NORWEST ASSET SECURITIES CORP MORT PASS THR CERT SER 2000 1
8-K, 2000-03-02
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of Report: January 28, 2000
(Date of earliest event reported)

Commission File No. 333-65481



                      Norwest Asset Securities Corporation
- --------------------------------------------------------------------------------



               Delaware                                  52-1972128
- ---------------------------------------  ---------------------------------------
       (State of Incorporation)            (I.R.S. Employer Identification No.)



7485 New Horizon Way, Frederick, Maryland                         21703
- --------------------------------------------------------------------------------
  Address of principal executive offices                       (Zip Code)



                                 (301) 846-8881
- --------------------------------------------------------------------------------
               Registrant's Telephone Number, including area code



- --------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                         if changed since last report)

<PAGE>


ITEM 5.     Other Events
            ------------

On January 28, 2000, Norwest Asset Securities Corporation, a Delaware
corporation (the "Registrant"), sold Mortgage Pass-Through Certificates, Series
2000-1, Class I-A-1, Class I-A-2, Class I-A-3, Class I-A-4, Class I-A-5, Class
I-A-6, Class I-A-R, Class II-A-1, Class II-A-2, Class B-1, Class B-2 and Class
B-3 (the "Offered Certificates"), having an aggregate original principal balance
of $197,874,000. The Offered Certificates were issued pursuant to a Pooling and
Servicing Agreement, dated as of January 28, 2000, among the Registrant, Norwest
Bank Minnesota, National Association, as master servicer (the "Master Servicer"
or "Norwest Bank") and First Union National Bank, as trustee (the "Agreement"),
a copy of which is filed as an exhibit hereto. Mortgage Pass-Through
Certificates, Series 2000-1, Class I-A-PO Certificates, having an aggregate
initial principal balance of $1,034,410.75, Class II-A-PO Certificates, having
an aggregate initial principal balance of $214,378.78 and Class B-4, Class B-5
and Class B-6 Certificates, having an aggregate initial principal balance of
$1,505,663.99 (the "Private Class B Certificates" and, together with the Class
I-A-PO Certificates, Class II-A-PO Certificates and the Offered Certificates,
the "Certificates"), were also issued pursuant to the Agreement.

As of the date of initial issuance, the Offered Certificates evidenced an
approximate 98.63% undivided interest in a trust fund (the "Trust Estate"),
consisting principally of two pools of fixed interest rate, conventional,
monthly pay, fully-amortizing, one-to four-family residential first mortgage
loans, other than the Fixed Retained Yield (as defined in the Agreement), which
may include loans secured by shares issued by cooperative housing corporations.
Some of the mortgage loans were originated in connection with the relocation of
employees by various corporate empolyers that participated in the relocation
program of Norwest Mortgage, Inc. and of the employees of various
non-participant employers. The remaining undivided interests in the Trust Estate
are evidenced by the Class I-A-PO, Class II-A-PO and Private Class B
Certificates. Distributions on the Private Class B Certificates are subordinated
to distributions on the Offered Certificates and the Class I-A-PO and Class
II-A-PO Certificates.

Interest on the Offered Certificates will be distributed on each Distribution
Date (as defined in the Agreement). Monthly distributions in reduction of the
principal balance of the Offered Certificates will be allocated to the Offered
Certificates in accordance with the priorities set forth in the Agreement.
Distributions of interest and in reduction of principal balance on any
Distribution Date will be made to the extent that the Pool Distribution Amounts
are sufficient therefor.

An election will be made to treat the Trust Estate as a REMIC for federal income
tax purposes (the "REMIC"). The Class I-A-1, Class I-A-2, Class I-A-3, Class
I-A-4, Class I-A-5, Class I-A-6, Class I-A-PO, Class II-A-1, Class II-A-2, Class
II-A-PO, Class B-1, Class B-2, Class B-3, Class B-4, Class B-5 and Class B-6
Certificates will be treated as "regular interests" in the REMIC and the Class
I-A-R Certificate will be treated as the "residual interest" in the REMIC.

<PAGE>

ITEM 7.     Financial Statements and Exhibits
            ---------------------------------

            (c)   Exhibits

Item 601(a)
of Regulation S-K
Exhibit No.                              Description
- -----------                              -----------

(EX-4)                                   Pooling and Servicing Agreement, dated
                                         as of January 28, 2000, among Norwest
                                         Asset Securities Corporation, Norwest
                                         Bank Minnesota, National Association
                                         and First Union National Bank, as
                                         trustee.


<PAGE>

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                       NORWEST ASSET SECURITIES CORPORATION

January 28, 2000
                                       /s/ Alan McKenney
                                       ---------------------------------------
                                       Alan McKenney
                                       Vice President




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





                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                 NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                            FIRST UNION NATIONAL BANK

                                    (Trustee)

                         POOLING AND SERVICING AGREEMENT

                          Dated as of January 28, 2000

                                 $200,628,453.52

                       Mortgage Pass-Through Certificates

                                  Series 2000-1

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


<PAGE>


                                TABLE OF CONTENTS

                                                                            Page

                                    ARTICLE I

                                   DEFINITIONS

Section 1.01  Definitions...................................................
Section 1.02  Acts of Holders...............................................
Section 1.03  Effect of Headings and Table of Contents......................
Section 1.04  Benefits of Agreement.........................................


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

Section 2.01  Conveyance of Mortgage Loans..................................
Section 2.02  Acceptance by Trustee.........................................
Section 2.03  Representations and Warranties of the Master Servicer and
               the Seller...................................................
Section 2.04  Execution and Delivery of Certificates........................
Section 2.05  Designation of Certificates; Designation of Startup Day
               and Latest Possible Maturity Date............................


                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

Section 3.01  Certificate Account...........................................
Section 3.02  Permitted Withdrawals from the Certificate Account............
Section 3.03  Advances by Master Servicer and Trustee.......................
Section 3.04  Trustee to Cooperate;
               Release of Owner Mortgage Loan Files.........................
Section 3.05  Reports to the Trustee; Annual Compliance Statements..........
Section 3.06  Title, Management and Disposition of Any REO Mortgage
               Loan.........................................................
Section 3.07  Amendments to Servicing Agreements,
               Modification of Standard Provisions..........................
Section 3.08  Oversight of Servicing........................................
Section 3.09  Termination and Substitution of Servicing Agreements..........
Section 3.10  Application of Net Liquidation Proceeds.......................
Section 3.11  Act Reports...................................................


                                   ARTICLE IV

                  DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
                         PAYMENTS TO CERTIFICATEHOLDERS;
                             STATEMENTS AND REPORTS

Section 4.01  Distributions.................................................
Section 4.02  Allocation of Realized Losses.................................
Section 4.03  Paying Agent..................................................
Section 4.04  Statements to Certificateholders;
               Report to the Trustee and the Seller.........................
Section 4.05  Reports to Mortgagors and the Internal Revenue Service........
Section 4.06  Calculation of Amounts; Binding Effect of Interpretations
               and Actions of Master Servicer...............................


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01  The Certificates..............................................
Section 5.02  Registration 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...............................
Section 5.07  Definitive Certificates.......................................
Section 5.08  Notices to Clearing Agency....................................


                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

Section 6.01  Liability of the Seller and the Master Servicer...............
Section 6.02  Merger or Consolidation of the Seller or the Master
               Servicer.....................................................
Section 6.03  Limitation on Liability of the Seller, the Master
               Servicer and Others..........................................
Section 6.04  Resignation of the Master Servicer............................
Section 6.05  Compensation to the Master Servicer...........................
Section 6.06  Assignment or Delegation of Duties by Master Servicer.........
Section 6.07  Indemnification of Trustee and Seller by Master Servicer......
Section 6.08  Master Servicer Covenants Concerning Year 2000 Compliance.....


                                   ARTICLE VII

                                     DEFAULT

Section 7.01  Events of Default.............................................
Section 7.02  Other Remedies of Trustee.....................................
Section 7.03  Directions by Certificateholders and
               Duties of Trustee During Event of Default....................
Section 7.04  Action upon Certain Failures of the
               Master Servicer and upon Event of Default....................
Section 7.05  Trustee to Act; Appointment of Successor......................
Section 7.06  Notification to Certificateholders............................


                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

Section 8.01  Duties of Trustee.............................................
Section 8.02  Certain Matters Affecting the Trustee.........................
Section 8.03  Trustee Not Required to Make Investigation....................
Section 8.04  Trustee Not Liable for Certificates or Mortgage Loans.........
Section 8.05  Trustee May Own Certificates..................................
Section 8.06  The Master Servicer to Pay Fees and Expenses..................
Section 8.07  Eligibility Requirements......................................
Section 8.08  Resignation and Removal.......................................
Section 8.09  Successor.....................................................
Section 8.10  Merger or Consolidation.......................................
Section 8.11  Authenticating Agent..........................................
Section 8.12  Separate Trustees and Co-Trustees.............................
Section 8.13  Appointment of Custodians.....................................
Section 8.14  Tax Matters; Compliance with REMIC Provisions.................
Section 8.15  Monthly Advances..............................................
Section 8.16  Trustee Covenants Concerning Year 2000 Compliance.............


                                   ARTICLE IX

                                   TERMINATION

Section 9.01  Termination upon Purchase by the
               Seller or Liquidation of All Mortgage Loans..................
Section 9.02  Additional Termination Requirements...........................


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

Section 10.01 Amendment.....................................................
Section 10.02 Recordation of Agreement......................................
Section 10.03 Limitation on Rights of Certificateholders....................
Section 10.04 Governing Law; Jurisdiction...................................
Section 10.05 Notices.......................................................
Section 10.06 Severability of Provisions....................................
Section 10.07 Special Notices to Rating Agencies............................
Section 10.08 Covenant of Seller............................................
Section 10.09 Recharacterization............................................


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

Section 11.01 Cut-Off Date..................................................
Section 11.02 Cut-Off Date Aggregate Principal Balance......................
Section 11.03 Original Group I-A Percentage.................................
Section 11.04 Original Group II-A Percentage................................
Section 11.05 Original Principal Balances of the Classes of Class A
               Certificates.................................................
Section 11.06 Original Aggregate Non-PO Principal Balance...................
Section 11.07 Original Aggregate Subordinate Percentage.....................
Section 11.08 Original Class B Principal Balance............................
Section 11.09 Original Group I Subordinated Principal Balance...............
Section 11.10 Original Group II Subordinated Principal Balance..............
Section 11.11 Original Principal Balances of the Classes of Class B
               Certificates.................................................
Section 11.12 Original Class B-1 Fractional Interest........................
Section 11.13 Original Class B-2 Fractional Interest........................
Section 11.14 Original Class B-3 Fractional Interest........................
Section 11.15 Original Class B-4 Fractional Interest........................
Section 11.16 Original Class B-5 Fractional Interest........................
Section 11.17 Closing Date..................................................
Section 11.18 Right to Purchase.............................................
Section 11.19 Wire Transfer Eligibility.....................................
Section 11.20 Single Certificate............................................
Section 11.21 Servicing Fee Rate............................................
Section 11.22 Master Servicing Fee Rate.....................................


<PAGE>


                                    EXHIBITS

EXHIBIT A-I-A-1         -     Form of Face of Class I-A-1 Certificate
EXHIBIT A-I-A-2         -     Form of Face of Class I-A-2 Certificate
EXHIBIT A-I-A-3         -     Form of Face of Class I-A-3 Certificate
EXHIBIT A-I-A-4         -     Form of Face of Class I-A-4 Certificate
EXHIBIT A-I-A-5         -     Form of Face of Class I-A-5 Certificate
EXHIBIT A-I-A-6         -     Form of Face of Class I-A-6 Certificate
EXHIBIT A-I-A-PO        -     Form of Face of Class I-A-PO Certificate
EXHIBIT A-I-A-R         -     Form of Face of Class I-A-R Certificate
EXHIBIT A-II-A-1        -     Form of Face of Class II-A-1 Certificate
EXHIBIT A-II-A-2        -     Form of Face of Class II-A-2 Certificate
EXHIBIT A-II-A-PO       -     Form of Face of Class II-A-PO Certificate
EXHIBIT B-1             -     Form of Face of Class B-1 Certificate
EXHIBIT B-2             -     Form of Face of Class B-2 Certificate
EXHIBIT B-3             -     Form of Face of Class B-3 Certificate
EXHIBIT B-4             -     Form of Face of Class B-4 Certificate
EXHIBIT B-5             -     Form of Face of Class B-5 Certificate
EXHIBIT B-6             -     Form of Face of Class B-6 Certificate
EXHIBIT C               -     Form of Reverse of Series 2000-1 Certificates
EXHIBIT D               -     Reserved
EXHIBIT E               -     Custodial Agreement
EXHIBIT F-1             -     Schedule of Group I Mortgage Loans Serviced by
                              Norwest Mortgage from locations other than
                              Frederick, Maryland
EXHIBIT F-2A            -     Schedule of Group I Mortgage Loans Serviced by
                                Norwest Mortgage

EXHIBIT F-2B            -     Schedule of Group II Mortgage Loans Serviced by
                              Norwest Mortgage in Frederick, Maryland
EXHIBIT F-3             -     Schedule of Group I Mortgage Loans Serviced by
                                 Other Servicers

EXHIBIT G               -     Request for Release
EXHIBIT H               -     Affidavit Pursuant to Section 860E(e)(4) of the
                              Internal Revenue Code of 1986, as amended, and
                             for Non-ERISA Investors

EXHIBIT I               -     Letter from Transferor of Residual Certificates
EXHIBIT J               -     Transferee's Letter (Class [I-A-PO]
                              [II-A-PO][B-4] [B-5] [B-6] Certificates)
EXHIBIT K               -     Transferee's Letter (Class [B-1] [B-2] [B-3]
                              Certificates)
EXHIBIT L               -     Servicing Agreements
EXHIBIT M               -     Form of Special Servicing Agreement

<PAGE>


            This Pooling and Servicing Agreement, dated as of January 28, 2000
executed by NORWEST ASSET SECURITIES CORPORATION, as Seller, NORWEST BANK
MINNESOTA, NATIONAL ASSOCIATION, as Master Servicer, and FIRST UNION NATIONAL
BANK, as Trustee.

                         W I T N E S S E T H   T H A T:

            In consideration of the mutual agreements herein contained, the
Seller, the Master Servicer and the Trustee agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

            SECTION 1.01      DEFINITIONS.

            Whenever used herein, the following words and phrases, unless the
context otherwise requires, shall have the meanings specified in this Article.

            Accepted Master Servicing Practices: Accepted Master Servicing
Practices shall consist of the customary and usual master servicing practices of
prudent master servicing institutions which service mortgage loans of the same
type as the Mortgage Loans in the jurisdictions in which the related Mortgaged
Properties are located, regardless of the date upon which the related Mortgage
Loans were originated.

            Adjusted Principal Balance: As to any Distribution Date and any
Class of Class B Certificates, the greater of (A) zero and (B) (i) the Principal
Balance of such Class with respect to such Distribution Date minus (ii) the
Adjustment Amount for such Distribution Date less the Principal Balances for any
Classes of Class B Certificates with higher numerical designations.

            Adjustment Amount: For any Distribution Date, the difference between
(A) the sum of the Aggregate Class A Principal Balance and Class B Principal
Balance as of the related Determination Date and (B) the sum of (i) the sum of
the Aggregate Class A Principal Balance and Class B Principal Balance as of the
Determination Date succeeding such Distribution Date, (ii) the principal portion
of Excess Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy
Losses allocated to the Certificates with respect to such Distribution Date and
(iii) the aggregate amount that would have been distributed to all Classes as
principal in accordance with Section 4.01(a) for such Distribution Date without
regard to the provisos in the definitions of Class B-1 Optimal Principal Amount,
Class B-2 Optimal Principal Amount, Class B-3 Optimal Principal Amount, Class
B-4 Optimal Principal Amount, Class B-5 Optimal Principal Amount and Class B-6
Optimal Principal Amount.

            Aggregate  Adjusted Pool Amount:  With respect to any Distribution
Date,  the sum of the Group I Adjusted  Pool Amount and Group II Adjusted Pool
Amount.

            Aggregate Class A Principal Balance: With respect to any
Determination Date, the sum of the Group I-A Principal Balance and Group II-A
Principal Balance.

            Aggregate Current Bankruptcy Losses: With respect to any
Distribution Date, the sum of all Bankruptcy Losses incurred on any of the
Mortgage Loans in the month preceding the month of such Distribution Date.

            Aggregate Current Fraud Losses: With respect to any Distribution
Date, the sum of all Fraud Losses incurred on any of the Mortgage Loans in the
month preceding the month of such Distribution Date.

            Aggregate Current Special Hazard Losses: With respect to any
Distribution Date, the sum of all Special Hazard Losses incurred on any of the
Mortgage Loans in the month preceding the month of such Distribution Date.

            Aggregate Group I Foreclosure Profits: As to any Distribution Date,
the aggregate amount of Foreclosure Profits with respect to all of the Group I
Mortgage Loans.

            Aggregate Group II Foreclosure Profits: As to any Distribution Date,
the aggregate amount of Foreclosure Profits with respect to all of the Group II
Mortgage Loans.

            Aggregate Group I-A Unpaid Interest Shortfall: As to any
Distribution Date, an amount equal to the sum of the Class A Unpaid Interest
Shortfalls for the Group I-A Certificates.

            Aggregate Group II-A Unpaid Interest Shortfall: As to any
Distribution Date, an amount equal to the sum of the Class A Unpaid Interest
Shortfalls for the Group II-A Certificates.

            Aggregate Non-PO Principal Balance: As of any Determination Date,
the sum of the Class I-A Non-PO Principal Balance, the Class II-A Non-PO
Principal Balance and the Class B Principal Balance as of such date.

            Aggregate Subordinate Percentage: As to any Determination Date, the
Class B Principal Balance divided by the sum of the Group I Pool Balance (Non-PO
Portion) and the Group II Pool Balance (Non-PO Portion).

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

            Applicable Unscheduled Principal Receipt Period: With respect to the
Mortgage Loans serviced by each Servicer and each of Full Unscheduled Principal
Receipts and Partial Unscheduled Principal Receipts, the Unscheduled Principal
Receipt Period specified on Schedule I hereto, as amended from time to time by
the Master Servicer pursuant to Section 10.01(b) hereof.

            Apportioned Class B Principal Distribution Amount: As to any
Distribution Date and any Class of Class B Certificates, the product of (i) the
applicable Class B Principal Distribution Amount less the amount, if any, that
would have been distributable to such Class pursuant to Section 4.01(a)(ii) that
is used to pay the Class I-A-PO Deferred Amount and Class II-A-PO Deferred
Amount as provided in Clause (i) Paragraph fourth of Section 4.01(a) and (ii)
the Apportionment Fraction for such Class.

            Apportioned Interest Accrual Amount: As to any Distribution Date and
either of the Group I Apportioned Principal Balance or Group II Apportioned
Principal Balance of a Class of Class B Certificates, an amount equal to the
product of (i) 1/12th of the Class B Pass-Through Rate and (ii) such Group I
Apportioned Principal Balance or Group II Apportioned Principal Balance as of
the Determination Date preceding such Distribution Date

            Apportionment Fraction: As to any Class of Class B Certificates and
(i) any Distribution Date occurring prior to the Cross-Over Date and after the
Principal Balance of each Class of Group I-A Certificates (other than the Class
I-A-PO Certificates) has been reduced to zero, a fraction, the numerator of
which is the Class B Loan Group I Optimal Principal Amount for such Class and
the denominator of which is the applicable Class B Optimal Principal Amount
without regard to the proviso thereto or (ii) any Distribution Date occurring
prior to the Cross-Over Date and after the Principal Balance of each Class of
Group II-A Certificates (other than the Class II-A-PO Certificates) has been
reduced to zero, a fraction, the numerator of which is the Class B Loan Group II
Optimal Principal Amount for such Class and the denominator of which is the
applicable Class B Optimal Principal Amount without regard to the proviso
thereto.

            Authenticating Agent: Any authenticating agent appointed by the
Trustee pursuant to Section 8.11. There shall initially be no Authenticating
Agent for the Certificates.

            Available Master Servicer Compensation: As to any Distribution Date,
the sum of (a) the Master Servicing Fee for such Distribution Date, (b) interest
earned through the business day preceding the applicable Distribution Date on
any Prepayments in Full remitted to the Master Servicer and (c) the aggregate
amount of Month End Interest remitted by the Servicers to the Master Servicer
pursuant to the related Servicing Agreements.

            Bankruptcy Code: The Bankruptcy Code of 1978, as amended.

            Bankruptcy Loss: With respect to any Mortgage Loan, a Deficient
Valuation or Debt Service Reduction; provided, however, that a Bankruptcy Loss
shall not be deemed a Bankruptcy Loss hereunder so long as the applicable
Servicer has notified the Master Servicer and the Trustee in writing that such
Servicer is diligently pursuing any remedies that may exist in connection with
the representations and warranties made regarding the related Mortgage Loan and
either (A) the related Mortgage Loan is not in default with regard to payments
due thereunder or (B) delinquent payments of principal and interest under the
related Mortgage Loan and any premiums on any applicable primary hazard
insurance policy and any related escrow payments in respect of such Mortgage
Loan are being advanced on a current basis by such Servicer without giving
effect to any Debt Service Reduction.

            Bankruptcy Loss Amount: As of any Distribution Date prior to the
first anniversary of the Cut-Off Date, the Bankruptcy Loss Amount will equal
$100,000.00 minus the aggregate amount of Bankruptcy Losses allocated solely to
the Class B Certificates in accordance with Section 4.02(a) since the Cut-Off
Date. As of any Distribution Date on or after the first anniversary of the
Cut-Off Date, an amount equal to (1) the lesser of (a) the Bankruptcy Loss
Amount calculated as of the close of business on the Business Day immediately
preceding the most recent anniversary of the Cut-Off Date coinciding with or
preceding such Distribution Date (the "Relevant Anniversary") and (b) such
lesser amount which, as determined on the Relevant Anniversary will not cause
any rated Certificates to be placed on credit review status (other than for
possible upgrading) by either Rating Agency minus (2) the aggregate amount of
Bankruptcy Losses allocated solely to the Class B Certificates in accordance
with Section 4.02(a) since the Relevant Anniversary. On and after the Cross-Over
Date the Bankruptcy Loss Amount shall be zero.

            Bank United Mortgage Loan Sale Agreement: The mortgage loan sale
agreement dated as of September 17, 1998 between Bank United, as seller and
Norwest Funding, Inc., as purchaser.

            Beneficial Owner: With respect to a Book-Entry Certificate, the
Person who is the beneficial owner of such Book-Entry Certificate, as reflected
on the books of the Clearing Agency, or on the books of a Person maintaining an
account with such Clearing Agency (directly or as an indirect participant, in
accordance with the rules of such Clearing Agency), as the case may be.

            Book-Entry Certificate: Any one of the Class I-A-1 Certificates,
Class I-A-2 Certificates, Class I-A-3 Certificates, Class I-A-4 Certificates,
Class I-A-5 Certificates, Class I-A-6 Certificates, Class II-A-1 Certificates
and Class II-A-2 Certificates, beneficial ownership and transfers of which shall
be evidenced by, and made through, book entries by the Clearing Agency as
described in Section 5.01(b).

            Business Day: Any day other than (i) a Saturday or a Sunday, or (ii)
a legal holiday in the City of New York, State of Iowa, State of Maryland, State
of Minnesota or State of North Carolina or (iii) a day on which banking
institutions in the City of New York, or the State of Iowa, State of Maryland,
State of Minnesota or State of North Carolina are authorized or obligated by law
or executive order to be closed.

            Certificate: Any one of the Class A Certificates or Class B
Certificates.

            Certificate Account: The trust account established and maintained by
the Master Servicer in the name of the Master Servicer on behalf of the Trustee
pursuant to Section 3.01. The Certificate Account shall be an Eligible Account.

            Certificate Custodian: Initially, First Union National Bank;
thereafter any other Certificate Custodian acceptable to The Depository Trust
Company and selected by the Trustee.

            Certificate Register and Certificate Registrar: Respectively, the
register maintained pursuant to and the registrar provided for in Section 5.02.
The initial Certificate Registrar is the Trustee.

            Certificateholder or Holder: The Person in whose name a Certificate
is registered in the Certificate Register, except that, solely for the purposes
of the taking of any action under Articles VII or VIII, any Certificate
registered in the name of the Master Servicer, a Servicer or any affiliate
thereof shall be deemed not to be outstanding and the Voting Interest evidenced
thereby shall not be taken into account in determining whether the requisite
percentage of Certificates necessary to effect any such action has been
obtained.

            Class: All certificates whose form is identical except for
variations in the Percentage Interest evidenced thereby.

            Class I-A-1 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-1 and Exhibit C hereto.

            Class I-A-1 Certificateholder: The registered holder of a Class
I-A-1 Certificate.

            Class I-A-2 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-2 and Exhibit C hereto.

            Class I-A-2 Certificateholder: The registered holder of a Class
I-A-2 Certificate.

            Class I-A-3 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-3 and Exhibit C hereto.

            Class I-A-3 Certificateholder: The registered holder of a Class
I-A-3 Certificate.

            Class I-A-4 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-4 and Exhibit C hereto.

            Class I-A-4 Certificateholder: The registered holder of a Class
I-A-4 Certificate.

            Class I-A-5 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-5 and Exhibit C hereto.

            Class I-A-5 Certificateholder: The registered holder of a Class
I-A-5 Certificate.

            Class I-A-6 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-6 and Exhibit C hereto.

            Class I-A-6 Certificateholder: The registered holder of a Class
I-A-6 Certificate.

            Class I-A-PO Certificate: Any one of the Certificates executed by
the Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-I-A-PO and Exhibit C hereto.

            Class I-A-PO Deferred Amount: For any Distribution Date prior to the
Cross-Over Date, the difference between (A) the sum of (x) the amount by which
the sum of the Class I-A-PO Optimal Principal Amounts for the Class I-A-PO
Certificate for all prior Distribution Dates exceeded the amounts distributed on
the Class I-A-PO Certificates on such prior Distribution Dates pursuant to
Clause (i) Paragraph third Clause (A) of Section 4.01(a) and (y) the sum of the
product for each Group I Discount Mortgage Loan which became a Liquidated Loan
at any time on or prior to the last day of the applicable Unscheduled Principal
Receipt Period for the current Distribution Date of (a) the PO Fraction for such
Group I Discount Mortgage Loan and (b) an amount equal to the principal portion
of Realized Losses (other than Bankruptcy Losses due to Debt Service Reductions)
incurred with respect to such Mortgage Loan other than Excess Special Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses and (B) amounts
distributed on the Class I-A-PO Certificates on prior Distribution Dates
pursuant to Clause (i) Paragraph fourth Clause (A) of Section 4.01(a). On and
after the Cross-Over Date, the Class I-A-PO Deferred Amount will be zero. No
interest will accrue on any Class I-A-PO Deferred Amount.

            Class I-A-PO Optimal Principal Amount: As to any Distribution Date,
an amount equal to the sum as to each Group I Mortgage Loan that is an
Outstanding Mortgage Loan, of the product of (x) the PO Fraction with respect to
such Group I Mortgage Loan and (y) the sum of:

            (i) (A) the principal portion of the Monthly Payment due on the Due
      Date occurring in the month of such Distribution Date on such Group I
      Mortgage Loan, less (B) if the Bankruptcy Loss Amount has been reduced to
      zero, the principal portion of any Debt Service Reduction with respect to
      such Group I Mortgage Loan;

            (ii) all Unscheduled Principal Receipts that were received by a
      Servicer with respect to such Group I Mortgage Loan during the Applicable
      Unscheduled Principal Receipt Period relating to such Distribution Date
      for each applicable type of Unscheduled Principal Receipt;

            (iii) the Scheduled Principal Balance of each Group I Mortgage Loan
      which, during the month preceding the month of such Distribution Date, was
      repurchased by the Seller pursuant to Section 2.02 or 2.03; and

            (iv) the excess of the unpaid principal balance of such Group I
      Mortgage Loan substituted for a defective Group I Mortgage Loan during the
      month preceding the month in which such Distribution Date occurs over the
      unpaid principal balance of such defective Group I Mortgage Loan, less the
      amount allocable to the principal portion of any unreimbursed Periodic
      Advances previously made by the applicable Servicer, the Master Servicer
      or the Trustee in respect of such defective Group I Mortgage Loan.

            Class I-A-R Certificate: The Certificate executed by the Trustee and
authenticated by the Trustee or the Authenticating Agent in substantially the
form set forth in Exhibit A-I-A-R and Exhibit C hereto.

            Class I-A-R Certificateholder: The registered holder of the Class
I-A-R Certificate.

            Class II-A-1 Certificate: Any one of the Certificates executed by
the Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-II-A-1 and Exhibit C hereto.

            Class II-A-1 Certificateholder: The registered holder of a Class
II-A-1 Certificate.

            Class II-A-2 Certificate: Any one of the Certificates executed by
the Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-II-A-2 and Exhibit C hereto.

            Class II-A-2 Certificateholder: The registered holder of a Class
II-A-2 Certificate.

            Class II-A-PO Certificate: Any one of the Certificates executed by
the Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit A-II-A-PO and Exhibit C hereto.

            Class II-A-PO Certificateholder: The registered holder of a Class
II-A-PO Certificate.

            Class II-A-PO Deferred Amount: For any Distribution Date prior to
the Cross-Over Date, the difference between (A) the sum of (x) the amount by
which the sum of the Class II-A-PO Optimal Principal Amounts for the Class
II-A-PO Certificates for all prior Distribution Dates exceeded the amounts
distributed on the Class II-A-PO Certificates on such prior Distribution Dates
pursuant to Clause (i) Paragraph third Clause (B) of Section 4.01(a) and (y) the
sum of the product for each Group II Discount Mortgage Loan which became a
Liquidated Loan at any time on or prior to the last day of the applicable
Unscheduled Principal Receipt Period for the current Distribution Date of (a)
the PO Fraction for such Group II Discount Mortgage Loan and (b) an amount equal
to the principal portion of Realized Losses (other than Bankruptcy Losses due to
Debt Service Reductions) incurred with respect to such Mortgage Loan other than
Excess Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses
and (B) amounts distributed on the Class II-A-PO Certificates on prior
Distribution Dates pursuant to Clause (i) Paragraph fourth Clause (B) of Section
4.01(a). On and after the Cross-Over Date, the Class II-A-PO Deferred Amount
will be zero. No interest will accrue on any Class II-A-PO Deferred Amount.

            Class II-A-PO Optimal Principal Amount: As to any Distribution Date,
an amount equal to the sum as to each Group II Mortgage Loan that is an
Outstanding Mortgage Loan, of the product of (x) the PO Fraction with respect to
such Group II Mortgage Loan and (y) the sum of:

            (i) (A) the principal portion of the Monthly Payment due on the Due
      Date occurring in the month of such Distribution Date on such Group II
      Mortgage Loan, less (B) if the Bankruptcy Loss Amount has been reduced to
      zero, the principal portion of any Debt Service Reduction with respect to
      such Group II Mortgage Loan;

            (ii) all Unscheduled Principal Receipts that were received by a
      Servicer with respect to such Group II Mortgage Loan during the Applicable
      Unscheduled Principal Receipt Period relating to such Distribution Date
      for each applicable type of Unscheduled Principal Receipt;

            (iii) the Scheduled Principal Balance of each Group II Mortgage Loan
      which, during the month preceding the month of such Distribution Date, was
      repurchased by the Seller pursuant to Section 2.02 or 2.03; and

            (iv) the excess of the unpaid principal balance of such Group II
      Mortgage Loan substituted for a defective Group II Mortgage Loan during
      the month preceding the month in which such Distribution Date occurs over
      the unpaid principal balance of such defective Group II Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Group II Mortgage
      Loan.

            Class A Certificate: Any of the Group I-A Certificates or Group II-A
Certificates.

            Class A Certificateholder: The registered holder of a Class A
Certificate.

            Class A Interest Accrual Amount: As to any Distribution Date, the
sum of the Interest Accrual Amounts for the Classes of Class A Certificates with
respect to such Distribution Date.

            Class A Interest Percentage: As to any Distribution Date and any
Class of Class A Certificates (other than the Class I-A-PO and Class II-A-PO
Certificates), the percentage calculated by dividing the Interest Accrual Amount
of such Class (determined without regard to clause (ii) of the definition
thereof) by the Class A Interest Accrual Amount (determined without regard to
clause (ii) of the definition of each Interest Accrual Amount).

            Class A Pass-Through Rate: As to the Class I-A-1, Class I-A-2, Class
I-A-3, Class I-A-4, Class I-A-5, Class I-A-6, Class I-A-R, Class II-A-1 and
Class II-A-2 Certificates, 7.250% per annum. The Class I-A-PO and Class II-A-PO
Certificates are not entitled to interest and do not have Class A Pass-Through
Rates.

            Class A Unpaid Interest Shortfall: As to any Distribution Date and
Class of Class A Certificates, the amount, if any, by which the aggregate of the
Group I-A Interest Shortfall Amounts or Group II-A Interest Shortfall Amounts
for such Class for prior Distribution Dates is in excess of the amounts
distributed in respect of such Class on prior Distribution Dates pursuant to
Clause (i) Paragraph second of Section 4.01(a).

            Class B Certificate: Any one of the Class B-1 Certificates, Class
B-2 Certificates, Class B-3 Certificates, Class B-4 Certificates, Class B-5
Certificates or Class B-6 Certificates.

            Class B Certificateholder: The registered holder of a Class B
Certificate.

            Class B Distribution Amount: Any of the Class B-1, Class B-2, Class
B-3, Class B-4, Class B-5 or Class B-6 Distribution Amounts.

            Class B Interest Accrual Amount: As to any Distribution Date, the
sum of the Interest Accrual Amounts for the Classes of Class B Certificates with
respect to such Distribution Date.

            Class B Interest Percentage: As to any Distribution Date and any
Class of Class B Certificates, the percentage calculated by dividing the
Interest Accrual Amount of such Class (determined without regard to clause (ii)
of the definition thereof) by the Class B Interest Accrual Amount (determined
without regard to clause (ii) of the definition of each Interest Accrual
Amount).

            Class B Interest Shortfall Amount: Any of the Class B-1 Interest
Shortfall Amount, Class B-2 Interest Shortfall Amount, Class B-3 Interest
Shortfall Amount, Class B-4 Interest Shortfall Amount, Class B-5 Interest
Shortfall Amount or Class B-6 Interest Shortfall Amount.

            Class B Loan Group I Optimal Principal Amount: Any of the Class B-1,
Class B-2, Class B-3, Class B-4, Class B-5 or Class B-6 Loan Group I Optimal
Principal Amounts.

            Class B Loan Group II Optimal Principal Amount: Any of the Class
B-1, Class B-2, Class B-3, Class B-4, Class B-5 or Class B-6 Loan Group II
Optimal Principal Amounts.

            Class B Loss Percentage: As to any Determination Date and any Class
of Class B Certificates then outstanding, the percentage calculated by dividing
the Principal Balance of such Class B by the Class B Principal Balance
(determined without regard to any Principal Balance of any Class of Class B
Certificates not then outstanding), in each case determined as of the preceding
Determination Date.

            Class B Optimal Principal Amount: Any of the Class B-1, Class B-2,
Class B-3, Class B-4, Class B-5 or Class B-6 Optimal Principal Amounts.

            Class B Pass-Through Rate: As to any Distribution Date, 7.250% per
annum.

            Class B Principal Balance: As of any date, an amount equal to the
sum of the Class B-1 Principal Balance, Class B-2 Principal Balance, Class B-3
Principal Balance, Class B-4 Principal Balance, Class B-5 Principal Balance and
Class B-6 Principal Balance.

            Class B Principal Distribution Amount: Any of the Class B-1, Class
B-2, Class B-3, Class B-4, Class B-5 or Class B-6 Principal Distribution
Amounts.

            Class B Unpaid Interest Shortfall: Any of the Class B-1 Unpaid
Interest Shortfall, Class B-2 Unpaid Interest Shortfall, Class B-3 Unpaid
Interest Shortfall, Class B-4 Unpaid Interest Shortfall, Class B-5 Unpaid
Interest Shortfall or Class B-6 Unpaid Interest Shortfall.

            Class B-1 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-1 and Exhibit C hereto.

            Class B-1 Certificateholder: The registered holder of a Class B-1
Certificate.

            Class B-1 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-1 Certificates pursuant to
Clause (ii) Paragraphs first, second and third of Section 4.01(a).

            Class B-1 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-1 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-1 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph first of Section 4.01(a).

            Class B-1 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-1 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-1 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-1 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-1 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-1 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-1 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-1 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-1 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-1 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-1 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-1 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-1 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-1 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-1 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-1 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-1 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-1 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-1 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-1 Optimal Principal Amount
will equal the lesser of (A) the Class B-1 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-1 Certificates.

            Class B-1 Principal Balance: As to the first Determination Date, the
Original Class B-1 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-1 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-1 Certificates on
prior Distribution Dates (A) pursuant to Clause (ii) Paragraph third of Section
4.01(a) and (B) as a result of a Principal Adjustment and (b) the Realized
Losses allocated through such Determination Date to the Class B-1 Certificates
pursuant to Section 4.02(b) and (ii) the Aggregate Adjusted Pool Amount as of
the preceding Distribution Date less the Aggregate Class A Principal Balance as
of such Determination Date.

            Class B-1 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-1 Certificates
pursuant to Clause (ii) Paragraph third of Section 4.01(a).

            Class B-1 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-1 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-1 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph second of Section 4.01(a).

            Class B-2 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-2 and Exhibit C hereto.

            Class B-2 Certificateholder: The registered holder of a Class B-2
Certificate.

            Class B-2 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-2 Certificates pursuant to
Clause (ii) Paragraphs fourth, fifth and sixth of Section 4.01(a).

            Class B-2 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-2 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-2 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph fourth of Section 4.01(a).

            Class B-2 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-2 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-2 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-2 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-2 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-2 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-2 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-2 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-2 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-2 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-2 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-2 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-2 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-2 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-2 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-2 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-2 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-2 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-2 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-2 Optimal Principal Amount
will equal the lesser of (A) the Class B-2 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-2 Certificates.

            Class B-2 Principal Balance: As to the first Determination Date, the
Original Class B-2 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-2 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-2 Certificates on
prior Distribution Dates (A) pursuant to Clause (ii) Paragraph sixth of Section
4.01(a) and (B) as a result of a Principal Adjustment and (b) the Realized
Losses allocated through such Determination Date to the Class B-2 Certificates
pursuant to Section 4.02(b) and (ii) the Aggregate Adjusted Pool Amount as of
the preceding Distribution Date less the sum of the Aggregate Class A Principal
Balance and the Class B-1 Principal Balance as of such Determination Date.

            Class B-2 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-2 Certificates
pursuant to Clause (ii) Paragraph sixth of Section 4.01(a).

            Class B-2 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-2 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-2 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph fifth of Section 4.01(a).

            Class B-3 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-3 and Exhibit C hereto.

            Class B-3 Certificateholder:  The registered holder of a Class B-3
Certificate.

            Class B-3 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-3 Certificates pursuant to
Clause (ii) Paragraphs seventh, eighth and ninth of Section 4.01(a).

            Class B-3 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-3 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-3 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph seventh of Section 4.01(a).

            Class B-3 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-3 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-3 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-3 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-3 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-3 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-3 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-3 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-3 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-3 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-3 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-3 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-3 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-3 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-3 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-3 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-3 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-3 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-3 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-3 Optimal Principal Amount
will equal the lesser of (A) the Class B-3 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-3 Certificates.

            Class B-3 Principal Balance: As to the first Determination Date, the
Original Class B-3 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-3 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-3 Certificates on
prior Distribution Dates (A) pursuant to Clause (ii) Paragraph ninth of Section
4.01(a) and (B) as a result of a Principal Adjustment and (b) the Realized
Losses allocated through such Determination Date to the Class B-3 Certificates
pursuant to Section 4.02(b) and (ii) the Aggregate Adjusted Pool Amount as of
the preceding Distribution Date less the sum of the Aggregate Class A Principal
Balance, the Class B-1 Principal Balance and the Class B-2 Principal Balance as
of such Determination Date.

            Class B-3 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-3 Certificates
pursuant to Clause (ii) Paragraph ninth of Section 4.01(a).

            Class B-3 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-3 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-3 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph eighth of Section 4.01(a).

            Class B-4 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-4 and Exhibit C hereto.

            Class B-4 Certificateholder: The registered holder of a Class B-4
Certificate.

            Class B-4 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-4 Certificates pursuant to
Clause (ii) Paragraphs tenth, eleventh, and twelfth of Section 4.01(a).

            Class B-4 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-4 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-4 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph tenth of Section 4.01(a).

            Class B-4 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-4 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-4 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-4 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-4 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-4 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-4 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-4 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-4 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-4 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-4 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-4 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-4 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-4 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-4 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-4 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-4 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-4 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-4 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-4 Optimal Principal Amount
will equal the lesser of (A) the Class B-4 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-4 Certificates.

            Class B-4 Principal Balance: As to the first Determination Date, the
Original Class B-4 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-4 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-4 Certificates on
prior Distribution Dates (A) pursuant to Clause (ii) Paragraph twelfth of
Section 4.01(a) and (B) as a result of a Principal Adjustment and (b) the
Realized Losses allocated through such Determination Date to the Class B-4
Certificates pursuant to Section 4.02(b) and (ii) the Aggregate Adjusted Pool
Amount as of the preceding Distribution Date less the sum of the Aggregate Class
A Principal Balance, the Class B-1 Principal Balance, the Class B-2 Principal
Balance and the Class B-3 Principal Balance as of such Determination Date.

            Class B-4 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-4 Certificates
pursuant to Clause (ii) Paragraph twelfth of Section 4.01(a).

            Class B-4 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-4 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-4 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph eleventh of Section 4.01(a).

            Class B-5 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-5 and Exhibit C hereto.

            Class B-5 Certificateholder: The registered holder of a Class B-5
Certificate.

            Class B-5 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-5 Certificates pursuant to
Clause (ii) Paragraphs thirteenth, fourteenth, and fifteenth of Section 4.01(a).

            Class B-5 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-5 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-5 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph thirteenth of Section 4.01(a).

            Class B-5 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-5 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-5 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-5 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-5 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-5 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-5 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-5 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-5 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-5 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-5 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-5 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-5 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-5 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-5 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-5 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-5 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-5 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-5 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-5 Optimal Principal Amount
will equal the lesser of (A) the Class B-5 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-5 Certificates.

            Class B-5 Principal Balance: As to the first Determination Date, the
Original Class B-5 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-5 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-5 Certificates on
prior Distribution Dates (A) pursuant to Clause (ii) Paragraph fifteenth of
Section 4.01(a) and (B) as a result of a Principal Adjustment and (b) the
Realized Losses allocated through such Determination Date to the Class B-5
Certificates pursuant to Section 4.02(b) and (ii) the Aggregate Adjusted Pool
Amount as of the preceding Distribution Date less the sum of the Aggregate Class
A Principal Balance, the Class B-1 Principal Balance, the Class B-2 Principal
Balance, the Class B-3 Principal Balance and the Class B-4 Principal Balance as
of such Determination Date.

            Class B-5 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-5 Certificates
pursuant to Clause (ii) Paragraph fifteenth of Section 4.01(a).

            Class B-5 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-5 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-5 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph fourteenth of Section 4.01(a).

            Class B-6 Certificate: Any one of the Certificates executed by the
Trustee and authenticated by the Trustee or the Authenticating Agent in
substantially the form set forth in Exhibit B-6 and Exhibit C hereto.

            Class B-6 Certificateholder: The registered holder of a Class B-6
Certificate.

            Class B-6 Distribution Amount: As to any Distribution Date, any
amount distributable to the Holders of the Class B-6 Certificates pursuant to
Clause (ii) Paragraphs sixteenth, seventeenth and eighteenth of Section 4.01(a).

            Class B-6 Interest Shortfall Amount: As to any Distribution Date,
any amount by which the Interest Accrual Amount of the Class B-6 Certificates
with respect to such Distribution Date exceeds the amount distributed in respect
of the Class B-6 Certificates on such Distribution Date pursuant to Clause (ii)
Paragraph sixteenth of Section 4.01(a).

            Class B-6 Loan Group I Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group I, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-6 Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-6 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group I Class B-6 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-6 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-6 Loan Group II Optimal Principal Amount: As to any
Distribution Date, an amount equal to the sum, as to each Outstanding Mortgage
Loan in Loan Group II, of the product of (x) the Non-PO Fraction with respect to
such Mortgage Loan and (y) the sum of:

            (i) the Group II Class B-6 Percentage of (A) the principal portion
      of the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group II Class B-6 Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

            (iii) the Group II Class B-6 Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

            (iv) the Group II Class B-6 Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Class B-6 Optimal Principal Amount: As to any Distribution Date, an
amount equal to the sum, as to each Outstanding Mortgage Loan, of the product of
(x) the Non-PO Fraction with respect to such Mortgage Loan and (y) the sum of:

            (i) the Group I Class B-6 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-6 Percentage (with respect to
      each such Group II Mortgage Loan) of (A) the principal portion of the
      Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

            (ii) the Group I Class B-6 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-6 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of all
      Unscheduled Principal Receipts that were received by a Servicer with
      respect to such Mortgage Loan during the Applicable Unscheduled Principal
      Receipt Period relating to such Distribution Date for each applicable type
      of Unscheduled Principal Receipt;

            (iii) the Group I Class B-6 Prepayment Percentage (with respect to
      each such Group I Mortgage Loan) or Group II Class B-6 Prepayment
      Percentage (with respect to each such Group II Mortgage Loan) of the
      Scheduled Principal Balance of such Mortgage Loan which, during the month
      preceding the month of such Distribution Date, was repurchased by the
      Seller pursuant to Section 2.02 or 2.03; and

            (iv) the Group I Class B-6 Percentage (with respect to each such
      Group I Mortgage Loan) or Group II Class B-6 Percentage (with respect to
      each such Group II Mortgage Loan) of the excess of the unpaid principal
      balance of such Mortgage Loan substituted for a defective Mortgage Loan
      during the month preceding the month in which such Distribution Date
      occurs over the unpaid principal balance of such defective Mortgage Loan,
      less the amount allocable to the principal portion of any unreimbursed
      Periodic Advances previously made by the applicable Servicer, the Master
      Servicer or the Trustee in respect of such defective Mortgage Loan;

provided, however, that if an Optimal Adjustment Event occurs with respect to
such Class and such Distribution Date, the Class B-6 Optimal Principal Amount
will equal the lesser of (A) the Class B-6 Optimal Principal Amount calculated
as described in the preceding provisions and (B) the Adjusted Principal Balance
for the Class B-6 Certificates.

            Class B-6 Principal Balance: As to the first Determination Date, the
Original Class B-6 Principal Balance. As of any subsequent Determination Date,
the lesser of (i) the Original Class B-6 Principal Balance less the sum of (a)
all amounts previously distributed in respect of the Class B-6 Certificates on
prior Distribution Dates pursuant to Clause (ii) Paragraph eighteenth of Section
4.01(a) and (b) the Realized Losses allocated through such Determination Date to
the Class B-6 Certificates pursuant to Section 4.02(b) and (ii) the Aggregate
Adjusted Pool Amount as of the preceding Distribution Date less the Aggregate
Class A Principal Balance, the Class B-1 Principal Balance, the Class B-2
Principal Balance, the Class B-3 Principal Balance, the Class B-4 Principal
Balance and the Class B-5 Principal Balance as of such Determination Date.

            Class B-6 Principal Distribution Amount: As to any Distribution
Date, any amount distributable to the Holders of the Class B-6 Certificates
pursuant to Clause (ii) Paragraph eighteenth of Section 4.01(a).

            Class B-6 Unpaid Interest Shortfall: As to any Distribution Date,
the amount, if any, by which the aggregate of the Class B-6 Interest Shortfall
Amounts for prior Distribution Dates is in excess of the amounts distributed in
respect of the Class B-6 Certificates on prior Distribution Dates pursuant to
Clause (ii) Paragraph seventeenth of Section 4.01(a).

            Clearing Agency: An organization registered as a "clearing agency"
pursuant to Section 17A of the Securities Exchange Act of 1934, as amended. The
initial Clearing Agency shall be The Depository Trust Company.

            Clearing Agency Participant: A broker, dealer, bank, financial
institution or other Person for whom a Clearing Agency effects book-entry
transfers of securities deposited with the Clearing Agency.

            Closing Date: The date of initial issuance of the Certificates, as
set forth in Section 11.18.

            Code: The Internal Revenue Code of 1986, as it may be amended from
time to time, any successor statutes thereto, and applicable U.S. Department of
the Treasury temporary or final regulations promulgated thereunder.

            Compensating Interest: As to any Distribution Date, the lesser of
(a) the product of (i) 1/12th of 0.20% and (ii) the Pool Scheduled Principal
Balance for such Distribution Date and (b) the Available Master Servicing
Compensation for such Distribution Date.

            Co-op Shares: Shares issued by private non-profit housing
corporations.

            Corporate Trust Office: The principal office of the Trustee, at
which at any particular time its corporate trust business shall be administered,
which office at the date of the execution of this instrument is located at 401
South Tryon Street, NC 1179, Charlotte, North Carolina 28202.

            Cross-Over Date: The Distribution Date preceding the first
Distribution Date on which each of the Group I-A Percentage and Group II-A
Percentage (in each case, determined pursuant to clause (ii) of the definition
thereof) equals or exceeds 100%.

            Cross-Over Date Interest Shortfall: With respect to any Distribution
Date that occurs on or after the Cross-Over Date with respect to any Unscheduled
Principal Receipt (other than a Prepayment in Full):

            (A)   in the  case  where  the  Applicable  Unscheduled  Principal
                  Receipt  Period is the  Mid-Month  Receipt  Period  and such
                  Unscheduled  Principal  Receipt is received by the  Servicer
                  on or after the  Determination  Date in the month  preceding
                  the month of such  Distribution  Date but prior to the first
                  day of the month of such  Distribution  Date,  the amount of
                  interest  that  would  have  accrued  at  the  Net  Mortgage
                  Interest  Rate on the amount of such  Unscheduled  Principal
                  Receipt  from the day of its  receipt  or, if  earlier,  its
                  application  by the  Servicer  through  the  last day of the
                  month preceding the month of such Distribution Date; and

            (B)   in the  case  where  the  Applicable  Unscheduled  Principal
                  Receipt  Period is the Prior Month  Receipt  Period and such
                  Unscheduled  Principal  Receipt is received by the  Servicer
                  during the month  preceding  the month of such  Distribution
                  Date,  the amount of interest that would have accrued at the
                  Net   Mortgage   Interest   Rate  on  the   amount  of  such
                  Unscheduled  Principal  Receipt  from the day of its receipt
                  or, if earlier,  its application by the Servicer through the
                  last day of the month in which  such  Unscheduled  Principal
                  Receipt is received.

            Current Group I-A Interest Distribution Amount: As to any
Distribution Date, the amount distributed in respect of the Classes of Group I-A
Certificates pursuant to Clause (i) Paragraph first Clause (A) of Section
4.01(a) on such Distribution Date.

            Current Group II-A Interest Distribution Amount: As to any
Distribution Date, the amount distributed in respect of the Classes of Group
II-A Certificates pursuant to Clause (i) Paragraph first Clause (B) of Section
4.01(a) on such Distribution Date.

            Current Class B Interest Distribution Amount: As to any Distribution
Date, the amount distributed in respect of the Classes of Class B Certificates
pursuant to Clause (ii) Paragraphs first, fourth, seventh, tenth, thirteenth and
sixteenth of Section 4.01(a) on such Distribution Date.

            Current Class B-1 Fractional Interest: As to any Distribution Date
subsequent to the first Distribution Date, the percentage obtained by dividing
the sum of the Principal Balances of the Class B-2, Class B-3, Class B-4, Class
B-5 and Class B-6 Certificates by the Aggregate Non-PO Principal Balance. As to
the first Distribution Date, the Original Class B-1 Fractional Interest.

            Current Class B-2 Fractional Interest: As to any Distribution Date
subsequent to the first Distribution Date, the percentage obtained by dividing
the sum of the Principal Balances of the Class B-3, Class B-4, Class B-5 and
Class B-6 Certificates by the Aggregate Non-PO Principal Balance. As to the
first Distribution Date, the Original Class B-2 Fractional Interest.

            Current Class B-3 Fractional Interest: As to any Distribution Date
subsequent to the first Distribution Date, the percentage obtained by dividing
the sum of the Principal Balances of the Class B-4, Class B-5 and Class B-6
Certificates by the Aggregate Non-PO Principal Balance. As to the first
Distribution Date, the Original Class B-3 Fractional Interest.

            Current Class B-4 Fractional Interest: As to any Distribution Date
subsequent to the first Distribution Date, the percentage obtained by dividing
the sum of the Principal Balances of the Class B-5 and Class B-6 Certificates by
the Aggregate Non-PO Principal Balance. As to the first Distribution Date, the
Original Class B-4 Fractional Interest.

            Current Class B-5 Fractional Interest: As to any Distribution Date
subsequent to the first Distribution Date, the percentage obtained by dividing
the Principal Balance of the Class B-6 Certificates by the Aggregate Non-PO
Principal Balance. As to the first Distribution Date, the Original Class B-5
Fractional Interest.

            Curtailment: Any Principal Prepayment made by a Mortgagor which is
not a Prepayment in Full.

            Custodial Agreement: The Custodial Agreement, if any, from time to
time in effect between the Custodian named therein, the Seller, the Master
Servicer and the Trustee, substantially in the form of Exhibit E hereto, as the
same may be amended or modified from time to time in accordance with the terms
thereof.

            Custodial P&I Account: The Custodial P&I Account, as defined in each
of the Servicing Agreements, with respect to the Mortgage Loans. In determining
whether the Custodial P&I Account under any Servicing Agreement is "acceptable"
to the Master Servicer (as may be required by the definition of "Eligible
Account" contained in the Servicing Agreements), the Master Servicer shall
require that any such account shall be acceptable to each of the Rating
Agencies.

            Custodian: Initially, the Trustee, and thereafter the Custodian, if
any, hereafter appointed by the Trustee pursuant to Section 8.13, or its
successor in interest under the Custodial Agreement. The Custodian may (but need
not) be the Trustee or any Person directly or indirectly controlling or
controlled by or under common control of the Trustee. Neither a Servicer, nor
the Seller nor the Master Servicer nor any Person directly or indirectly
controlling or controlled by or under common control with any such Person may be
appointed Custodian.

            Cut-Off Date: The first day of the month of initial issuance of the
Certificates as set forth in Section 11.01.

            Cut-Off Date Aggregate Principal Balance: The aggregate of the
Cut-Off Date Principal Balances of the Mortgage Loans is as set forth in Section
11.02.

            Cut-Off Date Principal Balance: As to each Mortgage Loan, its unpaid
principal balance as of the close of business on the Cut-Off Date (but without
giving effect to any Unscheduled Principal Receipts received or applied on the
Cut-Off Date), reduced by all payments of principal due on or before the Cut-Off
Date and not paid, and increased by scheduled monthly payments of principal due
after the Cut-Off Date but received by the related Servicer on or before the
Cut-Off Date.

            Debt Service Reduction: With respect to any Mortgage Loan, a
reduction in the scheduled Monthly Payment for such Mortgage Loan by a court of
competent jurisdiction in a proceeding under the Bankruptcy Code, except such a
reduction constituting a Deficient Valuation.

            Deficient Valuation: With respect to any Mortgage Loan, a valuation
by a court of competent jurisdiction of the Mortgaged Property in an amount less
than the then-outstanding indebtedness under the Mortgage Loan, or any reduction
in the amount of principal to be paid in connection with any scheduled Monthly
Payment that results in a permanent forgiveness of principal, which valuation or
reduction results from a proceeding under the Bankruptcy Code.

            Definitive Certificates: As defined in Section 5.01(b).

            Denomination: The amount, if any, specified on the face of each
Certificate representing the principal portion of the Cut-Off Date Aggregate
Principal Balance evidenced by such Certificate.

            Determination Date: The 17th day of the month in which the related
Distribution Date occurs, or if such 17th day is not a Business Day, the
Business Day preceding such 17th day.

            Discount Mortgage Loan: A Group I Discount Mortgage Loan or Group II
Discount Mortgage Loan.

            Distribution Date: The 25th day of any month, beginning in the month
following the month of initial issuance of the Certificates, or if such 25th day
is not a Business Day, the Business Day following such 25th day.

            Dual Collateral Pledge Agreement: As defined in the MSDW Servicing
Agreement.

            Due Date: With respect to any Mortgage Loan, the day of the month in
which the Monthly Payment on such Mortgage Loan is scheduled to be paid.

            Eligible Account: One or more accounts (i) that are maintained with
a depository institution (which may be the Master Servicer) whose long-term debt
obligations (or, in the case of a depository institution which is part of a
holding company structure, the long-term debt obligations of such parent holding
company) at the time of deposit therein are rated at least "AA" (or the
equivalent) by each of the Rating Agencies, (ii) the deposits in which are fully
insured by the FDIC through either the Bank Insurance Fund or the Savings
Association Insurance Fund, (iii) the deposits in which are insured by the FDIC
through either the Bank Insurance Fund or the Savings Association Insurance Fund
(to the limit established by the FDIC) and the uninsured deposits in which
accounts are otherwise secured, as evidenced by an Opinion of Counsel delivered
to the Trustee, such that the Trustee, on behalf of the Certificateholders has a
claim with respect to the funds in such accounts or a perfected first security
interest against any collateral securing such funds that is superior to claims
of any other depositors or creditors of the depository institution with which
such accounts are maintained, (iv) that are trust accounts maintained with the
trust department of a federal or state chartered depository institution or trust
company acting in its fiduciary capacity or (v) such other account that is
acceptable to each of the Rating Agencies and would not cause the Trust Estate
to fail to qualify as a REMIC or result in the imposition of any federal tax on
the REMIC.

