-35B                  $    7,820,412.50                      (3)
Class 1-36A                  $   11,078,551.25                      (2)
Class 1-36B                  $   11,078,551.25                      (3)
Class 1-37A                  $    6,006,413.75                      (2)
Class 1-37B                  $    6,006,413.75                      (3)
Class 1-38A                   $    5,802,386.25                      (2)
Class 1-38B                  $    5,802,386.25                      (3)
Class 1-39A                  $    5,528,156.25                      (2)
Class 1-39B                  $    5,528,156.25                       (3)
Class 1-40A                  $    5,411,618.75                      (2)
Class 1-40B                  $    5,411,618.75                      (3)
Class 1-41A                  $    5,287,016.25                      (2)
Class 1-41B                  $    5,287,016.25                      (3)
Class 1-42A                  $    5,027,906.25                      (2)
Class 1-42B                  $    5,027,906.25                      (3)
Class 1-43A                  $    4,872,892.50                      (2)
Class 1-43B                   $    4,872,892.50                      (3)
Class 1-44A                  $    4,773,348.75                      (2)
Class 1-44B                  $    4,773,348.75                      (3)
Class 1-45A                  $    4,639,280.00                      (2)
Class 1-45B                  $    4,639,280.00                      (3)
Class 1-46A                  $    4,432,456.25                      (2)
Class 1-46B                  $    4,432,456.25                      (3)
Class 1-47A                  $    4,295,792.50                       (2)


                                       3
<PAGE>

REMIC 1 Interests       Initial Principal Balance(1)         Pass-Through Rate
-----------------       ----------------------------         -----------------
Class 1-47B                  $    4,295,792.50                      (3)
Class 1-48A                  $    4,211,130.00                      (2)
Class 1-48B                  $    4,211,130.00                      (3)
Class 1-49A                  $    4,033,497.50                      (2)
Class 1-49B                   $    4,033,497.50                      (3)
Class 1-50A                  $    3,956,792.50                      (2)
Class 1-50B                  $    3,956,792.50                      (3)
Class 1-51A                  $    3,863,485.00                       (2)
Class 1-51B                  $    3,863,485.00                      (3)
Class 1-52A                  $    3,667,942.50                      (2)
Class 1-52B                  $    3,667,942.50                      (3)
Class 1-53A                  $    3,728,050.00                      (2)
Class 1-53B                  $    3,728,050.00                      (3)
Class 1-54A                  $    3,908,715.00                      (2)
Class 1-54B                  $    3,908,715.00                      (3)
Class 1-55A                   $    4,045,268.75                      (2)
Class 1-55B                  $    4,045,268.75                      (3)
Class 1-56A                  $    5,566,522.50                      (2)
Class 1-56B                  $    5,566,522.50                      (3)
Class 1-57A                  $    5,707,737.50                      (2)
Class 1-57B                  $    5,707,737.50                      (3)
Class 1-58A                  $   11,619,468.75                      (2)
Class 1-58B                  $   11,619,468.75                       (3)
Class 1-59A                  $   23,645,558.75                      (2)
Class 1-59B                  $   23,645,558.75                      (3)
Class 1-60A                  $   41,989,282.50                      (2)
Class 1-60B                  $   41,989,282.50                      (3)
Class 1-61A                  $      462,647.50                      (2)
Class 1-61B                  $      462,647.50                      (3)
Class 1-62A                  $      448,378.75                      (2)
Class 1-62B                   $      448,378.75                      (3)
Class 1-63A                  $      434,550.00                      (2)
Class 1-63B                  $      434,550.00                      (3)
Class 1-64A                  $      421,145.00                       (2)
Class 1-64B                  $      421,145.00                      (3)
Class 1-65A                  $      408,156.25                      (2)
Class 1-65B                  $      408,156.25                      (3)
Class 1-66A                  $      395,567.50                      (2)
Class 1-66B                  $      395,567.50                      (3)
Class 1-67A                  $      383,365.00                      (2)
Class 1-67B                  $      383,365.00                      (3)
Class 1-68A                   $      371,540.00                      (2)
Class 1-68B                  $      371,540.00                      (3)
Class 1-69A                  $      360,080.00                      (2)
Class 1-69B                  $      360,080.00                      (3)


                                       4
<PAGE>

REMIC 1 Interests       Initial Principal Balance(1)         Pass-Through Rate
-----------------       ----------------------------         -----------------
Class 1-70A                  $      348,971.25                       (2)
Class 1-70B                  $      348,971.25                      (3)
Class 1-71A                  $      338,207.50                      (2)
Class 1-71B                  $      338,207.50                      (3)
Class 1-72A                  $       327,773.75                      (2)
Class 1-72B                  $      327,773.75                      (3)
Class 1-73A                  $      317,662.50                      (2)
Class 1-73B                  $      317,662.50                      (3)
Class 1-74A                   $      307,862.50                      (2)
Class 1-74B                  $      307,862.50                      (3)
Class 1-75A                  $      298,365.00                      (2)
Class 1-75B                  $      298,365.00                       (3)
Class 1-76A                  $      289,158.75                      (2)
Class 1-76B                  $      289,158.75                      (3)
Class 1-77A                  $      280,240.00                      (2)
Class 1-77B                  $      280,240.00                      (3)
Class 1-78A                  $      304,933.75                      (2)
Class 1-78B                  $      304,933.75                      (3)
Class 1-79A                  $      331,200.00                      (2)
Class 1-79B                   $      331,200.00                      (3)
Class 1-80A                  $      298,162.50                      (2)
Class 1-80B                  $      298,162.50                      (3)
Class 1-81A                  $      562,820.00                      (2)
Class 1-81B                  $      562,820.00                      (3)
Class 1-82A                  $      774,271.25                      (2)
Class 1-82B                  $      774,271.25                      (3)
Class 1-83A                  $    2,973,065.00                       (2)
Class 1-83B                  $    2,973,065.00                      (3)
Class 1-84A                  $    1,427,765.00                      (2)
Class 1-84B                  $    1,427,765.00                      (3)
Class 1-Support             (4)                                    (4)
Class 1-P-1                              $100                      (5)
Class 1-P-2                              $100                      (5)
Class R-1                   (6)                                    (6)

-----------------------
(1)    Scheduled principal, Principal Prepayments and Realized Losses will be
      allocated first, to the Class 1-Support Interest and second, among the
      other Classes designated "1-", first, sequentially to the Class having
      the lowest cardinal number following such designation, in each case until
      reduced to zero, and second, among each class having the same cardinal
      number pro rata between each such class.

(2)    Prior to the Distribution Date in December 2013, a rate equal to twice
      the Weighted Average Adjusted Net Mortgage Rate of the Mortgage Loans
      less 10.10% per annum. On and after the Distribution Date in December
      2013 a rate equal to the Weighted Average Adjusted Net Mortgage Rate of
      the Mortgage Loans.


                                       5
<PAGE>

(3)    Prior to the Distribution Date in December 2013, a rate equal to the
      lesser of (i) 10.10% per annum and (ii) twice the Weighted Average
      Adjusted Net Mortgage Rate of the Mortgage Loans. On and after the
      Distribution Date in December 2013, a rate equal to the Weighted Average
      Adjusted Net Mortgage Rate of the Mortgage Loans.

(4)    On the Closing Date and on each Distribution Date, following the
      allocation of Principal Amounts and Realized Losses, the principal
      balance in respect of the Class 1-Support Interest will equal the excess
      of the principal balance of the Mortgage Loans (less $100 on the Closing
      Date) over the principal balance in respect of the remaining REMIC 1
      Interests other than the Class R-1 Interests. The Class 1-Support
      Interest will accrue interest at a rate equal to the Weighted Average
      Adjusted Net Mortgage Rate.

(5)    The Class 1-P-1 and Class 1-P-2 Interests will not be entitled to any
      interest, but will be entitled to 100% of any Prepayment Charges
      collected on the Mortgage Loans. The Class 1-P-1 Interests will be
      entitled to 100% of any Hard Prepayment Charges and the Class 1-P-2
       Interests will be entitled to 100% of any Soft Prepayment Charges paid on
      the Mortgage Loans.

(6)    The Class R-1 Interest is the sole class of residual interest in REMIC 1.
      It has no principal balance and pays no principal or interest.

REMIC 2

The REMIC 2 Interests will have the initial principal balances, Pass-Through
Rates and corresponding Classes of Certificates as set forth in the following
table:

                                                          Corresponding
                             Principal      Pass-Through     Certificates
REMIC 2 Interests            Balances            Rate        Classes
-----------------            --------            ----        -------------
                
Class 2-1-A-1A                  (1)               (2)         Class 1-A-1A
Class 2-1-A-1B                  (1)              (2)         Class 1-A-1B
Class 2-2-A-1A                  (1)              (2)         Class 2-A-1A
Class 2-2-A-1B                  (1)              (2)         Class 2-A-1B
Class 2-2-A-2                    (1)              (2)         Class 2-A-2
Class 2-2-A-3A                  (1)              (2)         Class 2-A-3A
Class 2-2-A-3B                  (1)              (2)         Class 2-A-3B
Class 2-M-1                     (1)              (2)         Class M-1
Class 2-M-2                     (1)              (2)         Class M-2
Class 2-M-3                     (1)              (2)         Class M-3
Class 2-M-4                     (1)              (2)         Class M-4
Class 2-M-5                     (1)               (2)         Class M-5
Class 2-M-6                     (1)              (2)         Class M-6
Class 2-M-7                     (1)              (2)         Class M-7
Class 2-Accrual                 (1)              (2)         N/A
Class 2-Swap IO                 (3)              (3)         N/A
Class 2-P-1                    $100              (4)         Class P-1
Class 2-P-2                    $100              (4)         Class P-2
Class R-2                             (5)        (5)         N/A


                                        6
<PAGE>

-----------------------
(1)    On each Distribution Date, Principal Amounts and Realized Losses will be
      allocated to the REMIC 2 Interests in such a manner that, following such
      allocations: (i) the principal balances of the REMIC 2 Interests (other
      than the Class 2-Accrual, Class 2-Swap IO, Class 2-P-1, Class 2-P-2 and
      Class R-2 Interests) will equal 50% of the Certificate Balance of their
      Corresponding Certificates for such Distribution Date, (ii) the Class
      2-Accrual Interest will have a principal balance equal to 50% of the
      aggregate Stated Principal Balance of the Mortgage Loans plus 50% of the
      Overcollateralized Amount.

(2)    The Pass-Through Rate will equal the weighted average of the Pass-Through
      Rates of the REMIC 2 Interests (other than the Class R-1 Interests)
      treating each "B" interest as capped at a rate equal to the product of
      (i) 2 and (ii) LIBOR on each Distribution Date whose cardinal number
      preceding such designation (e.g., -1, -2, -3) is not exceeded by the
      ordinal number of the Distribution Date following the Closing Date (e.g.,
      first, second, third) for such Distribution Date (the "REMIC Cap").


(3)    For each Distribution Date, the REMIC 2-Swap IO shall be entitled to
      receive from each "B" interest whose cardinal number preceding such
      designation (e.g., -1, -2, -3) is not exceeded by the ordinal number of
      the Distribution Date following the Closing Date (e.g., first, second,
      third) for such Distribution Date the interest accruing on such interest
      in excess of an amount of interest accruing on such interest's balance at
      a rate equal to the excess of: (a) 10.10% over (b) the product of (i) 2
      and (ii) LIBOR.

(4)    The Class 2-P-1 and Class 2-P-2 Interests will not be entitled to any
      interest, but will be entitled to 100% of any Prepayment Charges
      collected on the Mortgage Loans. The Class 2-P-1 Interests will be
      entitled to 100% of any Hard Prepayment Charges and the Class 2-P-2
      Interests will be entitled to 100% of any Soft Prepayment Charges paid on
      the Mortgage Loans.

(5)    The Class R-2 Interest is the sole class of residual interest in REMIC 2.
      It has no principal balance and pays no principal or interest.

                                The Master REMIC

      The following table sets forth the Class Designation, Initial Class
Certificate Balance, Pass-Through Rate, Minimum Denominations and Integral
Multiples in excess thereof in respect of the Certificates, each of which
(other than the Class A-R Certificates) is hereby designated a regular interest
in the Master REMIC, in which such Classes shall be issuable (except that one
Certificate of each Class of Certificates may be issued in a different amount):

<TABLE>
<CAPTION>
                             Initial Class
        Class                  Certificate             Pass-Through                 Minimum         Integral Multiples in
     Designation                  Balance                   Rate                  Denomination         Excess of Minimum
     -----------                 -------                   ----                  ------------         -----------------
<S>                      <C>                         <C>                         <C>                <C>
Class 1-A-1A             $    346,464,000             Floating (1)                   $25,000                   $1,000
Class 1-A-1B             $     38,496,000             Floating (1)                   $25,000                    $1,000
Class 2-A-1A             $    271,304,000             Floating (1)                   $25,000                   $1,000
Class 2-A-1B             $     30,144,000             Floating (1)                   $25,000                   $1,000
Class 2-A-2              $    101,414,000             Floating (1)                   $25,000                   $1,000
</TABLE>


                                       7
<PAGE>

<TABLE>
<CAPTION>
                             Initial Class
        Class                  Certificate             Pass-Through                 Minimum         Integral Multiples in
     Designation                 Balance                   Rate                  Denomination         Excess of Minimum
     -----------                 -------                    ----                  ------------         -----------------
<S>                      <C>                         <C>                         <C>                <C>
Class 2-A-3A             $    180,031,000             Floating (1)                   $25,000                    $1,000
Class 2-A-3B             $     20,003,000             Floating (1)                   $25,000                   $1,000
Class A-R                $            100             Floating (2)                    $100                        N/A
Class M-1                 $     14,863,000             Floating (1)                   $25,000                   $1,000
Class M-2                $     13,270,000             Floating (1)                   $25,000                   $1,000
Class M-3                $      7,431,000              Floating (1)                   $25,000                   $1,000
Class M-4                $      6,901,000             Floating (1)                   $25,000                   $1,000
Class M-5                $     10,616,000             Floating (1)                    $25,000                   $1,000
Class M-6                $      7,962,000             Floating (1)                   $25,000                   $1,000
Class M-7                $      8,493,000             Floating (1)                   $25,000                    $1,000
Class C                                   (3)             (3)                         N/A                     N/A
Class P-1                        $100.00                  (4)                         N/A                     N/A
Class P-2                         $100.00                  (5)                         N/A                     N/A
</TABLE>

(1) The Pass-Through Rate for this Class of Certificates for any Interest
Accrual Period for any Distribution Date will be a per annum rate equal to the
least of (i) LIBOR for that Distribution Date plus the Pass-Through Margin for
that Class and that Interest Accrual Period, (ii) the Net Rate Cap for that
Distribution Date and (iii) 10.5%. Solely for federal income tax purposes, all
monies received by: (i) the Senior and Subordinated Certificates in excess of
the REMIC Cap, will be treated as a paid pursuant to a limited recourse
interest rate cap contract as provided in Section 8.11.

(2) The Pass-Through Rate for the Class A-R Certificates for the Interest
Accrual Period related to each Distribution Date will be a per annum rate equal
to the Weighted Average Adjusted Net Mortgage Rate of the Mortgage Loans. The
Pass-Through Rate for the Class A-R Certificates for the Interest Accrual
Period related to the first Distribution Date is 6.537% per annum. The Class
A-R Certificates will receive interest and principal pursuant to its ownership
of the Class R-1 Interests.

(3) For federal income tax purposes, the Class C Certificates will represent
three classes of regular interests issued by the Master REMIC, (i) a class that
does not accrue interest and has a principal balance equal to the
Overcollateralized Amount as of the Closing Date, (ii) a class that is entitled
to receive all interest accruals in respect of the Class 2-Swap IO Interest,
and (iii) a class that has a notional balance equal to the sum of the principal
balances of the REMIC 2 Regular Interests (excluding the Class R-2, Class
2-Swap IO, Class 2-P-1 and Class 2-P-2 Interests), on the immediately preceding
Distribution Date, and has a pass through rate equal to the excess of: (a) the
REMIC Cap over (b) the product of 2 and the weighted average of the pass
through rates in respect of such Classes of REMIC 2 Interests, subjecting the
Class 2-Accrual Interest to a cap equal to zero.

(4) The Class P-1 Certificates will not be entitled to any interest, but will
be entitled to 100% of any Hard Prepayment Charges collected on the Mortgage
Loans. All amounts in respect of waived Hard Prepayment Charges paid by the
Servicer to the Class P-1 Certificates pursuant to the second paragraph of
Section 3.21 will be treated as paid directly by the Servicer to the Class P-1
Certificates and not as paid by or through any REMIC created under this
Agreement


                                        8
<PAGE>

(5) The Class P-2 Certificates will not be entitled to any interest, but will
be entitled to 100% of any Soft Prepayment Charges paid on the Mortgage Loans.
All amounts in respect of waived Soft Prepayment Charges paid by the Servicer
to the Class P-2 Certificates pursuant to the second paragraph of Section 3.21
will be treated as paid directly by the Servicer to the Class P-2 Certificates
and not as paid by or through any REMIC created under this Agreement.

      The foregoing REMIC structure is intended to cause all of the cash from
the Mortgage Loans to flow through to the Master REMIC as cash flow on a REMIC
regular interest, without creating any shortfall--actual or potential (other
than for credit losses) to any REMIC regular interest.

      For any purpose for which the Pass-Through Rates (other than in the
Master REMIC) are calculated, the interest rate on the Mortgage Loans shall be
appropriately adjusted to account for the difference between the monthly day
count convention of the Mortgage Loans and the monthly day count convention of
the regular interests issued by each of the REMICs. For purposes of calculating
the Pass-Through Rates for each of the interests issued by each REMIC (other
than the Master REMIC) created hereunder such rates shall be adjusted to equal
a monthly day count convention based on a 30 day month for each Due Period and
a 360-day year so that the Mortgage Loans and all regular interests will be
using the same monthly day count convention.

Set forth below are designations of Classes of Certificates to the categories
used in this Agreement:

Accretion Directed Certificates..........   None.
Accrual Certificates.....................   None.
Book-Entry Certificates..................   All Classes of Certificates other
                                           than the Physical Certificates.
Class P Certificates.....................   Class P-1 and Class P-2
                                           Certificates.
COFI Certificates........................   None.
Components...............................   None.
Component Certificates...................   None.
Delay Certificates.......................   Class A-R Certificates.
ERISA-Restricted Certificates............   The Private Certificates and
                                            Residual Certificates; and
                                           Certificates of any Class that does
                                           not or no longer has a rating of
                                            BBB- or its equivalent, or better,
                                           from at least one Rating Agency.
LIBOR Certificates.......................   The Senior Certificates (other than
                                           the Class A-R Certificates) and
                                           Subordinated Certificates.
Group 1 Senior Certificates..............   Class 1-A-1A, Class 1-A-1B and
                                           Class A-R Certificates.
Group 1 Certificates.....................   Group 1 Senior Certificates and the
                                           portion of the Subordinated
                                           Certificates related to Loan Group
                                           1.
Group 2 Senior Certificates..............   Class 2-A-1A, Class 2-A-1B, Class
                                           2-A-2, Class 2-A-3A and Class
                                           2-A-3B Certificates
Group 2 Certificates.....................   Group 2 Senior Certificates and the
                                           portion of the Subordinated
                                           Certificates related to Loan Group
                                           2.


                                        9
<PAGE>

Non-Delay Certificates...................   All LIBOR Certificates.
Notional Amount Certificates.............   None.
Notional Amount Components...............   None.
Offered Certificates.....................   All Classes of Certificates other
                                            than the Private Certificates.
Physical Certificates....................   Class A-R Certificates and Private
                                           Certificates.
Planned Principal Classes................   None.
Principal Only Certificates..............   None.
Principal Only Components................   None.
Private Certificates.....................   Class C and Class P Certificates.
Rating Agencies..........................   Moody's and S&P.
Regular Certificates.....................   All Classes of Certificates other
                                           than the Class A-R Certificates.
Residual Certificate.....................   Class A-R Certificates.
Retained Certificates....................   None.
Senior Certificates......................   All Group 1 and Group 2 Senior
                                           Certificates.
Super Senior Certificates................   Class 1-A-1A, Class 2-A-1A and
                                           Class 2-A-3A Certificates.
Support Certificates.....................   Class 1-A-1B, Class 2-A-1B and
                                           Class 2-A-3B Certificates
Subordinated Certificates................   Class M-1, Class M-2, Class M-3,
                                            Class M-4, Class M-5, Class M-6 and
                                           Class M-7 Certificates.
Targeted Principal Classes...............   None.
Targeted Principal Component.............   None.

      With respect to any of the foregoing designations as to which the
corresponding reference is "None," all defined terms and provisions in this
Agreement relating solely to such designations shall be of no force or effect,
and any calculations in this Agreement incorporating references to such
designations shall be interpreted without reference to such designations and
amounts. Defined terms and provisions in this Agreement relating to statistical
rating agencies not designated above as Rating Agencies shall be of no force or
effect.


                                       10
<PAGE>

                                  Article One

                                  DEFINITIONS

      Section 1.01. Definitions.

      Unless the context requires a different meaning, capitalized terms are
used in this Agreement as defined below.

      Accretion Directed Certificates: As specified in the Preliminary
Statement.

      Accretion Direction Rule: Not applicable.

      Accrual Amount: Not applicable.

      Accrual Certificates: As specified in the Preliminary Statement.

      Accrual Termination Date: Not applicable.

      Additional Designated Information: As defined in Section 11.02.

      Adjusted Mortgage Rate: As to each Mortgage Loan and at any time, the per
annum rate equal to the Mortgage Rate less the Servicing Fee Rate.

      Adjusted Net Mortgage Rate: As to each Mortgage Loan and any Distribution
Date, the per annum rate equal to the Mortgage Rate of that Mortgage Loan (as
of the Due Date in the month preceding the month in which such Distribution
Date occurs) less the Expense Fee Rate for that Mortgage Loan.

      Adjustment Date: A date specified in each Mortgage Note as a date on
which the Mortgage Rate on the related Mortgage Loan is subject to adjustment.

      Advance: The payment required to be made by the Servicer with respect to
any Distribution Date pursuant to Section 4.01, the amount of any such payment
being equal to the aggregate of payments of principal and interest (net of the
Servicing Fee) on the Mortgage Loans that were due during the related Due
Period and not received as of the close of business on the related
Determination Date, together with an amount equivalent to interest on each REO
Property, net of any net income from such REO Property, less the aggregate
amount of any such delinquent payments that the Servicer has determined would
constitute a Nonrecoverable Advance if advanced.

      Advance Notice: As defined in Section 4.01(b).

      Advance Deficiency: As defined in Section 4.01(b).

      Affiliate: With respect to any Person, any other Person controlling,
controlled or under common control with such Person. For purposes of this
definition, "control" means the power to direct the management and policies of
a Person, directly or indirectly, whether through ownership of voting
securities, by contract, or otherwise and "controlling" and "controlled" shall
have meanings correlative to the foregoing. Affiliates also include any
entities consolidated with the requirements of generally accepted accounting
principles.

