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POOLING AND SERVICING AGREEMENT

Pooling and Servicing Agreement

POOLING AND SERVICING AGREEMENT | Document Parties: MORGAN STANLEY CAPITAL I INC | JPMORGAN CHASE BANK, NATIONAL ASSOCIATION | WMC MORTGAGE CORP | DECISION ONE MORTGAGE COMPANY, LLC | WELLS FARGO BANK, NATIONAL ASSOCIATION | LASALLE BANK NATIONAL ASSOCIATION You are currently viewing:
This Pooling and Servicing Agreement involves

MORGAN STANLEY CAPITAL I INC | JPMORGAN CHASE BANK, NATIONAL ASSOCIATION | WMC MORTGAGE CORP | DECISION ONE MORTGAGE COMPANY, LLC | WELLS FARGO BANK, NATIONAL ASSOCIATION | LASALLE BANK NATIONAL ASSOCIATION

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Title: POOLING AND SERVICING AGREEMENT
Governing Law: New York     Date: 3/23/2006
Law Firm: Chase Home Finance LLC    

POOLING AND SERVICING AGREEMENT, Parties: morgan stanley capital i inc , jpmorgan chase bank  national association , wmc mortgage corp , decision one mortgage company  llc , wells fargo bank  national association , lasalle bank national association
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                                                                       EXHIBIT 4

                         MORGAN STANLEY CAPITAL I INC.,
                                   Depositor,

                   JPMORGAN CHASE BANK, NATIONAL ASSOCIATION,
                                     Servicer,

                               WMC MORTGAGE CORP.,

                               Responsible Party,

                       DECISION ONE MORTGAGE COMPANY, LLC,

                               Responsible Party,

                      WELLS FARGO BANK, NATIONAL ASSOCIATION,
                                     Trustee

                                       and

                       LASALLE BANK NATIONAL ASSOCIATION,
                                    Custodian

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

                          POOLING AND SERVICING AGREEMENT

                           Dated as of February 1, 2006

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

                  MORGAN STANLEY CAPITAL I INC. TRUST 2006-HE1

                       MORTGAGE PASS-THROUGH CERTIFICATES,
                                 SERIES 2006-HE1

<PAGE>

                                TABLE OF CONTENTS

                                    ARTICLE I

                                    DEFINITIONS

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                         REPRESENTATIONS AND WARRANTIES

Section 2.01    Conveyance of Mortgage Loans.................................
Section 2.02    Acceptance by the Trustee of the Mortgage Loans..............
Section 2.03    Representations and Warranties; Remedies for Breaches of
               Representations and Warranties with Respect to the Mortgage
                Loans........................................................
Section 2.04    Execution and Delivery of Certificates.......................
Section 2.05    REMIC Matters................................................
Section 2.06    Representations and Warranties of the Depositor..............

                                   ARTICLE III

                          ADMINISTRATION AND SERVICING
                                OF MORTGAGE LOANS

Section 3.01    Servicer to Service Mortgage Loans...........................
Section 3.02    Subservicing Agreements between the Servicer and
               Subservicers.................................................
Section 3.03    Successor Subservicers.......................................
Section 3.04    Liability of the Servicer....................................
Section 3.05    No Contractual Relationship between Subservicers and the
               Trustee......................................................
Section 3.06    Assumption or Termination of Subservicing Agreements
               by Trustee...................................................
Section 3.07    Collection of Certain Mortgage Loan Payments.................
Section 3.08    Subservicing Accounts........................................
Section 3.09    Collection of Taxes, Assessments and Similar Items; Escrow
               Accounts.....................................................
Section 3.10    Collection Account...........................................
Section 3.11    Withdrawals from the Collection Account......................
Section 3.12    Investment of Funds in the Collection Account and the
               Distribution Account.........................................
Section 3.13    Maintenance of Hazard Insurance and Errors and Omissions and
               Fidelity Coverage............................................
Section 3.14    Enforcement of Due-on-Sale Clauses; Assumption Agreements....
Section 3.15    Realization upon Defaulted Mortgage Loans....................
Section 3.16    Release of Mortgage Files....................................
Section 3.17    Title, Conservation and Disposition of REO Property..........
Section 3.18    Notification of Adjustments..................................
Section 3.19    Access to Certain Documentation and Information Regarding
               the Mortgage Loans...........................................
Section 3.20    Documents, Records and Funds in Possession of the Servicer
               to Be Held for the Trustee...................................
Section 3.21    Servicing Compensation.......................................
Section 3.22    Annual Statement as to Compliance............................
Section 3.23    Annual Reports on Assessment of Compliance with Servicing
               Criteria; Annual Independent Public Accountants' Attestation
               Report.......................................................
Section 3.24    Trustee to Act as Servicer...................................
Section 3.25    Compensating Interest........................................
Section 3.26    Credit Reporting; Gramm-Leach-Bliley Act.....................

                                   ARTICLE IV

                                DISTRIBUTIONS AND
                            ADVANCES BY THE SERVICER

Section 4.01    Advances.....................................................
Section 4.02    Priorities of Distribution...................................
Section 4.03    Monthly Statements to Certificateholders.....................
Section 4.04    Certain Matters Relating to the Determination of LIBOR.......
Section 4.05    Allocation of Applied Realized Loss Amounts..................
Section 4.06    Swap Account.................................................

                                    ARTICLE V

                                THE CERTIFICATES

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

                                   ARTICLE VI

                         THE DEPOSITOR AND THE SERVICER

Section 6.01    Respective Liabilities of the Depositor and the Servicer.....
Section 6.02    Merger or Consolidation of the Depositor or the Servicer.....
Section 6.03    Limitation on Liability of the Depositor, the Servicer and
               Others.......................................................
Section 6.04    Limitation on Resignation of the Servicer....................
Section 6.05    Additional Indemnification by the Servicer;
               Third-Party Claims...........................................

                                   ARTICLE VII

                                      DEFAULT

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

                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01    Duties of the Trustee........................................
Section 8.02    Certain Matters Affecting the Trustee and the Custodian......
Section 8.03    Trustee Not Liable for Certificates or Mortgage Loans........
Section 8.04    Trustee May Own Certificates.................................
Section 8.05    Trustee's Fees and Expenses..................................
Section 8.06    Eligibility Requirements for the Trustee.....................
Section 8.07    Resignation and Removal of the Trustee.......................
Section 8.08    Successor Trustee............................................
Section 8.09    Merger or Consolidation of the Trustee.......................
Section 8.10    Appointment of Co-Trustee or Separate Trustee................
Section 8.11    Tax Matters..................................................
Section 8.12    Periodic Filings.............................................
Section 8.13    Tax Treatment of Upper-Tier CarryForward Amounts, Basis Risk
               CarryForward Amounts and Class IO Shortfalls; Tax
               Classification of the Excess Reserve Fund Account, Swap
               Account and the Interest Rate Swap Agreement.................
Section 8.14    Custodial Responsibilities...................................

                                   ARTICLE IX

                                   TERMINATION

Section 9.01    Termination upon Liquidation or Purchase of the
               Mortgage Loans...............................................
Section 9.02    Final Distribution on the Certificates.......................
Section 9.03    Additional Termination Requirements..........................

                                     ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01   Amendment....................................................
Section 10.02   Recordation of Agreement; Counterparts.......................
Section 10.03   Governing Law................................................
Section 10.04   Intention of Parties.........................................
Section 10.05   Notices......................................................
Section 10.06   Severability of Provisions...................................
Section 10.07   Assignment; Sales; Advance Facilities........................
Section 10.08   Limitation on Rights of Certificateholders...................
Section 10.09   Inspection and Audit Rights..................................
Section 10.10   Certificates Nonassessable and Fully Paid....................
Section 10.11   Rule of Construction.........................................
Section 10.12   Waiver of Jury Trial.........................................
Section 10.13   Opinions of Internal Counsel of WMC..........................
Section 10.14   Rights of the Swap Provider..................................
Section 10.15   Regulation AB Compliance; Intent of the Parties;
               Reasonableness...............................................

SCHEDULES

Schedule I         Mortgage Loan Schedule
Schedule II        Representations and Warranties of JPMorgan Chase Bank,
                  National Association, as Servicer
Schedule III       Representations and Warranties of WMC as to the WMC Mortgage
                  Loans
Schedule IV        Representations and Warranties of WMC as to WMC
Schedule V         Representations and Warranties of Morgan Stanley Capital I
                  Inc. as to the Mortgage Loans
Schedule VI        Representations and Warranties of Decision One as to the
                  Decision One Mortgage Loans
Schedule VII       Representations and Warranties of LaSalle, as Custodian

EXHIBITS

Exhibit A       Form of Class A, Class M and Class B Certificate

Exhibit B       Form of Class P Certificate

Exhibit C       Form of Class R Certificate

Exhibit D       Form of Class X Certificate

Exhibit E       Form of Initial Certification of Trustee and Custodian

Exhibit F       Form of Document Certification and Exception Report of Trustee
               and Custodian

Exhibit G       Form of Residual Transfer Affidavit

Exhibit H       Form of Transferor Certificate

Exhibit I       Form of Rule 144A Letter

Exhibit J       Form of Request for Release

Exhibit K        Form of Contents for Each Mortgage File

Exhibit L       Form of Certification to be provided with Form 10-K

Exhibit M       Form of Certification to be provided by the Trustee to Depositor

Exhibit N       Form of Certification to be provided by the Servicer to Depositor

Exhibit O       WMC Purchase Agreement

Exhibit P       Decision One Purchase Agreement

Exhibit Q       Form of Servicer Power of Attorney

Exhibit R       Servicing Criteria

Exhibit S       Additional Form 10-D Disclosure

Exhibit T       Additional Form 10-K Disclosure

Exhibit U       Form 8-K Disclosure Information

Exhibit V       Interest Rate Swap Agreement

Exhibit W       JPMorgan Subservicing Agreement

Exhibit X       Form of Servicer Reports

<PAGE>

            THIS POOLING AND SERVICING AGREEMENT, dated as of February 1, 2006,
among MORGAN STANLEY CAPITAL I INC., a Delaware corporation (the "Depositor"),
JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, a national banking association, as
servicer (the "Servicer"),WMC MORTGAGE CORP., a California corporation, as
responsible party ("WMC"), DECISION ONE MORTGAGE COMPANY, LLC, as responsible
party ("Decision One"), WELLS FARGO BANK, NATIONAL ASSOCIATION, a national
banking association, as trustee (the "Trustee") and LASALLE BANK NATIONAL
ASSOCIATION, as custodian (the "Custodian").

                              W I T N E S S E T H:

            In consideration of the mutual agreements herein contained, the
parties hereto agree as follows:

                              PRELIMINARY STATEMENT

             The Trustee shall elect that four segregated asset pools within the
Trust Fund (exclusive of (i) the Prepayment Premiums, (ii) the Swap Assets,
(iii) the Excess Reserve Fund Account, and (iv) the right of the LIBOR
Certificates to receive Upper-Tier CarryForward Amounts including, but without
duplication, Basis Risk CarryForward Amounts and the obligation to pay Class IO
Shortfalls) be treated for federal income tax purposes as comprising four REMICs
(each, a "Trust REMIC" or, in the alternative, Pooling-Tier REMIC-1,
Pooling-Tier REMIC-2, the Lower-Tier REMIC and the Upper-Tier REMIC,
respectively). The Class X Interest, Class IO Interest and each Class of LIBOR
Certificates (other than the right of each Class of Offered Certificates to
receive Upper-Tier CarryForward Amounts including, but without duplication,
Basis Risk CarryForward Amounts and the obligation to pay Class IO Shortfalls)
represents ownership of a regular interest in a REMIC for purposes of the REMIC
Provisions. The Class R Certificates represent ownership of the sole class of
residual interest in each Trust REMIC for purposes of the REMIC Provisions. The
Startup Day for each Trust REMIC described herein is the Closing Date. The
latest possible maturity date for each regular interest is the latest date
referenced in Section 2.05. The Upper-Tier REMIC shall hold as assets the
several classes of uncertificated Lower-Tier Regular Interests, set out below.
The Lower-Tier REMIC shall hold as assets the several classes of uncertificated
Pooling-Tier REMIC-2 Regular Interests. Pooling-Tier REMIC-2 shall hold as
assets the several classes of uncertificated Pooling-Tier REMIC-1 Regular
Interests. Pooling-Tier REMIC-1 shall hold as assets the assets of the Trust
Fund (exclusive of (i) the Prepayment Premiums, (ii) the Swap Assets, (iii) the
Excess Reserve Fund Account, and (iv) the right of the LIBOR Certificates to
receive Upper-Tier CarryForward Amounts including, but without duplication,
Basis Risk CarryForward Amounts and the obligation to pay Class IO Shortfalls).

            For federal income tax purposes, each Class of LIBOR Certificates
represents a beneficial ownership of a regular interest in the Upper-Tier REMIC,
the right to receive Upper-Tier CarryForward Amounts (including, but without
duplication, Basis Risk CarryForward Amounts), and the obligation to pay Class
IO Shortfalls, the Class X Certificates represent beneficial ownership of the
Class X Interest, the Class IO Interest, the Interest Rate Swap Agreement, the
Swap Account, the Excess Reserve Fund Account and the right to receive Class IO
Shortfalls, and the Class P Certificates represent beneficial ownership of the
Prepayment Premiums, which portions of the Trust Fund shall be treated as a
grantor trust.

                               Pooling-Tier REMIC-1

            Pooling-Tier REMIC-1 shall issue the following interests in
Pooling-Tier REMIC-1, and each such interest, other than the Class PT1-R
Interest is hereby designated as a regular interest in the Pooling-Tier REMIC-1.
Pooling-Tier REMIC-1 shall also issue the Class PT1-R Interest, which is hereby
designated as the sole class of residual interest in Pooling-Tier REMIC-1. The
Class PT1-R Interest shall be represented by the Class R Certificates, shall not
have a principal balance and shall have no interest rate.

                                                   Initial
                                                 Pooling-Tier
Pooling-Tier REMIC-1    Pooling-Tier REMIC-1     REMIC-1 Principal
    Interest                Interest Rate             Amount
----------------------------------------------------------------
Class PT1-1                     (1)               $58,641,729.50
Class PT1-2A                    (2)               $32,946,207.90
Class PT1-2B                     (3)               $32,946,207.90
Class PT1-3A                    (2)               $21,622,806.60
Class PT1-3B                    (3)               $21,622,806.60
Class PT1-4A                    (2)               $21,303,249.85
Class PT1-4B                    (3)               $21,303,249.85
Class PT1-5A                    (2)               $20,097,826.60
Class PT1-5B                    (3)               $20,097,826.60
Class PT1-6A                    (2)               $19,400,293.65
Class PT1-6B                    (3)                $19,400,293.65
Class PT1-7A                    (2)               $18,735,235.55
Class PT1-7B                    (3)               $18,735,235.55
Class PT1-8A                    (2)               $18,100,241.30
Class PT1-8B                    (3)                $18,100,241.30
Class PT1-9A                    (2)               $17,492,995.25
Class PT1-9B                    (3)               $17,492,995.25
Class PT1-10A                   (2)               $16,911,280.30
Class PT1-10B                   (3)                $16,911,280.30
Class PT1-11A                   (2)               $16,352,926.45
Class PT1-11B                   (3)               $16,352,926.45
Class PT1-12A                   (2)               $15,815,423.25
Class PT1-12B                   (3)               $15,815,423.25
Class PT1-13A                   (2)               $15,292,427.80
Class PT1-13B                   (3)               $15,292,427.80
Class PT1-14A                   (2)               $14,768,331.75
Class PT1-14B                   (3)               $14,768,331.75
Class PT1-15A                   (2)               $14,129,686.80
Class PT1-15B                   (3)               $14,129,686.80
Class PT1-16A                   (2)               $13,518,805.10
Class PT1-16B                   (3)               $13,518,805.10
Class PT1-17A                   (2)               $12,934,475.90
Class PT1-17B                   (3)               $12,934,475.90
Class PT1-18A                   (2)               $12,375,536.80
Class PT1-18B                   (3)               $12,375,536.80
Class PT1-19A                   (2)               $11,840,881.15
Class PT1-19B                   (3)               $11,840,881.15
Class PT1-20A                   (2)               $12,255,640.40
Class PT1-20B                   (3)               $12,255,640.40
Class PT1-21A                   (2)               $33,181,934.65
Class PT1-21B                   (3)               $33,181,934.65
Class PT1-22A                   (2)               $167,148,590.55
Class PT1-22B                   (3)               $167,148,590.55
Class PT1-23A                   (2)               $1,835,892.50
Class PT1-23B                   (3)               $1,835,892.50
Class PT1-24A                   (2)               $1,770,419.15
Class PT1-24B                   (3)               $1,770,419.15
Class PT1-25A                   (2)               $1,707,281.70
Class PT1-25B                   (3)               $1,707,281.70
Class PT1-26A                   (2)               $1,646,396.85
Class PT1-26B                   (3)               $1,646,396.85
Class PT1-27A                    (2)               $1,587,686.15
Class PT1-27B                   (3)               $1,587,686.15
Class PT1-28A                   (2)               $1,531,117.95
Class PT1-28B                   (3)               $1,531,117.95
Class PT1-29A                    (2)               $1,476,826.90
Class PT1-29B                   (3)               $1,476,826.90
Class PT1-30A                   (2)               $1,424,144.45
Class PT1-30B                   (3)               $1,424,144.45
Class PT1-31A                   (2)                $1,373,341.65
Class PT1-31B                   (3)               $1,373,341.65
Class PT1-32A                   (2)               $1,353,148.40
Class PT1-32B                   (3)               $1,353,148.40
Class PT1-33A                   (2)                $2,336,536.40
Class PT1-33B                   (3)               $2,336,536.40
Class PT1-34A                   (2)               $4,436,661.95
Class PT1-34B                   (3)               $4,436,661.95
Class PT1-35A                   (2)               $   994,456.85
Class PT1-35B                   (3)               $   994,456.85
Class PT1-36A                   (2)               $   960,765.25
Class PT1-36B                   (3)               $   960,765.25
Class PT1-37A                   (2)               $   928,195.85
Class PT1-37B                   (3)               $   928,195.85
Class PT1-38A                   (2)               $   896,711.90
Class PT1-38B                   (3)               $   896,711.90
Class PT1-39A                   (2)               $   866,278.30
Class PT1-39B                   (3)               $   866,278.30
Class PT1-40A                   (2)               $   836,862.60
Class PT1-40B                   (3)               $   836,862.60
Class PT1-41A                   (2)               $   808,434.70
Class PT1-41B                    (3)               $   808,434.70
Class PT1-42A                   (2)               $   780,949.15
Class PT1-42B                   (3)               $   780,949.15
Class PT1-43A                   (2)               $   754,383.05
Class PT1-43B                    (3)               $   754,383.05
Class PT1-44A                   (2)               $   728,706.30
Class PT1-44B                   (3)               $   728,706.30
Class PT1-45A                   (2)               $   703,889.70
Class PT1-45B                   (3)               $   703,889.70
Class PT1-46A                   (2)               $   679,905.45
Class PT1-46B                   (3)               $   679,905.45
Class PT1-47A                   (2)               $   656,725.50
Class PT1-47B                   (3)                $   656,725.50
Class PT1-48A                   (2)               $   634,323.35
Class PT1-48B                   (3)               $   634,323.35
Class PT1-49A                   (2)               $   612,673.70
Class PT1-49B                   (3)                $   612,673.70
Class PT1-50A                   (2)               $   591,751.70
Class PT1-50B                   (3)               $   591,751.70
Class PT1-51A                   (2)               $   571,533.40
Class PT1-51B                   (3)               $   571,533.40
Class PT1-52A                   (2)               $   551,995.60
Class PT1-52B                   (3)               $   551,995.60
Class PT1-53A                   (2)               $   533,115.75
Class PT1-53B                   (3)               $   533,115.75
Class PT1-54A                   (2)               $   514,872.15
Class PT1-54B                   (3)               $   514,872.15
Class PT1-55A                   (2)               $14,325,609.85
Class PT1-55B                   (3)               $14,325,609.85
Class PT1-R                     (4)                   (4)

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

(1)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the Pooling-Tier
      REMIC-1 WAC Rate.

(2)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the product of
      (i) 2 and (ii) the Pooling-Tier REMIC-1 WAC Rate, subject to a maximum
      rate of 9.9%.

(3)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-1 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-1 Interest Rate") equal to the excess, if
      any, of (A) the product of (i) 2 and (ii) the Pooling-Tier REMIC-1 WAC
      Rate over (B) 9.9%.

(4)    The Class PT1-R Interest shall not have a principal balance and shall not
      bear interest.

            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans for such Distribution Date shall be deemed to be distributed
to the Pooling-Tier REMIC-1 Regular Interests at the rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Mortgage Loans shall be allocated to
the outstanding Pooling-Tier REMIC-1 Regular Interest with the lowest numerical
denomination until the Pooling-Tier REMIC-1 Principal Amount of such interest is
reduced to zero, provided that, with respect to Pooling-Tier REMIC-1 Regular
Interests with the same numerical denomination, such Realized Losses, Subsequent
Recoveries and payments of principal shall be allocated pro rata between such
Pooling-Tier REMIC-1 Regular Interests, until the Pooling-Tier REMIC-1 Principal
Amount of such interests is reduced to zero.

                               Pooling-Tier REMIC-2

            Pooling-Tier REMIC-2 shall issue the following interests in
Pooling-Tier REMIC-2, and each such interest, other than the Class PT2-R
Interest, is hereby designated as a regular interest in Pooling-Tier REMIC-2.
The Class PT2-R Interest is hereby designated as the sole class of residual
interest in Pooling-Tier REMIC-2 and shall be represented by the Class R
Certificates.