            Eligible Investments: At any time, any one or more of the following
obligations and securities which shall mature not later than the Business Day
preceding the Distribution Date next succeeding the date of such investment,
provided that such investments continue to qualify as "cash flow investments" as
defined in Code Section 860G(a)(6):

            (i) obligations of the United States of America or any agency
      thereof, provided such obligations are backed by the full faith and credit
      of the United States of America;

            (ii) general obligations of or obligations guaranteed by any state
      of the United States of America or the District of Columbia receiving the
      highest short-term or highest long-term rating of each Rating Agency, or
      such lower rating as would not result in the downgrading or withdrawal of
      the rating then assigned to any of the Certificates by either Rating
      Agency or result in any of such rated Certificates being placed on credit
      review status (other than for possible upgrading) by either Rating Agency;

            (iii) commercial or finance company paper which is then rated in the
      highest long-term commercial or finance company paper rating category of
      each Rating Agency or the highest short-term rating category of each
      Rating Agency, or such lower rating category as would not result in the
      downgrading or withdrawal of the rating then assigned to any of the
      Certificates by either Rating Agency or result in any of such rated
      Certificates being placed on credit review status (other than for possible
      upgrading) by either Rating Agency;

            (iv) certificates of deposit, demand or time deposits, federal funds
      or banker's acceptances issued by any depository institution or trust
      company incorporated under the laws of the United States or of any state
      thereof and subject to supervision and examination by federal and/or state
      banking authorities, provided that the commercial paper and/or debt
      obligations of such depository institution or trust company (or in the
      case of the principal depository institution in a holding company system,
      the commercial paper or debt obligations of such holding company) are then
      rated in the highest short-term or the highest long-term rating category
      for such securities of each of the Rating Agencies, or such lower rating
      categories as would not result in the downgrading or withdrawal of the
      rating then assigned to any of the Certificates by either Rating Agency or
      result in any of such rated Certificates being placed on credit review
      status (other than for possible upgrading) by either Rating Agency;

            (v) guaranteed reinvestment agreements issued by any bank, insurance
      company or other corporation acceptable to each Rating Agency at the time
      of the issuance of such agreements;

            (vi) repurchase agreements on obligations with respect to any
      security described in clauses (i) or (ii) above or any other security
      issued or guaranteed by an agency or instrumentality of the United States
      of America, in either case entered into with a depository institution or
      trust company (acting as principal) described in (iv) above;

            (vii) securities (other than stripped bonds or stripped coupon
      securities) bearing interest or sold at a discount issued by any
      corporation incorporated under the laws of the United States of America or
      any state thereof which, at the time of such investment or contractual
      commitment providing for such investment, are then rated in the highest
      short-term or the highest long-term rating category by each Rating Agency,
      or in such lower rating category as would not result in the downgrading or
      withdrawal of the rating then assigned to any of the Certificates by
      either Rating Agency or result in any of such rated Certificates being
      placed on credit review status (other than for possible upgrading) by
      either Rating Agency; and

            (viii) such other investments acceptable to each Rating Agency as
      would not result in the downgrading of the rating then assigned to the
      Certificates by either Rating Agency or result in any of such rated
      Certificates being placed on credit review status (other than for possible
      upgrading) by either Rating Agency.

            In no event shall an instrument be an Eligible Investment if such
instrument evidences either (i) a right to receive only interest payments with
respect to the obligations underlying such instrument, or (ii) 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 the date of investment of greater than 120% of the yield to
maturity at par of such underlying obligations.

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

            ERISA Prohibited Holder: As defined in Section 5.02(d).

            Errors and Omissions Policy: As defined in each of the Servicing
Agreements.

            Event of Default: Any of the events specified in Section 7.01.

            Excess Bankruptcy Loss: With respect to any Distribution Date and
any Mortgage Loan as to which a Bankruptcy Loss is realized in the month
preceding the month of such Distribution Date, (i) if the Aggregate Current
Bankruptcy Losses with respect to such Distribution Date exceed the
then-applicable Bankruptcy Loss Amount, then the portion of such Bankruptcy Loss
represented by the ratio of (a) the excess of the Aggregate Current Bankruptcy
Losses over the then-applicable Bankruptcy Loss Amount, divided by (b) the
Aggregate Current Bankruptcy Losses or (ii) if the Aggregate Current Bankruptcy
Losses with respect to such Distribution Date are less than or equal to the
then-applicable Bankruptcy Loss Amount, then zero. In addition, any Bankruptcy
Loss occurring with respect to a Mortgage Loan on or after the Cross-Over Date
will be an Excess Bankruptcy Loss.

            Excess Fraud Loss: With respect to any Distribution Date and any
Mortgage Loan as to which a Fraud Loss is realized in the month preceding the
month of such Distribution Date, (i) if the Aggregate Current Fraud Losses with
respect to such Distribution Date exceed the then-applicable Fraud Loss Amount,
then the portion of such Fraud Loss represented by the ratio of (a) the excess
of the Aggregate Current Fraud Losses over the then-applicable Fraud Loss
Amount, divided by (b) the Aggregate Current Fraud Losses, or (ii) if the
Aggregate Current Fraud Losses with respect to such Distribution Date are less
than or equal to the then-applicable Fraud Loss Amount, then zero. In addition,
any Fraud Loss occurring with respect to a Mortgage Loan on or after the
Cross-Over Date will be an Excess Fraud Loss.

            Excess Special Hazard Loss: With respect to any Distribution Date
and any Mortgage Loan as to which a Special Hazard Loss is realized in the month
preceding the month of such Distribution Date, (i) if the Aggregate Current
Special Hazard Losses with respect to such Distribution Date exceed the
then-applicable Special Hazard Loss Amount, then the portion of such Special
Hazard Loss represented by the ratio of (a) the excess of the Aggregate Current
Special Hazard Losses over the then-applicable Special Hazard Loss Amount,
divided by (b) the Aggregate Current Special Hazard Losses, or (ii) if the
Aggregate Current Special Hazard Losses with respect to such Distribution Date
are less than or equal to the then-applicable Special Hazard Loss Amount, then
zero. In addition, any Special Hazard Loss occurring with respect to a Mortgage
Loan on or after the Cross-Over Date will be an Excess Special Hazard Loss.

            Exhibit F-1 Mortgage Loan: Any of the Group I Mortgage Loans
identified in Exhibit F-1 hereto, as such Exhibit may be amended from time to
time in connection with a substitution pursuant to Section 2.02, which Mortgage
Loan is serviced under the Norwest Servicing Agreement.

            Exhibit F-2A Mortgage Loan: Any of the Group I Mortgage Loans
identified in Exhibit F-2A hereto, as such Exhibit may be amended from time to
time in connection with a substitution pursuant to Section 2.02, which Mortgage
Loan is serviced under the Norwest Servicing Agreement.

            Exhibit F-2B Mortgage Loan: Any of the Group II Mortgage Loans
identified in Exhibit F-2B hereto, as such Exhibit may be amended from time to
time in connection with a substitution pursuant to Section 2.02, which Mortgage
Loan is serviced under the Norwest Servicing Agreement.

            Exhibit F-3 Mortgage Loan: Any of the Group I Mortgage Loans
identified in Exhibit F-3 hereto, as such Exhibit may be amended from time to
time in connection with a substitution pursuant to Section 2.02, which Mortgage
Loan is serviced under an Other Servicing Agreement.

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

            FHLMC: The Federal Home Loan Mortgage Corporation or any successor
thereto.

            Fidelity Bond: As defined in each of the Servicing Agreements.

            Final Distribution Date: The Distribution Date on which the final
distribution in respect of the Certificates is made pursuant to Section 9.01.

            Final Scheduled Maturity Date: The Final Scheduled Maturity Date for
each Class of Certificates is February 25, 2030, which corresponds to the
"latest possible maturity date" for purposes of Section 860G(a)(1) of the
Internal Revenue Code of 1986, as amended.

            Fitch: Fitch IBCA, Inc., or its successors in interest.

            Fixed Retained Yield: The fixed percentage of interest on each
Mortgage Loan with a Mortgage Interest Rate greater than the sum of (a) 7.250%,
(b) the Servicing Fee Rate and (c) the Master Servicing Fee Rate, which will be
determined on a loan by loan basis and will equal the Mortgage Interest Rate on
each Mortgage Loan minus the sum of (a), (b) and (c), which is not assigned to
and not part of the Trust Estate.

            Fixed Retained Yield Rate: With respect to each Mortgage Loan, a per
annum rate equal to the greater of (a) zero and (b) the Mortgage Interest Rate
on such Mortgage Loan minus the sum of (i) 7.250%, (ii) the Servicing Fee Rate
and (iii) the Master Servicing Fee Rate.

            FNMA: Fannie Mae or any successor thereto.

            Foreclosure Profits: As to any Distribution Date, the excess, if
any, of (i) Net Liquidation Proceeds in respect of each Mortgage Loan that
became a Liquidated Loan during the Applicable Unscheduled Principal Receipt
Period with respect to Full Unscheduled Principal Receipts for such Distribution
Date over (ii) the sum of the unpaid principal balance of each such Liquidated
Loan plus accrued and unpaid interest at the applicable Mortgage Interest Rate
on the unpaid principal balance thereof from the Due Date to which interest was
last paid by the Mortgagor (or, in the case of a Liquidated Loan that had been
an REO Mortgage Loan, from the Due Date to which interest was last deemed to
have been paid) to the first day of the month in which such Distribution Date
occurs.

            Fraud Loss: A Liquidated Loan Loss as to which there was fraud in
the origination of such Mortgage Loan.

            Fraud Loss Amount: As of any Distribution Date after the Cut-Off
Date an amount equal to: (X) prior to the first anniversary of the Cut-Off Date
an amount equal to $4,012,569.07 minus the aggregate amount of Fraud Losses
allocated solely to the Class B Certificates in accordance with Section 4.02(a)
since the Cut-Off Date, and (Y) from the first through fifth anniversary of the
Cut-Off Date, an amount equal to (1) the lesser of (a) the Fraud Loss Amount as
of the most recent anniversary of the Cut-Off Date and (b) 1.00% of the
aggregate outstanding principal balance of all of the Mortgage Loans as of the
most recent anniversary of the Cut-Off Date minus (2) the Fraud Losses allocated
solely to the Class B Certificates in accordance with Section 4.02(a) since the
most recent anniversary of the Cut-Off Date. On and after the Cross-Over Date or
after the fifth anniversary of the Cut-Off Date the Fraud Loss Amount shall be
zero.

            Full Unscheduled Principal Receipt: Any Unscheduled Principal
Receipt with respect to a Mortgage Loan (i) in the amount of the outstanding
principal balance of such Mortgage Loan and resulting in the full satisfaction
of such Mortgage Loan or (ii) representing Liquidation Proceeds other than
Partial Liquidation Proceeds.

            Group I Adjusted Pool Amount: With respect to any Distribution Date,
the aggregate of the Cut-Off Date Principal Balances of the Group I Mortgage
Loans minus the sum of (i) all amounts in respect of principal received in
respect of the Group I Mortgage Loans (including, without limitation, amounts
received as Monthly Payments, Periodic Advances, Unscheduled Principal Receipts
and Substitution Principal Amounts) and distributed to Holders of the
Certificates on such Distribution Date and all prior Distribution Dates and (ii)
the principal portion of all Realized Losses (other than Debt Service
Reductions) incurred on such Mortgage Loans from the Cut-Off Date through the
end of the month preceding such Distribution Date.

            Group I Adjusted Pool Amount (PO Portion): With respect to any
Distribution Date, the sum of the amounts, calculated as follows, with respect
to all Outstanding Mortgage Loans that are Group I Mortgage Loans: the product
of (i) the PO Fraction for each such Group I Mortgage Loan and (ii) the
remainder of (A) the Cut-Off Date Principal Balance of such Mortgage Loan minus
(B) the sum of (x) all amounts in respect of principal received in respect of
such Group I Mortgage Loan (including, without limitation, amounts received as
Monthly Payments, Periodic Advances, Unscheduled Principal Receipts and
Substitution Principal Amounts) and distributed to Holders of the Certificates
on such Distribution Date and all prior Distribution Dates and (y) the principal
portion of any Realized Loss (other than a Debt Service Reduction) incurred on
such Group I Mortgage Loan from the Cut-Off Date through the end of the month
preceding such Distribution Date.

            Group I Apportioned Interest Percentage: As to any Distribution Date
and any Class of Group I-A Certificates or Class B Certificates, the percentage
calculated by dividing (a) in the case of a Class of Group I-A Certificates, the
Interest Accrual Amount and in the case of a Class of Class B Certificates, the
Apportioned Interest Accrual Amount for the Group I Apportioned Principal
Balance of such Class by (b) the Group I Interest Accrual Amount (determined
without regard to clause (ii) of the definition of each Interest Accrual
Amount).

            Group I Apportioned Principal Balance: As to any Distribution Date
and any Class of Class B Certificates, an amount equal to the product of (i) the
Principal Balance of the Class of Class B Certificates and (ii) a fraction, the
numerator of which is the Group I Subordinate Amount and the denominator of
which is the sum of the Group I Subordinate Amount and the Group II Subordinate
Amount.

            Group I Class B Percentage: Any one of the Group I Class B-1
Percentage, Group I Class B-2 Percentage, Group I Class B-3 Percentage, Group I
Class B-4 Percentage, Group I Class B-5 Percentage or Group I Class B-6
Percentage.

            Group I Class B Prepayment Percentage: Any of the Group I Class B-1
Prepayment Percentage, Group I Class B-2 Prepayment Percentage, Group I Class
B-3 Prepayment Percentage, Group I Class B-4 Prepayment Percentage, Group I
Class B-5 Prepayment Percentage or Group I Class B-6 Prepayment Percentage.

            Group I Class B-1 Percentage: As to any Distribution Date, the
percentage calculated by multiplying the Group I Subordinated Percentage by
either (i) if any Class B Certificates (other than the Class B-1 Certificates)
are eligible to receive principal distributions for such Distribution Date in
accordance with Section 4.01(d), a fraction, the numerator of which is the Class
B-1 Principal Balance (determined as of the Determination Date preceding such
Distribution Date) and the denominator of which is the sum of the Principal
Balances of the Classes of Class B Certificates eligible to receive principal
distributions for such Distribution Date in accordance with the provisions of
Section 4.01(d) or (ii) except as set forth in Section 4.01(d)(ii), in the event
that the Class B Certificates (other than the Class B-1 Certificates) are not
eligible to receive distributions of principal in accordance with Section
4.01(d)(i), one.

            Group I Class B-1 Prepayment Percentage: As to any Distribution
Date, the percentage calculated by multiplying the Group I Subordinated
Prepayment Percentage by either (i) if any Class B Certificates (other than the
Class B-1 Certificates) are eligible to receive principal distributions for such
Distribution Date in accordance with Section 4.01(d), a fraction, the numerator
of which is the Class B-1 Principal Balance (determined as of the Determination
Date preceding such Distribution Date) and the denominator of which is the sum
of the Principal Balances of the Classes of Class B Certificates eligible to
receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d) or (ii) except as set forth in Section
4.01(d)(ii), in the event that the Class B Certificates (other than the Class
B-1 Certificates) are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), one.

            Group I Class B-2 Percentage: As to any Distribution Date, except as
set forth in the next sentence, the percentage calculated by multiplying (i) the
Group I Subordinated Percentage by (ii) a fraction, the numerator of which is
the Class B-2 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-2 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group I
Class B-2 Percentage for such Distribution Date will be zero.

            Group I Class B-2 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group I Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-2 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-2
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group I Class B-2 Prepayment Percentage
for such Distribution Date will be zero.

            Group I Class B-3 Percentage: As to any Distribution Date, except as
set forth in the next sentence, the percentage calculated by multiplying (i) the
Group I Subordinated Percentage by (ii) a fraction, the numerator of which is
the Class B-3 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-3 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group I
Class B-3 Percentage for such Distribution Date will be zero.

            Group I Class B-3 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group I Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-3 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-3
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group I Class B-3 Prepayment Percentage
for such Distribution Date will be zero.

            Group I Class B-4 Percentage: As to any Distribution Date, except as
set forth in the next sentence, the percentage calculated by multiplying (i) the
Group I Subordinated Percentage by (ii) a fraction, the numerator of which is
the Class B-4 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-4 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group I
Class B-4 Percentage for such Distribution Date will be zero.

            Group I Class B-4 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group I Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-4 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-4
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group I Class B-4 Prepayment Percentage
for such Distribution Date will be zero.

            Group I Class B-5 Percentage: As to any Distribution Date, except as
set forth in the next sentence, the percentage calculated by multiplying (i) the
Group I Subordinated Percentage by (ii) a fraction, the numerator of which is
the Class B-5 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-5 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group I
Class B-5 Percentage for such Distribution Date will be zero.

            Group I Class B-5 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group I Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-5 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-5
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group I Class B-5 Prepayment Percentage
for such Distribution Date will be zero.

            Group I Class B-6 Percentage: As to any Distribution Date, except as
set forth in the next sentence, the percentage calculated by multiplying (i) the
Group I Subordinated Percentage by (ii) a fraction, the numerator of which is
the Class B-6 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-6 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group I
Class B-6 Percentage for such Distribution Date will be zero.

            Group I Class B-6 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group I Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-6 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-6
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group I Class B-6 Prepayment Percentage
for such Distribution Date will be zero.

            Group I Discount Mortgage Loan: A Group I Mortgage Loan with a Net
Mortgage Interest Rate of less than 7.250%.

            Group I Interest Accrual Amount: As to any Distribution Date, the
sum of the Group I-A Interest Accrual Amount and the Apportioned Interest
Accrual Amounts for the Group I Apportioned Principal Balances of the Class B
Certificates.

            Group I Mortgage Loans: Those Mortgage Loans listed on Exhibit F-1,
F-2A and F-3 attached hereto.

            Group I Net Foreclosure Profits: As to any Distribution Date, the
amount, if any, by which (i) Aggregate Group I Foreclosure Profits with respect
to such Distribution Date exceed (ii) Liquidated Loan Losses with respect to
Group I Mortgage Loans with respect to such Distribution Date.

            Group I Pool Balance (Non-PO Portion): As of any Distribution Date,
the sum of the amounts for each Group I Mortgage Loan that is an Outstanding
Mortgage Loan of the product of (i) the Non-PO Fraction for such Mortgage Loan
and (ii) the Scheduled Principal Balance of such Mortgage Loan.

            Group I Pool Balance (PO Portion): As of any Distribution Date, the
sum of the amounts for each Group I Mortgage Loan that is an Outstanding
Mortgage Loan of the product of (i) the PO Fraction for such Mortgage Loan and
(ii) the Scheduled Principal Balance of such Mortgage Loan.

            Group I Pool Distribution Amount: As of any Distribution Date, the
funds eligible for distribution to the Holders of the Group I-A Certificates and
Class B Certificates on such Distribution Date, which shall be the sum of (i)
all previously undistributed payments or other receipts on account of principal
and interest on or in respect of the Group I Mortgage Loans (including, without
limitation, the proceeds of any repurchase of a Group I Mortgage Loan by the
Seller and any Substitution Principal Amount) received by the Master Servicer
with respect to the applicable Remittance Date in the month of such Distribution
Date and any Unscheduled Principal Receipts received by the Master Servicer on
or prior to the Business Day preceding such Distribution Date, (ii) all Periodic
Advances made with respect to Group I Mortgage Loans by a Servicer pursuant to
the related Servicing Agreement or Periodic Advances with respect to Group I
Mortgage Loans made by the Master Servicer or the Trustee pursuant to Section
3.03, and (iii) all other amounts with respect to a Group I Mortgage Loan
required to be placed in the Certificate Account by the Servicer on or before
the applicable Remittance Date or by the Master Servicer or the Trustee on or
prior to the Distribution Date, but excluding the following:

            (a) amounts received as late payments of principal or interest with
      respect to a Group I Mortgage Loan and respecting which the Master
      Servicer or the Trustee has made one or more unreimbursed Periodic
      Advances;

            (b) the portion of Liquidation Proceeds used to reimburse any
      unreimbursed Periodic Advances with respect to a Group I Mortgage Loan by
      the Master Servicer or the Trustee;

            (c) those portions of each payment of interest on a particular Group
      I Mortgage Loan which represent (i) the Fixed Retained Yield, if any, (ii)
      the applicable Servicing Fee and (iii) the Master Servicing Fee;

            (d) all amounts representing scheduled payments of principal and
      interest on Group I Mortgage Loans due after the Due Date occurring in the
      month in which such Distribution Date occurs;

            (e) all Unscheduled Principal Receipts received by the Servicers
      with respect to Group I Mortgage Loans after the Applicable Unscheduled
      Principal Receipt Period relating to the Distribution Date for the
      applicable type of Unscheduled Principal Receipt, and all related payments
      of interest on such amounts;

            (f) all repurchase proceeds with respect to Group I Mortgage Loans
      repurchased by the Seller pursuant to Section 2.02 or 2.03 on or following
      the Due Date in the month in which such Distribution Date occurs and the
      difference between the unpaid principal balance of such Group I Mortgage
      Loan substituted for a defective Group I Mortgage Loan during the month
      preceding the month in which such Distribution Date occurs and the unpaid
      principal balance of such defective Group I Mortgage Loan;

            (g) that portion of Liquidation Proceeds and REO Proceeds with
      respect to any Group I Mortgage Loan which represents any unpaid Servicing
      Fee or Master Servicing Fee;

            (h)   all income  from  Eligible  Investments  that is held in the
      Certificate Account for the account of the Master Servicer;

            (i) all other amounts permitted to be withdrawn from the Certificate
      Account in respect of the Group I Mortgage Loans, to the extent not
      covered by clauses (a) through (h) above, or not required to be deposited
      in the Certificate Account under this Agreement;

            (j)   Group I Net Foreclosure Profits;

            (k)   Month End Interest in respect of Group I Mortgage Loans; and

            (l) the amount of any Recoveries in respect of principal with
      respect to a Group I Mortgage Loan which had previously been allocated as
      a loss to one or more Classes of the Class A or Class B Certificates
      pursuant to Section 4.02 other than Recoveries with respect to a Group I
      Mortgage Loan that are covered by the last sentence of Section 4.02(d).

            Group I Pool Scheduled Principal Balance: As to any Distribution
Date, the aggregate Scheduled Principal Balances of all Group I Mortgage Loans
that were Outstanding Mortgage Loans on the Due Date in the month preceding the
month of such Distribution Date.

            Group I Scheduled Principal Amount: The sum for each outstanding
Group I Mortgage Loan (including each defaulted Mortgage Loan, other than a
Liquidated Loan, with respect to which the related Mortgaged Property has been
acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for such
Mortgage Loan and (B) the sum of the amounts described in clauses y(i) and y(iv)
of the definition of Group I-A Non-PO Optimal Principal Amount, but without such
amount being multiplied by the Group I-A Percentage.

            Group I Subordinate Amount: As to any Distribution Date, the excess
of (i) the Group I Pool Balance (Non-PO Portion) over (ii) the Group I-A Non-PO
Principal Balance.

            Group I Subordinated Percentage: As to any Distribution Date, the
percentage which is the difference between 100% and the Group I-A Percentage for
such date.

            Group I Subordinated Prepayment Percentage: As to any Distribution
Date, the percentage which is the difference between 100% and the Group I-A
Prepayment Percentage for such date.

            Group I Unscheduled Principal Amount: The sum for each outstanding
Group I Mortgage Loan (including each defaulted Mortgage Loan, other than a
Liquidated Loan, with respect to which the related Mortgaged Property has been
acquired by the Trust Estate) of the product of (A) the Non-PO Fraction for such
Mortgage Loan and (B) the sum of the amounts described in clauses y(ii) and
y(iii) of the definition of Group I-A Non-PO Optimal Principal Amount, but
without such amount being multiplied by the Group I-A Prepayment Percentage.

            Group II Adjusted Pool Amount: With respect to any Distribution
Date, the aggregate of the Cut-Off Date Principal Balances of the Group II
Mortgage Loans minus the sum of (i) all amounts in respect of principal received
in respect of the Group II Mortgage Loans (including, without limitation,
amounts received as Monthly Payments, Periodic Advances, Unscheduled Principal
Receipts and Substitution Principal Amounts) and distributed to Holders of the
Certificates on such Distribution Date and all prior Distribution Dates and (ii)
the principal portion of all Realized Losses (other than Debt Service
Reductions) incurred on such Mortgage Loans from the Cut-Off Date through the
end of the month preceding such Distribution Date.

            Group II Adjusted Pool Amount (PO Portion): With respect to any
Distribution Date, the sum of the amounts, calculated as follows, with respect
to all Outstanding Mortgage Loans that are Group II Mortgage Loans: the product
of (i) the PO Fraction for each such Group II Mortgage Loan and (ii) the
remainder of (A) the Cut-Off Date Principal Balance of such Mortgage Loan minus
(B) the sum of (x) all amounts in respect of principal received in respect of
such Group II Mortgage Loan (including, without limitation, amounts received as
Monthly Payments, Periodic Advances, Unscheduled Principal Receipts and
Substitution Principal Amounts) and distributed to Holders of the Certificates
on such Distribution Date and all prior Distribution Dates and (y) the principal
portion of any Realized Loss (other than a Debt Service Reduction) incurred on
such Group II Mortgage Loan from the Cut-Off Date through the end of the month
preceding such Distribution Date.

            Group II Apportioned Interest Percentage: As to any Distribution
Date and any Class of Group II-A Certificates or Class B Certificates, the
percentage calculated by dividing (a) in the case of a Class of Group II-A
Certificates, the Interest Accrual Amount and in the case of a Class of Class B
Certificates, the Apportioned Interest Accrual Amount for the Group II
Apportioned Principal Balance of such Class by (b) the Group II Interest Accrual
Amount (determined without regard to clause (ii) of the definition of each
Interest Accrual Amount).

            Group II Apportioned Principal Balance: As to any Distribution Date
and any Class of Class B Certificates, an amount equal to the product of (i) the
Principal Balance of the Class of Class B Certificates and (ii) a fraction, the
numerator of which is the Group II Subordinate Amount and the denominator of
which is the sum of the Group I Subordinate Amount and the Group II Subordinate
Amount.

            Group II Class B Percentage: Any one of the Group II Class B-1
Percentage, Group II Class B-2 Percentage, Group II Class B-3 Percentage, Group
II Class B-4 Percentage, Group II Class B-5 Percentage or Group II Class B-6
Percentage.

            Group II Class B Prepayment Percentage: Any of the Group II Class
B-1 Prepayment Percentage, Group II Class B-2 Prepayment Percentage, Group II
Class B-3 Prepayment Percentage, Group II Class B-4 Prepayment Percentage, Group
II Class B-5 Prepayment Percentage or Group II Class B-6 Prepayment Percentage.

            Group II Class B-1 Percentage: As to any Distribution Date, the
percentage calculated by multiplying the Group II Subordinated Percentage by
either (i) if any Class B Certificates (other than the Class B-1 Certificates)
are eligible to receive principal distributions for such Distribution Date in
accordance with Section 4.01(d), a fraction, the numerator of which is the Class
B-1 Principal Balance (determined as of the Determination Date preceding such
Distribution Date) and the denominator of which is the sum of the Principal
Balances of the Classes of Class B Certificates eligible to receive principal
distributions for such Distribution Date in accordance with the provisions of
Section 4.01(d) or (ii) except as set forth in Section 4.01(d)(ii), in the event
that the Class B Certificates (other than the Class B-1 Certificates) are not
eligible to receive distributions of principal in accordance with Section
4.01(d)(i), one.

            Group II Class B-1 Prepayment Percentage: As to any Distribution
Date, the percentage calculated by multiplying the Group II Subordinated
Prepayment Percentage by either (i) if any Class B Certificates (other than the
Class B-1 Certificates) are eligible to receive principal distributions for such
Distribution Date in accordance with Section 4.01(d), a fraction, the numerator
of which is the Class B-1 Principal Balance (determined as of the Determination
Date preceding such Distribution Date) and the denominator of which is the sum
of the Principal Balances of the Classes of Class B Certificates eligible to
receive principal distributions for such Distribution Date in accordance with
the provisions of Section 4.01(d) or (ii) except as set forth in Section
4.01(d)(ii), in the event that the Class B Certificates (other than the Class
B-1 Certificates) are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), one.

            Group II Class B-2 Percentage: As to any Distribution Date, except
as set forth in the next sentence, the percentage calculated by multiplying (i)
the Group II Subordinated Percentage by (ii) a fraction, the numerator of which
is the Class B-2 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-2 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group II
Class B-2 Percentage for such Distribution Date will be zero.

            Group II Class B-2 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group II Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-2 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-2
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group II Class B-2 Prepayment Percentage
for such Distribution Date will be zero.

            Group II Class B-3 Percentage: As to any Distribution Date, except
as set forth in the next sentence, the percentage calculated by multiplying (i)
the Group II Subordinated Percentage by (ii) a fraction, the numerator of which
is the Class B-3 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-3 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group II
Class B-3 Percentage for such Distribution Date will be zero.

            Group II Class B-3 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group II Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-3 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-3
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group II Class B-3 Prepayment Percentage
for such Distribution Date will be zero.

            Group II Class B-4 Percentage: As to any Distribution Date, except
as set forth in the next sentence, the percentage calculated by multiplying (i)
the Group II Subordinated Percentage by (ii) a fraction, the numerator of which
is the Class B-4 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-4 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group II
Class B-4 Percentage for such Distribution Date will be zero.

            Group II Class B-4 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group II Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-4 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-4
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group II Class B-4 Prepayment Percentage
for such Distribution Date will be zero.

            Group II Class B-5 Percentage: As to any Distribution Date, except
as set forth in the next sentence, the percentage calculated by multiplying (i)
the Group II Subordinated Percentage by (ii) a fraction, the numerator of which
is the Class B-5 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-5 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group II
Class B-5 Percentage for such Distribution Date will be zero.

            Group II Class B-5 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group II Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-5 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-5
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group II Class B-5 Prepayment Percentage
for such Distribution Date will be zero.

            Group II Class B-6 Percentage: As to any Distribution Date, except
as set forth in the next sentence, the percentage calculated by multiplying (i)
the Group II Subordinated Percentage by (ii) a fraction, the numerator of which
is the Class B-6 Principal Balance (determined as of the Determination Date
preceding such Distribution Date) and the denominator of which is the sum of the
Principal Balances of the Classes of Class B Certificates eligible to receive
principal distributions for such Distribution Date in accordance with the
provisions of Section 4.01(d). Except as set forth in Section 4.01(d)(ii), in
the event that the Class B-6 Certificates are not eligible to receive
distributions of principal in accordance with Section 4.01(d)(i), the Group II
Class B-6 Percentage for such Distribution Date will be zero.

            Group II Class B-6 Prepayment Percentage: As to any Distribution
Date, except as set forth in the next sentence, the percentage calculated by
multiplying (i) the Group II Subordinated Prepayment Percentage by (ii) a
fraction, the numerator of which is the Class B-6 Principal Balance (determined
as of the Determination Date preceding such Distribution Date) and the
denominator of which is the sum of the Principal Balances of the Classes of
Class B Certificates eligible to receive principal distributions for such
Distribution Date in accordance with the provisions of Section 4.01(d). Except
as set forth in Section 4.01(d)(ii), in the event that the Class B-6
Certificates are not eligible to receive distributions of principal in
accordance with Section 4.01(d)(i), the Group II Class B-6 Prepayment Percentage
for such Distribution Date will be zero.

            Group II Discount Mortgage Loan: A Group II Mortgage Loan with a Net
Mortgage Interest Rate of less than 7.250%.

            Group II Interest Accrual Amount: As to any Distribution Date, the
sum of the Group II-A Interest Accrual Amount and the Apportioned Interest
Accrual Amounts for the Group II Apportioned Principal Balances of the Class B
Certificates.

            Group II Mortgage Loans: Those Mortgage Loans listed on Exhibit F-2B
attached hereto.

            Group II Net Foreclosure Profits: As to any Distribution Date, the
amount, if any, by which (i) Aggregate Group II Foreclosure Profits with respect
to such Distribution Date exceed (ii) Liquidated Loan Losses with respect to
Group II Mortgage Loans with respect to such Distribution Date.

            Group II Pool Balance (Non-PO Portion): As of any Distribution Date,
the sum of the amounts for each Group II Mortgage Loan that is an Outstanding
Mortgage Loan of the product of (i) the Non-PO Fraction for such Mortgage Loan
and (ii) the Scheduled Principal Balance of such Mortgage Loan.

            Group II Pool Balance (PO Portion): As of any Distribution Date, the
sum of the amounts for each Group II Mortgage Loan that is an Outstanding
Mortgage Loan of the product of (i) the PO Fraction for such Mortgage Loan and
(ii) the Scheduled Principal Balance of such Mortgage Loan.

            Group II Pool Distribution Amount: As of any Distribution Date, the
funds eligible for distribution to the Holders of the Group II-A Certificates
and Class B Certificates on such Distribution Date, which shall be the sum of
(i) all previously undistributed payments or other receipts on account of
principal and interest on or in respect of the Group II Mortgage Loans
(including, without limitation, the proceeds of any repurchase of a Group II
Mortgage Loan by the Seller and any Substitution Principal Amount) received by
the Master Servicer with respect to the applicable Remittance Date in the month
of such Distribution Date and any Unscheduled Principal Receipts received by the
Master Servicer on or prior to the Business Day preceding such Distribution
Date, (ii) all Periodic Advances made with respect to Group II Mortgage Loans by
a Servicer pursuant to the related Servicing Agreement or Periodic Advances with
respect to Group II Mortgage Loans made by the Master Servicer or the Trustee
pursuant to Section 3.03 and (iii) all other amounts with respect to a Group II
Mortgage Loan required to be placed in the Certificate Account by the Servicer
on or before the applicable Remittance Date or by the Master Servicer or the
Trustee on or prior to the Distribution Date, but excluding the following:

                  (a) amounts received as late payments of principal or interest
      with respect to a Group II Mortgage Loan and respecting which the Master
      Servicer or the Trustee has made one or more unreimbursed Periodic
      Advances;

                  (b) the portion of Liquidation Proceeds used to reimburse any
      unreimbursed Periodic Advances with respect to a Group II Mortgage Loan by
      the Master Servicer or the Trustee;

                  (c) those portions of each payment of interest on a particular
      Group II Mortgage Loan which represent (i) the Fixed Retained Yield, if
      any, (ii) the applicable Servicing Fee and (iii) the Master Servicing Fee;

                  (d) all amounts representing scheduled payments of principal
      and interest on Group II Mortgage Loans due after the Due Date occurring
      in the month in which such Distribution Date occurs;

                  (e) all Unscheduled Principal Receipts received by the
      Servicers with respect to Group II Mortgage Loans after the Applicable
      Unscheduled Principal Receipt Period relating to the Distribution Date for
      the applicable type of Unscheduled Principal Receipt, and all related
      payments of interest on such amounts;

                  (f) all repurchase proceeds with respect to Group II Mortgage
      Loans repurchased by the Seller pursuant to Section 2.02 or 2.03 on or
      following the Due Date in the month in which such Distribution Date occurs
      and the difference between the unpaid principal balance of such Group II
      Mortgage Loan substituted for a defective Group II Mortgage Loan during
      the month preceding the month in which such Distribution Date occurs and
      the unpaid principal balance of such defective Group II Mortgage Loan;

                  (g) that portion of Liquidation Proceeds and REO Proceeds with
      respect to any Group II Mortgage Loan which represents any unpaid
      Servicing Fee or Master Servicing Fee;

                  (h)   all income from Eligible  Investments  that is held in
      the Certificate Account for the account of the Master Servicer;

                  (i) all other amounts permitted to be withdrawn from the
      Certificate Account in respect of the Group II Mortgage Loans, to the
      extent not covered by clauses (a) through (h) above, or not required to be
      deposited in the Certificate Account under this Agreement;

                  (j)   Group II Net Foreclosure Profits;

                  (k)   Month End Interest in respect of Group II Mortgage
      Loans; and

                  (l) the amount of any Recoveries in respect of principal with
      respect to a Group II Mortgage Loan which had previously been allocated as
      a loss to one or more Classes of the Class A or Class B Certificates
      pursuant to Section 4.02 other than Recoveries with respect to a Group II
      Mortgage Loan that are covered by the last sentence of Section 4.02(d).

            Group II Pool Scheduled Principal Balance: As to any Distribution
Date, the aggregate Scheduled Principal Balances of all Group II Mortgage Loans
that were Outstanding Mortgage Loans on the Due Date in the month preceding the
month of such Distribution Date.

            Group II Subordinate Amount: As to any Distribution Date, the excess
of (i) the Group II Pool Balance (Non-PO Portion) over (ii) the Group II-A
Non-PO Principal Balance.

            Group II Subordinated Percentage: As to any Distribution Date, the
percentage which is the difference between 100% and the Group II-A Percentage
for such date.

            Group II Subordinated Prepayment Percentage: As to any Distribution
Date, the percentage which is the difference between 100% and the Group II-A
Prepayment Percentage for such date.

            Group I-A Certificate: Any Class I-A-1, Class I-A-2, Class I-A-3,
Class I-A-4, Class I-A-5, Class I-A-6, Class I-A-PO or Class I-A-R Certificate.

            Group I-A Distribution Amount: As to any Distribution Date and any
Class of Group I-A Certificates (other than the Class I-A-PO Certificates), the
amount distributable to such Class of Group I-A Certificates pursuant to Clause
(i) Paragraphs first Clause (A), second Clause (A) and third Clause (A)(1) of
Section 4.01(a). As to any Distribution Date and the Class I-A-PO Certificates,
the amount distributable to the Class I-A-PO Certificates pursuant to Clause (i)
Paragraphs third Clause (A)(2) and fourth Clause (A) of Section 4.01(a) on such
Distribution Date.

            Group I-A Interest Accrual Amount: As to any Distribution Date, the
sum of the Interest Accrual Amounts for the Class I-A Certificates with respect
to such Distribution Date.

            Group I-A Interest Percentage: As to any Distribution Date and any
Class of Group I-A Certificates, the percentage calculated by dividing the
Interest Accrual Amount of such Class (determined without regard to clause (ii)
of the definition thereof) by the Group I-A Interest Accrual Amount (determined
without regard to clause (ii) of the definition of each Interest Accrual
Amount).

            Group I-A Interest Shortfall Amount: As to any Distribution Date and
any Class of Group I-A Certificates, any amount by which the Interest Accrual
Amount of such Class with respect to such Distribution Date exceeds the amount
distributed in respect of such Class on such Distribution Date pursuant to
Clause (i) Paragraph first Clause (A) of Section 4.01(a).

            Group I-A Loss Denominator: As to any Determination Date, an amount
equal to the Group I-A Non-PO Principal Balance.

            Group I-A Loss Percentage: As to any Determination Date and any
Class of Group I-A Certificates (other than the Class I-A-PO Certificates), the
percentage calculated by dividing the Principal Balance of such Class by the
Group I-A Loss Denominator (determined without regard to any such Principal
Balance of any Class of Group I-A Certificates not then outstanding), in each
case determined as of the preceding Determination Date.

            Group I-A Non-PO Optimal Amount: As to any Distribution Date, the
sum for such Distribution Date of (i) the Group I-A Interest Accrual Amount,
(ii) the Aggregate Group I-A Unpaid Interest Shortfall and (iii) the Group I-A
Non-PO Optimal Principal Amount.

            Group I-A Non-PO Optimal Principal Amount: As to any Distribution
Date, an amount equal to the sum, as to each Group I Mortgage Loan that is an
Outstanding Mortgage Loan, of the product of (x) the Non-PO Fraction with
respect to such Mortgage Loan, and (y) the sum of:

                  (i) the Group I-A Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

                  (ii) the Group I-A Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

                  (iii) the Group I-A Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

                  (iv) the Group I-A Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Group I-A Non-PO Principal Balance: As of any date, an amount equal
to the Group I-A Principal Balance less the Principal Balance of the Class
I-A-PO Certificates.

            Group I-A Non-PO Principal Distribution Amount: As to any
Distribution Date, the aggregate amount distributed in respect of the Classes of
Group I-A Certificates pursuant to Clause (i) Paragraph third Clause (A)(1) of
Section 4.01(a).

            Group I-A Percentage: As to any Distribution Date occurring on or
prior to the Cross-Over Date, the lesser of (i) 100% and (ii) the percentage
obtained by dividing the Group I-A Non-PO Principal Balance (determined as of
the Determination Date preceding such Distribution Date) by the Group I Pool
Balance (Non-PO Portion). As to any Distribution Date occurring subsequent to
the Cross-Over Date, 100% or such lesser percentage which will cause the Group
I-A Non-PO Principal Balance to decline to zero following the distribution made
on such Distribution Date.

            Group I-A Prepayment Percentage: As to any Distribution Date to and
including the Distribution Date in January 2005, 100%. As to any Distribution
Date subsequent to January 2005 to and including the Distribution Date in
January 2006, the Group I-A Percentage as of such Distribution Date plus 70% of
the Group I Subordinated Percentage as of such Distribution Date. As to any
Distribution Date subsequent to January 2006 to and including the Distribution
Date in January 2007, the Group I-A Percentage as of such Distribution Date plus
60% of the Group I Subordinated Percentage as of such Distribution Date. As to
any Distribution Date subsequent to January 2007 to and including the
Distribution Date in January 2008, the Group I-A Percentage as of such
Distribution Date plus 40% of the Group I Subordinated Percentage as of such
Distribution Date. As to any Distribution Date subsequent to January 2008 to and
including the Distribution Date in January 2009, the Group I-A Percentage as of
such Distribution Date plus 20% of the Group I Subordinated Percentage as of
such Distribution Date. As to any Distribution Date subsequent to January 2009,
the Group I-A Percentage as of such Distribution Date. The foregoing is subject
to the following: (i) if the aggregate distribution to Holders of Group I-A
Certificates on any Distribution Date of the Group I-A Prepayment Percentage
provided above of (a) Unscheduled Principal Receipts distributable on such
Distribution Date would reduce the Group I-A Non-PO Principal Balance below
zero, the Group I-A Prepayment Percentage for such Distribution Date shall be
the percentage necessary to bring the Group I-A Non-PO Principal Balance to zero
and thereafter the Group I-A Prepayment Percentage shall be zero and (ii) if the
Group I-A Percentage or Group II-A Percentage as of any Distribution Date is
greater than the Original Group I-A Percentage or Original Group II-A
Percentage, respectively, the Group I-A Prepayment Percentage for such
Distribution Date shall be 100%. Notwithstanding the foregoing, with respect to
any Distribution Date on which the following criteria are not met, the reduction
of the Group I-A Prepayment Percentage described in the second through sixth
sentences of this definition of Group I-A Prepayment Percentage shall not be
applicable with respect to such Distribution Date. In such event, the Group I-A
Prepayment Percentage for such Distribution Date will be determined in
accordance with the applicable provision, as set forth in the first through
fifth sentences above, which was actually used to determine the Group I-A
Prepayment Percentage for the Distribution Date occurring in the January
preceding such Distribution Date (it being understood that for the purposes of
the determination of the Group I-A Prepayment Percentage for the current
Distribution Date, the current Group I-A Percentage and Group I Subordinated
Percentage shall be utilized). In order for the reduction referred to in the
second through sixth sentences to be applicable, with respect to any
Distribution Date (a) the average outstanding principal balance on such
Distribution Date and for the preceding five Distribution Dates on the Group I
Mortgage Loans or Group II Mortgage Loans that were delinquent 60 days or more
(including for this purpose any payments due with respect to Mortgage Loans in
foreclosure and REO Mortgage Loans) must be less than 50% of the Group I
Subordinate Amount or Group II Subordinate Amount, as applicable and (b)
cumulative Realized Losses on the Group I Mortgage Loans or the Group II
Mortgage Loans shall not exceed (1) 30% of the Original Group I Subordinated
Principal Balance or Original Group II Subordinated Principal Balance, as
applicable, if such Distribution Date occurs between and including February 2005
and January 2006 (2) 35% of the Original Group I Subordinated Principal Balance
or Original Group II Subordinated Principal Balance if such Distribution Date
occurs between and including February 2006 and January 2007, (3) 40% of the
Original Group I Subordinated Principal Balance or Original Group II
Subordinated Principal Balance, as applicable, if such Distribution Date occurs
between and including February 2007 and January 2008, (4) 45% of the Original
Group I Subordinated Principal Balance or Original Group II Subordinated
Principal Balance, as applicable, if such Distribution Date occurs between and
including February 2008 and January 2009, and (5) 50% of the Original Group I
Subordinated Principal Balance or Original Group II Subordinated Principal
Balance, as applicable, if such Distribution Date occurs during or after
February 2009. With respect to any Distribution Date on which the Group I-A
Prepayment Percentage is reduced below the Group I-A Prepayment Percentage for
the prior Distribution Date, the Master Servicer shall certify to the Trustee,
based upon information provided by each Servicer as to the Mortgage Loans
serviced by it that the criteria set forth in the preceding sentence are met.

            Group I-A Principal Balance: As of any date, an amount equal to the
sum of the Principal Balances for the Class I-A-1 Certificates, Class I-A-2
Certificates, Class I-A-3 Certificates, Class I-A-4 Certificates, Class I-A-5
Certificates, Class I-A-6 Certificates, Class I-A-PO Certificates and Class
I-A-R Certificate.

            Group I-A Shortfall Percentage: As to any Distribution Date and any
Class of Group I-A Certificates, the percentage calculated by dividing the Class
A Unpaid Interest Shortfall for such Class by the Aggregate Group I-A Unpaid
Interest Shortfall, in each case determined as of the day preceding the
applicable Distribution Date.

            Group II-A Certificate: Any Class II-A-1, Class II-A-2 or Class
II-A-PO Certificate.

            Group II-A Distribution Amount: As to any Distribution Date and any
Class of Group II-A Certificates (other than the Class II-A-PO Certificates),
the amount distributable to such Class of Group II-A Certificates pursuant to
Clause (i) Paragraphs first Clause (B), second Clause (B) and third Clause
(B)(1) of Section 4.01(a). As to any Distribution Date and the Class II-A-PO
Certificates, the amount distributable to the Class II-A-PO Certificates
pursuant to Clause (i) Paragraphs third Clause (B)(2) and fourth Clause (B) of
Section 4.01(a) on such Distribution Date.

            Group II-A Interest Accrual Amount: As to any Distribution Date, the
sum of the Interest Accrual Amounts for the Classes of Group II-A Certificates
with respect to such Distribution Date.

            Group II-A Interest Percentage: As to any Distribution Date and any
Class of Group II-A Certificates, the percentage calculated by dividing the
Interest Accrual Amount of such Class (determined without regard to clause (ii)
of the definition thereof) by the Group II-A Interest Accrual Amount (determined
without regard to clause (ii) of the definition of each Interest Accrual
Amount).

            Group II-A Interest Shortfall Amount: As to any Distribution Date
and any Class of Group II-A Certificates, any amount by which the Interest
Accrual Amount of such Class with respect to such Distribution Date exceeds the
amount distributed in respect of such Class on such Distribution Date pursuant
to Clause (i) Paragraph first Clause (B) of Section 4.01(a).

            Group II-A Loss Denominator: As to any Determination Date, an amount
equal to the Group II-A Non-PO Principal Balance.

            Group II-A Loss Percentage: As to any Determination Date and any
Class of Group II-A Certificates (other than the Class II-A-PO Certificates),
the percentage calculated by dividing the Principal Balance of such Class by the
Group II-A Loss Denominator (determined without regard to any such Principal
Balance of any Class of Group II-A Certificates not then outstanding), in each
case determined as of the preceding Determination Date.

            Group II-A Non-PO Optimal Amount: As to any Distribution Date, the
sum for such Distribution Date of (i) the Group II-A Interest Accrual Amount,
(ii) the Aggregate Group II-A Unpaid Interest Shortfall and (iii) the Group II-A
Non-PO Optimal Principal Amount.

            Group II-A Non-PO Optimal Principal Amount: As to any Distribution
Date, an amount equal to the sum, as to each Group II Mortgage Loan that is an
Outstanding Mortgage Loan, of the product of (x) the Non-PO Fraction with
respect to such Mortgage Loan, and (y) the sum of:

                  (i) the Group II-A Percentage of (A) the principal portion of
      the Monthly Payment due on the Due Date occurring in the month of such
      Distribution Date on such Mortgage Loan, less (B) if the Bankruptcy Loss
      Amount has been reduced to zero, the principal portion of any Debt Service
      Reduction with respect to such Mortgage Loan;

                  (ii) the Group II-A Prepayment Percentage of all Unscheduled
      Principal Receipts that were received by a Servicer with respect to such
      Mortgage Loan during the Applicable Unscheduled Principal Receipt Period
      relating to such Distribution Date for each applicable type of Unscheduled
      Principal Receipt;

                  (iii) the Group II-A Prepayment Percentage of the Scheduled
      Principal Balance of such Mortgage Loan which, during the month preceding
      the month of such Distribution Date, was repurchased by the Seller
      pursuant to Section 2.02 or 2.03; and

                  (iv) the Group II-A Percentage of the excess of the unpaid
      principal balance of such Mortgage Loan substituted for a defective
      Mortgage Loan during the month preceding the month in which such
      Distribution Date occurs over the unpaid principal balance of such
      defective Mortgage Loan, less the amount allocable to the principal
      portion of any unreimbursed Periodic Advances previously made by the
      applicable Servicer, the Master Servicer or the Trustee in respect of such
      defective Mortgage Loan.

            Group II-A Non-PO Principal Balance: As of any date, an amount equal
to the Group II-A Principal Balance less the Principal Balance of the Class
II-A-PO Certificates.

            Group II-A Non-PO Principal Distribution Amount: As to any
Distribution Date, the aggregate amount distributed in respect of the Classes of
Group II-A Certificates pursuant to Clause (i) Paragraph third Clause (B)(1) of
Section 4.01(a).

            Group II-A Percentage: As to any Distribution Date occurring on or
prior to the Cross-Over Date, the lesser of (i) 100% and (ii) the percentage
obtained by dividing the Group II-A Non-PO Principal Balance (determined as of
the Determination Date preceding such Distribution Date) by the Group II Pool
Balance (Non-PO Portion). As to any Distribution Date occurring subsequent to
the Cross-Over Date, 100% or such lesser percentage which will cause the Group
II-A Non-PO Principal Balance to decline to zero following the distribution made
on such Distribution Date.

            Group II-A Prepayment Percentage: As to any Distribution Date to and
including the Distribution Date in January 2005, 100%. As to any Distribution
Date subsequent to January 2005 to and including the Distribution Date in
January 2006, the Group II-A Percentage as of such Distribution Date plus 70% of
the Group II Subordinated Percentage as of such Distribution Date. As to any
Distribution Date subsequent to January 2006 to and including the Distribution
Date in January 2007, the Group II-A Percentage as of such Distribution Date
plus 60% of the Group II Subordinated Percentage as of such Distribution Date.
As to any Distribution Date subsequent to January 2007 to and including the
Distribution Date in January 2008, the Group II-A Percentage as of such
Distribution Date plus 40% of the Group II Subordinated Percentage as of such
Distribution Date. As to any Distribution Date subsequent to January 2008 to and
including the Distribution Date in January 2009, the Group II-A Percentage as of
such Distribution Date plus 20% of the Group II Subordinated Percentage as of
such Distribution Date. As to any Distribution Date subsequent to January 2009,
the Group II-A Percentage as of such Distribution Date. The foregoing is subject
to the following: (i) if the aggregate distribution to Holders of Group II-A
Certificates on any Distribution Date of the Group II-A Prepayment Percentage
provided above of (a) Unscheduled Principal Receipts distributable on such
Distribution Date would reduce the Group II-A Non-PO Principal Balance below
zero, the Group II-A Prepayment Percentage for such Distribution Date shall be
the percentage necessary to bring the Group II-A Non-PO Principal Balance to
zero and thereafter the Group II-A Prepayment Percentage shall be zero and (ii)
if the Group I-A Percentage or Group II-A Percentage as of any Distribution Date
is greater than the Original Group I-A Percentage or Original Group II-A
Percentage, respectively, the Group II-A Prepayment Percentage for such
Distribution Date shall be 100%. Notwithstanding the foregoing, with respect to
any Distribution Date on which the following criteria are not met, the reduction
of the Group II-A Prepayment Percentage described in the second through sixth
sentences of this definition of Group II-A Prepayment Percentage shall not be
applicable with respect to such Distribution Date. In such event, the Group II-A
Prepayment Percentage for such Distribution Date will be determined in
accordance with the applicable provision, as set forth in the first through
fifth sentences above, which was actually used to determine the Group II-A
Prepayment Percentage for the Distribution Date occurring in the January
preceding such Distribution Date (it being understood that for the purposes of
the determination of the Group II-A Prepayment Percentage for the current
Distribution Date, the current Group II-A Percentage and Group II Subordinated
Percentage shall be utilized). In order for the reduction referred to in the
second through sixth sentences to be applicable, with respect to any
Distribution Date (a) the average outstanding principal balance on such
Distribution Date and for the preceding five Distribution Dates on the Group I
Mortgage Loans or Group II Mortgage Loans that were delinquent 60 days or more
(including for this purpose any payments due with respect to Mortgage Loans in
foreclosure and REO Mortgage Loans) must be less than 50% of the Group I
Subordinate Amount or Group II Subordinate Amount, as applicable and (b)
cumulative Realized Losses on the Group I Mortgage Loans or the Group II
Mortgage Loans shall not exceed (1) 30% of the Original Group I Subordinated
Principal Balance or Original Group II Subordinated Principal Balance, as
applicable, if such Distribution Date occurs between and including February 2005
and January 2006 (2) 35% of the Original Group I Subordinated Principal Balance
or Original Group II Subordinated Principal Balance if such Distribution Date
occurs between and including February 2006 and January 2007, (3) 40% of the
Original Group I Subordinated Principal Balance or Original Group II
Subordinated Principal Balance, as applicable, if such Distribution Date occurs
between and including February 2007 and January 2008, (4) 45% of the Original
Group I Subordinated Principal Balance or Original Group II Subordinated
Principal Balance, as applicable, if such Distribution Date occurs between and
including February 2008 and January 2009, and (5) 50% of the Original Group I
Subordinated Principal Balance or Original Group II Subordinated Principal
Balance, as applicable, if such Distribution Date occurs during or after
February 2009. With respect to any Distribution Date on which the Group II-A
Prepayment Percentage is reduced below the Group II-A Prepayment Percentage for
the prior Distribution Date, the Master Servicer shall certify to the Trustee,
based upon information provided by each Servicer as to the Mortgage Loans
serviced by it that the criteria set forth in the preceding sentence are met.

            Group II-A Principal Balance: As of any date, an amount equal to the
sum of the Principal Balances for the Class II-A-1 Certificates, Class II-A-2
Certificates and Class II-A-PO Certificates.

            Group II-A Shortfall Percentage: As to any Distribution Date and any
Class of Group II-A Certificates, the percentage calculated by dividing the
Class A Unpaid Interest Shortfall for such Class by the Aggregate Group II-A
Unpaid Interest Shortfall, in each case determined as of the day preceding the
applicable Distribution Date.

            Holder: See "Certificateholder."

            Independent: When used with respect to any specified Person, such
Person who (i) is in fact independent of the Seller, the Master Servicer and any
Servicer, (ii) does not have any direct financial interest or any material
indirect financial interest in the Seller or the Master Servicer or any Servicer
or in an affiliate of either, and (iii) is not connected with the Seller, the
Master Servicer or any Servicer as an officer, employee, promoter, underwriter,
trustee, partner, director or person performing similar functions.

            Insurance Policy: Any insurance or performance bond relating to a
Mortgage Loan or the Mortgage Loans, including any hazard insurance, special
hazard insurance, flood insurance, primary mortgage insurance, mortgagor
bankruptcy bond or title insurance.

            Insurance  Proceeds:  Proceeds paid by any insurer pursuant to any
Insurance Policy covering a Mortgage Loan.

            Insured Expenses: Expenses covered by any Insurance Policy covering
a Mortgage Loan.

            Interest Accrual Amount: As to any Distribution Date and any Class
of Class A Certificates (other than the Class I-A-PO and Class II-A-PO
Certificates), (i) the product of (a) 1/12th of the Class A Pass-Through Rate
for such Class and (b) the Principal Balance of such Class as of the
Determination Date preceding such Distribution Date minus (ii) the sum of (A)
the Group I Apportioned Interest Percentage or Group II Apportioned Interest
Percentage, as applicable, of such Class of the interest portion of any Excess
Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses
attributable to Group I Mortgage Loans or Group II Mortgage Loans, respectively,
with respect to such Distribution Date pursuant to Section 4.02(e), (B) the
Group I-A Interest Percentage or Group II-A Interest Percentage of the interest
portion of any Realized Losses (other than Excess Special Hazard Losses, Excess
Fraud Losses and Excess Bankruptcy Losses) allocated to the Group I-A
Certificates or Group II-A Certificates, as applicable, on or after the
Cross-Over Date pursuant to Section 4.02(e) and (C) the Group I-A Interest
Percentage or Group II-A Interest Percentage of such Class of any Non-Supported
Interest Shortfall allocated to the Class A Certificates with respect to such
Distribution Date. The Class I-A-PO and Class II-A-PO Certificates have no
Interest Accrual Amount.

            As to any Distribution Date and any Class of Class B Certificates,
an amount equal to (i) the product of 1/12th of the Class B Pass-Through Rate
and the Principal Balance of such Class as of the Determination Date preceding
such Distribution Date minus (ii) the sum of (A) the Class B Interest Percentage
of such Class of any Non-Supported Interest Shortfall allocated to the Class B
Certificates with respect to such Distribution Date and (B) the Group I
Apportioned Interest Percentage or Group II Apportioned Interest Percentage, as
applicable, of such Class of the interest portion of any Excess Special Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses attributable to the
Group I Mortgage Loans or Group II Mortgage Loans, respectively, with respect to
such Distribution Date pursuant to Section 4.02(e).

            Liquidated Loan: A Mortgage Loan with respect to which the related
Mortgaged Property has been acquired, liquidated or foreclosed and with respect
to which the applicable Servicer determines that all Liquidation Proceeds which
it expects to recover have been recovered.

            Liquidated Loan Loss: With respect to any Distribution Date, the
aggregate of the amount of losses with respect to each Mortgage Loan which
became a Liquidated Loan during the Applicable Unscheduled Principal Receipt
Period with respect to Full Unscheduled Principal Receipts for such Distribution
Date, equal to the excess of (i) the unpaid principal balance of each such
Liquidated Loan, plus accrued interest thereon in accordance with the
amortization schedule at the time applicable thereto at the applicable Net
Mortgage Interest Rate from the Due Date as to which interest was last paid with
respect thereto through the last day of the month preceding the month in which
such Distribution Date occurs, over (ii) Net Liquidation Proceeds with respect
to such Liquidated Loan.

            Liquidation Expenses: Expenses incurred by a Servicer in connection
with the liquidation of any defaulted Mortgage Loan or property acquired in
respect thereof (including, without limitation, legal fees and expenses,
committee or referee fees, and, if applicable, brokerage commissions and
conveyance taxes), any unreimbursed advances expended by such Servicer pursuant
to its Servicing Agreement or the Master Servicer or Trustee pursuant hereto
respecting the related Mortgage Loan, including any unreimbursed advances for
real property taxes or for property restoration or preservation of the related
Mortgaged Property. Liquidation Expenses shall not include any previously
incurred expenses in respect of an REO Mortgage Loan which have been netted
against related REO Proceeds.