      Agreement: This Pooling and Servicing Agreement and all amendments and
supplements.


                                      11
<PAGE>

      Amount Held for Future Distribution: As to any Distribution Date and the
Mortgage Loans in a Loan Group, the aggregate amount held in the Certificate
Account at the close of business on the related Determination Date on account
of (i) Principal Prepayments on the Mortgage Loans in such Loan Group received
after the last day of the related Prepayment Period and Liquidation Proceeds
and Subsequent Recoveries relating to the Mortgage Loans in such Loan Group
received in the month of such Distribution Date and (ii) all Scheduled Payments
relating to the Mortgage Loans in that Loan Group due after the related Due
Date.

      Applied Realized Loss Amount: With respect to any Distribution Date and
any Class of LIBOR Certificates, the Realized Losses with respect to the
Mortgage Loans that are to be applied in reduction of the Class Certificate
Balance of any such Class of Certificates pursuant to this Agreement, which, in
the case of the Subordinated Certificates, shall equal the amount, if any, by
which the aggregate Class Certificate Balance of all LIBOR Certificates (after
all distributions of principal on such Distribution Date) exceeds the aggregate
Stated Principal Balance of the Mortgage Loans as of the Due Date in the month
in which such Distribution Date occurs (after giving effect to Principal
Prepayments and Liquidation Proceeds allocated to principal and Subsequent
Recoveries received in the related Prepayment Period). With respect to the
Senior Certificates in a Senior Certificate Group and any Distribution Date on
or after the Senior Credit Support Depletion Date, in such Senior Certificate
Group the amount, if any, by which the aggregate Class Certificate Balance of
the Senior Certificates in such Senior Certificate Group (after all
distributions of principal on such Distribution Date) exceeds the aggregate
Stated Principal Balance of the Mortgage Loans in the related Loan Group as of
the Due Date in the month in which such Distribution Date occurs (after giving
effect to Principal Prepayments and Liquidation Proceeds allocated to principal
and Subsequent Recoveries received in the related Prepayment Period).

      Appraised Value: With respect to any Mortgage Loan, the Appraised Value
of the related Mortgaged Property shall be: (i) with respect to a Mortgage Loan
other than a Refinance Loan, the lesser of (a) the value of the Mortgaged
Property based upon the appraisal made at the time of the origination of such
Mortgage Loan and (b) the sales price of the Mortgaged Property at the time of
the origination of such Mortgage Loan; and (ii) with respect to a Refinance
Loan, the value of the Mortgaged Property based upon the appraisal made at the
time of the origination of such Refinance Loan.

      Available Funds: As to any Distribution Date, the sum of (a) the
aggregate amount held in the Certificate Account at the close of business on
the related Determination Date, including any Subsequent Recoveries, net of the
Amount Held for Future Distribution, net of Prepayment Charges and net of
amounts permitted to be withdrawn from the Certificate Account pursuant to
clauses (i) - (viii), inclusive, of Section 3.09(a) and amounts permitted to be
withdrawn from the Distribution Account pursuant to clauses (i) - (ii),
inclusive, of Section 3.09(b), (b) the amount of the Advance, (c) in connection
with Defective Mortgage Loans, the aggregate of the Purchase Prices and
Substitution Adjustment Amounts deposited on the related Distribution Account
Deposit Date, and (d) any amount deposited on the related Distribution Account
Deposit Date pursuant to Section 3.10. The Holders of the Class P Certificates
will be entitled to all Prepayment Charges received on the Mortgage Loans and
such amounts will not be available for distribution to the Holders of any other
Class of Certificates.

      Bankruptcy Code: The United States Bankruptcy Reform Act of 1978, as
amended.

      Bankruptcy Coverage Termination Date: Not applicable.

      Bankruptcy Loss: Not applicable.

      Bankruptcy Loss Coverage Amount: Not applicable.


                                      12
<PAGE>

      Blanket Mortgage: The mortgage or mortgages encumbering a Cooperative
Property.

      Book-Entry Certificates: As specified in the Preliminary Statement.

      Business Day: Any day other than (i) a Saturday or a Sunday, or (ii) a
day on which the banking institutions in the City of New York, New York, the
State of California or the city in which the Corporate Trust Office of the
Trustee is located are authorized or obligated by law or executive order to be
closed.

      Carryover Reserve Fund: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 4.06 with a depository
institution in the name of the Trustee for the benefit of the
Certificateholders and designated "Deutsche Bank National Trust Company, in
trust for the registered holders of IndyMac INDX Mortgage Loan Trust 2006-AR35,
Mortgage Pass-Through Certificates, Series 2006-AR35."

      Certificate: Any one of the certificates issued by the Trust Fund and
executed by the Trustee in substantially the forms attached as exhibits.

      Certificate Account: The separate Eligible Account or Accounts created
and maintained by the Servicer pursuant to Section 3.06(d) with a depository
institution in the name of the Servicer for the benefit of the Trustee on
behalf of Certificateholders and designated "IndyMac Bank, F.S.B., in trust for
the registered holders of IndyMac INDX Mortgage Loan Trust 2006-AR35, Mortgage
Pass-Through Certificates, Series 2006-AR35."

      Certificate Balance: With respect to any Certificate (other than the
Class C Certificates) at any date, the maximum dollar amount of principal to
which the Holder thereof is then entitled under this Agreement, such amount
being equal to the Denomination thereof (A) plus, with respect to the LIBOR
Certificates, any increase to the Certificate Balance of such Certificate
pursuant to Section 4.02 due to the receipt of Subsequent Recoveries and (B)
minus the sum of (i) all distributions of principal previously made with
respect to that Certificate and (ii) with respect to the LIBOR Certificates,
any Applied Realized Loss Amounts allocated to such Certificate on previous
Distribution Dates pursuant to Section 4.02 without duplication.

      Certificate Group: Any of the Group 1 Certificates or the Group 2
Certificates, as the context requires.

      Certificate Owner: With respect to a Book-Entry Certificate, the Person
who is the beneficial owner of the Book-Entry Certificate. For the purposes of
this Agreement, in order for a Certificate Owner to enforce any of its rights
under this Agreement, it shall first have to provide evidence of its beneficial
ownership interest in a Certificate that is reasonably satisfactory to the
Trustee, the Depositor and/or the Servicer, as applicable.

      Certificate Registrar: Deutsche Bank National Trust Company and its
successors and, if a successor trustee is appointed under this Agreement, the
successor.

      Certificate Register: The register maintained pursuant to Section 5.02.

      Certificateholder or Holder: The person in whose name a Certificate is
registered in the Certificate Register, except that, solely for the purpose of
giving any consent pursuant to this Agreement, any Certificate registered in
the name of the Depositor or any affiliate of the Depositor is not Outstanding
and the Percentage Interest evidenced thereby shall not be taken into account
in determining whether the requisite amount of Percentage Interests necessary
to effect a consent has been obtained, except that if the


                                      13
<PAGE>

Depositor or its affiliates own 100% of the Percentage Interests evidenced by a
Class of Certificates, the Certificates shall be Outstanding for purposes of
any provision of this Agreement requiring the consent of the Holders of
Certificates of a particular Class as a condition to the taking of any action.
The Trustee is entitled to rely conclusively on a certification of the
Depositor or any affiliate of the Depositor in determining which Certificates
are registered in the name of an affiliate of the Depositor.



      Certification Party: As defined in Section 11.05.

      Certifying Person: As defined in Section 11.05.

      Class: All Certificates bearing the same class designation as set forth
in the Preliminary Statement.

      Class 2-A-1 Allocation Percentage: For any Distribution Date is the
percentage equivalent of a fraction, the numerator of which is the aggregate
Class Certificate Balance of the Class 2-A-1A and Class 2-A-1B Certificates and
the denominator of which is the aggregate Class Certificate Balance of the
Group 2 Senior Certificates.

      Class Certificate Balance: For any Class (other than the Notional Amount
Certificates) as of any date of determination, the aggregate of the Certificate
Balances of all Certificates of the Class as of that date.

      Class C Distributable Amount: As defined in the Preliminary Statement.

      Closing Date: November 30, 2006.

      Code: The Internal Revenue Code of 1986, including any successor or
amendatory provisions.

      COFI: Not applicable.

      COFI Certificates: Not applicable.

      Commission: The United States Securities and Exchange Commission.

      Compensating Interest: For any Distribution Date, 0.125% multiplied by
one-twelfth multiplied by the aggregate Stated Principal Balance of the
Mortgage Loans as of the first day of the prior month.

      Co-op Shares: Shares issued by a Cooperative Corporation.

      Cooperative Corporation: The entity that holds title (fee or an
acceptable leasehold estate) to the real property and improvements constituting
the Cooperative Property and that governs the Cooperative Property, which
Cooperative Corporation must qualify as a Cooperative Housing Corporation under
section 216 of the Code.

      Cooperative Loan: Any Mortgage Loan secured by Co-op Shares and a
Proprietary Lease.

      Cooperative Property: The real property and improvements owned by the
Cooperative Corporation, including the allocation of individual dwelling units
to the holders of the Co-op Shares of the Cooperative Corporation.


                                       14
<PAGE>

      Cooperative Unit: A single family dwelling located in a Cooperative
Property.

      Corporate Trust Office: The designated office of the Trustee in the State
of California at which at any particular time its corporate trust business with
respect to this Agreement is administered, which office at the date of the
execution of this Agreement is located at 1761 East St. Andrew Place, Santa
Ana, California 92705, Attn: Mortgage Administration-IN06AZ (IndyMac MBS, Inc.,
IndyMac INDX Mortgage Loan Trust 2006-AR35, Mortgage Pass-Through Certificates,
Series 2006-AR35), and which is the address to which notices to and
correspondence with the Trustee should be directed. The office of the
Certificate Registrar for purposes of presentment of certificates for
registration of transfer, exchange or final payment is located at DB Services
Tennessee, 648 Grassmere Park Road, Nashville, Tennessee 37211-3658, Attention:
Transfer Unit.

      Corridor Counterparty: The Bank of New York.

       Corridor Certificates: The Class 1-A-1A Certificates.

      Corridor Contract: The interest rate corridor agreement between the
Supplemental Interest Trust and the Corridor Counterparty related to the
Corridor Certificates, a form of which is attached to this Agreement as Exhibit
P-2.

      Covered Certificates: LIBOR Certificates.

      Cumulative Loss Trigger Event: With respect to a Distribution Date on or
after the Stepdown Date occurs if the aggregate amount of Realized Losses on
the Mortgage Loans from (and including) the Cut-off Date to (and including) the
related Due Date (reduced by the aggregate amount of Subsequent Recoveries
received from the Cut-off Date through the Prepayment Period related to that
Due Date) exceeds the applicable percentage, for such Distribution Date, of the
Cut-off Date Pool Principal Balance, as set forth below:

Distribution Date                    Percentage
-----------------                    ----------

December 2008 - November 2009.....   0.30% with respect to December 2008, plus
                                        an additional 1/12th of 0.40% for each
                                        month thereafter through November 2009

December 2009 - November 2010.....   0.70% with respect to December 2009, plus
                                         an additional 1/12th of 0.50% for each
                                        month thereafter through November 2010

December 2010 - November 2011.....   1.20% with respect to December 2010, plus
                                         an additional 1/12th of 0.50% for each
                                        month thereafter through November 2011

December 2011- November 2012......   1.70% with respect to December 2011, plus
                                        an additional 1/12th of 0.30% for each
                                        month thereafter through November 2012

December 2012 and thereafter......   2.00%

      Current Interest: With respect to each Class of Offered Certificates and
each Distribution Date, interest accrued at the applicable Pass-Through Rate
for the applicable Interest Accrual Period on the Class Certificate Balance of
that Class, immediately prior to that Distribution Date.


                                      15
<PAGE>

      Cut-off Date: November 1, 2006.

      Cut-off Date Pool Principal Balance: $1,061,639,887.46.

      Cut-off Date Principal Balance: As to any Mortgage Loan, its Stated
Principal Balance as of the close of business on the Cut-off Date.

      Debt Service Reduction: For any Mortgage Loan, a reduction by a court of
competent jurisdiction in a proceeding under the Bankruptcy Code in the
Scheduled Payment for the Mortgage Loan that became final and non-appealable,
except a reduction resulting from a Deficient Valuation or a reduction that
results in a permanent forgiveness of principal.

      Defective Mortgage Loan: Any Mortgage Loan that is required to be
repurchased pursuant to Section 2.02 or 2.03.

      Deficient Valuation: For any Mortgage Loan, a valuation by a court of
competent jurisdiction of the Mortgaged Property in an amount less than the
then outstanding indebtedness under the Mortgage Loan, or any reduction in the
amount of principal to be paid in connection with any Scheduled Payment that
results in a permanent forgiveness of principal, which valuation or reduction
results from an order of the court that is final and non-appealable in a
proceeding under the Bankruptcy Code.

      Definitive Certificates: Any Certificate evidenced by a Physical
Certificate and any Certificate issued in lieu of a Book-Entry Certificate
pursuant to Section 5.02(e).

      Delay Certificates: As specified in the Preliminary Statement.

      Delay Delivery Certification: A certification substantially in the form
of Exhibit G-3.

      Delay Delivery Mortgage Loans: The Mortgage Loans identified on the
Mortgage Loan Schedule for which all or a portion of a related Mortgage File is
not delivered to the Trustee by the Closing Date. The Depositor shall deliver
the Mortgage Files to the Trustee:

      (A) for at least 70% of the Mortgage Loans in each Loan Group, not later
than the Closing Date, and

      (B) for the remaining 30% of the Mortgage Loans in each Loan Group, not
later than five Business Days following the Closing Date.

      To the extent that the Seller is in possession of any Mortgage File for
any Delay Delivery Mortgage Loan, until delivery of the Mortgage File to the
Trustee as provided in Section 2.01, the Seller shall hold the files as
Servicer, as agent and in trust for the Trustee.

      Deleted Mortgage Loan: As defined in Section 2.03(c).

      Delinquency Trigger Event: With respect to any Distribution Date on or
after the Stepdown Date, if the Rolling Sixty Day Delinquency Rate as of the
last day of the immediately preceding month equals or exceeds 40% of the Senior
Enhancement Percentage for that Distribution Date.

      Delinquent: A Mortgage Loan is "Delinquent" if any monthly payment due on
a Due Date is not made by the close of business on the next scheduled Due Date
for such Mortgage Loan. A Mortgage Loan is "30 days Delinquent" if such monthly
payment has not been received by the close of business on


                                      16
<PAGE>

the corresponding day of the month immediately succeeding the month in which
such monthly payment was due. The determination of whether a Mortgage Loan is
"60 days Delinquent", "90 days Delinquent", etc. shall be made in a like
manner.

      Denomination: For each Certificate, the amount on the face of the
Certificate as the "Initial Certificate Balance of this Certificate" or the
"Initial Notional Amount of this Certificate" or, if neither of the foregoing,
the Percentage Interest appearing on the face of the Certificate.

      Depositor: IndyMac MBS, Inc., a Delaware corporation, or its successor in
interest.

      Depository: The initial Depository shall be The Depository Trust Company,
the nominee of which is CEDE & Co., as the registered Holder of the Book-Entry
Certificates. The Depository shall at all times be a "clearing corporation" as
defined in Section 8-102(a)(5) of the UCC.

      Depository Participant: A broker, dealer, bank, or other financial
institution or other Person for whom from time to time a Depository effects
book-entry transfers and pledges of securities deposited with the Depository.

      Determination Date: As to any Distribution Date, the 18th day of each
month or if that day is not a Business Day the next Business Day, except that
if the next Business Day is less than two Business Days before the related
Distribution Date, then the Determination Date shall be the Business Day
preceding the 18th day of the month.

      Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.06(e) in the name of the
Trustee for the benefit of the Certificateholders and designated "Deutsche Bank
National Trust Company in trust for registered holders of IndyMac INDX Mortgage
Loan Trust 2006-AR35, Mortgage Pass-Through Certificates, Series 2006-AR35."
Funds in the Distribution Account shall be held in trust for the
Certificateholders for the uses and purposes set forth in this Agreement.

      Distribution Account Deposit Date: As to any Distribution Date, 12:30
P.M. Pacific time on the Business Day preceding the Distribution Date.

      Distribution Date: The 25th day of each calendar month after the initial
issuance of the Certificates, or if that day is not a Business Day, the next
Business Day, commencing in December 2006.

       Due Date: For any Mortgage Loan and Distribution Date, the first day of
the month in which such Distribution Date occurs.

      Due Period: For any Distribution Date, the period commencing on the
second day of the month preceding the month in which the Distribution Date
occurs and ending on the first day of the month in which the Distribution Date
occurs.

      EDGAR: The Commission's Electronic Data Gathering, Analysis and Retrieval
system.

      Eligible Account: Any of (i) an account or accounts maintained with a
federal or state chartered depository institution or trust company the
short-term unsecured debt obligations of which (or, in the case of a depository
institution or trust company that is the principal subsidiary of a holding
company, the debt obligations of such holding company) have the highest
short-term ratings of Moody's or Fitch and one of the two highest short-term
ratings of S&P, if S&P is a Rating Agency at the time any amounts are held on
deposit therein, or (ii) an account or accounts in a depository institution or
trust company in which such


                                      17
<PAGE>

accounts are insured by the FDIC (to the limits established by the FDIC) and
the uninsured deposits in which accounts are otherwise secured such that, as
evidenced by an Opinion of Counsel delivered to the Trustee and to each Rating
Agency, the Certificateholders have a claim with respect to the funds in such
account or a perfected first priority security interest against any collateral
(which shall be limited to Permitted Investments) securing such funds that is
superior to claims of any other depositors or creditors of the depository
institution or trust company in which such account is maintained, or (iii) a
trust account or accounts maintained with (a) the trust department of a federal
or state chartered depository institution or (b) a trust company, acting in its
fiduciary capacity or (iv) any other account acceptable to each Rating Agency.
Eligible Accounts may bear interest, and may include, if otherwise qualified
under this definition, accounts maintained with the Trustee.

      ERISA: The Employee Retirement Income Security Act of 1974, as amended.

      ERISA-Qualifying Underwriting: A best efforts or firm commitment
underwriting or private placement that meets the requirements of the
Underwriter's Exemption.

      ERISA-Restricted Certificate: As specified in the Preliminary Statement.

      Escrow Account: The Eligible Account or Accounts established and
maintained pursuant to Section 3.07(a).

      Event of Default: As defined in Section 7.01.

      Excess Cashflow: With respect to any Distribution Date (i) the Interest
Funds for both Loan Groups remaining after the distribution of interest to the
Holders of the Certificates for that Distribution Date pursuant to Section 4.02
(a) and (ii) any Principal Distribution Amount for that Distribution Date
remaining after distributions of the principal to the Offered Certificates
pursuant to Section 4.02 (b).

      Excess Loss: Not applicable.

      Excess Proceeds: For any Liquidated Mortgage Loan, the excess of

      (a) all Liquidation Proceeds from the Mortgage Loan received in the
calendar month in which the Mortgage Loan became a Liquidated Mortgage Loan,
net of any amounts previously reimbursed to the Servicer as Nonrecoverable
Advances with respect to the Mortgage Loan pursuant to Section 3.09(a)(iii),
over

      (b) the sum of (i) the unpaid principal balance of the Liquidated
Mortgage Loan as of the Due Date in the month in which the Mortgage Loan became
a Liquidated Mortgage Loan plus (ii) accrued interest at the Mortgage Rate from
the Due Date for which interest was last paid or advanced (and not reimbursed)
to Certificateholders up to the Due Date applicable to the Distribution Date
following the calendar month during which the liquidation occurred.

      Exchange Act: The Securities Exchange Act of 1934, as amended, and the
rules and regulations promulgated thereunder.

      Exchange Act Reports: Any reports on Form 10-D, Form 8-K and Form 10-K
required to be filed by the Depositor with respect to the Trust Fund under the
Exchange Act.

      Expense Fee Rate: As to each Mortgage Loan, the sum of (a) the related
Servicing Fee Rate and (b) the Trustee Fee Rate.


                                       18
<PAGE>

      Extra Principal Distribution Amount: For any Distribution Date and Loan
Group, the product of (a) the lesser of (1) the Overcollateralization
Deficiency Amount and (2) the Excess Cashflow available for payment pursuant to
Section 4.02 (c)(i) and (b) a fraction, the numerator of which is the Principal
Remittance Amount for that Loan Group and the denominator of which is the sum
of the Principal Remittance Amounts for both Loan Groups.

      FDIC: The Federal Deposit Insurance Corporation, or any successor
thereto.

      FHLMC: The Federal Home Loan Mortgage Corporation, a corporate
instrumentality of the United States created and existing under Title III of
the Emergency Home Finance Act of 1970, as amended, or any successor thereto.

      Final Scheduled Distribution Date: The Distribution Date in the month
immediately following the month of the latest scheduled maturity date for any
of the Mortgage Loans.

      Fitch: Fitch, Inc., or any successor thereto. If Fitch is designated as a
Rating Agency in the Preliminary Statement, for purposes of Section 10.05(b)
the address for notices to Fitch shall be Fitch, Inc., One State Street Plaza,
New York, NY 10004, Attention: MBS Monitoring - IndyMac 2006-AR35, or any other
address Fitch furnishes to the Depositor and the Servicer.

      FNMA: The Federal National Mortgage Association, a federally chartered
and privately owned corporation organized and existing under the Federal
National Mortgage Association Charter Act, or any successor thereto.

      Form 10-D Disclosure Item: With respect to any Person, any material
litigation or governmental proceedings pending against such Person, or against
any of the Trust Fund, the Depositor, the Trustee or the Servicer, if such
Person has actual knowledge thereof.

      Form 10-K Disclosure Item: With respect to any Person, (a) Form 10-D
Disclosure Item, and (b) any affiliations or relationships between such Person
and any Item 1119 Party.

      Fraud Loan: Not applicable.

       Fraud Losses: Not applicable.

      Fraud Loss Coverage Amount: Not applicable.

      Fraud Loss Coverage Termination Date: Not applicable.

      Gross Margin: With respect to each Mortgage Loan, the fixed percentage
set forth in the related Mortgage Note that is added to the Mortgage Index on
each Adjustment Date in accordance with the terms of the related Mortgage Note
used to determine the Mortgage Rate for such Mortgage Loan.

      Group 1 Certificates: As specified in the Preliminary Statement.

       Group 1 Mortgage Loan: Any Mortgage Loan in Loan Group 1.