<TABLE>
<CAPTION>

                                                                              Corresponding       Corresponding
                   Pooling-Tier       Pooling-Tier         Corresponding        Pooling-Tier          Scheduled
Pooling-Tier           REMIC-2       REMIC-2 Initial        Pooling-Tier        REMIC-1 Regular        Crossover
REMIC-2 Interest    Interest Rate    Principal Amount    REMIC-2 IO Interest       Interest        Distribution Date
---------------------------------------------------------------------------------------------------------------
<S>                 <C>               <C>                 <C>                       <C>             <C>
Class PT2-1                    (1)     $58,641,729.50            N/A                  N/A                 N/A
Class PT2-2A                   (2)     $32,946,207.90      Class PT2-IO-2             N/A                 N/A
Class PT2-2B                   (3)     $32,946,207.90            N/A                  N/A                 N/A
Class PT2-3A                   (2)     $21,622,806.60      Class PT2-IO-3             N/A                 N/A
Class PT2-3B                    (3)     $21,622,806.60            N/A                  N/A                 N/A
Class PT2-4A                   (2)     $21,303,249.85      Class PT2-IO-4             N/A                 N/A
Class PT2-4B                   (3)     $21,303,249.85            N/A                   N/A                 N/A
Class PT2-5A                   (2)     $20,097,826.60      Class PT2-IO-5             N/A                 N/A
Class PT2-5B                   (3)     $20,097,826.60            N/A                  N/A                 N/A
Class PT2-6A                   (2)     $19,400,293.65      Class PT2-IO-6             N/A                 N/A
Class PT2-6B                   (3)     $19,400,293.65            N/A                  N/A                 N/A
Class PT2-7A                   (2)     $18,735,235.55      Class PT2-IO-7             N/A                 N/A
Class PT2-7B                   (3)     $18,735,235.55            N/A                  N/A                 N/A
Class PT2-8A                   (2)     $18,100,241.30      Class PT2-IO-8             N/A                 N/A
Class PT2-8B                   (3)     $18,100,241.30            N/A                  N/A                 N/A
Class PT2-9A                   (2)     $17,492,995.25      Class PT2-IO-9             N/A                 N/A
Class PT2-9B                   (3)     $17,492,995.25            N/A                  N/A                 N/A
Class PT2-10A                  (2)     $16,911,280.30      Class PT2-IO-10            N/A                 N/A
Class PT2-10B                  (3)     $16,911,280.30            N/A                  N/A                  N/A
Class PT2-11A                  (2)     $16,352,926.45      Class PT2-IO-11            N/A                 N/A
Class PT2-11B                  (3)     $16,352,926.45            N/A                  N/A                 N/A
Class PT2-12A                  (2)     $15,815,423.25      Class PT2-IO-12            N/A                 N/A
Class PT2-12B                  (3)     $15,815,423.25            N/A                  N/A                 N/A
Class PT2-13A                  (2)     $15,292,427.80      Class PT2-IO-13             N/A                 N/A
Class PT2-13B                  (3)     $15,292,427.80            N/A                  N/A                 N/A
Class PT2-14A                  (2)     $14,768,331.75      Class PT2-IO-14            N/A                 N/A
Class PT2-14B                   (3)     $14,768,331.75            N/A                  N/A                 N/A
Class PT2-15A                  (2)     $14,129,686.80      Class PT2-IO-15            N/A                 N/A
Class PT2-15B                  (3)     $14,129,686.80            N/A                  N/A                 N/A
Class PT2-16A                  (2)     $13,518,805.10      Class PT2-IO-16            N/A                 N/A
Class PT2-16B                  (3)     $13,518,805.10            N/A                  N/A                 N/A
Class PT2-17A                  (2)     $12,934,475.90      Class PT2-IO-17            N/A                 N/A
Class PT2-17B                  (3)     $12,934,475.90            N/A                  N/A                 N/A
Class PT2-18A                  (2)     $12,375,536.80       Class PT2-IO-18            N/A                 N/A
Class PT2-18B                  (3)     $12,375,536.80            N/A                  N/A                 N/A
Class PT2-19A                  (2)     $11,840,881.15      Class PT2-IO-19            N/A                  N/A
Class PT2-19B                  (3)     $11,840,881.15            N/A                  N/A                 N/A
Class PT2-20A                  (2)     $12,255,640.40      Class PT2-IO-20            N/A                 N/A
Class PT2-20B                  (3)     $12,255,640.40            N/A                  N/A                 N/A
Class PT2-21A                  (2)     $33,181,934.65      Class PT2-IO-21            N/A                 N/A
Class PT2-21B                  (3)     $33,181,934.65            N/A                  N/A                 N/A
Class PT2-22A                  (2)    $167,148,590.55      Class PT2-IO-22            N/A                 N/A
Class PT2-22B                  (3)    $167,148,590.55            N/A                  N/A                 N/A
Class PT2-23A                   (2)      $1,835,892.50      Class PT2-IO-23            N/A                 N/A
Class PT2-23B                  (3)      $1,835,892.50            N/A                  N/A                 N/A
Class PT2-24A                  (2)      $1,770,419.15      Class PT2-IO-24             N/A                 N/A
Class PT2-24B                  (3)      $1,770,419.15            N/A                  N/A                 N/A
Class PT2-25A                  (2)      $1,707,281.70      Class PT2-IO-25            N/A                 N/A
Class PT2-25B                  (3)      $1,707,281.70            N/A                  N/A                 N/A
Class PT2-26A                  (2)      $1,646,396.85      Class PT2-IO-26            N/A                 N/A
Class PT2-26B                  (3)      $1,646,396.85             N/A                  N/A                 N/A
Class PT2-27A                  (2)      $1,587,686.15      Class PT2-IO-27            N/A                 N/A
Class PT2-27B                  (3)      $1,587,686.15            N/A                  N/A                 N/A
Class PT2-28A                  (2)      $1,531,117.95      Class PT2-IO-28            N/A                 N/A
Class PT2-28B                  (3)      $1,531,117.95            N/A                  N/A                 N/A
Class PT2-29A                  (2)      $1,476,826.90      Class PT2-IO-29            N/A                 N/A
Class PT2-29B                  (3)      $1,476,826.90            N/A                  N/A                 N/A
Class PT2-30A                  (2)      $1,424,144.45      Class PT2-IO-30            N/A                  N/A
Class PT2-30B                  (3)      $1,424,144.45            N/A                  N/A                 N/A
Class PT2-31A                  (2)      $1,373,341.65      Class PT2-IO-31            N/A                 N/A
Class PT2-31B                  (3)      $1,373,341.65            N/A                  N/A                 N/A
Class PT2-32A                  (2)      $1,353,148.40      Class PT2-IO-32            N/A                 N/A
Class PT2-32B                  (3)      $1,353,148.40            N/A                   N/A                 N/A
Class PT2-33A                  (2)      $2,336,536.40      Class PT2-IO-33            N/A                 N/A
Class PT2-33B                  (3)      $2,336,536.40            N/A                  N/A                 N/A
Class PT2-34A                   (2)      $4,436,661.95      Class PT2-IO-34            N/A                 N/A
Class PT2-34B                  (3)      $4,436,661.95            N/A                  N/A                 N/A
Class PT2-35A                  (2)        $994,456.85      Class PT2-IO-35            N/A                 N/A
Class PT2-35B                  (3)        $994,456.85            N/A                  N/A                 N/A
Class PT2-36A                  (2)        $960,765.25      Class PT2-IO-36            N/A                 N/A
Class PT2-36B                  (3)        $960,765.25            N/A                  N/A                 N/A
Class PT2-37A                  (2)        $928,195.85      Class PT2-IO-37            N/A                 N/A
Class PT2-37B                  (3)        $928,195.85             N/A                  N/A                 N/A
Class PT2-38A                  (2)        $896,711.90      Class PT2-IO-38            N/A                 N/A
Class PT2-38B                  (3)        $896,711.90            N/A                  N/A                  N/A
Class PT2-39A                  (2)        $866,278.30      Class PT2-IO-39            N/A                 N/A
Class PT2-39B                  (3)        $866,278.30            N/A                  N/A                 N/A
Class PT2-40A                  (2)        $836,862.60      Class PT2-IO-40            N/A                 N/A
Class PT2-40B                  (3)        $836,862.60            N/A                  N/A                 N/A
Class PT2-41A                  (2)        $808,434.70      Class PT2-IO-41            N/A                  N/A
Class PT2-41B                  (3)        $808,434.70            N/A                  N/A                 N/A
Class PT2-42A                  (2)        $780,949.15      Class PT2-IO-42            N/A                 N/A
Class PT2-42B                   (3)        $780,949.15            N/A                  N/A                 N/A
Class PT2-43A                  (2)        $754,383.05      Class PT2-IO-43            N/A                 N/A
Class PT2-43B                  (3)        $754,383.05            N/A                   N/A                 N/A
Class PT2-44A                  (2)        $728,706.30      Class PT2-IO-44            N/A                 N/A
Class PT2-44B                  (3)        $728,706.30            N/A                  N/A                 N/A
Class PT2-45A                   (2)        $703,889.70      Class PT2-IO-45            N/A                 N/A
Class PT2-45B                  (3)        $703,889.70            N/A                  N/A                 N/A
Class PT2-46A                  (2)        $679,905.45      Class PT2-IO-46            N/A                 N/A
Class PT2-46B                  (3)        $679,905.45            N/A                  N/A                 N/A
Class PT2-47A                  (2)        $656,725.50      Class PT2-IO-47            N/A                 N/A
Class PT2-47B                  (3)        $656,725.50            N/A                  N/A                 N/A
Class PT2-48A                  (2)        $634,323.35      Class PT2-IO-48            N/A                 N/A
Class PT2-48B                  (3)        $634,323.35            N/A                  N/A                 N/A
Class PT2-49A                  (2)        $612,673.70      Class PT2-IO-49            N/A                 N/A
Class PT2-49B                  (3)        $612,673.70            N/A                  N/A                  N/A
Class PT2-50A                  (2)        $591,751.70      Class PT2-IO-50            N/A                 N/A
Class PT2-50B                  (3)        $591,751.70            N/A                  N/A                 N/A
Class PT2-51A                  (2)         $571,533.40      Class PT2-IO-51            N/A                 N/A
Class PT2-51B                  (3)        $571,533.40            N/A                  N/A                 N/A
Class PT2-52A                  (2)        $551,995.60      Class PT2-IO-52             N/A                 N/A
Class PT2-52B                  (3)        $551,995.60            N/A                  N/A                 N/A
Class PT2-53A                  (2)        $533,115.75      Class PT2-IO-53            N/A                 N/A
Class PT2-53B                   (3)        $533,115.75            N/A                  N/A                 N/A
Class PT2-54A                  (2)        $514,872.15      Class PT2-IO-54            N/A                 N/A
Class PT2-54B                  (3)        $514,872.15            N/A                   N/A                 N/A
Class PT2-55A                  (2)     $14,325,609.85      Class PT2-IO-55            N/A                 N/A
Class PT2-55B                  (3)     $14,325,609.85            N/A                  N/A                 N/A
Class PT2-IO-2                 (4)                 (4)           N/A             Class PT1-2A         March 2006
Class PT2-IO-3                 (4)                 (4)           N/A             Class PT1-3A         April 2006
Class PT2-IO-4                 (4)                 (4)           N/A             Class PT1-4A          May 2006
Class PT2-IO-5                 (4)                 (4)           N/A             Class PT1-5A          June 2006
Class PT2-IO-6                 (4)                 (4)           N/A             Class PT1-6A          July 2006
Class PT2-IO-7                 (4)                 (4)           N/A             Class PT1-7A         August 2006
Class PT2-IO-8                 (4)                 (4)           N/A             Class PT1-8A       September 2006
Class PT2-IO-9                  (4)                 (4)           N/A             Class PT1-9A        October 2006
Class PT2-IO-10                (4)                 (4)           N/A             Class PT1-10A       November 2006
Class PT2-IO-11                (4)                 (4)            N/A             Class PT1-11A       December 2006
Class PT2-IO-12                (4)                 (4)           N/A             Class PT1-12A       January 2007
Class PT2-IO-13                (4)                 (4)           N/A             Class PT1-13A        February 2007
Class PT2-IO-14                (4)                 (4)           N/A             Class PT1-14A        March 2007
Class PT2-IO-15                (4)                 (4)           N/A             Class PT1-15A        April 2007
Class PT2-IO-16                 (4)                 (4)           N/A             Class PT1-16A         May 2007
Class PT2-IO-17                (4)                 (4)           N/A             Class PT1-17A         June 2007
Class PT2-IO-18                (4)                 (4)           N/A             Class PT1-18A         July 2007
Class PT2-IO-19                (4)                 (4)           N/A             Class PT1-19A        August 2007
Class PT2-IO-20                (4)                 (4)           N/A             Class PT1-20A      September 2007
Class PT2-IO-21                (4)                 (4)           N/A             Class PT1-21A       October 2007
Class PT2-IO-22                (4)                 (4)           N/A             Class PT1-22A       November 2007
Class PT2-IO-23                (4)                 (4)           N/A             Class PT1-23A       December 2007
Class PT2-IO-24                (4)                 (4)           N/A             Class PT1-24A       January 2008
Class PT2-IO-25                (4)                 (4)           N/A              Class PT1-25A       February 2008
Class PT2-IO-26                (4)                 (4)           N/A             Class PT1-26A        March 2008
Class PT2-IO-27                (4)                 (4)           N/A             Class PT1-27A        April 2008
Class PT2-IO-28                (4)                 (4)           N/A             Class PT1-28A         May 2008
Class PT2-IO-29                (4)                 (4)           N/A             Class PT1-29A         June 2008
Class PT2-IO-30                (4)                  (4)           N/A             Class PT1-30A         July 2008
Class PT2-IO-31                (4)                 (4)           N/A             Class PT1-31A        August 2008
Class PT2-IO-32                (4)                 (4)           N/A             Class PT1-32A      September 2008
Class PT2-IO-33                (4)                 (4)           N/A             Class PT1-33A       October 2008
Class PT2-IO-34                (4)                 (4)           N/A             Class PT1-34A       November 2008
Class PT2-IO-35                (4)                 (4)           N/A             Class PT1-35A       December 2008
Class PT2-IO-36                (4)                 (4)           N/A             Class PT1-36A       January 2009
Class PT2-IO-37                (4)                  (4)           N/A             Class PT1-37A       February 2009
Class PT2-IO-38                (4)                 (4)           N/A             Class PT1-38A        March 2009
Class PT2-IO-39                (4)                 (4)           N/A             Class PT1-39A        April 2009
Class PT2-IO-40                (4)                 (4)           N/A             Class PT1-40A         May 2009
Class PT2-IO-41                (4)                 (4)           N/A             Class PT1-41A         June 2009
Class PT2-IO-42                (4)                 (4)           N/A             Class PT1-42A         July 2009
Class PT2-IO-43                (4)                 (4)           N/A             Class PT1-43A        August 2009
Class PT2-IO-44                (4)                 (4)           N/A             Class PT1-44A      September 2009
Class PT2-IO-45                (4)                 (4)           N/A             Class PT1-45A       October 2009
Class PT2-IO-46                (4)                 (4)           N/A             Class PT1-46A       November 2009
Class PT2-IO-47                (4)                 (4)           N/A             Class PT1-47A       December 2009
Class PT2-IO-48                (4)                 (4)           N/A             Class PT1-48A       January 2010
Class PT2-IO-49                (4)                 (4)           N/A             Class PT1-49A       February 2010
Class PT2-IO-50                (4)                 (4)           N/A             Class PT1-50A        March 2010
Class PT2-IO-51                (4)                 (4)           N/A             Class PT1-51A        April 2010
Class PT2-IO-52                (4)                 (4)           N/A             Class PT1-52A         May 2010
Class PT2-IO-53                (4)                 (4)           N/A             Class PT1-53A          June 2010
Class PT2-IO-54                (4)                 (4)           N/A             Class PT1-54A         July 2010
Class PT2-IO-55                (4)                 (4)           N/A             Class PT1-55A        August 2010
Class PT2-R                     (5)                 (5)           N/A                  N/A                 N/A

</TABLE>

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

(1)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the Pooling-Tier
      REMIC-1 WAC Rate.

(2)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
      average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
      REMIC-1 Regular Interests and having an "A" in their class designation,
      provided that, on each Distribution Date on which interest is
      distributable on the Corresponding Pooling-Tier REMIC-2 IO Interest, this
      Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
      rate equal to Swap LIBOR subject to a maximum rate equal to the weighted
      average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
      REMIC-1 Regular Interests and having an "A" in their class designation.

(3)    For any Distribution Date (and the related Interest Accrual Period), this
      Pooling-Tier REMIC-2 Regular Interest shall bear interest at a per annum
      rate (its "Pooling-Tier REMIC-2 Interest Rate") equal to the weighted
      average of the Pooling-Tier REMIC-1 Interest Rates on the Pooling-Tier
      REMIC-1 Regular Interests and having a "B" in their class designation.

(4)    Each Pooling-Tier REMIC-2 IO is an interest-only interest and does not
      have a principal balance but has a notional balance ("Pooling-Tier REMIC-2
      IO Notional Balance") equal to the Pooling-Tier REMIC-2 Principal Amount
      of the Corresponding Pooling-Tier REMIC-1 Regular Interest. From the
      Closing Date through and including the Corresponding Actual Crossover
      Distribution Date, each Pooling-Tier REMIC-2 IO Interest shall be entitled
      to receive interest that accrues on the Corresponding Pooling-Tier REMIC-1
      Regular Interest at a rate equal to the excess, if any, of (i) the
      Pooling-Tier REMIC-1 Interest Rate for the Corresponding Pooling-Tier
      REMIC-1 Regular Interest over (ii) Swap LIBOR. After the Corresponding
      Actual Crossover Distribution Date, the Pooling-Tier REMIC-2 IO Interest
      shall not accrue interest.

(5)    The Class PT2-R Interest shall not have a principal balance and shall not
      bear interest.

            On each Distribution Date, the interest distributable in respect of
the Mortgage Loans for such Distribution Date shall be distributed to the
Pooling-Tier REMIC-2 Regular Interests at the Pooling-Tier REMIC-2 Interest
Rates shown above.

            On each Distribution Date, Realized Losses, Subsequent Recoveries
and payments of principal in respect of the Mortgage Loans shall be allocated to
the then outstanding Pooling-Tier REMIC-2 Regular Interests (other than the
Pooling-Tier REMIC-2 IO Interests) with the lowest numerical denomination until
the Pooling-Tier REMIC-2 Principal Amount of such interest is reduced to zero,
provided that, for Pooling-Tier REMIC-2 Regular Interests Mortgage Loans with
the same numerical denomination, such Realized Losses, Subsequent Recoveries and
payments of principal shall be allocated pro rata between such Pooling-Tier
REMIC-2 Regular Interests, until the Pooling-Tier REMIC-2 Principal Amount of
such interests is reduced to zero.

                                Lower-Tier REMIC

            The Lower-Tier REMIC shall issue the following interests, and each
such interest, other than the Class LT-R Interest, is hereby designated as a
regular interest in the Lower-Tier REMIC. The Class LT-R Interest is hereby
designated as the sole class of residual interest in the Lower-Tier REMIC and
shall be represented by the Class R Certificates.

                                                                   Corresponding
                                                                    Upper-Tier
  Lower-Tier REMIC      Lower-Tier    Initial Lower-Tier Principal     REMIC Regular
     Interest        Interest Rate              Amount                  Interest
--------------------------------------------------------------------------------
Class LT-A-1              (1)        1/2 initial Class Certificate         A-1
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-A-2              (1)        1/2 initial Class Certificate         A-2
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-A-3              (1)        1/2 initial Class Certificate         A-3
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-A-4              (1)        1/2 initial Class Certificate         A-4
                                    Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-M-1              (1)        1/2 initial Class Certificate         M-1
                                   Balance of Corresponding
                                    Upper-Tier Regular Interest
Class LT-M-2              (1)        1/2 initial Class Certificate         M-2
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-M-3               (1)        1/2 initial Class Certificate         M-3
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-M-4              (1)        1/2 initial Class Certificate         M-4
                                    Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-M-5              (1)        1/2 initial Class Certificate         M-5
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-M-6              (1)        1/2 initial Class Certificate         M-6
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-B-1              (1)        1/2 initial Class Certificate         B-1
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-B-2              (1)        1/2 initial Class Certificate         B-2
                                   Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-B-3              (1)        1/2 initial Class Certificate         B-3
                                    Balance of Corresponding
                                   Upper-Tier Regular Interest
Class LT-Accrual          (1)        1/2 Pool Stated Principal             N/A
                                   Balance plus 1/2 Subordinated
                                    Amount
Class LT-IO               (5)        (5)                                   N/A
Class LT-R                (6)        (6)                                   N/A

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

(1)    The interest rate with respect to any Distribution Date for these
      interests is a per annum variable rate equal to the weighted average of
      the Pooling-Tier REMIC-2 Interest Rates of the Pooling-Tier REMIC-2
      Regular Interests (other than the Pooling-Tier REMIC-2 IO Interests).

(2)    This Lower-Tier Regular Interest is an interest-only interest and does not
      have a Lower-Tier Principal Amount. On each Distribution Date, this
      Lower-Tier Regular Interest shall be entitled to receive all interest
      distributable on the Pooling-Tier REMIC-2 IO Interests.

(3)    The Class LT-R Interest is the sole class of residual interest in the
      Lower-Tier REMIC and it does not have a principal amount or an interest
      rate.

            Each Lower-Tier Regular Interest is hereby designated as a regular
interest in the Lower-Tier REMIC. The Class LT-A-1, Class LT-A-2, Class LT-A-3,
Class LT-A-4, Class LT-M-1, Class LT-M-2, Class LT-M-3, Class LT-M-4, Class
LT-M-5, Class LT-M-6, Class LT-B-1, Class LT-B-2 and Class LT-B-3 Interests are
hereby designated the LT-Accretion Directed Classes (the "LT-Accretion Directed
Classes").

            On each Distribution Date, 50% of the increase in the Subordinated
Amount shall be payable as a reduction of the Lower-Tier Principal Amount of the
LT-Accretion Directed Classes (each such Class will be reduced by an amount
equal to 50% of any increase in the Subordinated Amount that is attributable to
a reduction in the Class Certificate Balance of its Corresponding Class) and
shall be accrued and added to the Lower-Tier Principal Amount of the Class
LT-Accrual Interest. On each Distribution Date, the increase in the Lower-Tier
Principal Amount of the Class LT-Accrual Interest shall not exceed interest
accruals for such Distribution Date for the Class LT-Accrual Interest. In the
event that: (i) 50% of the increase in the Subordinated Amount exceeds (ii)
interest accruals on the Class LT-Accrual Interest for such Distribution Date,
the excess for such Distribution Date (accumulated with all such excesses for
all prior Distribution Dates) will be added to any increase in the Subordinated
Amount for purposes of determining the amount of interest accrual on the Class
LT-Accrual Interest payable as principal on the LT-Accretion Directed Classes on
the next Distribution Date pursuant to the first sentence of this paragraph. All
payments of scheduled principal and prepayments of principal generated by the
Mortgage Loans and all Subsequent Recoveries allocable to principal shall be
allocated (i) 50% to the Class LT-Accrual Interest and (ii) 50% to the
LT-Accretion Directed Classes (such principal payments and Subsequent Recoveries
shall be allocated among such LT-Accretion Directed Classes in an amount equal
to 50% of the principal amounts and Subsequent Recoveries allocated to their
respective Corresponding Classes), until paid in full. Notwithstanding the
above, principal payments allocated to the Class X Interest that result in the
reduction in the Subordinated Amount shall be allocated to the Class LT-Accrual
Interest (until paid in full). Realized Losses shall be applied so that after
all distributions have been made on each Distribution Date (i) the Lower-Tier
Principal Amount of each LT-Accretion Directed Class is equal to 50% of the
Class Certificate Balance of its Corresponding Class, and (ii) the Class
LT-Accrual Interest is equal to 50% of the aggregate Stated Principal Balance of
the Mortgage Loans plus 50% of the Subordinated Amount. Any increase in the
Class Certificate Balance of a Class of Offered Certificates as a result of a
Subsequent Recovery shall increase the Lower-Tier Principal Amount of the
Corresponding Lower-Tier Regular Interest by 50% of such increase, and the
remaining 50% of such increase shall increase the Lower-Tier Principal Amount of
the Class LT-Accrual Interest.

                                Upper-Tier REMIC

            The Upper-Tier REMIC shall issue the following interests, and each
such interest, other than the Class UT-R Interest, is hereby designated as a
regular interest in the Upper-Tier REMIC. The Class UT-R Interest is hereby
designated as the sole class of residual interests in the Upper-Tier REMIC and
shall be represented by the Class R Certificates.

                                                                Corresponding
  Upper-Tier REMIC        Upper-Tier        Initial Principal        Class of
      Interest           Interest Rate      Upper-Tier Amount      Certificates
-----------------------------------------------------------------------------
Class A-1                      (1)             $ 490,920,000          Class A-1
Class A-2                     (2)             $ 135,080,000          Class A-2
Class A-3                     (2)             $ 207,750,000          Class A-3
Class A-4                     (2)             $ 123,421,000          Class A-4
Class M-1                     (3)             $   42,487,000          Class M-1
Class M-2                     (3)             $   40,059,000          Class M-2
Class M-3                     (3)             $   23,064,000          Class M-3
Class M-4                     (3)             $   20,637,000          Class M-4
Class M-5                     (3)             $   20,030,000          Class M-5
Class M-6                     (3)             $   17,602,000          Class M-6
Class B-1                     (3)              $   17,601,000          Class B-1
Class B-2                     (3)             $   16,388,000          Class B-2
Class B-3                     (3)             $   12,139,000          Class B-3
Class IO                      (4)                  (2)                   N/A
Class X                       (5)                  (3)                Class X
Class UT-R                    (6)                  (6)                Class R

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

(1)    For any Distribution Date (and the related Interest Accrual Period) this
      interest shall bear interest at the lesser of (i) the Pass-Through Rate
      (determined without regard to the WAC Cap) for the Corresponding Class of
      Certificates and (ii) the Upper-Tier REMIC WAC Rate.

(2)    This interest is an interest-only interest and does not have a principal
      balance. On each Distribution Date, the Class IO Interest shall be
      entitled to receive all interest distributable on the Class LT-IO
      Interest. This interest shall be beneficially owned by the holders of the
      Class X Certificates and shall be held as an asset of the Swap Account.

(3)    The Class X Interest has an initial principal balance of $46,736,513 but
      will not accrue interest on such balance but will accrue interest on a
       notional principal balance. As of any Distribution Date, the Class X
      Interest shall have a notional principal balance equal to the aggregate of
      the Lower-Tier Principal Amounts of the Lower-Tier Regular Interests
      (other than the Class LT-IO Interest) as of the first day of the related
      Interest Accrual Period. With respect to any Interest Accrual Period, the
      Class X Interest shall bear interest at a rate equal to the excess, if
      any, of the Upper-Tier REMIC WAC Rate over the product of (i) 2 and (ii)
      the weighted average of the Lower-Tier Interest Rates of the Lower-Tier
      REMIC Interests (other than the Class LT-IO Interest), where the
      Lower-Tier Interest Rate on each of the Class LT-Accrual Interest is
      subject to a cap equal to zero and each LT-Accretion Directed Class is
      subject to a cap equal to the Upper-Tier Interest Rate on its
      Corresponding Class of Upper-Tier Regular Interest. With respect to any
      Distribution Date, interest that so accrues on the notional principal
      balance of the Class X Interest shall be deferred in an amount equal to
      any increase in the Subordinated Amount on such Distribution Date. Such
      deferred interest shall not itself bear interest.

(4)    The Class UT-R Interest does not have an interest rate or a principal
      balance.

            On each Distribution Date, interest distributable in respect of the
Lower-Tier Interests for such Distribution Date shall be deemed to be
distributed on the interests in the Upper-Tier REMIC at the rates shown above,
provided that the Class IO Interest shall be entitled to receive interest before
any other interest in the Upper-Tier REMIC.