            Liquidation Proceeds: Amounts received by a Servicer (including
Insurance Proceeds) in connection with the liquidation of defaulted Mortgage
Loans or property acquired in respect thereof, whether through foreclosure, sale
or otherwise, including payments in connection with such Mortgage Loans received
from the Mortgagor, other than amounts required to be paid to the Mortgagor
pursuant to the terms of the applicable Mortgage or to be applied otherwise
pursuant to law.

            Loan-to-Value Ratio: The ratio, expressed as a percentage, the
numerator of which is the principal balance of a particular Mortgage Loan at
origination and the denominator of which is the lesser of (x) the appraised
value of the related Mortgaged Property determined in the appraisal used by the
originator at the time of origination of such Mortgage Loan, and (y) if the
Mortgage is originated in connection with a sale of the Mortgaged Property, the
sale price for such Mortgaged Property.

            Master Servicer: Norwest Bank Minnesota, National Association, or
its successor in interest.

            Master Servicing Fee: With respect to any Mortgage Loan and any
Distribution Date, the fee payable monthly to the Master Servicer pursuant to
Section 6.05 equal to a fixed percentage (expressed as a per annum rate) of the
unpaid principal balance of such Mortgage Loan.

            Master Servicing Fee Rate: As set forth in Section 11.23.

            MERS:  As defined in Section 2.01.

            Mid-Month Receipt Period: With respect to each Distribution Date,
the one month period beginning on the Determination Date (or, in the case of the
first Distribution Date, from and including the Cut-Off-Date) occurring in the
calendar month preceding the month in which such Distribution Date occurs and
ending on the day preceding the Determination Date immediately preceding such
Distribution Date.

            MLCC Additional Collateral: The Additional Collateral, as defined in
the MLCC Servicing Agreement.

            MLCC Additional Collateral Mortgage Loans: The Additional Collateral
Mortgage Loans, as defined in the MLCC Servicing Agreement.

            MLCC Mortgage Loan Purchase Agreement: The master mortgage loan
purchase agreement dated as of April 1, 1998 between Merrill Lynch Credit
Corporation, as seller, and Norwest Funding, Inc., as purchaser.

            MLCC Servicing Agreement: The Servicing Agreement, dated April 1,
1998 between Merrill Lynch Credit Corporation, as Servicer and Norwest Mortgage,
as owner.

            MLCC Surety Bond: The Surety Bond, as defined in the MLCC Servicing
Agreement.

            Mortgage 100sm Pledge Agreement: As defined in the MLCC Servicing
Agreement.

            Month End Interest: As defined in each Servicing Agreement or with
respect to the MLCC Servicing Agreement, the amount defined as "Compensating
Interest".

            Monthly Payment: As to any Mortgage Loan (including any REO Mortgage
Loan) and any Due Date, the payment of principal and interest due thereon in
accordance with the amortization schedule at the time applicable thereto (after
adjustment for any Curtailments and Deficient Valuations occurring prior to such
Due Date but before any adjustment to such amortization schedule, other than for
Deficient Valuations, by reason of any bankruptcy or similar proceeding or any
moratorium or similar waiver or grace period).

            Month End Interest: As defined in each Servicing Agreement.

            Moody's: Moody's Investors Service, Inc., or its successor in
interest.

            Mortgage: The mortgage, deed of trust or other instrument creating a
first lien on Mortgaged Property securing a Mortgage Note together with any
Mortgage Loan Rider, if applicable.

            Mortgage Interest Rate: As to any Mortgage Loan, the per annum rate
at which interest accrues on the unpaid principal balance thereof as set forth
in the related Mortgage Note, which rate is as indicated on the Mortgage Loan
Schedule.

            Mortgage Loan Purchase Agreement: The mortgage loan purchase
agreement dated as of January 28, 2000 between Norwest Mortgage, as seller, and
the Seller, as purchaser.

            Mortgage Loan Rider: The standard FNMA/FHLMC riders to the Mortgage
Note and/or Mortgage riders required when the Mortgaged Property is a
condominium unit or a unit in a planned unit development.

            Mortgage Loan Schedule: The list of the Mortgage Loans transferred
to the Trustee on the Closing Date as part of the Trust Estate and attached
hereto as Exhibits F-1, F-2A, F-2B and F-3, which list may be amended following
the Closing Date upon conveyance of a Substitute Mortgage Loan pursuant to
Section 2.02 or 2.03 and which list shall set forth at a minimum the following
information of the close of business on the Cut-Off Date (or, with respect to
Substitute Mortgage Loans, as of the close of business on the day of
substitution) as to each Mortgage Loan:

             (i)  the Mortgage Loan identifying number;

            (ii)  the city, state and zip code of the Mortgaged Property;

           (iii)  the type of property;

            (iv)  the Mortgage Interest Rate;

             (v)  the Net Mortgage Interest Rate;

            (vi)  the Monthly Payment;

           (vii)  the original number of months to maturity;

          (viii)  the scheduled maturity date;

            (ix)  the Cut-Off Date Principal Balance;

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

            (xi)  whether such Mortgage Loan is a Subsidy Loan;

           (xii)  whether such  Mortgage  Loan is covered by primary  mortgage
insurance;

          (xiii)  the Servicing Fee Rate;

           (xiv)  the Master Servicing Fee Rate;

            (xv)  Fixed Retained Yield, if applicable; and

            (xvi) for each Exhibit F-3 Mortgage Loan, the name of the Servicer
                  with respect thereto.

            Such schedule may consist of multiple reports that collectively set
forth all of the information required.

            Mortgage Loans: Each of the mortgage loans transferred and assigned
to the Trustee on the Closing Date pursuant to Section 2.01 and any mortgage
loans substituted therefor pursuant to Section 2.02 or 2.03, in each case as
from time to time are included in the Trust Estate as identified in the Mortgage
Loan Schedule.

            Mortgage Note: The note or other evidence of indebtedness evidencing
the indebtedness of a Mortgagor under a Mortgage Loan together with any related
Mortgage Loan Riders, if applicable.

            Mortgaged Property: The property subject to a Mortgage, which may
include Co-op Shares or residential long-term leases.

            Mortgagor: The obligor on a Mortgage Note.

            MSDW Additional Collateral: The Additional Collateral, as defined in
the MSDW Servicing Agreement.

            MSDW Additional Collateral Mortgage Loans: The Additional Collateral
Mortgage Loans, as defined in the MSDW Servicing Agreement.

            MSDW Servicing Agreement: The Servicing Agreement, dated January 29,
1999 between Morgan Stanley Dean Witter (formerly known as NOVUS Financial
Corporation), as servicer and Norwest Mortgage, as owner.

            MSDW Surety Bond: The Surety Bond, as defined in the MSDW Servicing
Agreement.

            Net Liquidation Proceeds: As to any defaulted Mortgage Loan,
Liquidation Proceeds net of Liquidation Expenses.

            Net Mortgage Interest Rate: With respect to each Mortgage Loan, a
rate equal to (i) the Mortgage Interest Rate on such Mortgage Loan minus (ii)
the sum of (a) the Servicing Fee Rate, as set forth in Section 11.22 with
respect to such Mortgage Loan, (b) the Master Servicing Fee Rate, as set forth
in Section 11.23 with respect to such Mortgage Loan and (c) the Fixed Retained
Yield Rate, if any, with respect to such Mortgage Loan. Any regular monthly
computation of interest at such rate shall be based upon annual interest at such
rate on the applicable amount divided by twelve.

            Net REO Proceeds: As to any REO Mortgage Loan, REO Proceeds net of
any related expenses of the Servicer.

            Non-permitted Foreign Holder: As defined in Section 5.02(d).

            Non-PO Fraction: With respect to any Mortgage Loan, the lesser of
(i) 1.00 and (ii) the quotient obtained by dividing the Net Mortgage Interest
Rate for such Mortgage Loan by 7.250%.

            Nonrecoverable Advance: Any portion of a Periodic Advance previously
made or proposed to be made in respect of a Mortgage Loan which has not been
previously reimbursed to the Servicer, the Master Servicer or the Trustee, as
the case may be, and which the Servicer, the Master Servicer or the Trustee
determines will not, or in the case of a proposed Periodic Advance would not, be
ultimately recoverable from Liquidation Proceeds or other recoveries in respect
of the related Mortgage Loan. The determination by the Servicer, the Master
Servicer or the Trustee (i) that it has made a Nonrecoverable Advance or (ii)
that any proposed Periodic Advance, if made, would constitute a Nonrecoverable
Advance, shall be evidenced by an Officer's Certificate of the Servicer
delivered to the Master Servicer for redelivery to the Trustee or, in the case
of a Master Servicer determination, an Officer's Certificate of the Master
Servicer delivered to the Trustee, in each case detailing the reasons for such
determination.

            Non-Supported Interest Shortfall: With respect to any Distribution
Date, the excess, if any, of the aggregate Prepayment Interest Shortfall on the
Mortgage Loans over the aggregate Compensating Interest with respect to such
Distribution Date. With respect to each Distribution Date occurring on or after
the Cross-Over Date, the Non-Supported Interest Shortfall determined pursuant to
the preceding sentence will be increased by the amount of any Cross-Over Date
Interest Shortfall for such Distribution Date. Any Non-Supported Interest
Shortfall will be allocated to (a) the Group I-A Certificates and Group II-A
Certificates according to the percentage obtained by dividing the Group I-A
Non-PO Principal Balance or Group II-A Non-PO Principal Balance, as applicable,
by the Aggregate Non-PO Principal Balance and (b) the Class B Certificates
according to the percentage obtained by dividing the Class B Principal Balance
by the Aggregate Non-PO Principal Balance.

            Non-U.S. Person: As defined in Section 4.01(f).

            Norwest Mortgage: Norwest Mortgage, Inc., or its successor in
interest.

            Norwest Mortgage Correspondents: The entities listed on the Mortgage
Loan Schedule, from which Norwest Mortgage purchased the Mortgage Loans.

            Norwest Servicing Agreement: The Servicing Agreement providing for
the servicing of the Exhibit F-1 Mortgage Loans, Exhibit F-2A Mortgage Loans and
Exhibit F-2B Mortgage Loans initially by Norwest Mortgage.

            Officers' Certificate: With respect to any Person, a certificate
signed by the Chairman of the Board, the President or a Vice President, and by
the Treasurer, the Secretary or one of the Assistant Treasurers or Assistant
Secretaries of such Person (or, in the case of a Person which is not a
corporation, signed by the person or persons having like responsibilities), and
delivered to the Trustee.

            Opinion of Counsel: A written opinion of counsel, who may be outside
or salaried counsel for the Seller, a Servicer or the Master Servicer, or any
affiliate of the Seller, a Servicer or the Master Servicer, acceptable to the
Trustee if such opinion is to be delivered to the Trustee; provided, however,
that with respect to REMIC matters, matters relating to the determination of
Eligible Accounts or matters relating to transfers of Certificates, such counsel
shall be Independent.

            Optimal Adjustment Event: With respect to any Class of Class B
Certificates and any Distribution Date, an Optimal Adjustment Event will occur
with respect to such Class if: (i) the Principal Balance of such Class on the
Determination Date succeeding such Distribution Date would have been reduced to
zero (regardless of whether such Principal Balance was reduced to zero as a
result of principal distribution or the allocation of Realized Losses) and (ii)
(a) the Principal Balance of any Class of Class A Certificates would be subject
to further reduction as a result of the third or sixth sentences of the
definition of Principal Balance or (b) the Principal Balance of a Class of Class
B Certificates with a lower numerical designation would be reduced with respect
to such Distribution Date as a result of the application of clause (ii) of the
definition of Class B-1 Principal Balance, Class B-2 Principal Balance, Class
B-3 Principal Balance, Class B-4 Principal Balance, Class B-5 Principal Balance
or Class B-6 Principal Balance.

            Original Aggregate Non-PO Principal Balance. The Aggregate Non-PO
Principal Balance as of the Cut-Off Date, as set forth in Section 11.07.

            Original Aggregate Subordinate Percentage: The Aggregate Subordinate
Percentage as of the Cut-Off Date, as set forth in Section 11.08.

            Original Group I Subordinated Principal Balance: The aggregate of
the Group I Apportioned Principal Balances of the Class B Certificates as of the
Cut-Off Date, as set forth in Section 11.10.

            Original Group II Subordinated Principal Balance: The aggregate of
the Group II Apportioned Principal Balances of the Class B Certificates as of
the Cut-Off Date, as set forth in Section 11.11.

            Original Group I-A Percentage: The Group I-A Percentage as of the
Cut-Off Date, as set forth in Section 11.03.

            Original Group II-A Percentage: The Group II-A Percentage as of the
Cut-Off Date, as set forth in Section 11.04.

            Original Class B Principal Balance: The sum of the Original Class
B-1 Principal Balance, Original Class B-2 Principal Balance, Original Class B-3
Principal Balance, Original Class B-4 Principal Balance, Original Class B-5
Principal Balance and Original Class B-6 Principal Balance, as set forth in
Section 11.09.

            Original Class B-1 Fractional Interest: As to the first Distribution
Date, the percentage obtained by dividing the sum of the Original Class B-2
Principal Balance, the Original Class B-3 Principal Balance, the Original Class
B-4 Principal Balance, Original Class B-5 Principal Balance and the Original
Class B-6 Principal Balance by the Original Aggregate Non-PO Principal Balance.
The Original Class B-1 Fractional Interest is specified in Section 11.13.

            Original Class B-2 Fractional Interest: As to the first Distribution
Date, the percentage obtained by dividing the sum of the Original Class B-3
Principal Balance, the Original Class B-4 Principal Balance, Original Class B-5
Principal Balance and the Original Class B-6 Principal Balance by the Original
Aggregate Non-PO Principal Balance. The Original Class B-2 Fractional Interest
is specified in Section 11.14.

            Original Class B-3 Fractional Interest: As to the first Distribution
Date, the percentage obtained by dividing the sum of the Original Class B-4
Principal Balance, the Original Class B-5 Principal Balance and the Original
Class B-6 Principal Balance by the Original Aggregate Non-PO Principal Balance.
The Original Class B-3 Fractional Interest is specified in Section 11.15.

            Original Class B-4 Fractional Interest: As to the first Distribution
Date, the percentage obtained by dividing the sum of the Original Class B-5
Principal Balance and the Original Class B-6 Principal Balance by the Original
Aggregate Non-PO Principal Balance. The Original Class B-4 Fractional Interest
is specified in Section 11.16.

            Original Class B-5 Fractional Interest: As to the first Distribution
Date, the percentage obtained by dividing the Original Class B-6 Principal
Balance by the Original Aggregate Non-PO Principal Balance. The Original Class
B-5 Fractional Interest is specified in Section 11.17.

            Original Class B-1 Principal Balance: The Class B-1 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Class B-2 Principal Balance: The Class B-2 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Class B-3 Principal Balance: The Class B-3 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Class B-4 Principal Balance: The Class B-4 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Class B-5 Principal Balance: The Class B-5 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Class B-6 Principal Balance: The Class B-6 Principal
Balance as of the Cut-Off Date, as set forth in Section 11.12.

            Original Principal Balance: Any of the Original Principal Balances
of the Classes of Class A Certificates as set forth in Section 11.05; the
Original Class B-1 Principal Balance, Original Class B-2 Principal Balance,
Original Class B-3 Principal Balance, Original Class B-4 Principal Balance,
Original Class B-5 Principal Balance or Original Class B-6 Principal Balance as
set forth in Section 11.12.

            Other Servicer: Any of the Servicers other than Norwest Mortgage.

            Other Servicing Agreements: The Servicing Agreements other than the
Norwest Servicing Agreement.

            Outstanding Mortgage Loan: As to any Due Date, a Mortgage Loan
(including an REO Mortgage Loan) which was not the subject of a Full Unscheduled
Principal Receipt prior to such Due Date and which was not repurchased by the
Seller prior to such Due Date pursuant to Section 2.02 or 2.03.

            Owner Mortgage Loan File: A file maintained by the Trustee (or the
Custodian, if any) for each Mortgage Loan that contains the documents specified
in the Servicing Agreements or, in the case of each Mortgage Loan serviced by
Bank United or Merrill Lynch Credit Corporation, the documents specified in the
Bank United Mortgage Loan Sale Agreement and the MLCC Mortgage Loan Purchase
Agreement under their respective "Owner Mortgage Loan File" definition or
similar definition and/or other provisions requiring delivery of specified
documents to the owner of the Mortgage Loan in connection with the purchase
thereof, and any additional documents required to be added to the Owner Mortgage
Loan File pursuant to this Agreement.

            Parent Power(R)Guaranty Agreement for Real Estate: As defined in the
MLCC Servicing Agreement.

            Parent Power(R)Guaranty and Security Agreement for Security Account:
As defined in the MLCC Servicing Agreement.

            Partial Liquidation Proceeds: Liquidation Proceeds received by a
Servicer prior to the month in which the related Mortgage Loan became a
Liquidated Loan.

            Partial Unscheduled Principal Receipt: An Unscheduled Principal
Receipt which is not a Full Unscheduled Principal Receipt.

            Paying Agent: The Person authorized on behalf of the Trustee, as
agent for the Master Servicer, to make distributions to Certificateholders with
respect to the Certificates and to forward to Certificateholders the periodic
and annual statements required by Section 4.04. The Paying Agent may be any
Person directly or indirectly controlling or controlled by or under common
control with the Master Servicer and may be the Trustee. The initial Paying
Agent is appointed in Section 4.03(a).

            Payment Account: The account maintained pursuant to Section 4.03(b).

            Percentage Interest: With respect to a Class A Certificate of a
Class, the undivided percentage interest obtained by dividing the original
principal balance of such Certificate by the Original Principal Balance of such
Class of Class A Certificates. With respect to a Class B Certificate of a Class,
the undivided percentage interest obtained by dividing the original principal
balance of such Certificate by the Original Principal Balance of such Class of
Class B Certificates.

            Periodic Advance: The aggregate of the advances required to be made
by a Servicer on any Distribution Date pursuant to its Servicing Agreement or by
the Master Servicer or the Trustee hereunder, the amount of any such advances
being equal to the total of all Monthly Payments (adjusted, in each case (i) in
respect of interest, to the applicable Mortgage Interest Rate less the
applicable Servicing Fee in the case of Periodic Advances made by a Servicer and
to the applicable Net Mortgage Interest Rate in the case of Periodic Advances
made by the Master Servicer or Trustee and (ii) by the amount of any related
Debt Service Reductions or reductions in the amount of interest collectable from
the Mortgagor pursuant to the Soldiers' and Sailors' Civil Relief Act of 1940,
as amended, or similar legislation or regulations then in effect) on the
Mortgage Loans, that (x) were delinquent as of the close of business on the
related Determination Date, (y) were not the subject of a previous Periodic
Advance by such Servicer or of a Periodic Advance by the Master Servicer or the
Trustee, as the case may be and (z) have not been determined by the Master
Servicer, such Servicer or Trustee to be Nonrecoverable Advances.

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

            Plan: As defined in Section 5.02(c).

            PO Fraction: With respect to any Discount Mortgage Loan, the
difference between 1.0 and the Non-PO Fraction for such Mortgage Loan; with
respect to any other Mortgage Loan, zero.

            Pool Scheduled Principal Balance: The sum of the Group I Pool
Scheduled Principal Balance and Group II Pool Scheduled Principal Balance.

            Prepayment In Full: With respect to any Mortgage Loan, a Mortgagor
payment consisting of a Principal Prepayment in the amount of the outstanding
principal balance of such loan and resulting in the full satisfaction of such
obligation.

            Prepayment Interest Shortfall: On any Distribution Date, the amount
of interest, if any, that would have accrued on any Mortgage Loan which was the
subject of a Prepayment in Full at the Net Mortgage Interest Rate for such
Mortgage Loan from the date of its Prepayment in Full (but in the case of a
Prepayment in Full where the Applicable Unscheduled Principal Receipt Period is
the Mid-Month Receipt Period, only if the date of the Prepayment in Full is on
or after the Determination Date in the month prior to the month of such
Distribution Date and prior to the first day of the month of such Distribution
Date) through the last day of the month prior to the month of such Distribution
Date.

            Prepayment Shift Percentage: As to any Distribution Date, the
percentage indicated below:

Distribution Date Occurring In                     Prepayment Shift Percentage
- ------------------------------                     ---------------------------

February 2000 through January 2005...........                     0%
February 2005 through January 2006...........                    30%
February 2006 through January 2007...........                    40%
February 2007 through January 2008...........                    60%
February 2008 through January 2009...........                    80%
February 2009 and thereafter.................                   100%

            Principal Adjustment: In the event that the Class B-1 Optimal
Principal Amount, Class B-2 Optimal Principal Amount, Class B-3 Optimal
Principal Amount, Class B-4 Optimal Principal Amount, Class B-5 Optimal
Principal Amount or Class B-6 Optimal Principal Amount is calculated in
accordance with the proviso in such definition with respect to any Distribution
Date, the Principal Adjustment for such Class of Class B Certificates shall
equal the difference between (i) the amount that would have been distributed to
such Class as principal in accordance with Section 4.01(a) for such Distribution
Date, calculated without regard to such proviso and assuming there are no
Principal Adjustments for such Distribution Date and (ii) the Adjusted Principal
Balance for such Class.

            Principal Balance: As of the first Determination Date and as to any
Class of Class A Certificates, the Original Principal Balance of such Class. As
of any subsequent Determination Date prior to the Cross-Over Date and as to any
Class of Class A Certificates (other than the Class I-A-PO and Class II-A-PO
Certificates), the Original Principal Balance of such Class less the sum of (a)
all amounts previously distributed in respect of such Class on prior
Distribution Dates (i) pursuant to Clause (i) Paragraph third clauses (A)(1) and
(B)(1) of Section 4.01(a), (ii) pursuant to Clause (iii) of Section 4.01(b) and
(iii) as a result of a Principal Adjustment and (b) the Realized Losses
allocated through such Determination Date to such Class pursuant to Section
4.02(b). After the Cross-Over Date, each such Principal Balance will also be
reduced on each Determination Date by an amount equal to the product of the
Group I-A Loss Percentage or Group II-A Loss Percentage, as applicable, of such
Class and the excess, if any, of (i) the Group I Non-PO Principal Balance or
Group II Non-PO Principal Balance, as applicable, as of such Determination Date
without regard to this sentence over (ii) the difference between (A) the Group I
Adjusted Pool Amount or Group II Adjusted Pool Amount, as applicable for the
preceding Distribution Date and (B) the Group I Adjusted Pool Amount (PO
Portion) or Group II Adjusted Pool Amount (PO Portion), as applicable, for the
preceding Distribution Date.

            As of any subsequent Determination Date prior to the Cross-Over Date
and as to the Class I-A-PO and Class II-A-PO Certificates, the Original
Principal Balance of such Class less the sum of (a) all amounts previously
distributed in respect of the Class I-A-PO Certificates on prior Distribution
Dates pursuant to Clause (i) Paragraphs third clause (A)(2) and fourth Clause
(A) of Section 4.01(a) or all amounts previously distributed in respect of the
Class II-A-PO Certificates on prior Distribution Dates pursuant to Clause (i)
Paragraphs third clause (B)(2) and fourth Clause (B) of Section 4.01(a), as
applicable, and (b) the Realized Losses allocated through such Determination
Date to the Class I-A-PO or Class II-A-PO Certificates, as applicable, pursuant
to Section 4.02(b). After the Cross-Over Date, such Principal Balance will also
be reduced on each Determination Date by an amount equal to the difference, if
any, between such Principal Balance as of such Determination Date without regard
to this sentence and the Group I Adjusted Pool Amount (PO Portion) or Group II
Adjusted Pool Amount (PO Portion), as applicable, for the preceding Distribution
Date.

            As to the Class B Certificates, the Class B-1 Principal Balance,
Class B-2 Principal Balance, Class B-3 Principal Balance, Class B-4 Principal
Balance, Class B-5 Principal Balance and Class B-6 Principal Balance,
respectively.

            Principal Prepayment: Any Mortgagor payment on a Mortgage Loan which
is received in advance of its Due Date and is not accompanied by an amount
representing scheduled interest for any period subsequent to the date of
prepayment.

            Prior Month Receipt Period: With respect to each Distribution Date,
the calendar month preceding the month in which such Distribution Date occurs.

            Priority Amount: For any Distribution Date means the lesser of (i)
the Principal Balance of the Class I-A-4 Certificates and (ii) the sum of (A)
the product of (1) the Priority Percentage, (2) the Shift Percentage, and (3)
Group I Scheduled Principal Amount and (B) the product of (1) the Priority
Percentage, (2) the Prepayment Shift Percentage and (3) the Group I Unscheduled
Principal Amount.

            Priority Percentage: The Principal Balance of the Class I-A-4
Certificates divided by the Group I Pool Balance (Non-PO Portion).

            Prohibited Transaction Tax: Any tax imposed under Section 860F of
the Code.

            Prudent Servicing Practices: The standard of care set forth in each
Servicing Agreement.

            Rating Agency: Any nationally recognized statistical credit rating
agency, or its successor, that rated one or more Classes of the Certificates at
the request of the Seller at the time of the initial issuance of the
Certificates. The Rating Agencies for the Class A Certificates (other than the
Class A-R Certificate) are Moody's and Fitch. The Rating Agency for the Class
B-1, Class B-2, Class B-3, Class B-4 and Class B-5 Certificates is Fitch. If any
such agency or a successor is no longer in existence, "Rating Agency" shall be
such statistical credit rating agency, or other comparable Person, designated by
the Seller, notice of which designation shall be given to the Trustee and the
Master Servicer. References herein to the highest short-term rating category of
a Rating Agency shall mean P-1+ in the case of Moody's and F-1+ in the case of
Fitch and in the case of any other Rating Agency shall mean its equivalent of
such ratings. References herein to the highest long-term rating categories of a
Rating Agency shall mean AAA and in the case of any other Rating Agency shall
mean its equivalent of such rating without any plus or minus.

            Realized Losses: With respect to any Distribution Date, (i)
Liquidated Loan Losses (including Special Hazard Losses and Fraud Losses) and
(ii) Bankruptcy Losses incurred in the month preceding the month of such
Distribution Date.

            Record Date: The last Business Day of the month preceding the month
of the related Distribution Date.

            Recovery: Any amount received on a Mortgage Loan subsequent to such
Mortgage Loan being determined to be a Liquidated Loan.

            Relevant Anniversary: See "Bankruptcy Loss Amount."

            REMIC: A "real estate mortgage investment conduit" as defined in
Code Section 860D. "The REMIC" means the REMIC constituted by the Trust Estate.

            REMIC Provisions: Provisions of the federal income tax law relating
to REMICs, which appear at Sections 860A through 860G of Part IV of Subchapter M
of Chapter 1 of Subtitle A of the Code, and related provisions, and U.S.
Department of the Treasury temporary, proposed or final regulations promulgated
thereunder, as the foregoing are in effect (or with respect to proposed
regulations, are proposed to be in effect) from time to time.

            Remittance Date: As defined in each of the Servicing Agreements.

            REO Mortgage Loan: Any Mortgage Loan which is not a Liquidated Loan
and as to which the indebtedness evidenced by the related Mortgage Note is
discharged and the related Mortgaged Property is held as part of the Trust
Estate.

            REO Proceeds: Proceeds received in respect of any REO Mortgage Loan
(including, without limitation, proceeds from the rental of the related
Mortgaged Property).

            Request for Release: A request for release in substantially the form
attached as Exhibit G hereto.

            Responsible Officer: When used with respect to the Trustee, the
Chairman or Vice-Chairman of the Board of Directors or Trustees, the Chairman or
Vice-Chairman of the Executive or Standing Committee of the Board of Directors
or Trustees, the President, the Chairman of the Committee on Trust Matters, any
Vice President, the Secretary, any Assistant Secretary, the Treasurer, any
Assistant Treasurer, the Cashier, any Assistant Cashier, any Trust Officer or
Assistant Trust Officer, the Controller and any Assistant Controller or any
other officer of the Trustee customarily performing functions similar to those
performed by any of the above-designated officers and also, with respect to a
particular matter, any other officer to whom such matter is referred because of
such officer's knowledge of and familiarity with the particular subject.

            Rule 144A: Rule 144A promulgated under the Securities Act of 1933,
as amended.

            Scheduled Principal Balance: As to any Mortgage Loan and
Distribution Date, the principal balance of such Mortgage Loan as of the Due
Date in the month preceding the month of such Distribution Date as specified in
the amortization schedule at the time relating thereto (before any adjustment to
such amortization schedule by reason of any bankruptcy (other than Deficient
Valuations) or similar proceeding or any moratorium or similar waiver or grace
period) after giving effect to (A) Unscheduled Principal Receipts received or
applied by the applicable Servicer during the related Unscheduled Principal
Receipt Period for each applicable type of Unscheduled Principal Receipt related
to the Distribution Date occurring in the month preceding such Distribution
Date, (B) Deficient Valuations incurred prior to such Due Date and (C) the
payment of principal due on such Due Date and irrespective of any delinquency in
payment by the related Mortgagor. Accordingly, the Scheduled Principal Balance
of a Mortgage Loan which becomes a Liquidated Loan at any time through the last
day of such related Unscheduled Principal Receipt Period shall be zero.

            Seller: Norwest Asset Securities Corporation, or its successor in
interest.

            Servicer Mortgage Loan File: As defined in each of the Servicing
Agreements.

            Servicers: Each of Norwest Mortgage, Inc., America First Credit
Union, HomeSide Lending, Bank United, Chase Manhattan Mortgage Corporation,
Morgan Stanley Dean Witter Credit Corporation, SunTrust Mortgage, Inc., Firstar
Bank, NA, FT Mortgage Companies, Keystone Financial Bank (as successor to
Keystone National Bank), The Huntington Mortgage Company and Merrill Lynch
Credit Corporation, as Servicer under the related Servicing Agreement.

            Servicing Agreements: Each of the Servicing Agreements executed with
respect to a portion of the Mortgage Loans by one of the Servicers, which
agreements are attached hereto, collectively, as Exhibit L.

            Servicing Fee: With respect to any Servicer, as defined in its
Servicing Agreement.

            Servicing Fee Rate: With respect to a Mortgage Loan, as set forth in
Section 11.22.

            Servicing Officer: Any officer of a Servicer involved in, or
responsible for, the administration and servicing of the Mortgage Loans.

            Shift Percentage: As to any Distribution Date, the percentage

Distribution Date Occurring In                           Shift Percentage
- ------------------------------                           ----------------

February 2000 through January 2005...................            0%
February 2005 and thereafter.........................          100%


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

            Single Certificate: A Certificate of any Class that evidences the
smallest permissible Denomination for such Class, as set forth in Section 11.21.

            Special Hazard Loss: (i) A Liquidated Loan Loss suffered by a
Mortgaged Property on account of direct physical loss, exclusive of (a) any loss
covered by a hazard policy or a flood insurance policy maintained in respect of
such Mortgaged Property pursuant to a Servicing Agreement and (b) any loss
caused by or resulting from:

            (1)   normal wear and tear;

            (2)   infidelity, conversion or other dishonest act on the part of
                  the Trustee or the Servicer or any of their agents or
                  employees; or

            (3)   errors in design, faulty workmanship or faulty materials,
                  unless the collapse of the property or a part thereof ensues;

or (ii) any Liquidated Loan Loss suffered by the Trust Estate arising from or
related to the presence or suspected presence of hazardous wastes or hazardous
substances on a Mortgaged Property unless such loss to a Mortgaged Property is
covered by a hazard policy or a flood insurance policy maintained in respect of
such Mortgaged Property pursuant to the Servicing Agreement.

            Special Hazard Loss Amount: As of any Distribution Date, an amount
equal to $2,006,284.54 minus the sum of (i) the aggregate amount of Special
Hazard Losses allocated solely to the Class B Certificates in accordance with
Section 4.02(a) and (ii) the Special Hazard Adjustment Amount (as defined below)
as most recently calculated. For each anniversary of the Cut-Off Date, the
Special Hazard Adjustment Amount shall be calculated and shall be equal to the
amount, if any, by which the amount calculated in accordance with the preceding
sentence (without giving effect to the deduction of the Special Hazard
Adjustment Amount for such anniversary) exceeds the greater of (A) the product
of the Special Hazard Percentage for such anniversary multiplied by the
outstanding principal balance of all the Mortgage Loans on the Distribution Date
immediately preceding such anniversary, (B) twice the outstanding principal
balance of the Mortgage Loan in the Trust Estate which has the largest
outstanding principal balance on the Distribution Date immediately preceding
such anniversary and (C) that which is necessary to maintain the original
ratings on the Certificates as evidenced by letters to that effect delivered by
Rating Agencies to the Master Servicer and the Trustee. On and or after the
Cross-Over Date, the Special Hazard Loss Amount shall be zero.

            Special Hazard Percentage: As of each anniversary of the Cut-Off
Date, the greater of (i) 1.00% and (ii) the largest percentage obtained by
dividing the aggregate outstanding principal balance (as of the immediately
preceding Distribution Date) of the Mortgage Loans secured by Mortgaged
Properties located in a single, five-digit zip code area in the State of
California by the outstanding principal balance of all the Mortgage Loans as of
the immediately preceding Distribution Date.

            Startup Day: As defined in Section 2.05.

            Subsidy Loan: Any Mortgage Loan subject to a temporary interest
subsidy agreement pursuant to which the monthly interest payments made by the
related Mortgagor will be less than the scheduled monthly interest payments on
such Mortgage Loan, with the resulting difference in interest payments being
provided by the employer of the Mortgagor. Each Subsidy Loan will be identified
as such in the Mortgage Loan Schedule.

            Substitute Mortgage Loan: As defined in Section 2.02

            Substitution Principal Amount: With respect to any Mortgage Loan
substituted in accordance with Section 2.02 or pursuant to Section 2.03, the
excess of (x) the unpaid principal balance of the Mortgage Loan which is
substituted for over (y) the unpaid principal balance of the Substitute Mortgage
Loan, each balance being determined as of the date of substitution.

            Trust Estate: The corpus of the trust created by this Agreement,
consisting of the Mortgage Loans (other than any Fixed Retained Yield), such
amounts as may be held from time to time in the Certificate Account (other than
any Fixed Retained Yield), the rights of the Trustee to receive the proceeds of
all insurance policies and performance bonds, if any, required to be maintained
hereunder or under the related Servicing Agreement and property which secured a
Mortgage Loan and which has been acquired by foreclosure or deed in lieu of
foreclosure.

            Trustee: First Union National Bank, a national banking association
with its principal office located in Charlotte, North Carolina, or any successor
trustee appointed as herein provided.

            Unpaid Interest Shortfalls: Each of the Class A Unpaid Interest
Shortfalls, the Class B-1 Unpaid Interest Shortfall, the Class B-2 Unpaid
Interest Shortfall, the Class B-3 Unpaid Interest Shortfall, the Class B-4
Unpaid Interest Shortfall, the Class B-5 Unpaid Interest Shortfall and the Class
B-6 Unpaid Interest Shortfall.

            Unscheduled Principal Receipt: Any Principal Prepayment or other
recovery of principal on a Mortgage Loan, including, without limitation,
Liquidation Proceeds, Net REO Proceeds and proceeds received from any
condemnation award or proceeds in lieu of condemnation other than that portion
of such proceeds released to the Mortgagor in accordance with the terms of the
Mortgage or Prudent Servicing Practices, but excluding any Net Foreclosure
Profits and proceeds of a repurchase of a Mortgage Loan by the Seller and any
Substitution Principal Amounts. Except as set forth in the last sentence of
Section 4.02(d), a Recovery shall not be treated as an Unscheduled Principal
Receipt.

            Unscheduled Principal Receipt Period: Either a Mid-Month Receipt
Period or a Prior Month Receipt Period.

            U.S. Person: As defined in Section 4.01(f).

            Voting Interest: With respect to any provisions hereof providing for
the action, consent or approval of the Holders of all Certificates evidencing
specified Voting Interests in the Trust Estate, the Holders of each Class of
Certificates will collectively be entitled to the then applicable percentage of
the aggregate Voting Interest represented by all Certificates equal to the ratio
obtained by dividing the Principal Balance of such Class by the sum of the Group
I-A Principal Balance, the Group II-A Principal Balance and the Class B
Principal Balance. Each Certificateholder of a Class will have a Voting Interest
equal to the product of the Voting Interest to which such Class is collectively
entitled and the Percentage Interest in such Class represented by such Holder's
Certificates. With respect to any provisions hereof providing for action,
consent or approval of each Class of Certificates or specified Classes of
Certificates, each Certificateholder of a Class will have a Voting Interest in
such Class equal to such Holder's Percentage Interest in such Class.

            Weighted Average Net Mortgage Interest Rate: As to any Distribution
Date, a rate per annum equal to the average, expressed as a percentage of the
Net Mortgage Interest Rates of all Mortgage Loans that were Outstanding Mortgage
Loans as of the Due Date in the month preceding the month of such Distribution
Date, weighted on the basis of the respective Scheduled Principal Balances of
such Mortgage Loans.

            SECTION 1.02      ACTS OF HOLDERS.

            (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Agreement to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing. Except as herein otherwise expressly provided, such action
shall become effective when such instrument or instruments are delivered to the
Trustee. Proof of execution of any such instrument or of a writing appointing
any such agent shall be sufficient for any purpose of this Agreement and
conclusive in favor of the Trustee, if made in the manner provided in this
Section 1.02. The Trustee shall promptly notify the Master Servicer in writing
of the receipt of any such instrument or writing.

            (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. When such
execution is by a signer acting in a capacity other than his or her individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his or her authority. The fact and date of the execution of any such
instrument or writing, or the authority of the individual executing the same,
may also be proved in any other manner which the Trustee deems sufficient.

            (c) The ownership of Certificates (whether or not such Certificates
shall be overdue and notwithstanding any notation of ownership or other writing
thereon made by anyone other than the Trustee and the Authenticating Agent)
shall be proved by the Certificate Register, and neither the Trustee, the Seller
nor the Master Servicer shall be affected by any notice to the contrary.

            (d) Any request, demand, authorization, direction, notice, consent,
waiver or other action of the Holder of any Certificate shall bind every future
Holder of the same Certificate and the Holder of every Certificate issued upon
the registration of transfer thereof or in exchange therefor or in lieu thereof
in respect of anything done, omitted or suffered to be done by the Trustee, the
Seller or the Master Servicer in reliance thereon, whether or not notation of
such action is made upon such Certificate.

            SECTION 1.03      EFFECT OF HEADINGS AND TABLE OF CONTENTS.

            The Article and Section headings in this Agreement and the Table of
Contents are for convenience of reference only and shall not affect the
interpretation or construction of this Agreement.

            SECTION 1.04      BENEFITS OF AGREEMENT.

            Nothing in this Agreement or in the Certificates, express or
implied, shall give to any Person, other than the parties to this Agreement and
their successors hereunder and the Holders of the Certificates any benefit or
any legal or equitable right, power, remedy or claim under this Agreement.


<PAGE>


                                   ARTICLE II

                          CONVEYANCE OF MORTGAGE LOANS;
                      ORIGINAL ISSUANCE OF THE CERTIFICATES

            SECTION 2.01      CONVEYANCE OF MORTGAGE LOANS.

            The Seller, concurrently with the execution and delivery hereof,
does hereby assign to the Trustee, without recourse all the right, title and
interest of the Seller in and to (a) the Trust Estate, including all interest
(other than the portion, if any, representing the Fixed Retained Yield) and
principal received by the Seller on or with respect to the Mortgage Loans after
the Cut-Off Date (and including scheduled payments of principal and interest due
after the Cut-Off Date but received by the Seller on or before the Cut-Off Date
and Unscheduled Principal Receipts received or applied on the Cut-Off Date, but
not including payments of principal and interest due on the Mortgage Loans on or
before the Cut-Off Date), (b) the Insurance Policies, (c) the obligations of the
Servicers under the Servicing Agreements with respect to the Mortgage Loans, (d)
all of the Seller's right, title and interest in and to each Mortgage 100SM
Pledge Agreement, each Parent Power(R) Guaranty and Security Agreement for
Securities Account and each Parent Power(R) Guaranty Agreement for Real Estate
with respect to each MLCC Additional Collateral Mortgage Loan, (e) all of the
Seller's right, title and interest in and to each Dual Collateral Pledge
Agreement with respect to each MSDW Additional Collateral Mortgage Loan and (f)
proceeds of all the foregoing.

            In connection with such assignment, the Seller shall, with respect
to each Mortgage Loan, deliver, or cause to be delivered, to the Trustee, as
initial Custodian, on or before the Closing Date, an Owner Mortgage Loan File.
If any Mortgage or an assignment of a Mortgage to the Trustee or any prior
assignment is in the process of being recorded on the Closing Date, the Seller
shall deliver a copy thereof, certified by Norwest Mortgage or the applicable
Norwest Mortgage Correspondent to be a true and complete copy of the document
sent for recording, and the Seller shall use its best efforts to cause each such
original recorded document or certified copy thereof to be delivered to the
Trustee promptly following its recordation, but in no event later than one (1)
year following the Closing Date. 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 Master Servicer shall take all actions as are
necessary to cause the Trust Estate 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. The Seller
shall also cause to be delivered to the Trustee any other original mortgage loan
document to be included in the Owner Mortgage Loan File if a copy thereof has
been delivered. The Seller shall pay from its own funds, without any right of
reimbursement therefor, the amount of any costs, liabilities and expenses
incurred by the Trust Estate by reason of the failure of the Seller to cause to
be delivered to the Trustee within one (1) year following the Closing Date any
original Mortgage or assignment of a Mortgage (except with respect to any
Mortgage recorded in the name of MERS) not delivered to the Trustee on the
Closing Date.

            In lieu of recording an assignment of any Mortgage the Seller may,
to the extent set forth in the applicable Servicing Agreement, deliver or cause
to be delivered to the Trustee the assignment of the Mortgage Loan from the
Seller to the Trustee in a form suitable for recordation, in the states as to
which the Trustee has received an Opinion of Counsel acceptable to it that such
recording is not required to make an assignment effective against the parties to
the Mortgage or subsequent purchasers or encumbrancers of the Mortgaged
Property. In the event that the Master Servicer receives notice that recording
is required to protect the right, title and interest of the Trustee in and to
any such Mortgage Loan for which recordation of an assignment has not previously
been required, the Master Servicer shall promptly notify the Trustee and the
Trustee shall within five Business Days (or such other reasonable period of time
mutually agreed upon by the Master Servicer and the Trustee) of its receipt of
such notice deliver each previously unrecorded assignment to the related
Servicer for recordation.

            SECTION 2.02      ACCEPTANCE BY TRUSTEE.

            The Trustee acknowledges receipt of the Mortgage Notes, the
Mortgages, the assignments (unless the related Mortgage has been registered in
the name of MERS or its designee) and other documents required to be delivered
on the Closing Date pursuant to Section 2.01 above and declares that it holds
and will hold such documents and the other documents constituting a part of the
Owner Mortgage Loan Files delivered to it in trust, upon the trusts herein set
forth, for the use and benefit of all present and future Certificateholders. The
Trustee agrees, for the benefit of Certificateholders, to review each Owner
Mortgage Loan File within 45 days after execution of this Agreement in order to
ascertain that all required documents set forth in Section 2.01 have been
executed and received and appear regular on their face, and that such documents
relate to the Mortgage Loans identified in the Mortgage Loan Schedule, and in so
doing the Trustee may rely on the purported due execution and genuineness of any
such document and on the purported genuineness of any signature thereon. If
within such 45 day period the Trustee finds any document constituting a part of
an Owner Mortgage Loan File not to have been executed or received or to be
unrelated to the Mortgage Loans identified in the Mortgage Loan Schedule or not
to appear regular on its face, the Trustee shall promptly (and in no event more
than 30 days after the discovery of such defect) notify the Seller, which shall
have a period of 60 days after the date of such notice within which to correct
or cure any such defect. The Seller hereby covenants and agrees that, if any
material defect is not so corrected or cured, the Seller will, not later than 60
days after the Trustee's notice to it referred to above respecting such defect,
either (i) repurchase the related Mortgage Loan or any property acquired in
respect thereof from the Trust Estate at a price equal to (a) 100% of the unpaid
principal balance of such Mortgage Loan plus (b) accrued interest at the
Mortgage Interest Rate less any Fixed Retained Yield through the last day of the
month in which such repurchase takes place or (ii) if within two years of the
Startup Day, or such other period permitted by the REMIC Provisions, substitute
for any Mortgage Loan to which such material defect relates, a new mortgage loan
(a "Substitute Mortgage Loan") having such characteristics so that the
representations and warranties of the Seller set forth in Section 2.03(b) hereof
(other than Section 2.03(b)(i)) would not have been incorrect had such
Substitute Mortgage Loan originally been a Mortgage Loan. In no event shall any
Substitute Mortgage Loan have an unpaid principal balance, as of the date of
substitution, greater than the Scheduled Principal Balance (reduced by the
scheduled payment of principal due on the Due Date in the month of substitution)
of the Mortgage Loan for which it is substituted. In addition, such Substitute
Mortgage Loan shall have a Loan-to-Value Ratio less than or equal to and a
Mortgage Interest Rate equal to that of the Mortgage Loan for which it is
substituted.

            In the case of a repurchased Mortgage Loan or property, the purchase
price shall be deposited by the Seller in the Certificate Account maintained by
the Master Servicer pursuant to Section 3.01. In the case of a Substitute
Mortgage Loan, the Owner Mortgage Loan File relating thereto shall be delivered
to the Trustee and the Substitution Principal Amount, together with (i) interest
on such Substitution Principal Amount at the applicable Net Mortgage Interest
Rate to the following Due Date of such Mortgage Loan which is being substituted
for and (ii) an amount equal to the aggregate amount of unreimbursed Periodic
Advances in respect of interest previously made by the Servicer, the Master
Servicer or the Trustee with respect to such Mortgage Loan, shall be deposited
in the Certificate Account. The Monthly Payment on the Substitute Mortgage Loan
for the Due Date in the month of substitution shall not be part of the Trust
Estate. Upon receipt by the Trustee of written notification of any such deposit
signed by an officer of the Seller, or the new Owner Mortgage Loan File, as the
case may be, the Trustee shall release to the Seller the related Owner Mortgage
Loan File and shall execute and deliver such instrument of transfer or
assignment (or, in the case of a Mortgage Loan registered in the name of MERS or
its designee, the Master Servicer shall take all necessary action to reflect
such assignment on the records of MERS), in each case without recourse, as shall
be necessary to vest in the Seller legal and beneficial ownership of such
substituted or repurchased Mortgage Loan or property. It is understood and
agreed that the obligation of the Seller to substitute a new Mortgage Loan for
or repurchase any Mortgage Loan or property as to which such a material defect
in a constituent document exists shall constitute the sole remedy respecting
such defect available to the Certificateholders or the Trustee on behalf of the
Certificateholders. The failure of the Trustee to give any notice contemplated
herein within forty-five (45) days after the execution of this Agreement shall
not affect or relieve the Seller's obligation to repurchase any Mortgage Loan
pursuant to this Section 2.02.

            The Trustee may, concurrently with the execution and delivery hereof
or at any time thereafter, enter into a Custodial Agreement substantially in the
form of Exhibit E hereto pursuant to which the Trustee appoints a Custodian to
hold the Mortgage Notes, the Mortgages, the assignments and other documents
related to the Mortgage Loans received by the Trustee in trust for the benefit
of all present and future Certificateholders, which may provide, among other
things, that the Custodian shall conduct the review of such documents required
under the first paragraph of this Section 2.02.

            SECTION 2.03      REPRESENTATIONS AND WARRANTIES OF THE MASTER
                              SERVICER AND THE SELLER.

            (a) The Master Servicer hereby represents and warrants to the
Trustee for the benefit of Certificateholders that, as of the date of execution
of this Agreement:

               (i)The Master Servicer is a national banking association duly
      chartered and validly existing in good standing under the laws of the
      United States;

               (ii) The execution and delivery of this Agreement by the Master
      Servicer and its performance and compliance with the terms of this
      Agreement will not violate the Master Servicer's corporate charter or
      by-laws or constitute a default (or an event which, with notice or lapse
      of time, or both, would constitute a default) under, or result in the
      breach of, any material contract, agreement or other instrument to which
      the Master Servicer is a party or which may be applicable to the Master
      Servicer or any of its assets;

               (iii) This Agreement, assuming due authorization, execution and
      delivery by the Trustee and the Seller, constitutes a valid, legal and
      binding obligation of the Master Servicer, enforceable against it in
      accordance with the terms hereof subject to applicable bankruptcy,
      insolvency, reorganization, moratorium and other laws affecting the
      enforcement of creditors' rights generally and to general principles of
      equity, regardless of whether such enforcement is considered in a
      proceeding in equity or at law;

               (iv) The Master Servicer 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, which default might have
      consequences that would materially and adversely affect the condition
      (financial or other) or operations of the Master Servicer or its
      properties or might have consequences that would affect its performance
      hereunder; and

            (v) No litigation is pending or, to the best of the Master
Servicer's knowledge, threatened against the Master Servicer which would
prohibit its entering into this Agreement or performing its obligations under
this Agreement.

            It is understood and agreed that the representations and warranties
set forth in this Section 2.03(a) shall survive delivery of the respective Owner
Mortgage Loan Files to the Trustee or the Custodian.

            (b) The Seller hereby represents and warrants to the Trustee for the
benefit of Certificateholders that, as of the date of execution of this
Agreement, with respect to the Mortgage Loans, or each Mortgage Loan, as the
case may be:

               (i)The information set forth in the Mortgage Loan Schedule was
      true and correct in all material respects at the date or dates respecting
      which such information is furnished as specified in the Mortgage Loan
      Schedule;

               (ii) Immediately prior to the transfer and assignment
      contemplated herein, the Seller was the sole owner and holder of the
      Mortgage Loan free and clear of any and all liens, pledges, charges or
      security interests of any nature and has full right and authority to sell
      and assign the same;

               (iii) The Mortgage is a valid, subsisting and enforceable first
      lien on the property therein described, and the Mortgaged Property is free
      and clear of all encumbrances and liens having priority over the first
      lien of the Mortgage except for liens for real estate taxes and special
      assessments not yet due and payable and liens or interests arising under
      or as a result of any federal, state or local law, regulation or ordinance
      relating to hazardous wastes or hazardous substances, and, if the related
      Mortgaged Property is a condominium unit, any lien for common charges
      permitted by statute or homeowners association fees; and if the Mortgaged
      Property consists of shares of a cooperative housing corporation, any lien
      for amounts due to the cooperative housing corporation for unpaid
      assessments or charges or any lien of any assignment of rents or
      maintenance expenses secured by the real property owned by the cooperative
      housing corporation; and any security agreement, chattel mortgage or
      equivalent document related to, and delivered to the Trustee or to the
      Custodian with, any Mortgage establishes in the Seller a valid and
      subsisting first lien on the property described therein and the Seller has
      full right to sell and assign the same to the Trustee;

               (iv) Neither the Seller nor any prior holder of the Mortgage or
      the related Mortgage Note has modified the Mortgage or the related
      Mortgage Note in any material respect, satisfied, canceled or subordinated
      the Mortgage in whole or in part, released the Mortgaged Property in whole
      or in part from the lien of the Mortgage, or executed any instrument of
      release, cancellation, modification or satisfaction, except in each case
      as is reflected in an agreement delivered to the Trustee or the Custodian
      pursuant to Section 2.01;

               (v)All taxes, governmental assessments, insurance premiums, and
      water, sewer and municipal charges, which previously became due and owing
      have been paid, or an escrow of funds has been established, to the extent
      permitted by law, in an amount sufficient to pay for every such item which
      remains unpaid; and the Seller has not advanced funds, or received any
      advance of funds by a party other than the Mortgagor, directly or
      indirectly (except pursuant to any Subsidy Loan arrangement) for the
      payment of any amount required by the Mortgage, except for interest
      accruing from the date of the Mortgage Note or date of disbursement of the
      Mortgage Loan proceeds, whichever is later, to the day which precedes by
      thirty days the first Due Date under the related Mortgage Note;

               (vi) The Mortgaged Property is undamaged by water, fire,
      earthquake, earth movement other than earthquake, windstorm, flood,
      tornado or similar casualty (excluding casualty from the presence of
      hazardous wastes or hazardous substances, as to which the Seller makes no
      representations), so as to affect adversely the value of the Mortgaged
      Property as security for the Mortgage Loan or the use for which the
      premises were intended and to the best of the Seller's knowledge, there is
      no proceeding pending or threatened for the total or partial condemnation
      of the Mortgaged Property;

               (vii) The Mortgaged Property is free and clear of all mechanics'
      and materialmen's liens or liens in the nature thereof; provided, however,
      that this warranty shall be deemed not to have been made at the time of
      the initial issuance of the Certificates if a title policy affording, in
      substance, the same protection afforded by this warranty is furnished to
      the Trustee by the Seller;

               (viii) Except for Mortgage Loans secured by Co-op Shares and
      Mortgage Loans secured by residential long-term leases, the Mortgaged
      Property consists of a fee simple estate in real property; all of the
      improvements which are included for the purpose of determining the
      appraised value of the Mortgaged Property lie wholly within the boundaries
      and building restriction lines of such property and no improvements on
      adjoining properties encroach upon the Mortgaged Property (unless insured
      against under the related title insurance policy); and to the best of the
      Seller's knowledge, the Mortgaged Property and all improvements thereon
      comply with all requirements of any applicable zoning and subdivision laws
      and ordinances;

               (ix) The Mortgage Loan meets, or is exempt from, applicable state
      or federal laws, regulations and other requirements, pertaining to usury,
      and the Mortgage Loan is not usurious;

               (x)To the best of the Seller's knowledge, all inspections,
      licenses and certificates required to be made or issued with respect to
      all occupied portions of the Mortgaged Property and, with respect to the
      use and occupancy of the same, including, but not limited to, certificates
      of occupancy and fire underwriting certificates, have been made or
      obtained from the appropriate authorities;

               (xi) All payments required to be made up to the Due Date
      immediately preceding the Cut-Off Date for such Mortgage Loan under the
      terms of the related Mortgage Note have been made and no Mortgage Loan had
      more than one delinquency in the 12 months preceding the Cut-Off Date;

               (xii) The Mortgage Note, the related Mortgage and other
      agreements executed in connection therewith are genuine, and each is the
      legal, valid and binding obligation of the maker thereof, enforceable in
      accordance with its terms, except as such enforcement may be limited by
      bankruptcy, insolvency, reorganization or other similar laws affecting the
      enforcement of creditors' rights generally and by general equity
      principles (regardless of whether such enforcement is considered in a
      proceeding in equity or at law); and, to the best of the Seller's
      knowledge, all parties to the Mortgage Note and the Mortgage had legal
      capacity to execute the Mortgage Note and the Mortgage and each Mortgage
      Note and Mortgage has been duly and properly executed by the Mortgagor;

               (xiii) Any and all requirements of any federal, state or local
      law with respect to the origination of the Mortgage Loans including,
      without limitation, truth-in-lending, real estate settlement procedures,
      consumer credit protection, equal credit opportunity or disclosure laws
      applicable to the Mortgage Loans have been complied with;

               (xiv) The proceeds of the Mortgage Loans have been fully
      disbursed, there is no requirement for future advances thereunder and any
      and all requirements as to completion of any on-site or off-site
      improvements and as to disbursements of any escrow funds therefor have
      been complied with (except for escrow funds for exterior items which could
      not be completed due to weather and escrow funds for the completion of
      swimming pools); and all costs, fees and expenses incurred in making,
      closing or recording the Mortgage Loan have been paid, except recording
      fees with respect to Mortgages not recorded as of the Closing Date;

               (xv) The Mortgage Loan (except any Mortgage Loan secured by a
      Mortgaged Property located in any jurisdiction, as to which an opinion of
      counsel of the type customarily rendered in such jurisdiction in lieu of
      title insurance is instead received) is covered by an American Land Title
      Association mortgagee title insurance policy or other generally acceptable
      form of policy or insurance acceptable to FNMA or FHLMC, issued by a title
      insurer acceptable to FNMA or FHLMC insuring the originator, its
      successors and assigns, as to the first priority lien of the Mortgage in
      the original principal amount of the Mortgage Loan and subject only to (A)
      the lien of current real property taxes and assessments not yet due and
      payable, (B) covenants, conditions and restrictions, rights of way,
      easements and other matters of public record as of the date of recording
      of such Mortgage acceptable to mortgage lending institutions in the area
      in which the Mortgaged Property is located or specifically referred to in
      the appraisal performed in connection with the origination of the related
      Mortgage Loan, (C) liens created pursuant to any federal, state or local
      law, regulation or ordinance affording liens for the costs of clean-up of
      hazardous substances or hazardous wastes or for other environmental
      protection purposes and (D) such other matters to which like properties
      are commonly subject which do not individually, or in the aggregate,
      materially interfere with the benefits of the security intended to be
      provided by the Mortgage; the Seller is the sole insured of such mortgagee
      title insurance policy, the assignment to the Trustee of the Seller's
      interest in such mortgagee title insurance policy does not require any
      consent of or notification to the insurer which has not been obtained or
      made, such mortgagee title insurance policy is in full force and effect
      and will be in full force and effect and inure to the benefit of the
      Trustee, no claims have been made under such mortgagee title insurance
      policy, and no prior holder of the related Mortgage, including the Seller,
      has done, by act or omission, anything which would impair the coverage of
      such mortgagee title insurance policy;

               (xvi) The Mortgaged Property securing each Mortgage Loan is
      insured by an insurer acceptable to FNMA or FHLMC against loss by fire and
      such hazards as are covered under a standard extended coverage
      endorsement, in an amount which is not less than the lesser of 100% of the
      insurable value of the Mortgaged Property and the outstanding principal
      balance of the Mortgage Loan, but in no event less than the minimum amount
      necessary to fully compensate for any damage or loss on a replacement cost
      basis; if the Mortgaged Property is a condominium unit, it is included
      under the coverage afforded by a blanket policy for the project; if upon
      origination of the Mortgage Loan, the improvements on the Mortgaged
      Property were in an area identified in the Federal Register by the Federal
      Emergency Management Agency as having special flood hazards, a flood
      insurance policy meeting the requirements of the current guidelines of the
      Federal Insurance Administration is in effect with a generally acceptable
      insurance carrier, in an amount representing coverage not less than the
      least of (A) the outstanding principal balance of the Mortgage Loan, (B)
      the full insurable value of the Mortgaged Property and (C) the maximum
      amount of insurance which was available under the National Flood Insurance
      Act of 1968, as amended; and each Mortgage obligates the Mortgagor
      thereunder to maintain all such insurance at the Mortgagor's cost and
      expense;

               (xvii) To the best of the Seller's knowledge, there is no
      default, breach, violation or event of acceleration existing under the
      Mortgage or the related Mortgage Note and no event which, with the passage
      of time or with notice and the expiration of any grace or cure period,
      would constitute a default, breach, violation or event of acceleration;
      the Seller has not waived any default, breach, violation or event of
      acceleration; and no foreclosure action is currently threatened or has
      been commenced with respect to the Mortgage Loan;

               (xviii) No Mortgage Note or Mortgage is subject to any right of
      rescission, set-off, counterclaim or defense, including the defense of
      usury, nor will the operation of any of the terms of the Mortgage Note or
      Mortgage, or the exercise of any right thereunder, render the Mortgage
      Note or Mortgage unenforceable, in whole or in part, or subject it to any
      right of rescission, set-off, counterclaim or defense, including the
      defense of usury, and no such right of rescission, set-off, counterclaim
      or defense has been asserted with respect thereto;

               (xix) Each Mortgage Note is payable in monthly payments,
      resulting in complete amortization of the Mortgage Loan over a term of not
      more than 360 months;

               (xx) Each Mortgage contains customary and enforceable provisions
      such as to render the rights and remedies of the holder thereof adequate
      for the realization against the Mortgaged Property of the benefits of the
      security, including realization by judicial foreclosure (subject to any
      limitation arising from any bankruptcy, insolvency or other law for the
      relief of debtors), and there is no homestead or other exemption available
      to the Mortgagor which would interfere with such right of foreclosure;

               (xxi)    To the best of the  Seller's  knowledge,  no Mortgagor
      is a debtor in any state or federal bankruptcy or insolvency proceeding;

               (xxii) Each Mortgaged Property is located in the United States
      and consists of a one- to four-unit residential property, which may
      include a detached home, townhouse, condominium unit or a unit in a
      planned unit development or, in the case of Mortgage Loans secured by
      Co-op Shares, leases or occupancy agreements;

               (xxiii)  The  Mortgage  Loan is a "qualified  mortgage"  within
      the meaning of Section 860G(a)(3) of the Code;

               (xxiv) With respect to each Mortgage where a lost note affidavit
      has been delivered to the Trustee in place of the related Mortgage Note,
      the related Mortgage Note is no longer in existence;

               (xxv) In the event that the Mortgagor is an inter vivos "living"
      trust, (i) such trust is in compliance with FNMA or FHLMC standards for
      inter vivos trusts and (ii) holding title to the Mortgaged Property in
      such trust will not diminish any rights as a creditor including the right
      to full title to the Mortgaged Property in the event foreclosure
      proceedings are initiated; and

               (xxvi) If the Mortgage Loan is secured by a long-term residential
      lease, (1) the lessor under the lease holds a fee simple interest in the
      land; (2) the terms of such lease expressly permit the mortgaging of the
      leasehold estate, the assignment of the lease without the lessor's consent
      and the acquisition by the holder of the Mortgage of the rights of the
      lessee upon foreclosure or assignment in lieu of foreclosure or provide
      the holder of the Mortgage with substantially similar protections; (3) the
      terms of such lease do not (a) allow the termination thereof upon the
      lessee's default without the holder of the Mortgage being entitled to
      receive written notice of, and opportunity to cure, such default, (b)
      allow the termination of the lease in the event of damage or destruction
      as long as the Mortgage is in existence, (c) prohibit the holder of the
      Mortgage from being insured (or receiving proceeds of insurance) under the
      hazard insurance policy or policies relating to the Mortgaged Property or
      (d) permit any increase in rent other than pre-established increases set
      forth in the lease; (4) the original term of such lease is not less than
      15 years; (5) the term of such lease does not terminate earlier than five
      years after the maturity date of the Mortgage Note; and (6) the Mortgaged
      Property is located in a jurisdiction in which the use of leasehold
      estates in transferring ownership in residential properties is a widely
      accepted practice;

            Notwithstanding the foregoing, no representations or warranties are
made by the Seller as to the environmental condition of any Mortgaged Property;
the absence, presence or effect of hazardous wastes or hazardous substances on
any Mortgaged Property; any casualty resulting from the presence or effect of
hazardous wastes or hazardous substances on, near or emanating from any
Mortgaged Property; the impact on Certificateholders of any environmental
condition or presence of any hazardous substance on or near any Mortgaged
Property; or the compliance of any Mortgaged Property with any environmental
laws, nor is any agent, person or entity otherwise affiliated with the Seller
authorized or able to make any such representation, warranty or assumption of
liability relative to any Mortgaged Property. In addition, no representations or
warranties are made by the Seller with respect to the absence or effect of fraud
in the origination of any Mortgage Loan.