      Group 1 Principal Distribution Target Amount: For any Distribution Date
(A) after the Stepdown Date if a Trigger Event is not in effect, the excess of
(1) the aggregate Class Certificate Balance of the Group 1 Senior Certificates
immediately prior to such Distribution Date, over (2) the lesser of (x) 86.10%
of the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 1
as of the


                                      19
<PAGE>

Due Date in the month of that Distribution Date (after giving effect to
Principal Prepayments received in the related Prepayment Period) and (y) the
aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 1 as of
the Due Date in the month of that Distribution Date (after giving effect to
Principal Prepayments received in the related Prepayment Period) minus 0.40% of
the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 1 as
of the Cut-off Date, and (B) after the Stepdown Date on which a Trigger Even is
in effect, the Group 1 Principal Distribution Target Amount for the immediately
preceding Distribution Date.

      Group 1 Senior Certificates: As specified in the Preliminary Statement.

      Group 1 Senior Principal Distribution Amount: For any Distribution Date,
the product of (x) the Senior Target Amount and (y) a fraction, the numerator
of which is the Group 1 Principal Distribution Target Amount and the
denominator of which is the sum of the Group 1 Principal Distribution Target
Amount and the Group 2 Principal Distribution Target Amount.

      Group 2 Certificates: As specified in the Preliminary Statement.

      Group 2 Mortgage Loan: Any Mortgage Loan in Loan Group 2.

      Group 2 Principal Distribution Target Amount: For any Distribution Date
(A) after the Stepdown Date if a Trigger Event is not in effect, the excess of
(1) the aggregate Class Certificate Balance of the Group 2 Senior Certificates
immediately prior to such Distribution Date, over (2) the lesser of (x) 86.10%
of the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 2
as of the Due Date in the month of that Distribution Date (after giving effect
to Principal Prepayments received in the related Prepayment Period) and (y) the
aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 2 as of
the Due Date in the month of that Distribution Date (after giving effect to
Principal Prepayments received in the related Prepayment Period) minus 0.40% of
the aggregate Stated Principal Balance of the Mortgage Loans in Loan Group 2 as
of the Cut-off Date, and (B) after the Stepdown Date on which a Trigger Event
is in effect, the Group 2 Principal Distribution Target Amount for the
immediately preceding Distribution Date.

      Group 2 Senior Certificates: As specified in the Preliminary Statement.

      Group 2 Senior Certificates Allocation Method: For any Distribution Date,
the following allocation: concurrently and on a pro rata basis:

      (x) the Class 2-A-1 Allocation Percentage of any distribution of
principal to the Group 2 Senior Certificates, concurrently to the Class 2-A-1A
and Class 2-A-1B Certificates, pro rata based on their respective Class
Certificate Balances, until their respective Class Certificate Balances are
reduced to zero and

      (y) the Group 2 Senior Sequential Allocation Percentage of any
distribution of principal to the Group 2 Senior Certificates in the following
priority:

            first, to the Class 2-A-2 Certificates, until its Class Certificate
Balance is reduced to zero; and

            second, concurrently, to the Class 2-A-3A and Class 2-A-3B
Certificates, pro rata based on their respective class Certificate Balances,
until their respective Class Certificate Balances are reduced to zero.


                                      20
<PAGE>

      Group 2 Senior Principal Distribution Amount: For any Distribution Date,
the product of (x) the Senior Target Amount and (y) a fraction, the numerator
of which is the Group 2 Principal Distribution Target Amount and the
denominator of which is the sum of the Group 1 Principal Distribution Target
Amount and the Group 2 Principal Distribution Target Amount.

      Group 2 Senior Sequential Allocation Percentage: For any Distribution
Date, the percentage equivalent of a fraction, the numerator of which is (x)
the aggregate Class Certificate Balance of the Class 2-A-2, Class 2-A-3A and
Class 2-A-3B Certificates immediately prior to such Distribution Date and the
denominator of which is the aggregate Class Certificate Balance of the Group 2
Senior Certificates immediately prior to such Distribution Date.

      Hard Prepayment Charges: As to a Mortgage Loan, any charge payable by a
Mortgagor in connection with certain partial prepayments and all prepayments in
full made within the related Prepayment Charge Period, the Hard Prepayment
Charges with respect to each applicable Mortgage Loan so held by the Trust Fund
being identified in the Mortgage Loan Schedule.

      Indirect Participant: A broker, dealer, bank, or other financial
institution or other Person that clears through or maintains a custodial
relationship with a Depository Participant.

      Initial Bankruptcy Loss Coverage Amount: Not applicable.

      Initial LIBOR Rate: 5.32% per annum.

      Insurance Policy: For any Mortgage Loan included in the Trust Fund, any
insurance policy, including all riders and endorsements thereto in effect,
including any replacement policy or policies for any Insurance Policies.

      Insurance Proceeds: Proceeds paid by an insurer pursuant to any Insurance
Policy, in each case other than any amount included in such Insurance Proceeds
in respect of Insured Expenses.

      Insured Expenses: Expenses covered by an Insurance Policy or any other
insurance policy with respect to the Mortgage Loans.

      Interest Accrual Period: With respect to each Class of Delay Certificates
and any Distribution Date, the calendar month prior to the month of such
Distribution Date. The Delay Certificates will accrue interest on the basis of
a 360-day year consisting of twelve 30-day months. With respect to each Class
of Non-Delay Certificates and any Distribution Date, the period commencing on
the immediately preceding Distribution Date (or, in the case of the first
Distribution Date, the Closing Date) and ending on the day immediately
preceding that Distribution Date. Each Class of Non-Delay Certificates will
accrue interest on the basis of a 360-day year and the actual number of days
elapsed during the related Interest Accrual Period.

      Interest Carry Forward Amount: With respect to each Class of LIBOR
Certificates and each Distribution Date, is the excess of (a) Current Interest
for that Class with respect to prior Distribution Dates, over (b) the amount
actually distributed to that Class with respect to interest on prior
Distribution Dates.

      Interest Determination Date: With respect to (a) any Interest Accrual
Period for a Class of LIBOR Certificates and (b) any Interest Accrual Period
for the COFI Certificates for which the applicable Index is LIBOR, the second
Business Day prior to the first day of such Interest Accrual Period.


                                      21
<PAGE>

      Interest Funds: For any Distribution Date and Loan Group, the Interest
Remittance Amount for that Loan Group minus the Trustee Fee for that Loan Group
and that Distribution Date.

      Interest Rate: With respect to each REMIC 1 Interest, REMIC 2 Interest or
Master REMIC Interest, the applicable rate set forth or calculated in the
manner described in the Preliminary Statement.

      Interest Remittance Amount: For any Distribution Date and Loan Group:

            (a) the sum, without duplication, of:

                  (1) all interest on the Mortgage Loans in that Loan Group due
             on the related Due Date and received on or prior to the related
            Determination Date, less the Servicing Fees,

                  (2) all interest on Principal Prepayments on the Mortgage
            Loans in that Loan Group, other than Prepayment Interest Excess,

                  (3) all Advances in that Loan Group relating to interest,

                  (4) amounts paid by the Servicer in respect of Compensating
            Interest related to the Mortgage Loans in that Loan Group, and

                  (5) Liquidation Proceeds on the Mortgage Loans in that Loan
            Group received during the related Prepayment Period (to the extent
            such Liquidation Proceeds relate to interest), and

            minus

            (b) all Advances relating to interest and certain expenses
            reimbursed since the prior Due Date.

      Interest Settlement Rate: As defined in Section 4.08.

      Item 1119 Party: The Depositor, the Seller, the Servicer, the Trustee,
the Swap Counterparty, the Swap Trustee. the Corridor Counterparty, the
Supplemental Interest Trustee and any other material transaction party, as
identified in Exhibit T, as updated pursuant to Section 11.04.

      Latest Possible Maturity Date: The Distribution Date following the third
anniversary of the scheduled maturity date of the Mortgage Loan having the
latest scheduled maturity date as of the Cut-off Date.

      Lender PMI Loans: Mortgage Loans with respect to which the lender rather
than the borrower acquired the primary mortgage guaranty insurance and charged
the related borrower an interest premium.

      LIBOR: The London interbank offered rate for one month United States
dollar deposits calculated in the manner described in Section 4.08.

      LIBOR Certificates: As specified in the Preliminary Statement.

      LIBOR Determination Date: For any Interest Accrual Period, the second
London Business Day prior to the commencement of such Interest Accrual Period.


                                      22
<PAGE>

      Limited Exchange Act Reporting Obligations: The obligations of the
Servicer under Section 3.17(b), Section 6.02 and Section 6.04 with respect to
notice and information to be provided to the Depositor and Article 11 (except
Section 11.07(a)(i) and (ii)).

      Liquidated Mortgage Loan: For any Distribution Date, a defaulted Mortgage
Loan (including any REO Property) that was liquidated in the calendar month
preceding the month of the Distribution Date and as to which the Servicer has
certified (in accordance with this Agreement) that it has received all amounts
it expects to receive in connection with the liquidation of the Mortgage Loan,
including the final disposition of an REO Property.

      Liquidation Proceeds: Amounts, including Insurance Proceeds regardless of
when received, received in connection with the partial or complete liquidation
of defaulted Mortgage Loans, whether through trustee's sale, foreclosure sale,
or otherwise or amounts received in connection with any condemnation or partial
release of a Mortgaged Property, and any other proceeds received in connection
with an REO Property, less the sum of related unreimbursed Servicing Fees,
Servicing Advances, and Advances.

      Loan Group: Either of Loan Group 1 or Loan Group 2, as applicable.

      Loan Group 1: All Mortgage Loans identified as Group 1 Mortgage Loans on
the Mortgage Loan Schedule.

      Loan Group 2: All Mortgage Loans identified as Group 2 Mortgage Loans on
the Mortgage Loan Schedule.

      Loan-to-Value Ratio: For any Mortgage Loan and as of any date of
determination, is the fraction whose numerator is the original principal
balance of the related Mortgage Loan at that date of determination and whose
denominator is the Appraised Value of the related Mortgaged Property.

      London Business Day: Any day on which dealings in deposits of United
States dollars are transacted in the London interbank market.

      Lost Mortgage Note: Any Mortgage Note the original of which was
permanently lost or destroyed and has not been replaced.

      Maintenance: For any Cooperative Unit, the rent paid by the Mortgagor to
the Cooperative Corporation pursuant to the Proprietary Lease.

      Maximum Mortgage Rate: For each Mortgage Loan, the percentage set forth
in the related Mortgage Note as the lifetime maximum Mortgage Rate to which
such Mortgage Rate may be adjusted.

      MERS: Mortgage Electronic Registration Systems, Inc., a corporation
organized and existing under the laws of the State of Delaware, or any
successor thereto.

      MERS Mortgage Loan: Any Mortgage Loan registered with MERS on the MERS(R)
System.

      MERS(R) System: The system of recording transfers of mortgages
electronically maintained by MERS.

      MIN: The mortgage identification number for any MERS Mortgage Loan.


                                      23
<PAGE>

      Minimum Mortgage Rate: For each Mortgage Loan, the percentage set forth
in the related Mortgage Note as the lifetime minimum Mortgage Rate to which
such Mortgage Rate may be adjusted.

      MOM Loan: Any Mortgage Loan as to which MERS is acting as mortgagee,
solely as nominee for the originator of such Mortgage Loan and its successors
and assigns.

      Moneyline Telerate Page 3750: The display page currently so designated on
the Moneyline Telerate Information Services, Inc. (or any page replacing that
page on that service for the purpose of displaying London inter-bank offered
rates of major banks).

      Monthly Statement: The statement delivered to the Certificateholders
pursuant to Section 4.06.

      Moody's: Moody's Investors Service, Inc., or any successor thereto. If
Moody's is designated as a Rating Agency in the Preliminary Statement, for
purposes of Section 10.05(b) the address for notices to Moody's shall be
Moody's Investors Service, Inc., 99 Church Street, New York, New York 10007,
Attention: Residential Loan Monitoring Group, or any other address that Moody's
furnishes to the Depositor and the Servicer.

      Mortgage: The mortgage, deed of trust, or other instrument creating a
first lien on an estate in fee simple or leasehold interest in real property
securing a Mortgage Note.

      Mortgage File: The mortgage documents listed in Section 2.01 pertaining
to a particular Mortgage Loan and any additional documents delivered to the
Trustee to be added to the Mortgage File pursuant to this Agreement.

      Mortgage Index: One-Year CMT Index, Six-Month LIBOR Index or One-Year
LIBOR Index.

      Mortgage Loans: Such of the mortgage loans transferred and assigned to
the Trustee pursuant to this Agreement, as from time to time are held as a part
of the Trust Fund (including any REO Property), the Mortgage Loans so held
being identified on the Mortgage Loan Schedule, notwithstanding foreclosure or
other acquisition of title of the related Mortgaged Property.

      Mortgage Loan Schedule: As of any date, the list set forth in Schedule I
of Mortgage Loans included in the Trust Fund on that date. The Mortgage Loan
Schedule shall be prepared by the Seller and shall set forth the following
information with respect to each Mortgage Loan by Loan Group:

            (i)    the loan number;

            (ii)   the street address of the Mortgaged Property, including the
                  zip code;

            (iii) the maturity date;

            (iv)   the original principal balance;

            (v)    the Cut-off Date Principal Balance;

            (vi)   the first payment date of the Mortgage Loan;

            (vii) the Scheduled Payment in effect as of the Cut-off Date;

             (viii) the Gross Margin in effect as of the Cut-off Date;


                                      24
<PAGE>

            (ix)   the Maximum Mortgage Rate in effect as of the Cut-off Date;

            (x)    the Adjustment Date in effect as of the Cut-off Date;

            (xi)   a code indicating the Mortgage Index and when it is
                  determined;

            (xii) the Loan-to-Value Ratio at origination;

            (xiii) a code indicating whether the residential dwelling at the
                   time of origination was represented to be owner-occupied;

            (xiv) a code indicating whether the residential dwelling is either
                  (a) a detached single family dwelling, (b) a dwelling in a
                  PUD, (c) a condominium unit, (d) a two- to four-unit
                  residential property, or (e) a Cooperative Unit;

            (xv)   the Mortgage Rate in effect as of the Cut-off Date;

            (xvi) the purpose for the Mortgage Loan;

            (xvii) the type of documentation program pursuant to which the
                  Mortgage Loan was originated;

            (xviii) a code indicating whether the Mortgage Loan is a
                  borrower-paid mortgage insurance loan;

            (xix) the Servicing Fee Rate;

            (xx)   a code indicating whether the Mortgage Loan is a Lender PMI
                  Loan;

            (xxi) the coverage amount of any mortgage insurance;

            (xxii) with respect to the Lender PMI Loans, the interest premium
                  charged by the lender;

            (xxiii) a code indicating whether the Mortgage Loan is a Delay
                  Delivery Mortgage Loan;

            (xxiv) the Minimum Mortgage Rate in effect as of the Cut-off Date;

            (xxv) a code indicating whether the Mortgage Loan is a MERS
                  Mortgage Loan; and

            (xxvi) the type of Prepayment Charges and the length of time during
                  which Prepayment Charges will be imposed on a Mortgage Loan.

      The schedule shall also set forth the total of the amounts described
under (v) above for all of the Mortgage Loans and for each Loan Group.

      Mortgage Note: The original executed note or other evidence of the
indebtedness of a Mortgagor under a Mortgage Loan.

      Mortgage Rate: The annual rate of interest borne by a Mortgage Note from
time to time (net of the interest premium for any Lender PMI Loan).


                                      25
<PAGE>

      Mortgaged Property: The underlying property securing a Mortgage Loan,
which, with respect to a Cooperative Loan, is the related Co-op Shares and
Proprietary Lease.

      Mortgagor: The obligors on a Mortgage Note.

      National Cost of Funds Index: The National Monthly Median Cost of Funds
Ratio to SAIF-Insured Institutions published by the OTS.

      Net Prepayment Interest Shortfall: As to any Distribution Date and Loan
Group, the amount, if any, by which the aggregate of Prepayment Interest
Shortfalls for such Loan Group exceeds an amount equal to the sum of (a) the
Compensating Interest allocable to such Loan Group for such Distribution Date
and (b) the excess, if any, of the Compensating Interest allocable to the other
Loan Group for such Distribution Date over the Prepayment Interest Shortfalls
for such other Loan Group and Distribution Date.

      Net Rate Cap: For each Distribution Date and Classes of LIBOR
Certificates, the excess of:

            o      the Weighted Average Adjusted Net Mortgage Rate of the
                  Mortgage Loans for that Distribution Date, adjusted to an
                  effective rate reflecting the accrual of interest on the
                  basis of a 360-day year and the actual number of days that
                  elapsed in the related Interest Accrual Period,

            minus

            the Swap Adjustment Rate for such Distribution Date and the related
            Loan Group.

      Net Rate Carryover: For a Class of LIBOR Certificates on any Distribution
Date, the excess of:

            (1) the amount of interest that Class would have accrued for that
      Distribution Date had the Pass-Through Rate for that Class and the
      related Interest Accrual Period not been calculated based on the lesser
      of Net Rate Cap and 10.5% per annum, over

            (2) the amount of interest that Class accrued on that Distribution
      Date based on the Net Rate Cap,


plus the unpaid portion of any excess from prior Distribution Dates (and
interest accrued thereon at the then applicable Pass-Through Rate, without
giving effect to the Net Rate Cap or the maximum rate of 10.5% per annum).

      Net Swap Payment: With respect to the Swap Contract, any Distribution
Date and payment from the Swap Trust to the Swap Counterparty, the excess, if
any, of the "Fixed Amounts" (as defined in the Swap Contract) with respect to
such Distribution Date over the "Floating Amounts" (as defined in the Swap
Contract) with respect to such Distribution Date. With respect to the Swap
Contract, any Distribution Date and payment by the Swap Counterparty to the
Swap Trust, the excess, if any, of the "Floating Amounts" with respect to such
Distribution Date over the "Fixed Amounts" with respect to such Distribution
Date.

      Non-Delay Certificates: As specified in the Preliminary Statement.


                                      26
<PAGE>

      Nonrecoverable Advance: Any portion of an Advance previously made or
proposed to be made by the Servicer, that, in the good faith judgment of the
Servicer, will not be ultimately recoverable by the Servicer from the related
Mortgagor, related Liquidation Proceeds or otherwise.

      Notice of Final Distribution: The notice to be provided pursuant to
Section 9.02 to the effect that final distribution on any of the Certificates
shall be made only upon presentation and surrender thereof.

      Notional Amount: Not applicable.

      Notional Amount Certificates: As specified in the Preliminary Statement.

      Notional Amount Components: As specified in the Preliminary Statement.

      OC Floor: An amount equal to 0.40% of the Cut-off Date Pool Principal
Balance.

      Offered Certificates: As specified in the Preliminary Statement.

      Officer's Certificate: A certificate (i) signed by the Chairman of the
Board, the Vice Chairman of the Board, the President, a Managing Director, a
Vice President (however denominated), an Assistant Vice President, the
Treasurer, the Secretary, or one of the Assistant Treasurers or Assistant
Secretaries of the Depositor or the Servicer, or (ii) if provided for in this
Agreement, signed by a Servicing Officer, as the case may be, and delivered to
the Depositor and the Trustee as required by this Agreement or (iii) in the
case of any other Person, signed by an authorized officer of such Person.

       One-Year CMT Index: The weekly average yield on United States Treasury
securities adjusted to a constant maturity of one year as published by the
Federal Reserve Board in Statistical Release H.15(519) and most recently
available as of a day specified in the related Mortgage Note.

      One-Year LIBOR Index: The average of the London interbank offered rates
for one-year U.S. dollar deposits in the London market, generally as set forth
in either The Wall Street Journal or some other source generally accepted in
the residential mortgage loan origination business and specified in the related
Mortgage Note, or, if such rate ceases to be published in The Wall Street
Journal or becomes unavailable for any reason, then based upon a new index
selected by the servicer, based on comparable information, in each case, as
most recently announced as of either 45 days prior to, or the first Business
Day of the month immediately preceding the month of, such Adjustment Date.

      Opinion of Counsel: For the interpretation or application of the REMIC
Provisions, a written opinion of counsel who (i) is in fact independent of the
Depositor and the Servicer, (ii) does not have any direct financial interest in
the Depositor or the Servicer or in any affiliate of either, and (iii) is not
connected with the Depositor or the Servicer as an officer, employee, promoter,
underwriter, trustee, partner, director, or person performing similar
functions. Otherwise, a written opinion of counsel who may be counsel for the
Depositor or the Servicer, including in-house counsel, reasonably acceptable to
the Trustee.

      Optional Termination Date: As defined in Section 9.01.

      Original Mortgage Loan: The Mortgage Loan refinanced in connection with
the origination of a Refinance Loan.

       OTS: The Office of Thrift Supervision.


                                      27
<PAGE>

      Outside Reference Date: Not applicable.

      Outstanding: For the Certificates as of any date of determination, all
Certificates theretofore executed and authenticated under this Agreement
except:

            (i)    Certificates theretofore canceled by the Trustee or delivered
                  to the Trustee for cancellation; and

            (ii)   Certificates in exchange for which or in lieu of which other
                  Certificates have been executed and delivered by the Trustee
                  pursuant to this Agreement.

      Outstanding Mortgage Loan: As of any Due Date, a Mortgage Loan with a
Stated Principal Balance greater than zero that was not the subject of a
Principal Prepayment in Full before the Due Date or during the related
Prepayment Period and that did not become a Liquidated Mortgage Loan before the
Due Date.

      Overcollateralization Deficiency Amount: For any Distribution Date equals
the amount, if any, by which the Overcollateralization Target Amount exceeds
the Overcollateralized Amount on that Distribution Date (after giving effect to
distributions of the Principal Remittance Amount for each Loan Group on that
Distribution Date).

      Overcollateralization Target Amount: With respect to any Distribution
Date, the OC Floor.

      Overcollateralized Amount: For any Distribution Date is the amount, if
any, by which (x) the Pool Principal Balance as of the Due Date in the month of
that Distribution Date (after giving effect to Principal Prepayments, the
principal portion of any Liquidation Proceeds and any Subsequent Recoveries
received in the related Prepayment Period) exceeds (y) the aggregate Class
Certificate Balance of the Offered Certificates (after giving effect to
distributions of the Principal Distribution Amount (excluding the Extra
Principal Distribution Amount) on that Distribution Date).

      Ownership Interest: As to any Residual Certificate, any ownership
interest in the Certificate including any interest in the Certificate as its
Holder and any other interest therein, whether direct or indirect, legal or
beneficial.

      Pass-Through Margin: With respect to the Interest Accrual Period for any
Distribution Date and Class of LIBOR Certificates, the per annum rate indicated
in the following table:

Class of LIBOR Certificates                         Pass-Through Margin
---------------------------                         -------------------
                                                    (1)              (2)
                                                 --------         --------
Class 1-A-1A................................       0.180%           0.360%
Class 1-A-1B................................       0.230%            0.460%
Class 2-A-1A................................       0.170%           0.340%
Class 2-A-1B................................       0.230%           0.460%
Class 2-A-2.................................       0.100%           0.200%
Class 2-A-3A................................       0.200%           0.400%
Class 2-A-3B................................       0.230%           0.460%
Class M-1...................................       0.300%           0.450%
Class M-2...................................       0.320%            0.480%
Class M-3...................................       0.340%           0.510%
Class M-4...................................       0.410%           0.615%
Class M-5...................................       0.500%           0.750%
Class M-6...................................       0.950%           1.425%
Class M-7...................................       1.500%           2.250%


                                      28
<PAGE>

-----------------------
(1)    For the Interest Accrual Period related to any Distribution Date
      occurring on or prior to the first possible Optional Termination Date.