            On each Distribution Date, all Realized Losses, Subsequent
Recoveries and all payments of principal shall be allocated to the Upper-Tier
Interests until the outstanding principal balance of each such interest equals
the outstanding Class Certificate Balance of the Corresponding Class of
Certificates as of such Distribution Date.

                                The Certificates

                             Class              Class Certificate
Class Designation        Pass-Through Rate            Balance
----------------------------------------------------------------
Class A-1                      (1)                $ 490,920,000
Class A-2                      (1)                $ 135,080,000
Class A-3                      (1)                $ 207,750,000
Class A-4                      (1)                $ 123,421,000
Class M-1                      (2)                $   42,487,000
Class M-2                      (2)                $   40,059,000
Class M-3                      (2)                $   23,064,000
Class M-4                      (2)                $   20,637,000
Class M-5                      (2)                $   20,030,000
Class M-6                      (2)                $   17,602,000
Class B-1                      (2)                $   17,601,000
Class B-2                      (2)                $   16,388,000
Class B-3                       (2)                $   12,139,000
Class X                        (3)                $           0(3)
Class R                        (4)                $           0(4)

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

(1)    The Class A-1, Class A-2, Class A-3, Class A-4 Interest will bear interest
      during each Interest Accrual Period at a per annum rate equal to (a) on or
      prior to the Optional Termination Date, the least of (i) LIBOR plus the
      applicable Pass-Through Margin, (ii) the WAC Cap or (b) after the Optional
      Termination Date, the least of (i) LIBOR plus the applicable Pass-Through
      Margin and (iii) the WAC Cap.

(2)    The Class M-1, Class M-2, Class M-3, Class M-4, Class M-5, Class M-6,
      Class B-1, Class B-2 and Class B-3 Interests will bear interest during
      each Interest Accrual Period at a per annum rate equal to (a) on or prior
      to the Optional Termination Date, the lesser of (i) LIBOR plus the
      applicable Pass-Through Margin, and (ii) the WAC Cap or (b) after the
      Optional Termination Date, the lesser of (i) LIBOR plus the applicable
      Pass-Through Margin, and (ii) the WAC Cap.

(3)    The Class X Certificates will represent beneficial ownership of the Class
      X Interest, the Class IO Interest, the Interest Rate Swap Agreement, the
      right to Class IO Shortfalls and amounts in the Excess Reserve Fund
      Account and the Swap Account, subject to the obligation to make payments
      from the Excess Reserve Fund Account in respect of Basis Risk CarryForward
      Amounts and amounts in the Swap Account subject to the obligation to make
      Net Swap Payments, Swap Termination Payments and Basis Risk CarryForward
      Amounts. For federal income tax purposes, the Trustee will treat a Class X
      Certificateholder's obligation to make payments from the Excess Reserve
      Fund Account or the Swap Account as payments made pursuant to an interest
      rate cap contract written by the Class X Certificateholders in favor of
      each Class of LIBOR Certificates. Such rights of the Class X
      Certificateholders and LIBOR Certificateholders shall be treated as held
      in a portion of the Trust Fund that is treated as a grantor trust under
      subpart E, Part I of subchapter J of the Code.

(4)    The Class R Certificates do not have an interest rate or a principal
      balance.

            The minimum denomination for each Class of Certificates, other than
the Class P, Class R and the Class X Certificates, will be $25,000 with integral
multiples of $1 in excess thereof. The minimum denomination for the Class P and
the Class X Certificates will each be a 1% Percentage Interest in such Class.
The Class R Certificate will represent a 100% Percentage Interest in such Class.

            It is expected that each Class of Certificates will receive its
final distribution of principal and interest on or prior to the Final Scheduled
Distribution Date.

            Set forth below are designations of Classes of Certificates to the
categories used herein:

Book-Entry Certificates...........    All Classes of Certificates other than the
                                     Physical Certificates.

Class A Certificates..............    Class A-1, Class A-2, Class A-3 and
                                     Class A-4 Certificates.

Delay Certificates................    None.

ERISA-Restricted Certificates.....    Class R Certificates, Class P Certificates
                                     and Class X Certificates; any certificate
                                     with a rating below the lowest applicable
                                     permitted rating under the Underwriters'
                                     Exemption.

Non-Delay Certificates............    Class A, Class X and Subordinated
                                      Certificates.

Offered Certificates..............    All Classes of Certificates other than the
                                     Private Certificates.

Physical Certificates.............    Class P, Class X and Class R Certificates.

Private Certificates..............    Class P, Class X and Class R Certificates.

Rating Agencies...................    Fitch, Moody's and Standard & Poor's.

Regular Certificates..............    All Classes of Certificates other than the
                                      Class P and Class R Certificates.

Residual Certificates.............    Class R Certificates.

Subordinated Certificates.........    Class M-1, Class M-2, Class M-3,
                                     Class M-4, Class M-5, Class M-6, Class B-1,
                                     Class B-2 and Class B-3 Certificates.

                                    ARTICLE I

                                   DEFINITIONS

            Whenever used in this Agreement, the following words and phrases,
unless the context otherwise requires, shall have the following meanings:

            Accepted Servicing Practices: With respect to any Mortgage Loan,
those mortgage servicing practices set forth in Section 3.01(a) of this
Agreement.

            Account: Any of the Collection Account, the Distribution Account,
any Escrow Account, the Excess Reserve Fund Account or the Swap Account. Each
Account shall be an Eligible Account.

            Accrued Certificate Interest Distribution Amount: With respect to
any Distribution Date for each Class of Offered Certificates, the amount of
interest accrued during the related Interest Accrual Period at the applicable
Pass-Through Rate on the related Class Certificate Balance immediately prior to
such Distribution Date, as reduced by such Class's share of Net Prepayment
Interest Shortfalls and Relief Act Interest Shortfalls for such Distribution
Date allocated to such Class pursuant to Section 4.02.

            Adjustable Rate Mortgage Loan: An adjustable rate Mortgage Loan.

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

            Adjustment Date: As to any Adjustable Rate Mortgage Loan, the first
Due Date on which the related Mortgage Rate adjusts as set forth in the related
Mortgage Note and each Due Date thereafter on which the Mortgage Rate adjusts as
set forth in the related Mortgage Note.

            Advance: Any P&I Advance or Servicing Advance.

             Advance Facility: A financing or other facility as described in
Section 10.07.

            Advancing Person: The Person to whom the Servicer's rights under
this Agreement to be reimbursed for any P&I Advances or Servicing Advances have
been assigned pursuant to Section 10.07.

            Affiliate: With respect to any Person, any other Person controlling,
controlled by or under common control with such first Person. For the purposes
of this definition, "control" means the power to direct the management and
policies of such Person, directly or indirectly, whether through the ownership
of voting securities, by contract or otherwise; and the terms "controlling" and
"controlled" have meanings correlative to the foregoing.

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

            Amount Held for Future Distribution: As to the Certificates on any
Distribution Date, the aggregate amount held in each Collection Account at the
close of business on the related Determination Date on account of (i) Principal
Prepayments, Insurance Proceeds, Condemnation Proceeds and Liquidation Proceeds
on the Mortgage Loans received after the end of the related Prepayment Period
and (ii) all Scheduled Payments on the Mortgage Loans due after the end of the
related Due Period.

            Analytics Company: Intex Solutions, Inc., or any other bond
analytics service provider identified to the Trustee by the Depositor.

            Applied Realized Loss Amount: With respect to any Distribution Date,
the amount, if any, by which the aggregate Class Certificate Balance of the
Offered Certificates after distributions of principal on such Distribution Date
exceeds the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date.

            Appraised Value: The value set forth in an appraisal made in
connection with the origination of the related Mortgage Loan as the value of the
Mortgaged Property.

            Assignment of Mortgage: An assignment of the Mortgage, notice of
transfer or equivalent instrument in recordable form (other than the assignee's
name and recording information not yet returned from the recording office),
reflecting the sale of the Mortgage to the Trustee.

            Available Funds: With respect to any Distribution Date and the
Mortgage Loans to the extent received by the Trustee (x) the sum of (i) all
scheduled installments of interest (net of the related Expense Fees) and
principal due on the Due Date on such Mortgage Loans in the related Due Period
and received by the Servicer on or prior to the related Determination Date,
together with any P&I Advances in respect thereof; (ii) all Condemnation
Proceeds, Insurance Proceeds and Liquidation Proceeds received by the Servicer
during the related Prepayment Period (in each case, net of unreimbursed expenses
incurred in connection with a liquidation or foreclosure and unreimbursed
Advances, if any); (iii) all partial or full prepayments on the Mortgage Loans
received by the Servicer during the related Prepayment Period together with all
Compensating Interest, if applicable, thereon (excluding any Prepayment
Charges); (iv) all Substitution Adjustment Amounts with respect to the
substitutions of Mortgage Loans that occur with respect to such Distribution
Date; (v) amounts received with respect to such Distribution Date as the
Repurchase Price in respect of a Mortgage Loan repurchased by the Depositor or
the Responsible Party, as applicable, with respect to such Distribution Date;
(vi) the proceeds received with respect to the termination of the Trust Fund
pursuant to clause (a) of Section 9.01; and (vii) the Closing Date Deposit
Amount; reduced by (y) amounts in reimbursement for Advances previously made
with respect to the Mortgage Loans and other amounts as to which the Servicer,
the Depositor or the Trustee are entitled to be paid or reimbursed pursuant to
this Agreement.

            Balloon Loan: Any Mortgage Loan that requires only payments of
interest until the stated maturity date of the Mortgage Loan or Scheduled
Payments of principal which (not including the payment due on its stated
maturity date) are based on an amortization schedule that would be insufficient
to fully amortize the principal thereof by the stated maturity date of the
Mortgage Loan.

            Basic Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the Principal Remittance Amount for such
Distribution Date over (ii) the Excess Subordinated Amount, if any, for such
Distribution Date.

             Basis Risk CarryForward Amount: With respect to each Class of
Offered Certificates, as of any Distribution Date, the sum of (A) if on such
Distribution Date the Pass-Through Rate for any Class of Offered Certificates is
based upon the WAC Cap, the excess of (i) the Accrued Certificate Interest
Distribution Amount such Class of Certificates would otherwise be entitled to
receive on such Distribution Date had such Pass-Through Rate not been subject to
any WAC Cap (that is, had such rate been calculated as the sum of LIBOR and the
applicable Pass-Through Margin on such Class of Certificates for such
Distribution Date and the resulting amount being reduced by allocated Net
Prepayment Interest Shortfalls and Relief Act Interest Shortfalls) over (ii) the
Accrued Certificate Interest Distribution Amount received on such Distribution
Date such Class of Certificates at, with respect to each Class of Offered
Certificates, the WAC Cap for such Distribution Date and (B) the Basis Risk
CarryForward Amount for such Class of Certificates for all previous Distribution
Dates not previously paid, together with interest thereon at a rate equal to the
sum of LIBOR and the applicable Pass-Through Margin for such Class of
Certificates for such Distribution Date.

             Basis Risk Payment: For any Distribution Date, an amount equal to
the lesser of (i) the aggregate of the Basis Risk CarryForward Amounts for such
Distribution Date and (ii) the Class X Distributable Amount (prior to any
reduction for amounts paid from the Excess Reserve Fund Account to pay any Basis
Risk CarryForward Amount or any Swap Termination Payment).

            Best's: Best's Key Rating Guide, as the same shall be amended from
time to time.

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

            Business Day: Any day other than (i) Saturday or Sunday, or (ii) a
day on which banking and savings and loan institutions, in (a) the States of
Arizona, New York, California, Texas, Maryland, Minnesota or Delaware, (b) a
State in which the Servicer's servicing operations are located, or (c) the State
in which the Trustee's operations are located, are authorized or obligated by
law or executive order to be closed.

            Certificate: Any one of the Certificates executed by the Trustee in
substantially the forms attached hereto as exhibits.

            Certificate Balance: With respect to any Class of Certificates,
other than the Class X, Class P or Class R Certificates, at any date, the
maximum dollar amount of principal to which the Holder thereof is then entitled
hereunder, such amount being equal to the Denomination thereof minus all
distributions of principal previously made with respect thereto and in the case
of any Certificates, reduced by any Applied Realized Loss Amounts allocated to
such Class of Certificates pursuant to Section 4.05; provided, however, that
immediately following the Distribution Date on which a Subsequent Recovery is
distributed, the Class Certificate Balances of any Class or Classes of
Certificates that have been previously reduced by Applied Realized Loss Amounts
will be increased, in order of seniority, by the amount of the Subsequent
Recovery distributed on such Distribution Date (up to the amount of the Unpaid
Realized Loss Amount for such Class or Classes for such Distribution Date). The
Class X, Class P and Class R Certificates have no Certificate Balance.

            Certificate Owner: With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Book-Entry Certificate.

            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 shall be deemed not
to be 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 such consent has been obtained; provided, however,
that if any such Person (including the Depositor) owns 100% of the Percentage
Interests evidenced by a Class of Certificates, such Certificates shall be
deemed to be Outstanding for purposes of any provision hereof that requires the
consent of the Holders of Certificates of a particular Class as a condition to
the taking of any action hereunder. 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.

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

            Class A Certificates: As specified in the Preliminary Statement.

            Class A Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the aggregate Class Certificate Balances of
the Class A Certificates immediately prior to such Distribution Date over (ii)
the lesser of (A) 57.70% of the aggregate Stated Principal Balance of the
Mortgage Loans for such Distribution Date and (B) the excess, if any, of the
aggregate Stated Principal Balance of the Mortgage Loans for such Distribution
Date over $6,069,573.

            Class A-1 Certificates: All Certificates bearing the class
designation of "Class A-1".

            Class A-2 Certificates: All Certificates bearing the class
designation of "Class A-2".

            Class A-3 Certificates: All Certificates bearing the class
designation of "Class A-3".

            Class A-4 Certificates: All Certificates bearing the class
designation of "Class A-4".

             Class B Certificates: The Class B-1, Class B-2 and Class B-3
Certificates.

            Class B-1 Certificates: All Certificates bearing the class
designation of "Class B-1".

            Class B-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date) and (H) the Class
Certificate Balance of the Class B-1 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 87.60% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $6,069,573.

            Class B-2 Certificates: All Certificates bearing the class
designation of "Class B-2".

            Class B-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date), (H) the Class
Certificate Balance of the Class B-1 Certificates (after taking into account the
distribution of the Class B-1 Principal Distribution Amount for such
Distribution Date), and (I) the Class Certificate Balance of the Class B-2
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 90.30% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$6,069,573.

            Class B-3 Certificates: All Certificates bearing the class
designation of "Class B-3".

            Class B-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date), (G) the Class Certificate Balance of the Class M-6
Certificates (after taking into account the distribution of the Class M-6
Principal Distribution Amount for such Distribution Date), (H) the Class
Certificate Balance of the Class B-1 Certificates (after taking into account the
distribution of the Class B-1 Principal Distribution Amount for such
Distribution Date), (I) the Class Certificate Balance of the Class B-2
Certificates (after taking into account the distribution of the Class B-2
Principal Distribution Amount for such Distribution Date) and (J) the Class
Certificate Balance of the Class B-3 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 92.30% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $6,069,573.

            Class Certificate Balance: With respect to any Class and as to any
date of determination, the aggregate of the Certificate Balances of all
Certificates of such Class as of such date.

            Class IO Interest: As specified in the Preliminary Statement.

            Class IO Shortfalls: As defined in Section 8.13. For the avoidance
of doubt, the Class IO Shortfall for any Distribution Date shall equal the
amount payable to the Class X Certificates in respect of amounts due to the Swap
Provider on such Distribution Date (other than Defaulted Swap Termination
Payments) in excess of the amount payable on the Class X Interest (prior to any
reduction for Basis Risk Payments or Swap Termination Payments) on such
Distribution Date, all as further provided in Section 8.13.

            Class LT-R Interest: The residual interest in the Lower-Tier REMIC
as described in the Preliminary Statement and the related footnote thereto.

            Class M Certificates: The Class M-1, Class M-2, Class M-3, Class
M-4, Class M-5 and Class M-6 Certificates.

            Class M-1 Enhancement Percentage: With respect to any Distribution
Date, the percentage obtained by dividing (x) the sum of (i) the aggregate Class
Certificate Balances of the Class M and Class B Certificates (other than the
Class M-1 Certificates) and (ii) the Subordinated Amount, in each case after
taking into account the distributions of the related Principal Distribution
Amount and any principal payments on those Classes of Certificates from the Swap
Account on that Distribution Date, by (y) the aggregate Stated Principal Balance
of the Mortgage Loans for that Distribution Date.

            Class M-1 Certificates: All Certificates bearing the class
designation of "Class M-1".

            Class M-1 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), and (B) the Class Certificate Balance of the Class M-1 Certificates
immediately prior to such Distribution Date over (ii) the lesser of (A) 64.70%
of the aggregate Stated Principal Balance of the Mortgage Loans for such
Distribution Date and (B) the excess, if any, of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date over $6,069,573.

            Class M-2 Certificates: All Certificates bearing the class
designation of "Class M-2".

            Class M-2 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date) and (C) the Class Certificate Balance of the
Class M-2 Certificates immediately prior to such Distribution Date over (ii) the
lesser of (A) 71.30% of the aggregate Stated Principal Balance of the Mortgage
Loans for such Distribution Date and (B) the excess, if any, of the aggregate
Stated Principal Balance of the Mortgage Loans for such Distribution Date over
$6,069,573.

            Class M-3 Certificates: All Certificates bearing the class
designation of "Class M-3".

            Class M-3 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date) and (D) the Class
Certificate Balance of the Class M-3 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 75.10% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $6,069,573.

            Class M-4 Certificates: All Certificates bearing the class
designation of "Class M-4".

            Class M-4 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), and (E) the Class Certificate Balance of the Class M-4
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 78.50% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$6,069,573.

            Class M-5 Certificates: All Certificates bearing the class
designation of "Class M-5".

            Class M-5 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date) and (F) the Class
Certificate Balance of the Class M-5 Certificates immediately prior to such
Distribution Date over (ii) the lesser of (A) 81.80% of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date and (B) the
excess, if any, of the aggregate Stated Principal Balance of the Mortgage Loans
for such Distribution Date over $6,069,573.

            Class M-6 Certificates: All Certificates bearing the class
designation of "Class M-6".

            Class M-6 Principal Distribution Amount: With respect to any
Distribution Date, the excess of (i) the sum of (A) the aggregate Class
Certificate Balances of the Class A Certificates (after taking into account the
distribution of the Class A Principal Distribution Amount for such Distribution
Date), (B) the Class Certificate Balance of the Class M-1 Certificates (after
taking into account the distribution of the Class M-1 Principal Distribution
Amount for such Distribution Date), (C) the Class Certificate Balance of the
Class M-2 Certificates (after taking into account the distribution of the Class
M-2 Principal Distribution Amount for such Distribution Date), (D) the Class
Certificate Balance of the Class M-3 Certificates (after taking into account the
distribution of the Class M-3 Principal Distribution Amount for such
Distribution Date), (E) the Class Certificate Balance of the Class M-4
Certificates (after taking into account the distribution of the Class M-4
Principal Distribution Amount for such Distribution Date), (F) the Class
Certificate Balance of the Class M-5 Certificates (after taking into account the
distribution of the Class M-5 Principal Distribution Amount for such
Distribution Date) and (G) the Class Certificate Balance of the Class M-6
Certificates immediately prior to such Distribution Date over (ii) the lesser of
(A) 84.70% of the aggregate Stated Principal Balance of the Mortgage Loans for
such Distribution Date and (B) the excess, if any, of the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date over
$6,069,573.

            Class P Certificates: All Certificates bearing the class designation
of "Class P".

            Class PT1-R Interest: The residual interest in Pooling-Tier REMIC-1
as described in the Preliminary Statement and the related footnote thereto.

            Class PT2-R Interest: The residual interest in Pooling-Tier REMIC-2
as described in the Preliminary Statement and the related footnote thereto.

             Class R Certificates: All Certificates bearing the class designation
of "Class R".

            Class UT-R Interest: The residual interest in the Upper-Tier REMIC
as described in the Preliminary Statement and the related footnote thereto.

            Class X Certificates: All Certificates bearing the class designation
of "Class X".

            Class X Distributable Amount: On any Distribution Date, the sum of
(i) as a distribution in respect of interest, the amount of interest that has
accrued on the Class X Interest and not applied as an Extra Principal
Distribution Amount on such Distribution Date, plus any such accrued interest
remaining undistributed from prior Distribution Dates, plus, without
duplication, (ii) as a distribution in respect of principal, any portion of the
principal balance of the Class X Interest which is distributable as a
Subordination Reduction Amount, minus (iii) any amounts paid from the Excess
Reserve Fund Account to pay any Basis Risk CarryForward Amount or any Swap
Termination Payment.

            Class X Interest: The Upper-Tier Regular Interest represented by the
Class X Certificates as specified and described in the Preliminary Statement and
the related footnote thereto.

            Closing Date: February 28, 2006.

             Closing Date Deposit Amount: $303.10 (all of which is allocable to
principal) deposited by the Depositor into the Distribution Account on the
Closing Date.

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

            Collection Account: As defined in Section 3.10(a).

            Combined Loan to Value Ratio or CLTV: As of any date and as to any
Second Lien Mortgage Loan, the ratio, expressed as a percentage, of the (a) sum
of (i) the outstanding principal balance of the Second Lien Mortgage Loan and
(ii) the outstanding principal balance as of such date of any mortgage loan or
mortgage loans that are senior or equal in priority to the Second Lien Mortgage
Loan and which are secured by the same Mortgaged Property to (b) the Appraised
Value as determined pursuant to the Underwriting Guidelines of the related
Mortgaged Property as of the origination of the Second Lien Mortgage Loan.

            Commission: The United States Securities and Exchange Commission.

            Compensating Interest: For any Distribution Date, the lesser of (a)
the amount by which such Prepayment Interest Shortfall exceeds all Prepayment
Interest Excesses for such Distribution Date on the Mortgage Loans and (b) the
amount of the aggregate Servicing Fee paid to or retained by the Servicer for
such Distribution Date.

            Condemnation Proceeds: All awards or settlements in respect of a
Mortgaged Property, whether permanent or temporary, partial or entire, by
exercise of the power of eminent domain or condemnation.

            Convertible Mortgage Loan: Any individual Adjustable Rate Mortgage
Loan which contains a provision whereby the Mortgagor is permitted to convert
the Adjustable Rate Mortgage Loan to a Fixed Rate Mortgage Loan in accordance
with the terms of the related Mortgage Note.

            Corporate Trust Office: The designated office of the Trustee in the
State of Maryland 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 (i) for purposes of Certificate
transfers, at Wells Fargo Center, Sixth Street and Marquette Avenue,
Minneapolis, Minnesota 55479 and (ii) for all other purposes, at 9062 Old
Annapolis Road, Columbia, Maryland 21045, Attention: Client Manager--MSAC
2006-HE1, facsimile no. (410) 715- 2380, and which is the address to which
notices to and correspondence with the Trustee should be directed.

            Corresponding Class: The class of interests in the Lower-Tier REMIC
or Upper-Tier REMIC that corresponds to the class of interests in the other such
REMIC or to a Class of Certificates in the manner set out below:

               Corresponding        Corresponding        Corresponding
              Lower-Tier Class    Upper-Tier Regular      Class of
                Designation            Interest         Certificates
               Class LT-A-1           Class A-1           Class A-1
               Class LT-A-2           Class A-2           Class A-2
               Class LT-A-3           Class A-3           Class A-3
               Class LT-A-4           Class A-4           Class A-4
               Class LT-M-1           Class M-1           Class M-1
               Class LT-M-2            Class M-2           Class M-2
               Class LT-M-3           Class M-3           Class M-3
               Class LT-M-4           Class M-4           Class M-4
               Class LT-M-5           Class M-5           Class M-5
               Class LT-M-6           Class M-6           Class M-6
               Class LT-B-1           Class B-1           Class B-1
               Class LT-B-2           Class B-2           Class B-2
               Class LT-B-3           Class B-3           Class B-3
                       N/A             Class X             Class X

            Corresponding Pooling-Tier REMIC-1 Regular Interest: As described in
the Preliminary Statement.

            Corresponding Pooling-Tier REMIC-2 IO Interest: As described in the
Preliminary Statement.

            Corresponding Scheduled Crossover Distribution Date: The
Distribution Date in the month and year specified in the Preliminary Statement
corresponding to a Pooling-Tier REMIC-2 IO Interest.

            Cumulative Loss Percentage: With respect to any Distribution Date,
the percentage equivalent of a fraction, the numerator of which is the aggregate
amount of Realized Losses incurred from the Cut-off Date through the last day of
the related Prepayment Period and the denominator of which is the Cut-off Date
Pool Principal Balance of the Mortgage Loans.