            It is understood and agreed that the representations and warranties
set forth in this Section 2.03(b) shall survive delivery of the respective Owner
Mortgage Loan Files to the Trustee and shall inure to the benefit of the
Trustee, notwithstanding any restrictive or qualified endorsement or assignment.

            (c) Upon discovery by either the Seller, the Master Servicer, the
Trustee or the Custodian that any of the representations and warranties made in
subsection (b) above is not accurate (referred to herein as a "breach") and,
except for a breach of the representation and warranty set forth in subsection
(b)(i), where such breach is a result of the Cut-Off Date Principal Balance of a
Mortgage Loan being greater, by $5,000 or greater, than the Cut-Off Date
Principal Balance of such Mortgage Loan indicated on the Mortgage Loan Schedule,
that such breach materially and adversely affects the interests of the
Certificateholders in the related Mortgage Loan, the party discovering such
breach shall give prompt written notice to the other parties (any Custodian
being so obligated under a Custodial Agreement). Within 60 days of the earlier
of its discovery or its receipt of notice of any such breach, the Seller shall
cure such breach in all material respects or shall either (i) repurchase the
Mortgage Loan or any property acquired in respect thereof from the Trust Estate
at a price equal to (A) 100% of the unpaid principal balance of such Mortgage
Loan plus (B) accrued interest at the Net Mortgage Interest Rate for such
Mortgage Loan through the last day of the month in which such repurchase took
place or (ii) if within two years of the Startup Day, or such other period
permitted by the REMIC Provisions, substitute for such Mortgage Loan in the
manner described in Section 2.02. The purchase price of any repurchase described
in this paragraph and the Substitution Principal Amount, if any, plus accrued
interest thereon and the other amounts referred to in Section 2.02, shall be
deposited in the Certificate Account. It is understood and agreed that the
obligation of the Seller to repurchase or substitute for any Mortgage Loan or
property as to which such a breach has occurred and is continuing shall
constitute the sole remedy respecting such breach available to
Certificateholders or the Trustee on behalf of Certificateholders, and such
obligation shall survive until termination of the Trust Estate hereunder.

            SECTION 2.04      EXECUTION AND DELIVERY OF CERTIFICATES.

            The Trustee acknowledges the assignment to it of the Mortgage Loans
and the delivery of the Owner Mortgage Loan Files to it, and, concurrently with
such delivery, has executed and delivered to or upon the order of the Seller, in
exchange for the Mortgage Loans together with all other assets included in the
definition of "Trust Estate", receipt of which is hereby acknowledged,
Certificates in authorized denominations which evidence ownership of the entire
Trust Estate.

            SECTION 2.05      DESIGNATION OF CERTIFICATES; DESIGNATION OF
                              STARTUP DAY AND LATEST POSSIBLE MATURITY DATE.

            The Seller hereby designates the Classes of Class A Certificates
(other than the Class I-A-R Certificate) and the Classes of Class B Certificates
as classes of "regular interests" and the Class I-A-R Certificate as the single
class of "residual interest" in the REMIC for the purposes of Code Sections
860G(a)(1) and 860G(a)(2), respectively. The Closing Date is hereby designated
as the "Startup Day" of the REMIC within the meaning of Code Section 860G(a)(9).
The "latest possible maturity date" of the regular interests in the REMIC is
February 25, 2030 for purposes of Code Section 860G(a)(1).


<PAGE>


                                   ARTICLE III

                ADMINISTRATION OF THE TRUST ESTATE: SERVICING
                              OF THE MORTGAGE LOANS

            SECTION 3.01      CERTIFICATE ACCOUNT.

            (a) The Master Servicer shall establish and maintain a Certificate
Account for the deposit of funds received by the Master Servicer with respect to
the Mortgage Loans serviced by each Servicer pursuant to each of the Servicing
Agreements. Such account shall be maintained as an Eligible Account. The Master
Servicer shall give notice to each Servicer and the Seller of the location of
the Certificate Account and of any change in the location thereof.

            (b) The Master Servicer shall deposit into the Certificate Account
on the day of receipt thereof all amounts received by it from any Servicer
pursuant to any of the Servicing Agreements, any amounts received by it upon the
sale of any (A) MLCC Additional Collateral pursuant to the terms of the Mortgage
100SM Pledge Agreement, the Parent Power(R) Guaranty and Security Agreement for
Securities Account or the Parent Power(R) Guaranty Agreement for Real Estate, or
(B) MSDW Additional Collateral pursuant to the terms of the Dual Collateral
Pledge Agreement or any amounts received pursuant to the MLCC Surety Bond or the
MSDW Surety Bond, and shall, in addition, deposit into the Certificate Account
the following amounts, in the case of amounts specified in clause (i), not later
than the Distribution Date on which such amounts are required to be distributed
to Certificateholders and, in the case of the amounts specified in clause (ii),
not later than the Business Day next following the day of receipt and posting by
the Master Servicer:

               (i) Periodic Advances pursuant to Section 3.03(a) made by the
      Master Servicer or the Trustee, if any and any amounts deemed received by
      the Master Servicer pursuant to Section 3.01(d); and

               (ii) in the case of any Mortgage Loan that is repurchased by the
      Seller pursuant to Section 2.02 or 2.03 or that is auctioned by the Master
      Servicer pursuant to Section 3.08 or purchased by the Master Servicer
      pursuant to Section 3.08 or 9.01, the purchase price therefor or, where
      applicable, any Substitution Principal Amount and any amounts received in
      respect of the interest portion of unreimbursed Periodic Advances.

            (c) The Master Servicer shall cause the funds in the Certificate
Account to be invested in Eligible Investments. No such Eligible Investments
will be sold or disposed of at a gain prior to maturity unless the Master
Servicer has received an Opinion of Counsel or other evidence satisfactory to it
that such sale or disposition will not cause the Trust Estate to be subject to
Prohibited Transactions Tax, otherwise subject the Trust Estate to tax, or cause
the Trust Estate to fail to qualify as a REMIC while any Certificates are
outstanding. Any amounts deposited in the Certificate Account prior to the
Distribution Date shall be invested for the account of the Master Servicer and
any investment income thereon shall be additional compensation to the Master
Servicer for services rendered under this Agreement. The amount of any losses
incurred in respect of any such investments shall be deposited in the
Certificate Account by the Master Servicer out of its own funds immediately as
realized.

            (d) For purposes of this Agreement, the Master Servicer will be
deemed to have received from a Servicer on the applicable Remittance Date for
such funds all amounts deposited by such Servicer into the Custodial Account for
P&I maintained in accordance with the applicable Servicing Agreement, if such
Custodial Account for P&I is not an Eligible Account as defined in this
Agreement, to the extent such amounts are not actually received by the Master
Servicer on such Remittance Date as a result of the bankruptcy, insolvency,
receivership or other financial distress of the depository institution in which
such Custodial Account for P&I is being held. To the extent that amounts so
deemed to have been received by the Master Servicer are subsequently remitted to
the Master Servicer, the Master Servicer shall be entitled to retain such
amounts.

            SECTION 3.02      PERMITTED WITHDRAWALS FROM THE CERTIFICATE
                              ACCOUNT.

            (a) The Master Servicer may, from time to time, make withdrawals
from the Certificate Account for the following purposes (limited, in the case of
Servicer reimbursements, to cases where funds in the respective Custodial P&I
Account are not sufficient therefor):

               (i) to reimburse the Master Servicer, the Trustee or any Servicer
      for Periodic Advances made by the Master Servicer or the Trustee pursuant
      to Section 3.03(a) or any Servicer pursuant to any Servicing Agreement
      with respect to previous Distribution Dates, such right to reimbursement
      pursuant to this subclause (i) being limited to amounts received on or in
      respect of particular Mortgage Loans (including, for this purpose,
      Liquidation Proceeds, REO Proceeds and proceeds from the purchase, sale,
      repurchase or substitution of Mortgage Loans pursuant to Sections 2.02,
      2.03, 3.08 or 9.01) respecting which any such Periodic Advance was made;

               (ii) to reimburse any Servicer, the Master Servicer or the
      Trustee for any Periodic Advances determined in good faith to have become
      Nonrecoverable Advances provided, however, that any portion of
      Nonrecoverable Advances representing Fixed Retained Yield shall be
      reimbursable only from amounts constituting Fixed Retained Yield and not
      from the assets of the Trust Estate;

               (iii) to reimburse the Master Servicer or any Servicer from
      Liquidation Proceeds for Liquidation Expenses and for amounts expended by
      the Master Servicer or any Servicer pursuant hereto or to any Servicing
      Agreement, respectively, in good faith in connection with the restoration
      of damaged property or for foreclosure expenses;

               (iv) from any Mortgagor payment on account of interest or other
      recovery (including Net REO Proceeds) with respect to a particular
      Mortgage Loan, to pay the Master Servicing Fee with respect to such
      Mortgage Loan to the Master Servicer;

               (v)to reimburse the Master Servicer, any Servicer or the Trustee
      (or, in certain cases, the Seller) for expenses incurred by it (including
      taxes paid on behalf of the Trust Estate) and recoverable by or
      reimbursable to it pursuant to Section 3.03(c), 3.03(d) or 6.03 or the
      second sentence of Section 8.14(a) or pursuant to such Servicer's
      Servicing Agreement, provided such expenses are "unanticipated" within the
      meaning of the REMIC Provisions;

               (vi) to pay to the Seller or other purchaser with respect to each
      Mortgage Loan or property acquired in respect thereof that has been
      repurchased or replaced pursuant to Section 2.02 or 2.03 or auctioned
      pursuant to Section 3.08 or to pay to the Master Servicer with respect to
      each Mortgage Loan or property acquired in respect thereof that has been
      purchased pursuant to Section 3.08 or 9.01, all amounts received thereon
      and not required to be distributed as of the date on which the related
      repurchase or purchase price or Scheduled Principal Balance was
      determined;

               (vii) to remit funds to the Paying Agent in the amounts and in
      the manner provided for herein;

               (viii) to pay to the Master Servicer any interest earned on or
      investment income with respect to funds in the Certificate Account;

               (ix) to pay to the Master Servicer or any Servicer out of
      Liquidation Proceeds allocable to interest the amount of any unpaid Master
      Servicing Fee or Servicing Fee (as adjusted pursuant to the related
      Servicing Agreement) and any unpaid assumption fees, late payment charges
      or other Mortgagor charges on the related Mortgage Loan;

               (x) to withdraw from the Certificate Account any amount deposited
      in the Certificate Account that was not required to be deposited therein;

               (xi) to clear and terminate the Certificate Account pursuant to
      Section 9.01; and

               (xii) to pay to Norwest Mortgage from any Mortgagor payment on
      account of interest or other recovery (including Net REO Proceeds) with
      respect to a particular Mortgage Loan, the Fixed Retained Yield, if any,
      with respect to such Mortgage Loan; provided, however, that with respect
      to any payment of interest received by the Master Servicer in respect of a
      Mortgage Loan (whether paid by the Mortgagor or received as Liquidation
      Proceeds, Insurance Proceeds or otherwise) which is less than the full
      amount of interest then due with respect to such Mortgage Loan, only that
      portion of such payment of interest that bears the same relationship to
      the total amount of such payment of interest as the Fixed Retained Yield
      Rate, if any, in respect of such Mortgage Loan bears to the Mortgage
      Interest Rate shall be allocated to the Fixed Retained Yield with respect
      thereto.

            (b) The Master Servicer shall keep and maintain separate accounting,
on a Mortgage Loan by Mortgage Loan basis, for the purpose of justifying any
payment to and withdrawal from the Certificate Account.

            SECTION 3.03      ADVANCES BY MASTER SERVICER AND TRUSTEE.

            (a) In the event an Other Servicer fails to make any required
Periodic Advances of principal and interest on a Mortgage Loan as required by
the related Other Servicing Agreement prior to the Distribution Date occurring
in the month during which such Periodic Advance is due, the Master Servicer
shall make Periodic Advances to the extent provided hereby. In the event Norwest
Mortgage fails to make any required Periodic Advances of principal and interest
on a Mortgage Loan as required by the Norwest Servicing Agreement prior to the
Distribution Date occurring in the month during which such Periodic Advance is
due, the Trustee shall, to the extent required by Section 8.15, make such
Periodic Advance to the extent provided hereby, provided that the Trustee has
previously received the certificate of the Master Servicer described in the
following sentence. The Master Servicer shall certify to the Trustee with
respect to any such Distribution Date (i) the amount of Periodic Advances
required of Norwest Mortgage or such Other Servicer, as the case may be, (ii)
the amount actually advanced by Norwest Mortgage, (iii) the amount that the
Trustee or Master Servicer is required to advance hereunder and (iv) whether the
Master Servicer has determined that it reasonably believes that such Periodic
Advance is a Nonrecoverable Advance. Amounts advanced by the Trustee or Master
Servicer shall be deposited in the Certificate Account on the related
Distribution Date. Notwithstanding the foregoing, neither the Master Servicer
nor the Trustee will be obligated to make a Periodic Advance that it reasonably
believes to be a Nonrecoverable Advance. The Trustee may conclusively rely for
any determination to be made by it hereunder upon the determination of the
Master Servicer as set forth in its certificate.

            (b) To the extent an Other Servicer fails to make an advance on
account of the taxes or insurance premiums with respect to a Mortgage Loan
required pursuant to the related Other Servicing Agreement, the Master Servicer
shall, if the Master Servicer knows of such failure of the Servicer, advance
such funds and take such steps as are necessary to pay such taxes or insurance
premiums. To the extent Norwest Mortgage fails to make an advance on account of
the taxes or insurance premiums with respect to a Mortgage Loan required
pursuant to the Norwest Servicing Agreement, the Master Servicer shall, if the
Master Servicer knows of such failure of Norwest Mortgage, certify to the
Trustee that such failure has occurred. Upon receipt of such certification, the
Trustee shall advance such funds and take such steps as are necessary to pay
such taxes or insurance premiums.

            (c) The Master Servicer and the Trustee shall each be entitled to be
reimbursed from the Certificate Account for any Periodic Advance made by it
under Section 3.03(a) to the extent described in Section 3.02(a)(i) and (a)(ii).
The Master Servicer and the Trustee shall be entitled to be reimbursed pursuant
to Section 3.02(a)(v) for any advance by it pursuant to Section 3.03(b). The
Master Servicer shall diligently pursue restoration of such amount to the
Certificate Account from the related Servicer. The Master Servicer shall, to the
extent it has not already done so, upon the request of the Trustee, withdraw
from the Certificate Account and remit to the Trustee any amounts to which the
Trustee is entitled as reimbursement pursuant to Section 3.02 (a)(i), (ii) and
(v).

            (d) Except as provided in Section 3.03(a) and (b), neither the
Master Servicer nor the Trustee shall be required to pay or advance any amount
which any Servicer was required, but failed, to deposit in the Certificate
Account.

            SECTION 3.04      TRUSTEE TO COOPERATE;
                              RELEASE OF OWNER MORTGAGE LOAN FILES.

            Upon the receipt by the Master Servicer of a Request for Release in
connection with the deposit by a Servicer into the Certificate Account of the
proceeds from a Liquidated Loan or of a Prepayment in Full, the Master Servicer
shall confirm to the Trustee that all amounts required to be remitted to the
Certificate Account in connection with such Mortgage Loan have been so
deposited, and shall deliver such Request for Release to the Trustee. The
Trustee shall, within five Business Days of its receipt of such a Request for
Release, release the related Owner Mortgage Loan File to the Master Servicer or
such Servicer, as requested by the Master Servicer. No expenses incurred in
connection with any instrument of satisfaction or deed of reconveyance shall be
chargeable to the Certificate Account.

            From time to time and as appropriate for the servicing or
foreclosure of any Mortgage Loan, including but not limited to, collection under
any insurance policies, or to effect a partial release of any Mortgaged Property
from the lien of the Mortgage, the Servicer of such Mortgage Loan shall deliver
to the Master Servicer a Request for Release. Upon the Master Servicer's receipt
of any such Request for Release, the Master Servicer shall promptly forward such
request to the Trustee and the Trustee shall, within five Business Days, release
the related Owner Mortgage Loan File to the Master Servicer or such Servicer, as
requested by the Master Servicer. Any such Request for Release shall obligate
the Master Servicer or such Servicer, as the case may be, to return each and
every document previously requested from the Owner Mortgage Loan File to the
Trustee by the twenty-first day following the release thereof, unless (i) the
Mortgage Loan has been liquidated and the Liquidation Proceeds relating to the
Mortgage Loan have been deposited in the Certificate Account or (ii) the Owner
Mortgage Loan File or such document has been delivered to an attorney, or to a
public trustee or other public official as required by law, for purposes of
initiating or pursuing legal action or other proceedings for the foreclosure of
the Mortgaged Property either judicially or non-judicially, and the Master
Servicer has delivered to the Trustee a certificate of the Master Servicer or
such Servicer certifying as to the name and address of the Person to which such
Owner Mortgage Loan File or such document was delivered and the purpose or
purposes of such delivery. Upon receipt of an Officer's Certificate of the
Master Servicer or such Servicer stating that such Mortgage Loan was liquidated
and that all amounts received or to be received in connection with such
liquidation which are required to be deposited into the Certificate Account have
been so deposited, or that such Mortgage Loan has become an REO Mortgage Loan,
the Request for Release shall be released by the Trustee to the Master Servicer
or such Servicer, as appropriate.

            Upon written certification of the Master Servicer or the Servicer of
such Mortgage Loan, the Trustee shall execute and deliver to the Master Servicer
or such Servicer, as directed by the Master Servicer, court pleadings, requests
for trustee's sale or other documents necessary to the foreclosure or trustee's
sale in respect of a Mortgaged Property or to any legal action brought to obtain
judgment against any Mortgagor on the Mortgage Note or Mortgage or to obtain a
deficiency judgment, or to enforce any other remedies or rights provided by the
Mortgage Note or Mortgage or otherwise available at law or in equity. Each such
certification shall include a request that such pleadings or documents be
executed by the Trustee and a statement as to the reason such documents or
pleadings are required and that the execution and delivery thereof by the
Trustee will not invalidate or otherwise affect the lien of the Mortgage, except
for the termination of such a lien upon completion of the foreclosure proceeding
or trustee's sale.

            SECTION 3.05      REPORTS TO THE TRUSTEE; ANNUAL COMPLIANCE
                              STATEMENTS.

            (a) Not later than 15 days after each Distribution Date, the Master
Servicer shall deliver to the Trustee a statement setting forth the status of
the Certificate Account as of the close of business on such Distribution Date
stating that all distributions required to be made by the Master Servicer under
this Agreement have been made (or, if any required distribution has not been
made by the Master Servicer, specifying the nature and status thereof) and
showing, for the period covered by such statement, the aggregate amount of
deposits into and withdrawals from such account for each category of deposit and
withdrawal specified in Sections 3.01 and 3.02. Such statement may be in the
form of the then current FNMA monthly accounting report for its Guaranteed
Mortgage Pass-Through Program with appropriate additions and changes, and shall
also include information as to the aggregate unpaid principal balance of all of
the Mortgage Loans as of the close of business as of the last day of the
calendar month immediately preceding such Distribution Date. Copies of such
statement shall be provided by the Trustee to any Certificateholder upon written
request, provided such statement is delivered, or caused to be delivered, by the
Master Servicer to the Trustee.

            (b) The Master Servicer shall deliver to the Trustee on or before
April 30 of each year, a certificate signed by an officer of the Master
Servicer, certifying that (i) such officer has reviewed the activities of the
Master Servicer during the preceding calendar year or portion thereof and its
performance under this agreement and (ii) to the best of such officer's
knowledge, based on such review, the Master Servicer has performed and fulfilled
its duties, responsibilities and obligations under this agreement in all
material respects throughout such year, or, if there has been a default in the
fulfillment of any such duties, responsibilities or obligations, specifying each
such default known to such officer and the nature and status thereof, and, (iii)
(A) the Master Servicer has received from each Servicer any financial
statements, officer's certificates, accountant's statements or other information
required to be provided to the Master Servicer pursuant to the related Servicing
Agreement and (B) to the best of such officer's knowledge, based on a review of
the information provided to the Master Servicer by each Servicer as described in
(iii)(A) above, each Servicer has performed and fulfilled its duties,
responsibilities and obligations under the related Servicing Agreement in all
material respects throughout such year, or, if there has been a default in the
fulfillment of any such duties, responsibilities or obligations, specifying each
such default known to such officer and the nature and status thereof. Copies of
such officers' certificate shall be provided by the Trustee to any
Certificateholder upon written request provided such certificate is delivered,
or caused to be delivered, by the Master Servicer to the Trustee.

            SECTION 3.06      TITLE, MANAGEMENT AND DISPOSITION OF ANY REO
                              MORTGAGE LOAN.

            The Master Servicer shall ensure that each REO Mortgage Loan is
administered by the related Servicer at all times so that it qualifies as
"foreclosure property" under the REMIC Provisions and that it does not earn any
"net income from foreclosure property" which is subject to tax under the REMIC
Provisions. In the event that a Servicer is unable to dispose of any REO
Mortgage Loan within the period mandated by each of the Servicing Agreements,
the Master Servicer shall monitor such Servicer to verify that such REO Mortgage
Loan is auctioned to the highest bidder within the period so specified. In the
event of any such sale of REO Mortgage Loan, the Trustee shall, at the written
request of the Master Servicer and upon being supported with appropriate forms
therefor, within five Business Days of the deposit by the Master Servicer of the
proceeds of such sale or auction into the Certificate Account, release or cause
to be released to the entity identified by the Master Servicer the related Owner
Mortgage Loan File and Servicer Mortgage Loan File and shall execute and deliver
such instruments of transfer or assignment, in each case without recourse, as
shall be necessary to vest in the auction purchaser title to the REO Mortgage
Loan and the Trustee shall have no further responsibility with regard to such
Owner Mortgage Loan File or Servicer Mortgage Loan File. Neither the Trustee,
the Master Servicer nor any Servicer, acting on behalf of the Trust Estate,
shall provide financing from the Trust Estate to any purchaser of an REO
Mortgage Loan.

            SECTION 3.07      AMENDMENTS TO SERVICING AGREEMENTS,
                              MODIFICATION OF STANDARD PROVISIONS.

            (a) Subject to the prior written consent of the Trustee pursuant to
Section 3.07(b), the Master Servicer from time to time may, to the extent
permitted by the applicable Servicing Agreement, make such modifications and
amendments to such Servicing Agreement as the Master Servicer deems necessary or
appropriate to confirm or carry out more fully the intent and purpose of such
Servicing Agreement and the duties, responsibilities and obligations to be
performed by the Servicer thereunder. Such modifications may only be made if
they are consistent with the REMIC Provisions, as evidenced by an Opinion of
Counsel. Prior to the issuance of any modification or amendment, the Master
Servicer shall deliver to the Trustee such Opinion of Counsel and an Officer's
Certificate setting forth (i) the provision that is to be modified or amended,
(ii) the modification or amendment that the Master Servicer desires to issue and
(iii) the reason or reasons for such proposed amendment or modification.

            (b) The Trustee shall consent to any amendment or supplement to a
Servicing Agreement proposed by the Master Servicer pursuant to Section 3.07(a),
which consent and amendment shall not require the consent of any
Certificateholder if it is (i) for the purpose of curing any mistake or
ambiguity or to further effect or protect the rights of the Certificateholders
or (ii) for any other purpose, provided such amendment or supplement for such
other purpose cannot reasonably be expected to adversely affect
Certificateholders. The lack of reasonable expectation of an adverse effect on
Certificateholders may be established through the delivery to the Trustee of (i)
an Opinion of Counsel to such effect or (ii) written notification from each
Rating Agency to the effect that such amendment or supplement will not result in
reduction of the current rating assigned by that Rating Agency to the
Certificates. Notwithstanding the two immediately preceding sentences, the
Trustee may, in its discretion, decline to enter into or consent to any such
supplement or amendment if its own rights, duties or immunities shall be
adversely affected.

            (c)(i) Notwithstanding anything to the contrary in this Section
3.07, the Master Servicer from time to time may, without the consent of any
Certificateholder or the Trustee, enter into an amendment (A) to an Other
Servicing Agreement for the purpose of (i) eliminating or reducing Month End
Interest and (ii) providing for the remittance of Full Unscheduled Principal
Receipts by the applicable Servicer to the Master Servicer not later than the
24th day of each month (or if such day is not a Business Day, on the previous
Business Day) or (B) to the Norwest Servicing Agreement for the purpose of
changing the applicable Remittance Date to the 18th day of each month (or if
such day is not a Business Day, on the previous Business Day).

            (ii) The Master Servicer may direct Norwest Mortgage to enter into
an amendment to the Norwest Servicing Agreement for the purposes described in
Sections 3.07(c)(i)(B) and 10.01(b)(iii).

            SECTION 3.08      OVERSIGHT OF SERVICING.

            The Master Servicer shall supervise, monitor and oversee the
servicing of the Mortgage Loans by each Servicer and the performance by each
Servicer of all services, duties, responsibilities and obligations that
(including the obligation to maintain an Errors and Omissions Policy and
Fidelity Bond) are to be observed or performed by the Servicer under its
respective Servicing Agreement. In performing its obligations hereunder, the
Master Servicer shall act in a manner consistent with Accepted Master Servicing
Practices and with the Trustee's and the Certificateholders' reliance on the
Master Servicer, and in a manner consistent with the terms and provisions of any
insurance policy required to be maintained by the Master Servicer or any
Servicer pursuant to this Agreement or any Servicing Agreement. The Master
Servicer acknowledges that prior to taking certain actions required to service
the Mortgage Loans, each Servicing Agreement provides that the Servicer
thereunder must notify, consult with, obtain the consent of or otherwise follow
the instructions of the Master Servicer. The Master Servicer is also given
authority to waive compliance by a Servicer with certain provisions of its
Servicing Agreement. In each such instance, the Master Servicer shall promptly
instruct such Servicer or otherwise respond to such Servicer's request. In no
event will the Master Servicer instruct such Servicer to take any action, give
any consent to action by such Servicer or waive compliance by such Servicer with
any provision of such Servicer's Servicing Agreement if any resulting action or
failure to act would be inconsistent with the requirements of the Rating
Agencies that rated the Certificates or would otherwise have an adverse effect
on the Certificateholders. Any such action or failure to act shall be deemed to
have an adverse effect on the Certificateholders if such action or failure to
act either results in (i) the downgrading of the rating assigned by any Rating
Agency to the Certificates, (ii) the loss by the Trust Estate of REMIC status
for federal income tax purposes or (iii) the imposition of any Prohibited
Transaction Tax or any federal taxes on the REMIC or the Trust Estate. The
Master Servicer shall have full power and authority in its sole discretion to
take any action with respect to the Trust Estate as may be necessary or
advisable to avoid the circumstances specified including clause (ii) or (iii) of
the preceding sentence.

            For the purposes of determining whether any modification of a
Mortgage Loan shall be permitted by the Trustee or the Master Servicer, such
modification shall be construed as a substitution of the modified Mortgage Loan
for the Mortgage Loan originally deposited in the Trust Estate if it would be a
"significant modification" within the meaning of Section 1.860G-2(b) of the
regulations of the U.S. Department of the Treasury. No modification shall be
approved unless (i) the modified Mortgage Loan would qualify as a Substitute
Mortgage Loan under Section 2.02 and (ii) with respect to any modification that
occurs more than three months after the Closing Date and is not the result of a
default or a reasonably foreseeable default under the Mortgage Loan, there is
delivered to the Trustee an Opinion of Counsel (at the expense of the party
seeking to modify the Mortgage Loan) to the effect that such modification would
not be treated as giving rise to a new debt instrument for federal income tax
purposes as described in the preceding sentence.

            During the term of this Agreement, the Master Servicer shall consult
fully with each Servicer as may be necessary from time to time to perform and
carry out the Master Servicer's obligations hereunder and otherwise exercise
reasonable efforts to encourage such Servicer to perform and observe the
covenants, obligations and conditions to be performed or observed by it under
its Servicing Agreement.

            The relationship of the Master Servicer to the Trustee under this
Agreement is intended by the parties to be that of an independent contractor and
not that of a joint venturer, partner or agent.

            The Master Servicer shall administer the Trust Estate on behalf of
the Trustee and shall have full power and authority, acting alone or (subject to
Section 6.06) through one or more subcontractors, to do any and all things in
connection with such administration which it may deem necessary or desirable.
Upon the execution and delivery of this Agreement, and from time to time as may
be required thereafter, the Trustee shall furnish the Master Servicer or its
subcontractors with any powers of attorney and such other documents as may be
necessary or appropriate to enable the Master Servicer to carry out its
administrative duties hereunder.

            The Seller shall be entitled to repurchase at its option (i) any
defaulted Mortgage Loan or any Mortgage Loan as to which default is reasonably
foreseeable from the Trust Estate if, in the Seller's judgment, the default is
not likely to be cured by the Mortgagor or (ii) any Mortgage Loan in the Trust
Estate which, pursuant to paragraph 5(b) of the Mortgage Loan Purchase
Agreement, Norwest Mortgage requests the Seller to repurchase and to sell to
Norwest Mortgage to facilitate the exercise of Norwest Mortgage's rights against
the originator or a prior holder of such Mortgage Loan. The purchase price for
any such Mortgage Loan shall be 100% of the unpaid principal balance of such
Mortgage Loan plus accrued interest thereon at the Mortgage Interest Rate for
such Mortgage Loan, through the last day of the month in which such repurchase
occurs. Upon the receipt of such purchase price, the Master Servicer shall
provide to the Trustee the certification required by Section 3.04 and the
Trustee and the Custodian, if any, shall promptly release to the Seller the
Owner Mortgage Loan File relating to the Mortgage Loan being repurchased.

            In the event that (i) the Master Servicer determines at any time
that, notwithstanding the representations and warranties set forth in Section
2.03(b), any Mortgage Loan is not a "qualified mortgage" within the meaning of
Section 860G of the Code and (ii) the Master Servicer is unable to enforce the
obligation of the Seller to purchase such Mortgage Loan pursuant to Section 2.02
within two months of such determination, the Master Servicer shall cause such
Mortgage Loan to be auctioned to the highest bidder and sold out of the Trust
Estate no later than the date 90 days after such determination. In the event of
any such sale of a Mortgage Loan, the Trustee shall, at the written request of
the Master Servicer and upon being supported with appropriate forms therefor,
within five Business Days of the deposit by the Master Servicer of the proceeds
of such auction into the Certificate Account, release or cause to be released to
the entity identified by the Master Servicer the related Owner Mortgage Loan
File and Servicer Mortgage Loan File and shall execute and deliver such
instruments of transfer or assignment, in each case without recourse, as shall
be necessary to vest in the auction purchaser title to the Mortgage Loan and the
Trustee shall have no further responsibility with regard to such Owner Mortgage
Loan File or Servicer Mortgage Loan File. Neither the Trustee, the Master
Servicer nor any Servicer, acting on behalf of the Trustee, shall provide
financing from the Trust Estate to any purchaser of a Mortgage Loan.

            The Master Servicer, on behalf of the Trustee, shall, pursuant to
the Servicing Agreements, object to the foreclosure upon, or other related
conversion of the ownership of, any Mortgaged Property by the related Servicer
if (i) the Master Servicer believes such Mortgaged Property may be contaminated
with or affected by hazardous wastes or hazardous substances or (ii) such
Servicer does not agree to administer such Mortgaged Property, once the related
Mortgage Loan becomes an REO Mortgage Loan, in a manner which would not result
in a federal tax being imposed upon the Trust Estate or the REMIC.

            MLCC Additional Collateral and MSDW Additional Collateral may be
liquidated and the proceeds applied to cover any shortfalls upon the liquidation
of a Mortgaged Property; provided, however, that the Trust Estate in no event
shall acquire ownership of either the MLCC Additional Collateral or the MSDW
Additional Collateral unless the Trustee shall have received an Opinion of
Counsel that such ownership shall not cause the Trust Estate to fail to qualify
as a REMIC or subject the REMIC to any tax.

            The Master Servicer may enter into a special servicing agreement
with an unaffiliated holder of 100% Percentage Interest of a Class of Class B
Certificates or a holder of a class of securities representing interests in the
Class B Certificates and/or other subordinated mortgage pass-through
certificates, such agreement to be substantially in the form of Exhibit M hereto
or subject to each Rating Agency's acknowledgment that the ratings of the
Certificates in effect immediately prior to the entering into of such agreement
would not be qualified, downgraded or withdrawn and the Certificates would not
be placed on credit review status (except for possible upgrading) as a result of
such agreement. Any such agreement may contain provisions whereby such holder
may instruct the Master Servicer to instruct a Servicer to the extent provided
in the applicable Servicing Agreement to commence or delay foreclosure
proceedings with respect to delinquent Mortgage Loans and will contain
provisions for the deposit of cash by the holder that would be available for
distribution to Certificateholders if Liquidation Proceeds are less than they
otherwise may have been had the Servicer acted in accordance with its normal
procedures.

            SECTION 3.09      TERMINATION AND SUBSTITUTION OF SERVICING
                              AGREEMENTS.

            Upon the occurrence of any event for which a Servicer may be
terminated pursuant to its Servicing Agreement, the Master Servicer shall
promptly deliver to the Seller and the Trustee an Officer's Certificate
certifying that an event has occurred which may justify termination of such
Servicing Agreement, describing the circumstances surrounding such event and
recommending what action should be taken by the Trustee with respect to such
Servicer. If the Master Servicer recommends that such Servicing Agreement be
terminated, the Master Servicer's certification must state that the breach is
material and not merely technical in nature. Upon written direction of the
Master Servicer, based upon such certification, the Trustee shall promptly
terminate such Servicing Agreement. Notwithstanding the foregoing, in the event
that (i) Norwest Mortgage fails to make any advance, as a consequence of which
the Trustee is obligated to make an advance pursuant to Section 3.03 and (ii)
the Trustee provides Norwest Mortgage written notice of the failure to make such
advance and such failure shall continue unremedied for a period of 15 days after
receipt of such notice, the Trustee shall terminate the Norwest Servicing
Agreement without the recommendation of the Master Servicer. The Master Servicer
shall indemnify the Trustee and hold it harmless from and against any and all
claims, liabilities, costs and expenses (including, without limitation,
reasonable attorneys' fees) arising out of, or assessed against the Trustee in
connection with termination of such Servicing Agreement at the direction of the
Master Servicer. If the Trustee terminates such Servicing Agreement, the Trustee
may enter into a substitute Servicing Agreement with the Master Servicer or, at
the Master Servicer's nomination, with another mortgage loan service company
acceptable to the Trustee, the Master Servicer and each Rating Agency under
which the Master Servicer or such substitute servicer, as the case may be, shall
assume, satisfy, perform and carry out all liabilities, duties, responsibilities
and obligations that are to be, or otherwise were to have been, satisfied,
performed and carried out by such Servicer under such terminated Servicing
Agreement. Until such time as the Trustee enters into a substitute servicing
agreement with respect to the Mortgage Loans previously serviced by such
Servicer, the Master Servicer shall assume, satisfy, perform and carry out all
obligations which otherwise were to have been satisfied, performed and carried
out by such Servicer under its terminated Servicing Agreement. However, in no
event shall the Master Servicer be deemed to have assumed the obligations of a
Servicer to advance payments of principal and interest on a delinquent Mortgage
Loan in excess of the Master Servicer's independent Periodic Advance obligation
under Section 3.03 of this Agreement. As compensation for the Master Servicer of
any servicing obligations fulfilled or assumed by the Master Servicer, the
Master Servicer shall be entitled to any servicing compensation to which a
Servicer would have been entitled if the Servicing Agreement with such Servicer
had not been terminated.

            SECTION 3.10      APPLICATION OF NET LIQUIDATION PROCEEDS.

            For all purposes under this agreement, Net Liquidation Proceeds
received from a Servicer shall be allocated first to accrued and unpaid interest
on the related Mortgage Loan and then to the unpaid principal balance thereof.

            SECTION 3.11      ACT REPORTS.

            The Master Servicer shall, on behalf of the Seller, make all filings
required to be made by the Seller with respect to the Class A Certificates
(other than the Class I-A-PO and Class II-A-PO Certificates) and the Class B-1,
Class B-2 and Class B-3 Certificates pursuant to the Securities Exchange Act of
1934, as amended.


<PAGE>


                                   ARTICLE IV

                  DISTRIBUTIONS IN RESPECT OF CERTIFICATES;
                         PAYMENTS TO CERTIFICATEHOLDERS;
                             STATEMENTS AND REPORTS

            SECTION 4.01      DISTRIBUTIONS.

            (a) On each Distribution Date, the Group I Pool Distribution Amount
and Group II Pool Distribution Amount will be applied in the following amounts,
to the extent the Group I Pool Distribution Amount and Group II Pool
Distribution Amount are sufficient therefor, in the manner and in the order of
priority as follows, subject to adjustment in accordance with Section
4.01(b)(iii) below:

               (i) with respect to the Group I-A Certificates and Group II-A
      Certificates, from the Group I Pool Distribution Amount and Group II Pool
      Distribution Amount, respectively, as follows:

            first, (A) to the Classes of Group I-A Certificates, pro rata, based
upon their respective Interest Accrual Amounts, in an aggregate amount up to the
Group I-A Interest Accrual Amount with respect to such Distribution Date; or (B)
to the Classes of Group II-A Certificates, pro rata, based upon their respective
Interest Accrual Amounts, in an aggregate amount up to the Group II-A Interest
Accrual Amount with respect to such Distribution Date;

            second, (A) to the Classes of Group I-A Certificates, pro rata,
based upon their respective Class A Unpaid Interest Shortfalls, in an aggregate
amount up to the Aggregate Group I-A Unpaid Interest Shortfall; or (B) to the
Classes of Group II-A Certificates, pro rata, based upon their respective Class
A Unpaid Interest Shortfalls, in an aggregate amount up to the Aggregate Group
II-A Unpaid Interest Shortfall;

            third, (A) concurrently, to the Group I-A Certificates (other than
the Class I-A-PO Certificates) and the Class I-A-PO Certificates, pro rata,
based on their respective Group I-A Non-PO Optimal Principal Amount and Class
I-A-PO Optimal Principal Amount, (1) to the Classes of Group I-A Certificates
(other than the Class I-A-PO Certificates), in an aggregate amount up to the
Group I-A Non-PO Optimal Principal Amount, such distribution to be allocated
among such Classes in accordance with Section 4.01(b)(i) or Section 4.01(c), as
applicable, and (2) to the Class I-A-PO Certificates in an amount up to the
Class I-A-PO Optimal Principal Amount or (B) concurrently, to the Group II-A
Certificates (other than the Class II-A-PO Certificates) and the Class II-A-PO
Certificates, pro rata, based on their respective Group II-A Non-PO Optimal
Principal Amount and Class II-A-PO Optimal Principal Amount, (1) to the Classes
of Group II-A Certificates (other than the Class II-A-PO Certificates), in an
aggregate amount up to the Group II-A Non-PO Optimal Principal Amount, such
distribution to be allocated among such Classes in accordance with Section
4.01(b)(ii) or Section 4.01(c), as applicable, and (2) to the Class II-A-PO
Certificates in an amount up to the Class II-A-PO Optimal Principal Amount;

            fourth, (A) to the Class I-A-PO Certificates in an amount up to the
Class I-A-PO Deferred Amount from amounts otherwise distributable (without
regard to this Clause (i) Paragraph fourth) first to the Class B-6 Certificates
pursuant to Clause (ii) Paragraph eighteenth, below, second to the Class B-5
Certificates pursuant to Clause (ii) Paragraph fifteenth, below, third to the
Class B-4 Certificates pursuant to Clause (ii) Paragraph twelfth, below, fourth
to the Class B-3 Certificates pursuant to Clause (ii) Paragraph ninth, below,
fifth to the Class B-2 Certificates pursuant to Clause (ii) Paragraph sixth
below, and sixth to the Class B-1 Certificates pursuant to Clause (ii) Paragraph
third below or (B) to the Class II-A-PO Certificates in an amount up to the
Class II-A-PO Deferred Amount from amounts otherwise distributable (without
regard to this Clause (i) Paragraph fourth) first to the Class B-6 Certificates
pursuant to Clause (ii) Paragraph eighteenth, below, second to the Class B-5
Certificates pursuant to Clause (ii) Paragraph fifteenth, below, third to the
Class B-4 Certificates pursuant to Clause (ii) Paragraph twelfth, below, fourth
to the Class B-3 Certificates pursuant to Clause (ii) Paragraph ninth, below,
fifth to the Class B-2 Certificates pursuant to Clause (ii) Paragraph sixth
below, and sixth to the Class B-1 Certificates pursuant to Clause (ii) Paragraph
third below; provided, however, to the extent necessary to reduce the Class
I-A-PO Deferred Amount and Class II-A-PO Deferred Amount to zero, any amounts
otherwise distributable to a Class of Class B Certificates will be allocated pro
rata between the Class I-A-PO Deferred Amount and the Class II-A-PO Deferred
Amount; and

               (ii) to the Class B Certificates, from the Group I Pool
      Distribution Amount and Group Pool II Distribution Amount, subject to
      Section 4.01(b)(iii), as follows:

            first, to the Class B-1 Certificates in an amount up to the Interest
Accrual Amount for the Class B-1 Certificates with respect to such Distribution
Date;

            second,  to the  Class  B-1  Certificates  in an  amount up to the
Class B-1 Unpaid Interest Shortfall;

            third, to the Class B-1 Certificates in an amount up to the Class
B-1 Optimal Principal Amount; provided, however, that the amount distributable
to the Class B-1 Certificates pursuant to this Clause (ii) Paragraph third will
be reduced by the amount, if any, that would have been distributable to the
Class B-1 Certificates hereunder used to pay the Class I-A-PO Deferred Amount
and Class II-A-PO Deferred Amount as provided in Clause (i) Paragraph fourth
above;

            fourth, to the Class B-2 Certificates in an amount up to the
Interest Accrual Amount for the Class B-2 Certificates with respect to such
Distribution Date;

            fifth, to the Class B-2  Certificates in an amount up to the Class
B-2 Unpaid Interest Shortfall;

            sixth, to the Class B-2 Certificates in an amount up to the Class
B-2 Optimal Principal Amount; provided, however, that the amount distributable
to the Class B-2 Certificates pursuant to this Clause (ii) Paragraph sixth will
be reduced by the amount, if any, that would have been distributable to the
Class B-2 Certificates hereunder used to pay the Class I-A-PO Deferred Amount
and Class II-A-PO Deferred Amount as provided in Clause (i) Paragraph fourth
above;

            seventh, to the Class B-3 Certificates in an amount up to the
Interest Accrual Amount for the Class B-3 Certificates with respect to such
Distribution Date;

            eighth,  to the  Class  B-3  Certificates  in an  amount up to the
Class B-3 Unpaid Interest Shortfall;

            ninth, to the Class B-3 Certificates in an amount up to the Class
B-3 Optimal Principal Amount; provided, however, that the amount distributable
to the Class B-3 Certificates pursuant to this Clause (ii) Paragraph ninth will
be reduced by the amount, if any, that would have been distributable to the
Class B-3 Certificates hereunder used to pay the Class I-A-PO Deferred Amount
and Class II-A-PO Deferred Amount as provided in Clause (i) Paragraph fourth
above;

            tenth, to the Class B-4 Certificates in an amount up to the Interest
Accrual Amount for the Class B-4 Certificates with respect to such Distribution
Date;

            eleventh,  to the  Class B-4  Certificates  in an amount up to the
Class B-4 Unpaid Interest Shortfall;

            twelfth, to the Class B-4 Certificates in an amount up to the Class
B-4 Optimal Principal Amount; provided, however, that the amount distributable
to the Class B-4 Certificates pursuant to this Clause (ii) Paragraph twelfth
will be reduced by the amount, if any, that would have been distributable to the
Class B-4 Certificates hereunder used to pay the Class I-A-PO Deferred Amount
and Class II-A-PO Deferred Amount as provided in Clause (i) Paragraph fourth
above;

            thirteenth, to the Class B-5 Certificates in an amount up to the
Interest Accrual Amount for the Class B-5 Certificates with respect to such
Distribution Date;

            fourteenth,  to the Class B-5  Certificates in an amount up to the
Class B-5 Unpaid Interest Shortfall;

            fifteenth, to the Class B-5 Certificates in an amount up to the
Class B-5 Optimal Principal Amount; provided, however, that the amount
distributable to the Class B-5 Certificates pursuant to this Clause (ii)
Paragraph fifteenth will be reduced by the amount, if any, that would have been
distributable to the Class B-5 Certificates hereunder used to pay the Class
I-A-PO Deferred Amount and Class II-A-PO Deferred Amount as provided in Clause
(i) Paragraph fourth above;

            sixteenth, to the Class B-6 Certificates in an amount up to the
Interest Accrual Amount for the Class B-6 Certificates with respect to such
Distribution Date;

            seventeenth,  to the Class B-6 Certificates in an amount up to the
Class B-6 Unpaid Interest Shortfall;

            eighteenth, to the Class B-6 Certificates in an amount up to the
Class B-6 Optimal Principal Amount; provided, however, that the amount
distributable to the Class B-6 Certificates pursuant to this Clause (ii)
Paragraph eighteenth will be reduced by the amount, if any, that would have been
distributable to the Class B-6 Certificates hereunder used to pay the Class
I-A-PO Deferred Amount and Class II-A-PO Deferred Amount as provided in Clause
(i) Paragraph fourth above; and

            nineteenth, to the Holder of the Class I-A-R Certificate.

            Notwithstanding the foregoing, after the Principal Balance of any
Class (other than the Class I-A-R Certificate) has been reduced to zero, such
Class will be entitled to no further distributions of principal or interest
(including, without limitation, any Unpaid Interest Shortfalls).

            In addition, Group I Net Foreclosure Profits and Group II Net
Foreclosure Profits, if any, with respect to such Distribution Date minus any
portion thereof payable to a Servicer pursuant to Section 3.02(ix) hereof shall
be distributed to the Holder of the Class I-A-R Certificate.

            With respect to any Distribution Date, the amount of the Principal
Adjustment, if any, attributable to any Class of Class B Certificates will be
allocated to the Classes of Class A Certificates (other than the Class I-A-PO
and Class II-A-PO Certificates) and any Class of Class B Certificates with a
lower numerical designation pro rata based on their outstanding Principal
Balances.

            (b) (i) On each Distribution Date prior to the Cross-Over Date, the
      Group I-A Non-PO Principal Distribution Amount will be allocated and
      distributed in reduction of the Principal Balances of the Classes of Group
      I-A Certificates (other than the Principal Balance of the Class I-A-PO
      Certificates) as follows:

            first, to the Class I-A-4 Certificates,  up to the Priority Amount
 for such Distribution Date;

            second, concurrently, as follows:

                  (a) 51.0303093409%, sequentially, to the Class I-A-R and Class
            I-A-1 Certificates, in that order, until the Principal Balance of
            each such Class has been reduced to zero;

                  (b) 48.9696906591%, sequentially, to the Class I-A-2 and Class
            I-A-5 Certificates, in that order, until the Principal Balance of
            each such Class has been reduced to zero;

            third, sequentially, to the Class I-A-6 and Class I-A-3
 Certificates, in that order, until the Principal Balance of each such Class has
 been reduced to zero; and

            fourth, to the Class I-A-4 Certificates, without regard to the
Priority Amount for such Distribution Date, until the Principal Balance thereof
has been reduced to zero.

               (ii) On each Distribution Date prior to the Cross-Over Date, the
      Group II-A Non-PO Principal Distribution Amount will be allocated and
      distributed in reduction of the Principal Balances of the Classes of Group
      II-A Certificates (other than the Principal Balance of the Class II-A-PO
      Certificates) as follows:

            first,  to the Class  II-A-1  Certificates,  until  the  Principal
Balance thereof has been reduced to zero; and

            second, to the Class II-A-2 Certificates, until the Principal
Balance thereof has been reduced to zero.

               (iii) Notwithstanding the foregoing, (X) on any Distribution Date
      occurring prior to the Cross-Over Date but on or after the date on which
      the Principal Balances of the Group I-A Certificates (other than the Class
      I-A-PO Certificates) or the Principal Balances of the Group II-A
      Certificates (other than the Class II-A-PO Certificates) have been reduced
      to zero and on which (a) the Aggregate Subordinate Percentage for such
      Distribution Date is less than 200% of the Original Aggregate Subordinate
      Percentage or (b) the aggregate outstanding principal balance of the
      Mortgage Loans in either Loan Group delinquent 60 days or more over the
      preceding six months as a percentage of the related Group Subordinate
      Amount is greater than or equal to 50%, the remaining Class or Classes of
      Class A Certificates (other than the Class I-A-PO Certificates or Class
      II-A-PO Certificates, as applicable) will be entitled to receive as
      principal, in addition to any principal payments described in Section
      4.01(a) above, in accordance with the priorities set forth in Section
      4.01(b)(i) or (ii) above and until the Principal Balance of each such
      Class of Class A Certificates has been reduced to zero, amounts otherwise
      distributable (without regard to this Clause (iii)) first to the Class B-6
      Certificates pursuant to Clause (ii) Paragraph eighteenth of 4.01(a)
      above, second to the Class B-5 Certificates pursuant to Clause (ii)
      Paragraph fifteenth of 4.01 (a) above, third to the Class B-4 Certificates
      pursuant to Clause (ii) Paragraph twelfth of 4.01(a) above, fourth to the
      Class B-3 Certificates pursuant to Clause (ii) Paragraph ninth of 4.01(a)
      above, fifth to the Class B-2 Certificates pursuant to Clause (ii)
      Paragraph sixth of 4.01(a) above and sixth to the Class B-1 Certificates
      pursuant to Clause (ii) Paragraph third of 4.01(a) above but in each case
      only up to the applicable Apportioned Class B Principal Distribution
      Amount for such Class of Class B Certificates and (Y) if on any
      Distribution Date the Group I-A Non-PO Principal Balance or Group II-A
      Non-PO Principal Balance (after giving effect to all distributions on such
      Distribution Date) is greater than the Group I-A Pool Balance (Non-PO
      Portion) or Group II-A Pool Balance (Non-PO Portion), respectively (the
      Group I-A Certificates or Group II-A Certificates, as applicable, in such
      instance, the "Undercollateralized Group"), the Class A Certificates
      (other than the Class I-A-PO or Class II-A-PO Certificates, as applicable)
      of the Undercollateralized Group will be entitled to receive first in
      respect of any Class A Unpaid Interest Shortfalls therefor (including any
      Group I Interest Shortfall Amount or Group II Interest Shortfall Amount,
      as applicable, arising on such Distribution Date) and second as principal,
      in addition to any principal payments described in Section 4.01(a) above,
      in accordance with the priorities set forth in Section 4.01(b)(i) or (ii)
      above and until the aggregate Principal Balance of the Class A
      Certificates (other than the Class I-A-PO or Class II-A-PO Certificates,
      as applicable) of the Undercollateralized Group equals the Group I Pool
      Balance (Non-PO Portion) or Group II Pool Balance (Non-PO Portion), as
      applicable (such amount, the "Undercollateralized Amount"), all amounts
      otherwise distributable (without regard to this Clause (iii)) first to the
      Class B-6 Certificates pursuant to Clause (ii) Paragraph eighteenth of
      4.01(a) above, second to the Class B-5 Certificates pursuant to Clause
      (ii) Paragraph fifteenth of 4.01(a) above, third to the Class B-4
      Certificates pursuant to Clause (ii) Paragraph twelfth of 4.01(a) above,
      fourth to the Class B-3 Certificates pursuant to Clause (ii) Paragraph
      ninth of 4.01(a) above, fifth to the Class B-2 Certificates pursuant to
      Clause (ii) Paragraph sixth 4.01(a) above and sixth to the Class B-1
      Certificates pursuant to Clause (ii) Paragraph third of 4.01(a) above
      (less any amounts used to pay any Class I-A-PO Deferred Amounts or Class
      II-A-PO Deferred Amounts).

            (c) Notwithstanding the foregoing, on each Distribution Date
occurring on or subsequent to the Cross-Over Date, (x) the Group I-A Non-PO
Principal Distribution Amount shall be distributed among the Classes of Group
I-A Certificates (other than the Class I-A-PO Certificates) and (y) the Group
II-A Non-PO Principal Distribution Amount shall be distributed among the Classes
of Group II-A Certificates (other than the Class II-A-PO Certificates) pro rata
in accordance with their outstanding Principal Balances without regard to either
the proportions or the priorities set forth in Section 4.01(b)(i) and (ii).

            (d) (i) For purposes of determining whether the Classes of Class B
Certificates are eligible to receive distributions of principal with respect to
any Distribution Date, the following tests shall apply:

            (A) if the Current Class B-1 Fractional Interest is less than the
      Original Class B-1 Fractional Interest and the Class B-1 Principal Balance
      is greater than zero, the Class B-2, Class B-3, Class B-4, Class B-5 and
      Class B-6 Certificates shall not be eligible to receive distributions of
      principal; or

            (B) if the Current Class B-2 Fractional Interest is less than the
      Original Class B-2 Fractional Interest and the Class B-2 Principal Balance
      is greater than zero, the Class B-3, Class B-4, Class B-5 and Class B-6
      Certificates shall not be eligible to receive distributions of principal;
      or

            (C) if the Current Class B-3 Fractional Interest is less than the
      Original Class B-3 Fractional Interest and the Class B-3 Principal Balance
      is greater than zero, the Class B-4, Class B-5 and Class B-6 Certificates
      shall not be eligible to receive distributions of principal; or

            (D) if the Current Class B-4 Fractional Interest is less than the
      Original Class B-4 Fractional Interest and the Class B-4 Principal Balance
      is greater than zero, the Class B-5 and Class B-6 Certificates shall not
      be eligible to receive distributions of principal; or

            (E) if the Current Class B-5 Fractional Interest is less than the
      Original Class B-5 Fractional Interest and the Class B-5 Principal Balance
      is greater than zero, the Class B-6 Certificates shall not be eligible to
      receive distributions of principal.