(2)    For the Interest Accrual Period related to any Distribution Date
      occurring after the first possible Optional Termination Date.

      Pass-Through Rate: For each Class of Certificates, the per annum rate set
forth or calculated in the manner described in the Preliminary Statement.

      Percentage Interest: As to any Certificate, the percentage interest
evidenced thereby in distributions required to be made on the related Class,
the percentage interest being set forth on its face or equal to the percentage
obtained by dividing the Denomination of the Certificate by the aggregate of
the Denominations of all Certificates of the same Class. With respect to the
Class C, Class P and Class A-R Certificates, the portion of the Class evidenced
thereby, expressed as a percentage, as stated on the face of such Certificate.

      Performance Certification: As defined in Section 11.05.

      Permitted Investments: At any time, any of the following:

      (i) obligations of the United States or any agency thereof backed by the
full faith and credit of the United States;

      (ii) general obligations of or obligations guaranteed by any state of the
United States or the District of Columbia receiving the highest long-term debt
rating of each Rating Agency, or any lower rating that will not result in the
downgrading, qualification or withdrawal of the ratings then assigned to the
Certificates by the Rating Agencies, as evidenced by a signed writing delivered
by each Rating Agency;

      (iii) commercial or finance company paper that is then receiving the
highest commercial or finance company paper rating of each Rating Agency, or
any lower rating that will not result in the downgrading, qualification or
withdrawal of the ratings then assigned to the Certificates by the Rating
Agencies , as evidenced by a signed writing delivered by each Rating Agency;

      (iv) certificates of deposit, demand or time deposits, or bankers'
acceptances issued by any depository institution or trust company incorporated
under the laws of the United States or of any state thereof and subject to
supervision and examination by federal or state banking authorities, provided
that the commercial paper or long-term unsecured debt obligations of the
depository institution or trust company (or in the case of the principal
depository institution in a holding company system, the commercial paper or
long-term unsecured debt obligations of the holding company, but only if
Moody's is not a Rating Agency) are then rated one of the two highest long-term
and the highest short-term ratings of each Rating Agency for the securities, or
any lower rating that will not result in the downgrading, qualification or
withdrawal of the ratings then assigned to the Certificates by the Rating
Agencies, as evidenced by a signed writing delivered by each Rating Agency;

      (v) demand or time deposits or certificates of deposit issued by any bank
or trust company or savings institution to the extent that the deposits are
fully insured by the FDIC;


                                      29
<PAGE>

      (vi) guaranteed reinvestment agreements issued by any bank, insurance
company, or other corporation acceptable to the Rating Agencies at the time of
the issuance of the agreements, as evidenced by a signed writing delivered by
each Rating Agency;

      (vii) repurchase obligations with respect to any security described in
clauses (i) and (ii) above, in either case entered into with a depository
institution or trust company (acting as principal) described in clause (iv)
above; provided that such repurchase obligation would be accounted for as a
financing arrangement under generally accepted accounting principles;

      (viii) securities (other than stripped bonds, stripped coupons, or
instruments sold at a purchase price in excess of 115% of their face amount)
bearing interest or sold at a discount issued by any corporation incorporated
under the laws of the United States or any state thereof that, at the time of
the investment, have one of the two highest ratings of each Rating Agency
(except if the Rating Agency is Moody's the rating shall be the highest
commercial paper rating of Moody's for the securities), or any lower rating
that will not result in the downgrading, qualification or withdrawal of the
ratings then assigned to the Certificates by the Rating Agencies, as evidenced
by a signed writing delivered by each Rating Agency and that have a maturity
date occurring no more than 365 days from their date of issuance;

      (ix) units of a taxable money-market portfolio having the highest rating
assigned by each Rating Agency (except (i) if Fitch is a Rating Agency and has
not rated the portfolio, the highest rating assigned by Moody's and (ii) if S&P
is a Rating Agency, "AAAm" or "AAAM-G" by S&P) and restricted to obligations
issued or guaranteed by the United States of America or entities whose
obligations are backed by the full faith and credit of the United States of
America and repurchase agreements collateralized by such obligations; and

      (x) any other investments bearing interest or sold at a discount
acceptable to each Rating Agency that will not result in the downgrading,
qualification or withdrawal of the ratings then assigned to the Certificates by
the Rating Agencies, as evidenced by a signed writing delivered by each Rating
Agency.

      No Permitted Investment may (i) evidence the right to receive
interest-only payments with respect to the obligations underlying the
instrument, (ii) be sold or disposed of before its maturity or (iii) be any
obligation of the Seller or any of its Affiliates. Any Permitted Investment
shall be relatively risk free and no options or voting rights shall be
exercised with respect to any Permitted Investment. Any Permitted Investment
shall be sold or disposed in accordance with Financial Accounting Standard 140,
paragraph 35c(6) in effect as of the Closing Date.

      Permitted Transferee: Any person other than

      (i) the United States, any State or political subdivision thereof, or any
agency or instrumentality of any of the foregoing,

      (ii) a foreign government, International Organization, or any agency or
instrumentality of either of the foregoing,

      (iii) an organization (except certain farmers' cooperatives described in
section 521 of the Code) that is exempt from tax imposed by Chapter 1 of the
Code (including the tax imposed by section 511 of the Code on unrelated
business taxable income) on any excess inclusions (as defined in section
860E(c)(1) of the Code) with respect to any Residual Certificate,


                                      30
<PAGE>

      (iv) a rural electric and telephone cooperatives described in section
1381(a)(2)(C) of the Code,

      (v) an "electing large partnership" as defined in section 775 of the
Code,

      (vi) a Person that is not a U.S. Person, and

      (vii) any other Person so designated by the Depositor based on an Opinion
of Counsel that the Transfer of an Ownership Interest in a Residual Certificate
to the Person may cause any REMIC to fail to qualify as a REMIC at any time
that the Certificates are outstanding.

      Person: Any individual, corporation, partnership, joint venture,
association, limited liability company, joint-stock company, trust,
unincorporated organization, or government, or any agency or political
subdivision thereof.

      Physical Certificates: As specified in the Preliminary Statement.

      Plan: An "employee benefit plan" as defined in section 3(3) of ERISA that
is subject to Title I of ERISA, a "plan" as defined in section 4975 of the Code
that is subject to section 4975 of the Code, or any Person investing on behalf
of or with plan assets (as defined in 29 CFR ss.2510.3-101 or otherwise under
ERISA) of such an employee benefit plan or plan.

      Planned Balance: Not applicable.

      Planned Principal Classes: As specified in the Preliminary Statement.

      Pool Principal Balance: The aggregate Stated Principal Balances of the
Mortgage Loans.

       Prepayment Charge: A Hard Prepayment Charge or Soft Prepayment Charge, as
the context may require.

      Prepayment Charge Period: As to any Mortgage Loan, the period of time
during which a Prepayment Charge may be imposed.

      Prepayment Interest Excess: As to any Principal Prepayment received by
the Servicer on a Mortgage Loan from the first day through the fifteenth day of
any calendar month other than the month of the Cut-off Date, all amounts paid
by the related Mortgagor in respect of interest on such Principal Prepayment.
All Prepayment Interest Excess shall be retained by the Servicer as additional
servicing compensation.

      Prepayment Interest Shortfall: As to any Distribution Date, Mortgage Loan
and Principal Prepayment received on or after the sixteenth day of the month
preceding the month of such Distribution Date (or, in the case of the first
Distribution Date, on or after the Cut-off Date) and on or before the last day
of the month preceding the month of such Distribution Date, the amount, if any,
by which one month's interest at the related Mortgage Rate, net of the
Servicing Fee Rate, on such Principal Prepayment exceeds the amount of interest
paid in connection with such Principal Prepayment.

      Prepayment Period: As to any Distribution Date and related Due Date, the
period from and including the 16th day of the month immediately prior to the
month of such Distribution Date (or, in the case of the first Distribution
Date, from the Cut-off Date) and to and including the 15th day of the month of
such Distribution Date.


                                      31
<PAGE>

      Prepayment Shift Percentage: Not applicable.

      Primary Insurance Policy: Each policy of primary mortgage guaranty
insurance or any replacement policy therefor with respect to any Mortgage Loan.

      Principal Balance Schedules: Not applicable.

      Principal Distribution Amount: With respect to each Distribution Date and
Loan Group, an amount equal to (A) the sum of (1) the Principal Remittance
Amount for that Distribution Date and Loan Group, less any portion of such
amount used to cover any payment due to the Swap Counterparty under the Swap
Contract with respect to that Distribution Date and (2) the Extra Principal
Distribution Amount for that Distribution Date and Loan Group.

      Principal Only Certificates: As specified in the Preliminary Statement.

      Principal Prepayment: Any payment of principal by a Mortgagor on a
Mortgage Loan (including the principal portion of the Purchase Price of any
Mortgage Loan purchased pursuant to Section 3.12) that is received in advance
of its scheduled Due Date and is not accompanied by an amount representing
scheduled interest due on any date in any month after the month of prepayment.
The Servicer shall apply partial Principal Prepayments in accordance with the
related Mortgage Note.

      Principal Prepayment in Full: Any Principal Prepayment made by a
Mortgagor of the entire principal balance of a Mortgage Loan.

      Principal Remittance Amount: For any Distribution Date and either Loan
Group, an amount equal to:

            (a)    the sum, without duplication, of:

                  (1) all principal collected or advanced on the Mortgage Loans
            in that Loan Group with respect to the related Due Date,

                  (2) Principal Prepayments on the Mortgage Loans in that Loan
            Group collected during the related Prepayment Period,

                  (3) the Stated Principal Balance of each Mortgage Loan in
            that Loan Group that was repurchased by the Seller or purchased by
            the Servicer with respect to that Distribution Date (other than
            Mortgage Loans repurchased due to a modification of the Mortgage
            Loan),

                  (4) any Substitution Adjustment Amounts in respect of the
            Mortgage Loans in that Loan Group, and

                  (5) all liquidation proceeds (to the extent such liquidation
            proceeds related to principal) in respect of the Mortgage Loans in
            that Loan Group and all Subsequent Recoveries received during the
            related Prepayment Period in respect of the Mortgage Loans in that
            Loan Group


                                      32
<PAGE>

                  minus

            (b) all non-recoverable Advances relating to principal on the
      Mortgage Loans in that Loan Group and certain expenses reimbursed since
      the prior Due Date.

      Private Certificates: As specified in the Preliminary Statement.

Proprietary Lease: For any Cooperative Unit, a lease or occupancy agreement
between a Cooperative Corporation and a holder of related Co-op Shares.

      Prospectus Supplement: The Prospectus Supplement dated November 29, 2006,
relating to the Offered Certificates, and any supplement to the Prospectus
Supplement.

      PUD: Planned Unit Development.

      Purchase Price: For any Mortgage Loan required to be purchased by the
Seller pursuant to Section 2.02 or 2.03 or purchased by the Servicer pursuant
to Section 3.12, the sum of

      (i) 100% of the unpaid principal balance of the Mortgage Loan on the date
of the purchase,

      (ii) accrued and unpaid interest on the Mortgage Loan at the applicable
Mortgage Rate (or at the applicable Adjusted Mortgage Rate if (x) the purchaser
is the Servicer or (y) if the purchaser is the Seller and the Seller is the
Servicer) from the date through which interest was last paid by the Mortgagor
to the Due Date in the month in which the Purchase Price is to be distributed
to Certificateholders, net of any unreimbursed Advances made by the Servicer on
the Mortgage Loan, and

      (iii) any costs and damages incurred by the Trust Fund in connection with
any violation by the Mortgage Loan of any predatory or abusive lending law.

      If the Mortgage Loan is purchased pursuant to Section 3.12, the interest
component of the Purchase Price shall be computed (i) on the basis of the
applicable Adjusted Mortgage Rate before giving effect to the related
modification and (ii) from the date to which interest was last paid to the date
on which the Mortgage Loan is assigned to the Servicer pursuant to Section
3.12.

      Qualified Insurer: A mortgage guaranty insurance company duly qualified
as such under the laws of the state of its principal place of business and each
state having jurisdiction over the insurer in connection with the insurance
policy issued by the insurer, duly authorized and licensed in such states to
transact a mortgage guaranty insurance business in such states and to write the
insurance provided by the insurance policy issued by it, approved as a FNMA- or
FHLMC-approved mortgage insurer or having a claims paying ability rating of at
least "AA" or equivalent rating by a nationally recognized statistical rating
organization. Any replacement insurer with respect to a Mortgage Loan must have
at least as high a claims paying ability rating as the insurer it replaces had
on the Closing Date.

      Rating Agency: Each of the Rating Agencies specified in the Preliminary
Statement. If any of them or a successor is no longer in existence, "Rating
Agency" shall be the nationally recognized statistical rating organization, or
other comparable Person, designated by the Depositor, notice of which
designation shall be given to the Trustee. References to a given rating or
rating category of a Rating Agency means the rating category without giving
effect to any modifiers.

      Realized Loss: With respect to each Liquidated Mortgage Loan, an amount
(not less than zero or more than the Stated Principal Balance of the Mortgage
Loan) as of the date of such liquidation, equal to


                                      33
<PAGE>

(i) the Stated Principal Balance of the Liquidated Mortgage Loan as of the date
of such liquidation, plus (ii) interest at the Adjusted Net Mortgage Rate from
the Due Date as to which interest was last paid or advanced (and not
reimbursed) to Certificateholders up to the Due Date in the month in which
Liquidation Proceeds are required to be distributed on the Stated Principal
Balance of such Liquidated Mortgage Loan from time to time, minus (iii) the
Liquidation Proceeds, if any, received during the month in which such
liquidation occurred, to the extent applied as recoveries of interest at the
Adjusted Net Mortgage Rate and to principal of the Liquidated Mortgage Loan.
With respect to each Mortgage Loan that has become the subject of a Deficient
Valuation, if the principal amount due under the related Mortgage Note has been
reduced, the difference between the principal balance of the Mortgage Loan
outstanding immediately prior to such Deficient Valuation and the principal
balance of the Mortgage Loan as reduced by the Deficient Valuation. With
respect to each Mortgage Loan which has become the subject of a Debt Service
Reduction and any Distribution Date, the amount, if any, by which the principal
portion of the related Scheduled Payment has been reduced. To the extent the
Servicer receives Subsequent Recoveries with respect to any Mortgage Loan, the
amount of the Realized Loss with respect to that Mortgage Loan will be reduced
by such Subsequent Recoveries.

      Recognition Agreement: For any Cooperative Loan, an agreement between the
Cooperative Corporation and the originator of the Mortgage Loan that
establishes the rights of the originator in the Cooperative Property.

      Record Date: With respect to any Distribution Date and any Definitive
Certificate and the Delay Certificates, the close of business on the last
Business Day of the month preceding the month of that Distribution Date. With
respect to any Distribution Date and the LIBOR Certificates as long as they are
Book-Entry Certificates, the Business Day immediately prior to such
Distribution Date.

      Reference Bank: As defined in Section 4.08.

      Refinance Loan: Any Mortgage Loan the proceeds of which are used to
refinance an Original Mortgage Loan.

      Regular Certificates: As specified in the Preliminary Statement.

      Regulation AB: Subpart 229.1100 - Asset Backed Securities (Regulation
AB), 17 C.F.R. ss.ss.229.1100-229.1123, as such may be amended from time to
time, and subject to such clarification and interpretation as have been
provided by the Commission in the adopting release (Asset-Backed Securities,
Securities Act Release No. 33-8518, 70 Fed. Reg. 1,506, 1,531 (Jan. 7, 2005))
or by the staff of the Commission, or as may be provided by the Commission or
its staff from time to time.

      Relief Act: The Servicemembers Civil Relief Act.

      REMIC: A "real estate mortgage investment conduit" within the meaning of
section 860D of the Code.

      REMIC Provisions: Provisions of the federal income tax law relating to
real estate mortgage investment conduits, which appear at sections 860A through
860G of Subchapter M of Chapter 1 of the Code, and related provisions, and
regulations promulgated thereunder, as the foregoing may be in effect from time
to time as well as provisions of applicable state laws.

      REO Property: A Mortgaged Property acquired by the Trust Fund through
foreclosure or deed-in-lieu of foreclosure in connection with a defaulted
Mortgage Loan.


                                      34
<PAGE>

      Reportable Event: Any event required to be reported on Form 8-K, and in
any event, the following:

      (a) entry into a definitive agreement related to the Trust Fund, the
Certificates or the Mortgage Loans, or an amendment to a Transaction Document,
even if the Depositor is not a party to such agreement (e.g., a servicing
agreement with a servicer contemplated by Item 1108(a)(3) of Regulation AB);

      (b) termination of a Transaction Document (other than by expiration of
the agreement on its stated termination date or as a result of all parties
completing their obligations under such agreement), even if the Depositor is
not a party to such agreement (e.g., a servicing agreement with a servicer
contemplated by Item 1108(a)(3) of Regulation AB);

      (c) with respect to the Servicer only, if the Servicer becomes aware of
any bankruptcy or receivership with respect to the Seller, the Depositor, the
Servicer, the Trustee, the Swap Trustee, the Supplemental Interest Trustee, the
Corridor Counterparty, the Swap Counterparty, any enhancement or support
provider contemplated by Items 1114(b) or 1115 of Regulation AB, or any other
material party contemplated by Item 1101(d)(1) of Regulation AB;

      (d) with respect to the Trustee, the Servicer and the Depositor only, the
occurrence of an early amortization, performance trigger or other event,
including an Event of Default under this Agreement;

      (e) any amendment to this Agreement;

      (f) the resignation, removal, replacement, substitution of the Servicer
or the Trustee;

      (g) with respect to the Servicer only, if the Servicer becomes aware that
(i) any material enhancement or support specified in Item 1114(a)(1) through
(3) of Regulation AB or Item 1115 of Regulation AB that was previously
applicable regarding one or more Classes of the Certificates has terminated
other than by expiration of the contract on its stated termination date or as a
result of all parties completing their obligations under such agreement; (ii)
any material enhancement specified in Item 1114(a)(1) through (3) of Regulation
AB or Item 1115 of Regulation AB has been added with respect to one or more
Classes of the Certificates; or (iii) any existing material enhancement or
support specified in Item 1114(a)(1) through (3) of Regulation AB or Item 1115
of Regulation AB with respect to one or more Classes of the Certificates has
been materially amended or modified; and

      (h) with respect to the Trustee, the Servicer and the Depositor only, a
required distribution to Holders of the Certificates is not made as of the
required Distribution Date under this Agreement.

      Reporting Subcontractor: With respect to the Servicer or the Trustee, any
Subcontractor determined by such Person pursuant to Section 11.08(b) to be
"participating in the servicing function" within the meaning of Item 1122 of
Regulation AB. References to a Reporting Subcontractor shall refer only to the
Subcontractor of such Person and shall not refer to Subcontractors generally.

      Request for Release: The Request for Release submitted by the Servicer to
the Trustee, substantially in the form of Exhibits M and N, as appropriate.

      Required Insurance Policy: For any Mortgage Loan, any insurance policy
that is required to be maintained from time to time under this Agreement.


                                      35
<PAGE>

      Residual Certificates: As specified in the Preliminary Statement.

      Responsible Officer: When used with respect to the Trustee, any Managing
Director, any Director, Vice President, any Assistant Vice President, any
Associate, any Assistant Secretary, any Trust Officer, or any other officer of
the Trustee customarily performing functions similar to those performed by any
of the above designated officers who at such time shall be officers to whom,
with respect to a particular matter, the matter is referred because of the
officer's knowledge of and familiarity with the particular subject and who has
direct responsibility for the administration of this Agreement.

      Restricted Classes: As defined in Section 4.02(e).

      Rolling Sixty Day Delinquency Rate: With respect to any Distribution
Date, an amount equal to the average of the Sixty Day Delinquency Rates for
each that Distribution Date and the two immediately preceding Distribution
Dates.

      SAIF: The Savings Association Insurance Fund, or any successor thereto.

      Sarbanes-Oxley Certification: As defined in Section 11.05.

      S&P: Standard & Poor's, a division of The McGraw-Hill Companies, Inc. If
S&P is designated as a Rating Agency in the Preliminary Statement, for purposes
of Section 10.05(b) the address for notices to S&P shall be Standard & Poor's,
a division of The McGraw-Hill Companies, Inc., 55 Water Street, New York, New
York 10041, Attention: Mortgage Surveillance Monitoring, or any other address
that S&P furnishes to the Depositor and the Servicer.

      Scheduled Balance: Not applicable.

      Scheduled Classes: As specified in the Preliminary Statement.

      Scheduled Payment: The scheduled monthly payment on a Mortgage Loan due
on any Due Date allocable to principal and/or interest on such Mortgage Loan
which, unless otherwise specified herein, shall give effect to any related Debt
Service Reduction and any Deficient Valuation that affects the amount of the
monthly payment due on such Mortgage Loan.

      Securities Act: The Securities Act of 1933, as amended.

      Security Agreement: For any Cooperative Loan, the agreement between the
owner of the related Co-op Shares and the originator of the related Mortgage
Note that defines the security interest in the Co-op Shares and the related
Proprietary Lease.

       Seller: IndyMac Bank, F.S.B., a federal savings bank, and its successors
and assigns, in its capacity as seller of the Mortgage Loans to the Depositor.

      Senior Certificate Group: As specified in the Preliminary Statement.

      Senior Certificates: As specified in the Preliminary Statement.

      Senior Credit Support Depletion Date: The point in time at which the
aggregate Class Certificate Balance of the Subordinated Certificates and the
Class C Certificates equals zero.


                                       36
<PAGE>

      Senior Enhancement Percentage: With respect to a Distribution Date on or
after the Stepdown Date a fraction (expressed as a percentage):

            (1) the numerator of which is sum of the aggregate Class
      Certificate Balance of the Subordinated Certificates and the
      Overcollateralized Amount (which, for purposes of this definition only,
      shall not be less than zero) and

            (2) the denominator of which is the Pool Principal Balance as of
      the Due Date in the prior month (after giving effect to Principal
      Prepayments in the Prepayment Period related to that prior Due Date).

      Senior Principal Distribution Amount: For any Distribution Date, an
amount equal to the amount, if any, by which (x) the aggregate Class
Certificate Balance of the Senior Certificates immediately prior to that
Distribution Date exceeds (y) the Senior Target Amount.