            Cumulative Loss Trigger Event: With respect to any Distribution
Date, a Cumulative Loss Trigger Event exists if the quotient (expressed as a
percentage) of (x) the aggregate amount of Realized Losses incurred since the
Cut-off Date through the last day of the related Prepayment Period divided by
(y) the Cut-off Date Pool Principal Balance exceeds the applicable cumulative
loss percentages set forth below with respect to such Distribution Date:

Distribution Date Occurring In              Cumulative Loss Percentage
--------------------------------------------------------------------------------
March 2008 through February 2009      1.400% for the first month, plus an
                                      additional 1/12th of 1.700% for each month
                                     thereafter (e.g., 2.250% in September 2008)

March 2009 through February 2010      3.100% for the first month, plus an
                                     additional 1/12th of 1.750% for each month
                                     thereafter (e.g., 3.975% in September 2009)

March 2010 through February 2011      4.850% for the first month, plus an
                                     additional 1/12th of 1.400% for each month
                                     thereafter (e.g., 5.550% in September 2010)

March 2011 through February 2012      6.250% for the first month, plus an
                                     additional 1/12th of 0.750% for each month
                                      thereafter (e.g., 6.625% in September 2011)

March 2012 and thereafter             7.000%

            Custodial File: With respect to each Mortgage Loan, the file
retained by the Trustee or the Custodian, as applicable, consisting of items (i)
- (viii) as listed on Exhibit K hereto.

            Custodian: With respect to the Decision One Mortgage Loans, LaSalle.

            Custodian Fee: With respect to each Distribution Date, the aggregate
amount of fees and expenses that the Custodian is entitled to receive, pursuant
to the fee schedule related to the Decision One Mortgage Loans to which the
Depositor and the Custodian have previously agreed, for custodial services
rendered with respect to the Decision One Mortgage Loans, during the related Due
Period. The Custodian shall inform the Trustee of the Custodian Fee on or prior
to the related Determination Date pursuant to Section 3.07(h).

            Custodian Fee Rate: As to any Distribution Date, the applicable
Custodian Fee for such Distribution Date, converted to a per annum rate on (i)
the aggregate Stated Principal Balance of the Mortgage Loans as of the first day
of the related Interest Accrual Period and (ii) with respect to the
Determination Date in March 2006 only, the portion of the Closing Date Deposit
Amount allocable to principal (calculated on an actual/360 basis).

            Cut-off Date: February 1, 2006.

            Cut-off Date Pool Principal Balance: The aggregate Stated Principal
Balances of all Mortgage Loans as of the Cut-off Date plus the portion of the
Closing Date Deposit Amount allocable to principal.

            Cut-off Date Principal Balance: As to any Mortgage Loan, the Stated
Principal Balance thereof as of the close of business on the Cut-off Date (after
giving effect to payments of principal due on that date, whether or not
received).

            Data Tape Information: The information provided by the Responsible
Parties as of the Cut-off Date to the Depositor or the Sponsor setting forth the
following information with respect to each Mortgage Loan: (1) the Mortgagor's
name; (2) as to each Mortgage Loan, the Scheduled Principal Balance as of the
Cut-off Date; (3) the Mortgage Rate Cap; (4) the Index; (5) a code indicating
whether the Mortgaged Property is owner occupied; (6) the type of Mortgaged
Property; (7) the first date on which the Scheduled Payment was due on the
Mortgage Loan and, if such date is not consistent with the Due Date currently in
effect, such Due Date; (8) the "paid through date" based on payments received
from the related Mortgagor; (9) the original principal amount of the Mortgage
Loan; (10) with respect to Adjustable Rate Mortgage Loans, the Maximum Mortgage
Rate; (11) the type of Mortgage Loan (i.e., Fixed Rate or Adjustable Rate
Mortgage Loan, First Lien Mortgage Loan or Second Lien Mortgage Loan); (12) a
code indicating the purpose of the loan (i.e., purchase, rate and term
refinance, equity take out refinance); (13) a code indicating the documentation
style (i.e., full, asset verification, income verification and no
documentation); (14) the credit risk score (FICO score); (15) the loan credit
grade classification (as described in the underwriting guidelines); (16) with
respect to each Adjustable Rate Mortgage Loan, the Minimum Mortgage Rate; (17)
the Mortgage Rate at origination; (18) with respect to each Adjustable Rate
Mortgage Loan, the first Adjustment Date immediately following the Cut-off Date;
(19) the value of the Mortgaged Property; (20) a code indicating the type of
Prepayment Charges applicable to such Mortgage Loan (including any prepayment
penalty term), if any; (21) with respect to each Adjustable Rate Mortgage Loan,
the Periodic Mortgage Rate Cap; (22) the applicable Responsible Party with
respect to such Mortgage Loan; (23) with respect to each First Lien Mortgage
Loan, the LTV at origination, and with respect to each Second Lien Mortgage
Loan, the CLTV at origination; and (24) if such Mortgage Loan is covered by a
primary mortgage insurance policy or a lender-paid primary mortgage insurance
policy, the primary mortgage insurance rate. With respect to the Mortgage Loans
in the aggregate, the Data Tape Information shall set forth the following
information, as of the Cut-off Date: (1) the number of Mortgage Loans; (2) the
current aggregate outstanding principal balance of the Mortgage Loans; (3) the
weighted average Mortgage Rate of the Mortgage Loans; and (4) the weighted
average maturity of the Mortgage Loans.

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

            Decision One: Decision One Mortgage Company, LLC, a California
limited liability company, and its successors in interest.

            Decision One Mortgage Loans: The Mortgage Loans purchased by the
Sponsor pursuant to the Decision One Purchase Agreement for which Decision One
is identified as Responsible Party on the Mortgage Loan Schedule.

            Decision One Purchase Agreement: The Second Amended and Restated
Mortgage Loan Purchase and Warranties Agreement, dated as of November 1, 2005,
by and between Decision One and the Sponsor, a copy of which is attached hereto
as Exhibit P.

            Defaulted Swap Termination Payment: Any Swap Termination Payment
required to be paid by the Trust to the Swap Provider pursuant to the Interest
Rate Swap Agreement as a result of an Event of Default (as defined in the
Interest Rate Swap Agreement) with respect to which the Swap Provider is the
defaulting party or a Termination Event (as defined in the Interest Rate Swap
Agreement) (other than Illegality or a Tax Event that is not a Tax Event Upon
Merger (each as defined in the Interest Rate Swap Agreement )) with respect to
which the Swap Provider is the sole Affected Party (as defined in the Interest
Rate Swap Agreement).

            Deficient Valuation: With respect to any Mortgage Loan, a valuation
of the related Mortgaged Property by a court of competent jurisdiction in an
amount less than the then outstanding principal balance of the Mortgage Loan,
which valuation results from a proceeding initiated under the United States
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.

            Deleted Mortgage Loan: As defined in Section 2.03.

            Delinquency Trigger Event: With respect to any Distribution Date, a
Delinquency Trigger Event exists if the quotient (expressed as a percentage) of
(x) the rolling three month average of the aggregate Stated Principal Balance of
60+ Day Delinquent Mortgage Loans (including Mortgage Loans in foreclosure and
Mortgage Loans related to REO Property) and (y) (1) until the aggregate Class
Certificate Balance of the Class A Certificates have been reduced to zero, the
aggregate Stated Principal Balance of the Mortgage Loans for such Distribution
Date equals or exceeds 37.82% of the prior period's Senior Enhancement
Percentage and (2) after the aggregate Class Certificate Balance of the Class A
Certificates have been reduced to zero, the aggregate Stated Principal Balance
of the Mortgage Loans for such Distribution Date equals or exceeds 45.32% of the
prior period's Class M Enhancement Percentage.

            Denomination: With respect to each Certificate, the amount set forth
on the face thereof as the "Initial Certificate Balance of this Certificate" or
the Percentage Interest appearing on the face thereof.

            Depositor: Morgan Stanley Capital I Inc., a Delaware corporation,
and its successors 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 Uniform Commercial Code of
the State of New York.

            Depository Institution: Any depository institution or trust company,
including the Trustee, that (a) is incorporated under the laws of the United
States of America or any State thereof, (b) is subject to supervision and
examination by federal or state banking authorities and (c) has outstanding
unsecured commercial paper or other short-term unsecured debt obligations that
are rated "P-1" by Moody's, "F1+" by Fitch and "A-1" by Standard & Poor's (to
the extent they are Rating Agencies hereunder).

            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: With respect to each Distribution Date, the 18th
day (or if such day is not a Business Day, the immediately preceding Business
Day) in the calendar month in which such Distribution Date occurs.

            Distribution Account: The separate Eligible Account created and
maintained by the Trustee pursuant to Section 3.07(d) in the name of the Trustee
for the benefit of the Certificateholders and designated "Wells Fargo Bank,
National Association in trust for registered Holders of Morgan Stanley Capital I
Inc. Trust 2006-HE1 Mortgage Pass-Through Certificates, Series 2006-HE1." 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,
12:00 noon New York City time on the second Business Day immediately preceding
such Distribution Date.

            Distribution Date: The 25th day of each calendar month, or if such
day is not a Business Day, the next succeeding Business Day, commencing in March
2006.

            Document Certification and Exception Report: The report attached to
Exhibit F hereto.

            Due Date: The day of the month on which the Scheduled Payment is due
on a Mortgage Loan, exclusive of any days of grace.

            Due Period: With respect to any Distribution Date, the period
commencing on the second day of the calendar month preceding the month in which
such Distribution Date occurs and ending on the first day of the calendar month
in which such Distribution Date occurs.

            Eligible Account: Either (i) an account maintained with a federal or
state-chartered depository institution or trust company that complies with the
definition of Eligible Institution, (ii) an account maintained with the
corporate trust department of a federal depository institution or
state-chartered depository institution subject to regulations regarding
fiduciary funds on deposit similar to Title 12 of the U.S. Code of Federal
Regulation Section 9.10(b), which, in either case, has corporate trust powers
and is acting in its fiduciary capacity or (iii) 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.
Each Eligible Account shall be a separate account.

            Eligible Institution: A federal or state-chartered depository
institution or trust company the commercial paper, short-term debt obligations,
or other short-term deposits of which are rated "A-1+" by Standard & Poor's if
the amounts on deposit are to be held in the account for no more than 365 days
(or at least "A-2" by Standard & Poor's if the amounts on deposit are to be held
in the account for no more than 30 days), or the long-term unsecured debt
obligations of which are rated at least "AA-" by Standard & Poor's if the
amounts on deposit are to be held in the account for no more than 365 days, and
the commercial paper, short-term debt obligations or other short-term deposits
of which are rated at least "P-1" by Moody's and "F1+" by Fitch (or a comparable
rating if another Rating Agency is specified by the Depositor by written notice
to the Servicer and the Trustee) (in each case, to the extent they are
designated as Rating Agencies in the Preliminary Statement).

            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 Prohibited
Transaction Exemption ("PTE") 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.

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

            Escrow Account: The Eligible Account or Accounts established and
maintained pursuant to Section 3.09(b).

            Escrow Payments: As defined in Section 3.09(b).

            Event of Default: As defined in Section 7.01.

            Excess Reserve Fund Account: The separate Eligible Account created
and maintained by the Trustee pursuant to Sections 3.07(b) and 3.07(c) in the
name of the Trustee for the benefit of the Regular Certificateholders and
designated "Wells Fargo Bank, National Association in trust for registered
Holders of Morgan Stanley Capital I Inc. Trust 2006-HE1, Mortgage Pass-Through
Certificates, Series 2006-HE1." Funds in the Excess Reserve Fund Account shall
be held in trust for the Regular Certificateholders for the uses and purposes
set forth in this Agreement. Amounts on deposit in the Excess Reserve Fund
Account shall not be invested.

            Excess Subordinated Amount: With respect to any Distribution Date,
the excess, if any, of (a) the Subordinated Amount on such Distribution Date
over (b) the Specified Subordinated Amount for such Distribution Date.

            Exchange Act: The Securities Exchange Act of 1934, as amended.

            Expense Fee Rate: As to each Mortgage Loan, a per-annum rate equal
to the sum of the Servicing Fee Rate, the Trustee Fee Rate, the Custodian Fee
Rate and any lender-paid primary mortgage insurance fee rate, if applicable.

            Expense Fees: As to each Mortgage Loan, the sum of the Servicing
Fee, the Trustee Fee, the Custodian Fee and any lender-paid primary mortgage
insurance fee, if applicable.

            Extra Principal Distribution Amount: As of any Distribution Date,
the lesser of (x) the related Total Monthly Excess Spread for such Distribution
Date and (y) the related Subordination Deficiency for such Distribution Date.

            Fannie Mae: The Federal National Mortgage Association, or any
successor thereto.

            Fannie Mae Guides: The Fannie Mae Sellers' Guide and the Fannie Mae
Servicers' Guide and all amendments or additions thereto.

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

            Final Recovery Determination: With respect to any defaulted Mortgage
Loan or any REO Property (other than any Mortgage Loan or REO Property purchased
by the Responsible Party or the Depositor as contemplated by this Agreement), a
determination made by the Servicer that all Insurance Proceeds, Condemnation
Proceeds, Liquidation Proceeds and other payments or recoveries which the
Servicer, in its reasonable good faith judgment, expects to be finally
recoverable in respect thereof have been so recovered. The Servicer shall
maintain records, prepared by a Servicing Officer, of each Final Recovery
Determination made thereby.

            Final Scheduled Distribution Date: The Final Scheduled Distribution
Date for each Class of Certificates is the Distribution Date in January 2036.

            First Lien Mortgage Loan: A Mortgage Loan secured by a first lien
Mortgage on the related Mortgaged Property.

            Fitch: Fitch, Inc., and its successors in interest. If Fitch is
designated as a Rating Agency in the Preliminary Statement, for purposes of
Section 10.05(e) the address for notices to Fitch shall be Fitch, Inc., One
State Street Plaza, New York, New York 10004, Attention: MBS Monitoring - Morgan
Stanley Capital I Inc. Trust 2006-HE1, or such other address as Fitch may
hereafter furnish to the Depositor, the Trustee and the Servicer.

            Fixed Rate Mortgage Loan: A fixed rate Mortgage Loan.

            Freddie Mac: 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.

            Gross Margin: With respect to each Adjustable Rate Mortgage Loan,
the fixed percentage amount set forth in the related Mortgage Note to be added
to the applicable Index to determine the Mortgage Rate.

            Index: As to each Adjustable Rate Mortgage Loan, the index from time
to time in effect for the adjustment of the Mortgage Rate set forth as such on
the related Mortgage Note.

            Insurance Policy: With respect to 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: With respect to each Mortgage Loan, proceeds of
insurance policies insuring the Mortgage Loan or the related Mortgaged Property.

            Interest Accrual Period: With respect to each Class of Non-Delay
Certificates and the Corresponding Class of Lower-Tier Regular Interests and any
Distribution Date, the period commencing on the Distribution Date occurring in
the month preceding the month in which the current Distribution Date occurs and
ending on the day immediately preceding the current Distribution Date (or, in
the case of the first Distribution Date, the period from and including the
Closing Date to but excluding such first Distribution Date). For purposes of
computing interest accruals on each Class of Non-Delay Certificates, each
Interest Accrual Period has the actual number of days in such month and each
year is assumed to have 360 days.

            Interest Rate Adjustment Date: With respect to each Adjustable Rate
Mortgage Loan, the date, specified in the related Mortgage Note and the Mortgage
Loan Schedule, on which the Mortgage Rate is adjusted.

            Interest Rate Swap Agreement: The interest rate swap agreement,
dated as of the Closing Date, between Morgan Stanley Capital Services Inc. and
the Trustee (a copy of which is attached hereto as Exhibit V).

             Interest Remittance Amount: With respect to any Distribution Date
and the Mortgage Loans, that portion of Available Funds attributable to interest
relating to the Mortgage Loans.

            Investment Account: As defined in Section 3.12(a).

             Investor: With respect to each MERS Designated Mortgage Loan, the
Person named on the MERS System as the investor pursuant to the MERS Procedures
Manual.

            Investor-Based Exemption: Any of Prohibited Transaction Class
Exemption ("PTCE") 84-14 (for transactions by independent "qualified
professional asset managers"), PTCE 90-1 (for transactions by insurance company
pooled separate accounts), PTCE 91-38 (for transactions by bank collective
investment funds), PTCE 95-60 (for transactions by insurance company general
accounts) or PTCE 96-23 (for transactions effected by "in-house asset
managers"), or any comparable exemption available under Similar Law.

            JPMorgan: JPMorgan Chase Bank, National Association, a national
banking association, and its successors in interest.

            LaSalle: LaSalle Bank National Association, a national banking
association, and its successors in interest.

            Late Collections: With respect to any Mortgage Loan and any Due
Period, all amounts received after the Determination Date immediately following
such Due Period, whether as late payments of Scheduled Payments or as Insurance
Proceeds, Condemnation Proceeds, Liquidation Proceeds or otherwise, which
represent late payments or collections of principal and/or interest due (without
regard to any acceleration of payments under the related Mortgage and Mortgage
Note) but delinquent for such Due Period and not previously recovered.

            LIBOR: With respect to any Interest Accrual Period for the Offered
Certificates, the rate determined by the Trustee on the related LIBOR
Determination Date on the basis of the offered rate for one-month U.S. dollar
deposits as such rate appears on Telerate Page 3750 as of 11:00 a.m. (London
time) on such date; provided that if such rate does not appear on Telerate Page
3750, the rate for such date will be determined on the basis of the rates at
which one-month U.S. dollar deposits are offered by the Reference Banks at
approximately 11:00 a.m. (London time) on such date to prime banks in the London
interbank market. In such event, the Trustee shall request the principal London
office of each of the Reference Banks to provide a quotation of its rate. If at
least two such quotations are provided, the rate for that date will be the
arithmetic mean of the quotations (rounded upwards if necessary to the nearest
whole multiple of 1/16%). If fewer than two quotations are provided as
requested, the rate for that date will be the arithmetic mean of the rates
quoted by major banks in New York City, selected by the Trustee (after
consultation with the Depositor), at approximately 11:00 a.m. (New York City
time) on such date for one-month U.S. dollar loans to leading European banks.

            LIBOR Determination Date: With respect to any Interest Accrual
Period for the Offered Certificates, the second London Business Day preceding
the commencement of such Interest Accrual Period.

            Liquidated Mortgage Loan: With respect to any Distribution Date, a
defaulted Mortgage Loan (including any REO Property) which either (a) was
liquidated in the calendar month preceding the month of such Distribution Date
and as to which the Servicer has certified to the Trustee that it has received
all amounts it expects to receive in connection with the liquidation of such
Mortgage Loan including the final disposition of an REO Property, or (b) is a
Second Lien Mortgage Loan (1) that is delinquent 180 days or longer, (2) for
which the related first lien mortgage loan is not a Mortgage Loan, and (3) as to
which the Servicer has certified to the Trustee that it does not believe there
is a reasonable likelihood that any further net proceeds will be received or
recovered with respect to such Second Lien Mortgage Loan.

            Liquidation Proceeds: Cash received in connection with the
liquidation of a Liquidated Mortgage Loan, whether through a trustee's sale,
foreclosure sale or otherwise, including any Subsequent Recoveries.

            Loan-to-Value Ratio or LTV: With respect to any First Lien Mortgage
Loan, the ratio (expressed as a percentage) of the original outstanding
principal amount of the First Lien Mortgage Loan as of the Cut-off Date (unless
otherwise indicated), to the lesser of (a) the Appraised Value of the Mortgaged
Property at origination, and (b) if the First Lien Mortgage Loan was made to
finance the acquisition of the related Mortgaged Property, the purchase price of
the Mortgaged Property.

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

            Lower-Tier Interest Rate: As described in the Preliminary Statement.

            Lower-Tier Principal Amount: As described in the Preliminary
Statement.

            Lower-Tier Regular Interest: Each of the Class LT-A-1, Class LT-A-2,
Class LT-A-3, Class LT-A-4, Class LT-M-1, Class LT-M-2, Class LT-M-3, Class
LT-M-4, Class LT-M-5, Class LT-M-6, Class LT-B-1, Class LT-B-2, Class LT-B-3,
Class LT-IO and Class LT-Accrual Interests as described in the Preliminary
Statement.

            Lower-Tier REMIC: As described in the Preliminary Statement.

            Maximum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, a rate that (i) is set forth on the Data Tape Information and in the
related Mortgage Note and (ii) is the maximum interest rate to which the
Mortgage Rate on such Adjustable Rate Mortgage Loan may be increased during the
lifetime of such Adjustable Rate Mortgage Loan.

            MERS: Mortgage Electronic Registration System, Inc.

            MERS Designated Mortgage Loan: Mortgage Loans for which (a) the
Responsible Parties have designated or will designate MERS as, and has taken or
will take such action as is necessary to cause MERS to be, the mortgagee of
record, as nominee for the Responsible Parties, in accordance with MERS
Procedure Manual and (b) the Responsible Parties have designated or will
designate the Trustee as the Investor on the MERS System.

            MERS Procedures Manual: The MERS Procedures Manual, as it may be
amended, supplemented or otherwise modified from time to time.

            MERS(R) System: MERS mortgage electronic registry system, as more
particularly described in the MERS Procedures Manual.

            Minimum Mortgage Rate: With respect to each Adjustable Rate Mortgage
Loan, a rate that (i) is set forth on the Data Tape Information and in the
related Mortgage Note and (ii) is the minimum interest rate to which the
Mortgage Rate on such Adjustable Rate Mortgage Loan may be decreased during the
lifetime of such Adjustable Rate Mortgage Loan.

            Monthly Statement: The statement delivered to the Certificateholders
pursuant to Section 4.03.

            Moody's: Moody's Investors Service, Inc., and its successors in
interest. 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 Mortgage Pass-Through Group, or such other address
as Moody's may hereafter furnish to the Depositor, the Trustee and the Servicer.

            Mortgage: The mortgage, deed of trust or other instrument identified
on the Mortgage Loan Schedule as securing a Mortgage Note.

            Mortgage File: The items pertaining to a particular Mortgage Loan
contained in either the Servicing File or Custodial File.

            Mortgage Loan: An individual Mortgage Loan which is the subject of
this Agreement, each Mortgage Loan originally sold and subject to this Agreement
being identified on the Mortgage Loan Schedule, which Mortgage Loan includes,
without limitation, the Mortgage File, the Scheduled Payments, Principal
Prepayments, Liquidation Proceeds, Condemnation Proceeds, Insurance Proceeds,
REO Disposition proceeds, Prepayment Charges, and all other rights, benefits,
proceeds and obligations arising from or in connection with such Mortgage Loan,
excluding replaced or repurchased Mortgage Loans.

            Mortgage Loan Schedule: A schedule of Mortgage Loans delivered to
the Trustee and referred to on Schedule I, such schedule setting forth the
following information with respect to each Mortgage Loan: (1) the Mortgage Loan
number; (2) the city, state and zip code of the Mortgaged Property; (3) the
number and type of residential units constituting the Mortgaged Property; (4)
the current Mortgage Rate; (5) the current net Mortgage Rate; (6) the current
Scheduled Payment; (7) with respect to each Adjustable Rate Mortgage Loan, the
Gross Margin; (8) the original term to maturity; (9) the scheduled maturity
date; (10) the principal balance of the Mortgage Loan as of the Cut-off Date
after deduction of payments of principal due on or before the Cut-off Date
whether or not collected; (11) with respect to each Adjustable Rate Mortgage
Loan, the next Interest Rate Adjustment Date; (12) with respect to each
Adjustable Rate Mortgage Loan, the lifetime Mortgage Interest Rate Cap; (13)
whether the Mortgage Loan is convertible or not; (14) the Servicing Fee; (15)
the identity of the Responsible Party and the date such Mortgage Loan was sold
by the applicable Responsible Party to the Sponsor, (16) whether such Mortgage
Loan provides for a Prepayment Charge as well as the term and amount of such
Prepayment Charge, if any; (17) with respect to each First Lien Mortgage Loan,
the LTV at origination, and with respect to each Second Lien Mortgage Loan, the
CLTV at origination; and (18) the date on which servicing of the Mortgage Loan
was transferred to the Servicer.

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

            Mortgage Rate: The annual rate of interest borne on a Mortgage Note,
which shall be adjusted from time to time in the case of an Adjustable Rate
Mortgage Loan.

            Mortgage Rate Caps: With respect to an Adjustable Rate Mortgage
Loan, the Periodic Mortgage Rate Cap, the Maximum Mortgage Rate, and the Minimum
Mortgage Rate for such Mortgage Loan.

            Mortgaged Property: With respect to each Mortgage Loan, the real
property (or leasehold estate, if applicable) identified on the Mortgage Loan
Schedule as securing repayment of the debt evidenced by the related Mortgage
Note.

            Mortgagor: The obligor(s) on a Mortgage Note.

            Net Monthly Excess Cash Flow: For any Distribution Date the amount
remaining for distribution pursuant to subsection 4.02(a)(iii) (before giving
effect to distributions pursuant to such subsection).

            Net Prepayment Interest Shortfall: For any Distribution Date, the
amount by which the sum of the Prepayment Interest Shortfalls for such
Distribution Date exceeds the sum of (i) all Prepayment Interest Excesses for
such Distribution Date and (ii) Compensating Interest payments made with respect
to such Distribution Date.