            (ii) Notwithstanding the foregoing, if on any Distribution Date the
aggregate distributions to Holders of the Classes of Class B Certificates
entitled to receive distributions of principal would reduce the Principal
Balances of the Classes of Class B Certificates entitled to receive
distributions of principal below zero, first the Group I Class B Prepayment
Percentage and Group II Class B Prepayment Percentage of any affected Class of
Class B Certificates for such Distribution Date beginning with the affected
Class with the lowest numerical Class designation and then, if necessary, the
Group I Class B Percentage and Group II Percentage of such Class of the Class B
Certificates for such Distribution Date shall be reduced to the respective
percentages necessary to bring the Principal Balance of such Class of Class B
Certificates to zero. The Class B Prepayment Percentages and the Class B
Percentages of the remaining Classes of Class B Certificates will be recomputed
substituting for the Group I Subordinated Prepayment Percentage and Group II
Subordinated Prepayment Percentages and Group I Subordinated Percentage and
Group II Subordinated Percentage in such computations the difference between (A)
the Group I Subordinated Prepayment Percentage or Group II Subordinated
Prepayment Percentage or Group I Subordinated Percentage or Group II
Subordinated Percentage, as the case may be, and (B) the percentages determined
in accordance with the preceding sentence necessary to bring the Principal
Balances of the affected Classes of Class B Certificates to zero; provided,
however, that if the Principal Balances of all the Classes of Class B
Certificates eligible to receive distributions of principal shall be reduced to
zero on such Distribution Date, the Group I Class B Prepayment Percentage, Group
II Class B Prepayment Percentage, Group I Class B Percentage and Group II Class
B Percentage of the Class of Class B Certificates with the lowest numerical
Class designation which would otherwise be ineligible to receive distributions
of principal in accordance with this Section shall equal the remainder of the
Group I Subordinated Prepayment Percentage and Group II Subordinated Prepayment
Percentage for such Distribution Date minus the sum of the Group I Class B
Prepayment Percentages and Group II Class B Prepayment Percentages of the
Classes of Class B Certificates having lower numerical Class designations, if
any, and the remainder of the Group I Subordinated Percentage and Group II
Subordinated Percentage for such Distribution Date minus the sum of the Group I
Class B Percentages and Group II Class B Percentages of the Classes of Class B
Certificates having lower numerical Class designations, if any, respectively.
Any entitlement of any Class of Class B Certificates to principal payments
solely pursuant to this clause (ii) shall not cause such Class to be regarded as
being eligible to receive principal distributions for the purpose of applying
the definition of its Group I Class B Percentage, Group II Class B Percentage,
Group II Class B Prepayment Percentage or Group II Class B Prepayment
Percentage.

            (e) On each Distribution Date other than the Final Distribution Date
(if such Final Distribution Date is in connection with a purchase of the assets
of the Trust Estate by the Seller), the Paying Agent shall, on behalf of the
Master Servicer, from funds remitted to it by the Master Servicer, distribute to
each Certificateholder of record on the preceding Record Date (other than as
provided in Section 9.01 respecting the final distribution to Certificateholders
or in the last paragraph of this Section 4.01(e) respecting the final
distribution in respect of any Class) either in immediately available funds by
wire transfer to the account of such Certificateholder at a bank or other entity
having appropriate facilities therefor, if such Certificateholder holds
Certificates having a Denomination at least equal to that specified in Section
11.20, and has so notified the Master Servicer or, if applicable, the Paying
Agent at least seven Business Days prior to the Distribution Date or, if such
Holder holds Certificates having, in the aggregate, a Denomination less than the
requisite minimum Denomination or if such Holder holds the Class I-A-R
Certificate or has not so notified the Paying Agent, by check mailed to such
Holder at the address of such Holder appearing in the Certificate Register, such
Holder's share of the Group I-A Distribution Amount or Group II-A Distribution
Amount, as applicable, with respect to each Class of Class A Certificates and
the Class B Distribution Amount with respect to each Class of Class B
Certificates.

            In the event that, on any Distribution Date prior to the Final
Distribution Date, the Principal Balance of any Class of Class A Certificates
(other than the Class I-A-R Certificate) or the Principal Balance of any Class
of Class B Certificates would be reduced to zero, the Master Servicer shall, as
soon as practicable after the Determination Date relating to such Distribution
Date, send a notice to the Trustee. The Trustee will then send a notice to each
Certificateholder of such Class with a copy to the Certificate Registrar,
specifying that the final distribution with respect to such Class will be made
on such Distribution Date only upon the presentation and surrender of such
Certificateholder's Certificates at the office or agency of the Trustee therein
specified; provided, however, that the failure to give such notice will not
entitle a Certificateholder to any interest beyond the interest payable with
respect to such Distribution Date in accordance with Section 4.01(a).

            (f) The Paying Agent (or if no Paying Agent is appointed by the
Master Servicer, the Master Servicer) shall withhold or cause to be withheld
such amounts as may be required by the Code (giving full effect to any
exemptions from withholding and related certifications required to be furnished
by Certificateholders and any reductions to withholding by virtue of any
bilateral tax treaties and any applicable certification required to be furnished
by Certificateholders with respect thereto) from distributions to be made to
Persons other than U.S. Persons ("Non-U.S. Persons"). Amounts withheld pursuant
to this Section 4.01(f) shall be treated as having been distributed to the
related Certificateholder for all purposes of this Agreement. For the purposes
of this paragraph, a "U.S. Person" is a citizen or resident of the United
States, a corporation or partnership (unless, in the case of a partnership,
Treasury regulations are adopted that provide otherwise) created or organized in
or under the laws of the United States, any state thereof or the District of
Columbia, including an entity treated as a corporation or partnership for
federal income tax purposes, an estate whose income is subject to United States
federal income tax regardless of its source, or a trust if a court within the
United States is able to exercise primary supervision over the administration of
such trust, and one or more such U.S. Persons have the authority to control all
substantial decisions of such trust (or, to the extent provided in applicable
Treasury regulations, certain trusts in existence on August 20, 1996 which are
eligible to elect to be treated as U.S. Persons).

            SECTION 4.02      ALLOCATION OF REALIZED LOSSES.

            (a) With respect to any Distribution Date, the principal portion of
Realized Losses (other than Debt Service Reductions, Excess Special Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses) occurring with respect
to Group I Mortgage Loans and Group II Mortgage Loans will be allocated as
follows:

            first, to the Class B-6 Certificates until the Class B-6 Principal
Balance has been reduced to zero;

            second, to the Class B-5 Certificates until the Class B-5 Principal
Balance has been reduced to zero;

            third, to the Class B-4 Certificates until the Class B-4 Principal
Balance has been reduced to zero;

            fourth, to the Class B-3 Certificates until the Class B-3 Principal
Balance has been reduced to zero;

            fifth, to the Class B-2 Certificates until the Class B-2 Principal
Balance has been reduced to zero;

            sixth, to the Class B-1 Certificates until the Class B-1 Principal
Balance has been reduced to zero; and

            seventh, (i) with respect to such losses occurring with respect to
Group I Mortgage Loans, concurrently, to the Group I-A Certificates (other than
the Class I-A-PO Certificates) and Class I-A-PO Certificates, pro rata, based on
the Non-PO Fraction and the PO Fraction of such Mortgage Loans, respectively,
and (ii) with respect to such losses occurring with respect to Group II Mortgage
Loans, concurrently, to the Group II-A Certificates (other than the Class
II-A-PO Certificates) and Class II-A-PO Certificates, pro rata, based on the
Non-PO Fraction and the PO Fraction of such Mortgage Loans, respectively.

            This allocation of Realized Losses will be effected through the
reduction of the applicable Class's Principal Balance.

            (b) With respect to any Distribution Date, the principal portion of
Excess Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses
occurring with respect to any Group I Mortgage Loan or Group II Mortgage Loan
allocable to the Class I-A-PO or Class II-A-PO Certificates, respectively, will
equal the product of the amount of any such principal loss and the PO Fraction
for such Mortgage Loan. The principal portion of any Excess Special Hazard
Losses, Excess Fraud Losses and Excess Bankruptcy Losses with respect to any
Mortgage Loan in Loan Group I or Loan Group II, respectively, remaining after
allocation to the Class I-A-PO or Class II-A-PO Certificates, as applicable, in
accordance with the preceding sentence shall be allocated pro rata among the
Group I-A Certificates (other than the Class I-A-PO Certificates) or Group II-A
Certificates (other than the Class II-A-PO Certificates), respectively, and each
Class of Class B Certificates based on the Group I-A Non-PO Principal Balance or
Group II-A Non-PO Principal Balance in the case of such Group I-A Certificates
or Group II-A Certificates and the Group I Apportioned Principal Balance or
Group II Apportioned Principal Balance in the case of each Class of Class B
Certificates, respectively. Any such loss allocated to the Group I-A
Certificates shall be allocated on the subsequent Determination Date to the
outstanding Classes of Group I-A Certificates (other than the Class I-A-PO
Certificates) in accordance with the Group I-A Loss Percentages as of such
Determination Date and any such loss allocated to the Group II-A Certificates
shall be allocated on the subsequent Determination Date to the outstanding
Classes of Group II-A Certificates (other than the Class II-A-PO Certificates)
in accordance with the Group II-A Loss Percentages as of such Determination
Date.

            (c) Any Realized Losses allocated to a Class of Class A Certificates
or Class B Certificates pursuant to Section 4.02(a) or Section 4.02(b) shall be
allocated among the Certificates of such Class based on their Percentage
Interests.

            (d) In the event that there is a Recovery of an amount in respect of
principal of a Mortgage Loan of a Loan Group which had previously been allocated
as a Realized Loss to any Classes of Class A Certificates or any Classes of
Class B Certificates, each outstanding Class to which such Realized Loss had
previously been allocated shall be entitled to its share (with respect to the
Class I-A-PO and Class II-A-PO Certificates, based on the PO Fraction of such
Mortgage Loan and, with respect to the Class A Certificates (other than the
Class I-A-PO and Class II-A-PO Certificates) and Class B Certificates, based on
their pro rata share of the Non-PO Fraction of such Mortgage Loan) of such
Recovery up to the amount of such Realized Loss previously allocated to such
Class on the Distribution Date in the month following the month in which such
recovery is received. When the Principal Balance of a Class of Certificates has
been reduced to zero, such Class shall not be entitled to any share of such
Recovery. In the event that the amount of such Recovery exceeds the amount of
such Recovery allocated to each outstanding Class in accordance with the
preceding provisions, each outstanding Class shall be entitled to its pro rata
share (determined as described above) of such excess up to the amount of any
unrecovered Realized Loss previously allocated to such Class. Notwithstanding
the foregoing provisions, but subject to the following proviso, if such Recovery
occurs within two years of the realization of such loss and (i) is the result of
an event that would have given rise to the repurchase of the related Mortgage
Loan by the Seller pursuant to Section 2.02 or 2.03, or (ii) represents in whole
or part funds which the applicable Servicer had received in respect of a
Liquidated Loan but failed to remit to the Certificate Account on or prior to
the Business Day preceding the Distribution Date following the Applicable
Unscheduled Principal Receipt Period in which the Mortgage Loan became a
Liquidated Loan, such Recovery may, at the sole discretion of the Master
Servicer, be treated as a repurchase or an Unscheduled Principal Receipt with
respect to such Mortgage Loan, as the case may be, the Realized Loss previously
recognized may be reversed and treated for all subsequent purposes as if it had
never occurred and the Master Servicer may make such adjustments to interest or
principal distributions on the Certificates and to the principal balances of the
Certificates as the Master Servicer in its good faith judgment and sole
discretion deems necessary or desirable to effectuate the reversal of the
Realized Loss and the treatment of such amount as a repurchase or as an
Unscheduled Principal Receipt, as the case may be; provided that such actions do
not result in the aggregate distributions made in respect of each Class of
Certificates whose principal balances were previously reduced as a result of
such Realized Loss being less than such Class would have received if such
Recovery had been deposited in the Certificate Account on or prior to the
Business Day preceding the Distribution Date following the Applicable
Unscheduled Principal Receipt Period in which the Mortgage Loan became a
Liquidated Loan.

            (e) The interest portion of Excess Special Hazard Losses, Excess
Fraud Losses and Excess Bankruptcy Losses occurring with respect to any Group I
Mortgage Loan or Group II Mortgage Loan shall be allocated among (i) each Class
of Group I-A Certificates or Group II-A Certificates, as applicable, and (ii)
each Class of Class B Certificates, pro rata based upon each Class's Group I
Apportioned Interest Percentage or Group II Apportioned Interest Percentage, as
applicable for the related Distribution Date. In addition, after the Class B
Principal Balance has been reduced to zero, the interest portion of Realized
Losses (other than Excess Special Hazard Losses, Excess Fraud Losses and Excess
Bankruptcy Losses) occurring with respect to any Group I Mortgage Loan or Group
II Mortgage Loan will be allocated among the outstanding Classes of Group I-A
Certificates and Group II-A Certificates, respectively, based on their Group I-A
Interest Percentages and Group II-A Interest Percentages.

            (f) Realized Losses allocated in accordance with this Section 4.02
will be allocated on the Determination Date in the second month following the
month in which such loss was incurred with respect to the preceding Distribution
Date.

            SECTION 4.03      PAYING AGENT.

            (a) The Master Servicer hereby appoints the Trustee as initial
Paying Agent to make distributions to Certificateholders and to forward to
Certificateholders the periodic statements and the annual statements required by
Section 4.04 as agent of the Master Servicer.

            The Master Servicer may, at any time, remove or replace the Paying
Agent.

            The Master Servicer shall cause any Paying Agent that is not the
Trustee to execute and deliver to the Trustee an instrument in which such Paying
Agent agrees with the Trustee that such Paying Agent shall:

               (i) hold all amounts remitted to it by the Master Servicer for
      distribution to Certificateholders in trust for the benefit of
      Certificateholders until such amounts are distributed to
      Certificateholders or otherwise disposed of as herein provided;

               (ii) give the Trustee notice of any default by the Master
      Servicer in remitting any required amount; and

               (iii) at any time during the continuance of any such default,
      upon the written request of the Trustee, forthwith pay to the Trustee all
      amounts held in trust by such Paying Agent.

            (b) The Paying Agent shall establish and maintain a Payment Account,
which shall be a separate trust account and an Eligible Account, in which the
Master Servicer shall cause to be deposited from funds in the Certificate
Account or, to the extent required hereunder, from its own funds (i) at or
before 10:00 a.m., New York time, on the Business Day preceding each
Distribution Date, by wire transfer of immediately available funds, any Periodic
Advance for such Distribution Date, pursuant to Section 3.03 and (ii) at or
before 10:00 a.m., New York time, on the Business Day preceding each
Distribution Date, by wire transfer of immediately available funds, (a) an
amount equal to the Pool Distribution Amount, (b) Group I Net Foreclosure
Profits and Group II Net Foreclosure Profits, if any, with respect to such
Distribution Date and (c) the amount of any recovery in respect of a Realized
Loss. The Master Servicer may cause the Paying Agent to invest the funds in the
Payment Account. Any such investment shall be in Eligible Investments, which
shall mature not later than the Business Day preceding the related Distribution
Date (unless the Eligible Investments are obligations of the Trustee, in which
case such Eligible Investments shall mature not later than the Distribution
Date), and shall not be sold or disposed of prior to maturity. All income and
gain realized from any such investment shall be for the benefit of the Master
Servicer and shall be subject to its withdrawal or order from time to time. The
amount of any losses incurred in respect of any such investments shall be
deposited in the Payment Account by the Master Servicer out of its own funds
immediately as realized. The Paying Agent may withdraw from the Payment Account
any amount deposited in the Payment Account that was not required to be
deposited therein and may clear and terminate the Payment Account pursuant to
Section 9.01.

            SECTION 4.04      STATEMENTS TO CERTIFICATEHOLDERS;
                              REPORT TO THE TRUSTEE AND THE SELLER.

            Concurrently with each distribution pursuant to Section 4.01(e), the
Master Servicer, or the Paying Agent appointed by the Master Servicer (upon
receipt of such statement from the Master Servicer), shall forward or cause to
be forwarded by mail to each Holder of a Certificate and the Seller a statement
setting forth:

               (i) the amount of such distribution to Holders of each Class of
      Class A Certificates allocable to principal, separately identifying the
      aggregate amount of any Unscheduled Principal Receipts included therein;

               (ii) (a) the amount of such distribution to Holders of each Class
      of Class A Certificates allocable to interest, (b) the amount of the
      Current Group I-A Interest Distribution Amount allocated to each Class of
      Group I-A Certificates and Current Group II-A Interest Distribution Amount
      allocated to each Class of Group II-A Certificates, (c) any Group I
      Interest Shortfall Amounts or Group II Interest Shortfall Amounts arising
      with respect to such Distribution Date and any remaining Class A Unpaid
      Interest Shortfall with respect to each Class after giving effect to such
      distribution, (d) the amount of any Non-Supported Interest Shortfall
      allocated to each Class of Class A Certificates for such Distribution Date
      and (e) the interest portion of Excess Special Hazard Losses, Excess Fraud
      Losses and Excess Bankruptcy Losses allocated to each Class for such
      Distribution Date;

               (iii) the amount of such distribution to Holders of each Class of
      Class B Certificates allocable to principal, separately identifying the
      aggregate amount of any Unscheduled Principal Receipts included therein;

               (iv) (a) the amount of such distribution to Holders of each Class
      of Class B Certificates allocable to interest, (b) the amount of the
      Current Class B Interest Distribution Amount allocated to each Class of
      Class B Certificates, (c) any Class B Interest Shortfall Amounts arising
      with respect to such Distribution Date and any remaining Class B Unpaid
      Interest Shortfall with respect to each Class of Class B Certificates
      after giving effect to such distribution, (d) the amount of any
      Non-Supported Interest Shortfall allocated to each Class of Class B
      Certificates for such Distribution Date, and (e) the interest portion of
      Excess Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy
      Losses allocated to each Class of Class B Certificates for such
      Distribution Date;

            (v)   the  amount of any  Periodic  Advance by any  Servicer,  the
Master  Servicer or the Trustee  pursuant to the Servicing  Agreements or this
Agreement;

               (vi) the number of Group I Mortgage Loans and Group II
      Mortgage Loans outstanding as of the preceding Determination Date;

               (vii) the Group I-A Principal Balance, the Group II-A Principal
      Balance, the Principal Balance of each Class of Class A Certificates, the
      Class B Principal Balance and the Principal Balance of each Class of Class
      B Certificates as of the following Determination Date after giving effect
      to the distributions of principal made, and the principal portion of
      Realized Losses, if any, allocated with respect to such Distribution Date;

               (viii) the Group I Adjusted Pool Amount, the Group II Adjusted
      Pool Amount, the Group II Adjusted Pool Amount (PO Portion), the Group II
      Adjusted Pool Amount (PO Portion), the Group I Pool Scheduled Principal
      Balance of the Group I Mortgage Loans for such Distribution Date, the
      Group II Pool Scheduled Principal Balance of the Group II Mortgage Loans
      for such Distribution Date, the aggregate Scheduled Principal Balance of
      the Group I Discount Mortgage Loans for such Distribution Date and (ii)
      the aggregate Scheduled Principal Balance of the Group II Discount
      Mortgage Loans for such Distribution Date;

               (ix) the aggregate Scheduled Principal Balances of the Group I
      Mortgage Loans and Group II Mortgage Loans serviced by Norwest Mortgage
      and, collectively, by the Other Servicers as of such Distribution Date;

               (x)the Group I-A Percentage and Group II-A Percentage for the
      following Distribution Date (without giving effect to Unscheduled
      Principal Receipts received after the Applicable Unscheduled Principal
      Receipt Period for the current Distribution Date which are applied by a
      Servicer during such Applicable Unscheduled Principal Receipt Period);

               (xi) the Group I-A Prepayment Percentage and Group II-A
      Prepayment Percentage for the following Distribution Date (without giving
      effect to Unscheduled Principal Receipts received after the Applicable
      Unscheduled Principal Receipt Period for the current Distribution Date
      which are applied by a Servicer during such Applicable Unscheduled
      Principal Receipt Period);

               (xii) the Group I Class B-1, Class B-2, Class B-3, Class B-4,
      Class B-5 and Class B-6 Percentages and Group II Class B-1, Class B-2,
      Class B-3, Class B-4, Class B-5 and Class B-6 Percentages for the
      following Distribution Date (without giving effect to Unscheduled
      Principal Receipts received after the Applicable Unscheduled Principal
      Receipt Period for the current Distribution Date which are applied by a
      Servicer during such Applicable Unscheduled Principal Receipt Period);

               (xiii) the Group I Class B-1, Class B-2, Class B-3, Class B-4,
      Class B-5 and Class B-6 Prepayment Percentages and Group II Class B-1,
      Class B-2, Class B-3, Class B-4, Class B-5 and Class B-6 Prepayment
      Percentages for the following Distribution Date (without giving effect to
      Unscheduled Principal Receipts received after the Applicable Unscheduled
      Principal Receipt Period for the current Distribution Date which are
      applied by a Servicer during such Applicable Unscheduled Principal Receipt
      Period);

               (xiv) the number and aggregate principal balances of Group I
      Mortgage Loans and Group II Mortgage Loans delinquent (a) one month, (b)
      two months and (c) three months or more;

               (xv) the number and aggregate principal balances of the Group I
      Mortgage Loans and Group II Mortgage Loans in foreclosure as of the
      preceding Determination Date;

               (xvi) the book value of any real estate with respect to Group I
      Mortgage Loans or Group II Mortgage Loans acquired through foreclosure or
      grant of a deed in lieu of foreclosure;

               (xvii) the amount of the remaining Special Hazard Loss Amount,
      Fraud Loss Amount and Bankruptcy Loss Amount as of the close of business
      on such Distribution Date;

               (xviii) the principal and interest portions of Realized Losses
      with respect to Group I Mortgage Loans and Group II Mortgage Loans
      allocated as of such Distribution Date and the amount of such Realized
      Losses constituting Excess Special Hazard Losses, Excess Fraud Losses or
      Excess Bankruptcy Losses with respect to Group I Mortgage Loans and Group
      II Mortgage Loans;

               (xix) the aggregate amount of Bankruptcy Losses allocated to each
      Class of Class B Certificates in accordance with Section 4.02(a) since the
      Relevant Anniversary;

               (xx) the amount by which the Principal Balance of each Class of
      Class B Certificates has been reduced as a result of Realized Losses with
      respect to Group I Mortgage Loans and Group II Mortgage Loans allocated as
      of such Distribution Date;

               (xxi) the unpaid principal balance of any Group I Mortgage Loan
      or Group II Mortgage Loan as to which the Servicer of such Mortgage Loan
      has determined not to foreclose because it believes the related Mortgaged
      Property may be contaminated with or affected by hazardous wastes or
      hazardous substances;

               (xxii) the amount of the aggregate Servicing Fees and Master
      Servicing Fees paid (and not previously reported) with respect to the
      related Distribution Date and the amount by which the aggregate Available
      Master Servicer Compensation has been reduced by the Prepayment Interest
      Shortfall for the related Distribution Date;

               (xxiii)  the Class  I-A-PO  Deferred  Amount and Class  II-A-PO
      Deferred Amount, if any; and

               (xxiv) such other customary information as the Master Servicer
      deems necessary or desirable to enable Certificateholders to prepare their
      tax returns;

      and shall deliver a copy of each type of statement to the Trustee, who
shall provide copies thereof to Persons making written request therefor at the
Corporate Trust Office.

            In the case of information furnished with respect to a Class of
Class A Certificates pursuant to clauses (i) and (ii) above and with respect to
a Class of Class B Certificates pursuant to clauses (iii) and (iv) above, the
amounts shall be expressed as a dollar amount per Class A or Class B Certificate
(other than the Class I-A-R Certificate) with a $1,000 Denomination, and as a
dollar amount per Class I-A-R Certificate with a $100 Denomination.

            Within a reasonable period of time after the end of each calendar
year, the Master Servicer shall furnish or cause to be furnished to each Person
who at any time during the calendar year was the Holder of a Certificate a
statement containing the information set forth in clauses (i) and (ii)(a) above
in the case of a Class A Certificateholder and the information set forth in
clauses (iii) and (iv)(a) above in the case of a Class B Certificateholder
aggregated for such calendar year or applicable portion thereof during which
such Person was a Certificateholder. Such obligation of the Master Servicer
shall be deemed to have been satisfied to the extent that substantially
comparable information shall be provided by the Master Servicer pursuant to any
requirements of the Code from time to time in force.

            Prior to the close of business on the third Business Day preceding
each Distribution Date, the Master Servicer shall furnish a statement to the
Trustee, any Paying Agent and the Seller (the information in such statement to
be made available to Certificateholders by the Master Servicer on written
request) setting forth the Group I-A Distribution Amount or Group II-A
Distribution Amount, as applicable, with respect to each Class of Class A
Certificates and the Class B Distribution Amount with respect to each Class of
Class B Certificates. The determination by the Master Servicer of such amounts
shall, in the absence of obvious error, be presumptively deemed to be correct
for all purposes hereunder and the Trustee and the Paying Agent shall be
protected in relying upon the same without any independent check or
verification.

            In addition to the reports required pursuant to this Section 4.04,
the Master Servicer shall make available upon request to each Holder and each
proposed transferee of a Class I-A-PO, Class II-A-PO, Class B-4, Class B-5 or
Class B-6 Certificate such additional information, if any, as may be required to
permit the proposed transfer to be effected pursuant to Rule 144A.

            SECTION 4.05      REPORTS TO MORTGAGORS AND THE INTERNAL REVENUE
                              SERVICE.

            The Master Servicer shall, in each year beginning after the Cut-Off
Date, make the reports of foreclosures and abandonments of any Mortgaged
Property as required by Code Section 6050J. In order to facilitate this
reporting process, the Master Servicer shall request that each Servicer, on or
before January 15th of each year, shall provide to the Internal Revenue Service,
with copies to the Master Servicer, reports relating to each instance occurring
during the previous calendar year in which such Servicer (i) on behalf of the
Trustee acquires an interest in a Mortgaged Property through foreclosure or
other comparable conversion in full or partial satisfaction of a Mortgage Loan
serviced by such Servicer, or (ii) knows or has reason to know that a Mortgaged
Property has been abandoned. Reports from the Servicers shall be in form and
substance sufficient to meet the reporting requirements imposed by Code Section
6050J. In addition, each Servicer shall provide the Master Servicer with
sufficient information to allow the Master Servicer to, for each year ending
after the Cut-Off Date, provide, or cause to be provided, to the Internal
Revenue Service and the Mortgagors such information as is required under Code
Sections 6050H (regarding payment of interest) and 6050P (regarding cancellation
of indebtedness).

            SECTION 4.06      CALCULATION OF AMOUNTS; BINDING EFFECT OF
                              INTERPRETATIONS AND ACTIONS OF MASTER SERVICER.

            The Master Servicer will compute the amount of all distributions to
be made on the Certificates and all losses to be allocated to the Certificates.
In the event that the Master Servicer concludes that any ambiguity or
uncertainty exists in any provisions of this Agreement relating to distributions
to be made on the Certificates or the allocation of losses to the Certificates,
the interpretation of such provisions and any actions taken by the Master
Servicer in good faith to implement such interpretation shall be binding upon
Certificateholders.


<PAGE>


                                    ARTICLE V

                                THE CERTIFICATES

            SECTION 5.01      THE CERTIFICATES.

            (a) The Class A and Class B Certificates shall be issued only in
minimum Denominations of a Single Certificate and, except for the Class I-A-PO,
Class I-A-R and Class II-A-PO Certificates, integral multiples of $1,000 in
excess thereof (except, if necessary, for one Certificate of each Class (other
than the Class I-A-R Certificates) that evidences one Single Certificate plus
such additional principal portion as is required in order for all Certificates
of such Class to equal the aggregate Original Principal Balance of such Class,
as the case may be), and shall be substantially in the respective forms set
forth as Exhibits A-I-A-1, A-I-A-2, A-I-A-3, A-I-A-4, A-I-A-5, A-I-A-6,
A-I-A-PO, A-I-A-R, A-II-A-1, A-II-A-2, A-II-A-PO, B-1, B-2, B-3, B-4, B-5, B-6
and C (reverse side of Certificates) hereto. On original issue the Certificates
shall be executed and delivered by the Trustee to or upon the order of the
Seller upon receipt by the Trustee or the Custodian of the documents specified
in Section 2.01. The aggregate principal portion evidenced by the Class A and
Class B Certificates shall be the sum of the amounts specifically set forth in
the respective Certificates. The Certificates shall be executed by manual or
facsimile signature on behalf of the Trustee by any Responsible Officer thereof.
Certificates bearing the manual or facsimile signatures of individuals who were
at any time the proper officers of the Trustee shall bind the Trustee
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Certificates or did not
hold such offices at the date of such Certificates. No Certificate shall be
entitled to any benefit under this Agreement, or be valid for any purpose,
unless manually countersigned by a Responsible Officer of the Trustee, or unless
there appears on such Certificate a certificate of authentication executed by
the Authenticating Agent by manual signature, and such countersignature or
certificate upon a Certificate shall be conclusive evidence, and the only
evidence, that such Certificate has been duly authenticated and delivered
hereunder. All Certificates shall be dated the date of their authentication.

            Until such time as Definitive Certificates are issued pursuant to
Section 5.07, each Book-Entry Certificate shall bear the following legend:

            "Unless this certificate is presented by an authorized
representative of [the Clearing Agency] to the Seller or its agent for
registration of transfer, exchange or payment, and any certificate issued is
registered in the name of [the Clearing Agency] or such other name as requested
by an authorized representative of [the Clearing Agency] and any payment is made
to [the Clearing Agency], any transfer, pledge or other use hereof for value or
otherwise by or to any person is wrongful since the registered owner hereof,
[the Clearing Agency], has an interest herein."

            (b) Upon original issuance, the Book-Entry Certificates shall be
issued in the form of one or more typewritten certificates, to be delivered to
The Depository Trust Company, the initial Clearing Agency, by, or on behalf of,
the Seller or to, and deposited with the Certificate Custodian, on behalf of The
Depository Trust Company, if directed to do so pursuant instructions from The
Depository Trust Company.. Such Certificates shall initially be registered in
the Certificate Register in the name of the nominee of the initial Clearing
Agency, and no Beneficial Owner will receive a definitive certificate
representing such Beneficial Owner's interest in the Book-Entry Certificates,
except as provided in Section 5.07. Unless and until definitive, fully
registered certificates ("Definitive Certificates") have been issued to
Beneficial Owners pursuant to Section 5.07:

               (i) the provisions of this Section 5.01(b) shall be in full
      force and effect;

               (ii) the Seller, the Master Servicer, the Certificate Registrar
      and the Trustee may deal with the Clearing Agency for all purposes
      (including the making of distributions on the Book-Entry Certificates and
      the taking of actions by the Holders of Book-Entry Certificates) as the
      authorized representative of the Beneficial Owners;

               (iii) to the extent that the provisions of this Section 5.01(b)
      conflict with any other provisions of this Agreement, the provisions of
      this Section 5.01(b) shall control;

               (iv) the rights of Beneficial Owners shall be exercised only
      through the Clearing Agency and shall be limited to those established by
      law, the rules, regulations and procedures of the Clearing Agency and
      agreements between such Beneficial Owners and the Clearing Agency and/or
      the Clearing Agency Participants, and all references in this Agreement to
      actions by Certificateholders shall, with respect to the Book-Entry
      Certificates, refer to actions taken by the Clearing Agency upon
      instructions from the Clearing Agency Participants, and all references in
      this Agreement to distributions, notices, reports and statements to
      Certificateholders shall, with respect to the Book-Entry Certificates,
      refer to distributions, notices, reports and statements to the Clearing
      Agency or its nominee, as registered holder of the Book-Entry
      Certificates, as the case may be, for distribution to Beneficial Owners in
      accordance with the procedures of the Clearing Agency; and

               (v) the initial Clearing Agency will make book-entry transfers
      among the Clearing Agency Participants and receive and transmit
      distributions of principal and interest on the Certificates to the
      Clearing Agency Participants, for distribution by such Clearing Agency
      Participants to the Beneficial Owners or their nominees.

            For purposes of any provision of this Agreement requiring or
permitting actions with the consent of, or at the direction of, Holders of
Book-Entry Certificates evidencing specified Voting Interests, such direction or
consent shall be given by Beneficial Owners having the requisite Voting
Interests, acting through the Clearing Agency.

            Unless and until Definitive Certificates have been issued to
Beneficial Owners pursuant to Section 5.07, copies of the reports or statements
referred to in Section 4.04 shall be available to Beneficial Owners upon written
request to the Trustee at the Corporate Trust Office.

            SECTION 5.02      REGISTRATION OF CERTIFICATES.

            (a) The Trustee shall cause to be kept at one of the offices or
agencies to be maintained in accordance with the provisions of Section 5.06 a
Certificate Register in which, subject to such reasonable regulations as it may
prescribe, the Trustee shall provide for the registration of Certificates and of
transfers and exchanges of Certificates as herein provided. The Trustee shall
act as, or shall appoint, a Certificate Registrar for the purpose of registering
Certificates and transfers and exchanges of Certificates as herein provided.

            Upon surrender for registration of transfer of any Certificate at
any office or agency maintained for such purpose pursuant to Section 5.06 (and
subject to the provisions of this Section 5.02) the Trustee shall execute, and
shall date, authenticate (or cause the Authenticating Agent to authenticate) and
deliver, in the name of the designated transferee or transferees, one or more
new Certificates of a like aggregate principal portion or Percentage Interest
and of the same Class.

            At the option of the Certificateholders, Certificates may be
exchanged for other Certificates of authorized Denominations of a like aggregate
principal portion or Percentage Interest and of the same Class upon surrender of
the Certificates to be exchanged at any such office or agency. Whenever any
Certificates are so surrendered for exchange, the Trustee shall execute, and
shall date, authenticate (or cause the Authenticating Agent to authenticate) and
deliver, the Certificates which the Certificateholder making the exchange is
entitled to receive. Every Certificate presented or surrendered for transfer or
exchange shall (if so required by the Certificate Registrar or the Trustee) be
duly endorsed by, or be accompanied by a written instrument of transfer in form
satisfactory to the Certificate Registrar, duly executed by the Holder thereof
or his attorney duly authorized in writing.

            No service charge shall be made for any transfer or exchange of
Certificates, but the Trustee or the Certificate Registrar may require payment
of a sum sufficient to cover any tax or governmental charge that may be imposed
in connection with any transfer or exchange of Certificates.

            All Certificates surrendered for transfer and exchange shall be
canceled by the Certificate Registrar, the Trustee or the Authenticating Agent
in accordance with their standard procedures.

            (b) No transfer of a Class I-A-PO, Class II-A-PO, Class B-4, Class
B-5 or Class B-6 Certificate shall be made unless the registration requirements
of the Securities Act of 1933, as amended, and any applicable State securities
laws are complied with, or such transfer is exempt from the registration
requirements under said Act and laws. In the event that a transfer is to be made
in reliance upon an exemption from said Act or laws, (i) unless such transfer is
made in reliance on Rule 144A, the Trustee or the Seller may, if such transfer
is to be made within three years after the later of (i) the date of the initial
sale of Certificates or (ii) the last date on which the Seller or any affiliate
thereof was a Holder of the Certificates proposed to be transferred, require a
Class I-A-PO, Class II-A-PO, Class B-4, Class B-5 or Class B-6 Certificateholder
to deliver a written Opinion of Counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller, to the effect that such transfer may
be made pursuant to an exemption, describing the applicable exemption and the
basis therefor, from said Act and laws or is being made pursuant to said Act and
laws, which Opinion of Counsel shall not be an expense of the Trustee, the
Seller or the Master Servicer, and (ii) the Trustee shall require the transferee
(other than an affiliate of the Seller on the Closing Date) to execute an
investment letter in the form of Exhibit J hereto certifying to the Seller and
the Trustee the facts surrounding such transfer, which investment letter shall
not be an expense of the Trustee, the Seller or the Master Servicer. The Holder
of a Class I-A-PO, Class II-A-PO, Class B-4, Class B-5 or Class B-6 Certificate
desiring to effect such transfer shall, and does hereby agree to, indemnify the
Trustee, the Seller, the Master Servicer and any Paying Agent acting on behalf
of the Trustee against any liability that may result if the transfer is not so
exempt or is not made in accordance with such federal and state laws. Neither
the Seller nor the Trustee is under an obligation to register the Class I-A-PO,
Class II-A-PO, Class B-4, Class B-5 or Class B-6 Certificates under said Act or
any other securities law.

            (c) No transfer of a Class I-A-PO, Class II-A-PO or Class B
Certificate shall be made (other than the transfer of the Class I-A-PO and Class
II-A-PO Certificates to an affiliate of the Seller on the Closing Date) unless
the Trustee shall have received (i) a representation letter from the transferee
in the form of Exhibit J hereto, in the case of a Class I-A-PO, Class II-A-PO,
Class B-4, Class B-5 or Class B-6 Certificate, or in the form of Exhibit K
hereto, in the case of a Class B-1, Class B-2 or Class B-3 Certificate, to the
effect that either (a) such transferee is not an employee benefit plan or other
retirement arrangement subject to Title I of ERISA or Code Section 4975, or a
governmental plan, as defined in Section 3(32) of ERISA, subject to any federal,
state or local law ("Similar Law") which is to a material extent similar to the
foregoing provisions of ERISA or the Code (collectively, a "Plan") and is not a
person acting on behalf of or using the assets of any such Plan, which
representation letter shall not be an expense of the Trustee, the Seller or the
Master Servicer or (b) with respect to the Class B Certificates only, if such
transferee is an insurance company, (A) the source of funds used to purchase the
Class B Certificate is an "insurance company general account" (as such term is
defined in Section V(e) of Prohibited Transaction Class Exemption 95-60 ("PTE
95-60"), 60 Fed. Reg. 35925 (July 12, 1995)), (B) there is no Plan with respect
to which the amount of such general account's reserves and liabilities for the
contract(s) held by or on behalf of such Plan and all other Plans maintained by
the same employer (or affiliate thereof as defined in Section V(a)(1) of PTE
95-60) or by the same employee organization exceeds 10% of the total of all
reserves and liabilities of such general account (as such amounts are determined
under Section I(a) of PTE 95-60) at the date of acquisition and (C) the purchase
and holding of such Class B Certificates are covered by Sections I and III of
PTE 95-60 or (ii) in the case of any such Class I-A-PO, Class II-A-PO or Class B
Certificate presented for registration in the name of a Plan, or a trustee of
any such Plan, (A) an Opinion of Counsel satisfactory to the Trustee and the
Seller to the effect that the purchase or holding of such Class I-A-PO, Class
II-A-PO or Class B Certificate will not result in the assets of the Trust Estate
being deemed to be "plan assets" and subject to the prohibited transaction
provisions of ERISA, the Code or Similar Law and will not subject the Trustee,
the Seller or the Master Servicer to any obligation in addition to those
undertaken in this Agreement, which Opinion of Counsel shall not be an expense
of the Trustee, the Seller or the Master Servicer and (B) such other opinions of
counsel, officer's certificates and agreements as the Seller or the Master
Servicer may require in connection with such transfer, which opinions of
counsel, officers' certificates and agreements shall not be an expense of the
Trustee, the Seller or the Master Servicer. The Class I-A-PO, Class II-A-PO and
Class B Certificates shall bear a legend referring to the foregoing restrictions
contained in this paragraph.

            (d) No legal or beneficial interest in all or any portion of the
Class I-A-R Certificate may be transferred directly or indirectly to a
"disqualified organization" within the meaning of Code Section 860E(e)(5) or an
agent of a disqualified organization (including a broker, nominee, or
middleman), to a Plan or a Person acting on behalf of or investing the assets of
a Plan (such Plan or Person, an "ERISA Prohibited Holder") or to an individual,
corporation, partnership or other person unless such transferee (i) is not a
Non-U.S. Person or (ii) is a Non-U.S. Person that holds the Class I-A-R
Certificate in connection with the conduct of a trade or business within the
United States and has furnished the transferor and the Trustee with an effective
Internal Revenue Service Form 4224 or (iii) is a Non-U.S. Person that has
delivered to both the transferor and the Trustee an opinion of a nationally
recognized tax counsel to the effect that the transfer of the Class I-A-R
Certificate to it is in accordance with the requirements of the Code and the
regulations promulgated thereunder and that such transfer of the Class I-A-R
Certificate will not be disregarded for federal income tax purposes (any such
person who is not covered by clauses (i), (ii) or (iii) above being referred to
herein as a "Non-permitted Foreign Holder"), and any such purported transfer
shall be void and have no effect. The Trustee shall not execute, and shall not
authenticate (or cause the Authenticating Agent to authenticate) and deliver, a
new Class I-A-R Certificate in connection with any such transfer to a
disqualified organization or agent thereof (including a broker, nominee or
middleman), an ERISA Prohibited Holder or a Non-permitted Foreign Holder, and
neither the Certificate Registrar nor the Trustee shall accept a surrender for
transfer or registration of transfer, or register the transfer of, the Class
I-A-R Certificate, unless the transferor shall have provided to the Trustee an
affidavit, substantially in the form attached as Exhibit H hereto, signed by the
transferee, to the effect that the transferee is not such a disqualified
organization, an agent (including a broker, nominee, or middleman) for any
entity as to which the transferee has not received a substantially similar
affidavit, an ERISA Prohibited Holder or a Non-permitted Foreign Holder, which
affidavit shall contain the consent of the transferee to any such amendments of
this Agreement as may be required to further effectuate the foregoing
restrictions on transfer of the Class I-A-R Certificate to disqualified
organizations, ERISA Prohibited Holders or Non-permitted Foreign Holders. Such
affidavit shall also contain the statement of the transferee that (i) the
transferee has historically paid its debts as they have come due and intends to
do so in the future, (ii) the transferee understands that it may incur
liabilities in excess of cash flows generated by the residual interest, (iii)
the transferee intends to pay taxes associated with holding the residual
interest as they become due and (iv) the transferee will not transfer the Class
I-A-R Certificate to any Person who does not provide an affidavit substantially
in the form attached as Exhibit H hereto.

            The affidavit described in the preceding paragraph, if not executed
in connection with the initial issuance of the Class I-A-R Certificate, shall be
accompanied by a written statement in the form attached as Exhibit I hereto,
signed by the transferor, to the effect that as of the time of the transfer, the
transferor has no actual knowledge that the transferee is a disqualified
organization, ERISA Prohibited Holder or Non-permitted Foreign Holder, and has
no knowledge or reason to know that the statements made by the transferee with
respect to clauses (i) and (iii) of the last sentence of the preceding paragraph
are not true. The Class I-A-R Certificate shall bear a legend referring to the
foregoing restrictions contained in this paragraph and the preceding paragraph.

            Upon notice to the Master Servicer that any legal or beneficial
interest in any portion of the Class I-A-R Certificate has been transferred,
directly or indirectly, to a disqualified organization or agent thereof
(including a broker, nominee, or middleman) in contravention of the foregoing
restrictions, (i) such transferee shall be deemed to hold the Class I-A-R
Certificate in constructive trust for the last transferor who was not a
disqualified organization or agent thereof, and such transferor shall be
restored as the owner of the Class I-A-R Certificate as completely as if such
transfer had never occurred, provided that the Master Servicer may, but is not
required to, recover any distributions made to such transferee with respect to
the Class I-A-R Certificate, and (ii) the Master Servicer agrees to furnish to
the Internal Revenue Service and to any transferor of the Class I-A-R
Certificate or such agent (within 60 days of the request therefor by the
transferor or agent) such information necessary to the application of Code
Section 860E(e) as may be required by the Code, including but not limited to the
present value of the total anticipated excess inclusions with respect to the
Class I-A-R Certificate (or portion thereof) for periods after such transfer. At
the election of the Master Servicer, the cost to the Master Servicer of
computing and furnishing such information may be charged to the transferor or
such agent referred to above; however, the Master Servicer shall in no event be
excused from furnishing such information.

            SECTION 5.03      MUTILATED, DESTROYED, LOST OR STOLEN
                              CERTIFICATES.

            If (i) any mutilated Certificate is surrendered to the Trustee or
the Authenticating Agent, or the Trustee or the Authenticating Agent receives
evidence to its satisfaction of the destruction, loss or theft of any
Certificate, and (ii) there is delivered to the Trustee or the Authenticating
Agent such security or indemnity as may be required by them to hold each of them
harmless, then, in the absence of notice to the Trustee or the Authenticating
Agent that such Certificate has been acquired by a bona fide purchaser, the
Trustee shall execute and authenticate (or cause the Authenticating Agent to
authenticate) and deliver, in exchange for or in lieu of any such mutilated,
destroyed, lost or stolen Certificate, a new Certificate of like tenor and
principal portion or Percentage Interest and of the same Class. Upon the
issuance of any new Certificate under this Section, the Trustee or the
Certificate Registrar may require the payment of a sum sufficient to cover any
tax or other governmental charge that may be imposed in relation thereto and any
other expense (including the fees and expenses of the Trustee or the
Authenticating Agent) in connection therewith. Any duplicate Certificate issued
pursuant to this Section shall constitute complete and indefeasible evidence of
ownership in the Trust Estate, as if originally issued, whether or not the lost,
stolen, or destroyed Certificate shall be found at any time.

            SECTION 5.04      PERSONS DEEMED OWNERS.

            Prior to the due presentation of a Certificate for registration of
transfer, the Seller, the Master Servicer, the Trustee, the Certificate
Registrar and any agent of the Seller, the Master Servicer, the Trustee or the
Certificate Registrar may treat the Person in whose name any Certificate is
registered as the owner of such Certificate for the purpose of receiving
distributions pursuant to Section 4.01, and for all other purposes whatsoever,
and neither the Seller, the Master Servicer, the Trustee, the Certificate
Registrar nor any agent of the Seller, the Master Servicer, the Trustee or the
Certificate Registrar shall be affected by notice to the contrary.

            SECTION 5.05      ACCESS TO LIST OF CERTIFICATEHOLDERS' NAMES AND
                              ADDRESSES.

            (a) If the Trustee is not acting as Certificate Registrar, the
Certificate Registrar shall furnish or cause to be furnished to the Trustee,
within 15 days after receipt by the Certificate Registrar of a request by the
Trustee in writing, a list, in such form as the Trustee may reasonably require,
of the names and addresses of the Certificateholders of each Class as of the
most recent Record Date.

            (b) If five or more Certificateholders (hereinafter referred to as
"applicants") apply in writing to the Trustee, and such application states that
the applicants desire to communicate with other Certificateholders with respect
to their rights under this Agreement or under the Certificates and is
accompanied by a copy of the communication which such applicants propose to
transmit, then the Trustee shall, within five Business Days following the
receipt of such application, afford such applicants access during normal
business hours to the most recent list of Certificateholders held by the
Trustee. If such a list is as of the date more than 90 days prior to the date of
receipt of such applicants' request and the Trustee is not the Certificate
Registrar, the Trustee shall promptly request from the Certificate Registrar a
current list as provided in paragraph (a) hereof, and shall afford such
applicants access to such list promptly upon receipt.

            (c) Every Certificateholder, by receiving and holding a Certificate,
agrees with the Seller, the Master Servicer, the Certificate Registrar and the
Trustee that neither the Seller, the Master Servicer, the Certificate Registrar
nor the Trustee shall be held accountable by reason of the disclosure of any
such information as to the names, addresses and Percentage Interests of the
Certificateholders hereunder, regardless of the source from which such
information was delivered.

            SECTION 5.06      MAINTENANCE OF OFFICE OR AGENCY.

            The Trustee will maintain, at its expense, an office or agency where
Certificates may be surrendered for registration of transfer or exchange and
where notices and demands to or upon the Certificate Registrar in respect of the
Certificates and this Agreement may be served. The Trustee initially designates
the Corporate Trust Office and the principal corporate trust office of the
Authenticating Agent, if any, as its offices and agencies for said purposes.

            SECTION 5.07      DEFINITIVE CERTIFICATES.

            If (i)(A) the Master Servicer advises the Trustee in writing that
the Clearing Agency is no longer willing or able properly to discharge its
responsibilities as depository with respect to the Book-Entry Certificates, and
(B) the Master Servicer is unable to locate a qualified successor, (ii) the
Master Servicer, at its option, advises the Trustee in writing that it elects to
terminate the book-entry system through the Clearing Agency or (iii) after the
occurrence of dismissal or resignation of the Master Servicer, Beneficial Owners
representing aggregate Voting Interests of not less than 51% of the aggregate
Voting Interests of each outstanding Class of Book-Entry Certificates advise the
Trustee through the Clearing Agency and Clearing Agency Participants in writing
that the continuation of a book-entry system through the Clearing Agency is no
longer in the best interests of the Beneficial Owners, the Trustee shall notify
the Beneficial Owners, through the Clearing Agency, of the occurrence of any
such event and of the availability of Definitive Certificates to Beneficial
Owners requesting the same. Upon surrender to the Trustee by the Clearing Agency
of the Certificates held of record by its nominee, accompanied by reregistration
instructions and directions to execute and authenticate new Certificates from
the Master Servicer, the Trustee shall execute and authenticate Definitive
Certificates for delivery at its Corporate Trust Office. The Master Servicer
shall arrange for, and will bear all costs of, the printing and issuance of such
Definitive Certificates. Neither the Seller, the Master Servicer nor the Trustee
shall be liable for any delay in delivery of such instructions by the Clearing
Agency and may conclusively rely on, and shall be protected in relying on, such
instructions.

            SECTION 5.08      NOTICES TO CLEARING AGENCY.

            Whenever notice or other communication to the Holders of Book-Entry
Certificates is required under this Agreement, unless and until Definitive
Certificates shall have been issued to Beneficial Owners pursuant to Section
5.07, the Trustee shall give all such notices and communications specified
herein to be given to Holders of Book-Entry Certificates to the Clearing Agency.

<PAGE>


                                   ARTICLE VI

                       THE SELLER AND THE MASTER SERVICER

            SECTION 6.01      LIABILITY OF THE SELLER AND THE MASTER SERVICER.

            The Seller and the Master Servicer shall each be liable in
accordance herewith only to the extent of the obligations specifically imposed
by this Agreement and undertaken hereunder by the Seller and the Master
Servicer.

            SECTION 6.02      MERGER OR CONSOLIDATION OF THE SELLER OR THE
                              MASTER SERVICER.

            Subject to the following paragraph, the Seller and the Master
Servicer each will keep in full effect its existence, rights and franchises as a
corporation under the laws of the jurisdiction of its incorporation, and will
obtain and preserve its qualification to do business as a foreign corporation in
each jurisdiction in which such qualification is or shall be necessary to
protect the validity and enforceability of this Agreement, the Certificates or
any of the Mortgage Loans and to perform its respective duties under this
Agreement.

            The Seller or the Master Servicer may be merged or consolidated with
or into any Person, or transfer all or substantially all of its assets to any
Person, in which case any Person resulting from any merger or consolidation to
which the Seller or Master Servicer shall be a party, or any Person succeeding
to the business of the Seller or Master Servicer, shall be the successor of the
Seller or Master Servicer hereunder, without the execution or filing of any
paper or any further act on the part of any of the parties hereto, anything
herein to the contrary notwithstanding; provided, however, that, in the case of
the Master Servicer, any such successor or resulting Person shall be qualified
to service mortgage loans for FNMA or FHLMC.

            SECTION 6.03      LIMITATION ON LIABILITY OF THE SELLER, THE
                              MASTER SERVICER AND OTHERS.

            Neither the Seller nor the Master Servicer nor any subcontractor nor
any of the partners, directors, officers, employees or agents of any of them
shall be under any liability to the Trust Estate or the Certificateholders and
all such Persons shall be held harmless for any action taken or for refraining
from the taking of any action in good faith pursuant to this Agreement, or for
errors in judgment; provided, however, that this provision shall not protect any
such Person against any breach of warranties or representations made herein or
against any liability which would otherwise be imposed by reason of willful
misfeasance, bad faith or gross negligence in the performance of duties or by
reason of reckless disregard of obligations and duties hereunder. The Seller,
the Master Servicer, any subcontractor, and any partner, director, officer,
employee or agent of any of them shall be entitled to indemnification by the
Trust Estate and will be held harmless against any loss, liability or expense
incurred in connection with any legal action relating to this Agreement or the
Certificates, including without limitation, any legal action against the Trustee
in its capacity as Trustee hereunder, other than any loss, liability or expense
(including without limitation, expenses payable by the Master Servicer under
8.06) incurred by reason of willful misfeasance, bad faith or gross negligence
in the performance of his or its duties hereunder or by reason of reckless
disregard of his or its obligations and duties hereunder. The Seller, the Master
Servicer and any of the directors, officers, employees or agents of either may
rely in good faith on any document of any kind which, prima facie, is properly
executed and submitted by any Person respecting any matters arising hereunder.
Neither the Seller nor the Master Servicer shall be under any obligation to
appear in, prosecute or defend any legal action unless such action is related to
its respective duties under this Agreement and which in its opinion does not
involve it in any expense or liability; provided, however, that the Seller or
the Master Servicer may in its discretion undertake any such action which it may
deem necessary or desirable with respect to this Agreement and the rights and
duties of the parties hereto and the interests of the Certificateholders
hereunder if the Certificateholders offer to the Seller or the Master Servicer,
as the case may be, reasonable security or indemnity against the costs, expenses
and liabilities which may be incurred therein or thereby. In such event, the
legal expenses and costs of such action and any liability resulting therefrom
shall be expenses, costs and liabilities of the Trust Estate, and the Seller or
the Master Servicer shall be entitled to be reimbursed therefor out of the
Certificate Account, and such amounts shall, on the following Distribution Date
or Distribution Dates, be allocated in reduction of distributions on the Class A
and Class B Certificates in the same manner as Realized Losses are allocated
pursuant to Section 4.02(a).

            SECTION 6.04      RESIGNATION OF THE MASTER SERVICER.

            The Master Servicer shall not resign from the obligations and duties
hereby imposed on it except upon determination that its duties hereunder are no
longer permissible under applicable law or are in material conflict by reason of
applicable law with any other activities carried on by it. Any such
determination permitting the resignation of the Master Servicer shall be
evidenced by an Opinion of Counsel to such effect delivered to the Trustee. No
such resignation shall become effective until the Trustee or a successor
servicer shall have assumed the Master Servicer's responsibilities, duties,
liabilities and obligations hereunder.

            SECTION 6.05      COMPENSATION TO THE MASTER SERVICER.

            The Master Servicer shall be entitled to receive a monthly fee equal
to the Master Servicing Fee, as compensation for services rendered by the Master
Servicer under this Agreement. The Master Servicer also will be entitled to any
late reporting fees paid by a Servicer pursuant to its Servicing Agreement and
any investment income on funds on deposit in the Certificate Account as
additional compensation.

            SECTION 6.06      ASSIGNMENT OR DELEGATION OF DUTIES BY MASTER
                              SERVICER.

            The Master Servicer shall not assign or transfer any of its rights,
benefits or privileges under this Agreement to any other Person, or delegate to
or subcontract with, or authorize or appoint any other Person to perform any of
the duties, covenants or obligations to be performed by the Master Servicer
without the prior written consent of the Trustee, and any agreement, instrument
or act purporting to effect any such assignment, transfer, delegation or
appointment shall be void. Notwithstanding the foregoing, the Master Servicer
shall have the right without the prior written consent of the Trustee (i) to
assign its rights and delegate its duties and obligations hereunder; provided,
however, that (a) the purchaser or transferee accepting such assignment or
delegation is qualified to service mortgage loans for FNMA or FHLMC, is
satisfactory to the Trustee, in the exercise of its reasonable judgment, and
executes and delivers to the Trustee an agreement, in form and substance
reasonably satisfactory to the Trustee, which contains an assumption by such
purchaser or transferee of the due and punctual performance and observance of
each covenant and condition to be performed or observed by the Master Servicer
hereunder from and after the date of such agreement; and (b) each applicable
Rating Agency's rating of any Certificates in effect immediately prior to such
assignment, sale or transfer is not reasonably likely to be qualified,
downgraded or withdrawn as a result of such assignment, sale or transfer and the
Certificates are not reasonably likely to be placed on credit review status by
any such Rating Agency; and (ii) to delegate to, subcontract with, authorize, or
appoint an affiliate of the Master Servicer to perform and carry out any duties,
covenants or obligations to be performed and carried out by the Master Servicer
under this Agreement and hereby agrees so to delegate, subcontract, authorize or
appoint to an affiliate of the Master Servicer any duties, covenants or
obligations to be performed and carried out by the Master Servicer to the extent
that such duties, covenants or obligations are to be performed in any state or
states in which the Master Servicer is not authorized to do business as a
foreign corporation but in which the affiliate is so authorized. In no case,
however, shall any permitted assignment and delegation relieve the Master
Servicer of any liability to the Trustee or the Seller under this Agreement,
incurred by it prior to the time that the conditions contained in clause (i)
above are met.

            SECTION 6.07      INDEMNIFICATION OF TRUSTEE AND SELLER BY MASTER
                              SERVICER.

            The Master Servicer shall indemnify and hold harmless the Trustee
and the Seller and any director, officer or agent thereof against any loss,
liability or expense, including reasonable attorney's fees, arising out of, in
connection with or incurred by reason of willful misfeasance, bad faith or
negligence in the performance of duties of the Master Servicer under this
Agreement or by reason of reckless disregard of its obligations and duties under
this Agreement. Any payment pursuant to this Section made by the Master Servicer
to the Trustee or the Seller shall be from such entity's own funds, without
reimbursement therefor. The provisions of this Section 6.07 shall survive the
termination of this Agreement.

            SECTION 6.08      MASTER SERVICER COVENANTS CONCERNING YEAR 2000
                              COMPLIANCE.

            The Master Servicer covenants that it has modified its computer and
other systems used in the performance of its duties as master servicer for the
Certificates to operate in a manner such that, after January 1, 2000, the Master
Servicer can perform its duties in accordance with the terms of this Agreement.


<PAGE>


                                   ARTICLE VII

                                     DEFAULT

            SECTION 7.01      EVENTS OF DEFAULT.