      Senior Target Amount: For any Distribution Date, (x) after the Stepdown
Date and if a Trigger Event is not in effect, an amount equal to the lesser of
(a) the product of (1) 86.10% and (2) the Pool Principal Balance as of the Due
Date in the month of that Distribution Date (after giving effect to Principal
Prepayments received in the related Prepayment Period) and (b) the amount, if
any, by which (1) the Pool Principal Balance as of the Due Date in the month of
that Distribution Date (after giving effect to Principal Prepayments received
in the related Prepayment Period) exceeds (2) the OC Floor, and (y) for any
Distribution Date after the Stepdown Date on which a Trigger Event is in
effect, the Senior Target Amount for the immediately preceding Distribution
Date.

      Servicer: IndyMac Bank, F.S.B., a federal savings bank, and its
successors and assigns, in its capacity as servicer under this Agreement.

      Servicer Advance Date: As to any Distribution Date, 12:30 P.M. Pacific
time on the Business Day preceding the Distribution Date.

      Servicing Advances: All customary, reasonable, and necessary "out of
pocket" costs and expenses incurred in the performance by the Servicer of its
servicing obligations, including the cost of

            (a) the preservation, restoration, and protection of a Mortgaged
      Property,

            (b) expenses reimbursable to the Servicer pursuant to Section 3.12
      and any enforcement or judicial proceedings, including foreclosures,

            (c) the maintenance and liquidation of any REO Property,

            (d) compliance with the obligations under Section 3.10, and

            (e) reasonable compensation to the Servicer or its affiliates for
      acting as broker in connection with the sale of foreclosed Mortgaged
      Properties and for performing certain default management and other
      similar services (including appraisal services) in connection with the
      servicing of defaulted Mortgage Loans. For purposes of this clause (e),
      only costs and expenses incurred in connection with the performance of
      activities generally considered to be outside the scope of customary
      servicing or master servicing duties shall be treated as Servicing
      Advances.

      Servicing Criteria: The "servicing criteria" set forth in Item 1122(d) of
Regulation AB.


                                       37
<PAGE>

      Servicing Fee: As to each Mortgage Loan and any Distribution Date, one
month's interest at the applicable Servicing Fee Rate on the Stated Principal
Balance of the Mortgage Loan, or, whenever a payment of interest accompanies a
Principal Prepayment in Full made by the Mortgagor, interest at the Servicing
Fee Rate on the Stated Principal Balance of the Mortgage Loan for the period
covered by the payment of interest, subject to reduction as provided in Section
3.15.

      Servicing Fee Rate: For each Mortgage Loan, 0.375% per annum.

      Servicing Officer: Any officer of the Servicer involved in, or
responsible for, the administration and servicing of the Mortgage Loans whose
name and facsimile signature appear on a list of servicing officers furnished
to the Trustee by the Servicer on the Closing Date pursuant to this Agreement,
as the list may from time to time be amended.

      Servicing Standard: That degree of skill and care exercised by the
Servicer with respect to mortgage loans comparable to the Mortgage Loans
serviced by the Servicer for itself or others.

      Shift Percentage: Not applicable.

      Six-Month LIBOR Index: The average of the London interbank offered rates
for six month U.S. dollar deposits in the London market, generally as set forth
in either The Wall Street Journal or some other source generally accepted in
the residential mortgage loan origination business and specified in the related
Mortgage Note or, if such rate ceases to be published in The Wall Street
Journal or becomes unavailable for any reason, then based upon a new index
selected by the Servicer, based on comparable information, in each case, as
most recently announced as of either 45 days prior to, or the first Business
Day of the month immediately preceding the month of, such Adjustment Date.

      Sixty-Day Delinquency Rate: With respect to any Distribution Date on or
after the Stepdown Date, a fraction, expressed as a percentage, the numerator
of which is the aggregate Stated Principal Balance of all Mortgage Loans 60 or
more days delinquent as of the close of business on the last day of the
calendar month preceding such Distribution Date (including Mortgage Loans in
foreclosure, bankruptcy and REO Properties) and the denominator of which is the
aggregate Stated Principal Balance for such Distribution Date of the Mortgage
Loans as of the related Due Date (after giving effect to Principal Prepayments,
the principal portion of any Liquidation Proceeds and any Subsequent Recoveries
received in the related Prepayment Period).

      Soft Prepayment Charge: As to a Mortgage Loan, any charge payable by a
Mortgagor in connection with certain partial prepayments and all prepayments in
full made within the related Prepayment Charge Period other than as a result of
selling the Mortgaged Property, the Soft Prepayment Charges with respect to
each applicable Mortgage Loan so held by the Trust Fund being identified in the
Mortgage Loan Schedule.

      Special Hazard Coverage Termination Date: Not applicable.

      Special Hazard Loss: Not applicable.

      Special Hazard Loss Coverage Amount: Not applicable.

      Special Hazard Mortgage Loan: Not applicable.

      Startup Day: The Closing Date.


                                      38
<PAGE>

      Stated Principal Balance: As to any Mortgage Loan and Due Date, the
unpaid principal balance of such Mortgage Loan as of such Due Date, as
specified in the amortization schedule at the time relating thereto (before any
adjustment to such amortization schedule by reason of any moratorium or similar
waiver or grace period) after giving effect to the sum of: (i) the payment of
principal due on such Due Date and irrespective of any delinquency in payment
by the related Mortgagor and (ii) any Liquidation Proceeds allocable to
principal received in the prior calendar month and any Principal Prepayments
received through the last day of the related Prepayment Period, in each case,
with respect to such Mortgage Loan.

      Stepdown Date: The earlier to occur of (1) the first Distribution Date
after the Distribution Date on which the aggregate Class Certificate Balance of
the Senior Certificates is reduced to zero and (2) the later to occur of (x)
the Distribution Date in December 2009 and (y) the first Distribution Date on
which the fraction, expressed as a percentage, the numerator of which is the
sum of aggregate Class Certificate Balance of the Subordinated Certificates and
the Overcollateralized Amount, if any, and the denominator of which is the Pool
Principal Balance as of the Due Date in the prior month (after giving effect to
Principal Prepayments in the Prepayment Period related to that prior Due Date)
exceeds or equals 13.90%.

      Stepdown Target Subordination Percentage: For any Class of Subordinated
Certificates, the respective percentages indicated in the following table:

                                        Stepdown Target
                                   Subordination Percentage
                                   ------------------------
Class M-1........................            11.10%
Class M-2........................             8.60%
Class M-3........................             7.20%
Class M-4........................             5.90%
Class M-5........................             3.90%
Class M-6........................             2.40%
Class M-7........................             0.80%

      Subcontractor: Any vendor, subcontractor or other Person that is not
responsible for the overall servicing (as "servicing" is commonly understood by
participants in the mortgage-backed securities market) of Mortgage Loans but
performs one or more discrete functions identified in Item 1122(d) of
Regulation AB with respect to the Mortgage Loans under the direction or
authority of the Servicer or the Trustee, as the case may be.

      Subordinated Certificates: As specified in the Preliminary Statement.

      Subordinated Class Principal Distribution Target Amount: For any Class of
Subordinated Certificates and Distribution Date will equal the excess of:

      (1) the sum of: (a) the aggregate Class Certificate Balance of the Senior
Certificates (after taking into account the distribution of the Senior
Principal Distribution Amount for that Distribution Date), (b) the aggregate
Class Certificate Balance of any Class(es) of Subordinated Certificates that
are senior to the subject Class (in each case, after taking into account
distribution of the Subordinated Class Principal Distribution Target Amount(s)
for such more senior Class(es) of Certificates for such Distribution Date), and
(c) the Class Certificate Balance of the subject Class of Subordinated
Certificates immediately prior to such Distribution Date over


                                      39
<PAGE>

      (2) the lesser of (a) the product of (x) 100% minus the applicable
Stepdown Target Subordination Percentage for the subject Class of Certificates
and (y) the Pool Principal Balance for that Distribution Date and (b) the Pool
Principal Balance for that Distribution Date minus the OC Floor;

provided, however, that if such Class of Subordinated Certificates is the only
Class of Subordinated Certificates outstanding on such Distribution Date, that
Class will be entitled to receive the entire remaining Principal Distribution
Amount until its Class Certificate Balance is reduced to zero.

      Subsequent Recoveries: As to any Distribution Date, with respect to a
Liquidated Mortgage Loan that resulted in a Realized Loss in a prior calendar
month, unexpected amounts received by the Servicer (net of any related expenses
permitted to be reimbursed pursuant to Section 3.09) specifically related to
such Liquidated Mortgage Loan.

      Substitute Mortgage Loan: A Mortgage Loan substituted by the Seller for a
Deleted Mortgage Loan that must, on the date of substitution, as confirmed in a
Request for Release, substantially in the form of Exhibit M,

      (i) have a Stated Principal Balance, after deduction of the principal
portion of the Scheduled Payment due in the month of substitution, not in
excess of, and not more than 10% less than, the Stated Principal Balance of the
Deleted Mortgage Loan (unless the amount of any shortfall is deposited by the
Seller in the Certificate Account and held for distribution to the
Certificateholders on the related Distribution Date);

      (ii) have a Mortgage Rate no lower than and not more than 1% per annum
higher than the Deleted Mortgage Loan;

      (iii) have a Maximum Mortgage Rate not more than 1% per annum higher than
and not lower than the Maximum Mortgage Rate of the Deleted Mortgage Loan,

      (iv) have the same Mortgage Index and interval between Adjustment Dates
as the Deleted Mortgage Loan and a Gross Margin not more than 1% per annum
higher than, and not lower than that of the Deleted Mortgage Loan;

      (vi) have a Loan-to-Value Ratio no higher than that of the Deleted
Mortgage Loan;

      (vii) have a remaining term to maturity no greater than (and not more
than one year less than) that of the Deleted Mortgage Loan;

      (viii) not be a Cooperative Loan unless the Deleted Mortgage Loan was a
Cooperative Loan; and

      (ix) comply with each representation and warranty in Section 2.03.

      Substitution Adjustment Amount: As defined in Section 2.03.

      Supplemental Interest Reserve Fund: The separate Eligible Account created
and maintained by the Supplemental Interest Trustee pursuant to Section 3.06(f)
in the name of the Supplemental Interest Trustee for the benefit of the Holders
of the Class 1-A-1A Certificates and designated "Deutsche Bank National Trust
Company in trust for the registered Holders of IndyMac INDX Mortgage Loan Trust
2006-AR35, Mortgage Pass-Through Certificates, Series 2006-AR35, Class 1-A-1A.
Funds in the Supplemental Interest Reserve Fund shall be held in trust for the
Holders of the Class 1-A-1A Certificates


                                      40
<PAGE>

for the uses and purposes set forth in this Agreement. The Supplemental
Interest Reserve Fund will not be an asset of any REMIC.

      Supplemental Interest Trust: The trust fund established pursuant to
Section 4.08(b).

      Supplemental Interest Trustee: Deutsche Bank National Trust Company, not
in its individual capacity, but solely in its capacity as trustee for the
benefit of the Holders of the Corridor Certificates under this Agreement, and
any successor thereto, and any corporation or national banking association
resulting from or surviving any consolidation or merger to which it or its
successors may be a party and any successor trustee as may from time to time be
serving as successor trustee under this Agreement.

      Suspension Notification: Notification to the Commission of the suspension
of the Trust Fund's obligation to file reports pursuant to Section 15(d) of the
Exchange Act.

      Swap Account: The separate Eligible Account created and initially
maintained by the Swap Trustee pursuant to Section 4.08.

      Swap Adjustment Rate: For each Distribution Date and Loan Group, a
fraction, (A) the numerator of which is the sum of (a) the Net Swap Payment
payable to the Swap Counterparty under the Swap Contract with respect to such
Distribution Date times a fraction, the numerator of which is 360 and the
denominator of which is the actual number of days in the related Interest
Accrual Period and (b) any Swap Termination Payment payable to the Swap
Counterparty under the Swap Contract for such Distribution Date (other than a
Swap Termination Payment due to a Swap Counterparty Trigger Event), and (B) the
denominator of which is the aggregate Stated Principal Balance of the Mortgage
Loans in that Loan Group as of the Due Date in the prior calendar month (after
giving effect to Principal Prepayments, the principal portion of Liquidation
Proceeds and any Subsequent Recoveries received in the Prepayment Period
related to that prior Due Date).

      Swap Allocation Percentage: For each Distribution Date and Loan Group is
a fraction, expressed as a percentage, (A) the numerator of which is the
Principal Remittance Amount for that Distribution Date and Loan Group and (B)
the denominator of which is the aggregate Principal Remittance Amount for that
Loan Group and Distribution Date.

      Swap Certificates: The LIBOR Certificates.

      Swap Contract: With respect to the LIBOR Certificates, the transaction
evidenced by the related Confirmation, a form of which is attached to this
Agreement as Exhibit P-1.

      Swap Contract Termination Date: The Distribution Date in November 2013.

      Swap Counterparty: The Bank of New York.

      Swap Counterparty Trigger Event: A Swap Termination Payment that is
triggered upon (i) an "Event of Default" under the Swap Contract with respect
to which the Swap Counterparty is the sole `Defaulting Party" (as defined in
the Swap Contract) or (ii) a "Termination Event" or "Additional Termination
Event" under the Swap Contract with respect to which the Swap Counterparty is
the sole "Affected Party" (as defined in the Swap Contract).

      Swap Report: The report to be delivered by the Determination Date prior
to each Distribution Date by the Swap Counterparty to the Swap Trustee
containing the amount of any Net Swap Payment


                                      41
<PAGE>

payable by the Swap Trust or the Swap Counterparty to the other party, as the
case may be, with respect to the Swap Contract for that Distribution Date.

      Swap Trustee: Deutsche Bank National Trust Company, not in its individual
capacity, but solely in its capacity as trustee of the Swap Trust for the
benefit of the Holders of the LIBOR Certificates under this Agreement, and any
successor thereto, and any corporation or national banking association
resulting from or surviving any consolidation or merger to which it or its
successors may be a party and any successor trustee as may from time to time be
serving as successor trustee hereunder.


                                      42
<PAGE>

      Swap Table: The table set forth below:

Month of Distribution                      Swap Contract
Date                                    Notional Balance ($)
----------------------                   --------------------

December 2006..                            4,229,568.00
January 2007...                            4,202,618.02
February 2007..                            4,166,888.36
March 2007.....                            4,122,374.16
April 2007.....                            4,069,120.09
May 2007.......                            4,007,216.80
June 2007......                            3,936,828.50
July 2007......                            3,858,211.89
August 2007....                            3,770,778.95
September 2007.                            3,677,006.19
October 2007...                            3,576,626.54
November 2007..                            3,471,068.85
December 2007..                            3,363,517.04
January 2008...                             3,259,279.66
February 2008..                            3,158,254.63
March 2008.....                            3,060,343.00
April 2008.....                            2,965,448.84
May 2008.......                            2,872,703.62
June 2008......                            2,783,592.30
July 2008......                            2,696,344.22
August 2008....                            2,612,167.88
September 2008.                            2,527,894.12
October 2008...                             2,447,993.00
November 2008..                            2,371,971.12
December 2008..                            2,296,687.50
January 2009...                            2,224,684.57
February 2009..                            2,155,545.51
March 2009.....                             2,088,537.58
April 2009.....                            2,023,595.13
May 2009.......                            1,960,654.51
June 2009......                            1,899,654.07
July 2009......                            1,838,843.80
August 2009....                            1,780,345.41
September 2009.                            1,722,054.04
October 2009...                            1,662,284.57
November 2009..                            1,599,721.27
December 2009..                             1,511,092.86
January 2010...                            1,463,041.55
February 2010..                            1,416,622.46
March 2010.....                            1,372,397.21
April 2010.....                            1,329,104.26
May 2010.......                             1,286,808.13
June 2010......                            1,246,584.88
July 2010......                            1,207,601.74
August 2010....                            1,169,414.95
September 2010.                            1,132,300.71
October 2010...                            1,096,841.06
November 2010..                            1,062,474.72
December 2010..                            1,028,785.68
January 2011...                              996,517.70
February 2011..                               964,863.36
March 2011.....                              933,955.48


                                      43
<PAGE>

Month of Distribution                      Swap Contract
Date                                    Notional Balance ($)
----------------------                  --------------------

April 2011.....                              904,611.94
May 2011.......                              874,787.54
June 2011......                              843,517.82
July 2011......                              811,155.67
August 2011....                              766,623.49
September 2011.                              720,961.59
October 2011...                              628,005.84
November 2011..                              438,841.37
December 2011..                               102,927.11
January 2012...                               99,225.93
February 2012..                               95,638.90
March 2012.....                               92,162.50
April 2012.....                               88,793.34
May 2012.......                               85,528.09
June 2012......                               82,363.55
July 2012......                               79,296.63
August 2012....                               76,324.31
September 2012.                                73,443.67
October 2012...                               70,651.90
November 2012..                               67,946.24
December 2012..                               65,324.05
January 20123                                 62,782.75
February 2013..                                60,319.85
March 2013.....                               57,932.93
April 2013.....                               55,619.66
May 2013.......                               53,377.74
June 2013......                               50,938.27
July 2013......                               48,288.67
August 2013....                               45,903.37
September 2013.                               41,400.81
October 2013...                               35,206.64
November 2013..                                11,422.12
December 2013 and
thereafter.....                                    0.00

      Swap Termination Payment : The payment payable to either party under a
Swap Contract due to an early termination of such Swap Contract.

      Swap Trust: The trust fund established by Section 4.08.

      Swap Trustee: Deutsche Bank National Trust Company, not in its individual
capacity, but solely in its capacity as trustee for the benefit of the Holders
of the LIBOR Certificates under this Agreement, and any successor thereto, and
any corporation or national banking association resulting from or surviving any
consolidation or merger to which it or its successors may be a party and any
successor trustee as may from time to time be servicing as successor trustee
under this Agreement.

      Targeted Balance: Not applicable.

      Targeted Principal Classes: As specified in the Preliminary Statement.


                                      44
<PAGE>

      Transaction Documents: This Agreement, the Swap Contract, the Corridor
Contract and any other document or agreement entered into in connection with
the Trust Fund, the Certificates or the Mortgage Loans.

      Transfer: Any direct or indirect transfer or sale of any Ownership
Interest in a Residual Certificate.

       Trigger Event: With respect to a Distribution Date on or after the
Stepdown Date either a Delinquency Trigger Event is in effect with respect to
that Distribution Date or a Cumulative Loss Trigger Event is in effect with
respect to that Distribution Date.

      Trust Fund: The corpus of the trust created under this Agreement
consisting of

      (i) the Mortgage Loans and all interest and principal received on them
after the Cut-off Date, other than amounts due on the Mortgage Loans by the
Cut-off Date;

      (ii) the Certificate Account, the Distribution Account, the Carryover
Reserve Fund and all amounts deposited therein pursuant to this Agreement
(including amounts received from the Seller on the Closing Date that will be
deposited by the Trustee in the Certificate Account pursuant to Section 2.01);

      (iii) property that secured a Mortgage Loan and has been acquired by
foreclosure, deed-in-lieu of foreclosure, or otherwise;

      (iv) the right to collect any amounts under any mortgage insurance
policies covering any Mortgage Loan and any collections received under any
mortgage insurance policies covering any Mortgage Loan; and

      (v) all proceeds of the conversion, voluntary or involuntary, of any of
the foregoing.

      Trustee: Deutsche Bank National Trust Company and its successors and, if
a successor trustee is appointed under this Agreement, the successor.

      Trustee Fee: The fee payable to the Trustee on each Distribution Date for
its services as Trustee hereunder, in an amount equal to one-twelfth of the
Trustee Fee Rate multiplied by the aggregate Stated Principal Balance of the
Mortgage Loans as of the Due Date in the month preceding the month of such
Distribution Date (after giving effect to Principal Prepayments in the
Prepayment Period related to that prior Due Date).

      Trustee Fee Rate: 0.0020% per annum.

      The terms "United States," "State," and "International Organization" have
the meanings in section 7701 of the Code or successor provisions. A corporation
will not be treated as an instrumentality of the United States or of any State
or political subdivision thereof for these purposes if all of its activities
are subject to tax and, with the exception of the Federal Home Loan Mortgage
Corporation, a majority of its board of directors is not selected by such
government unit.

      UCC: The Uniform Commercial Code for the State of New York.

      Underwriter's Exemption: Prohibited Transaction Exemption 2002-41, 67
Fed. Reg. 54487 (2002) (or any successor thereto), or any substantially similar
administrative exemption granted by the U.S. Department of Labor.


                                      45
<PAGE>

      United States Person or U.S. Person:

      (i) A citizen or resident of the United States;

      (ii) a corporation (or entity treated as a corporation for tax purposes)
created or organized in the United States or under the laws of the United
States or of any state thereof, including, for this purpose, the District of
Columbia;

      (iii) a partnership (or entity treated as a partnership for tax purposes)
organized in the United States or under the laws of the United States or of any
state thereof, including, for this purpose, the District of Columbia (unless
provided otherwise by future Treasury regulations);

      (iv) an estate whose income is includible in gross income for United
States income tax purposes regardless of its source; or

      (v) a trust, if a court within the United States is able to exercise
primary supervision over the administration of the trust and one or more U.S.
Persons have authority to control all substantial decisions of the trust.
Notwithstanding the last clause of the preceding sentence, to the extent
provided in Treasury regulations, certain trusts in existence on August 20,
1996, and treated as U.S. Persons before that date, may elect to continue to be
U.S. Persons.

      Unpaid Realized Loss Amount: For any Class of LIBOR Certificates, (x) the
portion of the aggregate Applied Realized Loss Amount previously allocated to
that Class remaining unpaid from prior Distribution Dates minus (y) any
increase in the Class Certificate Balance of that Class due to the allocation
of Subsequent Recoveries to the Class Certificate Balance of that Class.

      U.S.A. Patriot Act: The Uniting and Strengthening America by Providing
Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001.

      Voting Rights: The portion of the voting rights of all of the
Certificates that is allocated to any Certificate. As of any date of
determination, (a) 1% of all Voting Rights shall be allocated to the Holders of
the Class A-R Certificates and (b) the remaining Voting Rights shall be
allocated among Holders of the remaining Classes of Certificates in proportion
to the Certificate Balances of the respective Certificates on that date.

      Weighted Average Adjusted Net Mortgage Rate: For any Distribution Date,
the average of the Adjusted Net Mortgage Rate of each Mortgage Loan, weighted
on the basis of its Stated Principal Balance as of the Due Date in the prior
month (after giving effect to Principal Prepayments in the Prepayment Period
related to such prior Due Date).

      Withdrawal Date: The 18th day of each month, or if such day is not a
Business Day, the next preceding Business Day.

      Section 1.02. Rules of Construction.