            Net Swap Payment: With respect to any Distribution Date, any net
payment (other than a Swap Termination Payment) payable by the Trust to the Swap
Provider on the related Fixed Rate Payer Payment Date (as defined in the
Interest Rate Swap Agreement).

            Net Swap Receipt: With respect to any Distribution Date, any net
payment (other than a Swap Termination Payment) made by the Swap Provider to the
Trust on the related Floating Rate Payer Payment Date (as defined in the
Interest Rate Swap Agreement).

            NIM Issuer: The entity established as the issuer of the NIM
Securities.

            NIM Securities: Any debt securities secured or otherwise backed by
some or all of the Class X and Class P Certificates that are rated by one or
more Rating Agencies.

            NIM Trustee: The trustee for the NIM Securities.

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

             Non-Permitted Transferee: A Person other than a Permitted
Transferee.

            Nonrecoverable P&I Advance: Any P&I Advance previously made or
proposed to be made in respect of a Mortgage Loan or REO Property that, in the
good faith business judgment of the Servicer, will not or, in the case of a
proposed P&I Advance, would not be ultimately recoverable from related late
payments, Insurance Proceeds, Condemnation Proceeds, or Liquidation Proceeds on
such Mortgage Loan or REO Property as provided herein.

            Nonrecoverable Servicing Advance: Any Servicing Advances previously
made or proposed to be made in respect of a Mortgage Loan or REO Property,
which, in accordance with Accepted Servicing Practices, will not or, in the case
of a proposed Servicing Advance, would not be ultimately recoverable from
related Insurance Proceeds, Condemnation Proceeds, 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.

            Offered Certificates: As specified in the Preliminary Statement.

            Officer's Certificate: A certificate signed by an officer of the
Servicer or Subservicer with responsibility for the servicing of the Mortgage
Loans required to be serviced by the Servicer or Subservicer and listed on a
list delivered to the Trustee pursuant to this Agreement.

            Opinion of Counsel: A written opinion of counsel, who may be
in-house counsel for the Servicer or the Subservicer, reasonably acceptable to
the Trustee (and/or such other Persons as may be set forth herein), provided
that any Opinion of Counsel relating to (a) qualification of any Trust REMIC or
(b) compliance with the REMIC Provisions, must be (unless otherwise stated in
such Opinion of Counsel) an opinion of counsel who (i) is in fact independent of
the Servicer of the Mortgage Loans, (ii) does not have any material direct or
indirect financial interest in the Servicer of the Mortgage Loans or in an
Affiliate of either and (iii) is not connected with the Servicer of the Mortgage
Loans as an officer, employee, director or person performing similar functions.

            Optional Termination Date: The Distribution Date on which the
aggregate Stated Principal Balance of the Mortgage Loans, as of the last day of
the related Due Period, is equal to 10% or less of the Cut-off Date Pool
Principal Balance.

            OTS: Office of Thrift Supervision, and any successor thereto.

            Outstanding: With respect to 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 which was not the subject of a
Principal Prepayment in Full prior to such Due Date and which did not become a
Liquidated Mortgage Loan prior to such Due Date.

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

            P&I Advance: As to any Mortgage Loan or REO Property, any advance
made by the Servicer in respect of any Remittance Date representing the
aggregate of all payments of principal and interest, net of the Servicing Fee,
that were due during the related Due Period on the Mortgage Loans and that were
delinquent on the related Determination Date, plus certain amounts representing
assumed payments not covered by any current net income on the Mortgaged
Properties acquired by foreclosure or deed in lieu of foreclosure as determined
pursuant to Section 4.01.

            Pass-Through Margin: With respect to each Class of Regular
Certificates (except as set forth in the following sentence), the following
percentages: Class A-1 Certificates, 0.0800%; Class A-2 Certificates, 0.1200%;
Class A-3 Certificates, 0.1800%; Class A-4 Certificates, 0.2900%; Class M-1
Certificates, 0.3700%; Class M-2 Certificates, 0.3900%; Class M-3 Certificates,
0.4100%; Class M-4 Certificates, 0.5300%; Class M-5 Certificates, 0.5600%; Class
M-6 Certificates, 0.6600%; Class B-1 Certificates, 1.2000%; Class B-2
Certificates, 1.4000%; and Class B-3 Certificates, 2.1500%. On the first
Distribution Date after the Optional Termination Date, the Pass-Through Margins
shall increase to: Class A-1 Certificates, 0.1600%; Class A-2 Certificates,
0.2400%; Class A-3 Certificates, 0.3600%; Class A-4 Certificates, 0.5800%; Class
M-1 Certificates, 0.5550%; Class M-2 Certificates, 0.5850%; Class M-3
Certificates, 0.6150%; Class M-4 Certificates, 0.7950%; Class M-5 Certificates,
0.8400%; Class M-6 Certificates, 0.9900%; Class B-1 Certificates, 1.8000%; Class
B-2 Certificates, 2.1000%; and Class B-3 Certificates, 3.2250%.

            Pass-Through Rate: For each Class of Regular Certificates, each
Pooling-Tier REMIC-1 Regular Interest, each Pooling-Tier REMIC-2 Regular
Interest, each Lower-Tier Regular Interest and each Upper-Tier Regular Interest,
the per annum rate set forth or calculated in the manner described in the
Preliminary Statement.

            PCAOB: The Public Company Accounting Oversight Board.

            Percentage Interest: As to any Certificate, the percentage interest
evidenced thereby in distributions required to be made on the related Class,
such percentage interest being set forth on the face thereof or equal to the
percentage obtained by dividing the Denomination of such Certificate by the
aggregate of the Denominations of all Certificates of the same Class.

            Periodic Mortgage Rate Cap: With respect to an Adjustable Rate
Mortgage Loan, the periodic limit on each Mortgage Rate adjustment as set forth
in the related Mortgage Note.

            Permitted Investments: Any one or more of the following obligations
or securities acquired at a purchase price of not greater than par, regardless
of whether issued by the Servicer, the Trustee or any of their respective
Affiliates:

            (i) direct obligations of, or obligations fully guaranteed as to
      timely payment of principal and interest by, the United States or any
      agency or instrumentality thereof, provided such obligations are backed by
      the full faith and credit of the United States;

            (ii) demand and time deposits in, certificates of deposit of, or
      bankers' acceptances (which shall each have an original maturity of not
      more than 90 days and, in the case of bankers' acceptances, shall in no
      event have an original maturity of more than 365 days or a remaining
      maturity of more than 30 days) denominated in United States dollars and
      issued by, any Depository Institution and rated "P-1" by Moody's, "F1+" by
      Fitch and "A-1+" by Standard & Poor's (to the extent they are Rating
      Agencies hereunder and are so rated by such Rating Agency);

            (iii) repurchase obligations with respect to any security described
      in clause (i) above entered into with a Depository Institution (acting as
      principal);

            (iv) securities bearing interest or sold at a discount that are
      issued by any corporation incorporated under the laws of the United States
      of America or any State thereof and that are rated by each Rating Agency
      that rates such securities in its highest long-term unsecured rating
      categories at the time of such investment or contractual commitment
      providing for such investment;

            (v) commercial paper (including both non-interest-bearing discount
      obligations and interest-bearing obligations payable on demand or on a
      specified date not more than 30 days after the date of acquisition
      thereof) that is rated by each Rating Agency that rates such securities in
      its highest short-term unsecured debt rating available at the time of such
      investment;

            (vi) units of money market funds, including money market funds
      advised by the Depositor, the Trustee or an Affiliate thereof, that have
      been rated "Aaa" by Moody's, "AAAm" by Standard & Poor's and at least "AA"
      by Fitch (to the extent they are Rating Agencies hereunder and such funds
      are so rated by such Rating Agency); and

            (vii) if previously confirmed in writing to the Trustee, any other
      demand, money market or time deposit, or any other obligation, security or
      investment, as may be acceptable to the Rating Agencies as a permitted
      investment of funds backing "Aaa" or "AAA" rated securities;

provided, however, that no instrument described hereunder shall evidence either
the right to receive (a) only interest with respect to the obligations
underlying such instrument or (b) both principal and interest payments derived
from obligations underlying such instrument and the interest and principal
payments with respect to such instrument provide a yield to maturity at par
greater than 120% of the yield to maturity at par of the underlying obligations.

            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)
which 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, (iv) rural electric and telephone cooperatives
described in Section 1381(a)(2)(C) of the Code, (v) a Person that is not a U.S.
Person or a U.S. Person with respect to whom income from a Residual Certificate
is attributable to a foreign permanent establishment or fixed base, within the
meaning of an applicable income tax treaty of such Person or any other U.S.
Person, (vi) an "electing large partnership" within the meaning of Section 775
of the Code and (vii) any other Person so designated by the Depositor based upon
an Opinion of Counsel that the Transfer of an Ownership Interest in a Residual
Certificate to such Person may cause any Trust REMIC to fail to qualify as a
REMIC at any time that the Certificates are outstanding. The terms "United
States", "State" and "international organization" shall have the meanings set
forth 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 Freddie Mac, a majority of its board
of directors is not selected by such government unit.

            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.

            Pool Stated Principal Balance: As to any Distribution Date, the
aggregate of the Stated Principal Balances of the Mortgage Loans for such
Distribution Date that were Outstanding Mortgage Loans on the Due Date in the
related Due Period.

            Pooling-Tier Interest Rate: As specified in the Preliminary
Statement.

            Pooling-Tier REMIC-1: As described in the Preliminary Statement.

            Pooling-Tier REMIC-1 Interest Rate: As described in the Preliminary
Statement.

            Pooling-Tier REMIC-1 Principal Amount: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-1 Regular Interest: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-1 WAC Rate: With respect to the Mortgage Loans as
of any Distribution Date, a per annum rate equal to the weighted average of the
Adjusted Net Mortgage Rates for each such Mortgage Loan then in effect on the
beginning of the related Due Period on the Mortgage Loans, adjusted in each case
to accrue on the basis of a 360-day year and the actual number of days in the
related Interest Accrual Period.

            Pooling-Tier REMIC-2: As described in the Preliminary Statement.

            Pooling-Tier REMIC-2 Interest Rate: As described in the Preliminary
Statement.

             Pooling-Tier REMIC-2 IO Interest: Any of the Pooling-Tier REMIC-2
Regular Interests with the designation "IO" in its name.

            Pooling-Tier REMIC-2 IO Notional Balance: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-2 Principal Amount: As described in the
Preliminary Statement.

            Pooling-Tier REMIC-2 Regular Interest: As described in the
Preliminary Statement.

            Prepayment Charge: Any prepayment premium, penalty or charge
collected by the Servicer with respect to a Mortgage Loan from a Mortgagor in
connection with any voluntary Principal Prepayment pursuant to the terms of the
related Mortgage Note.

            Prepayment Interest Excess: With respect to any Distribution Date,
any interest collected by the Servicer as to which a Principal Prepayment in
Full occurs from the 1st day of the month through the 15th day of the month in
which such Distribution Date occurs and that represents interest that accrues
from the 1st day of such month to the date of such Principal Prepayment in Full.

            Prepayment Interest Shortfall: With respect to any Distribution
Date, the sum of, for each Mortgage Loan that was during the portion of the
Prepayment Period from and including the 16th day of the month preceding the
month in which such Distribution Date occurs (or from the day following the
Cut-off Date, in the case of the first Distribution Date) through the last day
of such month, the subject of a Principal Prepayment which is not accompanied by
an amount equal to one month of interest that would have been due on such
Mortgage Loan on the Due Date in the following month and which was applied by
the Servicer to reduce the outstanding principal balance of such Mortgage Loan
on a date preceding such Due Date an amount equal to the product of (a) the
Mortgage Rate net of the Servicing Fee Rate for such Mortgage Loan, (b) the
amount of the Principal Prepayment for such Mortgage Loan, (c) 1/360 and (d) the
number of days commencing on the date on which such Principal Prepayment was
applied and ending on the last day of the calendar month in which the related
Prepayment Period begins.

            Prepayment Period: With respect to any Distribution Date, either (i)
with respect to any voluntary Principal Prepayments in Full, the period from and
including the 16th day of the month preceding the month in which such
Distribution Date occurs (or, in the case of the first Distribution Date, from
and including the Cut-off Date) to and including the 15th day of the month in
which such Distribution Date occurs, or (ii) with respect to any other Principal
Prepayments, the calendar month preceding the month in which such Distribution
Date occurs.

            Principal Distribution Amount: For any Distribution Date, the sum of
(i) the Basic Principal Distribution Amount for such Distribution Date and (ii)
the Extra Principal Distribution Amount for such Distribution Date.

            Principal Prepayment: Any full or partial payment or other recovery
of principal on a Mortgage Loan (including upon liquidation of a Mortgage Loan)
which is received in advance of its scheduled Due Date, excluding any Prepayment
Charge thereon.

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

            Principal Remittance Amount: With respect to any Distribution Date,
the amount equal to the sum of the following amounts (without duplication) with
respect to the related Due Period: (i) each scheduled payment of principal on a
Mortgage Loan due during such Due Period and received by the Servicer on or
prior to the related Determination Date or advanced by the Servicer for the
related Remittance Date, and all Principal Prepayments received during the
related Prepayment Period; (ii) all Liquidation Proceeds, Condemnation Proceeds
and Insurance Proceeds on the Mortgage Loans allocable to principal actually
collected by the Servicer during the related Prepayment Period; (iii) the
portion of the Repurchase Price allocable to principal with respect to each
Mortgage Loan repurchased with respect to such Distribution Date; (iv) all
Substitution Adjustment Amounts allocable to principal received in connection
with the substitutions of Mortgage Loans with respect to such Distribution Date;
(v) with respect to the Distribution Date in March 2006 only, the portion of the
Closing Date Deposit Amount allocable to principal; and (vi) the allocable
portion of the proceeds received with respect to the termination of the Trust
Fund pursuant to clause (a) of Section 9.01 (to the extent such proceeds relate
to principal).

            Private Certificates: As specified in the Preliminary Statement.

            Prospectus Supplement: The Prospectus Supplement, dated February 23,
2006, relating to the Offered Certificates.

            PTCE 95-60: As defined in Section 5.02(b).

            Purchase Agreements: Collectively, the WMC Purchase Agreement and
the Decision One Purchase Agreement.

            Rating Agency: Each of the Rating Agencies specified in the
Preliminary Statement. If such organization or a successor is no longer in
existence, "Rating Agency" shall be such nationally recognized statistical
rating organization, or other comparable Person, as is designated by the
Depositor, notice of which designation shall be given to the Trustee. References
herein to a given rating or rating category of a Rating Agency shall mean such
rating category without giving effect to any modifiers. For purposes of Section
10.05(b), the addresses for notices to each Rating Agency shall be the address
specified therefor in the definition corresponding to the name of such Rating
Agency, or such other address as either such Rating Agency may hereafter furnish
to the Depositor, the Trustee and the Servicer.

            Realized Losses: With respect to any date of determination and any
Liquidated Mortgage Loan, the amount, if any, by which (a) the unpaid principal
balance of such Liquidated Mortgage Loan together with accrued and unpaid
interest thereon exceeds (b) the Liquidation Proceeds with respect thereto net
of the expenses incurred by the Servicer in connection with the liquidation of
such Liquidated Mortgage Loan and net of the amount of unreimbursed Servicing
Advances with respect to such Liquidated Mortgage Loan.

            Record Date: With respect to any Distribution Date, the close of
business on the Business Day immediately preceding such Distribution Date;
provided, however, that for any Certificate issued in definitive form, the
Record Date shall be the close of business on the last Business Day of the month
preceding the month in which such applicable Distribution Date occurs.

            Reference Bank: As defined in Section 4.04.

            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 (January 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 Interest Shortfall: With respect to any Distribution Date
and any Mortgage Loan, any reduction in the amount of interest collectible on
such Mortgage Loan for the most recently ended Due Period as a result of the
application of the Servicemembers Civil Relief Act or any similar state
statutes.

            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.

            Remittance Date: With respect to any Distribution Date, the second
Business Day immediately preceding such Distribution Date.

            REO Disposition: The final sale by the Servicer of any REO Property.

            REO Imputed Interest: As to any REO Property, for any period, an
amount equivalent to interest (at the Mortgage Rate net of the Servicing Fee
Rate that would have been applicable to the related Mortgage Loan had it been
outstanding) on the unpaid principal balance of the Mortgage Loan as of the date
of acquisition thereof (as such balance is reduced pursuant to Section 3.17 by
any income from the REO Property treated as a recovery of principal).

            REO Mortgage Loan: A Mortgage Loan where title to the related
Mortgaged Property has been obtained by the Servicer in the name of the Trustee
on behalf of the Certificateholders.

            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.

            Replacement Swap Provider Payment: Any payments that have been
received by the Trust as a result of entering into a replacement interest rate
swap agreement following an Additional Termination Event described in Part
1(h)(ii) of the Interest Rate Swap Agreement.

            Reportable Event: As defined in Section 8.12(g).

            Repurchase Price: With respect to any Mortgage Loan for which a
breach of a representation and warranty made by the Depositor or a Responsible
Party hereunder exists, an amount equal to the sum of (i) the unpaid principal
balance of such Mortgage Loan as of the date of repurchase, (ii) interest on
such unpaid principal balance of such Mortgage Loan at the Mortgage Rate from
the last date through which interest has been paid and distributed to the
Trustee to the date of repurchase, (iii) all unreimbursed Servicing Advances and
(iv) all costs and expenses incurred by the Trustee arising out of or based upon
such breach, including without limitation, costs and expenses relating to the
Trustee's enforcement of the repurchase obligation of the Depositor or a
Responsible Party hereunder. In addition to the Repurchase Price, the applicable
Responsible Party is obligated to make certain payments for material breaches of
representations and warranties as further set forth in Section 2.03(j) in this
Agreement.

            Request for Release: The Request for Release submitted by the
Servicer to the Trustee or the Custodian, as applicable, substantially in the
form of Exhibit J.

            Residual Certificates: As specified in the Preliminary Statement.

            Responsible Officer: When used with respect to the Trustee, any
managing director, any vice president, any assistant vice president, any
assistant secretary, any assistant treasurer, any associate, 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, such matter is referred
because of such officer's knowledge of and familiarity with the particular
subject and who shall have direct responsibility for the administration of this
Agreement.

            Responsible Parties: WMC and Decision One.

            Rule 144A Letter: As defined in Section 5.02(b).

            Sarbanes Certification: As defined in Section 8.12(c).

            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.

            Second Lien Mortgage Loan: A Mortgage Loan secured by a second lien
Mortgage on the related Mortgaged Property.

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

            Senior Defaulted Swap Termination Payment: As of any date, the
lesser of (x) any Replacement Swap Provider Payment and (y) any Swap Termination
Payment owed to the Swap Provider.

            Senior Enhancement Percentage: With respect to any Distribution
Date, the percentage obtained by dividing (x) the sum of (i) the aggregate Class
Certificate Balance of the Subordinated Certificates and (ii) the Subordinated
Amount, in each case after taking into account the distribution of the Principal
Distribution Amount and any principal payments on those Classes of Certificates
from the Swap Account on that Distribution Date, by (y) the aggregate Stated
Principal Balance of the Mortgage Loans for such Distribution Date.

            Senior Specified Enhancement Percentage: As of any date of
determination, 42.30%.

            Servicer: JPMorgan, and if a successor servicer is appointed
hereunder, such successor.

            Servicer Remittance Report: As defined in Section 4.03(d).

            Servicing Advances: The reasonable "out-of-pocket" costs and
expenses (including legal fees) incurred by the Servicer in the performance of
its servicing obligations in connection with a default, delinquency or other
unanticipated event, including, but not limited to, the cost of (i) the
preservation, restoration, inspection and protection of a Mortgaged Property,
(ii) any enforcement, administrative or judicial proceedings, including
foreclosures and litigation, in respect of a particular Mortgage Loan, (iii) the
management (including reasonable fees in connection therewith) and liquidation
of any REO Property and (iv) the performance of its obligations under Sections
3.01, 3.09, 3.13 and 3.15. The Servicing Advances shall also include any
reasonable "out-of-pocket" costs and expenses (including legal fees) incurred by
the Servicer in connection with executing and recording instruments of
satisfaction, deeds of reconveyance or Assignments of Mortgage in connection
with any foreclosure in respect of any Mortgage Loan to the extent not recovered
from the Mortgagor or otherwise payable under this Agreement. The Servicer shall
not be required to make any Nonrecoverable Servicing Advances.

            Servicing Criteria: The "servicing criteria" set forth in Item
1122(d) of Regulation AB, which as of the Closing Date are listed on Exhibit R
hereto.

            Servicing Fee: With respect to each Mortgage Loan and for any
calendar month, an amount equal to one month's interest (or in the event of any
payment of interest which accompanies a Principal Prepayment in Full made by the
Mortgagor during such calendar month, interest for the number of days covered by
such payment of interest) at the Servicing Fee Rate on the applicable Stated
Principal Balance of such Mortgage Loan as of the first day of such calendar
month. Such fee shall be payable monthly, and shall be pro rated for any portion
of a month during which the Mortgage Loan is serviced by the Servicer under this
Agreement. The Servicing Fee is payable solely from the interest portion
(including recoveries with respect to interest from Liquidation Proceeds,
Insurance Proceeds, Condemnation Proceeds and proceeds received with respect to
REO Properties, to the extent permitted by Section 3.11) of such Scheduled
Payment collected by the Servicer, or as otherwise provided under Section 3.11.

            Servicing Fee Rate: With respect to each Mortgage Loan, 0.50% per
annum.

            Servicing File: With respect to each Mortgage Loan, the file
retained by the Servicer consisting of originals or copies of all documents in
the Mortgage File which are not delivered to the Trustee or the Custodian, as
applicable, in the Custodial File and copies of the Mortgage Loan Documents set
forth in Exhibit K hereto.

            Servicing Function Participant: As defined in Section 3.23(a).

            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
such list may from time to time be amended.

            Servicing Transfer Date: With respect to any Mortgage Loan, the date
on which servicing of such Mortgage Loan was transferred to the Servicer (as set
forth on the Mortgage Loan Schedule).

            Similar Law: As defined in Section 5.02(b).

            60+ Day Delinquent Mortgage Loan: (i) Each Mortgage Loan with
respect to which any portion of a Scheduled Payment is, as of the last day of
the prior Due Period, two months or more past due (without giving effect to any
grace period), including, without limitation, such Mortgage Loans that are
subject to bankruptcy proceedings, (ii) each Mortgage Loan in foreclosure and
(iii) all REO Property.

            Specified Subordinated Amount: Prior to the Stepdown Date, an amount
equal to 3.85% of the Cut-off Date Pool Principal Balance. On and after the
Stepdown Date, an amount equal to 7.70% of the aggregate Stated Principal
Balance of the Mortgage Loans for such Distribution Date, subject, until the
Class Certificate Balance of each Class of Offered Certificates has been reduced
to zero, to a minimum amount equal to 0.50% of the Cut-off Date Pool Principal
Balance; provided, however, that if, on any Distribution Date, a Trigger Event
exists, the Specified Subordinated Amount shall not be reduced to the applicable
percentage of the then current aggregate Stated Principal Balance of the
Mortgage Loans until the Distribution Date on which a Trigger Event no longer
exists. When the Class Certificate Balance of each Class of Offered Certificates
has been reduced to zero, the Specified Subordinated Amount will thereafter
equal zero.

            Sponsor: Morgan Stanley Mortgage Capital Inc., a New York
corporation, and its successors in interest, as purchaser of the Mortgage Loans
under each of the Purchase Agreements.

            Standard & Poor's: Standard & Poor's Ratings Services, a division of
The McGraw-Hill Companies, Inc., and its successors in interest. If Standard &
Poor's is designated as a Rating Agency in the Preliminary Statement, for
purposes of Section 10.05(b) the address for notices to Standard & Poor's shall
be Standard & Poor's, 55 Water Street, New York, New York 10041, Attention:
Residential Mortgage Surveillance Group - Morgan Stanley Capital I Inc. Trust
2006-HE1, or such other address as Standard & Poor's may hereafter furnish to
the Depositor, the Trustee and the Servicer.

            Standard & Poor's Glossary: The Standard & Poor's LEVELS(R)
Glossary, as may be in effect from time to time.

            Startup Day: The Closing Date.

            Stated Principal Balance: As to each Mortgage Loan and as of any
date of determination, (i) the principal balance of the Mortgage Loan at the
Cut-off Date after giving effect to payments of principal due on or before such
date (whether or not received), minus (ii) all amounts previously remitted to
the Trustee with respect to the related Mortgage Loan representing payments or
recoveries of principal including advances in respect of scheduled payments of
principal. For purposes of any Distribution Date, the Stated Principal Balance
of any Mortgage Loan will give effect to any scheduled payments of principal
received by the Servicer on or prior to the related Determination Date or
advanced by the Servicer for the related Remittance Date and any unscheduled
principal payments and other unscheduled principal collections received during
the related Prepayment Period, and the Stated Principal Balance of any Mortgage
Loan that has prepaid in full or has become a Liquidated Mortgage Loan during
the related Prepayment Period shall be zero.