            In case one or more of the following Events of Default by the Master
Servicer shall occur and be continuing, that is to say:

               (i) any failure by the Master Servicer (a) to remit any funds to
      the Paying Agent as required by Section 4.03 or (b) to distribute or cause
      to be distributed to Certificateholders any payment required to be made by
      the Master Servicer under the terms of this Agreement which, in either
      case, continues unremedied for a period of three business days after the
      date upon which written notice of such failure, requiring the same to be
      remedied, shall have been given to the Master Servicer by the Trustee or
      to the Master Servicer and the Trustee by the holders of Certificates
      evidencing in the aggregate not less than 25% of the aggregate Voting
      Interest represented by all Certificates; or

               (ii) any failure on the part of the Master Servicer duly to
      observe or perform in any material respect any other of the covenants or
      agreements on the part of the Master Servicer in the Certificates or in
      this Agreement which continues unremedied for a period of 60 days after
      the date on which written notice of such failure, requiring the same to be
      remedied, shall have been given to the Master Servicer by the Trustee, or
      to the Master Servicer and the Trustee by the holders of Certificates
      evidencing in the aggregate not less than 25% of the aggregate Voting
      Interest represented by all Certificates; or

               (iii) a decree or order of a court or agency or supervisory
      authority having jurisdiction in the premises for the appointment of a
      trustee, conservator, receiver or liquidator in any bankruptcy,
      insolvency, readjustment of debt, marshaling of assets and liabilities or
      similar proceedings, or for the winding-up or liquidation of its affairs,
      shall have been entered against the Master Servicer and such decree or
      order shall have remained in force undischarged and unstayed for a period
      of 60 days; or

               (iv) the Master Servicer shall consent to the appointment of a
      trustee, conservator, receiver or liquidator or liquidating committee in
      any bankruptcy, insolvency, readjustment of debt, marshaling of assets and
      liabilities, voluntary liquidation or similar proceedings of or relating
      to the Master Servicer, or of or relating to all or substantially all of
      its property; or

               (v) the Master Servicer shall admit in writing its inability to
      pay its debts generally as they become due, file a petition to take
      advantage of any applicable insolvency, bankruptcy or reorganization
      statute, make an assignment for the benefit of its creditors or
      voluntarily suspend payment of its obligations;

               (vi) the Master Servicer shall be dissolved, or shall dispose of
      all or substantially all of its assets; or consolidate with or merge into
      another entity or shall permit another entity to consolidate or merge into
      it, such that the resulting entity does not meet the criteria for a
      successor servicer, as specified in Section 6.02 hereof; or

               (vii) the Master Servicer and any subservicer appointed by it
      becomes ineligible to service for both FNMA and FHLMC, which ineligibility
      continues unremedied for a period of 90 days.

then, and in each and every such case, subject to applicable law, so long as an
Event of Default shall not have been remedied, either the Trustee or the holders
of Certificates evidencing in the aggregate not less than 66 2/3% of the
aggregate Voting Interest represented by all Certificates, by notice in writing
to the Master Servicer (and to the Trustee if given by the Certificateholders)
may terminate all of the rights and obligations of the Master Servicer under
this Agreement and in and to the Mortgage Loans, but without prejudice to any
rights which the Master Servicer may have to the aggregate Master Servicing Fees
due prior to the date of transfer of the Master Servicer's responsibilities
hereunder, reimbursement of expenses to the extent permitted by this Agreement,
Periodic Advances and other advances of its own funds. Upon receipt by the
Master Servicer of such written notice, all authority and power of the Master
Servicer under this Agreement, whether with respect to the Certificates or the
Mortgage Loans or otherwise, shall pass to and be vested in the Trustee pursuant
to and under this Section, subject to the provisions of Section 7.05; and,
without limitation, the Trustee is hereby authorized and empowered to execute
and deliver, on behalf of the Master Servicer, as attorney-in-fact or otherwise,
any and all documents and other instruments, and to do or accomplish all other
acts or things necessary or appropriate to effect the purposes of such notice of
termination, whether to complete the transfer and endorsement or assignment of
the Mortgage Loans and related documents or otherwise. The Master Servicer
agrees to cooperate with the Trustee in effecting the termination of the Master
Servicer's responsibilities and rights hereunder and shall promptly provide the
Trustee all documents and records reasonably requested by it to enable it to
assume the Master Servicer's functions hereunder and shall promptly also
transfer to the Trustee all amounts which then have been or should have been
deposited in the Certificate Account by the Master Servicer or which are
thereafter received by the Master Servicer with respect to the Mortgage Loans.

            SECTION 7.02      OTHER REMEDIES OF TRUSTEE.

            During the continuance of any Event of Default, so long as such
Event of Default shall not have been remedied, the Trustee, in addition to the
rights specified in Section 7.01, shall have the right, in its own name as
trustee of an express trust, to take all actions now or hereafter existing at
law, in equity or by statute to enforce its rights and remedies and to protect
the interests, and enforce the rights and remedies, of the Certificateholders
(including the institution and prosecution of all judicial, administrative and
other proceedings and the filing of proofs of claim and debt in connection
therewith). Except as otherwise expressly provided in this Agreement, no remedy
provided for by this Agreement shall be exclusive of any other remedy, and each
and every remedy shall be cumulative and in addition to any other remedy and no
delay or omission to exercise any right or remedy shall impair any such right or
remedy or shall be deemed to be a waiver of any Event of Default.

            SECTION 7.03      DIRECTIONS BY CERTIFICATEHOLDERS AND
                              DUTIES OF TRUSTEE DURING EVENT OF DEFAULT.

            During the continuance of any Event of Default, Holders of
Certificates evidencing in the aggregate not less than 25% of the aggregate
Voting Interest represented by all Certificates may direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred upon the Trustee, under this Agreement;
provided, however, that the Trustee shall be under no obligation to pursue any
such remedy, or to exercise any of the rights or powers vested in it by this
agreement (including, without limitation, (i) the conducting or defending of any
administrative action or litigation hereunder or in relation hereto and (ii) the
terminating of the Master Servicer from its rights and duties as servicer
hereunder) at the request, order or direction of any of the Certificateholders,
unless such Certificateholders shall have offered to the Trustee reasonable
security or indemnity against the cost, expenses and liabilities which may be
incurred therein or thereby and, provided further, that, subject to the
provisions of Section 8.01, the Trustee shall have the right to decline to
follow any such direction if the Trustee, in accordance with an Opinion of
Counsel, determines that the action or proceeding so directed may not lawfully
be taken or if the Trustee in good faith determines that the action or
proceeding so directed would involve it in personal liability or be unjustly
prejudicial to the nonassenting Certificateholders.

            SECTION 7.04      ACTION UPON CERTAIN FAILURES OF THE
                              MASTER SERVICER AND UPON EVENT OF DEFAULT.

            In the event that the Trustee shall have knowledge of any failure of
the Master Servicer specified in Section 7.01(i) or (ii) which would become an
Event of Default upon the Master Servicer's failure to remedy the same after
notice, the Trustee may, but need not if the Trustee deems it not in the
Certificateholders' best interest, give notice thereof to the Master Servicer.
For all purposes of this Agreement, in the absence of actual knowledge by a
corporate trust officer of the Trustee, the Trustee shall not be deemed to have
knowledge of any failure of the Master Servicer as specified in Section 7.01(i)
and (ii) or any Event of Default unless notified thereof in writing by the
Master Servicer or by a Certificateholder.

            SECTION 7.05      TRUSTEE TO ACT; APPOINTMENT OF SUCCESSOR.

            When the Master Servicer receives notice of termination pursuant to
Section 7.01 or the Trustee receives the resignation of the Master Servicer
evidenced by an Opinion of Counsel pursuant to Section 6.04, the Trustee shall
be the successor in all respects to the Master Servicer in its capacity as
master servicer under this Agreement and the transactions set forth or provided
for herein and shall have the rights and powers and be subject to all the
responsibilities, duties and liabilities relating thereto placed on the Master
Servicer by the terms and provisions hereof and in its capacity as such
successor shall have the same limitation of liability herein granted to the
Master Servicer. In the event that the Trustee is succeeding to the Master
Servicer as the Master Servicer, as compensation therefor, the Trustee shall be
entitled to receive monthly such portion of the Master Servicing Fee, together
with such other servicing compensation as is agreed to at such time by the
Trustee and the Master Servicer, but in no event more than 25% thereof until the
date of final cessation of the Master Servicer's servicing activities hereunder.
Notwithstanding the above, the Trustee may, if it shall be unwilling to so act,
or shall, if it is unable to so act or to obtain a qualifying bid as described
below, appoint, or petition a court of competent jurisdiction to appoint, any
housing and home finance institution, bank or mortgage servicing institution
having a net worth of not less than $10,000,000 and meeting such other standards
for a successor servicer as are set forth herein, as the successor to the Master
Servicer hereunder in the assumption of all or any part of the responsibilities,
duties or liabilities of the Master Servicer hereunder; provided, however, that
until such a successor master servicer is appointed and has assumed the
responsibilities, duties and liabilities of the Master Servicer hereunder, the
Trustee shall continue as the successor to the Master Servicer as provided
above. The compensation of any successor master servicer so appointed shall not
exceed the compensation specified in Section 6.05 hereof. In the event the
Trustee is required to solicit bids as provided above, the Trustee shall
solicit, by public announcement, bids from housing and home finance
institutions, banks and mortgage servicing institutions meeting the
qualifications set forth in the preceding sentence for the purchase of the
master servicing functions. Such public announcement shall specify that the
successor master servicer shall be entitled to the full amount of the Master
Servicing Fee as compensation together with the other servicing compensation in
the form of late reporting fees or otherwise as provided in Section 6.05. Within
30 days after any such public announcement, the Trustee shall negotiate and
effect the sale, transfer and assignment of the master servicing rights and
responsibilities hereunder to the qualified party submitting the highest
qualifying bid. The Trustee shall deduct all costs and expenses of any public
announcement and of any sale, transfer and assignment of the servicing rights
and responsibilities hereunder from any sum received by the Trustee from the
successor to the Master Servicer in respect of such sale, transfer and
assignment. After such deductions, the remainder of such sum shall be paid by
the Trustee to the Master Servicer at the time of such sale, transfer and
assignment to the Master Servicer's successor. The Trustee and such successor
shall take such action, consistent with this Agreement, as shall be necessary to
effectuate any such succession. The Master Servicer agrees to cooperate with the
Trustee and any successor servicer in effecting the termination of the Master
Servicer's servicing responsibilities and rights hereunder and shall promptly
provide the Trustee or such successor master servicer, as applicable, all
documents and records reasonably requested by it to enable it to assume the
Master Servicer's function hereunder and shall promptly also transfer to the
Trustee or such successor master servicer, as applicable, all amounts which then
have been or should have been deposited in the Certificate Account by the Master
Servicer or which are thereafter received by the Master Servicer with respect to
the Mortgage Loans. Neither the Trustee nor any other successor master servicer
shall be deemed to be in default hereunder by reason of any failure to make, or
any delay in making, any distribution hereunder or any portion thereof caused by
(i) the failure of the Master Servicer to deliver, or any delay in delivering,
cash, documents or records to it, or (ii) restrictions imposed by any regulatory
authority having jurisdiction over the Master Servicer. Notwithstanding anything
to the contrary contained in Section 7.01 above or this Section 7.05, the Master
Servicer shall retain all of its rights and responsibilities hereunder, and no
successor (including the Trustee) shall succeed thereto, if the assumption
thereof by such successor would cause the rating assigned to any Certificates to
be revoked, downgraded or placed on credit review status (other than for
possible upgrading) by either Rating Agency and the retention thereof by the
Master Servicer would avert such revocation, downgrading or review.

            SECTION 7.06      NOTIFICATION TO CERTIFICATEHOLDERS.

            Upon any termination of the Master Servicer or appointment of a
successor master servicer, in each case as provided herein, the Trustee shall
give prompt written notice thereof to Certificateholders at their respective
addresses appearing in the Certificate Register. The Trustee shall also, within
45 days after the occurrence of any Event of Default known to the Trustee, give
written notice thereof to Certificateholders at their respective addresses
appearing in the Certificate Register, unless such Event of Default shall have
been cured or waived within said 45 day period.


<PAGE>


                                  ARTICLE VIII

                             CONCERNING THE TRUSTEE

            SECTION 8.01      DUTIES OF TRUSTEE.

            The Trustee, prior to the occurrence of an Event of Default and
after the curing of all Events of Default which may have occurred, undertakes to
perform such duties and only such duties as are specifically set forth in this
Agreement. In case an Event of Default has occurred (which has not been cured),
the Trustee, subject to the provisions of Sections 7.01, 7.03, 7.04 and 7.05,
shall exercise such of the rights and powers vested in it by this Agreement, and
use the same degree of care and skill in its exercise as a prudent investor
would exercise or use under the circumstances in the conduct of such investor's
own affairs.

            The Trustee, upon receipt of all resolutions, certificates,
statements, opinions, reports, documents, orders or other instruments furnished
to the Trustee which are specifically required to be furnished pursuant to any
provision of this Agreement, shall examine them to determine whether they are in
the form required by this Agreement; provided, however, that the Trustee shall
not be responsible for the accuracy or content of any certificate, statement,
instrument, report, notice or other document furnished by the Master Servicer or
the Servicers pursuant to Articles III, IV and IX.

            No provision of this Agreement shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act or its own willful misconduct; provided, however, that:

               (i) Prior to the occurrence of an Event of Default and after the
      curing of all such Events of Default which may have occurred, the duties
      and obligations of the Trustee shall be determined solely by the express
      provisions of this Agreement, the Trustee shall not be liable except for
      the performance of such duties and obligations as are specifically set
      forth in this Agreement, no implied covenants or obligations shall be read
      into this Agreement against the Trustee and, in the absence of bad faith
      on the part of the Trustee, the Trustee may conclusively rely, as to the
      truth of the statements and the correctness of the opinions expressed
      therein, upon any certificates or opinions furnished to the Trustee and
      conforming to the requirements of this Agreement;

               (ii) The Trustee shall not be personally liable with respect to
      any action taken, suffered or omitted to be taken by it in good faith in
      accordance with the direction of holders of Certificates which evidence in
      the aggregate not less than 25% of the Voting Interest represented by all
      Certificates relating to the time, method and place of conducting any
      proceeding for any remedy available to the Trustee, or exercising any
      trust or power conferred upon the Trustee under this Agreement; and

               (iii) The Trustee shall not be liable for any error of judgment
      made in good faith by any of its Responsible Officers, unless it shall be
      proved that the Trustee or such Responsible Officer, as the case may be,
      was negligent in ascertaining the pertinent facts.

            None of the provisions contained in this Agreement shall require the
Trustee to expend or risk its own funds or otherwise incur personal financial
liability in the performance of any of its duties hereunder or in the exercise
of any of its rights or powers if there is reasonable ground for believing that
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

            SECTION 8.02      CERTAIN MATTERS AFFECTING THE TRUSTEE.

            Except as otherwise provided in Section 8.01:

               (i)The Trustee may request and rely and shall be protected in
      acting or refraining from acting upon any resolution, Officers'
      Certificate, certificate of auditors or any other certificate, statement,
      instrument, opinion, report, notice, request, consent, order, appraisal,
      bond or other paper or document believed by it to be genuine and to have
      been signed or presented by the proper party or parties and the manner of
      obtaining consents and evidencing the authorization of the execution
      thereof shall be subject to such reasonable regulations as the Trustee may
      prescribe;

               (ii) The Trustee may consult with counsel, and any written advice
      of such counsel or any Opinion of Counsel shall be full and complete
      authorization and protection in respect of any action taken or suffered or
      omitted by it hereunder in good faith and in accordance with such advice
      or Opinion of Counsel;

               (iii) The Trustee shall not be personally liable for any action
      taken, suffered or omitted by it in good faith and believed by it to be
      authorized or within the discretion or rights or powers conferred upon it
      by this Agreement;

               (iv) Subject to Section 7.04, the Trustee shall not be
      accountable, shall have no liability and makes no representation as to any
      acts or omissions hereunder of the Master Servicer until such time as the
      Trustee may be required to act as Master Servicer pursuant to Section 7.05
      and thereupon only for the acts or omissions of the Trustee as successor
      Master Servicer; and

               (v) The Trustee may execute any of the trusts or powers hereunder
      or perform any duties hereunder either directly or by or through agents or
      attorneys.

            SECTION 8.03      TRUSTEE NOT REQUIRED TO MAKE INVESTIGATION.

            Prior to the occurrence of an Event of Default hereunder and after
the curing of all Events of Default which may have occurred, the Trustee shall
not be bound to make any investigation into the facts or matters stated in any
resolution, certificate, statement, instrument, opinion, report, notice,
request, consent, order, appraisal, bond, Mortgage, Mortgage Note or other paper
or document (provided the same appears regular on its face), unless requested in
writing to do so by holders of Certificates evidencing in the aggregate not less
than 51% of the Voting Interest represented by all Certificates; provided,
however, that if the payment within a reasonable time to the Trustee of the
costs, expenses or liabilities likely to be incurred by it in the making of such
investigation is, in the opinion of the Trustee, not reasonably assured to the
Trustee by the security afforded to it by the terms of this Agreement, the
Trustee may require reasonable indemnity against such expense or liability as a
condition to so proceeding. The reasonable expense of every such investigation
shall be paid by the Master Servicer or, if paid by the Trustee, shall be repaid
by the Master Servicer upon demand.

            SECTION 8.04      TRUSTEE NOT LIABLE FOR CERTIFICATES OR MORTGAGE
                              LOANS.

            The recitals contained herein and in the Certificates (other than
the certificate of authentication on the Certificates) shall be taken as the
statements of the Seller, and the Trustee assumes no responsibility as to the
correctness of the same. The Trustee makes no representation for the correctness
of the same. The Trustee makes no representation as to the validity or
sufficiency of this Agreement or of the Certificates or of any Mortgage Loan or
related document. Subject to Section 2.04, the Trustee shall not be accountable
for the use or application by the Seller of any of the Certificates or of the
proceeds of such Certificates, or for the use or application of any funds paid
to the Master Servicer in respect of the Mortgage Loans deposited into the
Certificate Account by the Master Servicer or, in its capacity as trustee, for
investment of any such amounts.

            SECTION 8.05      TRUSTEE MAY OWN CERTIFICATES.

            The Trustee and any agent thereof, in its individual or any other
capacity, may become the owner or pledgee of Certificates with the same rights
it would have if it were not Trustee or such agent and may transact banking
and/or trust business with the Seller, the Master Servicer or their Affiliates.

            SECTION 8.06      THE MASTER SERVICER TO PAY FEES AND EXPENSES.

            The Master Servicer covenants and agrees to pay to the Trustee from
time to time, and the Trustee shall be entitled to receive, reasonable
compensation (which shall not be limited by any provision of law in regard to
the compensation of a trustee of an express trust) for all services rendered by
it in the execution of the trusts hereby created and in the exercise and
performance of any of the powers and duties hereunder of the Trustee and the
Master Servicer will pay or reimburse the Trustee upon its request for all
reasonable expenses, disbursements and advances incurred or made by it in
accordance with any of the provisions of this Agreement (including the
reasonable compensation and the expenses and disbursements of its counsel and of
all persons not regularly in its employ) except any such expense, disbursement,
or advance as may arise from its negligence or bad faith.

            SECTION 8.07      ELIGIBILITY REQUIREMENTS.

            The Trustee hereunder shall at all times (i) be a corporation or
association having its principal office in a state and city acceptable to the
Seller, organized and doing business under the laws of such state or the United
States of America, authorized under such laws to exercise corporate trust
powers, having a combined capital and surplus of at least $50,000,000, or shall
be a member of a bank holding system, the aggregate combined capital and surplus
of which is at least $50,000,000, provided that its separate capital and surplus
shall at all times be at least the amount specified in Section 310(a)(2) of the
Trust Indenture Act of 1939, (ii) be subject to supervision or examination by
federal or state authority and (iii) have a credit rating or be otherwise
acceptable to the Rating Agencies such that neither of the Rating Agencies would
reduce their respective then current ratings of the Certificates (or have
provided such security from time to time as is sufficient to avoid such
reduction) as evidenced in writing by each Rating Agency. If such corporation or
association publishes reports of condition at least annually, pursuant to law or
to the requirements of the aforesaid supervising or examining authority, then
for the purposes of this Section the combined capital and surplus of such
corporation or association shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. In
case at any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, the Trustee shall resign immediately in the manner
and with the effect specified in Section 8.08.

            SECTION 8.08      RESIGNATION AND REMOVAL.

            The Trustee may at any time resign and be discharged from the trust
hereby created by giving written notice of resignation to the Master Servicer,
such resignation to be effective upon the appointment of a successor trustee.
Upon receiving such notice of resignation, the Master Servicer shall promptly
appoint a successor trustee by written instrument, in duplicate, one copy of
which instrument shall be delivered to the resigning entity and one copy to its
successor. If no successor trustee shall have been appointed and have accepted
appointment within 30 days after the giving of such notice of resignation, the
resigning Trustee may petition any court of competent jurisdiction for the
appointment of a successor trustee.

            If at any time the Trustee shall cease to be eligible in accordance
with the provisions of Section 8.07 and shall fail to resign after written
request for its resignation by the Master Servicer, or if at any time the
Trustee shall become incapable of acting, or an order for relief shall have been
entered in any bankruptcy or insolvency proceeding with respect to such entity,
or a receiver of such entity or of its property shall be appointed, or any
public officer shall take charge or control of the Trustee or of the property or
affairs of the Trustee for the purpose of rehabilitation, conversion or
liquidation, or the Master Servicer shall deem it necessary in order to change
the situs of the Trust Estate for state tax reasons, then the Master Servicer
shall remove the Trustee and appoint a successor trustee by written instrument,
in duplicate, one copy of which instrument shall be delivered to the Trustee so
removed and one copy to the successor trustee.

            The Holders of Certificates evidencing in the aggregate not less
than 51% of the Voting Interests represented by all Certificates (except that
any Certificate registered in the name of the Seller, the Master Servicer or any
affiliate thereof will not be taken into account in determining whether the
requisite Voting Interests has been obtained) may at any time remove the Trustee
and appoint a successor by written instrument or instruments, in triplicate,
signed by such holders or their attorneys-in-fact duly authorized, one complete
set of which instruments shall be delivered to the Master Servicer, one complete
set of which shall be delivered to the entity or entities so removed and one
complete set of which shall be delivered to the successor so appointed.

            Any resignation or removal of the Trustee and appointment of a
successor pursuant to any of the provisions of this Section shall become
effective upon acceptance of appointment by the successor as provided in Section
8.09.

            SECTION 8.09      SUCCESSOR.

            Any successor trustee appointed as provided in Section 8.08 shall
execute, acknowledge and deliver to the Master Servicer and to its predecessor
trustee an instrument accepting such appointment hereunder, and thereupon the
resignation or removal of the predecessor trustee shall become effective, and
such successor, without any further act, deed or reconveyance, shall become
fully vested with all the rights, powers, duties and obligations of its
predecessor hereunder, with like effect as if originally named as trustee
herein. The predecessor trustee shall deliver to its successor all Owner
Mortgage Loan Files and related documents and statements held by it hereunder
(other than any Owner Mortgage Loan Files at the time held by a Custodian, which
Custodian shall become the agent of any successor trustee hereunder), and the
Seller, the Master Servicer and the predecessor entity shall execute and deliver
such instruments and do such other things as may reasonably be required for more
fully and certainly vesting and confirming in the successor trustee all such
rights, powers, duties and obligations. No successor shall accept appointment as
provided in this Section unless at the time of such acceptance such successor
shall be eligible under the provisions of Section 8.07

            Upon acceptance of appointment by a successor as provided in this
Section, the Master Servicer shall mail notice of the succession of such trustee
hereunder to all Holders of Certificates at their addresses as shown in the
Certificate Register. If the Master Servicer fails to mail such notice within
ten days after acceptance of the successor trustee, the successor trustee shall
cause such notice to be mailed at the expense of the Master Servicer.

            SECTION 8.10      MERGER OR CONSOLIDATION.

            Any Person into which the Trustee may be merged or converted or with
which it may be consolidated, to which it may sell or transfer its corporate
trust business and assets as a whole or substantially as a whole or any Person
resulting from any merger, sale, transfer, conversion or consolidation to which
the Trustee shall be a party, or any Person succeeding to the business of such
entity, shall be the successor of the Trustee hereunder; provided, however, that
(i) such Person shall be eligible under the provisions of Section 8.07, without
the execution or filing of any paper or any further act on the part of any of
the parties hereto, anything herein to the contrary notwithstanding, and (ii)
the Trustee shall deliver an Opinion of Counsel to the Seller and the Master
Servicer to the effect that such merger, consolidation, sale or transfer will
not subject the REMIC to federal, state or local tax or cause the REMIC to not
qualify as a REMIC, which Opinion of Counsel shall be at the sole expense of the
Trustee.

            SECTION 8.11      AUTHENTICATING AGENT.

            The Trustee may appoint an Authenticating Agent, which shall be
authorized to act on behalf of the Trustee in authenticating Certificates.
Wherever reference is made in this Agreement to the authentication of
Certificates by the Trustee or the Trustee's countersignature, such reference
shall be deemed to include authentication on behalf of the Trustee by the
Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by the Authenticating Agent. The Authenticating Agent must be
acceptable to the Seller and the Master Servicer and must be a corporation
organized and doing business under the laws of the United States of America or
of any state, having a principal office and place of business in a state and
city acceptable to the Seller and the Master Servicer, having a combined capital
and surplus of at least $15,000,000, authorized under such laws to do a trust
business and subject to supervision or examination by federal or state
authorities.

            Any corporation into which the Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which the Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency business
of the Authenticating Agent, shall be the Authenticating Agent without the
execution or filing of any paper or any further act on the part of the Trustee
or the Authenticating Agent.

            The Authenticating Agent may at any time resign by giving at least
30 days' advance written notice of resignation to the Trustee, the Seller and
the Master Servicer. The Trustee may at any time terminate the agency of the
Authenticating Agent by giving written notice thereof to the Authenticating
Agent, the Seller and the Master Servicer. Upon receiving a notice of
resignation or upon such a termination, or in case at any time the
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section 8.11, the Trustee promptly shall appoint a successor
Authenticating Agent, which shall be acceptable to the Master Servicer, and
shall give written notice of such appointment to the Seller, and shall mail
notice of such appointment to all Certificateholders. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers, duties and responsibilities of its
predecessor hereunder, with like effect as if originally named as Authenticating
Agent herein. No successor Authenticating Agent shall be appointed unless
eligible under the provisions of this Section 8.11.

            The Authenticating Agent shall have no responsibility or liability
for any action taken by it as such at the direction of the Trustee. Any
reasonable compensation paid to the Authenticating Agent shall be a reimbursable
expense under Section 8.06.

            SECTION 8.12      SEPARATE TRUSTEES AND CO-TRUSTEES.

            The Trustee shall have the power from time to time to appoint one or
more persons or corporations to act either as co-trustees jointly with the
Trustee, or as separate trustees, for the purpose of holding title to,
foreclosing or otherwise taking action with respect to any Mortgage Loan outside
the state where the Trustee has its principal place of business, where such
separate trustee or co-trustee is necessary or advisable (or the Trustee is
advised by the Master Servicer that such separate trustee or co-trustee is
necessary or advisable) under the laws of any state in which a Mortgaged
Property is located or for the purpose of otherwise conforming to any legal
requirement, restriction or condition in any state in which a Mortgaged Property
is located or in any state in which any portion of the Trust Estate is located.
The Master Servicer shall advise the Trustee when, in its good faith opinion, a
separate trustee or co-trustee is necessary or advisable as aforesaid. The
separate trustees or co-trustees so appointed shall be trustees for the benefit
of all of the Certificateholders and shall have such powers, rights and remedies
as shall be specified in the instrument of appointment; provided, however, that
no such appointment shall, or shall be deemed to, constitute the appointee an
agent of the Trustee. The Seller and the Master Servicer shall join in any such
appointment, but such joining shall not be necessary for the effectiveness of
such appointment.

            Every separate trustee and co-trustee shall, to the extent permitted
by law, be appointed and act subject to the following provisions and conditions:

               (i) all powers, duties, obligations and rights conferred upon the
      Trustee, in respect of the receipt, custody and payment of moneys shall be
      exercised solely by the Trustee;

               (ii) all other rights, powers, duties and obligations conferred
      or imposed upon the Trustee shall be conferred or imposed upon and
      exercised or performed by the Trustee and such separate trustee or
      co-trustee jointly, except to the extent that under any law of any
      jurisdiction in which any particular act or acts are to be performed
      (whether as Trustee hereunder or as successor to the Master Servicer
      hereunder) the Trustee shall be incompetent or unqualified to perform such
      act or acts, in which event such rights, powers, duties and obligations
      (including the holding of title to the Trust Estate or any portion thereof
      in any such jurisdiction) shall be exercised and performed by such
      separate trustee or co-trustee;

               (iii) no separate trustee or co-trustee hereunder shall be
      personally liable by reason of any act or omission of any other separate
      trustee or co-trustee hereunder; and

               (iv) the Trustee may at any time accept the resignation of or
      remove any separate trustee or co-trustee so appointed by it, if such
      resignation or removal does not violate the other terms of this Agreement.

            Any notice, request or other writing given to the Trustee shall be
deemed to have been given to each of the then separate trustees and co-trustees,
as effectively as if given to each of them. Every instrument appointing any
separate trustee, co-trustee, or custodian shall refer to this Agreement and the
conditions of this Article. Each separate trustee and co-trustee, upon its
acceptance of the trusts conferred, shall be vested with the estates or property
specified in its instrument of appointment, either jointly with the Trustee, or
separately, as may be provided therein, subject to all the provisions of this
Agreement, specifically including every provision of this Agreement relating to
the conduct of, affecting the liability of, or affording protection to, the
Trustee. Every such instrument shall be furnished to the Trustee.

            Any separate trustee, co-trustee, or custodian may, at any time,
constitute the Trustee, its agent or attorney-in-fact, with full power and
authority, to the extent not prohibited by law, to do any lawful act under or in
respect of this Agreement on its behalf and in its name. If any separate trustee
or co-trustee shall die, become incapable of acting, resign or be removed, all
of its estates, properties, rights, remedies and trusts shall vest in and be
exercised by the Trustee to the extent permitted by law, without the appointment
of a new or successor trustee.

            No separate trustee or co-trustee hereunder shall be required to
meet the terms of eligibility as a successor trustee under Section 8.07
hereunder and no notice to Certificateholders of the appointment thereof shall
be required under Section 8.09 hereof.

            The Trustee agrees to instruct its co-trustees, if any, to the
extent necessary to fulfill such entity's obligations hereunder.

            The Master Servicer shall pay the reasonable compensation of the
co-trustees to the extent, and in accordance with the standards, specified in
Section 8.06 hereof.

            SECTION 8.13      APPOINTMENT OF CUSTODIANS.

            The Trustee may at any time on or after the Closing Date, with the
consent of the Master Servicer and the Seller, appoint one or more Custodians to
hold all or a portion of the Owner Mortgage Loan Files as agent for the Trustee,
by entering into a Custodial Agreement. Subject to this Article VIII, the
Trustee agrees to comply with the terms of each Custodial Agreement and to
enforce the terms and provisions thereof against the Custodian for the benefit
of the Certificateholders. Each Custodian shall be a depository institution
subject to supervision by federal or state authority, shall have a combined
capital and surplus of at least $10,000,000 and shall be qualified to do
business in the jurisdiction in which it holds any Owner Mortgage Loan File.
Each Custodial Agreement may be amended only as provided in Section 10.01(a).

            SECTION 8.14      TAX MATTERS; COMPLIANCE WITH REMIC PROVISIONS.

            (a) Each of the Trustee and the Master Servicer covenants and agrees
that it shall perform its duties hereunder in a manner consistent with the REMIC
Provisions and shall not knowingly take any action or fail to take any other
action that would (i) affect the determination of the Trust Estate's status as a
REMIC; or (ii) cause the imposition of any federal, state or local income,
prohibited transaction, contribution or other tax on either the REMIC or the
Trust Estate. The Master Servicer, or, in the case of any tax return or other
action required by law to be performed directly by the Trustee, the Trustee,
shall (i) prepare or cause to be prepared, timely cause to be signed by the
Trustee and file or cause to be filed annual federal and applicable state and
local income tax returns using a calendar year as the taxable year for the REMIC
and the accrual method of accounting; (ii) in the first such federal tax return,
make, or cause to be made, elections satisfying the requirements of the REMIC
Provisions, on behalf of the Trust Estate, to treat the Trust Estate as a REMIC;
(iii) prepare, execute and forward, or cause to be prepared, executed and
forwarded, to the Certificateholders all information reports or tax returns
required with respect to the REMIC, as and when required to be provided to the
Certificateholders, and to the Internal Revenue Service and any other relevant
governmental taxing authority in accordance with the REMIC Provisions and any
other applicable federal, state or local laws, including without limitation
information reports relating to "original issue discount" and "market discount"
as defined in the Code based upon the issue prices, prepayment assumption and
cash flows provided by the Seller to the Trustee and calculated on a monthly
basis by using the issue prices of the Certificates; (iv) make available
information necessary for the application of any tax imposed on transferors of
residual interests to "disqualified organizations" (as defined in the REMIC
Provisions); (v) file Form 8811 and apply for an Employee Identification Number
with a Form SS-4 or any other permissible method and respond to inquiries by
Certificateholders or their nominees concerning information returns, reports or
tax returns; (vi) maintain (or cause to be maintained by the Servicers) such
records relating to the REMIC, including but not limited to the income,
expenses, individual Mortgage Loans (including REO Mortgage Loans, other assets
and liabilities of the REMIC, and the fair market value and adjusted basis of
the REMIC property determined at such intervals as may be required by the Code,
as may be necessary to prepare the foregoing returns or information reports;
(vii) exercise reasonable care not to allow the creation of any "interests" in
the REMIC within the meaning of Code Section 860D(a)(2) other than the interests
represented by the Class I-A-1, Class I-A-2, Class I-A-3, Class I-A-4, Class
I-A-5, Class I-A-6, Class I-A-PO, Class I-A-R, Class II-A-1, Class II-A-2 and
Class II-A-PO Certificates and the Class B-l, Class B-2, Class B-3, Class B-4,
Class B-5 and Class B-6 Certificates; (viii) exercise reasonable care not to
allow the occurrence of any "prohibited transactions" within the meaning of Code
Section 860F(a), unless the Master Servicer shall have provided an Opinion of
Counsel to the Trustee that such occurrence would not (a) result in a taxable
gain, (b) otherwise subject either the Trust Estate or the REMIC to tax or (c)
cause the Trust Estate to fail to qualify as a REMIC; (ix) exercise reasonable
care not to allow the REMIC to receive income from the performance of services
or from assets not permitted under the REMIC Provisions to be held by a REMIC;
(x) pay (on behalf of the REMIC) the amount of any federal income tax,
including, without limitation, prohibited transaction taxes, taxes on net income
from foreclosure property, and taxes on certain contributions to a REMIC after
the Startup Day, imposed on the REMIC when and as the same shall be due and
payable (but such obligation shall not prevent the Master Servicer or any other
appropriate Person from contesting any such tax in appropriate proceedings and
shall not prevent the Master Servicer from withholding or depositing payment of
such tax, if permitted by law, pending the outcome of such proceedings); and
(xi) if required or permitted by the Code and applicable law, act as "tax
matters person" for the REMIC within the meaning of Treasury Regulations Section
1.860F-4(d), and the Master Servicer is hereby designated as agent of the Class
I-A-R Certificateholder for such purpose (or if the Master Servicer is not so
permitted, the Holder of the Class I-A-R Certificate shall be tax matters person
in accordance with the REMIC Provisions). The Master Servicer shall be entitled
to be reimbursed pursuant to Section 3.02 for any taxes paid by it pursuant to
clause (x) of the preceding sentence, except to the extent that such taxes are
imposed as a result of the bad faith, willful misfeasance or gross negligence of
the Master Servicer in the performance of its obligations hereunder. The Trustee
shall sign the tax returns referred to in clause (i) of the second preceding
sentence.

            In order to enable the Master Servicer or the Trustee, as the case
may be, to perform its duties as set forth above, the Seller shall provide, or
cause to be provided, to the Master Servicer within ten days after the Closing
Date all information or data that the Master Servicer determines to be relevant
for tax purposes to the valuations and offering prices of the Certificates,
including, without limitation, the price, yield, prepayment assumption and
projected cash flows of each Class of Certificates and the Mortgage Loans in the
aggregate. Thereafter, the Seller shall provide to the Master Servicer or the
Trustee, as the case may be, promptly upon request therefor, any such additional
information or data that the Master Servicer or the Trustee, as the case may be,
may from time to time, request in order to enable the Master Servicer to perform
its duties as set forth above. The Seller hereby indemnifies the Master Servicer
and the Trustee for any losses, liabilities, damages, claims or expenses of the
Master Servicer or the Trustee arising from any errors or miscalculations by the
Master Servicer or the Trustee pursuant to this Section that result from any
failure of the Seller to provide, or to cause to be provided, accurate
information or data to the Master Servicer or the Trustee, as the case may be,
on a timely basis. The Master Servicer hereby indemnifies the Seller and the
Trustee for any losses, liabilities, damages, claims or expenses of the Seller
or the Trustee arising from the Master Servicer's willful misfeasance, bad faith
or gross negligence in preparing any of the federal, state and local tax returns
of the REMIC as described above. In the event that the Trustee prepares any of
the federal, state and local tax returns of the REMIC as described above, the
Trustee hereby indemnifies the Seller and the Master Servicer for any losses,
liabilities, damages, claims or expenses of the Seller or the Master Servicer
arising from the Trustee's willful misfeasance, bad faith or negligence in
connection with such preparation.

            (b) Notwithstanding anything in this Agreement to the contrary, each
of the Master Servicer and the Trustee shall pay from its own funds, without any
right of reimbursement therefor, the amount of any costs, liabilities and
expenses incurred by the Trust Estate (including, without limitation, any and
all federal, state or local taxes, including taxes imposed on "prohibited
transactions" within the meaning of the REMIC Provisions) if and to the extent
that such costs, liabilities and expenses arise from a failure of the Master
Servicer or the Trustee, respectively, to perform its obligations under this
Section 8.14.

            SECTION 8.15      MONTHLY ADVANCES.

            In the event that Norwest Mortgage fails to make a Periodic Advance
required to be made pursuant to the Norwest Servicing Agreement on or before the
Distribution Date, the Trustee shall make a Periodic Advance as required by
Section 3.03 hereof; provided, however, the Trustee shall not be required to
make such Periodic Advances if prohibited by law or if it determines that such
Periodic Advance would be a Nonrecoverable Advance. With respect to those
Periodic Advances which should have been made by Norwest Mortgage, the Trustee
shall be entitled, pursuant to Section 3.02(a)(i), (ii) or (v) hereof, to be
reimbursed from the Certificate Account for Periodic Advances and Nonrecoverable
Advances made by it.

            SECTION 8.16      TRUSTEE COVENANTS CONCERNING YEAR 2000
                              COMPLIANCE.

            The Trustee covenants that it has modified its computer and other
systems used in the performance of its duties as trustee for the Certificates to
operate in a manner such that, after January 1, 2000, the Trustee can perform
its duties in accordance with the terms of this Agreement.

<PAGE>


                                   ARTICLE IX

                                   TERMINATION

            SECTION 9.01      TERMINATION UPON PURCHASE BY THE
                              SELLER OR LIQUIDATION OF ALL MORTGAGE LOANS.

            Subject to Section 9.02, the respective obligations and
responsibilities of the Seller, the Master Servicer and the Trustee created
hereby (other than the obligation of the Trustee to make certain payments after
the Final Distribution Date to Certificateholders and the obligation of the
Master Servicer to send certain notices as hereinafter set forth and the tax
reporting obligations under Sections 4.05 and 8.14 hereof) shall terminate upon
the last action required to be taken by the Trustee on the Final Distribution
Date pursuant to this Article IX following the earlier of (i) the purchase by
the Seller of all Mortgage Loans and all property acquired in respect of any
Mortgage Loan remaining in the Trust Estate at a price equal to the sum of (x)
100% of the unpaid principal balance of each Mortgage Loan (other than any REO
Mortgage Loan) as of the Final Distribution Date, and (y) the fair market value
of the Mortgaged Property related to any REO Mortgage Loan (as determined by the
Master Servicer as of the close of business on the third Business Day next
preceding the date upon which notice of any such termination is furnished to
Certificateholders pursuant to the third paragraph of this Section 9.01), plus
any accrued and unpaid interest through the last day of the month preceding the
month of such purchase at the applicable Mortgage Interest Rate less any Fixed
Retained Yield on each Mortgage Loan (including any REO Mortgage Loan) and (ii)
the final payment or other liquidation (or any advance with respect thereto) of
the last Mortgage Loan remaining in the Trust Estate (including for this purpose
the discharge of any Mortgagor under a defaulted Mortgage Loan on which a
Servicer is not obligated to foreclose due to environmental impairment) or the
disposition of all property acquired upon foreclosure or deed in lieu of
foreclosure of any Mortgage Loan; provided, however, that in no event shall the
trust created hereby continue beyond the expiration of 21 years from the death
of the last survivor of the descendants of Joseph P. Kennedy, the late
ambassador of the United States to the Court of St. James, living on the date
hereof.

            The right of the Seller to purchase all the assets of the Trust
Estate pursuant to clause (i) of the preceding paragraph are subject to Section
9.02 and conditioned upon the Pool Scheduled Principal Balance of the Mortgage
Loans as of the Final Distribution Date being less than the amount set forth in
Section 11.18. In the case of any purchase by the Seller pursuant to said clause
(i), the Seller shall provide to the Trustee the certification required by
Section 3.04 and the Trustee and the Custodian shall, promptly following payment
of the purchase price, release to the Seller the Owner Mortgage Loan Files
pertaining to the Mortgage Loans being purchased.

            Notice of any termination, specifying the Final Distribution Date
(which shall be a date that would otherwise be a Distribution Date) upon which
the Certificateholders may surrender their Certificates to the Trustee for
payment of the final distribution and cancellation, shall be given promptly by
the Master Servicer (if it is exercising its right to purchase the assets of the
Trust Estate) or by the Trustee (in any other case) by letter to
Certificateholders mailed not earlier than the 15th day of the month preceding
the month of such final distribution and not later than the twentieth day of the
month of such final distribution specifying (A) the Final Distribution Date upon
which final payment of the Certificates will be made upon presentation and
surrender of Certificates at the office or agency of the Trustee therein
designated, (B) the amount of any such final payment and (C) that the Record
Date otherwise applicable to such Distribution Date is not applicable, payments
being made (except in the case of any Class A Certificate surrendered on a prior
Distribution Date pursuant to Section 4.01) only upon presentation and surrender
of the Certificates at the office or agency of the Trustee therein specified. If
the Master Servicer is obligated to give notice to Certificateholders as
aforesaid, it shall give such notice to the Trustee and the Certificate
Registrar at the time such notice is given to Certificateholders. In the event
such notice is given by the Master Servicer, the Master Servicer shall deposit
in the Certificate Account on or before the Final Distribution Date in
immediately available funds an amount equal to the purchase price for the assets
of the Trust Estate computed as above provided. Failure to give notice of
termination as described herein shall not entitle a Certificateholder to any
interest beyond the interest payable on the Final Distribution Date.

            Upon presentation and surrender of the Certificates, the Trustee
shall cause to be distributed to Certificateholders on the Final Distribution
Date in proportion to their respective Percentage Interests an amount equal to
(i) as to the Classes of Class A Certificates, the respective Principal Balance
together with any related Class A Unpaid Interest Shortfall and one month's
interest in an amount equal to the respective Interest Accrual Amount, (ii) as
to the Classes of Class B Certificates, the respective Principal Balance
together with any related Class B Unpaid Interest Shortfall and one month's
interest in an amount equal to the respective Interest Accrual Amount and (iii)
as to the Class I-A-R Certificate, the amounts, if any, which remain on deposit
in the Certificate Account (other than amounts retained to meet claims) after
application pursuant to clauses (i), (ii) and (iii) above and payment to the
Master Servicer of any amounts it is entitled as reimbursement or otherwise
hereunder. Notwithstanding the foregoing, if the price paid pursuant to clause
(i) of the first paragraph of this Section 9.01, after reimbursement to the
Servicers, the Master Servicer and the Trustee of any Periodic Advances, is
insufficient to pay in full the amounts set forth in clauses (i), (ii) and (iii)
of this paragraph, then any shortfall in the amount available for distribution
to Certificateholders shall be allocated in reduction of the amounts otherwise
distributable on the Final Distribution Date in the same manner as Realized
Losses are allocated pursuant to Sections 4.02(b) and 4.02(g) hereof. Such
distribution on the Final Distribution Date shall be in lieu of the distribution
otherwise required to be made on such Distribution Date in respect of each Class
of Certificates.

            In the event that all of the Certificateholders shall not surrender
their Certificates for final payment and cancellation within three months
following the Final Distribution Date, the Trustee shall on such date cause all
funds, if any, in the Certificate Account not distributed in final distribution
to Certificateholders to be withdrawn therefrom and credited to the remaining
Certificateholders by depositing such funds in a separate escrow account for the
benefit of such Certificateholders, and the Master Servicer (if it exercised its
right to purchase the assets of the Trust Estate) or the Trustee (in any other
case) shall give a second written notice to the remaining Certificateholders to
surrender their Certificates for cancellation and receive the final distribution
with respect thereto. If within three months after the second notice all the
Certificates shall not have been surrendered for cancellation, the Trustee may
take appropriate steps, or may appoint an agent to take appropriate steps, to
contact the remaining Certificateholders concerning surrender of their
Certificates, and the cost thereof shall be paid out of the funds on deposit in
such escrow account.

            SECTION 9.02      ADDITIONAL TERMINATION REQUIREMENTS.

            In the event of a termination of the Trust Estate upon the exercise
by the Seller of its purchase option as provided in Section 9.01, the Trust
Estate shall be terminated in accordance with the following additional
requirements, unless the Trustee has received an Opinion of Counsel to the
effect that any other manner of termination (i) will constitute a "qualified
liquidation" of the Trust Estate within the meaning of Code Section
860F(a)(4)(A) and (ii) will not subject the REMIC to federal tax or cause the
Trust Estate to fail to qualify as a REMIC at any time that any Certificates are
outstanding:

               (i) The notice given by the Master Servicer under Section 9.01
      shall provide that such notice constitutes the adoption of a plan of
      complete liquidation of the REMIC as of the date of such notice (or, if
      earlier, the date on which the first such notice is mailed to
      Certificateholders). The Master Servicer shall also specify such date in a
      statement attached to the final tax return of the REMIC; and

               (ii) At or after the time of adoption of such a plan of complete
      liquidation and at or prior to the Final Distribution Date, the Trustee
      shall sell all of the assets of the Trust Estate to the Seller for cash at
      the purchase price specified in Section 9.01 and shall distribute such
      cash within 90 days of such adoption in the manner specified in Section
      9.01.

<PAGE>


                                    ARTICLE X

                            MISCELLANEOUS PROVISIONS

            SECTION 10.01     AMENDMENT.

            (a) This Agreement or any Custodial Agreement may be amended from
time to time by the Seller, the Master Servicer and the Trustee, without the
consent of any of the Certificateholders, (i) to cure any ambiguity or mistake,
(ii) to correct or supplement any provisions herein or therein which may be
inconsistent with any other provisions herein or therein, (iii) to modify,
eliminate or add to any of its provisions to such extent as shall be necessary
to maintain the qualification of the Trust Estate as a REMIC at all times that
any Certificates are outstanding or to avoid or minimize the risk of the
imposition of any federal tax on the Trust Estate or the REMIC pursuant to the
Code that would be a claim against the Trust Estate, provided that (a) the
Trustee has received an Opinion of Counsel to the effect that such action is
necessary or desirable to maintain such qualification or to avoid or minimize
the risk of the imposition of any such tax and (b) such action shall not, as
evidenced by such Opinion of Counsel, adversely affect in any material respect
the interests of any Certificateholder, (iv) to change the timing and/or nature
of deposits into the Certificate Account provided that (a) such change shall
not, as evidenced by an Opinion of Counsel, adversely affect in any material
respect the interests of any Certificateholder and (b) such change shall not
adversely affect the then-current rating of the Certificates as evidenced by a
letter from each Rating Agency to such effect, (v) to modify, eliminate or add
to the provisions of Section 5.02 or any other provisions hereof restricting
transfer of the Certificates, provided that the Master Servicer for purposes of
Section 5.02 has determined in its sole discretion that any such modifications
to this Agreement will neither adversely affect the rating on the Certificates
nor give rise to a risk that either the Trust Estate or the REMIC or any of the
Certificateholders will be subject to a tax caused by a transfer to a
non-permitted transferee and (vi) to make any other provisions with respect to
matters or questions arising under this Agreement or such Custodial Agreement
which shall not be materially inconsistent with the provisions of this
Agreement, provided that such action shall not, as evidenced by an Opinion of
Counsel, adversely affect in any material respect the interests of any
Certificateholder.

            This Agreement or any Custodial Agreement may also be amended from
time to time by the Seller, the Master Servicer and the Trustee with the consent
of the Holders of Certificates evidencing in the aggregate not less than 66-2/3%
of the aggregate Voting Interests of each Class of Certificates affected thereby
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Agreement or such Custodial Agreement
or of modifying in any manner the rights of the Holders of Certificates of such
Class; provided, however, that no such amendment shall (i) reduce in any manner
the amount of, or delay the timing of, payments received on Mortgage Loans which
are required to be distributed on any Certificate without the consent of the
Holder of such Certificate, (ii) adversely affect in any material respect the
interest of the Holders of Certificates of any Class in a manner other than as
described in clause (i) hereof without the consent of Holders of Certificates of
such Class evidencing, as to such Class, Voting Interests aggregating not less
than 66-2/3% or (iii) reduce the aforesaid percentage of Certificates of any
Class the Holders of which are required to consent to any such amendment,
without the consent of the Holders of all Certificates of such Class then
outstanding.

            Notwithstanding any contrary provision of this Agreement, the
Trustee shall not consent to any amendment to this Agreement unless it shall
have first received an Opinion of Counsel to the effect that such amendment will
not subject the REMIC to tax or cause the Trust Estate to fail to qualify as a
REMIC at any time that any Certificates are outstanding.

            Promptly after the execution of any amendment requiring the consent
of Certificateholders, the Trustee shall furnish written notification of the
substance of such amendment to each Certificateholder.

            It shall not be necessary for the consent of Certificateholders
under this Section 10.01(a) to approve the particular form of any proposed
amendment, but it shall be sufficient if such consent shall approve the
substance thereof. The manner of obtaining such consents and of evidencing the
authorization of the execution thereof by Certificateholders shall be subject to
such reasonable regulations as the Trustee may prescribe.

            (b) Notwithstanding any contrary provision of this Agreement, the
Master Servicer may, from time to time, amend Schedule I hereto without the
consent of any Certificateholder or the Trustee; provided, however, (i) that
such amendment does not conflict with any provisions of the related Servicing
Agreement, (ii) that the related Servicing Agreement provides for the remittance
of each type of Unscheduled Principal Receipts received by such Servicer during
the Applicable Unscheduled Principal Receipt Period (as so amended) related to
each Distribution Date to the Master Servicer no later than the 24th day of the
month in which such Distribution Date occurs and (iii) that such amendment is
for the purpose of:

            (a)   changing the Applicable Unscheduled Principal Receipt Period
                  for Exhibit F-1 Mortgage Loans to a Mid-Month Receipt Period
                  with respect to all Unscheduled Principal Receipts; or

            (b)   changing the Applicable Unscheduled Principal Receipt Period
                  for all Mortgage Loans serviced by any Servicer to a Mid-Month
                  Receipt Period with respect to Full Unscheduled Principal
                  Receipts and to a Prior Month Receipt Period with respect to
                  Partial Unscheduled Principal Receipts.

            A copy of any amendment to Schedule I pursuant to this Section
10.01(b) shall be promptly forwarded to the Trustee.

            SECTION 10.02     RECORDATION OF AGREEMENT.

            This Agreement (or an abstract hereof, if acceptable to the
applicable recording office) is subject to recordation in all appropriate public
offices for real property records in all the towns or other comparable
jurisdictions in which any or all of the Mortgaged Properties are situated, and
in any other appropriate public office or elsewhere, such recordation to be
effected by the Master Servicer and at its expense on direction by the Trustee,
but only upon direction accompanied by an Opinion of Counsel to the effect that
such recordation materially and beneficially affects the interests of the
Certificateholders.

            For the purpose of facilitating the recordation of this Agreement as
herein provided and for other purposes, this Agreement may be executed
simultaneously in any number of counterparts, each of which counterparts shall
be deemed to be an original, and such counterparts shall constitute but one and
the same instrument.

            SECTION 10.03     LIMITATION ON RIGHTS OF CERTIFICATEHOLDERS.

            The death or incapacity of any Certificateholder shall not operate
to terminate this Agreement or the Trust Estate, nor entitle such
Certificateholder's legal representatives or heirs to claim an accounting or
take any action or proceeding in any court for a partition or winding up of the
Trust Estate, nor otherwise affect the rights, obligations and liabilities of
the parties hereto or any of them.

            Except as otherwise expressly provided herein, no Certificateholder,
solely by virtue of its status as a Certificateholder, shall have any right to
vote or in any manner otherwise control the operation and management of the
Trust Estate, or the obligations of the parties hereto, nor shall anything
herein set forth, or contained in the terms of the Certificates, be construed so
as to constitute the Certificateholders from time to time as partners or members
of an association, nor shall any Certificateholder be under any liability to any
third person by reason of any action taken by the parties to this Agreement
pursuant to any provision hereof.

            No Certificateholder, solely by virtue of its status as
Certificateholder, shall have any right by virtue or by availing of any
provision of this Agreement to institute any suit, action or proceeding in
equity or at law upon or under or with respect to this Agreement, unless such
Holder previously shall have given to the Trustee a written notice of default
and of the continuance thereof, as hereinbefore provided, and unless also the
Holders of Certificates evidencing not less than 25% of the Voting Interest
represented by all Certificates shall have made written request upon the Trustee
to institute such action, suit or proceeding in its own name as Trustee
hereunder and shall have offered to the Trustee such reasonable indemnity as it
may require against the cost, expenses and liabilities to be incurred therein or
thereby, and the Trustee, for 60 days after its receipt of such notice, request
and offer of indemnity, shall have neglected or refused to institute any such
action, suit or proceeding; it being understood and intended, and being
expressly covenanted by each Certificateholder with every other
Certificateholder and the Trustee, that no one or more Holders of Certificates
shall have any right in any manner whatever by virtue or by availing of any
provision of this Agreement to affect, disturb or prejudice the rights of the
Holders of any other of such Certificates, or to obtain or seek to obtain
priority over or preference to any other such Holder, or to enforce any right
under this Agreement, except in the manner herein provided and for the benefit
of all Certificateholders. For the protection and enforcement of the provisions
of this Section, each and every Certificateholder and the Trustee shall be
entitled to such relief as can be given either at law or in equity.

            SECTION 10.04     GOVERNING LAW; JURISDICTION.

            This Agreement shall be construed in accordance with the laws of the
State of New York (without regard to conflicts of laws principles), and the
obligations, rights and remedies of the parties hereunder shall be determined in
accordance with such laws.

            SECTION 10.05     NOTICES.

            All demands, notices and communications hereunder shall be in
writing and shall be deemed to have been duly given if personally delivered at
or mailed by certified or registered mail, return receipt requested (i) in the
case of the Seller, to Norwest Asset Securities Corporation, 7485 New Horizon
Way, Frederick, Maryland 21703, Attention: Chief Executive Officer, or such
other address as may hereafter be furnished to the Master Servicer and the
Trustee in writing by the Seller, (ii) in the case of the Master Servicer, to
Norwest Bank Minnesota, National Association, 7485 New Horizon Way, Frederick,
Maryland 21703, Attention: Vice President or such other address as may hereafter
be furnished to the Seller and the Trustee in writing by the Master Servicer and
(iii) in the case of the Trustee, to the Corporate Trust Office, or such other
address as may hereafter be furnished to the Seller and the Master Servicer in
writing by the Trustee, in each case Attention: Corporate Trust Department. Any
notice required or permitted to be mailed to a Certificateholder shall be given
by first class mail, postage prepaid, at the address of such Holder as shown in
the Certificate Register. Any notice mailed or transmitted within the time
prescribed in this Agreement shall be conclusively presumed to have been duly
given, whether or not the addressee receives such notice, provided, however,
that any demand, notice or communication to or upon the Seller, the Master
Servicer or the Trustee shall not be effective until received.

            For all purposes of this Agreement, in the absence of actual
knowledge by an officer of the Master Servicer, the Master Servicer shall not be
deemed to have knowledge of any act or failure to act of any Servicer unless
notified thereof in writing by the Trustee, the Servicer or a Certificateholder.

            SECTION 10.06     SEVERABILITY OF PROVISIONS.

            If any one or more of the covenants, agreements, provisions or terms
of this Agreement shall be for any reason whatsoever held invalid, then such
covenants, agreements, provisions or terms shall be deemed severable from the
remaining covenants, agreements, provisions or terms of this Agreement and shall
in no way affect the validity or enforceability of the other provisions of this
Agreement or of the Certificates or the rights of the Holders thereof.

            SECTION 10.07     SPECIAL NOTICES TO RATING AGENCIES.

            (a) The Trustee shall give prompt notice to each Rating Agency of
the occurrence of any of the following events of which it has notice:

               (i) any amendment to this Agreement pursuant to Section 10.01(a);

               (ii) any sale or transfer of the Class B Certificates pursuant to
      Section 5.02 to an affiliate of the Seller;

               (iii) any assignment by the Master Servicer of its rights and
      delegation of its duties pursuant to Section 6.06;

               (iv) any resignation of the Master Servicer pursuant to Section
      6.04;

               (v) the occurrence of any of the Events of Default described in
      Section 7.01;

               (vi) any notice of termination given to the Master Servicer
      pursuant to Section 7.01;

               (vii) the appointment of any successor to the Master Servicer
      pursuant to Section 7.05; or

               (viii) the making of a final payment pursuant to Section 9.01.

            (b) The Master Servicer shall give prompt notice to each Rating
Agency of the occurrence of any of the following events:

               (i) the appointment of a Custodian pursuant to Section 2.02;

               (ii) the resignation or removal of the Trustee pursuant to
      Section 8.08;

               (iii) the appointment of a successor trustee pursuant to Section
      8.09; or

               (iv) the sale, transfer or other disposition in a single
      transaction of 50% or more of the equity interests in the Master Servicer.

            (c) The Master Servicer shall deliver to each Rating Agency:

               (i) reports prepared pursuant to Section 3.05; and

               (ii) statements prepared pursuant to Section 4.04.

            SECTION 10.08     COVENANT OF SELLER.

            The Seller shall not amend Article Third of its Certificate of
Incorporation without the prior written consent of each Rating Agency rating the
Certificates.

            SECTION 10.09     RECHARACTERIZATION.

            The Parties intend the conveyance by the Seller to the Trustee of
all of its right, title and interest in and to the Mortgage Loans pursuant to
this Agreement to constitute a purchase and sale and not a loan. Notwithstanding
the foregoing, to the extent that such conveyance is held not to constitute a
sale under applicable law, it is intended that this Agreement shall constitute a
security agreement under applicable law and that the Seller shall be deemed to
have granted to the Trustee a first priority security interest in all of the
Seller's right, title and interest in and to the Mortgage Loans.