      Except as otherwise expressly provided in this Agreement or unless the
context clearly requires otherwise

      (a) References to designated articles, sections, subsections, exhibits,
and other subdivisions of this Agreement, such as "Section 6.12 (a)," refer to
the designated article, section, subsection, exhibit, or other subdivision of
this Agreement as a whole and to all subdivisions of the designated article,


                                       46
<PAGE>

section, subsection, exhibit, or other subdivision. The words "herein,"
"hereof," "hereto," "hereunder," and other words of similar import refer to
this Agreement as a whole and not to any particular article, section, exhibit,
or other subdivision of this Agreement.

      (b) Any term that relates to a document or a statute, rule, or regulation
includes any amendments, modifications, supplements, or any other changes that
may have occurred since the document, statute, rule, or regulation came into
being, including changes that occur after the date of this Agreement.

      (c) Any party may execute any of the requirements under this Agreement
either directly or through others, and the right to cause something to be done
rather than doing it directly shall be implicit in every requirement under this
Agreement. Unless a provision is restricted as to time or limited as to
frequency, all provisions under this Agreement are implicitly available and
things may happen from time to time.

      (d) The term "including" and all its variations mean "including but not
limited to." Except when used in conjunction with the word "either," the word
"or" is always used inclusively (for example, the phrase "A or B" means "A or B
or both," not "either A or B but not both").

      (e) A reference to "a [thing]" or "any [of a thing]" does not imply the
existence or occurrence of the thing referred to even though not followed by
"if any," and "any [of a thing]" is any of it. A reference to the plural of
anything as to which there could be either one or more than one does not imply
the existence of more than one (for instance, the phrase "the obligors on a
note" means "the obligor or obligors on a note"). "Until [something occurs]"
does not imply that it must occur, and will not be modified by the word
"unless." The word "due" and the word "payable" are each used in the sense that
the stated time for payment has passed. The word "accrued" is used in its
accounting sense, i.e., an amount paid is no longer accrued. In the calculation
of amounts of things, differences and sums may generally result in negative
numbers, but when the calculation of the excess of one thing over another
results in zero or a negative number, the calculation is disregarded and an
"excess" does not exist. Portions of things may be expressed as fractions or
percentages interchangeably.

      (f) All accounting terms used in an accounting context and not otherwise
defined, and accounting terms partly defined in this Agreement, to the extent
not completely defined, shall be construed in accordance with generally
accepted accounting principles. To the extent that the definitions of
accounting terms in this Agreement are inconsistent with their meanings under
generally accepted accounting principles, the definitions contained in this
Agreement shall control. Capitalized terms used in this Agreement without
definition that are defined in the Uniform Commercial Code are used in this
Agreement as defined in the Uniform Commercial Code.

      (g) In the computation of a period of time from a specified date to a
later specified date or an open-ended period, the words "from" and "beginning"
mean "from and including," the word "after" means "from but excluding," the
words "to" and "until" mean "to but excluding," and the word "through" means
"to and including." Likewise, in setting deadlines or other periods, "by" means
"by." The words "preceding," "following," and words of similar import, mean
immediately preceding or following. References to a month or a year refer to
calendar months and calendar years.

      (h) Any reference to the enforceability of any agreement against a party
means that it is enforceable, subject as to enforcement against the party, to
applicable bankruptcy, insolvency, reorganization, and other similar laws of
general applicability relating to or affecting creditors' rights and to general
equity principles.


                                      47
<PAGE>

                                  Article Two

          CONVEYANCE OF MORTGAGE LOANS; REPRESENTATIONS AND WARRANTIES

      Section 2.01. Conveyance of Mortgage Loans.

      (a) The Seller, concurrently with the execution and delivery of this
Agreement, hereby transfers to the Depositor, without recourse, all the
interest of the Seller in each Mortgage Loan, including all interest and
principal received or receivable by the Seller on each Mortgage Loan after the
Cut-off Date and all interest and principal payments on each Mortgage Loan
received before the Cut-off Date for installments of interest and principal due
after the Cut-off Date but not including payments of principal and interest due
by the Cut-off Date. By the Closing Date, the Seller shall deliver to the
Depositor or, at the Depositor's direction, to the Trustee or other designee of
the Depositor, the Mortgage File for each Mortgage Loan listed in the Mortgage
Loan Schedule (except that, in the case of Mortgage Loans that are Delay
Delivery Mortgage Loans, such delivery may take place within five Business Days
of the Closing Date) as of the Closing Date. The delivery of the Mortgage Files
shall be made against payment by the Depositor of the purchase price,
previously agreed to by the Seller and Depositor, for the Mortgage Loans. With
respect to any Mortgage Loan that does not have a first payment date on or
before the Due Date in the month of the first Distribution Date, the Seller
shall deposit into the Distribution Account on the first Distribution Account
Deposit Date an amount equal to one month's interest at the related Adjusted
Mortgage Rate on the Cut-off Date Principal Balance of such Mortgage Loan. On
the Closing Date the Depositor shall also deposit or shall cause to be
deposited $1,000 into the Carryover Reserve Fund and $200 into the Certificate
Account.

      (b) The Depositor, concurrently with the execution and delivery of this
Agreement, hereby (i) transfers to the Trustee for the benefit of the
Certificateholders, without recourse, all the interest of the Depositor in the
Trust Fund, together with the Depositor's right to require the Seller to cure
any breach of a representation or warranty made in this Agreement by the Seller
or to repurchase or substitute for any affected Mortgage Loan in accordance
with this Agreement. The Depositor hereby directs the Swap Trustee to execute
the Swap Contract, and the Supplemental Interest Trustee to execute the
Corridor Contract.

      (c) In connection with the transfer and assignment of each Mortgage Loan,
the Depositor has delivered (or, in the case of the Delay Delivery Mortgage
Loans, will deliver to the Trustee within the time periods specified in the
definition of Delay Delivery Mortgage Loans), for the benefit of the
Certificateholders the following documents or instruments with respect to each
Mortgage Loan so assigned:

            (i) The original Mortgage Note, endorsed by manual or facsimile
      signature in blank in the following form: "Pay to the order of
      _______________ ______________without recourse," with all intervening
      endorsements showing a complete chain of endorsement from the originator
      to the Person endorsing the Mortgage Note (each endorsement being
      sufficient to transfer all interest of the party so endorsing, as
      noteholder or assignee thereof, in that Mortgage Note) or a lost note
      affidavit for any Lost Mortgage Note from the Seller stating that the
      original Mortgage Note was lost or destroyed, together with a copy of the
      Mortgage Note.

            (ii) except as provided below and for each Mortgage Loan that is
      not a MERS Mortgage Loan, the original recorded Mortgage or a copy of
      such Mortgage certified by the Seller as being a true and complete copy
      of the Mortgage (or, in the case of a Mortgage for which the related
      Mortgaged Property is located in the Commonwealth of Puerto Rico, a true
      copy of the Mortgage certified as such by the applicable notary) and in
      the case of each MERS


                                      48
<PAGE>

      Mortgage Loan, the original Mortgage, noting the presence of the MIN of
      the Mortgage Loans and either language indicating that the Mortgage Loan
      is a MOM Loan if the Mortgage Loan is a MOM Loan or if the Mortgage Loan
      was not a MOM Loan at origination, the original Mortgage and the
      assignment thereof to MERS, with evidence of recording indicated thereon,
      or a copy of the Mortgage certified by the public recording office in
      which such Mortgage has been recorded.

            (iii) In the case of a Mortgage Loan that is not a MERS Mortgage
      Loan, a duly executed assignment of the Mortgage (which may be included
      in a blanket assignment or assignments), together with, except as
      provided below, all interim recorded assignments of the mortgage (each
      assignment, when duly and validly completed, to be in recordable form and
      sufficient to effect the assignment of and transfer to its assignee of
      the Mortgage to which the assignment relates). If the related Mortgage
      has not been returned from the applicable public recording office, the
      assignment of the Mortgage may exclude the information to be provided by
      the recording office. The assignment of Mortgage need not be delivered in
      the case of a Mortgage for which the related Mortgage Property is located
      in the Commonwealth of Puerto Rico.

            (iv) The original or copies of each assumption, modification,
      written assurance, or substitution agreement.

            (v) Except as provided below, the original or duplicate original
      lender's title policy and all its riders.

            (vi) The originals of the following documents for each Cooperative
      Loan:

(A) the Co-op Shares, together with a stock power in blank;

(B) the executed Security Agreement;

(C) the executed Proprietary Lease;

(D) the executed Recognition Agreement;

(E) the executed UCC-1 financing statement that has been filed in all places
required to perfect the Seller's interest in the Co-op Shares and the
Proprietary Lease with evidence of recording on it; and

(F) executed UCC-3 financing statements or other appropriate UCC financing
statements required by state law, evidencing a complete and unbroken line from
the mortgagee to the Trustee with evidence of recording thereon (or in a form
suitable for recordation). If in connection with any Mortgage Loan the
Depositor cannot deliver

                  (a)    the original recorded Mortgage,

                  (b)    all interim recorded assignments, or

                   (c)    the lender's title policy (together with all its
                        riders).

      In addition, in connection with the assignment of any MERS Mortgage Loan,
the Seller agrees that it will cause, at the Seller's expense, the MERS(R)
System to indicate that the Mortgage Loans sold by the Seller to the Depositor
have been assigned by the Seller to the Trustee in accordance with this


                                      49
<PAGE>

Agreement for the benefit of the Certificateholders by including (or deleting,
in the case of Mortgage Loans that are repurchased in accordance with this
Agreement) in such computer files the information required by the MERS(R)
System to identify the series of the Certificates issued in connection with
such Mortgage Loans. The Seller further agrees that it will not, and will not
permit the Servicer to, and the Servicer agrees that it will not, alter the
information referenced in this paragraph with respect to any Mortgage Loan sold
by the Seller to the Depositor during the term of this Agreement unless and
until such Mortgage Loan is repurchased in accordance with the terms of this
Agreement.

      In the event that in connection with any Mortgage Loan that is not a MERS
Mortgage Loan the Depositor cannot deliver (a) the original recorded Mortgage,
(b) all interim recorded assignments or (c) the lender's title policy (together
with all riders thereto) satisfying the requirements of clause (ii), (iii) or
(v) above, respectively, concurrently with the execution and delivery of this
Agreement because such document or documents have not been returned from the
applicable public recording office in the case of clause (ii) or (iii) above,
or because the title policy has not been delivered to either the Servicer or
the Depositor by the applicable title insurer in the case of clause (v) above,
then the Depositor shall promptly deliver to the Trustee, in the case of clause
(ii) or (iii) above, the original Mortgage or the interim assignment, as the
case may be, with evidence of recording indicated on when it is received from
the public recording office, or a copy of it, certified, if appropriate, by the
relevant recording office and in the case of clause (v) above, the original or
a copy of a written commitment or interim binder or preliminary report of title
issued by the title insurance or escrow company, with the original or duplicate
copy thereof to be delivered to the Trustee upon receipt thereof. The delivery
of the original Mortgage Loan and each interim assignment or a copy of them,
certified, if appropriate, by the relevant recording office, shall not be made
later than one year following the Closing Date, or, in the case of clause (v)
above, later than 120 days following the Closing Date. If the Depositor is
unable to deliver each Mortgage by that date and each interim assignment
because any documents have not been returned by the appropriate recording
office, or, in the case of each interim assignment, because the related
Mortgage has not been returned by the appropriate recording office, the
Depositor shall deliver the documents to the Trustee as promptly as possible
upon their receipt and, in any event, within 720 days following the Closing
Date.

      The Depositor shall forward to the Trustee (a) from time to time
additional original documents evidencing an assumption or modification of a
Mortgage Loan and (b) any other documents required to be delivered by the
Depositor or the Servicer to the Trustee. If the original Mortgage is not
delivered and in connection with the payment in full of the related Mortgage
Loan the public recording office requires the presentation of a "lost
instruments affidavit and indemnity" or any equivalent document, because only a
copy of the Mortgage can be delivered with the instrument of satisfaction or
reconveyance, the Servicer shall execute and deliver the required document to
the public recording office. If a public recording office retains the original
recorded Mortgage or if a Mortgage is lost after recordation in a public
recording office, the Seller shall deliver to the Trustee a copy of the
Mortgage certified by the public recording office to be a true and complete
copy of the original recorded Mortgage.

      As promptly as practicable after any transfer of a Mortgage Loan under
this Agreement, and in any event within thirty days after the transfer, the
Trustee shall (i) affix the Trustee's name to each assignment of Mortgage, as
its assignee, and (ii) cause to be delivered for recording in the appropriate
public office for real property records the assignments of the Mortgages to the
Trustee, except that, if the Trustee has not received the information required
to deliver any assignment of a Mortgage for recording, the Trustee shall
deliver it as soon as practicable after receipt of the needed information and
in any event within thirty days.

      The Trustee need not record any assignment that relates to a Mortgage
Loan (a) the Mortgaged Property and Mortgage File relating to which are located
in California or (b) in any other jurisdiction (including Puerto Rico) under
the laws of which, as evidenced by an Opinion of Counsel delivered by the


                                      50
<PAGE>

Seller (at the Seller's expense) to the Trustee, recording the assignment is
not necessary to protect the Trustee's and the Certificateholders' interest in
the related Mortgage Loan. The Seller shall deliver such Opinion of Counsel
within 90 days of the Closing Date.

      If any Mortgage Loans have been prepaid in full as of the Closing Date,
the Depositor, in lieu of delivering the above documents to the Trustee, will
deposit in the Certificate Account the portion of the prepayment that is
required to be deposited in the Certificate Account pursuant to Section 3.06.

      Notwithstanding anything to the contrary in this Agreement, within five
Business Days after the Closing Date, the Seller shall either

            (x) deliver to the Trustee the Mortgage File as required pursuant
            to this Section 2.01 for each Delay Delivery Mortgage Loan or

            (y) (A) repurchase the Delay Delivery Mortgage Loan or (B)
            substitute the Substitute Mortgage Loan for a Delay Delivery
            Mortgage Loan, which repurchase or substitution shall be
            accomplished in the manner and subject to the conditions in Section
            2.03 (treating each such Delay Delivery Mortgage Loan as a Deleted
            Mortgage Loan for purposes of such Section 2.03);

provided, however, that if the Seller fails to deliver a Mortgage File for any
Delay Delivery Mortgage Loan within the period specified herein, the Seller
shall use its best reasonable efforts to effect a substitution, rather than a
repurchase of, such Deleted Mortgage Loan and provided further that the cure
period provided for in Section 2.02 or in Section 2.03 shall not apply to the
initial delivery of the Mortgage File for such Delay Delivery Mortgage Loan,
but rather the Seller shall have five (5) Business Days to cure such failure to
deliver. At the end of such period, the Trustee shall send a Delay Delivery
Certification for the Delay Delivery Mortgage Loans delivered during such
period in accordance with the provisions of Section 2.02.

      (d) The Seller agrees to treat the transfer of the Mortgage Loans to the
Depositor as a sale for all tax, accounting, and regulatory purposes.

      Section 2.02. Acceptance by the Trustee of the Mortgage Loans.

      The Trustee acknowledges receipt of the documents identified in the
Initial Certification in the form of Exhibit G-1, and declares that it holds
and will hold such documents and the other documents delivered to it
constituting the Mortgage Files for the Mortgage Loans, and that it holds or
will hold such other assets as are included in the Trust Fund, in trust for the
exclusive use and benefit of all present and future Certificateholders.

      The Trustee acknowledges that it will maintain possession of the related
Mortgage Notes in the State of California, unless otherwise permitted by the
Rating Agencies. The Trustee agrees to execute and deliver on the Closing Date
to the Depositor, the Servicer and the Seller an Initial Certification in the
form of Exhibit G-1. Based on its review and examination, and only as to the
documents identified in such Initial Certification, the Trustee acknowledges
that such documents appear regular on their face and relate to such Mortgage
Loans. The Trustee shall be under no duty or obligation to inspect, review or
examine said documents, instruments, certificates or other papers to determine
that the same are genuine, enforceable or appropriate for the represented
purpose or that they have actually been recorded in the real estate records or
that they are other than what they purport to be on their face.


                                       51
<PAGE>

      By the thirtieth day after the Closing Date (or if that day is not a
Business Day, the succeeding Business Day), the Trustee shall deliver to the
Depositor, the Servicer, and the Seller a Delay Delivery Certification with
respect to the Mortgage Loans substantially in the form of Exhibit G-3, with
any applicable exceptions noted thereon.

      By the ninetieth day after the Closing Date (or if that day is not a
Business Day, the succeeding Business Day), the Trustee shall deliver to the
Depositor, the Servicer and the Seller a Final Certification with respect to
the Mortgage Loans in the form of Exhibit H-1, with any applicable exceptions
noted thereon.

      If, in the course of its review, the Trustee finds any document
constituting a part of a Mortgage File that does not meet the requirements of
Section 2.01, the Trustee shall list such as an exception in the Final
Certification. The Trustee shall not make any determination as to whether (i)
any endorsement is sufficient to transfer all interest of the party so
endorsing, as noteholder or assignee thereof, in that Mortgage Note or (ii) any
assignment is in recordable form or is sufficient to effect the assignment of
and transfer to the assignee thereof under the mortgage to which the assignment
relates. The Seller shall promptly correct any defect that materially and
adversely affects the interests of the Certificateholders within 90 days from
the date it was so notified of the defect and, if the Seller does not correct
the defect within that period, the Seller shall either (a) substitute for the
related Mortgage Loan a Substitute Mortgage Loan, which substitution shall be
accomplished in the pursuant Section 2.03, or (b) purchase the Mortgage Loan at
its Purchase Price from the Trustee within 90 days from the date the Seller was
notified of the defect in writing.

      If a substitution or purchase of a Mortgage Loan pursuant to this
provision is required because of a delay in delivery of any documents by the
appropriate recording office, or there is a dispute between either the Servicer
or the Seller and the Trustee over the location or status of the recorded
document, then the substitution or purchase shall occur within 720 days from
the Closing Date. In no other case may a substitution or purchase occur more
than 540 days from the Closing Date.

      The Trustee shall deliver written notice to each Rating Agency within 270
days from the Closing Date indicating each Mortgage Loan (a) that has not been
returned by the appropriate recording office or (b) as to which there is a
dispute as to location or status of the Mortgage Loan. The notice shall be
delivered every 90 days thereafter until the related Mortgage Loan is returned
to the Trustee. Any substitution pursuant to (a) above or purchase pursuant to
(b) above shall not be effected before the delivery to the Trustee of the
Opinion of Counsel, if required by Section 2.05, and any substitution pursuant
to (a) above shall not be effected before the additional delivery to the
Trustee of a Request for Release substantially in the form of Exhibit N. No
substitution is permitted to be made in any calendar month after the
Determination Date for the month.

      The Purchase Price for any Mortgage Loan shall be deposited by the Seller
in the Certificate Account by the Distribution Account Deposit Date for the
Distribution Date in the month following the month of repurchase and, upon
receipt of the deposit and certification with respect thereto in the form of
Exhibit N, the Trustee shall release the related Mortgage File to the Seller
and shall execute and deliver at the Seller's request any instruments of
transfer or assignment prepared by the Seller, in each case without recourse,
necessary to vest in the Seller, or a designee, the Trustee's interest in any
Mortgage Loan released pursuant hereto.

      If pursuant to the foregoing provisions the Seller repurchases a Mortgage
Loan that is a MERS Mortgage Loan, the Servicer shall either (i) cause MERS to
execute and deliver an assignment of the Mortgage in recordable form to
transfer the Mortgage from MERS to the Seller and shall cause such Mortgage to
be removed from registration on the MERS(R) System in accordance with MERS'
rules and


                                      52
<PAGE>

regulations or (ii) cause MERS to designate on the MERS(R) System the Seller as
the beneficial holder of such Mortgage Loan.

      The Trustee shall retain possession and custody of each Mortgage File in
accordance with and subject to the terms and conditions set forth herein. The
Servicer shall promptly deliver to the Trustee, upon the execution or receipt
thereof, the originals of any other documents or instruments constituting the
Mortgage File that come into the possession of the Servicer from time to time.

      The obligation of the Seller to substitute for or to purchase any
Mortgage Loan that does not meet the requirements of Section 2.01 shall
constitute the sole remedy respecting the defect available to the Trustee, the
Depositor, and any Certificateholder against the Seller.

      Section 2.03. Representations, Warranties, and Covenants of the Seller
and the Servicer.

      (a) IndyMac, in its capacities as Seller and Servicer, makes the
representations and warranties in Schedule II, and by this reference
incorporated in this Agreement, to the Depositor and the Trustee, as of the
Closing Date.

      (b) The Seller, in its capacity as Seller, makes the representations and
warranties in Schedule III, and by this reference incorporated in this
Agreement, to the Depositor and the Trustee, as of the Closing Date, or if so
specified in Schedule III, as of the Cut-off Date.

      (c) Upon discovery by any of the parties hereto of a breach of a
representation or warranty made pursuant to Section 2.03(b) that materially and
adversely affects the interests of the Certificateholders in any Mortgage Loan,
the party discovering such breach shall give prompt notice thereof to the other
parties. Any breach of representations and warranties under clauses (28) and
(39) of Schedule III shall be deemed to affect materially and adversely the
interests of the Certificateholders in the affected Mortgage Loans. The Seller
covenants that within 90 days of the earlier of its discovery or its receipt of
written notice from any party of a breach of any representation or warranty
made pursuant to Section 2.03(b) which materially and adversely affects the
interests of the Certificateholders in any Mortgage Loan, it shall cure such
breach in all material respects, and if such breach is not so cured, shall, (i)
if the 90-day period expires before the second anniversary of the Closing Date,
remove the Mortgage Loan (a "Deleted Mortgage Loan") from the Trust Fund and
substitute in its place a Substitute Mortgage Loan, in accordance with this
Section 2.03; or (ii) repurchase the affected Mortgage Loan or Mortgage Loans
from the Trustee at the Purchase Price in the manner set forth below. Any
substitution pursuant to (i) above shall not be effected before the delivery to
the Trustee of the Opinion of Counsel, if required by Section 2.05 and a
Request for Release substantially in the form of Exhibit N, and the Mortgage
File for any Substitute Mortgage Loan. The Seller shall promptly reimburse the
Servicer and the Trustee for any expenses reasonably incurred by the Servicer
or the Trustee in respect of enforcing the remedies for the breach.

      With respect to any Substitute Mortgage Loan or Loans, the Seller shall
deliver to the Trustee for the benefit of the Certificateholders the Mortgage
Note, the Mortgage, the related assignment of the Mortgage, and such other
documents and agreements as are required by Section 2.01, with the Mortgage
Note endorsed and the Mortgage assigned as required by Section 2.01. No
substitution is permitted to be made in any calendar month after the
Determination Date for such month. Scheduled Payments due with respect to
Substitute Mortgage Loans in the month of substitution shall not be part of the
Trust Fund and will be retained by the Seller on the next succeeding
Distribution Date. For the month of substitution, distributions to
Certificateholders will include the monthly payment due on any Deleted Mortgage
Loan for such month and thereafter the Seller shall be entitled to retain all
amounts received in respect of such Deleted Mortgage Loan.