            Stepdown Date: The later to occur of (i) the earlier to occur of (a)
the Distribution Date in March 2009 and (b) the Distribution Date following the
Distribution Date on which the aggregate Class Certificate Balances of the Class
A Certificates have been reduced to zero and (ii) the first Distribution Date on
which the Senior Enhancement Percentage (calculated for this purpose only after
taking into account payments of principal on the Mortgage Loans applied to
reduce the Stated Principal Balances of the Mortgage Loans for the applicable
Distribution Date but prior to any allocation of the Principal Distribution
Amount and principal payments from the Swap Account to the Certificates on such
Distribution Date) is greater than or equal to the Senior Specified Enhancement
Percentage.

            Subcontractor: Any third-party or Affiliated vendor, subcontractor
or other Person utilized by the Servicer, a Subservicer, the Trustee or the
Custodian, as applicable, 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 Mortgage Loans.

            Subordinated Amount: With respect to any Distribution Date, the
excess, if any, of (a) the aggregate Stated Principal Balance of the Mortgage
Loans for such Distribution Date over (b) the aggregate of the Class Certificate
Balances of the Offered Certificates as of such Distribution Date (after giving
effect to the payment of the Principal Remittance Amount on such Certificates on
such Distribution Date).

            Subordinated Certificates: As specified in the Preliminary
Statement.

            Subordination Deficiency: With respect to any Distribution Date, the
excess, if any, of (a) the Specified Subordinated Amount applicable to such
Distribution Date over (b) the Subordinated Amount applicable to such
Distribution Date.

            Subordination Reduction Amount: With respect to any Distribution
Date, an amount equal to the lesser of (a) the Excess Subordinated Amount and
(b) the Net Monthly Excess Cash Flow.

            Subsequent Recovery: With respect to any Mortgage Loan or related
Mortgaged Property that became a Liquidated Mortgage Loan or was otherwise
disposed of, all amounts received in respect of such Liquidated Mortgage Loan
after an Applied Realized Loss Amount related to such Mortgage Loan or Mortgaged
Property is allocated to reduce the Class Certificate Balance of any Class of
Subordinated Certificates. Any Subsequent Recovery that is received during a
Prepayment Period will be treated as Liquidation Proceeds and included as part
of the Principal Remittance Amount for the related Distribution Date.

            Subservicer: Any Person that services Mortgage Loans on behalf of
the Servicer or any Subservicer and is responsible for the performance (whether
directly or through Subservicers or Subcontractors) of a substantial portion of
the material servicing functions required to be performed by the Servicer under
this Agreement, with respect to some or all of the Mortgage Loans, that are
identified in Item 1122(d) of Regulation AB.

            Subservicing Account: As defined in Section 3.08.

            Subservicing Agreements: As defined in Section 3.02(a).

            Substitute Mortgage Loan: A Mortgage Loan (i) substituted by the
Depositor or the applicable Responsible Party for a Deleted Mortgage Loan that
satisfies the criteria set forth in the definition of "Qualified Substitute
Mortgage Loan" in the applicable Purchase Agreement or (ii) substituted by the
Depositor for a Deleted Mortgage Loan, which, if substituted by the Depositor,
must, on the date of such substitution, as confirmed in a Request for Release,
substantially in the form of Exhibit J, (a) 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; (b) be accruing interest
at a rate no lower than and not more than 1% per annum higher than, that of the
Deleted Mortgage Loan; (c) have a Loan-to-Value Ratio or a Combined
Loan-to-Value Ratio, as applicable, no higher than that of the Deleted Mortgage
Loan; (d) have a remaining term to maturity no greater than (and not more than
one year less than that of) the Deleted Mortgage Loan; and (e) comply with each
representation and warranty set forth in Section 2.03.

            Substitution Adjustment Amount: As defined in Section 2.03.

            Swap Account: As defined in Section 4.06.

            Swap Assets: Collectively, the Swap Account, the Interest Rate Swap
Agreement, the Class IO Interest and the right to receive Class IO Shortfalls,
subject to the obligation to pay amounts specified in Section 4.06.

            Swap LIBOR: With respect to any Distribution Date (and the related
Interest Accrual Period), the product of (i) USD-LIBOR-BBA (as used in the
Interest Swap Agreement), (ii) two, and (iii) the quotient of (a) the actual
number of days in the Interest Accrual Period for the Offered Certificates
divided by (b) 30.

            Swap Payment Allocation: For any Class of Certificates and any
Distribution Date, that Class's pro rata share of the Net Swap Receipts, if any,
for that Distribution Date, based on the Class Certificate Balances of the
Classes of Certificates.

            Swap Payment Rate: For any Distribution Date, a fraction, the
numerator of which is any Net Swap Payment or Swap Termination Payment owed to
the Swap Provider for such Distribution Date and the denominator of which is the
aggregate Stated Principal Balance of the Mortgage Loans at the beginning of the
related Due Period, multiplied by 12.

            Swap Provider: Morgan Stanley Capital Services Inc., a Delaware
corporation, and its successors in interest.

            Swap Termination Payment: Any payment payable by the Trust or the
Swap Provider upon termination of the Interest Rate Swap Agreement as a result
of an Event of Default (as defined in the Interest Rate Swap Agreement) or a
Termination Event (as defined in the Interest Rate Swap Agreement).

            Tax Matters Person: The Holder of the Class R Certificates
designated as "tax matters person" of each Trust REMIC in the manner provided
under Treasury Regulations Section 1.860F-4(d) and Treasury Regulations Section
301.6231(a)(7)-1.

            Tax Service Contract: As defined in Section 3.09(a).

            Telerate Page 3750: The display page currently so designated on the
Bridge Telerate Service (or such other page as may replace that page on that
service for displaying comparable rates or prices).

            Total Monthly Excess Spread: As to any Distribution Date, an amount
equal to the excess if any, of (i) the interest on the Mortgage Loans received
by the Servicer on or prior to the related Determination Date (other than
Prepayment Interest Excesses) or advanced by the Servicer for the related
Remittance Date (net of Expense Fees) over (ii) the sum of (A) the amounts
payable to the Certificates pursuant to Section 4.02(a)(i) on such Distribution
Date and (B) any Net Swap Payments to the Swap Provider.

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

            Transfer Affidavit: As defined in Section 5.02(c).

            Transferor Certificate: As defined in Section 5.02(b).

            Trigger Event: Either a Cumulative Loss Trigger Event or a
Delinquency Trigger Event.

             Trust: The express trust created hereunder in Section 2.01(c).

            Trust Fund: The corpus of the trust created hereunder consisting of
(i) the Mortgage Loans and all interest and principal with respect thereto
received on or after the related Cut-off Date, other than such amounts which
were due on the Mortgage Loans on or prior to the related Cut-off Date; (ii) the
Collection Account, Excess Reserve Fund Account, the Distribution Account, and
all amounts deposited therein pursuant to the applicable provisions of this
Agreement; (iii) property that secured a Mortgage Loan and has been acquired by
foreclosure, deed-in-lieu of foreclosure or otherwise; (iv) the Closing Date
Deposit Amount; (v) the Interest Rate Swap Agreement; (vi) the Swap Assets; and
(vii) all proceeds of the conversion, voluntary or involuntary, of any of the
foregoing.

            Trust REMIC: Any of Pooling-Tier REMIC-1, Pooling-Tier REMIC-2, the
Lower-Tier REMIC or the Upper-Tier REMIC, as applicable.

            Trustee: Wells Fargo Bank, National Association, a national banking
association, and its successors in interest and, if a successor trustee is
appointed hereunder, such successor.

            Trustee Fee: As to any Distribution Date, an amount equal to the
product of (a) one-twelfth of the Trustee Fee Rate and (b) (i) the aggregate
Stated Principal Balance of the Mortgage Loans as of the first day of the
related Interest Accrual Period and (ii) with respect to the Distribution Date
in March 2006 only, the portion of the Closing Date Deposit Amount allocable to
principal.

            Trustee Fee Rate: With respect to each Mortgage Loan, 0.0025% per
annum.

            Trustee Float Period: With respect to the Distribution Date and the
related amounts in the Distribution Account, the period commencing on the
Business Day immediately preceding such Distribution Date and ending on such
Distribution Date.

            Underwriters' Exemption: Any exemption listed under footnote 1 of,
and amended by, Prohibited Transaction Exemption 2002-41, 67 Fed. Reg. 54487
(2002), or any successor exemption.

            Underwriting Guidelines: The underwriting guidelines attached to the
Purchase Agreements.

            Unpaid Interest Amount: As of any Distribution Date and any Class of
Certificates, the sum of (a) the portion of the Accrued Certificate Interest
Distribution Amount from Distribution Dates prior to the current Distribution
Date remaining unpaid immediately prior to the current Distribution Date and (b)
interest on the amount in clause (a) above at the applicable Pass-Through Rate
(to the extent permitted by applicable law).

            Unpaid Realized Loss Amount: With respect to any Class of
Subordinated Certificates and as to any Distribution Date, is the excess of (i)
the Applied Realized Loss Amounts with respect to such Class over (ii) the sum
of (a) all distributions in reduction of such Applied Realized Loss Amounts on
all previous Distribution Dates, and (b) the amount by which the Class
Certificate Balance of such Class has been increased due to the distribution of
any Subsequent Recoveries on all previous Distribution Dates. Any amounts
distributed to a Class of Subordinated Certificates in respect of any Unpaid
Realized Loss Amount will not be applied to reduce the Class Certificate Balance
of such Class.

            Upper-Tier CarryForward Amount: With respect to each Class of
Offered Certificates, as of any Distribution Date, the sum of (A) if on such
Distribution Date the Upper-Tier Interest Rate for the Class of Corresponding
Upper-Tier REMIC Regular Interest is based upon the Upper-Tier REMIC WAC Rate,
the excess, if any, of (i) the amount of interest such Class of Upper-Tier
Regular Interest would otherwise be entitled to receive on such Distribution
Date had such Upper-Tier REMIC Regular Interest not been subject to the
Upper-Tier REMIC WAC Rate, over (ii) the amount of interest payable on such
Class of Certificates on such Distribution Date taking into account the
Upper-Tier REMIC WAC Rate and (B) the Upper-Tier CarryForward Amount for such
Class of Certificates for all previous Distribution Dates not previously paid,
together with interest thereon at a rate equal to the applicable Upper-Tier
Interest Rate for such Class of Certificates for such Distribution Date, without
giving effect to the Upper-Tier REMIC WAC Rate.

            Upper-Tier Interest Rate: As described in the Preliminary Statement.

            Upper-Tier Regular Interest: As described in the Preliminary
Statement.

            Upper-Tier REMIC: As described in the Preliminary Statement.

            Upper-Tier REMIC WAC Rate: For any Distribution Date, the weighted
average of the Lower-Tier Interest Rates on the Lower-Tier Regular Interests
(other than the Class LT-IO Interest) as of the first day of the related
Interest Accrual Period, weighted on the basis of the Lower-Tier Principal
Amounts of such Lower-Tier Regular Interests as of the first day of the related
Interest Accrual Period.

            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 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 prior to such date, may elect to continue to
be U.S. Persons.

            Voting Rights: The portion of the voting rights of all of the
Certificates which is allocated to any Certificate. As of any date of
determination, (a) 1% of all Voting Rights shall be allocated to the Class X
Certificates, if any (such Voting Rights to be allocated among the holders of
Certificates of each such Class in accordance with their respective Percentage
Interests), (b) 1% of all Voting Rights shall be allocated to the Class P
Certificates, if any, and (c) the remaining Voting Rights shall be allocated
among Holders of the remaining Classes of Certificates in proportion to the
Certificate Balances of their respective Certificates on such date.

            WAC Cap: With respect to the Mortgage Loans as of any Distribution
Date, the weighted average of the Adjusted Net Mortgage Rates then in effect on
the beginning of the related Due Period on the Mortgage Loans minus the Swap
Payment Rate, adjusted in each case to accrue on the basis of a 360-day year and
the actual number of days in the related Interest Accrual Period.

            WMC: WMC Mortgage Corp., a California corporation, and its
successors in interest.

            WMC Mortgage Loans: The Mortgage Loans purchased by the Sponsor
pursuant to the WMC Purchase Agreement for which WMC is identified as
Responsible Party on the Mortgage Loan Schedule.

            WMC Purchase Agreement: The Second Amended and Restated Mortgage
Loan Purchase and Warranties Agreement, dated as of October 1, 2005, by and
between WMC and the Sponsor, a copy of which is attached hereto as Exhibit P.

                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                          REPRESENTATIONS AND WARRANTIES

            Section 2.01 Conveyance of Mortgage Loans. (a) The Depositor,
concurrently with the execution and delivery hereof, hereby sells, transfers,
assigns, sets over and otherwise conveys to the Trustee for the benefit of the
Certificateholders, without recourse, all the right, title and interest of the
Depositor in and to the Trust Fund, and the Trustee, on behalf of the Trust,
hereby accepts the Trust Fund.

            (b) In connection with the transfer and assignment of each Mortgage
Loan, the Depositor has delivered or caused to be delivered to the Custodian
with respect to the Decision One Mortgage Loans, and to the Trustee with respect
to the remaining 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 bearing all intervening endorsements,
      endorsed "Pay to the order of _____________, without recourse" and signed
      (which may be by facsimile signature) in the name of the last endorsee by
      an authorized officer. To the extent that there is no room on the face of
      the Mortgage Note for endorsements, the endorsement may be contained on an
      allonge, unless the Trustee is advised in writing by the applicable
      Responsible Party (pursuant to the applicable Purchase Agreement) that
      state law does not so allow;

            (ii) the original of any guaranty executed in connection with the
      Mortgage Note;

            (iii) the original Mortgage with evidence of recording thereon or a
      certified true copy of such Mortgage submitted for recording. If, in
      connection with any Mortgage Loan, the original Mortgage cannot be
       delivered with evidence of recording thereon on or prior to the Closing
      Date because of a delay caused by the public recording office where such
      Mortgage has been delivered for recordation or because such Mortgage has
      been lost or because such public recording office retains the original
      recorded Mortgage, the applicable Responsible Party shall deliver or cause
      to be delivered to the Custodian or Trustee, as applicable, a photocopy of
      such Mortgage certified by the applicable Responsible Party to be a true
      and complete copy of such Mortgage and shall forward to the Custodian or
      Trustee, as applicable, such original recorded Mortgage within 14 days
      following the applicable Responsible Party's receipt of such Mortgage from
      the applicable public recording office; or in the case of a Mortgage where
      a public recording office retains the original recorded Mortgage or in the
      case where a Mortgage is lost after recordation in a public recording
      office, a copy of such Mortgage certified by such public recording office
      to be a true and complete copy of the original recorded Mortgage;

            (iv) the originals of all assumption, modification, consolidation or
      extension agreements, with evidence of recording thereon or a certified
      true copy of such agreement submitted for recording;

            (v) the original Assignment of Mortgage for each Mortgage Loan
      endorsed in blank (except with respect to MERS Designated Mortgage Loans);

            (vi) the originals of all intervening assignments of Mortgage (if
      any) evidencing a complete chain of assignment from the applicable
      originator (or MERS with respect to each MERS Designated Mortgage Loan) to
      the last endorsee with evidence of recording thereon or a certified true
      copy of such intervening assignments of Mortgage submitted for recording,
      or if any such intervening assignment has not been returned from the
      applicable recording office or has been lost or if such public recording
      office retains the original recorded assignments of Mortgage, the
      applicable Responsible Party shall deliver or cause to be delivered a
      photocopy of such intervening assignment, certified by the applicable
      Responsible Party to be a true and complete copy of such intervening
      assignment and shall forward to the Custodian or Trustee, as applicable,
      such original recorded intervening assignment within 14 days following the
       applicable Responsible Party's receipt of such from the applicable public
      recording office; or in the case of an intervening assignment where a
      public recording office retains the original recorded intervening
      assignment or in the case where an intervening assignment is lost after
      recordation in a public recording office, a copy of such intervening
      assignment certified by such public recording office to be a true and
      complete copy of the original recorded intervening assignment;

            (vii) the original mortgagee title insurance policy or, in the event
      such original title policy is unavailable, a certified true copy of the
      related policy binder or commitment for title certified to be true and
      complete by the title insurance company; and

            (viii) the original of any security agreement, chattel mortgage or
      equivalent document executed in connection with the Mortgage (if
      provided).

            The applicable Responsible Party shall cause to be delivered to the
Custodian or Trustee, as applicable, the applicable recorded document promptly
upon receipt from the respective recording office but, solely with respect to
the WMC Mortgage Loans, in no event later than one year from the date such
Mortgage Loan was sold by WMC to the Sponsor.

            If any Mortgage has been recorded in the name of Mortgage Electronic
Registration System, Inc. ("MERS") or its designee, no Assignment of Mortgage in
favor of the Trustee will be required to be prepared or delivered and instead,
the Servicer shall take all reasonable actions as are necessary at the expense
of the applicable Responsible Party to cause the Trust to be shown as the owner
of the related Mortgage Loan on the records of MERS for the purpose of the
system of recording transfers of beneficial ownership of mortgages maintained by
MERS.

            From time to time, the Depositor or the Servicer, as applicable,
shall forward to the Custodian or Trustee, as applicable, additional original
documents, additional documents evidencing an assumption, modification,
consolidation or extension of a Mortgage Loan in accordance with the terms of
this Agreement upon receipt of such documents. All such mortgage documents held
by the Custodian or Trustee, as applicable, as to each Mortgage Loan shall
constitute the "Custodial File".

            On or prior to the Closing Date, each Responsible Party shall
deliver to the Custodian or Trustee, as applicable, Assignments of Mortgages, in
blank, for each Mortgage Loan. The Responsible Parties shall cause the
Assignments of Mortgages and complete recording information to be provided to
the Servicer in a reasonably acceptable manner. No later than thirty (30)
Business Days following the later of the Closing Date and the date of receipt by
the Servicer of the complete recording information for a Mortgage, the Servicer
shall promptly submit or cause to be submitted for recording, at the expense of
the applicable Responsible Party as required pursuant to the related Purchase
Agreement and at no expense to the Trust Fund, the Trustee, the Servicer, or the
Depositor, in the appropriate public office for real property records, each
Assignment of Mortgage referred to in Section 2.01(b)(v). Notwithstanding the
foregoing, however, for administrative convenience and facilitation of servicing
and to reduce closing costs, the Assignments of Mortgage shall not be required
to be completed and submitted for recording with respect to any Mortgage Loan
(i) if the Trustee, the Custodian and each Rating Agency have received an
Opinion of Counsel, satisfactory in form and substance to the Trustee and each
Rating Agency to the effect that the recordation of such Assignments of Mortgage
in any specific jurisdiction is not necessary to protect the Trustee's interest
in the related Mortgage Note, (ii) if such Mortgage Loan is a MERS Designated
Mortgage Loan or (iii) if the Rating Agencies have each notified the Depositor
in writing that not recording any such Assignments of Mortgage would not cause
the initial ratings on any Offered Certificates to be downgraded or withdrawn;
provided, however, that the Servicer shall not be held responsible or liable for
any loss that occurs because an Assignment of Mortgage was not recorded, but
only to the extent the Servicer does not have prior knowledge of the act or
omission that causes such loss. However, with respect to the Assignments of
Mortgage referred to in clauses (i) and (ii) above, if foreclosure proceedings
occur against a Mortgaged Property, the Servicer shall record such Assignment of
Mortgage at the expense of the applicable Responsible Party (and at no expense
to the Servicer) as required pursuant to the related Purchase Agreement. If the
Assignment of Mortgage is to be recorded, the Mortgage shall be assigned to
"Wells Fargo Bank, National Association, as trustee under the Pooling and
Servicing Agreement dated as of February 1, 2006, Morgan Stanley Capital I Inc.
Trust 2006-HE1." In the event that any such Assignment of Mortgage is lost or
returned unrecorded because of a defect therein, the applicable Responsible
Party shall promptly cause to be delivered a substitute Assignment of Mortgage
to cure such defect and thereafter cause each such assignment to be duly
recorded.

             In the event that such original or copy of any document submitted
for recordation to the appropriate public recording office is not so delivered
to the Custodian or Trustee, as applicable, within one year following the date
such Mortgage Loan was sold by such Responsible Party to the Sponsor, and in the
event that such Responsible Party does not cure such failure within 30 days of
discovery or receipt of written notification of such failure from the Depositor,
the related Mortgage Loan shall, upon the request of the Depositor, be
repurchased by such Responsible Party at the price and in the manner specified
in Section 2.03. The foregoing repurchase obligation shall not apply in the
event that the applicable Responsible Party cannot deliver such original or copy
of any document submitted for recordation to the appropriate public recording
office within the specified period due to a delay caused by the recording office
in the applicable jurisdiction; provided, that such Responsible Party shall
instead deliver a recording receipt of such recording office or, if such
recording receipt is not available, an officer's certificate of an officer of
such Responsible Party, confirming that such document has been accepted for
recording.

            Notwithstanding anything to the contrary contained in this Section
2.01, in those instances where the public recording office retains or loses the
original Mortgage or assignment after it has been recorded, the obligations of
the applicable Responsible Party shall be deemed to have been satisfied upon
delivery by the applicable Responsible Party to the Custodian or Trustee, as
applicable, prior to the Closing Date of a copy of such Mortgage or assignment,
as the case may be, certified (such certification to be an original thereof) by
the public recording office to be a true and complete copy of the recorded
original thereof.

            On or prior to the Closing Date, the Depositor shall deliver to the
Custodian or Trustee, as applicable, a copy of the Data Tape Information in an
electronic, machine readable medium in a form acceptable to the Depositor and
the Trustee.

            (c) The Depositor does hereby establish, pursuant to the further
provisions of this Agreement and the laws of the State of New York, an express
trust (the "Trust") to be known, for convenience, as "MORGAN STANLEY CAPITAL I
INC. TRUST 2006-HE1" and Wells Fargo Bank, National Association is hereby
appointed as Trustee in accordance with the provisions of this Agreement. The
parties hereto acknowledge and agree that it is the policy and intention of the
Trust to acquire only Mortgage Loans meeting the requirements set forth in this
Agreement, including without limitation, the representations and warranties set
forth in paragraph (43) of Schedule III and paragraph (yy) of Schedule V to this
Agreement. The Trust's fiscal year is the calendar year.

            (d) The Trust shall have the capacity, power and authority, and the
Trustee on behalf of the Trust is hereby authorized, to accept the sale,
transfer, assignment, set over and conveyance by the Depositor to the Trust of
all the right, title and interest of the Depositor in and to the Trust Fund
(including, without limitation, the Mortgage Loans) pursuant to Section 2.01(a).
The Trustee on behalf of the Trust is hereby directed to enter into the Interest
Rate Swap Agreement.

            Section 2.02 Acceptance by the Trustee of the Mortgage Loans. The
Trustee and the Custodian shall acknowledge, on the Closing Date, receipt by the
Trustee or the Custodian, as applicable, of the documents identified in the
Initial Certification in the form annexed hereto as Exhibit E, and declares that
it holds and will hold such documents and the other documents delivered to it
pursuant to Section 2.01, 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 and the Custodian shall
maintain possession of the related Mortgage Notes in the States of California,
Minnesota or Utah unless otherwise permitted by the Rating Agencies.

            In connection with the Closing Date, the Trustee and the Custodian
shall be required to deliver via facsimile (with original to follow the next
Business Day) to the Depositor and the Servicer an Initial Certification prior
to the Closing Date, or, with the Depositor's consent, on the Closing Date,
certifying receipt of a Mortgage Note and Assignment of Mortgage for each
applicable Mortgage Loan. Neither the Trustee nor the Custodian shall be
responsible to verify the validity, sufficiency or genuineness of any document
in any Custodial File.

            Within 90 days after the Closing Date, the Trustee and the Custodian
shall, for the benefit of the Holders of the Certificates, ascertain that all
documents identified in the Document Certification and Exception Report in the
form attached hereto as Exhibit F are in its possession, and shall deliver to
the Depositor and the Servicer and to the Trustee, if delivered by the
Custodian, a Document Certification and Exception Report, in the form annexed
hereto as Exhibit F, to the effect that, as to each applicable Mortgage Loan
listed in the Mortgage Loan Schedule (other than any Mortgage Loan paid in full
or any Mortgage Loan specifically identified in such certification as an
exception and not covered by such certification): (i) all documents identified
in the Document Certification and Exception Report and required to be reviewed
by it are in its possession; (ii) such documents have been reviewed by it and
appear regular on their face and relate to such Mortgage Loan; (iii) based on
its examination and only as to the foregoing documents, the information set
forth in items (1), (2) and (7) of the Mortgage Loan Schedule and items (1), (9)
and (17) of the Data Tape Information respecting such Mortgage Loan accurately
reflects the information set forth in the Custodial File; and (iv) each Mortgage
Note has been endorsed as provided in Section 2.01 of this Agreement. Neither
the Trustee nor the Custodian shall be responsible to verify the validity,
sufficiency or genuineness of any document in any Custodial File.