<PAGE>


                                   ARTICLE XI

                             TERMS FOR CERTIFICATES

            SECTION 11.01     CUT-OFF DATE.

            The Cut-Off Date for the Certificates is January 1, 2000.

            SECTION 11.02     CUT-OFF DATE AGGREGATE PRINCIPAL BALANCE.

            The Cut-Off Date Aggregate Principal Balance is $200,628,453.52.

            SECTION 11.03     ORIGINAL GROUP I-A PERCENTAGE.

            The Original Group I-A Percentage is 96.22772620%.

            SECTION 11.04     ORIGINAL GROUP II-A PERCENTAGE.

            The Original Group II-A Percentage is 96.21758084%.

            SECTION 11.05     ORIGINAL PRINCIPAL BALANCES OF THE CLASSES OF
                              CLASS A CERTIFICATES.

            As to the following Classes of Class A Certificates, the Principal
Balance of such Class as of the Cut-Off Date, as follows:

                                                 Original
                       Class                Principal Balance
                       -----                -----------------

              Class I-A-1                   $ 62,731,000.00
              Class I-A-2                   $ 41,171,000.00
              Class I-A-3                   $ 19,755,900.00
              Class I-A-4                   $ 16,798,400.00
              Class I-A-5                   $ 19,027,000.00
              Class I-A-6                   $  8,500,000.00
              Class I-A-PO                  $  1,034,410.75
              Class I-A-R                   $        100.00
              Class II-A-1                  $ 20,616,000.00
              Class II-A-2                  $  3,256,600.00
              Class II-A-PO                 $    214,378.78

            SECTION 11.06     ORIGINAL AGGREGATE NON-PO PRINCIPAL BALANCE.

            The Original Aggregate Non-PO Principal Balance is $191,856,000.00.

            SECTION 11.07     ORIGINAL AGGREGATE SUBORDINATE PERCENTAGE.

            The Original Aggregate Subordinate Percentage is 3.77353630%.

            SECTION 11.08     ORIGINAL CLASS B PRINCIPAL BALANCE.

            The Original Class B Principal Balance is $7,523,663.99.

            SECTION 11.09     ORIGINAL GROUP I SUBORDINATED PRINCIPAL BALANCE.

            The Original Group I Subordinated Principal Balance is
$6,585,205.77.

            SECTION 11.10     ORIGINAL GROUP II SUBORDINATED PRINCIPAL
                              BALANCE.

            The Original Group II Subordinated Principal Balance is $938,458.22.

            SECTION 11.11     ORIGINAL PRINCIPAL BALANCES OF THE CLASSES OF
                              CLASS B CERTIFICATES.

            As to the following Classes of Class B Certificate, the Principal
Balance of such Class as of the Cut-Off Date, is as follows:

                                        Original
            Class                       Principal Balance
            -----                       -----------------
              Class B-1                   $  3,611,000.00
              Class B-2                   $  1,505,000.00
              Class B-3                   $    902,000.00
              Class B-4                   $    602,000.00
              Class B-5                   $    402,000.00
              Class B-6                   $    501,663.99

            SECTION 11.12     ORIGINAL CLASS B-1 FRACTIONAL INTEREST.

            The Original Class B-1 Fractional Interest is 1.96241879%.

            SECTION 11.13     ORIGINAL CLASS B-2 FRACTIONAL INTEREST.

            The Original Class B-2 Fractional Interest is 1.20757751%.

            SECTION 11.14     ORIGINAL CLASS B-3 FRACTIONAL INTEREST.

            The Original Class B-3 Fractional Interest is 0.75517430%.

            SECTION 11.15     ORIGINAL CLASS B-4 FRACTIONAL INTEREST.

            The Original Class B-4 Fractional Interest is 0.45323779%.

            SECTION 11.16     ORIGINAL CLASS B-5 FRACTIONAL INTEREST.

            The Original Class B-5 Fractional Interest is 0.25161241%.

            SECTION 11.17     CLOSING DATE.

            The Closing Date is January 28, 2000.

            SECTION 11.18     RIGHT TO PURCHASE.

            The right of the Seller to purchase all of the Mortgage Loans
pursuant to Section 9.01 hereof shall be conditioned upon the aggregate
Scheduled Principal Balance of the Mortgage Loans being less than $20,062,845.35
(10% of the Cut-Off Date Aggregate Principal Balance) at the time of any such
purchase.

            SECTION 11.19     WIRE TRANSFER ELIGIBILITY.

            With respect to the Class A Certificates (other than the Class
I-A-PO, Class I-A-R and Class II-A-PO Certificates) and the Class B Certificates
(other than the Class B-5 Certificates), the minimum Denomination eligible for
wire transfer on each Distribution Date is $500,000. With respect to the Class
I-A-PO and Class II-A-PO Certificates, the minimum Denomination eligible for
wire transfer on each Distribution Date is 100% Percentage Interest. The Class
I-A-R and Class B-5 Certificates are not eligible for wire transfer.

            SECTION 11.20     SINGLE CERTIFICATE.

            A Single Certificate for the Class I-A-1, Class I-A-2, Class I-A-4
and Class II-A-1 Certificates and each Class of Class B Certificates (other than
the Class B-4, Class B-5 and Class B-6 Certificates) represents a $100,000
Denomination. A Single Certificate for the Class I-A-3, Class I-A-5, Class I-A-6
and Class II-A-2 Certificates represents a $1,000 denomination. A Single
Certificate for the Class I-A-PO, Class II-A-PO and Class B-5 Certificates
represents a Denomination equal to the respective Original Principal Balance for
such Class. A Single Certificate for the Class I-A-R Certificate represents a
$100 Denomination. A Single Certificate for the Class B-4 and Class B-6
Certificates represents a $250,000 Denomination.

            SECTION 11.21     SERVICING FEE RATE.

            The rate used to calculate the Servicing Fee shall be equal to
0.250% per annum.

            SECTION 11.22     MASTER SERVICING FEE RATE.

            The rate used to calculate the Master Servicing Fee for each
Mortgage Loan shall be 0.017% per annum.

<PAGE>

            IN WITNESS WHEREOF, the Seller, the Master Servicer and the Trustee
have caused their names to be signed hereto by their respective officers
thereunto duly authorized, all as of the day and year first above written.

                                       NORWEST ASSET SECURITIES CORPORATION
                                            as Seller

                                       By:  ___________________________________
                                            Name:
                                            Title:


                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION

                                            as Master Servicer

                                       By:  ___________________________________
                                            Name:
                                            Title:


                                       FIRST UNION NATIONAL BANK
                                          as Trustee

                                       By:  ___________________________________
                                            Name:
                                            Title:



Attest:
By: ___________________________________
Name: _________________________________
Title: ________________________________

<PAGE>

STATE OF MARYLAND       )
                        ss.:
COUNTY OF FREDERICK     )

            On this 28th day of January, 2000, before me, a notary public in and
for the State of Maryland, personally Alan McKenney, known to me who, being by
me duly sworn, did depose and say that he resides at McLean, Virginia; that he
is Vice President of Norwest Asset Securities Corporation, a Delaware
corporation, one of the parties that executed the foregoing instrument; and that
he signed his name thereto by order of the Board of Directors of said
corporation.




_________________________
Notary Public

[NOTARIAL SEAL]

<PAGE>

STATE OF MARYLAND       )
                        ss.:
COUNTY OF FREDERICK     )

            On this 28th day of January, 2000, before me, a notary public in and
for the State of Maryland, personally appeared Brett Handelman, known to me who,
being by me duly sworn, did depose and say that he resides at Frederick,
Maryland; that he is an Officer of Norwest Bank Minnesota, National Association,
a national banking association, one of the parties that executed the foregoing
instrument; and that he signed his name thereto by order of the Board of
Directors of said corporation.




_________________________
Notary Public

[NOTARIAL SEAL]

<PAGE>

STATE OF NORTH CAROLINA       )
                              ss.:
COUNTY OF                     )

            On this 28th day of January, 2000, before me, a notary public in and
for the State of North Carolina, personally appeared ___________________, known
to me who, being by me duly sworn, did depose and say that s/he resides at
_________________, North Carolina; that s/he is a ____________________ of First
Union National Bank, a national banking association, one of the parties that
executed the foregoing instrument; and that s/he signed his/her name thereto by
order of the Board of Directors of said corporation.




_________________________
Notary Public

[NOTARIAL SEAL]

<PAGE>

STATE OF NORTH CAROLINA       )
                              ss.:
COUNTY OF                     )

            On this 28th day of January, 2000, before me, a notary public in and
for the State of North Carolina, personally appeared _____________________,
known to me who, being by me duly sworn, did depose and say that he resides at
__________________, North Carolina; that he is a _____________________ of First
Union National Bank, a national banking association, one of the parties that
executed the foregoing instrument; and that s/he signed his name thereto by
order of the Board of Directors of said corporation.

_________________________
Notary Public

[NOTARIAL SEAL]

<PAGE>

                                   SCHEDULE I

                    Norwest Asset Securities Corporation,
              Mortgage Pass-Through Certificates, Series 2000-1
               Applicable Unscheduled Principal Receipt Period

                                        Full Unscheduled     Partial Unscheduled
Servicer                               Principal Receipts     Principal Receipts
- --------                               ------------------     ------------------

Norwest Mortgage, Inc. (Exhibits F-1)      Prior Month           Prior Month
Norwest Mortgage, Inc. (Exhibits            Mid Month             Mid Month
   F-2A) and F-2B)
America First Credit Union                  Mid Month            Prior Month
HomeSide Lending                           Prior Month           Prior Month
Bank United                                 Mid Month            Prior Month
Chase Manhattan Mortgage Corporation        Mid Month            Prior Month
SunTrust Mortgage, Inc.                     Mid Month            Prior Month
The Huntington Mortgage Corporation         Mid Month            Prior Month
Keystone Financial Bank                     Mid Month            Prior Month
Firstar Bank, NA                            Mid Month            Prior Month
FT Mortgage Companies                       Mid Month            Prior Month
Morgan Stanely Dean Witter Credit          Prior Month           Prior Month
   Corporation
Merrill Lynch Credit Corporation           Prior Month           Prior Month

<PAGE>


                                 EXHIBIT A-I-A-1
                    [FORM OF FACE OF CLASS I-A-1 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-1

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-1 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-1 Certificates required to be
distributed to Holders of the Class I-A-1 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-1 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-1 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 98.82500%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
1.23541667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 7.65%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.02340013%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-2
                    [FORM OF FACE OF CLASS I-A-2 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-2

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-2 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-2 Certificates required to be
distributed to Holders of the Class I-A-2 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-2 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-2 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 99.40211%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
0.65830667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 7.54%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.01830069%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-3
                    [FORM OF FACE OF CLASS I-A-3 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-3

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-3 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-3 Certificates required to be
distributed to Holders of the Class I-A-3 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-3 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-3 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 91.40615%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
8.65426667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 8.31%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.02576309%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-4
                    [FORM OF FACE OF CLASS I-A-4 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-4

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-4 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-4 Certificates required to be
distributed to Holders of the Class I-A-4 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-4 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-4 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 96.29375%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
3.76666667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 7.77%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.01724088%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-5
                    [FORM OF FACE OF CLASS I-A-5 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-5

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-5 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-5 Certificates required to be
distributed to Holders of the Class I-A-5 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-5 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-5 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 95.87176%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
4.18865667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 8.14%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.04113697%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-6
                    [FORM OF FACE OF CLASS I-A-6 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-6

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-6 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-6 Certificates required to be
distributed to Holders of the Class I-A-6 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-6 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class I-A-6 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 94.66875%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 275% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
5.39166667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 8.11%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.03184265%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                EXHIBIT A-I-A-PO
                   [FORM OF FACE OF CLASS I-A-PO CERTIFICATE]

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN ACCORDANCE WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING THAT THE
TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT
SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS
AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS
AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL
EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.


<PAGE>





                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-PO

            evidencing an interest in a pool of fixed interest rate,
            conventional, monthly pay, fully amortizing, first lien,
     one- to four-family residential mortgage loans, which may include loans
          secured by shares issued by cooperative housing corporations,
                                     sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

                                 First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class I-A-PO Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-PO Certificates required to be
distributed to Holders of the Class I-A-PO Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement. The
Class I-A-PO Certificates are not entitled to distributions in respect of
interest.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class I-A-PO Certificate will be made unless such
transfer is exempt from the registration requirements of the Securities Act of
1933, as amended, and any applicable state securities laws or is made in
accordance with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof, (i) the transferee will be required to execute
an investment letter in the form described in the Agreement and (ii) if such
transfer is to be made within three years from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any affiliate thereof was a Holder of the Certificates proposed to be
transferred, and unless such transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended, the Trustee or the Seller may require the
Holder to deliver an opinion of counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller that such transfer is exempt
(describing the applicable exemption and the basis therefor) from or is being
made pursuant to the registration requirements of the Securities Act of 1933, as
amended, and of any applicable statute of any state. The Holder hereof desiring
to effect such transfer shall, and does hereby agree to, indemnify the Trustee,
the Seller, the Master Servicer, and any Paying Agent acting on behalf of the
Trustee against any liability that may result if the transfer is not so exempt
or is not made in accordance with such Federal and state laws. In connection
with any such transfer, the Trustee will also require (i) a representation
letter, in the form as described in the Agreement, stating that the transferee
is not a Plan and is not acting on behalf of a Plan or using the assets of a
Plan to effect such purchase or (ii) if such transferee is a Plan, (a) an
opinion of counsel acceptable to and in form and substance satisfactory to the
Trustee and the Seller with respect to certain matters and (b) such other
documentation as the Seller or the Master Servicer may require, as described in
the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, at an issue price of
61.12500% and a stated redemption price at maturity equal to its initial
principal balance, and is issued with original issue discount ("OID") for
federal income tax purposes. Assuming that this Certificate pays in accordance
with projected cash flows reflecting the prepayment assumption of 275% SPA (as
defined in the Prospectus Supplement dated January 21, 2000 with respect to the
offering of the Class A Certificates (except the Class I-A-PO and Class II-A-PO
Certificates), Class B-1, Class B-2 and Class B-3 Certificates) used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 38.87500000%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 10.09%;
and (iii) the amount of OID allocable to the short first accrual period (January
28, 2000 to February 25, 2000) as a percentage of the initial principal balance
of this Certificate, calculated using the exact method, is approximately
0.46231139%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                 EXHIBIT A-I-A-R
                    [Form of Face of Class I-A-R Certificate]

FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A "RESIDUAL INTEREST"
IN A "REAL ESTATE MORTGAGE INVESTMENT CONDUIT" AS THOSE TERMS ARE DEFINED,
RESPECTIVELY, IN SECTIONS 860G(a)(2) AND 860D OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"). A TRANSFEREE OF THIS CERTIFICATE, BY ACCEPTANCE
HEREOF, IS DEEMED TO HAVE ACCEPTED THIS CERTIFICATE SUBJECT TO CERTAIN
RESTRICTIONS ON TRANSFERABILITY, AS SET FORTH IN SECTION 5.02(d) OF THE POOLING
AND SERVICING AGREEMENT, AND SHALL BE REQUIRED TO FURNISH AN AFFIDAVIT TO THE
TRANSFEROR AND THE TRUSTEE TO THE EFFECT THAT, AMONG OTHER THINGS, IT IS NOT A
DISQUALIFIED ORGANIZATION, AS SUCH TERM IS DEFINED IN CODE SECTION 860E(e)(5),
AN AGENT (INCLUDING A BROKER, NOMINEE OR OTHER MIDDLEMAN) FOR A DISQUALIFIED
ORGANIZATION OR A NON-PERMITTED FOREIGN HOLDER, AS DEFINED IN SECTION 5.02(d) OF
THE POOLING AND SERVICING AGREEMENT AND TO HAVE AGREED TO SUCH AMENDMENTS TO THE
POOLING AND SERVICING AGREEMENT AS MAY BE REQUIRED TO FURTHER EFFECTUATE THE
RESTRICTIONS ON TRANSFERS TO DISQUALIFIED ORGANIZATIONS, AGENTS THEREOF OR
NON-PERMITTED FOREIGN HOLDERS.

THE HOLDER OF THIS CLASS I-A-R CERTIFICATE, BY ACCEPTANCE HEREOF, IS DEEMED TO
HAVE AGREED TO THE DESIGNATION OF THE MASTER SERVICER AS ITS AGENT TO ACT AS
"TAX MATTERS PERSON" OF THE REMIC TO PERFORM THE FUNCTIONS OF A "TAX MATTERS
PARTNER" FOR PURPOSES OF SUBCHAPTER C OF CHAPTER 63 OF SUBTITLE F OF THE CODE,
OR, IF SO REQUESTED BY THE MASTER SERVICER, TO ACT AS TAX MATTERS PERSON OF THE
REMIC.

THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO ANY PERSON WHICH IS
AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT SUBJECT TO TITLE I OF
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED ("ERISA"), OR
SECTION 4975 OF THE CODE OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL EXTENT,
SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY, A
"PLAN"), OR ANY PERSON ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.
<PAGE>



                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS I-A-R

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by


                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT __________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holder of the Class I-A-R Certificate with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
I-A Distribution Amount for the Class I-A-R Certificate required to be
distributed to Holders of the Class I-A-R Certificate on such Distribution Date,
subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group I-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class I-A-R Certificate applicable to each Distribution
Date will be 7.250% per annum. The amount of interest which accrues on this
Certificate in any month will be subject to reduction with respect to any
Non-Supported Interest Shortfall and the interest portion of certain Realized
Losses allocated to the Class I-A-R Certificate, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register.
Notwithstanding the above, the final distribution on this Certificate will be
made after due notice of the pendency of such distribution and only upon
presentation and surrender of this Certificate at the office or agency specified
by the Trustee for that purpose in the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                EXHIBIT A-II-A-1
                   [FORM OF FACE OF CLASS II-A-1 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS II-A-1

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class II-A-1 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
II-A Distribution Amount for the Class II-A-1 Certificates required to be
distributed to Holders of the Class II-A-1 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group II-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class II-A-1 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class II-A-1 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                EXHIBIT A-II-A-2
                   [FORM OF FACE OF CLASS II-A-2 CERTIFICATE]

  [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
     DEPOSITORY TRUST COMPANY TO THE SELLER OR ITS AGENT FOR REGISTRATION OF
 TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
       NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED
 REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE
 & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO
  ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
                                INTEREST HEREIN.]

                        MORTGAGE PASS-THROUGH CERTIFICATE
                           SERIES 2000-1, CLASS II-A-2

                    evidencing an interest in a pool of fixed
                    interest rate, conventional, monthly pay,
                      fully amortizing, first lien, one- to
                four-family residential mortgage loans, which may
                    include loans secured by shares issued by
                    cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030

            THIS CERTIFIES THAT ___________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class II-A-2 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
II-A Distribution Amount for the Class II-A-2 Certificates required to be
distributed to Holders of the Class II-A-2 Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement.
Distributions in reduction of the Principal Balance of certain Classes of Class
A Certificates may not commence on the first Distribution Date specified above.
Distributions of principal will be allocated among the Classes of Group II-A
Certificates in accordance with the provisions of the Agreement. The
pass-through rate on the Class II-A-2 Certificates applicable to each
Distribution Date will be 7.250% per annum. The amount of interest which accrues
on this Certificate in any month will be subject to reduction with respect to
any Non-Supported Interest Shortfall and the interest portion of certain
Realized Losses allocated to the Class II-A-2 Certificates, as described in the
Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 90.83145%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting the prepayment
assumption of 350% SPA (as defined in the Prospectus Supplement dated January
21, 2000 with respect to the offering of the Class A Certificates (except the
Class I-A-PO and Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3
Certificates) used to price this Certificate: (i) the amount of OID as a
percentage of the initial principal balance of this Certificate is approximately
9.22896667%; (ii) the annual yield to maturity of this Certificate, compounded
monthly, is approximately 8.48%; and (iii) the amount of OID allocable to the
short first accrual period (January 28, 2000 to February 25, 2000) as a
percentage of the initial principal balance of this Certificate, calculated
using the exact method, is approximately 0.03354675%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                EXHIBIT A-II-A-PO
                   [FORM OF FACE OF CLASS II-A-PO CERTIFICATE]

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN ACCORDANCE WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING THAT THE
TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT ARRANGEMENT
SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS
AMENDED ("ERISA") OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS
AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION 3(32) OF
ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A MATERIAL
EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE (COLLECTIVELY,
A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS OF A PLAN.


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                          SERIES 2000-1, CLASS II-A-PO

            evidencing an interest in a pool of fixed interest rate,
        conventional, monthly pay, fully amortizing, first lien, one- to
         four-family residential mortgage loans, which may include loans
          secured by shares issued by cooperative housing corporations,
                                     sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

                                 First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class II-A-PO Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively) formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and the Group
II-A Distribution Amount for the Class II-A-PO Certificates required to be
distributed to Holders of the Class II-A-PO Certificates on such Distribution
Date, subject to adjustment in certain events as specified in the Agreement. The
Class II-A-PO Certificates are not entitled to distributions in respect of
interest.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register.
Notwithstanding the above, the final distribution in reduction of the Principal
Balance of this Certificate will be made after due notice of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency specified by the Trustee for that purpose in the notice
of final distribution.

            No transfer of a Class II-A-PO Certificate will be made unless such
transfer is exempt from the registration requirements of the Securities Act of
1933, as amended, and any applicable state securities laws or is made in
accordance with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof, (i) the transferee will be required to execute
an investment letter in the form described in the Agreement and (ii) if such
transfer is to be made within three years from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any affiliate thereof was a Holder of the Certificates proposed to be
transferred, and unless such transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended, the Trustee or the Seller may require the
Holder to deliver an opinion of counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller that such transfer is exempt
(describing the applicable exemption and the basis therefor) from or is being
made pursuant to the registration requirements of the Securities Act of 1933, as
amended, and of any applicable statute of any state. The Holder hereof desiring
to effect such transfer shall, and does hereby agree to, indemnify the Trustee,
the Seller, the Master Servicer, and any Paying Agent acting on behalf of the
Trustee against any liability that may result if the transfer is not so exempt
or is not made in accordance with such Federal and state laws. In connection
with any such transfer, the Trustee will also require (i) a representation
letter, in the form as described in the Agreement, stating that the transferee
is not a Plan and is not acting on behalf of a Plan or using the assets of a
Plan to effect such purchase or (ii) if such transferee is a Plan, (a) an
opinion of counsel acceptable to and in form and substance satisfactory to the
Trustee and the Seller with respect to certain matters and (b) such other
documentation as the Seller or the Master Servicer may require, as described in
the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, at an issue price of
61.12500% and a stated redemption price at maturity equal to its initial
principal balance, and is issued with original issue discount ("OID") for
federal income tax purposes. Assuming that this Certificate pays in accordance
with projected cash flows reflecting the prepayment assumption of 350% SPA (as
defined in the Prospectus Supplement dated January 21, 2000 with respect to the
offering of the Class A Certificates (except the Class I-A-PO and Class II-A-PO
Certificates), Class B-1, Class B-2 and Class B-3 Certificates) used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately 38.87500000%; (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 11.46%;
and (iii) the amount of OID allocable to the short first accrual period (January
28, 2000 to February 25, 2000) as a percentage of the initial principal balance
of this Certificate, calculated using the exact method, is approximately
0.52516062%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                   EXHIBIT B-1
                     [FORM OF FACE OF CLASS B-1 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-1

           evidencing an interest in two pools of fixed interest rate,
     conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-1 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates as specified in the Agreement, any
Class B-1 Distribution Amount required to be distributed to Holders of the Class
B-1 Certificates on such Distribution Date, subject to adjustment, in certain
events, as specified in the Agreement. The pass-through rate on the Class B-1
Certificates applicable to each Distribution Date will be 7.250% per annum. The
amount of interest which accrues on this Certificate in any month will be
subject to reduction with respect to any Non-Supported Interest Shortfall and
the interest portion of certain Realized Losses allocated to the Class B-1
Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class B-1 Certificate will be made unless the
Holder hereof desiring to make any such transfer shall deliver to the Trustee
(i) a representation letter, in the form as described in the Agreement, stating
either (a) that the transferee is not a Plan and is not acting on behalf of a
Plan or using the assets of a Plan to effect such purchase or (b) subject to
certain conditions described in the Agreement, that the source of funds used to
purchase this Certificate is an "insurance company general account," or (ii) if
such transferee is a Plan, (a) an opinion of counsel acceptable to and in form
and substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 94.16875%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 5.89166667%; (ii)
the annual yield to maturity of this Certificate, compounded monthly, is
approximately 8.11%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.02899681%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>




5

                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES
AND THE CLASS B-1 CERTIFICATES AS DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-2

           evidencing an interest in two pools of fixed interest rate,
     conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-2 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and each Class of Class B
Certificates bearing a lower numerical designation as specified in the
Agreement, any Class B-2 Distribution Amount required to be distributed to
Holders of the Class B-2 Certificates on such Distribution Date, subject to
adjustment, in certain events, as specified in the Agreement. The pass-through
rate on the Class B-2 Certificates applicable to each Distribution Date will be
7.250% per annum. The amount of interest which accrues on this Certificate in
any month will be subject to reduction with respect to any Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-2 Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class B-2 Certificate will be made unless the
Holder hereof desiring to make any such transfer shall deliver to the Trustee
(i) a representation letter, in the form as described in the Agreement, stating
either (a) that the transferee is not a Plan and is not acting on behalf of a
Plan or using the assets of a Plan to effect such purchase or (b) subject to
certain conditions described in the Agreement, that the source of funds used to
purchase this Certificate is an "insurance company general account," or (ii) if
such transferee is a Plan, (a) an opinion of counsel acceptable to and in form
and substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 92.87188%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 7.18854167%; (ii)
the annual yield to maturity of this Certificate, compounded monthly, is
approximately 8.31%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.03504668%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>







                                   EXHIBIT B-3
                     [FORM OF FACE OF CLASS B-3 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES, THE CLASS B-1 CERTIFICATES AND THE CLASS B-2 CERTIFICATES AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-3

           evidencing an interest in two pools of fixed interest rate,
     conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-3 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and each Class of Class B
Certificates bearing a lower numerical designation as specified in the
Agreement, any Class B-3 Distribution Amount required to be distributed to
Holders of the Class B-3 Certificates on such Distribution Date, subject to
adjustment, in certain events, as specified in the Agreement. The pass-through
rate on the Class B-3 Certificates applicable to each Distribution Date will be
7.250% per annum. The amount of interest which accrues on this Certificate in
any month will be subject to reduction with respect to any Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-3 Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class B-3 Certificate will be made unless the
Holder hereof desiring to make any such transfer shall deliver to the Trustee
(i) a representation letter, in the form as described in the Agreement, stating
either (a) that the transferee is not a Plan and is not acting on behalf of a
Plan or using the assets of a Plan to effect such purchase or (b) subject to
certain conditions described in the Agreement, that the source of funds used to
purchase this Certificate is an "insurance company general account," or (ii) if
such transferee is a Plan, (a) an opinion of counsel acceptable to and in form
and substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 88.76755%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 11.29286667%;
(ii) the annual yield to maturity of this Certificate, compounded monthly, is
approximately 8.97%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.05345404%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                   EXHIBIT B-4
                     [FORM OF FACE OF CLASS B-4 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES, THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES AND THE
CLASS B-3 CERTIFICATES AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN.

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN ACCORDANCE WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-4

           evidencing an interest in two pools of fixed interest rate,
     conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-4 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and each Class of Class B
Certificates bearing a lower numerical designation as specified in the
Agreement, any Class B-4 Distribution Amount required to be distributed to
Holders of the Class B-4 Certificates on such Distribution Date, subject to
adjustment, in certain events, as specified in the Agreement. The pass-through
rate on the Class B-4 Certificates applicable to each Distribution Date will be
7.250% per annum. The amount of interest which accrues on this Certificate in
any month will be subject to reduction with respect to any Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-4 Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class B-4 Certificate will be made unless such
transfer is exempt from the registration requirements of the Securities Act of
1933, as amended, and any applicable state securities laws or is made in
accordance with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof, (i) the transferee will be required to execute
an investment letter in the form described in the Agreement and (ii) if such
transfer is to be made within three years from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any affiliate thereof was a Holder of the Certificates proposed to be
transferred, and unless such transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended, the Trustee or the Seller may require the
Holder to deliver an opinion of counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller that such transfer is exempt
(describing the applicable exemption and the basis therefor) from or is being
made pursuant to the registration requirements of the Securities Act of 1933, as
amended, and of any applicable statute of any state. The Holder hereof desiring
to effect such transfer shall, and does hereby agree to, indemnify the Trustee,
the Seller, the Master Servicer, and any Paying Agent acting on behalf of the
Trustee against any liability that may result if the transfer is not so exempt
or is not made in accordance with such Federal and state laws. In connection
with any such transfer, the Trustee will also require (i) a representation
letter, in the form as described in the Agreement, stating either (a) that the
transferee is not a Plan and is not acting on behalf of a Plan or using the
assets of a Plan to effect such purchase or (b) subject to certain conditions
described in the Agreement, that the source of funds used to purchase this
Certificate is an "insurance company general account," or (ii) if such
transferee is a Plan, (a) an opinion of counsel acceptable to and in form and
substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 74.26245%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 25.79796667%;
(ii) the annual yield to maturity of this Certificate, compounded monthly, is
approximately 11.72%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.10867209%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                   EXHIBIT B-5
                     [FORM OF FACE OF CLASS B-5 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES, THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES, THE CLASS
B-3 CERTIFICATES AND THE CLASS B-4 CERTIFICATES AS DESCRIBED IN THE POOLING AND
SERVICING AGREEMENT REFERRED TO HEREIN.

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN ACCORDANCE WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-5

           evidencing an interest in two pools of fixed interest rate,
     conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-5 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and each Class of Class B
Certificates bearing a lower numerical designation as specified in the
Agreement, any Class B-5 Distribution Amount required to be distributed to
Holders of the Class B-5 Certificates on such Distribution Date, subject to
adjustment, in certain events, as specified in the Agreement. The pass-through
rate on the Class B-5 Certificates applicable to each Distribution Date will be
7.250% per annum. The amount of interest which accrues on this Certificate in
any month will be subject to reduction with respect to any Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-5 Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register.
Notwithstanding the above, the final distribution in reduction of the Principal
Balance of this Certificate will be made after due notice of the pendency of
such distribution and only upon presentation and surrender of this Certificate
at the office or agency specified by the Trustee for that purpose in the notice
of final distribution.

            No transfer of a Class B-5 Certificate will be made unless such
transfer is exempt from the registration requirements of the Securities Act of
1933, as amended, and any applicable state securities laws or is made in
accordance with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof, (i) the transferee will be required to execute
an investment letter in the form described in the Agreement and (ii) if such
transfer is to be made within three years from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any affiliate thereof was a Holder of the Certificates proposed to be
transferred, and unless such transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended, the Trustee or the Seller may require the
Holder to deliver an opinion of counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller that such transfer is exempt
(describing the applicable exemption and the basis therefor) from or is being
made pursuant to the registration requirements of the Securities Act of 1933, as
amended, and of any applicable statute of any state. The Holder hereof desiring
to effect such transfer shall, and does hereby agree to, indemnify the Trustee,
the Seller, the Master Servicer, and any Paying Agent acting on behalf of the
Trustee against any liability that may result if the transfer is not so exempt
or is not made in accordance with such Federal and state laws. In connection
with any such transfer, the Trustee will also require (i) a representation
letter, in the form as described in the Agreement, stating either (a) that the
transferee is not a Plan and is not acting on behalf of a Plan or using the
assets of a Plan to effect such purchase or (b) subject to certain conditions
described in the Agreement, that the source of funds used to purchase this
Certificate is an "insurance company general account," or (ii) if such
transferee is a Plan, (a) an opinion of counsel acceptable to and in form and
substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 57.09035%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 42.97006667%;
(ii) the annual yield to maturity of this Certificate, compounded monthly, is
approximately 16.22%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.15045923%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                   EXHIBIT B-6
                     [FORM OF FACE OF CLASS B-6 CERTIFICATE]

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A
CERTIFICATES, THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES, THE CLASS
B-3 CERTIFICATES, THE CLASS B-4 CERTIFICATES AND THE CLASS B-5 CERTIFICATES AS
DESCRIBED IN THE POOLING AND SERVICING AGREEMENT REFERRED TO HEREIN.

THIS CERTIFICATE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE
RESOLD OR TRANSFERRED UNLESS IT IS REGISTERED PURSUANT TO SUCH ACT AND LAWS OR
IS SOLD OR TRANSFERRED IN TRANSACTIONS WHICH ARE EXEMPT FROM REGISTRATION UNDER
SUCH ACT AND UNDER APPLICABLE STATE LAW AND IS TRANSFERRED IN ACCORDANCE WITH
THE PROVISIONS OF SECTION 5.02 OF THE POOLING AND SERVICING AGREEMENT REFERRED
TO HEREIN.

EXCEPT AS PROVIDED IN SECTION 5.02(C) OF THE POOLING AND SERVICING AGREEMENT
REFERRED TO HEREIN, THIS CERTIFICATE MAY NOT BE PURCHASED BY OR TRANSFERRED TO
ANY PERSON THAT HAS NOT DELIVERED A REPRESENTATION LETTER STATING EITHER (A)
THAT THE TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR OTHER RETIREMENT
ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF
1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF
1986, AS AMENDED (THE "CODE"), OR A GOVERNMENTAL PLAN, AS DEFINED IN SECTION
3(32) OF ERISA, SUBJECT TO ANY FEDERAL, STATE OR LOCAL LAW WHICH IS, TO A
MATERIAL EXTENT, SIMILAR TO THE FOREGOING PROVISIONS OF ERISA OR THE CODE
(COLLECTIVELY, A "PLAN"), AND IS NOT ACTING ON BEHALF OF OR INVESTING THE ASSETS
OF A PLAN OR (B) SUBJECT TO CERTAIN CONDITIONS SET FORTH IN THE POOLING AND
SERVICING AGREEMENT, THAT THE SOURCE OF FUNDS USED TO PURCHASE THIS CERTIFICATE
IS AN "INSURANCE COMPANY GENERAL ACCOUNT."


<PAGE>




                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 2000-1, CLASS B-6

           evidencing an interest in two pools of fixed interest rate,
      conventional, monthly pay, fully amortizing, first lien, one- to four-
       family residential mortgage loans, which may include loans secured by
          shares issued by cooperative housing corporations, sold by

                      NORWEST ASSET SECURITIES CORPORATION
                (Not an interest in or obligation of the Seller)

            THIS CERTIFICATE DOES NOT EVIDENCE AN OBLIGATION OF, OR AN INTEREST
IN, THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR ANY OF THEIR AFFILIATES, AND
IS NOT INSURED OR GUARANTEED BY THE SELLER, THE MASTER SERVICER, THE TRUSTEE OR
ANY OF THEIR AFFILIATES, OR BY ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

            DISTRIBUTIONS IN REDUCTION OF THE PRINCIPAL BALANCE OF THIS
CERTIFICATE WILL BE MADE IN THE MANNER DESCRIBED IN THE POOLING AND SERVICING
AGREEMENT. ACCORDINGLY, THE OUTSTANDING PRINCIPAL BALANCE OF THIS CERTIFICATE AT
ANY TIME MAY BE LESS THAN THE INITIAL PRINCIPAL BALANCE REPRESENTED HEREBY.

Certificate No.                  Cut-Off Date:  January 1, 2000

CUSIP No.:                       First Distribution Date:  February 25, 2000

                                 Denomination: $

Percentage Interest evidenced
by this Certificate:   %         Final Scheduled Maturity Date:  February 25,
                                 2030


<PAGE>




            THIS CERTIFIES THAT ____________________________ is the registered
owner of the Percentage Interest evidenced by this Certificate in monthly
distributions to the Holders of the Class B-6 Certificates with respect to a
Trust Estate consisting of two pools of fixed interest rate, conventional,
monthly pay, fully amortizing, first lien, one- to four-family residential
mortgage loans, other than the Fixed Retained Yield, if any, with respect
thereto, and which may include loans secured by shares issued by cooperative
housing corporations (the "Group I Mortgage Loans" and "Group II Mortgage
Loans", respectively), formed by Norwest Asset Securities Corporation
(hereinafter called the "Seller", which term includes any successor entity under
the Agreement referred to below). The Trust Estate was created pursuant to a
Pooling and Servicing Agreement dated as of January 28, 2000 (the "Agreement")
among the Seller, Norwest Bank Minnesota, National Association, as master
servicer (the "Master Servicer") and First Union National Bank, as trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth hereinafter. To the extent not defined herein, the capitalized terms used
herein have the meanings ascribed to such terms in the Agreement. This
Certificate is issued under and is subject to the terms, provisions and
conditions of the Agreement, to which Agreement the Holder of this Certificate
by virtue of the acceptance hereof assents and by which such Holder is bound.

            Pursuant to the terms of the Agreement, a distribution will be made
on the 25th day of each month or, if such 25th day is not a Business Day, the
Business Day immediately following (the "Distribution Date"), commencing on the
first Distribution Date specified above, to the Person in whose name this
Certificate is registered at the close of business on the last Business Day of
the month preceding the month of such distribution, in an amount equal to the
product of the Percentage Interest evidenced by this Certificate and, subject to
the prior rights of the Class A Certificates and each Class of Class B
Certificates bearing a lower numerical designation as specified in the
Agreement, any Class B-6 Distribution Amount required to be distributed to
Holders of the Class B-6 Certificates on such Distribution Date, subject to
adjustment, in certain events, as specified in the Agreement. The pass-through
rate on the Class B-6 Certificates applicable to each Distribution Date will be
7.250% per annum. The amount of interest which accrues on this Certificate in
any month will be subject to reduction with respect to any Non-Supported
Interest Shortfall and the interest portion of certain Realized Losses allocated
to the Class B-6 Certificates, as described in the Agreement.

            Distributions on this Certificate will be made on behalf of the
Trustee either by the Master Servicer or by a Paying Agent appointed by the
Master Servicer by check mailed to the address of the Person entitled thereto,
as such name and address shall appear on the Certificate Register, unless such
Person is entitled to receive payments by wire transfer in immediately available
funds in accordance with the Pooling and Servicing Agreement and such Person has
notified the Master Servicer pursuant to the Pooling and Servicing Agreement
that such payments are to be made by wire transfer of immediately available
funds. Notwithstanding the above, the final distribution in reduction of the
Principal Balance of this Certificate will be made after due notice of the
pendency of such distribution and only upon presentation and surrender of this
Certificate at the office or agency specified by the Trustee for that purpose in
the notice of final distribution.

            No transfer of a Class B-6 Certificate will be made unless such
transfer is exempt from the registration requirements of the Securities Act of
1933, as amended, and any applicable state securities laws or is made in
accordance with said Act and laws. In the event that such a transfer is desired
to be made by the Holder hereof, (i) the transferee will be required to execute
an investment letter in the form described in the Agreement and (ii) if such
transfer is to be made within three years from the later of (a) the date of
initial issuance of the Certificates or (b) the last date on which the Seller or
any affiliate thereof was a Holder of the Certificates proposed to be
transferred, and unless such transfer is made in reliance on Rule 144A of the
Securities Act of 1933, as amended, the Trustee or the Seller may require the
Holder to deliver an opinion of counsel acceptable to and in form and substance
satisfactory to the Trustee and the Seller that such transfer is exempt
(describing the applicable exemption and the basis therefor) from or is being
made pursuant to the registration requirements of the Securities Act of 1933, as
amended, and of any applicable statute of any state. The Holder hereof desiring
to effect such transfer shall, and does hereby agree to, indemnify the Trustee,
the Seller, the Master Servicer, and any Paying Agent acting on behalf of the
Trustee against any liability that may result if the transfer is not so exempt
or is not made in accordance with such Federal and state laws. In connection
with any such transfer, the Trustee will also require (i) a representation
letter, in the form as described in the Agreement, stating either (a) that the
transferee is not a Plan and is not acting on behalf of a Plan or using the
assets of a Plan to effect such purchase or (b) subject to certain conditions
described in the Agreement, that the source of funds used to purchase this
Certificate is an "insurance company general account," or (ii) if such
transferee is a Plan, (a) an opinion of counsel acceptable to and in form and
substance satisfactory to the Trustee and the Seller with respect to certain
matters and (b) such other documentation as the Seller or the Master Servicer
may require, as described in the Agreement.

            Reference is hereby made to the further provisions of this
Certificate set forth on the reverse hereof, which further provisions shall for
all purposes have the same effect as if set forth at this place.

            This Certificate is issued on January 28, 2000, and based on its
issue price of 23.54375%, including accrued interest, and a stated redemption
price at maturity equal to its initial principal balance (plus 3 days of
interest at the pass-through rate hereon), is issued with original issue
discount ("OID") for federal income tax purposes. Assuming that this Certificate
pays in accordance with projected cash flows reflecting that the Group I
Mortgage Loans prepay at 275% SPA and that the Group II Mortgage Loans prepay at
350% SPA (as defined in the Prospectus Supplement dated January 21, 2000 with
respect to the offering of the Class A Certificates (except the Class I-A-PO and
Class II-A-PO Certificates), Class B-1, Class B-2 and Class B-3 Certificates)
used to price this Certificate: (i) the amount of OID as a percentage of the
initial principal balance of this Certificate is approximately 76.51666667%;
(ii) the annual yield to maturity of this Certificate, compounded monthly, is
approximately 37.94%; and (iii) the amount of OID allocable to the short first
accrual period (January 28, 2000 to February 25, 2000) as a percentage of the
initial principal balance of this Certificate, calculated using the exact
method, is approximately 0.12512173%.

            This Certificate constitutes a "regular interest" in a "real estate
mortgage investment conduit" as those terms are defined in Section 860G(a)(1)
and Section 860D, respectively, of the Internal Revenue Code of 1986, as
amended.

            Unless this Certificate has been countersigned by an authorized
officer of the Trustee, by manual signature, this Certificate shall not be
entitled to any benefit under the Agreement or be valid for any purpose.


<PAGE>





            IN WITNESS WHEREOF, the Trustee has caused this Certificate to be
duly executed as of the date set forth below.

Dated:


                                       First Union National Bank,
                                          Trustee



                                       By:____________________________________
                                          Authorized Officer

Countersigned:


First Union National Bank,
   Trustee



By:____________________________________
   Authorized Officer


<PAGE>








                                    EXHIBIT C
                 [Form of Reverse of Series 2000-1 Certificates]

                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 2000-1

            This Certificate is one of a duly authorized issue of Certificates
issued in several Classes designated as Mortgage Pass-Through Certificates of
the Series specified hereon (herein collectively called the "Certificates").

            The Certificates are limited in right of payment to certain
collections and recoveries respecting the Mortgage Loans, all as more
specifically set forth herein and in the Agreement. In the event funds are
advanced with respect to any Mortgage Loan by a Servicer, the Master Servicer or
the Trustee, such advances are reimbursable to such Servicer, the Master
Servicer or the Trustee to the extent provided in the Agreement, from related
recoveries on such Mortgage Loan or from other cash that would have been
distributable to Certificateholders.

            As provided in the Agreement, withdrawals from the Certificate
Account created for the benefit of Certificateholders may be made by the Master
Servicer from time to time for purposes other than distributions to
Certificateholders, such purposes including reimbursement to a Servicer, the
Master Servicer or the Trustee, as applicable, of advances made by such
Servicer, the Master Servicer or the Trustee.

            The Agreement permits, with certain exceptions therein provided, the
amendment of the Agreement and the modification of the rights and obligations of
the Seller, the Master Servicer, and the Trustee and the rights of the
Certificateholders under the Agreement at any time by the Seller, the Master
Servicer and the Trustee with the consent of the Holders of Certificates
evidencing in the aggregate not less than 66 2/3% of the Voting Interests of
each Class of Certificates affected thereby. Any such consent by the Holder of
this Certificate shall be conclusive and binding on such Holder and upon all
future holders of this Certificate and of any Certificate issued upon the
transfer hereof or in exchange hereof or in lieu hereof whether or not notation
of such consent is made upon the Certificate. The Agreement also permits the
amendment thereof in certain circumstances without the consent of the Holders of
any of the Certificates.

            As provided in the Agreement and subject to certain limitations
therein set forth, the transfer of this Certificate is registrable in the
Certificate Register upon surrender of this Certificate for registration of
transfer at the office or agency appointed by the Trustee, duly endorsed by, or
accompanied by an assignment in the form below or other written instrument of
transfer in form satisfactory to the Trustee and the Certificate Registrar, duly
executed by the Holder hereof or such Holder's attorney duly authorized in
writing, and thereupon one or more new Certificates of authorized Denominations
evidencing the same Class and aggregate Percentage Interest will be issued to
the designated transferee or transferees.

            The Certificates are issuable only as registered Certificates
without coupons in Classes and Denominations specified in the Agreement. As
provided in the Agreement and subject to certain limitations therein set forth,
Certificates are exchangeable for new Certificates of authorized Denominations
evidencing the same Class and aggregate Percentage Interest, as requested by the
Holder surrendering the same.

            No service charge will be made for any such registration of transfer
or exchange, but the Trustee or the Certificate Registrar may require payment of
a sum sufficient to cover any tax or other governmental charge payable in
connection therewith.

            The Seller, the Master Servicer, the Trustee and the Certificate
Registrar, and any agent of the Seller, the Master Servicer, the Trustee or the
Certificate Registrar, may treat the Person in whose name this Certificate is
registered as the owner hereof for all purposes, and neither the Seller, the
Master Servicer, the Trustee, the Certificate Registrar nor any such agent shall
be affected by notice to the contrary.

            The obligations created by the Agreement in respect of the
Certificates and the Trust Estate created thereby shall terminate upon the last
action required to be taken by the Trustee on the Final Distribution Date
pursuant to the Agreement following the earlier of (i) the payment or other
liquidation (or advance with respect thereto) of the last Mortgage Loan subject
thereto or the disposition of all property acquired upon foreclosure or deed in
lieu of foreclosure of any Mortgage Loan, and (ii) the purchase by the Seller
from the Trust Estate of all remaining Mortgage Loans and all property acquired
in respect of such Mortgage Loans; provided, however, that the Trust Estate will
in no event continue beyond the expiration of 21 years from the death of the
last survivor of the descendants of Joseph P. Kennedy, the late ambassador of
the United States to the Court of St. James, living on the date of the
Agreement. The Agreement permits, but does not require, the Seller to purchase
all remaining Mortgage Loans and all property acquired in respect of any
Mortgage Loan at a price determined as provided in the Agreement. The exercise
of such option will effect early retirement of the Certificates, the Seller's
right to exercise such option being subject to the Pool Scheduled Principal
Balance of the Mortgage Loans as of the Distribution Date upon which the
proceeds of such repurchase are distributed being less than ten percent of the
Cut-Off Date Aggregate Principal Balance.


<PAGE>




                                   ASSIGNMENT
                                   ----------


FOR VALUE  RECEIVED,  the undersigned  hereby sell(s), assign(s) and transfer(s)
unto ___________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
    (Please print or typewrite name and address including postal zip code of
                                    assignee)

the beneficial interest evidenced by the within Mortgage Pass-Through
Certificate and hereby authorizes the transfer of registration of such interest
to assignee on the Certificate Register of the Trust Estate.

            I (We) further direct the Certificate Registrar to issue a new
Certificate of a like Denomination or Percentage Interest and Class, to the
above named assignee and deliver such Certificate to the following address:

________________________________________________________________________________
________________________________________________________________________________

Social Security or other Identifying Number of Assignee:

Dated:



                                         _______________________________________
                                          Signature by or on behalf of assignor



                                         _______________________________________
                                                 Signature Guaranteed


<PAGE>




                            DISTRIBUTION INSTRUCTIONS

            The assignee should include the following for purposes of
distribution:

            Distributions shall be made, if the assignee is eligible to receive
distributions in immediately available funds, by wire transfer or otherwise, in
immediately available funds to _________________________________________________
for the account of _____________________________________________________________
account number _____________, or, if mailed by check, to _______________________
_______________________________________________________.  Applicable statements
should be mailed to ___________________________________________________________.

            This information is provided by ______________________, the assignee
named above, or ___________________________________, as its agent.


<PAGE>





                                    EXHIBIT D

                                    RESERVED


<PAGE>

                                    EXHIBIT E

                               CUSTODIAL AGREEMENT

            THIS CUSTODIAL AGREEMENT (as amended and supplemented from time to
time, the "Agreement"), dated as of _____________, by and among FIRST UNION
NATIONAL BANK, not individually, but solely as Trustee (including its successors
under the Pooling and Servicing Agreement defined below, the "Trustee"), NORWEST
ASSET SECURITIES CORPORATION (together with any successor in interest, the
"Seller"), NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION (together with any
successor in interest or successor under the Pooling and Servicing Agreement
referred to below, the "Master Servicer") and ___________________________
(together with any successor in interest or any successor appointed hereunder,
the "Custodian").

                           W I T N E S S E T H  T H A T
                           - - - - - - - - - -  - - - -

            WHEREAS, the Seller, the Master Servicer, and the Trustee, have
entered into a Pooling and Servicing Agreement dated as of January 28, 2000
relating to the issuance of Mortgage Pass-Through Certificates, Series 2000-1
(as in effect on the date of this Agreement, the "Original Pooling and Servicing
Agreement", and as amended and supplemented from time to time, the "Pooling and
Servicing Agreement"); and

            WHEREAS, the Custodian has agreed to act as agent for the Trustee
for the purposes of receiving and holding certain documents and other
instruments delivered by the Seller under the Pooling and Servicing Agreement,
all upon the terms and conditions and subject to the limitations hereinafter set
forth;

            NOW, THEREFORE, in consideration of the premises and the mutual
covenants and agreements hereinafter set forth, the Trustee, the Seller, the
Master Servicer and the Custodian hereby agree as follows:

                                    ARTICLE I

                                   Definitions

            Capitalized terms used in this Agreement and not defined herein
shall have the meanings assigned in the Original Pooling and Servicing
Agreement, unless otherwise required by the context herein.

                                   ARTICLE II

                          Custody of Mortgage Documents

            Section 2.1  Custodian to Act as Agent; Acceptance of Custodial
Files. The Custodian, as the duly appointed agent of the Trustee for these
purposes, acknowledges receipt of the Mortgage Notes, the Mortgages, the
assignments and other documents relating to the Mortgage Loans identified on the
schedule attached hereto and declares that it holds and will hold such Mortgage
Notes, Mortgages, assignments and other documents and any similar documents
received by the Trustee subsequent to the date hereof (the "Custodial Files") as
agent for the Trustee, in trust, for the use and benefit of all present and
future Certificateholders.

            Section 2.2  Recordation of Assignments. If any Custodial File
includes one or more assignments to the Trustee of Mortgage Notes and related
Mortgages that have not been recorded, each such assignment shall be delivered
by the Custodian to the Seller for the purpose of recording it in the
appropriate public office for real property records, and the Seller, at no
expense to the Custodian, shall promptly cause to be recorded in the appropriate
public office for real property records each such assignment and, upon receipt
thereof from such public office, shall return each such assignment to the
Custodian.

            Section 2.3 Review of Custodial Files. The Custodian agrees, for the
benefit of Certificateholders, to review, in accordance with the provisions of
Section 2.01 of the Pooling and Servicing Agreement, each Custodial File. If in
performing the review required by this Section 2.3 the Custodian finds any
document or documents constituting a part of a Custodial File to be missing or
defective in any material respect, the Custodian shall promptly so notify the
Seller, the Master Servicer and the Trustee.

            Section 2.4  Notification of Breaches of Representations and
Warranties. Upon discovery by the Custodian of a breach of any representation or
warranty made by the Seller or the Master Servicer as set forth in the Pooling
and Servicing Agreement, the Custodian shall give prompt written notice to the
Seller, the Master Servicer and the Trustee.

            Section 2.5 Custodian to Cooperate; Release of Custodial Files. Upon
the payment in full of any Mortgage Loan, or the receipt by the Master Servicer
of a notification that payment in full will be escrowed in a manner customary
for such purposes, the Master Servicer shall immediately notify the Custodian by
a certification (which certification shall include a statement to the effect
that all amounts received or to be received in connection with such payment
which are required to be deposited in the Certificate Account pursuant to
Section 3.02 of the Pooling and Servicing Agreement have been or will be so
deposited) of a Servicing Officer and shall request delivery to it of the
Custodial File. The Custodian agrees, upon receipt of such certification and
request, promptly to release the related Custodial File to the Master Servicer.

            From time to time as is appropriate for the servicing or foreclosure
of any Mortgage Loan, the Master Servicer shall deliver to the Custodian a
certificate of a Servicing Officer requesting that possession of all, or any
document constituting part of, the Custodial File be released to the Master
Servicer and certifying as to the reason for such release and that such release
will not invalidate any insurance coverage provided in respect of the Mortgage
Loan. With such certificate, the Master Servicer shall deliver to the Custodian
a receipt signed by a Servicing Officer on behalf of the Master Servicer, and
upon receipt of the foregoing, the Custodian shall deliver the Custodial File or
such document to the Master Servicer. The Master Servicer shall cause each
Custodial File or any document therein so released to be returned to the
Custodian when the need therefor by the Master Servicer no longer exists, unless
(i) the Mortgage Loan has been liquidated and the Liquidation Proceeds relating
to the Mortgage Loan have been deposited in the Certificate Account to the
extent required by the Pooling and Servicing Agreement or (ii) the Custodial
File or such document has been delivered to an attorney, or to a public trustee
or other public official as required by law, for purposes of initiating or
pursuing legal action or other proceedings for the foreclosure of the Mortgaged
Property either judicially or non-judicially, and the Master Servicer has
delivered to the Custodian a certificate of a Servicing Officer certifying as to
the name and address of the Person to which such Custodial File or such document
were delivered and the purpose or purposes of such delivery. In the event of the
liquidation of a Mortgage Loan, the Custodian shall deliver such receipt with
respect thereto to the Master Servicer upon deposit of the related Liquidation
Proceeds in the Certificate Account to the extent required by the Pooling and
Servicing Agreement.

            Section 2.6  Assumption Agreements. In the event that any assumption
agreement or substitution of liability agreement is entered into with respect to
any Mortgage Loan subject to this Agreement in accordance with the terms and
provisions of the Pooling and Servicing Agreement, the Master Servicer shall
notify the Custodian that such assumption or substitution agreement has been
completed by forwarding to the Custodian the original of such assumption or
substitution agreement, which copy shall be added to the related Custodial File
and, for all purposes, shall be considered a part of such Custodial File to the
same extent as all other documents and instruments constituting parts thereof.

                                  ARTICLE III

                            Concerning the Custodian

            Section 3.1  Custodian a Bailee and Agent of the Trustee. With
respect to each Mortgage Note, Mortgage and other documents constituting each
Custodian File which are delivered to the Custodian, the Custodian is
exclusively the bailee and agent of the Trustee, holds such documents for the
benefit of Certificateholders and undertakes to perform such duties and only
such duties as are specifically set forth in this Agreement. Except upon
compliance with the provisions of Section 2.5 of this Agreement, no Mortgage
Note, Mortgage or other document constituting a part of a Custodial File shall
be delivered by the Custodian to the Seller or the Master Servicer or otherwise
released from the possession of the Custodian.

            Section 3.2  Indemnification. The Seller hereby agrees to indemnify
and hold the Custodian harmless from and against all claims, liabilities,
losses, actions, suits or proceedings at law or in equity, or any other
expenses, fees or charges of any character or nature, which the Custodian may
incur or with which the Custodian may be threatened by reasons of its acting as
custodian under this Agreement, including indemnification of the Custodian
against any and all expenses, including attorney's fees if counsel for the
Custodian has been approved by the Seller, and the cost of defending any action,
suit or proceedings or resisting any claim. Notwithstanding the foregoing, it is
specifically understood and agreed that in the event any such claim, liability,
loss, action, suit or proceeding or other expense, fees, or charge shall have
been caused by reason of any negligent act, negligent failure to act, or willful
misconduct on the part of the Custodian, or which shall constitute a willful
breach of its duties hereunder, the indemnification provisions of this Agreement
shall not apply.

            Section 3.3  Custodian May Own Certificates. The Custodian in its
individual or any other capacity may become the owner or pledgee of Certificates
with the same rights it would have if it were not Custodian.

            Section 3.4  Master Servicer to Pay Custodian's Fees and Expenses.
The Master Servicer covenants and agrees to pay to the Custodian from time to
time, and the Custodian shall be entitled to, reasonable compensation for all
services rendered by it in the exercise and performance of any of the powers and
duties hereunder of the Custodian, and the Master Servicer will pay or reimburse
the Custodian upon its request for all reasonable expenses, disbursements and
advances incurred or made by the Custodian in accordance with any of the
provisions of this Agreement (including the reasonable compensation and the
expenses and disbursements of its counsel and of all persons not regularly in
its employ), except any such expense, disbursement or advance as may arise from
its negligence or bad faith.

            Section 3.5  Custodian May Resign; Trustee May Remove Custodian. The
Custodian may resign from the obligations and duties hereby imposed upon it as
such obligations and duties relate to its acting as Custodian of the Mortgage
Loans. Upon receiving such notice of resignation, the Trustee shall either take
custody of the Custodial Files itself and give prompt notice thereof to the
Seller, the Master Servicer and the Custodian or promptly appoint a successor
Custodian by written instrument, in duplicate, one copy of which instrument
shall be delivered to the resigning Custodian and one copy to the successor
Custodian. If the Trustee shall not have taken custody of the Custodial Files
and no successor Custodian shall have been so appointed and have accepted
resignation, the resigning Custodian may petition any court of competent
jurisdiction for the appointment of a successor Custodian.

            The Trustee may remove the Custodian at any time. In such event, the
Trustee shall appoint, or petition a court of competent jurisdiction to appoint,
a successor Custodian hereunder. Any successor Custodian shall be a depository
institution subject to supervision or examination by federal or state authority
and shall be able to satisfy the other requirements contained in Section 3.7.

            Any resignation or removal of the Custodian and appointment of a
successor Custodian pursuant to any of the provisions of this Section 3.5 shall
become effective upon acceptance of appointment by the successor Custodian. The
Trustee shall give prompt notice to the Seller and the Master Servicer of the
appointment of any successor Custodian. No successor Custodian shall have been
appointed and accepted appointment by the Trustee without the prior approval of
the Seller and the Master Servicer.