                                      53
<PAGE>

      The Servicer shall amend the Mortgage Loan Schedule for the benefit of
the Certificateholders to reflect the removal of the Deleted Mortgage Loan and
the substitution of the Substitute Mortgage Loans and the Servicer shall
deliver the amended Mortgage Loan Schedule to the Trustee. Upon the
substitution, the Substitute Mortgage Loans shall be subject to this Agreement
in all respects, and the Seller shall be deemed to have made with respect to
the Substitute Mortgage Loans, as of the date of substitution, the
representations and warranties made pursuant to Section 2.03(b) with respect to
the Mortgage Loan. Upon any substitution and the deposit to the Certificate
Account of the amount required to be deposited therein in connection with the
substitution as described in the following paragraph, the Trustee shall release
the Mortgage File held for the benefit of the Certificateholders relating to
the Deleted Mortgage Loan to the Seller and shall execute and deliver at the
Seller's direction such instruments of transfer or assignment prepared by the
Seller, in each case without recourse, as shall be necessary to vest title in
the Seller, or its designee, the Trustee's interest in any Deleted Mortgage
Loan substituted for pursuant to this Section 2.03.

      For any month in which the Seller substitutes one or more Substitute
Mortgage Loans for one or more Deleted Mortgage Loans, the Servicer will
determine the amount (if any) by which the aggregate principal balance of all
such Substitute Mortgage Loans as of the date of substitution is less than the
aggregate Stated Principal Balance of all such Deleted Mortgage Loans (after
application of the scheduled principal portion of the monthly payments due in
the month of substitution). The amount of such shortage (the "Substitution
Adjustment Amount") plus, if the Seller is not the Servicer, an amount equal to
the aggregate of any unreimbursed Advances and Servicer Advances with respect
to such Deleted Mortgage Loans shall be deposited into the Certificate Account
by the Seller by the Distribution Account Deposit Date for the Distribution
Date in the month succeeding the calendar month during which the related
Mortgage Loan became required to be purchased or replaced hereunder. If the
Seller repurchases a Mortgage Loan, the Purchase Price therefor shall be
deposited in the Certificate Account pursuant to Section 3.06 by the
Distribution Account Deposit Date for the Distribution Date in the month
following the month during which the Seller became obligated hereunder to
repurchase or replace the Mortgage Loan and upon such deposit of the Purchase
Price and receipt of a Request for Release in the form of Exhibit N, the
Trustee shall release the related Mortgage File held for the benefit of the
Certificateholders to such Person, and the Trustee shall execute and deliver at
such Person's direction such instruments of transfer or assignment prepared by
such Person, in each case without recourse, as shall be necessary to transfer
title from the Trustee. The obligation under this Agreement of any Person to
cure, repurchase, or replace any Mortgage Loan as to which a breach has
occurred and is continuing shall constitute the sole remedy against the Person
respecting the breach available to Certificateholders, the Depositor, or the
Trustee on their behalf.

      The representations and warranties made pursuant to this Section 2.03
shall survive delivery of the respective Mortgage Files to the Trustee for the
benefit of the Certificateholders.

      The Seller assigns to the Depositor and the Depositor assigns to the
Trustee all rights the Seller might have under contracts with third parties
relating to early payment defaults on the Mortgage Loans (the "EPD Rights") and
the Servicer assumes any related duties as part of its servicing obligations.
Consistent with the Servicing Standard, the Servicer shall attempt to enforce
the EPD Rights. If the Servicer's enforcement of the EPD Rights obligates the
Servicer to sell a Mortgage Loan to a third party, the Servicer shall
repurchase the Mortgage Loan at the Purchase Price and sell the Mortgage Loan
to the third party. Additionally, if any Mortgagor fails to make the first
payment due to the Trust Fund, and such Mortgagor has not made such payment by
February 1, 2007, the Servicer will repurchase the Mortgage Loan at the
Purchase Price prior to the Distribution Date in February 2007 (any Mortgage
Loans repurchased pursuant to this sentence, the "EPD Loans"). The Seller or
the Servicer shall deposit into the Certificate Account (x) all amounts
received in connection with the enforcement of EPD Rights, not exceeding the
Purchase Price, with respect to any Mortgage Loan and the Purchase Price for
any EPD


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<PAGE>

Loans. Any amounts received by the Servicer with respect to a Mortgage Loan in
excess of the Purchase Price shall be retained by the Servicer as additional
servicing compensation. The Trustee, upon receipt of certification from the
Servicer of the deposit of the Purchase Price in connection with a repurchase
of a Mortgage Loan and a Request for Release from the Servicer, shall release
or cause to be released to the purchaser of that Mortgage Loan the related
Mortgage File and shall execute and deliver such instruments of transfer or
assignment prepared by the purchaser of that Mortgage Loan, in each case
without recourse, as shall be necessary to vest in the purchaser of that
Mortgage Loan any Mortgage Loan released pursuant to this Section and the
purchaser of that Mortgage Loan shall succeed to all of the Trustee's right,
title and interest in and to such Mortgage Loan and all security and documents
related thereto. Such assignment shall be an assignment outright and not for
security. The purchaser of that Mortgage Loan shall thereupon own that Mortgage
Loan and all security and documents, free of any further obligation to the
Trustee or the Certificateholders with respect thereto.

      Section 2.04. Representations and Warranties of the Depositor as to the
Mortgage Loans.

      The Depositor represents and warrants to the Trustee with respect to each
Mortgage Loan as of the date of this Agreement or such other date set forth in
this Agreement that as of the Closing Date, and following the transfer of the
Mortgage Loans to it by the Seller, the Depositor had good title to the
Mortgage Loans and the Mortgage Notes were subject to no offsets, defenses, or
counterclaims.

      The representations and warranties in this Section 2.04 shall survive
delivery of the Mortgage Files to the Trustee. Upon discovery by the Depositor
or the Trustee of any breach of any of the representations and warranties in
this Section that materially and adversely affects the interest of the
Certificateholders, the party discovering the breach shall give prompt written
notice to the others and to each Rating Agency.

      Section 2.05. Delivery of Opinion of Counsel in Connection with
Substitutions.

      (a) Notwithstanding any contrary provision of this Agreement, no
substitution pursuant to Section 2.02 or 2.03 shall be made more than 90 days
after the Closing Date unless the Seller delivers to the Trustee an Opinion of
Counsel, which Opinion of Counsel shall not be at the expense of either the
Trustee or the Trust Fund, addressed to the Trustee, to the effect that such
substitution will not (i) result in the imposition of the tax on "prohibited
transactions" on the Trust Fund or contributions after the Startup Date, as
defined in sections 860F(a)(2) and 860G(d) of the Code, respectively or (ii)
cause any REMIC created under this Agreement to fail to qualify as a REMIC at
any time that any Certificates are outstanding.

      (b) Upon discovery by the Depositor, the Seller, the Servicer or the
Trustee that any Mortgage Loan does not constitute a "qualified mortgage"
within the meaning of section 860G(a)(3) of the Code, the party discovering
such fact shall promptly (and in any event within five Business Days of
discovery) give written notice thereof to the other parties. In connection
therewith, the Trustee shall require the Seller, at the Seller's option, to
either (i) substitute, if the conditions in Section 2.03(c) with respect to
substitutions are satisfied, a Substitute Mortgage Loan for the affected
Mortgage Loan, or (ii) repurchase the affected Mortgage Loan within 90 days of
such discovery in the same manner as it would a Mortgage Loan for a breach of
representation or warranty made pursuant to Section 2.03. The Trustee shall
reconvey to the Seller the Mortgage Loan to be released pursuant hereto in the
same manner, and on the same terms and conditions, as it would a Mortgage Loan
repurchased for breach of a representation or warranty contained in Section
2.03.


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<PAGE>

      Section 2.06. Execution and Delivery of Certificates.

      The Trustee acknowledges the transfer and assignment to it of the Trust
Fund and, concurrently with such transfer and assignment, has executed and
delivered to or upon the order of the Depositor, the Certificates in authorized
denominations evidencing directly or indirectly the entire ownership of the
Trust Fund. The Trustee agrees to hold the Trust Fund and exercise the rights
referred to above for the benefit of all present and future Holders of the
Certificates.

      Section 2.07. REMIC Matters.

      The Preliminary Statement sets forth the designations and "latest
possible maturity date" for federal income tax purposes of all interests
created under this Agreement. The "Startup Day" for purposes of the REMIC
Provisions shall be the Closing Date. Each REMIC's fiscal year shall be the
calendar year.


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<PAGE>

                                 Article Three

                  ADMINISTRATION AND SERVICING OF MORTGAGE LOANS

      Section 3.01. Servicer to Service Mortgage Loans.

      For and on behalf of the Certificateholders, the Servicer shall service
and administer the Mortgage Loans in accordance with this Agreement and the
Servicing Standard.

      The Servicer shall not make or permit any modification, waiver, or
amendment of any term of any Mortgage Loan that would cause any REMIC created
under this Agreement to fail to qualify as a REMIC or result in the imposition
of any tax under section 860F(a) or section 860G(d) of the Code.

      Without limiting the generality of the foregoing, the Servicer, in its
own name or in the name of the Depositor and the Trustee, is hereby authorized
and empowered by the Depositor and the Trustee, when the Servicer believes it
appropriate in its reasonable judgment, to execute and deliver, on behalf of
the Trustee, the Depositor, the Certificateholders, or any of them, any
instruments of satisfaction or cancellation, or of partial or full release or
discharge, and all other comparable instruments, with respect to the Mortgage
Loans, and with respect to the Mortgaged Properties held for the benefit of the
Certificateholders. The Servicer shall prepare and deliver to the Depositor or
the Trustee any documents requiring execution and delivery by either or both of
them appropriate to enable the Servicer to service and administer the Mortgage
Loans to the extent that the Servicer is not permitted to execute and deliver
such documents pursuant to the preceding sentence. Upon receipt of the
documents, the Depositor or the Trustee shall execute the documents and deliver
them to the Servicer.

      The Servicer further is authorized and empowered by the Trustee, on
behalf of the Certificateholders and the Trustee, in its own name, when the
Servicer believes it appropriate in its best judgment to register any Mortgage
Loan on the MERS(R) System, or cause the removal from the registration of any
Mortgage Loan on the MERS(R) System, to execute and deliver, on behalf of the
Trustee and the Certificateholders or any of them, any and all instruments of
assignment and other comparable instruments with respect to such assignment or
re-recording of a Mortgage in the name of MERS, solely as nominee for the
Trustee and its successors and assigns.

      In accordance with and to the extent of the Servicing Standard, the
Servicer shall advance funds necessary to effect the payment of taxes and
assessments on the Mortgaged Properties, which advances shall be reimbursable
in the first instance from related collections from the Mortgagors pursuant to
Section 3.07, and further as provided in Section 3.09. The costs incurred by
the Servicer in effecting the timely payments of taxes and assessments on the
Mortgaged Properties and related insurance premiums shall not, for the purpose
of calculating monthly distributions to the Certificateholders, be added to the
Stated Principal Balances of the related Mortgage Loans, notwithstanding that
the Mortgage Loans so permit.

      Nothing in this Agreement to the contrary shall limit the Servicer from
undertaking any legal action that it may deem appropriate with respect to the
Mortgage Loans including, without limitation, any rights or causes of action
arising out of the origination of the Mortgage Loans.


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<PAGE>

      Section 3.02. [Reserved].

      Section 3.03. Rights of the Depositor and the Trustee in Respect of the
Servicer.

      The Depositor may, but is not obligated to, enforce the obligations of
the Servicer under this Agreement and may, but is not obligated to, perform, or
cause a designee to perform, any defaulted obligation of the Servicer under
this Agreement and in connection with any such defaulted obligation to exercise
the related rights of the Servicer under this Agreement; provided that the
Servicer shall not be relieved of any of its obligations under this Agreement
by virtue of such performance by the Depositor or its designee. Neither the
Trustee nor the Depositor shall have any responsibility or liability for any
action or failure to act by the Servicer nor shall the Trustee or the Depositor
be obligated to supervise the performance of the Servicer under this Agreement
or otherwise.

      Section 3.04. [Reserved].

      Section 3.05. Trustee to Act as Servicer.

      If the Servicer for any reason is no longer the Servicer under this
Agreement (including because of the occurrence or existence of an Event of
Default), the Trustee or its successor shall assume all of the rights and
obligations of the Servicer under this Agreement arising thereafter (except
that the Trustee shall not be

            (i) liable for losses of the Servicer pursuant to Section 3.10 or
      any acts or omissions of the predecessor Servicer hereunder,

            (ii) obligated to make Advances if it is prohibited from doing so
      by applicable law,

            (iii) obligated to effectuate repurchases or substitutions of
      Mortgage Loans hereunder, including repurchases or substitutions pursuant
      to Section 2.02 or 2.03,

            (iv) responsible for expenses of the Servicer pursuant to Section
      2.03, or

            (v) deemed to have made any representations and warranties of the
      Servicer hereunder). Any assumption shall be subject to Section 7.02.

      Notwithstanding anything else in this Agreement to the contrary, in no
event shall the Trustee be liable for any servicing fee or for any differential
in the amount of the Servicing Fee paid under this Agreement and the amount
necessary to induce any successor Servicer to act as successor Servicer under
this Agreement and the transactions provided for in this Agreement.

      Section 3.06. Collection of Mortgage Loan Payments; Certificate Account;
Distribution Account.

      (a) In accordance with and to the extent of the Servicing Standard, the
Servicer shall make reasonable efforts in accordance with the customary and
usual standards of practice of prudent mortgage servicers to collect all
payments called for under the Mortgage Loans to the extent the procedures are
consistent with this Agreement and any related Required Insurance Policy.
Consistent with the foregoing, the Servicer may in its discretion (i) waive any
late payment charge or, subject to Section 3.21, any Prepayment Charge in
connection with the prepayment of a Mortgage Loan and (ii) extend the due dates
for payments due on a Delinquent Mortgage Loan for a period not greater than
125 days. In connection with a seriously delinquent or defaulted Mortgage Loan,
the Servicer may, consistent with the Servicing


                                      58
<PAGE>

Standard, waive, modify or vary any term of that Mortgage Loan (including
modifications that change the Mortgage Rate, forgive the payment of principal
or interest or extend the final maturity date of that Mortgage Loan ), accept
payment from the related Mortgagor of an amount less than the Stated Principal
Balance in final satisfaction of that Mortgage Loan, or consent to the
postponement of strict compliance with any such term or otherwise grant
indulgence to any Mortgagor if in the Servicer's determination such waiver,
modification, postponement or indulgence is not materially adverse to the
interests of the Certificateholders (taking into account any estimated loss
that might result absent such action) and is expected to minimize the loss on
such Mortgage Loan; provided, however, the Servicer shall not initiate new
lending to such Mortgagor through the Trust and cannot, except as provided in
the immediately succeeding sentence, extend the maturity of any Mortgage Loan
past the date on which the final payment is due on the latest maturing Mortgage
Loan as of the Cut-off Date. With respect to no more than 5% of the Mortgage
Loans (measured by aggregate Cut-off Date Principal Balance of the Mortgage
Loans), the Servicer may extend the maturity of a Mortgage Loan past the date
on which the final payment is due on the latest maturing Mortgage Loan as of
the Cut-off Date, but in no event more than one year past such date. In the
event of any such arrangement, the Servicer shall make Advances on the related
Mortgage Loan in accordance with Section 4.01 during the scheduled period in
accordance with the amortization schedule of the Mortgage Loan without
modification thereof because of the arrangements. The Servicer shall not be
required to institute or join in litigation with respect to collection of any
payment (whether under a Mortgage, Mortgage Note, or otherwise or against any
public or governmental authority with respect to a taking or condemnation) if
it reasonably believes that enforcing the provision of the Mortgage or other
instrument pursuant to which the payment is required is prohibited by
applicable law. The Servicer shall not have the discretion to sell any
Delinquent or defaulted Mortgage Loan.

      (b) [reserved].

      (c) [reserved].

      (d) The Servicer shall establish and maintain a Certificate Account into
which the Servicer shall deposit on a daily basis (1) within two Business Days
of receipt (in the case of items (i) through (iii) below) and (2) within one
Business Day of receipt (in the case of all other items), except as otherwise
specified herein, the following payments and collections received by it in
respect of Mortgage Loans after the Cut-off Date (other than in respect of
principal and interest due on the Mortgage Loans by the Cut-off Date) and the
following amounts required to be deposited hereunder:

            (i) all payments on account of principal on the Mortgage Loans,
      including Principal Prepayments;

            (ii) all payments on account of interest on the Mortgage Loans, net
      of the Servicing Fee;

            (iii) all Insurance Proceeds, Subsequent Recoveries and Liquidation
      Proceeds, other than proceeds to be applied to the restoration or repair
      of the Mortgaged Property or released to the Mortgagor in accordance with
      the Servicer's normal servicing procedures;

            (iv) any amount required to be deposited by the Servicer pursuant
      to Section 3.06(f) in connection with any losses on Permitted
      Investments;

            (v) any amounts required to be deposited by the Servicer pursuant
      to Sections 3.10 and 3.12;


                                       59
<PAGE>

            (vi) all Purchase Prices from the Servicer or Seller and all
      Substitution Adjustment Amounts;

            (vii) all Advances made by the Servicer pursuant to Section 4.01;

            (viii) any other amounts required to be deposited under this
      Agreement; and

            (ix) all Prepayment Charges collected.

      In addition, with respect to any Mortgage Loan that is subject to a
buydown agreement, on each Due Date for the Mortgage Loan, in addition to the
monthly payment remitted by the Mortgagor, the Servicer shall cause funds to be
deposited into the Certificate Account in an amount required to cause an amount
of interest to be paid with respect to the Mortgage Loan equal to the amount of
interest that has accrued on the Mortgage Loan from the preceding Due Date at
the Mortgage Rate net of the Servicing Fee Rate on that date.

      The foregoing requirements for remittance by the Servicer shall be
exclusive, it being understood and agreed that, without limiting the generality
of the foregoing, payments in the nature of late payment charges or assumption
fees, if collected, need not be remitted by the Servicer. If the Servicer
remits any amount not required to be remitted, it may at any time withdraw that
amount from the Certificate Account, any provision in this Agreement to the
contrary notwithstanding. The withdrawal or direction may be accomplished by
delivering written notice of it to the Trustee or any other institution
maintaining the Certificate Account that describes the amounts deposited in
error in the Certificate Account. The Servicer shall maintain adequate records
with respect to all withdrawals made pursuant to this Section 3.06. All funds
deposited in the Certificate Account shall be held in trust for the
Certificateholders until withdrawn in accordance with Section 3.09.

      (e) The Trustee shall establish and maintain the Distribution Account on
behalf of the Certificateholders. The Trustee shall, promptly upon receipt,
deposit in the Distribution Account and retain in the Distribution Account the
following:

            (i) the aggregate amount remitted by the Servicer to the Trustee
      pursuant to Section 3.09(a);

            (ii) any amount deposited by the Servicer pursuant to Section
       3.06(f) in connection with any losses on Permitted Investments; and

            (iii) any other amounts deposited under this Agreement that are
      required to be deposited in the Distribution Account.

      If the Servicer remits any amount not required to be remitted, it may at
any time direct the Trustee in writing to withdraw that amount from the
Distribution Account, any provision in this Agreement to the contrary
notwithstanding. The direction may be accomplished by delivering an Officer's
Certificate to the Trustee that describes the amounts deposited in error in the
Distribution Account. All funds deposited in the Distribution Account shall be
held by the Trustee in trust for the Certificateholders until disbursed in
accordance with this Agreement or withdrawn in accordance with Section 3.09. In
no event shall the Trustee incur liability for withdrawals from the
Distribution Account at the direction of the Servicer.

      (f) Each institution at which the Certificate Account is maintained shall
invest the funds in such account as directed in writing by the Servicer in
Permitted Investments, which shall mature not later


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<PAGE>

than the second Business Day preceding the related Distribution Account Deposit
Date (except that if the Permitted Investment is an obligation of the
institution that maintains the account, then the Permitted Investment shall
mature not later than the Business Day preceding the Distribution Account
Deposit Date) and which shall not be sold or disposed of before its maturity.
The funds in the Distribution Account shall remain uninvested. All such
Permitted Investments shall be made in the name of the Trustee, for the benefit
of the Certificateholders. All income realized from any such investment of
funds on deposit in the Certificate Account shall be for the benefit of the
Servicer as servicing compensation and shall be remitted to it monthly as
provided in this Agreement. The amount of any realized losses on Permitted
Investments in the Certificate Account shall promptly be deposited by the
Servicer in the Certificate Account. The Trustee shall not be liable for the
amount of any loss incurred in respect of any investment or lack of investment
of funds held in the Certificate Account and made in accordance with this
Section 3.06.

      (g) [Reserved]

      (h) The Servicer shall give notice to the Trustee, the Seller, each
Rating Agency and the Depositor of any proposed change of the location of the
Certificate Account not later than 30 days and not more than 45 days prior to
any change of this Agreement. The Trustee shall give notice to the Servicer,
the Seller, each Rating Agency and the Depositor of any proposed change of the
location of the Distribution Account not later than 30 days and not more than
45 days prior to any change of this Agreement.

      Section 3.07. Collection of Taxes, Assessments and Similar Items; Escrow
Accounts.

      (a) To the extent required by the related Mortgage Note and not violative
of current law, the Servicer shall establish and maintain one or more accounts
(each, an "Escrow Account") and deposit and retain therein all collections from
the Mortgagors (or advances) for the payment of taxes, assessments, hazard
insurance premiums or comparable items for the account of the Mortgagors.
Nothing herein shall require the Servicer to compel a Mortgagor to establish an
Escrow Account in violation of applicable law.

      (b) Withdrawals of amounts so collected from the Escrow Accounts may be
made only to effect timely payment of taxes, assessments, hazard insurance
premiums, condominium or PUD association dues, or comparable items, to
reimburse (without duplication) the Servicer out of related collections for any
payments made pursuant to Section 3.01 (with respect to taxes and assessments
and insurance premiums) and Section 3.10 (with respect to hazard insurance), to
refund to any Mortgagors any sums determined to be overages, to pay interest,
if required by law or the related Mortgage or Mortgage Note, to Mortgagors on
balances in the Escrow Account or to clear and terminate the Escrow Account at
the termination of this Agreement in accordance with Section 9.01. The Escrow
Accounts shall not be a part of the Trust Fund.

      (c) The Servicer shall advance any payments referred to in Section
3.07(a) that are not timely paid by the Mortgagors or advanced by the Servicer
on the date when the tax, premium or other cost for which such payment is
intended is due, but the Servicer shall be required so to advance only to the
extent that such advances, in the good faith judgment of the Servicer, will be
recoverable by the Servicer out of Insurance Proceeds, Liquidation Proceeds or
otherwise.

      Section 3.08. Access to Certain Documentation and Information Regarding
the Mortgage Loans.