            Within 90 days after the Closing Date, the Servicer (for the benefit
of the Holders of the Certificates, based solely on the list of MERS Designated
Mortgage Loans and screen printouts from the MERS System provided to the
Servicer by each applicable Responsible Party no later than 45 days after the
Closing Date) shall confirm, on behalf of the Trust, that the Trustee is shown
as the Investor with respect to each MERS Designated Mortgage Loan on such
screen printouts. If the Trustee is not shown as the Investor with respect to
any MERS Designated Mortgage Loans on such screen printouts, the Servicer shall
promptly notify the applicable Responsible Party of such fact, and such Person
shall then either cure such defect or repurchase such Mortgage Loan in
accordance with Section 2.03.

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

            Each Responsible Party shall deliver to the Servicer copies of all
trailing documents required to be included in the Custodial File at the same
time the original or certified copies thereof are delivered to the Trustee or to
the Custodian, as applicable, including but not limited to such documents as the
title insurance policy and any other Mortgage Loan Documents upon return from
the public recording office. Such documents shall be delivered by the applicable
Responsible Party at such Responsible Party's expense to the Servicer.

            Section 2.03 Representations and Warranties; Remedies for Breaches
of Representations and Warranties with Respect to the Mortgage Loans. (a) The
Servicer hereby makes the representations and warranties set forth in Schedule
II hereto to the Depositor and the Trustee as of the dates set forth in such
Schedule.

            (b) WMC hereby makes the representations and warranties, set forth
in Schedule III and Schedule IV hereto, to the Depositor, the Servicer and the
Trustee as of the dates set forth in such Schedules. Decision One hereby makes
the representations and warranties, set forth in Schedule VI hereto, to the
Depositor, the Servicer and the Trustee as of the dates set forth in such
Schedule.

            (c) LaSalle hereby makes the representations and warranties set
forth in Schedule VII hereto to the Trustee as of the dates set forth in such
Schedule.

            (d) The Depositor hereby makes the representations and warranties
set forth in Schedules V hereto to the Trustee as of the dates set forth in such
Schedule.

            (e) It is understood and agreed by the parties hereto that the
representations and warranties set forth in this Section 2.03 shall survive the
transfer of the Mortgage Loans by the Depositor to the Trustee, and shall inure
to the benefit of the parties to whom the representations and warranties were
made notwithstanding any restrictive or qualified endorsement on any Mortgage
Note or Assignment of Mortgage or the examination or failure to examine any
Mortgage File. Upon discovery by any of the Responsible Parties, the Depositor,
the Trustee, the Custodian or the Servicer of a breach of any of the foregoing
representations and warranties that materially and adversely affect the value of
any Mortgage Loan or the interest of the Trustee or the Certificateholders
therein, the party discovering such breach shall give prompt written notice to
the other parties.

            (f) Upon discovery by any of the parties hereto of a breach of a
representation or warranty made by a Responsible Party under this Agreement,
that materially and adversely affects the value of any Mortgage Loan or the
interests of the Trustee or the Certificateholders therein, the party
discovering such breach shall give prompt written notice thereof to the other
parties. Upon receiving written notice of a breach of a representation and
warranty or written notice that a Mortgage Loan does not constitute a "qualified
mortgage" within the meaning of Section 860G(a)(3) of the Code, the Trustee
shall in turn notify the applicable Responsible Party in writing to correct or
cure, in accordance with this Agreement, any such breach of a representation or
warranty made by the applicable Responsible Party under this Agreement within
sixty (60) days from the date of notice from the Trustee or the discovery by the
applicable Responsible Party of the breach, and if the applicable Responsible
Party fails or is unable to correct or cure the defect or breach within such
period, the Trustee shall notify the Depositor of such failure to correct or
cure. Unless otherwise directed by the Depositor within five (5) Business Days
after notifying the Depositor of such failure by the applicable Responsible
Party to correct or cure, the Trustee shall notify the applicable Responsible
Party to repurchase the Mortgage Loan (a "Deleted Mortgage Loan") at the
Repurchase Price or, if permitted hereunder, substitute a Substitute Mortgage
Loan for such Mortgage Loan, in each case, pursuant to this Agreement.
Notwithstanding the foregoing, in the event that the Trustee receives notice of
a breach by (i) WMC of any of the representations and warranties set forth in
paragraphs (43), (44), (46), (48), (50), (52), (53), (54), (55), (56), (57),
(58), (59) and (69) of Schedule III or (ii) Decision One of any representations
and warranties set forth in paragraphs (xx), (yy), (zz), (aaa), (ggg), (hhh),
(iii), (jjj), (kkk), (lll), (mmm) and (nnn) of Schedule VI, the Trustee shall
notify the applicable Responsible Party to repurchase the Mortgage Loan at the
Repurchase Price within sixty (60) days of the applicable Responsible Party's
receipt of such notice. If, within ten (10) Business Days of receipt of such
notice by the applicable Responsible Party such Responsible Party fails to
repurchase such Mortgage Loan, the Trustee shall notify the Depositor of such
failure. The Trustee shall pursue all legal remedies available to the Trustee
against the applicable Responsible Party under this Agreement, if the Trustee
has received written notice from the Depositor directing the Trustee to pursue
such remedies.

            (g) In the event any Mortgage Loan does not conform to the
requirements as determined in the Trustee's or the Custodian's review of the
related Custodial File, the Trustee or the Custodian, as applicable, shall
notify the applicable Responsible Party, the Servicer or the Trustee (if
applicable) and the Depositor in writing, and request that such Responsible
Party correct or cure such defect as required under this Agreement, and if such
Responsible Party fails or is unable to correct or cure the defect within the
period set forth in this Agreement, the Trustee or the Custodian, as applicable,
shall notify the Depositor of such failure to correct or cure. Unless otherwise
directed by the Depositor within five (5) Business Days after notifying the
Depositor of such failure by the applicable Responsible Party to correct or
cure, the Trustee or the Custodian, as applicable, shall notify the applicable
Responsible Party to repurchase the Mortgage Loan at the Repurchase Price or, if
permitted hereunder, substitute a Substitute Mortgage Loan for such Mortgage
Loan, in each case, pursuant to the terms of this Agreement, as applicable. If,
within ten (10) Business Days of receipt of such notice by the applicable
Responsible Party, such Responsible Party fails to repurchase such Mortgage
Loan, the Trustee shall notify the Depositor of such failure. The Trustee shall
pursue all legal remedies available to the Trustee against the applicable
Responsible Party under this Agreement, if the Trustee has received written
notice from the Depositor directing the Trustee to pursue such remedies.

            (h) Within 90 days of the earlier of either discovery by or notice
to the applicable Responsible Party of any breach of a representation or
warranty set forth on Schedule III or Schedule VI, as applicable, that
materially and adversely affects the value of any Mortgage Loan or the interest
of the Trustee or the Certificateholders therein, the applicable Responsible
Party shall use its best efforts to promptly cure such breach in all material
respects and, if such defect or breach cannot be remedied, the applicable
Responsible Party shall, at the Depositor's option, purchase such Mortgage Loan
at the Repurchase Price or, if permitted hereunder, substitute a Substitute
Mortgage Loan for such Mortgage Loan, if applicable.

            (i) Any substitution of a Substitute Mortgage Loan by a Responsible
Party shall be made in accordance with the substitution procedures set forth in
the applicable Purchase Agreement, which provisions shall be as set forth in
such agreements as if they were set forth herein. With respect to any Substitute
Mortgage Loan or Loans substituted by the Depositor or any Responsible Party,
the Depositor or such Responsible Party, as applicable, shall deliver to the
Trustee or the Custodian, as applicable, for the benefit of the
Certificateholders the Mortgage Note, the Mortgage, the related Assignment of
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. Notwithstanding anything to the contrary set forth in this
Agreement, no substitution under this Agreement is permitted to be made (a) in
any calendar month after the Determination Date for such month or (b) if the
substitution were to be made on or after the second anniversary of the Closing
Date. Scheduled Payments due with respect to Substitute Mortgage Loans in the
Due Period of substitution shall not be part of the Trust Fund and will be
retained by the Depositor or the applicable Responsible Party, as applicable, on
the next succeeding Distribution Date. For the Due Period of substitution,
distributions to Certificateholders will include the Scheduled Payment due on
any Deleted Mortgage Loan for such Due Period and thereafter the Depositor or
the applicable Responsible Party, as applicable, shall be entitled to retain all
amounts received in respect of such Deleted Mortgage Loan.

            (j) The Servicer, based upon information provided by the Depositor
or the applicable Responsible Party, as applicable, shall amend the Mortgage
Loan Schedule for the benefit of the Certificateholders to reflect the removal
of such Deleted Mortgage Loan and the substitution of the Substitute Mortgage
Loan or Loans and the Servicer shall deliver the amended Mortgage Loan Schedule
to the Trustee or Custodian, as applicable. Upon such substitution, the
Substitute Mortgage Loan or Loans shall be subject to the terms of this
Agreement in all respects, and, if the substitution is made by the Depositor,
the Depositor shall be deemed to have made with respect to such Substitute
Mortgage Loan or Loans, as of the date of substitution, the representations and
warranties made pursuant to Section 2.03(b) with respect to such Substitute
Mortgage Loan. Upon any such substitution and the deposit into the Collection
Account of the amount required to be deposited therein in connection with such
substitution as described in Section 2.03(k), the Trustee or the Custodian, as
applicable, shall release the Mortgage File held for the benefit of the
Certificateholders relating to such Deleted Mortgage Loan to the applicable
Responsible Party and the Trustee shall execute and deliver at the direction of
the Depositor or the applicable Responsible Party, as applicable, such
instruments of transfer or assignment prepared by the Depositor or the
applicable Responsible Party, as applicable, in each case without recourse, as
shall be necessary to vest title in the Depositor or the applicable Responsible
Party, as applicable, of the Trustee's interest in any Deleted Mortgage Loan
substituted for pursuant to this Section 2.03.

            (k) For any month in which the Depositor or any Responsible Party
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 unpaid principal balance of all such Substitute Mortgage Loans as of
the date of substitution is less than the aggregate unpaid principal balance of
all such Deleted Mortgage Loans. The amount of such shortage, plus an amount
equal to the sum of (i) any accrued and unpaid interest on the Deleted Mortgage
Loans and (ii) all unreimbursed Servicing Advances with respect to such Deleted
Mortgage Loans, or the amount of any similar shortage with respect to a
Substitute Mortgage Loan substituted by a Responsible Party under this Agreement
(collectively, the "Substitution Adjustment Amount"), shall be deposited into
the Collection Account by the Depositor or the Responsible Party, as applicable,
on or before the Distribution Account Deposit Date for the Distribution Date
following the Prepayment Period during which the related Mortgage Loan became
required to be purchased or replaced hereunder.

            (l) Any Mortgage Loan repurchased pursuant to this Section 2.03 will
be removed from the Trust Fund. The Servicer shall amend the Mortgage Loan
Schedule for the benefit of the Certificateholders to reflect the removal of any
Mortgage Loan repurchased and the Servicer shall deliver the amended Mortgage
Loan Schedule to the Trustee or Custodian, as applicable. For purposes of
determining the applicable Repurchase Price, any such repurchase shall occur or
shall be deemed to occur as of the last day of the applicable Prepayment Period.

            (m) In the event that the Depositor or any Responsible Party shall
have repurchased a Mortgage Loan pursuant to this Agreement, the Repurchase
Price therefor shall be deposited by the Servicer in the Collection Account
pursuant to Section 3.10 on or before the Distribution Account Deposit Date for
the Distribution Date following the Prepayment Period during which the Depositor
or such Responsible Party, as applicable, repurchased such Mortgage Loan and
upon such deposit of the Repurchase Price and receipt of a Request for Release
in the form of Exhibit J hereto, the Trustee or Custodian, as applicable, shall
release the related Custodial File held for the benefit of the
Certificateholders to such Person as directed by the Servicer, 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,
representation or warranty, as shall be necessary to transfer title from the
Trustee.

            (n) In addition to any repurchase or substitution obligation by any
Responsible Party under this Agreement, each Responsible Party shall indemnify
the Depositor and its Affiliates, the Servicer, the Sponsor, the Trustee, the
Custodian and the Trust for any breach of any representation and warranty of
such Responsible Party set forth in this Agreement, in accordance with the
indemnification provisions relating to breaches of representations and
warranties (including without limitation, the representations and warranties set
forth in paragraph (43) of Schedule III and paragraph (yy) of Schedule VI, as
applicable, to this Agreement) and defective Mortgage Loans set forth in the WMC
Purchase Agreement or the Decision One Purchase Agreement, as applicable, as if
such indemnification provisions were set forth herein for the benefit of the
Depositor and its Affiliates, the Servicer, the Sponsor, the Trustee and the
Trust. This indemnity shall survive the termination of this Agreement.

            (o) It is understood and agreed by the parties hereto that the
obligation of the Depositor under this Agreement or any Responsible Party under
this Agreement to cure, repurchase or substitute any Mortgage Loan as to which a
breach of a representation and warranty has occurred and is continuing, together
with any related indemnification obligations set forth herein, shall constitute
the sole remedies against such Persons respecting such breach available to
Certificateholders, the Depositor (if applicable), or the Trustee on their
behalf.

            The provisions of this Section 2.03 shall survive delivery of the
respective Custodial Files to the Trustee or the Custodian for the benefit of
the Certificateholders.

            Section 2.04 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 2.05 REMIC Matters. The Preliminary Statement sets forth the
designations for federal income tax purposes of all interests created hereby.
The "Startup Day" for purposes of the REMIC Provisions shall be the Closing
Date. The "latest possible maturity date" is the Distribution Date occurring in
December 2035, which is the Distribution Date in the month following the month
in which the latest maturity date of any Mortgage Loan occurs. Amounts
distributable to the Class X Certificates (prior to any reduction for any Basis
Risk Payment or Swap Termination Payment), exclusive of any amounts received
from the Swap Provider, shall be deemed paid from the Upper-Tier REMIC in
respect of the Class X Interest to the Holders of the Class X Certificates prior
to distribution of any Basis Risk Payments to the Offered Certificates. For
federal income tax purposes, any amount distributed on the Offered Certificates
on any Distribution Date in excess of the amount distributable on their
Corresponding Class of Upper-Tier Regular Interest on such Distribution Date
shall be treated as having been paid from the Excess Reserve Fund Account or the
Swap Account, as applicable, and any amount distributable on such Corresponding
Class of Upper-Tier Regular Interest on such Distribution Date in excess of the
amount distributable on the Corresponding Class of Offered Certificates on such
Distribution Date shall be treated as having been paid to the Excess Reserve
Fund Account or the Swap Account, all pursuant to and as further provided in
Section 8.13.

            Section 2.06 Representations and Warranties of the Depositor. The
Depositor hereby represents, warrants and covenants to the Trustee and the
Servicer that as of the date of this Agreement or as of such date specifically
provided herein:

            (a) The Depositor is a corporation duly organized, validly existing
and in good standing under the laws of the State of Delaware;

            (b) The Depositor has the corporate power and authority to convey
the Mortgage Loans and to execute, deliver and perform, and to enter into and
consummate the transactions contemplated by, this Agreement;

            (c) This Agreement has been duly and validly authorized, executed
and delivered by the Depositor, all requisite corporate action having been
taken, and, assuming the due authorization, execution and delivery hereof by the
other parties hereto, constitutes or will constitute the legal, valid and
binding agreement of the Depositor, enforceable against the Depositor in
accordance with its terms, except as such enforcement may be limited by
bankruptcy, insolvency, reorganization, moratorium or other similar laws
relating to or affecting the rights of creditors generally, and by general
equity principles (regardless of whether such enforcement is considered in a
proceeding in equity or at law);

            (d) No consent, approval, authorization or order of or registration
or filing with, or notice to, any governmental authority or court is required
for the execution, delivery and performance of or compliance by the Depositor
with this Agreement or the consummation by the Depositor of any of the
transactions contemplated hereby, except as have been made on or prior to the
Closing Date;

            (e) None of the execution and delivery of this Agreement, the
consummation of the transactions contemplated hereby or thereby, or the
fulfillment of or compliance with the terms and conditions of this Agreement,
(i) conflicts or will conflict with or results or will result in a breach of, or
constitutes or will constitute a default or results or will result in an
acceleration under (A) the charter or bylaws of the Depositor, or (B) of any
term, condition or provision of any material indenture, deed of trust, contract
or other agreement or instrument to which the Depositor or any of its
subsidiaries is a party or by which it or any of its subsidiaries is bound; (ii)
results or will result in a violation of any law, rule, regulation, order,
judgment or decree applicable to the Depositor of any court or governmental
authority having jurisdiction over the Depositor or its subsidiaries; or (iii)
results in the creation or imposition of any lien, charge or encumbrance which
would have a material adverse effect upon the Mortgage Loans or any documents or
instruments evidencing or securing the Mortgage Loans;

            (f) There are no actions, suits or proceedings before or against or
investigations of, the Depositor pending, or to the knowledge of the Depositor,
threatened, before any court, administrative agency or other tribunal, and no
notice of any such action, which, in the Depositor's reasonable judgment, might
materially and adversely affect the performance by the Depositor of its
obligations under this Agreement, or the validity or enforceability of this
Agreement;

            (g) The Depositor is not in default with respect to any order or
decree of any court or any order, regulation or demand of any federal, state,
municipal or governmental agency that may materially and adversely affect its
performance hereunder; and

            (h) Immediately prior to the transfer and assignment by the
Depositor to the Trustee on the Closing Date, the Depositor had good title to,
and was the sole owner of each Mortgage Loan, free of any interest of any other
Person, and the Depositor has transferred all right, title and interest in each
Mortgage Loan to the Trustee. The transfer of the Mortgage Note and the Mortgage
as and in the manner contemplated by this Agreement is sufficient either (i)
fully to transfer to the Trustee, for the benefit of the Certificateholders, all
right, title, and interest of the Depositor thereto as note holder and mortgagee
or (ii) to grant to the Trustee, for the benefit of the Certificateholders, the
security interest referred to in Section 10.04.

            It is understood and agreed that the representations, warranties and
covenants set forth in this Section 2.06 shall survive delivery of the
respective Custodial Files to the Trustee or the Custodian, as the case may be,
and shall inure to the benefit of the Trustee.

                                   ARTICLE III

                          ADMINISTRATION AND SERVICING
                                OF MORTGAGE LOANS

            Section 3.01 Servicer to Service Mortgage Loans. (a) For and on
behalf of the Certificateholders, the Servicer shall service and administer the
Mortgage Loans in accordance with the terms of this Agreement and the respective
Mortgage Loans and, to the extent consistent with such terms, in the same manner
in which it services and administers similar mortgage loans for its own
portfolio, giving due consideration to customary and usual standards of practice
of mortgage lenders and loan servicers administering similar mortgage loans but
without regard to:

             (i) any relationship that the Servicer, any Subservicer or any
      Affiliate of the Servicer or any Subservicer may have with the related
      Mortgagor;

            (ii) the ownership or non-ownership of any Certificate by the
      Servicer or any Affiliate of the Servicer;

            (iii) the Servicer's obligation to make P&I Advances or Servicing
      Advances; or

            (iv) the Servicer's or any Subservicer's right to receive
      compensation for its services hereunder or with respect to any particular
      transaction.

            To the extent consistent with the foregoing, the Servicer shall seek
to maximize the timely and complete recovery of principal and interest on the
Mortgage Notes. Subject only to the above-described servicing standards and the
terms of this Agreement and of the respective Mortgage Loans, the Servicer shall
have full power and authority, acting alone or through Subservicers as provided
in Section 3.02, to do or cause to be done any and all things in connection with
such servicing and administration which it may deem necessary or desirable.
Without limiting the generality of the foregoing, the Servicer in its own name
or in the name of a Subservicer is hereby authorized and empowered by the
Trustee when the Servicer believes it appropriate in its best judgment in
accordance with Accepted Servicing Practices, to execute and deliver any and all
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 the Mortgaged Properties and to institute foreclosure proceedings or
obtain a deed-in-lieu of foreclosure so as to convert the ownership of such
properties, and to hold or cause to be held title to such properties, on behalf
of the Trustee. The Servicer shall service and administer the Mortgage Loans in
accordance with applicable state and federal law and shall provide to the
Mortgagors any reports required to be provided to them thereby. The Servicer
covenants that its computer and other systems used in servicing the Mortgage
Loans operate in a manner such that the Servicer can service the Mortgage Loans
in accordance with the terms of this Pooling and Servicing Agreement. The
Servicer shall also comply in the performance of this Agreement with all
reasonable rules and requirements of each insurer under any standard hazard
insurance policy. Subject to Section 3.16, the Trustee or the Custodian, as
applicable, shall execute, at the written request of the Servicer, and furnish
to the Servicer and any Subservicer such documents provided to the Trustee or
the Custodian, as applicable, as are necessary or appropriate to enable the
Servicer or any Subservicer to carry out its servicing and administrative duties
hereunder, and the Trustee hereby grants to the Servicer, and this Agreement
shall constitute, a power of attorney to carry out such duties, including a
power of attorney in the form of Exhibit P hereto to take title to Mortgaged
Properties after foreclosure in the name of and on behalf of the Trustee. The
Trustee shall execute a separate power of attorney in favor of the Servicer for
the purposes described herein to the extent necessary or desirable to enable the
Servicer to perform its duties hereunder. The Trustee shall not be liable for
the actions of the Servicer or any Subservicers under such powers of attorney.
Notwithstanding anything contained herein to the contrary, neither the Servicer
nor any Subservicer shall without the Trustee's consent: (i) initiate any
action, suit or proceeding solely under the Trustee's name without indicating
the Servicer's or Subservicer's, as applicable, representative capacity, or (ii)
take any action with the intent to, or which actually does cause, the Trustee to
be registered to do business in any state.

            (b) Subject to Section 3.09(b), in accordance with the standards of
the preceding paragraph, the Servicer shall advance or cause to be advanced
funds as necessary for the purpose of effecting the timely payment of taxes and
assessments on the Mortgaged Properties, which advances shall be Servicing
Advances reimbursable in the first instance from related collections from the
Mortgagors pursuant to Section 3.09(b), and further as provided in Section 3.11.
Any cost incurred by the Servicer or by Subservicers in effecting the timely
payment of taxes and assessments on a Mortgaged Property shall not be added to
the unpaid principal balance of the related Mortgage Loan, notwithstanding that
the terms of such Mortgage Loan so permit.

            (c) Notwithstanding anything in this Agreement to the contrary, the
Servicer may not make any future advances with respect to a Mortgage Loan
(except as provided in Section 4.01) and the Servicer shall not (i) permit any
modification with respect to any Mortgage Loan that would change the Mortgage
Rate, reduce or increase the principal balance (except for reductions resulting
from actual payments of principal) or change the final maturity date on such
Mortgage Loan (except for a reduction of interest payments resulting from the
application of the Servicemembers Civil Relief Act or any similar state
statutes) or (ii) permit any modification, waiver or amendment of any term of
any Mortgage Loan that would both (A) effect an exchange or reissuance of such
Mortgage Loan under Section 1001 of the Code (or final, temporary or proposed
Treasury regulations promulgated thereunder) and (B) cause any Trust REMIC to
fail to qualify as a REMIC under the Code or the imposition of any tax on
"prohibited transactions" or "contributions after the startup date" under the
REMIC Provisions, or (iii) except as provided in Section 3.07(a), waive any
Prepayment Charges.

            (d) The Servicer may delegate its responsibilities under this
Agreement; provided, however, that no such delegation shall release the Servicer
from the responsibilities or liabilities arising under this Agreement.

            (e) In the event that the Mortgage Loan Documents relating to any
Mortgage Loan contain provisions requiring the related Mortgagor to submit to
binding arbitration any disputes arising in connection with such Mortgage Loan,
the Servicer shall be entitled to waive any such provisions on behalf of the
Trust and to send written notice of such waiver to the related Mortgagor,
although the Mortgagor may still require arbitration of such disputes at its
option.

            Section 3.02 Subservicing Agreements between the Servicer and
Subservicers. (a) The Servicer may enter into subservicing agreements with
Subservicers for the servicing and administration of the Mortgage Loans
("Subservicing Agreements"). The Servicer represents and warrants to the other
parties hereto that, except as otherwise set forth herein, no Subservicing
Agreement is in effect as of the Closing Date with respect to any Mortgage Loans
required to be serviced by it hereunder. The Servicer shall give notice to the
Depositor and the Trustee of any such Subservicer and Subservicing Agreement,
which notice shall contain all information (including without limitation a copy
of the Subservicing Agreement) reasonably necessary to enable the Trustee,
pursuant to Section 8.12(g), to accurately and timely report the event under
Item 6.02 of Form 8-K pursuant to the Exchange Act (if such reports under the
Exchange Act are required to be filed under the Exchange Act). No Subservicing
Agreement shall be effective until 30 days after such written notice is received
by both the Depositor and the Trustee. The Trustee shall not be required to
review or consent to such Subservicing Agreements and shall have no liability in
connection therewith.

            (b) Each Subservicer shall be (i) authorized to transact business in
the state or states in which the related Mortgaged Properties it is to service
are situated, if and to the extent required by applicable law to enable the
Subservicer to perform its obligations hereunder and under the Subservicing
Agreement, (ii) an institution approved as a mortgage loan originator by the
Federal Housing Administration or an institution that has deposit accounts
insured by the FDIC and (iii) a Freddie Mac or Fannie Mae approved mortgage
servicer. Each Subservicing Agreement must impose on the Subservicer
requirements conforming to the provisions set forth in Section 3.08 and provide
for servicing of the Mortgage Loans consistent with the terms of this Agreement.
The Servicer will examine each Subservicing Agreement and will be familiar with
the terms thereof. The terms of any Subservicing Agreement will not be
inconsistent with any of the provisions of this Agreement. The Servicer and the
Subservicers may enter into and make amendments to the Subservicing Agreements
or enter into different forms of Subservicing Agreements; provided, however,
that any such amendments or different forms shall be consistent with and not
violate the provisions of this Agreement, and that no such amendment or
different form shall be made or entered into which could be reasonably expected
to be materially adverse to the interests of the Trustee, without the consent of
the Trustee. Any variation without the consent of the Trustee from the
provisions set forth in Section 3.08 relating to insurance or priority
requirements of Subservicing Accounts, or credits and charges to the
Subservicing Accounts or the timing and amount of remittances by the
Subservicers to the Servicer, are conclusively deemed to be inconsistent with
this Agreement and therefore prohibited. The Servicer shall deliver to the
Trustee and the Depositor copies of all Subservicing Agreements, and any
amendments or modifications thereof, promptly upon the Servicer's execution and
delivery of such instruments.

            (c) As part of its servicing activities hereunder, the Servicer
(except as otherwise provided in the last sentence of this paragraph), for the
benefit of the Trustee, shall enforce the obligations of each Subservicer under
the related Subservicing Agreement including, without limitation, any obligation
to make advances in respect of delinquent payments as required by a Subservicing
Agreement. Such enforcement, including, without limitation, the legal
prosecution of claims, termination of Subservicing Agreements, and the pursuit
of other appropriate remedies, shall be in such form and carried out to such an
extent and at such time as the Servicer, in its good faith business judgment,
would require were it the owner of the related Mortgage Loans. The Servicer
shall pay the costs of such enforcement at its own expense, and shall be
reimbursed therefor only (i) from a general recovery resulting from such
enforcement, to the extent, if any, that such recovery exceeds all amounts due
in respect of the related Mortgage Loans or (ii) from a specific recovery of
costs, expenses or attorneys' fees against the party against whom such
enforcement is directed.

            (d) The Servicer shall cause any Subservicer engaged by the Servicer
(or by any Subservicer) for the benefit of the Depositor and the Trustee to
comply with the provisions of this Section 3.02 and with Sections 3.22, 3.23,
6.02 and 6.05 of this Agreement to the same extent as if such Subservicer were
the Servicer, and to provide the information required with respect to such
Subservicer under Section 8.12 of this Agreement. The Servicer shall be
responsible for obtaining from each such Subservicer and delivering to
applicable Persons any servicer compliance statement required to be delivered by
such Subservicer under Section 3.22 and any assessment of compliance report and
related accountant's attestation required to be delivered by such Subservicer
under Section 3.23, in each case as and when required to be delivered.

            (e) Subject to the conditions set forth in this Section 3.02(e), the
Servicer and any Subservicer engaged by the Servicer is permitted to utilize one
or more Subcontractors to perform certain of its obligations hereunder. The
Servicer shall promptly upon request provide to the Depositor a written
description (in form and substance satisfactory to the Depositor) of the role
and function of each Subcontractor utilized by the Servicer or any such
Subservicer, specifying no later than the date specified for delivery of the
annual report on assessment of compliance set forth in Section 3.23(d) (i) the
identity of each such Subcontractor, if any, that is "participating in the
servicing function" within the meaning of Item 1122 of Regulation AB, and (ii)
which elements of the Servicing Criteria will be addressed in assessments of
compliance provided by each Subcontractor identified pursuant to clause (i) of
this paragraph. As a condition to the utilization by the Servicer or any such
Subservicer of any Subcontractor determined to be "participating in the
servicing function" within the meaning of Item 1122 of Regulation AB, the
Servicer shall cause any such Subcontractor used by the Servicer (or by any such
Subservicer) for the benefit of the Depositor and the Trustee to comply with the
provisions of Section 3.23 of this Agreement to the same extent as if such
Subcontractor were the Servicer. The Servicer shall be responsible for obtaining
from each such Subcontractor and delivering to the applicable Persons any
assessment of compliance report and related accountant's attestation required to
be delivered by such Subcontractor under Section 3.23, in each case as and when
required to be delivered.

            Notwithstanding the foregoing, if the Servicer engages a
Subcontractor in connection with the performance of any of its duties under this
Agreement, the Servicer shall be responsible for determining whether such
Subcontractor is a "servicer" within the meaning of Item 1101 of Regulation AB
and whether any such affiliate or third-party vendor meets the criteria in Item
1108(a)(2)(i) through (iii) of Regulation AB. If the Servicer determines,
pursuant to the preceding sentence, that such Subcontractor is a "servicer"
within the meaning of Item 1101 of Regulation AB and meets the criteria in Item
1108(a)(2)(i) through (iii) of Regulation AB, then such Subcontractor shall be
deemed to be a Subservicer for purposes of this Agreement, the engagement of
such Subservicer shall not be effective unless and until notice is given
pursuant to Section 3.02(a) and the Servicer shall comply with Section 3.02(d)
with respect thereto.

            (f) As of the Closing Date, JPMorgan has appointed Chase Home
Finance LCC ("CHF") to act as the sole Subservicer pursuant to a Subservicing
Agreement (a copy of which is attached hereto as Exhibit W) with respect to
JPMorgan's servicing obligations under this Agreement. So long as JPMorgan is
not a rated servicer by each Rating Agency, JPMorgan agrees that prior to
replacing CHF as Subservicer, other than with an affiliate of JPMorgan that is a
rated servicer, it will obtain confirmation from each Rating Agency that such
replacement of CHF as Subservicer with respect to JPMorgan's servicing
obligations related to the Mortgage Loans will not cause the then current rating
on any Class of Certificates to be qualified, withdrawn or lowered by any Rating
Agency and agrees that any replacement subservicer shall agree to subservice in
accordance with the terms of this Agreement, including but not limited to the
consideration of whether to waive a Prepayment Charge hereunder.

            Section 3.03 Successor Subservicers. The Servicer shall be entitled
to terminate any Subservicing Agreement to which the Servicer is a party and the
rights and obligations of any Subservicer pursuant to any such Subservicing
Agreement in accordance with the terms and conditions of such Subservicing
Agreement; provided, however, that the termination, resignation or removal of a
Subservicer shall not be effective until 30 days after written notice is
received by both the Depositor and the Trustee that contains all information
reasonably necessary to enable the Trustee, pursuant to Section 8.12(g), to
accurately and timely report the event under Item 6.02 of Form 8-K pursuant to
the Exchange Act (if such reports under the Exchange Act are required to be
filed under the Exchange Act). In the event of termination of any Subservicer,
all servicing obligations of such Subservicer shall be assumed simultaneously by
the Servicer without any act or deed on the part of such Subservicer or the
Servicer, and the Servicer either shall service directly the related Mortgage
Loans or shall enter into a Subservicing Agreement with a successor Subservicer
which qualifies under Section 3.02.

            Any Subservicing Agreement shall include the provision that such
agreement may be immediately terminated by the Depositor or the Trustee without
fee, in accordance with the terms of this Agreement, in the event that the
Servicer shall, for any reason, no longer be the Servicer (including termination
due to an Event of Default).

            Section 3.04 Liability of the Servicer. Notwithstanding any
Subservicing Agreement, any of the provisions of this Agreement relating to
agreements or arrangements between the Servicer and a Subservicer or reference
to actions taken through a Subservicer or otherwise, the Servicer shall remain
obligated and primarily liable to the Trustee for the servicing and
administering of the Mortgage Loans in accordance with the provisions of Section
3.01 without diminution of such obligation or liability by virtue of such
Subservicing Agreements or arrangements or by virtue of indemnification from the
Subservicer and to the same extent and under the same terms and conditions as if
the Servicer alone were servicing and administering the Mortgage Loans. The
Servicer shall be entitled to enter into any agreement with a Subservicer for
indemnification of the Servicer by such Subservicer and nothing contained in
this Agreement shall be deemed to limit or modify such indemnification.

            Section 3.05 No Contractual Relationship between Subservicers and
the Trustee. Any Subservicing Agreement that may be entered into and any
transactions or services relating to the Mortgage Loans involving a Subservicer
in its capacity as such shall be deemed to be between the Subservicer and the
Servicer alone, and the Trustee (or any successor to the Servicer) shall not be
deemed a party thereto and shall have no claims, rights, obligations, duties or
liabilities with respect to the Subservicer except as set forth in Section 3.06.
The Servicer shall be solely liable for all fees owed by it to any Subservicer,
irrespective of whether the Servicer's compensation pursuant to this Agreement
is sufficient to pay such fees.

            Section 3.06 Assumption or Termination of Subservicing Agreements by
Trustee. In the event the Servicer at any time shall for any reason no longer be
the Servicer (including by reason of the occurrence of an Event of Default), the
Trustee, or its designee, or the successor servicer if the successor is not the
Trustee, shall thereupon assume all of the rights and obligations of the
Servicer under each Subservicing Agreement that the Servicer may have entered
into, with copies thereof provided to the Trustee, or the successor servicer if
the successor is not the Trustee, prior to the Trustee, or the successor
servicer if the successor is not the Trustee, assuming such rights and
obligations, unless the Trustee elects to terminate any Subservicing Agreement
in accordance with its terms as provided in Section 3.03.

            Upon such assumption, the Trustee, its designee or the successor
servicer shall be deemed, subject to Section 3.03, to have assumed all of the
Servicer's interest therein and to have replaced the Servicer as a party to each
Subservicing Agreement to the same extent as if each Subservicing Agreement had
been assigned to the assuming party, except that (i) the Servicer shall not
thereby be relieved of any liability or obligations under any such Subservicing
Agreement that arose before it ceased to be the Servicer and (ii) none of the
Depositor, the Trustee, their designees or any successor to the Servicer shall
be deemed to have assumed any liability or obligation of the Servicer that arose
before it ceased to be the Servicer.

            The Servicer at its expense shall, upon request of the Trustee, its
designee or the successor servicer deliver to the assuming party all documents
and records relating to each Subservicing Agreement and the Mortgage Loans then
being serviced and an accounting of amounts collected and held by or on behalf
of it, and otherwise use its best efforts to effect the orderly and efficient
transfer of the Subservicing Agreements to the assuming party.

            Section 3.07 Collection of Certain Mortgage Loan Payments. (a) The
Servicer shall make reasonable efforts to collect all payments called for under
the terms and provisions of the Mortgage Loans, and shall, to the extent such
procedures shall be consistent with this Agreement and the terms and provisions
of any applicable Insurance Policies, follow such collection procedures as it
would follow with respect to mortgage loans comparable to the Mortgage Loans and
held for its own account. Consistent with the foregoing and Accepted Servicing
Practices, the Servicer may (i) waive any late payment charge or, if applicable,
any penalty interest, or (ii) extend the Due Dates for the Scheduled Payments
due on a Mortgage Note for a period of not greater than 180 days; provided that
any extension pursuant to clause (ii) above shall not affect the amortization
schedule of any Mortgage Loan for purposes of any computation hereunder, except
as provided below. In the event of any such arrangement pursuant to clause (ii)
above, the Servicer shall make timely advances on such Mortgage Loan during such
extension pursuant to Section 4.01 and in accordance with the amortization
schedule of such Mortgage Loan without modification thereof by reason of such
arrangements, subject to Section 4.01(d) pursuant to which the Servicer shall
not be required to make any such advances that are Nonrecoverable P&I Advances.
Notwithstanding the foregoing, the Servicer may waive, or permit a Subservicer
to waive, in whole or in part, a Prepayment Charge only under the following
circumstances: (i) such waiver relates to a default or a reasonably foreseeable
default and would, in the reasonable judgment of the Servicer, maximize recovery
of total proceeds taking into account the value of such Prepayment Charge and
the related Mortgage Loan, (ii) such Prepayment Charge is not permitted to be
collected by applicable federal, state or local law or regulation or (iii) the
collection of such Prepayment Charge would be considered "predatory" pursuant to
written guidance published or issued by any applicable federal, state or local
regulatory authority acting in its official capacity and having jurisdiction
over such matters. If a Prepayment Charge is waived other than as permitted by
the prior sentence, then the Servicer is required to pay the amount of such
waived Prepayment Charge, for the benefit of the Holders of the Class P
Certificates, by depositing such amount into the Collection Account together
with and at the time that the amount prepaid on the related Mortgage Loan is
required to be deposited into the Collection Account; provided, however, that
the Servicer shall not have an obligation to pay the amount of any uncollected
Prepayment Charge if the failure to collect such amount is the direct result of
inaccurate or incomplete information on the Mortgage Loan Schedule in effect at
such time.

             (b) (i) The Trustee shall establish and maintain the Excess Reserve
Fund Account, on behalf of the Class X Certificateholders, to receive any Basis
Risk Payment and to secure their limited recourse obligation to pay to the
Offered Certificateholders Basis Risk CarryForward Amounts (prior to using any
Net Swap Receipts). For the avoidance of doubt, any Basis Risk CarryForward
Amounts shall be paid to the Offered Certificates first from the Excess Reserve
Fund Account and then from the Swap Account.

             (ii) On each Distribution Date, the Trustee shall deposit the amount
      of any Basis Risk Payment for such date into the Excess Reserve Fund
      Account.

            (c) (i) On each Distribution Date on which there exists a Basis Risk
CarryForward Amount on any Class of Certificates, the Trustee shall (1) withdraw
from the Distribution Account and deposit in the Excess Reserve Fund Account, as
set forth in Section 4.02(a)(iii)(S), the lesser of (x) the Class X
Distributable Amount (without regard to the reduction in clause (iii) in the
definition thereof) (to the extent remaining after the distributions specified
in Sections 4.02(a)(iii)(A)-(R)) and (y) the aggregate Basis Risk CarryForward
Amounts for such Distribution Date and (2) withdraw from the Excess Reserve Fund
Account amounts necessary to pay to such Class or Classes of Certificates the
Basis Risk CarryForward Amount. Such payments, along with payments from the Swap
Account, shall be allocated to those Classes on a pro rata basis based upon the
amount of Basis Risk CarryForward Amount owed to each such Class and shall be
paid in the priority set forth in Section 4.02(a)(iii)(T).

            (ii) The Trustee shall account for the Excess Reserve Fund Account
      as an asset of a grantor trust under subpart E, Part I of the subchapter J
      of the Code and not an asset of any Trust REMIC. The beneficial owners of
      the Excess Reserve Fund Account are the Class X Certificateholders. For
      all federal tax purposes, amounts transferred by the Upper-Tier REMIC to
      the Excess Reserve Fund Account shall be treated as distributions by the
      Trustee to the Class X Certificateholders.

            (iii) Any Basis Risk CarryForward Amounts paid by the Trustee to the
      Offered Certificateholders shall be accounted for by the Trustee as
      amounts paid first to the Holders of the Class X Certificates and then to
      the respective Class or Classes of Offered Certificates. In addition, the
      Trustee shall account for the Offered Certificateholders' rights to
      receive payments of Basis Risk CarryForward Amounts (along with payments
      of Basis Risk CarryForward Amounts and Upper-Tier CarryForward Amounts
      from the Swap Account) as rights in a limited recourse interest rate cap
      contract written by the Class X Certificateholders in favor of the Offered
      Certificateholders.

            (iv) Notwithstanding any provision contained in this Agreement, the
      Trustee shall not be required to make any payments from the Excess Reserve
      Fund Account except as expressly set forth in this Section 3.07(c) and
      Sections 4.02(a)(iii)(T) and (V).

            (d) The Trustee shall establish and maintain the Distribution
Account on behalf of the Certificateholders. The Depositor shall cause to be
deposited into the Distribution Account on the Closing Date the Closing Date
Deposit Amount. The Trustee shall, promptly upon receipt, deposit in the
Distribution Account and retain therein the following:

             (i) the aggregate amount remitted by the Servicer to the Trustee
      pursuant to Section 3.11;

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

             (iii) any other amounts deposited hereunder which are required to be
      deposited in the Distribution Account.

            In the event that the Servicer shall remit any amount not required
to be remitted, it may at any time direct the Trustee in writing to withdraw
such amount from the Distribution Account, any provision herein to the contrary
notwithstanding. Such direction may be accomplished by delivering notice to the
Trustee which 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 4.02.

            (e) The Trustee may invest the funds in the Distribution Account, in
one or more Permitted Investments, in accordance with Section 3.12. The Servicer
shall direct the Trustee to withdraw from the Distribution Account and to remit
to the Servicer no less than monthly, all income and gain realized from the
investment of the portion of funds deposited in the Distribution Account by the
Servicer (except during the Trustee Float Period). The Trustee may withdraw from
the Distribution Account any income or gain earned from the investment of funds
deposited therein during the Trustee Float Period for its own benefit.

            (f) The Servicer shall give notice to the Trustee, each Rating
Agency and the Depositor of any proposed change of the location of the
Collection Account within a reasonable period of time prior to any change
thereof.

            (g) In order to comply with its duties under the USA Patriot Act of
2001, the Trustee shall obtain and verify certain information and documentation
from the other parties to this Agreement including, but not limited to, each
such party's name, address and other identifying information.

            Section 3.08 Subservicing Accounts. In those cases where a
Subservicer is servicing a Mortgage Loan pursuant to a Subservicing Agreement,
the Subservicer will be required to establish and maintain one or more
segregated accounts (collectively, the "Subservicing Account"). The Subservicing
Account shall be an Eligible Account and shall otherwise be acceptable to the
Servicer. The Subservicer shall deposit in the clearing account (which account
must be an Eligible Account) in which it customarily deposits payments and
collections on mortgage loans in connection with its mortgage loan servicing
activities on a daily basis, and in no event more than one Business Day after
the Subservicer's receipt thereof, all proceeds of Mortgage Loans received by
the Subservicer less its servicing compensation to the extent permitted by the
Subservicing Agreement, and shall thereafter deposit such amounts in the
Subservicing Account, in no event more than two Business Days after the deposit
of such funds into the clearing account. The Subservicer shall thereafter
deposit such proceeds in the Collection Account or remit such proceeds to the
Servicer for deposit in the Collection Account not later than two Business Days
after the deposit of such amounts in the Subservicing Account. For purposes of
this Agreement, the Servicer shall be deemed to have received payments on the
Mortgage Loans when the Subservicer receives such payments.

            Section 3.09 Collection of Taxes, Assessments and Similar Items;
Escrow Accounts. (a) The Servicer shall enforce the obligations under each
paid-in-full, life-of-the-loan tax service contract in effect with respect to
each First Lien Mortgage Loan (each, a "Tax Service Contract"). Each Tax Service
Contract shall be assigned to the Trustee, or a successor servicer at the
Servicer's expense in the event that the Servicer is terminated as Servicer of
the related Mortgage Loan.

             (b) To the extent that the services described in this paragraph (b)
are not otherwise provided pursuant to the Tax Service Contracts described in
paragraph (a) above, the Servicer undertakes to perform such functions. To the
extent the related Mortgage provides for Escrow Payments, the Servicer shall
establish and maintain, or cause to be established and maintained, one or more
segregated accounts (the "Escrow Accounts"), which shall be Eligible Accounts.
The Servicer shall deposit in the clearing account (which account must be an
Eligible Account) in which it customarily deposits payments and collections on
mortgage loans in connection with its mortgage loan servicing activities on a
daily basis, and in no event more than one Business Day after the Servicer's
receipt thereof, all collections from the Mortgagors (or related advances from
Subservicers) for the payment of taxes, assessments, hazard insurance premiums
and comparable items for the account of the Mortgagors ("Escrow Payments")
collected on account of the Mortgage Loans and shall thereafter deposit such
Escrow Payments in the Escrow Accounts, in no event more than two Business Days
after the deposit of such funds in the clearing account, for the purpose of
effecting the payment of any such items as required under the terms of this
Agreement. Withdrawals of amounts from an Escrow Account may be made only to (i)
effect payment of taxes, assessments, hazard insurance premiums, and comparable
items; (ii) reimburse the Servicer (or a Subservicer to the extent provided in
the related Subservicing Agreement) out of related collections for any advances
made pursuant to Section 3.01 (with respect to taxes and assessments) and
Section 3.13 (with respect to hazard insurance); (iii) refund to Mortgagors any
sums as may be determined to be overages; (iv) pay interest, if required and as
described below, to Mortgagors on balances in the Escrow Account; (v) clear and
terminate the Escrow Account at the termination of the Servicer's obligations
and responsibilities in respect of the Mortgage Loans under this Agreement; (vi)
to transfer such funds to a replacement Escrow Account that meets the
requirements hereof; (vii) recover amounts deposited in error. As part of its
servicing duties, the Servicer or Subservicers shall pay to the Mortgagors
interest on funds in Escrow Accounts, to the extent required by law and, to the
extent that interest earned on funds in the Escrow Accounts is insufficient, to
pay such interest from its or their own funds, without any reimbursement
therefor. To the extent that a Mortgage does not provide for Escrow Payments,
the Servicer shall determine whether any such payments are made by the Mortgagor
in a manner and at a time that avoids the loss of the Mortgaged Property due to
a tax sale or the foreclosure of a tax lien. The Servicer assumes full
responsibility for the payment of all such bills within such time and shall
effect payments of all such bills irrespective of the Mortgagor's faithful
performance in the payment of same or the making of the Escrow Payments and
shall make advances from its own funds to effect such payments; provided,
however, that such advances are deemed to be Servicing Advances.

            Section 3.10 Collection Account. (a) On behalf of the Trustee, the
Servicer shall establish and maintain, or cause to be established and
maintained, one or more separate Eligible Accounts (such account or accounts,
the "Collection Account"), held in trust for the benefit of the Trustee. On
behalf of the Trustee, the Servicer shall deposit or cause to be deposited in
the clearing account (which account must be an Eligible Account) in which it
customarily deposits payments and collections on mortgage loans in connection
with its mortgage loan servicing activities on a daily basis, and in no event
more than one Business Day after the Servicer's receipt thereof, and shall
thereafter deposit in the Collection Account, in no event more than two Business
Days after the deposit of such funds into the clearing account, as and when
received or as otherwise required hereunder, the following payments and
collections received or made by it subsequent to the Cut-off Date (other than in
respect of principal or interest on the related Mortgage Loans due on or before
the Cut-off Date), or payments (other than Principal Prepayments) received by it
on or prior to the Cut-off Date but allocable to a Due Period subsequent
thereto:

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

             (ii) all payments on account of interest (net of the related
      Servicing Fee) on each Mortgage Loan;

            (iii) all Insurance Proceeds and Condemnation Proceeds to the extent
      such Insurance Proceeds and Condemnation Proceeds are not to be applied to
      the restoration of the related Mortgaged Property or released to the
      related Mortgagor in accordance with the express requirements of law or in
      accordance with Accepted Servicing Practices and Liquidation Proceeds;

            (iv) any amounts required to be deposited pursuant to Section 3.12
      in connection with any losses realized on Permitted Investments with
      respect to funds held in the Collection Account;

            (v) any amounts required to be deposited by the Servicer pursuant to
      the second paragraph of Section 3.13(a) in respect of any blanket policy
      deductibles;

            (vi) all proceeds of any Mortgage Loan repurchased or purchased in
      accordance with this Agreement; and

            (vii) all Prepayment Charges collected or paid (pursuant to Section
      3.07(a)) by the Servicer.

            The foregoing requirements for deposit in the Collection Account
shall be exclusive, it being understood and agreed that, without limiting the
generality of the foregoing, payments in the nature of late payment charges, NSF
fees, reconveyance fees, assumption fees and other similar fees and charges need
not be deposited by the Servicer in the Collection Account and shall, upon
collection, belong to the Servicer as additional compensation for its servicing
activities. In the event the Servicer shall deposit in the Collection Account
any amount not required to be deposited therein, it may at any time withdraw
such amount from the Collection Account, any provision herein to the contrary
notwithstanding.

            (b) Funds in the Collection Account may be invested in Permitted
Investments in accordance with the provisions set forth in Section 3.12. The
Servicer shall give notice to the Trustee of the location of the Collection