      The Servicer shall afford the Depositor and the Trustee reasonable access
to all records and documentation regarding the Mortgage Loans and all accounts,
insurance information and other matters


                                       61
<PAGE>

relating to this Agreement, such access being afforded without charge, but only
upon reasonable request and during normal business hours at the office
designated by the Servicer.

      Upon reasonable advance notice in writing, the Servicer will provide to
each Certificateholder or Certificate Owner that is a savings and loan
association, bank, or insurance company certain reports and reasonable access
to information and documentation regarding the Mortgage Loans sufficient to
permit the Certificateholder or Certificate Owner to comply with applicable
regulations of the OTS or other regulatory authorities with respect to
investment in the Certificates. The Servicer shall be entitled to be reimbursed
by each such Certificateholder or Certificate Owner for actual expenses
incurred by the Servicer in providing the reports and access.

      Section 3.09. Permitted Withdrawals from the Certificate Account and the
Distribution Account.

      (a) The Servicer may (and, in the case of clause (ix) below, shall) from
time to time make withdrawals from the Certificate Account for the following
purposes:

            (i) to pay to the Servicer (to the extent not previously retained)
      the servicing compensation to which it is entitled pursuant to Section
      3.15, and to pay to the Servicer, as additional master servicing
      compensation, earnings on or investment income with respect to funds in
      or credited to the Certificate Account;

            (ii) to reimburse the Servicer or successor Servicer for the
      unreimbursed Advances made by it, such right of reimbursement pursuant to
      this subclause (ii) being limited to amounts received on the Mortgage
      Loans in respect of which the Advance was made;

            (iii) to reimburse the Servicer or successor Servicer for any
      Nonrecoverable Advance previously made by it;

            (iv) to reimburse the Servicer for Insured Expenses from the
      related Insurance Proceeds;

            (v) to reimburse the Servicer for (a) unreimbursed Servicing
      Advances, the Servicer's right to reimbursement pursuant to this clause
      (a) with respect to any Mortgage Loan being limited to amounts received
      on the Mortgage Loans that represent late recoveries of the payments for
      which the advances were made pursuant to Section 3.01 or Section 3.07,
      (b) unreimbursed Servicing Advances made in respect of a Mortgage Loan
      for which such Servicing Advances are no recoverable from the Mortgagor
      and (c) for unpaid Servicing Fees as provided in Section 3.12;

            (vi) to pay to the purchaser, with respect to each Mortgage Loan or
      property acquired in respect of such Mortgage Loan that has been
      purchased pursuant to Section 2.02, 2.03, or 3.12, all amounts received
      thereon after the date of such purchase;

            (vii) to reimburse the Seller, the Servicer, or the Depositor for
      expenses incurred by any of them and reimbursable pursuant to Section
      6.03;

             (viii) to withdraw any amount deposited in the Certificate Account
      and not required to be deposited in the Certificate Account;


                                      62
<PAGE>

            (ix) by the Distribution Account Deposit Date, to withdraw (1) the
      Available Funds and the Trustee Fee for the Distribution Date, to the
      extent on deposit, and (2) the Prepayment Charges on deposit, and remit
      such amount to the Trustee for deposit in the Distribution Account; and

            (x) to clear and terminate the Certificate Account upon termination
      of this Agreement pursuant to Section 9.01.

      The Servicer shall keep and maintain separate accounting, on a Mortgage
Loan by Mortgage Loan basis, to justify any withdrawal from the Certificate
Account pursuant to subclauses (i), (ii), (iv), (v) and (vi). Before making any
withdrawal from the Certificate Account pursuant to subclause (iii), the
Servicer shall deliver to the Trustee an Officer's Certificate of a Servicing
Officer indicating the amount of any previous Advance determined by the
Servicer to be a Nonrecoverable Advance and identifying the related Mortgage
Loans and their respective portions of the Nonrecoverable Advance.

      (b) The Trustee shall withdraw funds from the Distribution Account for
distributions to Certificateholders in the manner specified in this Agreement
(and to withhold from the amounts so withdrawn the amount of any taxes that it
is authorized to withhold pursuant to the last paragraph of Section 8.11). In
addition, the Trustee may from time to time make withdrawals from the
Distribution Account for the following purposes:

            (i) to pay to itself the Trustee Fee for the related Distribution
      Date;

            (ii) to withdraw and return to the Servicer any amount deposited in
      the Distribution Account and not required to be deposited therein; and

            (iii) to clear and terminate the Distribution Account upon
      termination of the Agreement pursuant to Section 9.01.

       Section 3.10. Maintenance of Hazard Insurance; Maintenance of Primary
Insurance Policies.

      (a) The Servicer shall maintain, for each Mortgage Loan, hazard insurance
with extended coverage in an amount that is at least equal to the lesser of

             (i) the maximum insurable value of the improvements securing the
      Mortgage Loan and

            (ii) the greater of (y) the outstanding principal balance of the
      Mortgage Loan and (z) an amount such that the proceeds of the policy are
       sufficient to prevent the Mortgagor or the mortgagee from becoming a
      co-insurer.

      Each policy of standard hazard insurance shall contain, or have an
accompanying endorsement that contains, a standard mortgagee clause. Any
amounts collected under the policies (other than the amounts to be applied to
the restoration or repair of the related Mortgaged Property or amounts released
to the Mortgagor in accordance with the Servicer's normal servicing procedures)
shall be deposited in the Certificate Account. Any cost incurred in maintaining
any insurance shall not, for the purpose of calculating monthly distributions
to the Certificateholders or remittances to the Trustee for their benefit, be
added to the principal balance of the Mortgage Loan, notwithstanding that the
Mortgage Loan so permits. Such costs shall be recoverable by the Servicer out
of late payments by the related Mortgagor or out of Liquidation Proceeds to the
extent permitted by Section 3.09. No earthquake or other additional


                                       63
<PAGE>

insurance is to be required of any Mortgagor or maintained on property acquired
in respect of a Mortgage other than pursuant to any applicable laws and
regulations in force that require additional insurance. If the Mortgaged
Property is located at the time of origination of the Mortgage Loan in a
federally designated special flood hazard area and the area is participating in
the national flood insurance program, the Servicer shall maintain flood
insurance for the Mortgage Loan. The flood insurance shall be in an amount
equal to the least of (i) the original principal balance of the related
Mortgage Loan, (ii) the replacement value of the improvements that are part of
the Mortgaged Property, and (iii) the maximum amount of flood insurance
available for the related Mortgaged Property under the national flood insurance
program.

      If the Servicer obtains and maintains a blanket policy insuring against
hazard losses on all of the Mortgage Loans, it shall have satisfied its
obligations in the first sentence of this Section 3.10. The policy may contain
a deductible clause on terms substantially equivalent to those commercially
available and maintained by comparable servicers. If the policy contains a
deductible clause and a policy complying with the first sentence of this
Section 3.10 has not been maintained on the related Mortgaged Property, and if
a loss that would have been covered by the required policy occurs, the Servicer
shall deposit in the Certificate Account, without any right of reimbursement,
the amount not otherwise payable under the blanket policy because of the
deductible clause. In connection with its activities as Servicer of the
Mortgage Loans, the Servicer agrees to present, on behalf of itself, the
Depositor, and the Trustee for the benefit of the Certificateholders, claims
under any blanket policy.

      (b) The Servicer shall not take any action that would result in
non-coverage under any applicable Primary Insurance Policy of any loss that,
but for the actions of the Servicer, would have been covered thereunder. The
Servicer shall not cancel or refuse to renew any Primary Insurance Policy that
is in effect at the date of the initial issuance of the Certificates and is
required to be kept in force hereunder unless the replacement Primary Insurance
Policy for the canceled or non-renewed policy is maintained with a Qualified
Insurer. The Servicer need not maintain any Primary Insurance Policy if
maintaining the Primary Insurance Policy is prohibited by applicable law. The
Servicer agrees, to the extent permitted by applicable law, to effect the
timely payment of the premiums on each Primary Insurance Policy, and any costs
not otherwise recoverable shall be recoverable by the Servicer from the related
liquidation proceeds.

      In connection with its activities as Servicer of the Mortgage Loans, the
Servicer agrees to present, on behalf of itself, the Trustee and the
Certificateholders, claims to the insurer under any Primary Insurance Policies
and, in this regard, to take any reasonable action in accordance with the
Servicing Standard necessary to permit recovery under any Primary Insurance
Policies respecting defaulted Mortgage Loans. Any amounts collected by the
Servicer under any Primary Insurance Policies shall be deposited in the
Certificate Account.

      Section 3.11. Enforcement of Due-On-Sale Clauses; Assumption Agreements.

      (a) Except as otherwise provided in this Section 3.11, when any property
subject to a Mortgage has been conveyed by the Mortgagor, the Servicer shall to
the extent that it has knowledge of the conveyance and in accordance with the
Servicing Standard, enforce any due-on-sale clause contained in any Mortgage
Note or Mortgage, to the extent permitted under applicable law and governmental
regulations, but only to the extent that enforcement will not adversely affect
or jeopardize coverage under any Required Insurance Policy. Notwithstanding the
foregoing, the Servicer is not required to exercise these rights with respect
to a Mortgage Loan if the Person to whom the related Mortgaged Property has
been conveyed or is proposed to be conveyed satisfies the conditions contained
in the Mortgage Note and Mortgage related thereto and the consent of the
mortgagee under the Mortgage Note or Mortgage is not otherwise so required
under the Mortgage Note or Mortgage as a condition to the transfer.


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<PAGE>

      If (i) the Servicer is prohibited by law from enforcing any due-on-sale
clause, (ii) coverage under any Required Insurance Policy would be adversely
affected, (iii) the Mortgage Note does not include a due-on-sale clause, or
(iv) nonenforcement is otherwise permitted hereunder, the Servicer is
authorized, subject to Section 3.11(b), to take or enter into an assumption and
modification agreement from or with the person to whom the property has been or
is about to be conveyed, pursuant to which the person becomes liable under the
Mortgage Note and, unless prohibited by applicable state law, the Mortgagor
remains liable thereon. The Mortgage Loan must continue to be covered (if so
covered before the Servicer enters into the agreement) by the applicable
Required Insurance Policies.

      The Servicer, subject to Section 3.11(b), is also authorized with the
prior approval of the insurers under any Required Insurance Policies to enter
into a substitution of liability agreement with the Person, pursuant to which
the original Mortgagor is released from liability and the Person is substituted
as Mortgagor and becomes liable under the Mortgage Note. Notwithstanding the
foregoing, the Servicer shall not be deemed to be in default under this Section
3.11 because of any transfer or assumption that the Servicer reasonably
believes it is restricted by law from preventing, for any reason whatsoever.

      (b) Subject to the Servicer's duty to enforce any due-on-sale clause to
the extent set forth in Section 3.11(a), in any case in which a Mortgaged
Property has been conveyed to a Person by a Mortgagor, and the Person is to
enter into an assumption agreement or modification agreement or supplement to
the Mortgage Note or Mortgage that requires the signature of the Trustee, or if
an instrument of release signed by the Trustee is required releasing the
Mortgagor from liability on the Mortgage Loan, the Servicer shall prepare and
deliver to the Trustee for signature and shall direct the Trustee, in writing,
to execute the assumption agreement with the Person to whom the Mortgaged
Property is to be conveyed, and the modification agreement or supplement to the
Mortgage Note or Mortgage or other instruments appropriate to carry out the
terms of the Mortgage Note or Mortgage or otherwise to comply with any
applicable laws regarding assumptions or the transfer of the Mortgaged Property
to the Person. In connection with any such assumption, no material term of the
Mortgage Note may be changed.

      In addition, the substitute Mortgagor and the Mortgaged Property must be
acceptable to the Servicer in accordance with its underwriting standards as
then in effect. Together with each substitution, assumption, or other agreement
or instrument delivered to the Trustee for execution by it, the Servicer shall
deliver an Officer's Certificate signed by a Servicing Officer stating that the
requirements of this subsection have been met in connection with such Officer's
Certificate. The Servicer shall notify the Trustee that any substitution or
assumption agreement has been completed by forwarding to the Trustee the
original of the substitution or assumption agreement, which in the case of the
original shall be added to the related Mortgage File and shall, for all
purposes, be considered a part of the Mortgage File to the same extent as all
other documents and instruments constituting a part of the Mortgage File. The
Servicer will retain any fee collected by it for entering into an assumption or
substitution of liability agreement as additional servicing compensation.

      Section 3.12. Realization Upon Defaulted Mortgage Loans.

      The Servicer shall use reasonable efforts in accordance with the
Servicing Standard to foreclose on or otherwise comparably convert the
ownership of assets securing such of the Mortgage Loans as come into and
continue in default and as to which no satisfactory arrangements can be made
for collection of delinquent payments. In connection with the foreclosure or
other conversion, the Servicer shall follow the Servicing Standard and shall
follow the requirements of the insurer under any Required Insurance Policy. The
Servicer shall not be required to expend its own funds in connection with any
foreclosure or towards the restoration of any property unless it determines (i)
that the restoration or foreclosure will increase the proceeds of liquidation
of the Mortgage Loan after reimbursement to itself of restoration


                                      65
<PAGE>

expenses and (ii) that restoration expenses will be recoverable to it through
Liquidation Proceeds (respecting which it shall have priority for purposes of
withdrawals from the Certificate Account). The Servicer shall be responsible
for all other costs and expenses incurred by it in any foreclosure proceedings.
The Servicer is entitled to reimbursement of such costs and expenses from the
liquidation proceeds with respect to the related Mortgaged Property, as
provided in the definition of Liquidation Proceeds. If the Servicer has
knowledge that a Mortgaged Property that the Servicer is contemplating
acquiring in foreclosure or by deed in lieu of foreclosure is located within a
one mile radius of any site listed in the Expenditure Plan for the Hazardous
Substance Clean Up Bond Act of 1984 or other site with environmental or
hazardous waste risks known to the Servicer, the Servicer will, before
acquiring the Mortgaged Property, consider the risks and only take action in
accordance with its established environmental review procedures.

      With respect to any REO Property, the deed or certificate of sale shall
be taken in the name of the Trustee for the benefit of the Certificateholders,
or its nominee, on behalf of the Certificateholders. The Trustee's name shall
be placed on the title to the REO Property solely as the Trustee hereunder and
not in its individual capacity. The Servicer shall ensure that the title to the
REO Property references the Pooling and Servicing Agreement and the Trustee's
capacity hereunder. Pursuant to its efforts to sell the REO Property, the
Servicer shall either itself or through an agent selected by the Servicer
protect and conserve the REO Property in accordance with the Servicing
Standard.

      The Servicer shall perform the tax reporting and withholding required by
sections 1445 and 6050J of the Code with respect to foreclosures and
abandonments, the tax reporting required by section 6050H of the Code with
respect to the receipt of mortgage interest from individuals and, if required
by section 6050P of the Code with respect to the cancellation of indebtedness
by certain financial entities, by preparing any required tax and information
returns, in the form required.

      If the Trust Fund acquires any Mortgaged Property as aforesaid or
otherwise in connection with a default or imminent default on a Mortgage Loan,
the REO Property shall only be held temporarily, shall be actively marketed for
sale, and the Servicer shall dispose of the Mortgaged Property as soon as
practicable, and in any case before the end of the third calendar year
following the calendar year in which the Trust Fund acquires the property.
Notwithstanding any other provision of this Agreement, no Mortgaged Property
acquired by the Trust Fund shall be rented (or allowed to continue to be
rented) or otherwise used for the production of income by or on behalf of the
Trust Fund.

      The decision of the Servicer to foreclose on a defaulted Mortgage Loan
shall be subject to a determination by the Servicer that the proceeds of the
foreclosure would exceed the costs and expenses of bringing a foreclosure
proceeding. The proceeds received from the maintenance of any REO Properties,
net of reimbursement to the Servicer for costs incurred (including any property
or other taxes) in connection with maintenance of the REO Properties and net of
unreimbursed Servicing Fees, Advances, and Servicing Advances, shall be applied
to the payment of principal of and interest on the related defaulted Mortgage
Loans (with interest accruing as though the Mortgage Loans were still current
and adjustments, if applicable, to the Mortgage Rate were being made in
accordance with the Mortgage Note) and all such proceeds shall be deemed, for
all purposes in this Agreement, to be payments on account of principal and
interest on the related Mortgage Notes and shall be deposited into the
Certificate Account. To the extent the net proceeds received during any
calendar month exceeds the amount attributable to amortizing principal and
accrued interest at the related Mortgage Rate on the related Mortgage Loan for
the calendar month, the excess shall be considered to be a partial prepayment
of principal of the related Mortgage Loan.

      The proceeds from any liquidation of a Mortgage Loan, as well as any
proceeds from an REO Property, will be applied in the following order of
priority: first, to reimburse the Servicer for any related


                                       66
<PAGE>

unreimbursed Servicing Advances or Servicing Fees or for any related
unreimbursed Advances, as applicable; second, to reimburse the Servicer, as
applicable, and to reimburse the Certificate Account for any Nonrecoverable
Advances (or portions thereof) that were previously withdrawn by the Servicer
pursuant to Section 3.09(a)(iii) that related to the Mortgage Loan; third, to
accrued and unpaid interest (to the extent no Advance has been made for such
amount or any such Advance has been reimbursed) on the Mortgage Loan or related
REO Property, at the Adjusted Net Mortgage Rate to the Due Date occurring in
the month in which such amounts are required to be distributed; and fourth, as
a recovery of principal of the Mortgage Loan. The Servicer will retain any
Excess Proceeds from the liquidation of a Liquidated Mortgage Loan as
additional servicing compensation pursuant to Section 3.15.

      The Servicer may agree to a modification of any Mortgage Loan at the
request of the related Mortgagor if (i) the modification is in lieu of a
refinancing and (ii) the Servicer purchases that Mortgage Loan from the Trust
Fund as described below. Upon the agreement of the Servicer to modify a
Mortgage Loan in accordance with the preceding sentence, the Servicer shall
purchase that Mortgage Loan and all interest of the Trustee in that Mortgage
Loan shall automatically be deemed transferred and assigned to the Servicer and
all benefits and burdens of ownership thereof, including the right to accrued
interest thereon from the date of purchase and the risk of default thereon,
shall pass to the Servicer. The Servicer shall promptly deliver to the Trustee
a certification of a Servicing Officer to the effect that all requirements of
this paragraph have been satisfied with respect to a Mortgage Loan to be
repurchased pursuant to this paragraph.

      The Servicer shall deposit the Purchase Price for any Mortgage Loan
repurchased pursuant to Section 3.12 in the Certificate Account pursuant to
Section 3.06 within one Business Day after the purchase of the Mortgage Loan.
Upon receipt by the Trustee of written notification of any such deposit signed
by a Servicing Officer, the Trustee shall release to the Servicer the related
Mortgage File and shall execute and deliver such instruments of transfer or
assignment, in each case without recourse, as shall be necessary to vest in the
Servicer any Mortgage Loan previously transferred and assigned pursuant hereto.
The Servicer covenants and agrees to indemnify the Trust Fund against any
liability for any "prohibited transaction" taxes and any related interest,
additions, and penalties imposed on the Trust Fund established hereunder as a
result of any modification of a Mortgage Loan effected pursuant to this
Section, or any purchase of a Mortgage Loan by the Servicer in connection with
a modification (but such obligation shall not prevent the Servicer or any other
appropriate Person from contesting any such tax in appropriate proceedings and
shall not prevent the Servicer from withholding payment of such tax, if
permitted by law, pending the outcome of such proceedings). The Servicer shall
have no right of reimbursement for any amount paid pursuant to the foregoing
indemnification, except to the extent that the amount of any tax, interest, and
penalties, together with interest thereon, is refunded to the Trust Fund.

      Section 3.13. Trustee to Cooperate; Release of Mortgage Files.

      Upon the payment in full of any Mortgage Loan, or the receipt by the
Servicer of a notification that payment in full will be escrowed in a manner
customary for such purposes, the Servicer will immediately notify the Trustee
by delivering a Request for Release substantially in the form of Exhibit N.
Upon receipt of the request, the Trustee shall promptly release the related
Mortgage File to the Servicer, and the Trustee shall at the Servicer's
direction execute and deliver to the Servicer the request for reconveyance,
deed of reconveyance, or release or satisfaction of mortgage or such instrument
releasing the lien of the Mortgage in each case provided by the Servicer,
together with the Mortgage Note with written evidence of cancellation thereon.
The Servicer is authorized to cause the removal from the registration on the
MERS System of such Mortgage and to execute and deliver, on behalf of the
Trustee and the Certificateholders or any of them, any and all instruments of
satisfaction or cancellation or of partial or full release. Expenses incurred
in connection with any instrument of satisfaction or deed of reconveyance shall
be chargeable to the related Mortgagor.


                                      67
<PAGE>

      From time to time and as shall be appropriate for the servicing or
foreclosure of any Mortgage Loan, including for such purpose collection under
any policy of flood insurance, any fidelity bond or errors or omissions policy,
or for the purposes of effecting a partial release of any Mortgaged Property
from the lien of the Mortgage or the making of any corrections to the Mortgage
Note or the Mortgage or any of the other documents included in the Mortgage
File, the Trustee shall, upon delivery to the Trustee of a Request for Release
in the form of Exhibit M signed by a Servicing Officer, release the Mortgage
File to the Servicer or its designee. Subject to the further limitations set
forth below, the Servicer shall cause the Mortgage File or documents so
released to be returned to the Trustee when the need therefor by the Servicer
no longer exists, unless the Mortgage Loan is liquidated and the proceeds
thereof are deposited in the Certificate Account, in which case the Servicer
shall deliver to the Trustee a Request for Release in the form of Exhibit N,
signed by a Servicing Officer.

      If the Servicer at any time seeks to initiate a foreclosure proceeding in
respect of any Mortgaged Property as authorized by this Agreement, the Servicer
shall deliver to the Trustee, for signature, as appropriate, any court
pleadings, requests for trustee's sale, or other documents necessary to
effectuate such foreclosure or any legal action brought to obtain judgment
against the Mortgagor on the Mortgage Note or the Mortgage or to obtain a
deficiency judgment or to enforce any other remedies or rights provided by the
Mortgage Note or the Mortgage or otherwise available at law or in equity.

      Section 3.14. Documents, Records and Funds in Possession of the Servicer
to be Held for the Trustee.

      The Servicer shall account fully to the Trustee for any funds it receives
or otherwise collects as Liquidation Proceeds or Insurance Proceeds in respect
of any Mortgage Loan. All Mortgage Files and funds collected or held by, or
under the control of, the Servicer in respect of any Mortgage Loans, whether
from the collection of principal and interest payments or from Liquidation
Proceeds, including any funds on deposit in the Certificate Account, shall be
held by the Servicer for and on behalf of the Trustee and shall be and remain
the sole and exclusive property of the Trustee, subject to the applicable
provisions of this Agreement. The Servicer also agrees that it shall not
create, incur or sub


 
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