            Section 3.6  Merger or Consolidation of Custodian. Any Person into
which the Custodian may be merged or converted or with which it may be
consolidated, or any Person resulting from any merger, conversion or
consolidation to which the Custodian shall be a party, or any Person succeeding
to the business of the Custodian, shall be the successor of the Custodian
hereunder, without the execution or filing of any paper or any further act on
the part of any of the parties hereto, anything herein to the contrary
notwithstanding.

            Section 3.7  Representations of the Custodian. The Custodian hereby
represents that it is a depository institution subject to supervision or
examination by a federal or state authority, has a combined capital and surplus
of at least $10,000,000 and is qualified to do business in the jurisdiction in
which it will hold any Custodian File.

                                   ARTICLE IV

                            Miscellaneous Provisions

            Section 4.1 Notices. All notices, requests, consents and demands and
other communications required under this Agreement or pursuant to any other
instrument or document delivered hereunder shall be in writing and, unless
otherwise specifically provided, may be delivered personally, by telegram or
telex, or by registered or certified mail, postage prepaid, return receipt
requested, at the addresses specified on the signature page hereof (unless
changed by the particular party whose address is stated herein by similar notice
in writing), in which case the notice will be deemed delivered when received.

            Section 4.2  Amendments. No modification or amendment of or
supplement to this Agreement shall be valid or effective unless the same is in
writing and signed by all parties hereto, and neither the Seller, the Master
Servicer nor the Trustee shall enter into any amendment hereof except as
permitted by the Pooling and Servicing Agreement. The Trustee shall give prompt
notice to the Custodian of any amendment or supplement to the Pooling and
Servicing Agreement and furnish the Custodian with written copies thereof.

            SECTION 4.3 GOVERNING LAW. THIS AGREEMENT SHALL BE DEEMED A CONTRACT
MADE UNDER THE LAWS OF THE STATE OF NEW YORK AND SHALL BE CONSTRUED AND ENFORCED
IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.

            Section 4.4  Recordation of Agreement. To the extent permitted by
applicable law, this Agreement is subject to recordation in all appropriate
public offices for real property records in all the counties or other comparable
jurisdictions in which any or all of the properties subject to the Mortgages are
situated, and in any other appropriate public recording office or elsewhere,
such recordation to be effected by the Master Servicer and at its expense on
direction by the Trustee, but only upon direction accompanied by an Opinion of
Counsel to the effect that such recordation materially and beneficially affects
the interests of the Certificateholders.

            For the purpose of facilitating the recordation of this Agreement as
herein provided and for other purposes, this Agreement may be executed
simultaneously in any number of counterparts, each of which counterparts shall
be deemed to be an original, and such counterparts shall constitute but one and
the same instrument.

            Section 4.5  Severability of Provisions. If any one or more of the
covenants, agreements, provisions or terms of this Agreement shall be for any
reason whatsoever held invalid, then such covenants, agreements, provisions or
terms shall be deemed severable from the remaining covenants, agreements,
provisions or terms of this Agreement and shall in no way affect the validity or
enforceability of the other provisions of this Agreement or of the Certificates
or the rights of the holders thereof.

<PAGE>





            IN WITNESS WHEREOF, this Agreement is executed as of the date first
above written.

Address:                              FIRST UNION NATIONAL BANK



401 South Tryon Street                By:__________________________________
Charlotte, North Carolina, 28202         Name:_____________________________
                                         Title:____________________________


Address:                              NORWEST ASSET SECURITIES CORPORATION



7485 New Horizon Way                  By:__________________________________
Frederick, Maryland 21703                Name:_____________________________
                                         Title:____________________________


Address:                              NORWEST BANK MINNESOTA, NATIONAL
                                         ASSOCIATION

7485 New Horizon Way

Frederick, Maryland 21703             By:__________________________________
                                         Name:_____________________________
                                         Title:____________________________


Address:                              [CUSTODIAN]



                                      By:__________________________________
                                         Name:_____________________________
                                         Title:____________________________




<PAGE>






STATE OF                )
                        )  ss.:
COUNTY OF               )


            On this ____ day of _________, 19__, before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me who, being by me duly sworn, did depose and say that he resides at
__________________________; that he is the __________ of Norwest Asset
Securities Corporation a Delaware corporation, one of the parties that executed
the foregoing instrument; and that he signed his name thereto by order of the
Board of Directors of said corporation.



                                              __________________________________
                                                       Notary Public

             [NOTARIAL SEAL]





<PAGE>






STATE OF                )
                        )  ss.:
COUNTY OF               )


            On this ____ day of _________, 19__, before me, a notary public in
and for the State of ____________, personally appeared _______________, known to
me who, being by me duly sworn, did depose and say that he resides at
__________________________; that he is the __________ of Norwest Bank Minnesota,
National Association, a national banking association, one of the parties that
executed the foregoing instrument; and that he signed his name thereto by order
of the Board of Directors of said corporation.




                                              __________________________________
                                                       Notary Public

             [NOTARIAL SEAL]





<PAGE>






STATE OF                )
                        )  ss.:
COUNTY OF               )


            On this ___ day of ________, 19__, before me, a notary public in and
for the State of ____________, personally appeared __________ _________, known
to me who, being by me duly sworn, did depose and say that he resides at
__________________________; that he is the ____________________ of First Union
National Bank, a national banking association, one of the parties that executed
the foregoing instrument; and that he signed his name thereto by order of the
Board of Directors of said association.




                                              __________________________________
                                                       Notary Public

             [NOTARIAL SEAL]





<PAGE>






STATE OF                )
                        )  ss.:
COUNTY OF               )


            On this ____ day of ________, 19 , before me, a notary public in and
for the State of __________, personally appeared __________ __________, known to
me who, being by me duly sworn, did depose and say that he resides at
__________________________; that he is the _______________________ of
______________________, a _________________________, one of the parties that
executed the foregoing instrument; and that he signed his name thereto by order
of the Board of Directors of said association




                                              __________________________________
                                                       Notary Public

             [NOTARIAL SEAL]





<PAGE>





                                   EXHIBIT F-1

        [Schedule of Group I Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]

<TABLE>
<CAPTION>
NASCOR
NMI  2000-01  Exhibit F-1
30 YEAR FIXED RATE NON RELOCATION  LOANS


(i)        (ii)                                            (iii)           (iv)             (v)                (vi)
- -----      ------------------   -----        -----        --------       --------        --------           ----------
                                                                                            NET
MORTGAGE                                                                 MORTGAGE        MORTGAGE            CURRENT
LOAN                                          ZIP         PROPERTY       INTEREST        INTEREST            MONTHLY
NUMBER     CITY                 STATE         CODE          TYPE           RATE            RATE              PAYMENT
- --------   -----------------------------------------      --------       --------        --------           ----------
<S>        <C>                   <C>       <C>             <C>           <C>             <C>              <C>
7403341    SILVER SPRING          MD         20906          PUD            6.875           6.608            $ 1,576.63
7573797    INDEPENDENCE           MN         55359          SFD            7.000           6.733            $ 3,612.59
7605505    PLYMOUTH               MI         48170          SFD            7.625           7.250            $ 2,123.39
7620519    CHICAGO                IL         60613          MF2            6.875           6.608            $ 1,977.36
7696731    CHICAGO                IL         60657          SFD            6.875           6.608            $ 1,970.79
7727455    CHICAGO                IL         60622          SFD            6.875           6.608            $ 1,799.00
7918701    NILES                  IL         60714          SFD            7.875           7.250            $ 2,204.21
7925653    CHICAGO                IL         60614          MF2            7.875           7.250            $ 2,691.46



NASCOR
NMI  2000-01  Exhibit F-1
30 YEAR FIXED RATE NON RELOCATION  LOANS

(Continued)

(i)          (vii)         (viii)             (ix)             (x)       (xi)          (xii)      (xiii)        (xv)        (xvI)
- -----       --------     ----------      --------------      ------    ---------     ----------  --------   -----------  -----------
                                             CUT-OFF
MORTGAGE    ORIGINAL     SCHEDULED            DATE                                    MORTGAGE                 MASTER       FIXED
LOAN        TERM TO       MATURITY          PRINCIPAL                                INSURANCE   SERVICE      SERVICE      RETAINED
NUMBER      MATURITY        DATE             BALANCE           LTV      SUBSIDY         CODE       FEE          FEE         YIELD
- --------    --------    -----------      --------------      ------    ---------     ----------  --------   -----------  -----------
7403341       360         1-Jan-29        $ 237,397.44        77.29                               0.250        0.017        0.000
7573797       360         1-Feb-29        $ 537,958.67        75.00                               0.250        0.017        0.000
7605505       360         1-May-29        $ 118,739.46        80.00                               0.250        0.017        0.108
7620519       360         1-Apr-29        $ 298,189.34        76.20                               0.250        0.017        0.000
7696731       360         1-Jun-29        $ 298,082.75        63.42                               0.250        0.017        0.000
7727455       360         1-Jul-29        $ 272,449.67        78.24                               0.250        0.017        0.000
7918701       360         1-Oct-29        $ 303,368.25        80.00                               0.250        0.017        0.358
7925653       360         1-Oct-29        $ 370,428.58        70.04                               0.250        0.017        0.358

                                        $ 2,436,614.16


COUNT:                                             8
WAC:                                      7.21567612
WAM:                                     352.5541752
WALTV:                                   74.42773821

</TABLE>

<PAGE>

<TABLE>
<CAPTION>


                                  EXHIBIT F-2A

 [Schedule of Group I Mortgage Loans Serviced by Norwest Mortgage in Frederick,
                                    Maryland]


NASCOR
NMI / 2000-01  Exhibit F-2A
30 YEAR FIXED RATE NON RELOCATION  LOANS


(i)          (ii)                                            (iii)         (iv)             (v)                (vi)
- -----        -----------------------   -----       -----    --------     --------        --------           ----------
                                                                                            NET
MORTGAGE                                                                 MORTGAGE        MORTGAGE            CURRENT
LOAN                                                ZIP     PROPERTY     INTEREST        INTEREST            MONTHLY
NUMBER       CITY                      STATE       CODE       TYPE         RATE            RATE              PAYMENT
- --------     -------------------------------------------    --------     --------        --------           ----------
<S>         <C>                        <C>        <C>       <C>          <C>             <C>              <C>
4863993      BRONXVILLE                  NY        10708      SFD          7.000           6.733            $ 3,911.98
4935804      TOPSFIELD                   MA        01983      SFD          6.750           6.483            $ 2,270.10
4954646      NEW YORK                    NY        10019      COP          6.875           6.608             $ 472.99
4971356      BASTROP                     TX        78602      SFD          8.125           7.250            $ 2,227.50
4979734      COLORADO SPRINGS            CO        80919      SFD          7.750           7.250            $ 5,089.89
4980829      WESTWOOD                    MA        02090      SFD          7.375           7.108            $ 2,403.55
4986594      PITTSTOWN                   NJ        08867      SFD          8.500           7.250            $ 2,588.17
4988797      WATERFORD                   VA        20197      SFD          7.500           7.233            $ 3,705.84
4999895      BRIDGEWATER                 NJ        08807      SFD          8.375           7.250            $ 2,736.27
5001493      WINCHESTER                  MA        01890      SFD          7.125           6.858            $ 2,243.48
5003385      MURPHYS                     CA        95247      SFD          7.375           7.108             $ 994.58
5013091      MANHASSET HILLS             NY        11040      SFD          7.125           6.858            $ 2,088.53
5013591      MORRISTOWN                  NJ        07960      SFD          8.250           7.250            $ 2,636.95
5013644      BROOMALL                    PA        19008      SFD          7.125           6.858            $ 1,886.42
5013711      ASHBURN                     VA        20147      SFD          9.000           7.250            $ 2,340.25
5014813      WESTHAMPTON                 NY        11977      SFD          8.750           7.250            $ 1,957.71
5017687      HOPKINTON                   MA        01748      SFD          7.375           7.108            $ 2,520.97
5018993      SOUTHLAKE                   TX        76092      SFD          7.875           7.250            $ 2,843.44
5022266      CARY                        NC        27511      SFD          7.875           7.250            $ 2,103.84
5028974      FAIRVIEW HEIGHTS            IL        62208      SFD          7.125           6.858            $ 1,953.79
5035111      WAKE FOREST                 NC        27587      SFD          7.625           7.250            $ 1,949.55
5042829      WHITE PLAINS                NY        10601      SFD          8.125           7.250            $ 2,272.05
5042860      NORTH KINGSTOWN             RI        02874      SFD          7.125           6.858            $ 2,088.53
5045570      LEESBURG                    VA        20176      SFD          7.875           7.250            $ 2,175.21
5056182      DANVILLE                    CA        94506      SFD          8.000           7.250            $ 2,458.12
5059855      NEW YORK                    NY        10021      COP          8.500           7.250            $ 1,445.56
5062738      DANVILLE                    CA        94506      SFD          7.375           7.108            $ 2,791.59
5071083      MCLEAN                      VA        22101      SFD          7.500           7.233            $ 2,718.55
5071358      BAKERSFIELD                 CA        93312      SFD          8.125           7.250            $ 2,044.96
5073620      HOOVER                      AL        35242      SFD          7.875           7.250            $ 3,045.88
5074318      WESTPORT                    CT        06880      SFD          7.750           7.250            $ 2,593.42
5076175      LOWER GWYNEDD               PA        19002      SFD          7.875           7.250            $ 2,465.24
5078401      ANN ARBOR                   MI        48108      SFD          8.250           7.250            $ 2,499.26
5079191      LONG VALLEY                 NJ        07853      SFD          7.875           7.250            $ 2,256.42
5081333      WASHINGTON CROSSING         PA        18977      SFD          7.500           7.233            $ 2,350.10
5081342      ARLINGTON                   VA        22201      SFD          8.000           7.250            $ 2,705.03
5082751      DARIEN                      CT        06820      SFD          7.875           7.250            $ 2,283.97
5083523      ANKENY                      IA        50021      SFD          8.500           7.250            $ 2,614.31
5086119      ANDOVER                     MA        01810      SFD          8.250           7.250            $ 4,946.34
5087460      TRACY                       CA        95376      SFD          7.875           7.250            $ 2,074.23
5089128      MISSION VIEJO               CA        92692      PUD          8.250           7.250            $ 2,182.06
5091564      HIGH POINT                  NC        27265      SFD          8.250           7.250            $ 2,805.99
5092896      LEESBURG                    VA        20175      SFD          7.500           7.233            $ 1,992.76
5093008      FOREST HILLS                NY        11375      SFD          7.875           7.250            $ 2,763.97
5093149      BOONTON                     NJ        07005      SFD          8.250           7.250            $ 1,953.30
5093833      LINCOLN                     MA        01773      SFD          7.875           7.250            $ 2,864.03
5094564      MIDDLETON                   MA        01949      LCO          8.500           7.250            $ 2,373.29
5094896      ROSWELL                     GA        30075      SFD          7.500           7.233            $ 2,525.43
5094932      HEBRON                      CT        06248      SFD          9.000           7.250            $ 2,063.86
5095821      DRAPER                      UT        84020      SFD          7.750           7.250            $ 2,360.23
5096146      OCEANSIDE                   CA        92056      SFD          8.500           7.250            $ 2,466.63
5096645      BROOKLYN                    NY        11209      SFD          8.125           7.250            $ 2,238.63
5096760      NEW YORK                    NY        10013      HCO          8.375           7.250            $ 4,940.47
5098208      BEAUMONT                    TX        77706      SFD          8.375           7.250            $ 2,280.22
5098459      ALEXANDRIA                  VA        22314      SFD          7.250           6.983            $ 2,193.20
5099124      MISSION VIEJO               CA        92692      SFD          6.875           6.608            $ 2,764.36
5100214      YORKTOWN                    NY        10598      SFD          8.625           7.250            $ 3,733.40
5101307      SAN CARLOS                  CA        94070      SFD          7.625           7.250            $ 3,595.60
5102522      EAST HAMPTON                NY        11937      SFD          8.500           7.250            $ 2,450.92
5103844      DANVILLE                    CA        94506      SFD          6.625           6.358            $ 2,084.22
5104052      SAN CARLOS                  CA        94070      SFD          7.750           7.250            $ 5,073.99
5104265      OAKTON                      VA        22124      SFD          7.875           7.250            $ 3,248.32
5104710      STAMFORD                    CT        06903      SFD          7.500           7.233            $ 2,048.70
5104752      NORTHPORT                   NY        11768      SFD          7.500           7.233            $ 1,957.81
5104802      TAYLORSVILLE                UT        84084      SFD          8.250           7.250            $ 2,028.42
5105182      SCOTTSDALE                  AZ        85262      SFD          8.250           7.250            $ 2,376.26
5105293      ANNAPOLIS                   MD        21403      LCO          7.875           7.250            $ 2,523.25
5105569      HOUSTON                     TX        77055      SFD          7.875           7.250            $ 2,001.20
5105948      CHESTERFIELD                MO        63017      SFD          7.875           7.250            $ 2,486.99
5106362      REDLANDS                    CA        92373      SFD          8.375           7.250            $ 3,040.29
5106600      O'FALLON                    IL        62269      SFD          8.750           7.250             $ 432.69
5106880      NATICK                      MA        01760      SFD          8.000           7.250            $ 2,494.80
5107377      MADISON                     AL        35758      SFD          8.000           7.250            $ 2,377.31
5107573      BETHESDA                    MD        20816      SFD          6.875           6.608            $ 3,705.08
5107760      VIENNA                      VA        22182      SFD          7.625           7.250            $ 2,315.55
5107903      CINCINNATI                  OH        45244      SFD          7.625           7.250            $ 2,760.40
5108687      LIBERTYVILLE                IL        60048      SFD          7.875           7.250            $ 2,320.23
5108720      LONG GROVE                  IL        60047      SFD          8.250           7.250            $ 3,380.70
5109496      PORTLAND                    OR        97201      SFD          8.375           7.250            $ 2,090.20
5109535      COPPELL                     TX        75019      SFD          8.375           7.250            $ 1,985.31
5109809      BUCKINGHAM                  PA        18912      SFD          7.250           6.983            $ 3,847.48
5110061      NAPERVILLE                  IL        60564      SFD          7.875           7.250            $ 2,247.72
5110108      OAKLAND                     NJ        07436      PUD          8.250           7.250            $ 2,255.95
5110171      FRANKLIN                    PA        19350      SFD          8.125           7.250            $ 2,079.00
5110649      GLEN RIDGE                  NJ        07028      SFD          7.500           7.233            $ 2,660.52
5110672      PLAINSBORO                  NJ        08536      SFD          8.250           7.250            $ 2,719.59
5110706      PRESCOTT                    AZ        86305      SFD          8.375           7.250            $ 2,189.01
5111239      FAIRFIELD                   CT        06430      SFD          7.625           7.250            $ 4,416.64
5111355      LEWISVILLE                  TX        75022      SFD          8.125           7.250            $ 4,057.00
5111703      LUTZ                        FL        33549      SFD          7.250           6.983            $ 1,943.66
5111887      NAPERVILLE                  IL        60564      SFD          7.500           7.233            $ 2,097.65
5111926      YARDLEY                     PA        19067      SFD          7.250           6.983            $ 2,251.19
5111966      EAST GREENWICH              RI        02818      SFD          8.000           7.250            $ 2,260.00
5112014      PLEASANTVILLE               NY        10570      SFD          8.000           7.250            $ 3,707.72
5112204      MADISON                     NJ        07940      SFD          8.250           7.250            $ 2,253.80
5112516      HUNTINGTON BEACH            CA        92646      SFD          7.500           7.233            $ 1,908.86
5112530      PLEASANTON                  CA        94566      SFD          7.625           7.250            $ 4,742.22
5112587      STERLING                    VA        20165      SFD          7.750           7.250            $ 1,918.85
5112794      MILLERSVILLE                MD        21108      SFD          7.125           6.858            $ 1,992.86
5112832      CANTON                      MI        48150      SFD          8.000           7.250            $ 1,896.05
5113037      MAHOPAC                     NY        10541      SFD          8.375           7.250            $ 2,599.45
5113081      CAMARILLO                   CA        93012      SFD          8.125           7.250            $ 2,465.10
5113117      DENVER                      CO        80209      SFD          8.125           7.250            $ 2,687.84
5113302      NEW YORK                    NY        10016      HCO          8.625           7.250            $ 2,829.21
5113432      VASHON                      WA        98070      SFD          7.625           7.250            $ 2,371.11
5113500      NEW ORLEANS                 LA        70128      SFD          8.000           7.250            $ 2,009.78
5113541      DENVER                      CO        80209      SFD          8.125           7.250            $ 2,227.49
5113904      ENCINITAS                   CA        92024      SFD          7.875           7.250            $ 3,690.61
5114009      DALLAS                      TX        75210      SFD          8.125           7.250            $ 2,635.87
5114065      CORNELIUS                   NC        28031      SFD          8.250           7.250            $ 2,704.56
5114080      ALPHARETTA                  GA        30004      SFD          7.750           7.250            $ 1,837.60
5114146      GOLDEN                      CO        80401      SFD          8.125           7.250            $ 3,950.09
5114545      HOPEWELL JUNCTION           NY        12533      SFD          8.125           7.250            $ 2,120.58
5114552      BETHANY BEACH               DE        19930      LCO          7.375           7.108            $ 1,989.15
5114901      GROTON                      MA        01450      SFD          7.875           7.250            $ 2,066.45
5115306      CHEVY CHASE                 MD        20815      SFD          7.500           7.233            $ 1,957.81
5115747      JENKS                       OK        74037      SFD          8.125           7.250            $ 2,227.49
5115763      KENNETT SQUARE              PA        19348      SFD          8.000           7.250            $ 2,935.06
5115817      TOMBALL                     TX        77375      SFD          8.250           7.250            $ 2,034.06
5116063      RALEIGH                     NC        27609      SFD          8.000           7.250            $ 5,136.36
5116093      COTO DE CAZA                CA        92679      SFD          9.125           7.250            $ 3,254.54
5116429      SARATOGA                    CA        95070      SFD          9.125           7.250            $ 5,247.94
5116514      YORKTOWN HEIGHTS            NY        10598      SFD          7.750           7.250            $ 2,543.27
5116640      GLEN MILLS                  PA        19342      SFD          8.000           7.250            $ 2,087.57
5116834      DUBLIN                      CA        94568      SFD          7.875           7.250            $ 2,537.38
5116867      SUDBURY                     MA        01776      SFD          7.625           7.250            $ 3,210.56
5117013      SKILLMAN                    NJ        08558      SFD          7.375           7.108            $ 1,795.76
5117032      MAMARONECK                  NY        10538      SFD          7.500           7.233            $ 2,796.86
5117171      LOS ALTOS HILLS             CA        94022      SFD          9.125           7.250            $ 8,136.33
5117203      YORBA LINDA                 CA        92886      SFD          9.125           7.250            $ 5,085.21
5117258      SUNNYVALE                   CA        94087      SFD          9.125           7.250            $ 3,824.08
5117771      JACKSONVILLE                FL        32259      SFD          8.125           7.250            $ 2,438.18
5117816      CASTRO VALLEY               CA        94552      SFD          9.125           7.250            $ 2,457.18
5117828      REDWOOD CITY                CA        94065      SFD          8.875           7.250            $ 4,105.53
5117849      SAN JOSE                    CA        95148      SFD          8.875           7.250            $ 2,288.28
5117968      AUSTIN                      TX        78734      SFD          7.625           7.250            $ 1,868.58
5118034      SAN ANTONIO                 TX        78257      SFD          7.875           7.250            $ 2,175.21
5118129      WALDPORT                    OR        97394      SFD          8.375           7.250            $ 2,508.24
5118275      GURNEE                      IL        60031      SFD          7.875           7.250            $ 2,262.22
5118297      TAMPA                       FL        33647      SFD          7.875           7.250            $ 2,175.21
5118464      MIAMI                       FL        33133      SFD          8.875           7.250            $ 2,330.85
5118637      HAYWARD                     CA        94544      SFD          8.750           7.250            $ 2,769.19
5118665      BETHANY BEACH               DE        19930      SFD          8.750           7.250            $ 2,580.38
5118843      CUPERTINO                   CA        95014      SFD          8.750           7.250            $ 2,297.17
5118847      SAN JOSE                    CA        95130      SFD          8.875           7.250            $ 2,546.07
5118864      FRISCO                      TX        75034      SFD          8.125           7.250            $ 1,944.97
5119126      WALNUT CREEK                CA        94596      SFD          8.875           7.250            $ 2,953.44
5119200      ELIZABETH CITY              NC        27909      SFD          8.000           7.250             $ 678.74
5119426      CHESTERFIELD                VA        23838      SFD          8.000           7.250            $ 2,238.27
5119660      MORRISTOWN                  NJ        07960      SFD          7.625           7.250            $ 1,876.01
5119661      ROSWELL                     GA        30075      SFD          7.625           7.250            $ 1,804.88
5119780      RENO                        NV        89511      SFD          8.250           7.250            $ 2,581.35
5119812      THE WOODLANDS               TX        77382      SFD          8.000           7.250            $ 2,097.10
5119905      TAMPA                       FL        33629      SFD          8.000           7.250            $ 3,301.95
5120507      DAVIS                       CA        95616      SFD          8.000           7.250            $ 2,384.74
5120531      INDIANAPOLIS                IN        46260      SFD          7.000           6.733            $ 3,087.01
5120821      WHITESTONE                  NY        11357      MF2          8.375           7.250            $ 3,405.13
5120951      BARRINGTON                  RI        02806      SFD          8.750           7.250            $ 2,389.61
5121133      SAN JOSE                    CA        95134      LCO          8.750           7.250            $ 2,619.72
5121195      SUNNYVALE                   CA        94087      SFD          8.875           7.250            $ 2,386.94
5121243      SPRING HILL                 TN        37174      SFD          8.625           7.250            $ 2,146.70
5121324      LOS ALTOS HILLS             CA        94022      SFD          8.875           7.250            $ 4,769.90
5121327      LOS ALTOS                   CA        94024      SFD          8.875           7.250            $ 4,296.49
5121365      SOUTH SAN FRANCISCO         CA        94080      SFD          8.625           7.250            $ 2,143.59
5121531      SUNNYVALE                   CA        94087      SFD          8.875           7.250            $ 2,864.33
5121536      FORT WORTH                  TX        76179      SFD          7.250           6.983            $ 2,346.69
5121606      AGOURA                      CA        91301      SFD          8.250           7.250            $ 2,400.30
5121648      JUPITER                     FL        33458      SFD          7.625           7.250            $ 1,801.34
5121806      ELLISON BAY                 WI        54210      SFD          8.375           7.250            $ 3,800.37
5121850      HARTLAND                    WI        53029      SFD          8.375           7.250            $ 3,800.37
5121992      BRENTWOOD                   TN        37067      SFD          7.500           7.233            $ 3,915.61
5122216      HALF MOON BAY               CA        94019      SFD          7.875           7.250            $ 2,057.75
5122285      DANVILLE                    CA        94506      SFD          7.375           7.108            $ 3,177.11
5122310      INVER GROVE HEIGHTS         MN        55077      SFD          7.625           7.250            $ 2,064.19
5122311      FREMONT                     CA        94539      SFD          8.500           7.250            $ 3,844.57
5122418      SEATTLE                     WA        98177      SFD          7.500           7.233            $ 6,992.15
5122758      ALPINE                      UT        84004      SFD          8.250           7.250            $ 2,366.49
5123326      LOS ANGELES                 CA        90025      LCO          8.000           7.250            $ 3,222.69
5123486      MENDHAM                     NJ        07945      SFD          7.375           7.108            $ 3,011.35
5123686      NEW CUMBERLAND              PA        17070      SFD          7.375           7.108            $ 2,034.04
5123822      CASTRO VALLEY               CA        94552      SFD          8.750           7.250            $ 2,466.31
5123965      ESSEX JUNCTION              VT        05452      SFD          8.000           7.250            $ 2,201.30
5124123      SAN JOSE                    CA        95126      SFD          8.375           7.250            $ 2,277.18
5124170      ROGERS                      AR        72756      SFD          8.000           7.250            $ 2,788.31
5124174      JOPLIN                      MO        64804      SFD          8.250           7.250            $ 2,583.61
5124192      BRISBANE                    CA        94005      LCO          7.750           7.250            $ 1,823.27
5125165      SARATOGA                    CA        95070      SFD          8.750           7.250            $ 7,210.11
5125402      HOUSTON                     TX        77059      SFD          7.250           6.983            $ 2,455.84
5125656      SAN JOSE                    CA        95123      SFD          8.750           7.250            $ 3,650.29
5125928      REDWOOD CITY                CA        94065      SFD          8.625           7.250            $ 3,901.40
5125930      DANA POINT                  CA        92624      SFD          8.250           7.250            $ 2,629.44
5126057      KATY                        TX        77450      PUD          7.500           7.233            $ 1,982.98
5126480      SAN FRANCISCO               CA        94110      SFD          8.250           7.250            $ 1,990.86
5126584      ATLANTA                     GA        30309      LCO          7.750           7.250            $ 1,988.05
5126888      PINEHURST                   NC        28374      SFD          8.500           7.250            $ 3,114.10
5127005      LA CANADA FLINTRIDGE        CA        91011      SFD          7.625           7.250            $ 4,600.66
5127101      UNION CITY                  CA        94587      SFD          8.750           7.250            $ 2,986.40
5127120      SAN JUAN CAPISTRANO         CA        92675      SFD          8.875           7.250            $ 4,455.62
5127123      SAN BRUNO                   CA        94066      SFD          7.875           7.250            $ 2,283.97
5127132      SCOTTS VALLEY               CA        95066      SFD          8.125           7.250            $ 2,227.49
5127215      OKLAHOMA CITY               OK        73150      SFD          8.000           7.250            $ 2,768.50
5127297      MIAMI BEACH                 FL        33140      SFD          7.875           7.250            $ 3,625.35
5127421      PARKER                      CO        80134      SFD          7.500           7.233            $ 3,523.15
5127702      SAN ANTONIO                 TX        78258      SFD          8.125           7.250            $ 2,107.95
5127771      CALABASAS                   CA        91301      SFD          7.500           7.233            $ 1,779.51
5128321      RICHMOND                    TX        77469      SFD          8.125           7.250            $ 3,059.09
5129075      RICHMOND                    CA        94805      SFD          7.375           7.108            $ 1,757.77
5129850      VANCOUVER                   WA        98986      SFD          8.375           7.250            $ 2,082.60
5130424      DARIEN                      CT        06820      SFD          8.125           7.250            $ 3,341.24
5130668      ANNANDALE                   VA        22003      SFD          7.875           7.250            $ 2,175.21
5130854      EAST NORTHPORT              NY        11731      SFD          7.875           7.250            $ 1,914.18
5130868      REHOBOTH BEACH              DE        19971      LCO          8.000           7.250            $ 1,867.44
5131516      COTO DE CAZA                CA        92679      SFD          8.875           7.250            $ 4,821.61
5131547      SAN FRANCISCO               CA        94131      SFD          7.750           7.250            $ 1,828.29
5132499      SEA ISLE CITY               NJ        08243      LCO          8.000           7.250            $ 2,568.18
5132831      SUWANEE                     GA        30024      PUD          7.500           7.233            $ 1,779.51
5132950      NAPA                        CA        94558      SFD          8.000           7.250            $ 2,905.71
5132959      FORT COLLINS                CO        80525      SFD          7.750           7.250            $ 1,823.27
5134499      BENTONVILLE                 AR        72712      SFD          7.875           7.250            $ 3,045.29
5135267      FAYETTEVILLE                AR        72703      SFD          7.750           7.250            $ 2,369.53
5135494      WASHINGTON                  DC        20011      SFD          8.875           7.250            $ 2,935.93
5140193      SOUTHAMPTON                 NY        11968      SFD          8.375           7.250            $ 2,318.23
6716248      BUFFALO GROVE               IL        60089      PUD          7.500           7.233            $ 2,002.55
6727769      CEDAR RAPIDS                IA        52411      SFD          8.125           7.250            $ 2,338.87
6938137      BRENTWOOD                   TN        37027      SFD          7.250           6.983            $ 3,001.58
6979513      OMAHA                       NE        68124      SFD          7.250           6.983            $ 2,885.61
7032843      CARLISLE                    MA        01741      SFD          6.875           6.608            $ 2,851.07
7046461      WILMETTE                    IL        60091      SFD          7.500           7.233            $ 2,622.05
7060604      EDWARDS                     CO        81632      SFD          8.250           7.250            $ 2,411.57
7079209      SEATTLE                     WA        98121      HCO          8.000           7.250            $ 2,641.49
7142744      COTTAGE GROVE               MN        55016      SFD          7.000           6.733            $ 2,075.74
7188991      CARMEL                      IN        46033      SFD          8.250           7.250            $ 2,479.18
7221574      FORT COLLINS                CO        80526      SFD          8.250           7.250            $ 2,599.38
7258614      PAYSON                      AZ        85541      SFD          8.125           7.250            $ 3,148.19
7368289      FORT COLLINS                CO        80525      SFD          8.000           7.250            $ 3,191.88
7443205      SCOTTSDALE                  AZ        85255      SFD          7.500           7.233            $ 2,447.25
7515818      BERNARDS TWP                NJ        07920      SFD          8.500           7.250            $ 2,764.24
7525208      BOULDER                     CO        80301      PUD          6.875           6.608            $ 2,417.50
7526856      VALENCIA                    CA        91355      SFD          7.750           7.250            $ 3,136.68
7559414      AUSTIN                      TX        78737      SFD          8.125           7.250            $ 2,828.19
7560751      VALENCIA                    CA        91355      SFD          8.250           7.250            $ 2,984.87
7567696      STATEN ISLAND               NY        10307      SFD          8.375           7.250            $ 2,949.08
7586195      FT. WAYNE                   IN        46845      SFD          8.125           7.250            $ 3,326.39
7591915      MISSION VIEJO               CA        92692      SFD          7.750           7.250            $ 3,011.80
7599992      BAKERSFIELD                 CA        93312      SFD          7.625           7.250            $ 2,649.63
7604174      YUCAIPA                     CA        92399      SFD          7.375           7.108            $ 2,037.49
7608812      APTOS                       CA        95003      SFD          8.250           7.250            $ 2,334.94
7621729      VICTORVILLE                 CA        92392      SFD          8.000           7.250            $ 2,935.06
7627329      POTOMAC FALLS               VA        20165      SFD          7.625           7.250            $ 2,348.11
7643370      ALLENDALE                   NJ        07401      SFD          8.375           7.250            $ 4,750.45
7648754      VIENNA                      VA        22182      SFD          8.250           7.250            $ 4,304.21
7660941      FAIRFAX                     VA        22033      SFD          7.625           7.250            $ 2,741.99
7676682      CINCINNATI                  OH        45226      SFD          7.500           7.233            $ 1,798.38
7692101      ROSWELL                     NM        88201      SFD          8.250           7.250            $ 2,056.59
7693404      POTOMAC FALLS               VA        20165      SFD          7.250           6.983            $ 1,841.88
7697623      MESA                        AZ        85205      SFD          8.375           7.250            $ 2,324.83
7703118      DARNESTOWN                  MD        20878      SFD          7.250           6.983            $ 2,114.75
7705085      LEESBURG                    VA        20175      SFD          7.750           7.250            $ 2,059.69
7707311      INDIAN HEAD PARK            IL        60525      SFD          8.500           7.250            $ 2,951.09
7712066      LEESBURG                    VA        20175      SFD          7.875           7.250            $ 1,823.91
7722748      MARTINEZ                    CA        94553      SFD          8.125           7.250            $ 2,607.65
7728219      CAMARILLO                   CA        93010      SFD          8.000           7.250            $ 2,094.90
7732743      RAPID CITY                  SD        57702      SFD          8.375           7.250            $ 2,780.65
7737543      OAK CREEK                   CO        80467      SFD          8.000           7.250            $ 2,957.07
7739465      FOLSOM                      CA        95630      SFD          8.125           7.250            $ 1,940.86
7757719      NAPERVILLE                  IL        60565      SFD          8.750           7.250            $ 2,399.44
7767687      GURNEE                      IL        60031      SFD          8.000           7.250            $ 2,388.62
7769915      MAPLE GROVE                 MN        55311      SFD          7.875           7.250            $ 2,700.71
7774612      THORNTON                    NH        03223      SFD          8.125           7.250            $ 2,672.99
7782495      SANTA CLARITA               CA        91351      LCO          8.375           7.250            $ 1,987.32
7788351      FRANKLIN TWP                NJ        08873      SFD          8.500           7.250            $ 2,076.07
7794696      LAS VEGAS                   NV        89117      SFD          7.875           7.250            $ 2,175.21
7795774      CENTREVILLE                 VA        20121      SFD          7.875           7.250            $ 2,175.21
7804741      MINNEAPOLIS                 MN        55419      SFD          8.500           7.250            $ 2,698.89
7806677      SANTA FE                    NM        87501      SFD          7.500           7.233            $ 2,622.05
7809871      SUGAR LAND                  TX        77479      SFD          8.375           7.250            $ 2,614.65
7813729      WEST CHESTER                PA        19380      SFD          7.875           7.250            $ 2,789.80
7821313      BOARDMAN                    OR        97818      SFD          8.500           7.250            $ 2,360.56
7822178      TUSTIN                      CA        92782      SFD          8.000           7.250            $ 4,016.26
7822442      SOUTH RIDING                VA        20152      SFD          7.625           7.250            $ 2,597.89
7822449      CARLSBAD                    CA        92009      SFD          7.875           7.250            $ 2,052.31
7822568      SCOTTSDALE                  AZ        85259      SFD          8.250           7.250            $ 2,392.78
7836224      SAN DIEGO                   CA        92121      SFD          8.000           7.250            $ 2,472.05
7836648      SUFFOLK                     VA        23432      SFD          7.500           7.233            $ 3,670.88
7845335      DALLAS                      TX        75209      SFD          8.000           7.250            $ 2,054.54
7852396      PLYMOUTH                    MN        55447      SFD          8.250           7.250            $ 2,253.80
7865056      SAN DIEGO                   CA        92130      SFD          8.000           7.250            $ 3,191.88
7872135      AURORA                      CO        80016      SFD          8.125           7.250            $ 2,598.74
7873425      FISHERS                     IN        46038      SFD          7.625           7.250            $ 1,989.25
7875783      POTOMAC                     MD        20854      SFD          8.125           7.250            $ 3,118.49
7878050      HILLSBORO                   OR        97124      SFD          8.375           7.250            $ 2,204.21
7883241      TRUCKEE                     CA        96161      SFD          8.250           7.250            $ 2,253.80
7885132      CHESTERFIELD                MO        63005      PUD          7.875           7.250            $ 2,432.25
7888708      CHICAGO                     IL        60610      SFD          8.875           7.250            $ 2,000.31
7895247      GAINESVILLE                 VA        20155      SFD          7.750           7.250            $ 2,213.36
7897287      WOODLAND                    CA        95695      SFD          8.375           7.250            $ 2,508.24
7901649      HOBOKEN                     NJ        07030      LCO          8.250           7.250            $ 3,530.95
7905984      EUREKA                      MO        63025      SFD          8.500           7.250            $ 2,211.78
7906017      GOODE                       VA        24556      SFD          7.875           7.250            $ 1,885.18
7906127      NEWPORT BEACH               CA        92662      MF2          7.750           7.250            $ 4,656.68
7906672      RUTHERFORD                  NJ        07070      MF2          8.750           7.250            $ 1,349.19
7907879      WILBRAHAM                   MA        01095      SFD          7.625           7.250            $ 1,981.11
7911248      SAN JOSE                    CA        95123      SFD          8.375           7.250            $ 2,086.78
7912066      FOLSOM                      CA        95630      SFD          8.500           7.250            $ 2,691.20
7914097      NAPLES                      FL        34105      SFD          8.125           7.250            $ 5,509.33
7916339      MINNETONKA                  MN        55345      SFD          8.250           7.250            $ 2,253.80
7917756      SANTA CRUZ                  CA        95062      SFD          8.250           7.250            $ 2,065.98
7918122      SALINAS                     CA        93908      SFD          7.875           7.250            $ 3,016.29
7918322      HOPEWELL TWP                NJ        08540      SFD          8.375           7.250            $ 3,800.36
7918837      CASTLE ROCK                 CO        80104      SFD          8.500           7.250            $ 3,875.32
7922642      FORT WORTH                  TX        76132      SFD          8.375           7.250            $ 2,280.22
7923585      GILROY                      CA        95020      SFD          8.375           7.250            $ 2,024.35
7924927      LAGUNA NIGUEL               CA        92677      SFD          8.000           7.250            $ 6,970.76
7925021      SALINAS                     CA        93908      SFD          7.875           7.250            $ 3,081.54
7926764      BROOKLINE                   MA        02446      LCO          8.250           7.250             $ 676.14
7929662      LITTLETON                   CO        80127      SFD          8.250           7.250            $ 2,103.55
7929863      ROSEVILLE                   CA        95678      SFD          8.125           7.250            $ 2,230.90
7931837      OCEAN CITY                  NJ        08226      SFD          8.250           7.250            $ 2,073.50
7931888      CLAYTON                     CA        94517      SFD          7.875           7.250            $ 2,392.73
7934865      MANHATTAN BEACH             CA        90266      SFD          8.125           7.250            $ 4,009.48
7935453      HAIKU                       HI        96708      SFD          8.375           7.250            $ 1,596.15
7936285      POTOMAC                     MD        20854      SFD          8.000           7.250            $ 3,925.64
7938808      ROSEVILLE                   CA        95678      SFD          8.125           7.250            $ 2,250.29
7941410      BRISBANE                    CA        94005      LCO          7.875           7.250            $ 2,444.74
7941856      POUGHKEEPSIE                NY        12603      SFD          8.875           7.250            $ 2,783.96
7942069      NAPERVILLE                  IL        60564      SFD          8.875           7.250            $ 2,827.32
7943181      FORT WORTH                  TX        76179      SFD          8.250           7.250            $ 2,704.56
7943690      OCEAN CITY                  NJ        08226      LCO          8.500           7.250            $ 2,552.79
7944189      BRISBANE                    CA        94005      LCO          8.125           7.250            $ 2,598.37
7944370      OXNARD                      CA        93035      SFD          8.125           7.250            $ 2,101.27
7944461      MEDFORD                     OR        97504      SFD          8.125           7.250            $ 2,794.76
7944532      SUMNER                      WA        98390      SFD          8.000           7.250            $ 4,006.35
7944865      FORT LAUDERDALE             FL        33134      SFD          8.500           7.250            $ 4,596.56
7945375      DULUTH                      GA        30197      SFD          8.750           7.250            $ 2,514.29
7946966      MAMMOTH LAKES               CA        93546      PUD          8.250           7.250            $ 4,477.55
7947270      TEQUESTA                    FL        33469      SFD          7.625           7.250            $ 3,715.92
7947800      COLUMBIA                    CA        95310      SFD          8.500           7.250            $ 2,114.51
7947817      WOODBINE                    MD        21797      SFD          8.375           7.250            $ 2,493.04
7948435      ALPHARETTA                  GA        30022      SFD          7.875           7.250            $ 2,104.51
7949404      CHINO HILLS                 CA        91709      SFD          8.125           7.250            $ 2,138.39
7949506      OCEAN CITY                  NJ        08226      LCO          8.375           7.250            $ 2,553.84
7950126      HUDSON                      WI        54016      SFD          8.500           7.250            $ 2,306.74
7951038      SIMI VALLEY                 CA        93065      SFD          7.625           7.250            $ 2,654.23
7951359      PITTSTOWN                   NJ        08867      SFD          8.250           7.250            $ 3,275.52
7951543      WINCHESTER                  MA        01890      SFD          7.625           7.250            $ 3,340.79
7952843      AVALON                      NJ        08202      SFD          7.875           7.250            $ 1,885.18
7953725      PENN VALLEY                 CA        95946      SFD          8.000           7.250            $ 1,794.05
7953906      GIG HARBOR                  WA        98332      LCO          8.125           7.250            $ 2,784.36
7955312      CARSON CITY                 NV        89703      SFD          8.375           7.250            $ 2,219.41
7955779      NEWTON                      MA        02467      SFD          8.125           7.250            $ 2,737.91
7956585      SCITUATE                    MA        02066      SFD          8.500           7.250            $ 3,069.50
7956689      EDEN PRAIRIE                MN        55347      SFD          8.000           7.250            $ 2,348.05
7957062      ORLANDO                     FL        32819      SFD          8.125           7.250            $ 2,004.74
7957375      NEWCASTLE                   CA        95658      SFD          8.500           7.250            $ 3,260.19
7957772      LOMA LINDA                  CA        92354      SFD          8.000           7.250            $ 2,317.50
7959390      FAIRVIEW                    TX        75069      SFD          8.125           7.250            $ 3,194.52
7959829      CHAPEL HILL                 NC        27514      SFD          8.000           7.250            $ 2,847.01
7959876      CHESTERFIELD                MO        63005      SFD          8.000           7.250            $ 2,017.85
7959884      HONOLULU                    HI        96813      SFD          7.625           7.250            $ 3,185.07
7960044      AVALON                      NJ        08202      SFD          8.250           7.250            $ 3,756.33
7960254      LAGUNA NIGUEL               CA        92677      SFD          7.750           7.250            $ 3,089.17
7960540      ANNAPOLIS                   MD        21401      SFD          8.250           7.250            $ 2,937.45
7960687      SAN CLEMENTE                CA        92673      SFD          8.250           7.250            $ 2,591.87
7961036      CORONA                      CA        91720      SFD          8.500           7.250            $ 1,964.19
7961203      ORO VALLEY                  AZ        85737      SFD          8.250           7.250            $ 2,307.89
7961223      YORBA LINDA                 CA        92886      SFD          7.875           7.250            $ 1,945.36
7961459      SAN JOSE                    CA        95138      SFD          7.875           7.250            $ 2,668.26
7961551      IRVINE                      CA        92612      SFD          8.000           7.250            $ 2,274.67
7961576      WEST CHICAGO                IL        60185      SFD          8.250           7.250            $ 2,253.80
7962881      OCEAN CITY                  NJ        08226      LCO          8.375           7.250            $ 2,949.08
7963377      HIGHLAND PARK               NJ        08904      SFD          8.625           7.250            $ 1,213.35
7964860      FALMOUTH                    ME        04105      SFD          8.375           7.250            $ 2,043.45
7964868      CHULA VISTA                 CA        91913      SFD          8.250           7.250            $ 2,120.07
7965399      HAWTHORN WOODS              IL        60047      SFD          8.250           7.250            $ 2,068.24
7966275      GEORGETOWN                  KY        40324      SFD          7.750           7.250            $ 1,002.98
7966913      SAN DIEGO                   CA        92117      SFD          7.875           7.250            $ 1,890.98
7967700      HULL                        MA        02045      SFD          8.250           7.250            $ 2,072.89
7968652      CORVALLIS                   OR        97333      SFD          8.375           7.250             $ 661.26
7968743      ALEXANDRIA                  VA        22312      SFD          7.500           7.233            $ 1,901.86
7968859      BOULDER                     CO        80301      SFD          7.750           7.250            $ 1,877.00
7968869      SIMI VALLEY                 CA        93065      SFD          7.625           7.250            $ 2,090.66
7969679      VAIL                        CO        81657      SFD          8.500           7.250            $ 2,214.47
7970211      BERKELEY HEIGHTS            NJ        07922      SFD          8.500           7.250            $ 2,491.28
7970303      MINNEAPOLIS                 MN        55403      SFD          8.250           7.250            $ 2,043.45
7970318      BASALT                      CO        81621      SFD          8.250           7.250            $ 2,307.89
7970856      OLYMPIA                     WA        98501      SFD          7.500           7.233            $ 2,587.09
7971436      BATON ROUGE                 LA        70810      SFD          8.000           7.250            $ 2,565.24
7971490      LAHAINA                     HI        96761      SFD          8.250           7.250            $ 3,380.70
7971734      GLADWYNE                    PA        19035      SFD          8.125           7.250            $ 3,341.24
7971842      HEATH                       TX        75032      SFD          7.875           7.250            $ 1,921.43
7973290      BENICIA                     CA        94510      SFD          8.000           7.250            $ 2,640.82
7973997      DAWSONVILLE                 GA        30534      SFD          7.875           7.250            $ 3,625.35
7974084      DENVER                      CO        80246      SFD          8.375           7.250            $ 3,763.88
7975604      ATLANTA                     GA        30067      SFD          8.125           7.250            $ 2,858.61
7977418      GREENBRAE                   CA        94904      LCO          8.375           7.250            $ 2,675.45
7977471      NORCO                       CA        92821      SFD          8.000           7.250            $ 3,169.86
7977502      COPPELL                     TX        75019      SFD          8.125           7.250            $ 1,594.88
7977581      SAN MATEO                   CA        94401      SFD          8.500           7.250            $ 2,260.61
7977646      BOULDER CREEK               CA        95006      SFD          8.500           7.250            $ 3,950.29
7978478      BASALT                      CO        81621      SFD          8.000           7.250            $ 2,581.52
7978884      BELLEVUE                    WA        98006      SFD          7.750           7.250            $ 2,865.65
7978980      MINDEN                      NV        89423      SFD          8.250           7.250            $ 1,990.86
7980077      SAN JOSE                    CA        95138      SFD          7.875           7.250            $ 2,646.50
7981372      LOS ANGELES                 CA        90045      SFD          8.375           7.250            $ 2,489.24
7981731      FAIRFAX STATION             VA        22039      SFD          7.875           7.250            $ 2,033.09
7981893      ALPHARETTA                  GA        30322      SFD          7.875           7.250            $ 2,233.21
7982124      PINEHURST                   NC        28374      SFD          7.750           7.250            $ 1,948.64
7982605      SAN DIEGO                   CA        92130      SFD          7.875           7.250            $ 2,389.83
7982755      HONOLULU                    HI        96825      SFD          7.750           7.250            $ 5,215.48
7982954      MARIETTA                    GA        30066      SFD          7.500           7.233            $ 2,164.21
7983331      CORVALLIS                   OR        97333      SFD          8.750           7.250            $ 1,136.78
7984891      WAKE FOREST                 NC        27587      SFD          8.000           7.250            $ 2,641.55
7985065      THOUSAND OAKS               CA        91362      LCO          7.875           7.250            $ 2,059.41
7986320      MCMINNVILLE                 OR        97128      SFD          8.000           7.250            $ 2,348.05
7986433      PLEASANTON                  CA        94588      SFD          8.375           7.250            $ 1,909.68
7986924      YORBA LINDA                 CA        92886      SFD          8.125           7.250            $ 2,405.69
7987452      LONG BEACH                  CA        90808      SFD          8.000           7.250            $ 2,083.30
7987490      KEYSTONE                    CO        80435      SFD          8.000           7.250            $ 4,769.47
7987803      GLENDALE                    AZ        85308      SFD          8.250           7.250            $ 2,731.61
7989440      SAN FRANCISCO               CA        94122      LCO          8.625           7.250            $ 3,111.16
7990423      ROWLAND HEIGHTS             CA        91748      SFD          7.875           7.250            $ 2,302.82
7990444      LAKE ARROWHEAD              CA        92352      SFD          8.000           7.250            $ 2,576.98
7990552      LAKE GEORGE                 CO        80827      SFD          8.250           7.250            $ 3,726.28
7991068      ARLINGTON                   VA        22207      SFD          7.500           7.233            $ 2,601.08
7991739      CAMARILLO                   CA        93012      SFD          8.250           7.250            $ 2,465.28
7992149      WHITTIER                    CA        90603      SFD          8.375           7.250            $ 2,804.67
7993531      HARTWELL                    GA        30643      SFD          8.500           7.250            $ 2,583.55
7994069      TONKA BAY                   MN        55331      SFD          8.250           7.250            $ 6,385.77
7994977      BETHESDA                    MD        20817      SFD          7.750           7.250            $ 2,160.70
7995093      FRANKLIN PARK               NJ        08873      SFD          8.125           7.250            $ 2,799.96
7995951      MOORESTOWN                  NJ        08057      SFD          8.375           7.250            $ 2,702.06
7996999      SNOWMASS VILLAGE            CO        81615      SFD          7.875           7.250            $ 4,640.44
7997477      DESTREHAN                   LA        70047      SFD          7.875           7.250            $ 1,943.19
7997760      ARLINGTON                   VA        22207      SFD          7.250           6.983            $ 2,521.32
7998095      GREENWICH                   CT        06830      SFD          7.500           7.233            $ 2,712.95
7998782      PARK CITY                   UT        84098      SFD          7.875           7.250            $ 1,961.73
8002576      ALPINE                      CA        91901      SFD          7.625           7.250            $ 2,080.91
8003236      RESTON                      VA        20194      SFD          8.500           7.250            $ 2,359.80
8004685      MANTUA TOWNSHIP             NJ        08080      SFD          7.375           7.108            $ 1,986.38
8004927      TUMWATER                    WA        98512      SFD          7.875           7.250            $ 4,314.16
8005397      GRANITE BAY                 CA        95746      SFD          8.500           7.250            $ 2,176.03
8005816      WINDSOR                     CO        80550      SFD          8.125           7.250            $ 3,532.80
8007658      CHARLOTTE                   NC        28210      SFD          7.375           7.108            $ 1,899.36
8011692      WARREN                      NJ        07059      SFD          8.000           7.250            $ 4,035.71
8011768      PROVIDENCE                  RI        02906      SFD          8.500           7.250            $ 2,306.74
8017462      BOULDER                     CO        80304      SFD          8.250           7.250            $ 2,491.95





NASCOR
NMI / 2000-01  Exhibit F-2A
30 YEAR FIXED RATE NON RELOCATION  LOANS

(continued)


(i)          (vii)         (viii)             (ix)           (x)        (xi)         (xii)       (xiii)       (xv)          (xvI)
- -----      --------      ----------      --------------     ------    ---------    ----------   --------   -----------   --------
                                            CUT-OFF
MORTGAGE   ORIGINAL       SCHEDULED           DATE                                  MORTGAGE                 MASTER         FIXED
LOAN        TERM TO       MATURITY         PRINCIPAL                               INSURANCE    SERVICE      SERVICE       RETAINED
NUMBER     MATURITY         DATE            BALANCE          LTV       SUBSIDY        CODE        FEE          FEE          YIELD
- --------   --------      -----------     --------------     ------    ---------    ----------   --------   -----------   --------
4863993       360         1-Dec-28        $ 577,992.92      70.00                                0.250        0.017         0.000
4935804       360         1-Nov-28        $ 345,623.32      74.47                                0.250        0.017         0.000
4954646       360         1-Jun-29        $ 71,420.82       90.00                      33        0.250        0.017         0.000
4971356       360         1-Dec-29        $ 299,803.75      46.15                                0.250        0.017         0.608
4979734       240         1-Dec-19        $ 618,914.28      80.00                                0.250        0.017         0.233
4980829       360         1-Dec-29        $ 347,735.20      79.89                                0.250        0.017         0.000
4986594       360         1-Dec-29        $ 336,396.08      89.97                      33        0.250        0.017         0.983
4988797       360         1-Oct-29        $ 528,812.60      73.10                                0.250        0.017         0.000
4999895       360         1-Jan-30        $ 360,000.00      53.10                                0.250        0.017         0.858
5001493       360         1-Apr-29        $ 330,545.67      90.00                      12        0.250        0.017         0.000
5003385       360         1-Apr-29        $ 142,989.20      80.00                                0.250        0.017         0.000
5013091       360         1-Aug-29        $ 308,745.66      70.45                                0.250        0.017         0.000
5013591       360         1-Dec-29        $ 350,776.18      90.00                      06        0.250        0.017         0.733
5013644       360         1-Dec-29        $ 279,550.84      73.70                                0.250        0.017         0.000
5013711       360         1-Dec-29        $ 290,691.13      94.99                                0.250        0.017         1.483
5014813       360         1-Nov-29        $ 248,562.60      70.00                                0.250        0.017         1.233
5017687       360         1-Dec-29        $ 364,722.26      62.94                                0.250        0.017         0.000
5018993       360         1-Dec-29        $ 391,890.11      80.00      GD 3YR                    0.250        0.017         0.358
5022266       360         1-Dec-29        $ 289,956.31      80.00                                0.250        0.017         0.358
5028974       360         1-Dec-29        $ 289,768.09      72.76                                0.250        0.017         0.000
5035111       360         1-Dec-29        $ 275,240.64      80.00                                0.250        0.017         0.108
5042829       360         1-Dec-29        $ 305,799.82      90.00                      06        0.250        0.017         0.608
5042860       360         1-Jan-30        $ 310,000.00      75.61                                0.250        0.017         0.000
5045570       360         1-Dec-29        $ 299,793.54      90.59                                0.250        0.017         0.358
5056182       360         1-Dec-29        $ 334,775.21      62.69      GD 3YR                    0.250        0.017         0.483
5059855       360         1-Nov-29        $ 187,771.41      33.27                                0.250        0.017         0.983
5062738       360         1-Dec-29        $ 403,874.45      80.00      GD 3YR                    0.250        0.017         0.000
5071083       360         1-Jan-30        $ 388,800.00      79.02                                0.250        0.017         0.000
5071358       360         1-Dec-29        $ 275,235.84      95.00                                0.250        0.017         0.608
5073620       360         1-Dec-29        $ 419,790.90      80.00                                0.250        0.017         0.358
5074318       360         1-Dec-29        $ 361,244.50      67.41                                0.250        0.017         0.233
5076175       360         1-Dec-29        $ 339,766.01      76.56                                0.250        0.017         0.358
5078401       360         1-Dec-29        $ 332,459.86      90.20                                0.250        0.017         0.733
5079191       360         1-Dec-29        $ 310,985.83      80.00                                0.250        0.017         0.358
5081333       360         1-Dec-29        $ 335,855.56      69.14                                0.250        0.017         0.000
5081342       360         1-Dec-29        $ 368,402.64      79.99                                0.250        0.017         0.483
5082751       360         1-Dec-29        $ 314,783.22      90.00                      06        0.250        0.017         0.358
5083523       360         1-Dec-29        $ 339,794.02      80.00                                0.250        0.017         0.983
5086119       360         1-Dec-29        $ 657,980.16      80.00                                0.250        0.017         0.733
5087460       360         1-Jan-30        $ 286,072.00      90.00      GD 7YR          06        0.250        0.017         0.358
5089128       360         1-Jan-30        $ 290,450.00      94.99                      33        0.250        0.017         0.733
5091564       360         1-Jan-30        $ 373,500.00      90.00                      01        0.250        0.017         0.733
5092896       360         1-Nov-29        $ 284,575.66      77.87                                0.250        0.017         0.000
5093008       360         1-Dec-29        $ 380,937.66      80.00                                0.250        0.017         0.358
5093149       360         1-Dec-29        $ 259,834.20      80.00                                0.250        0.017         0.733
5093833       360         1-Dec-29        $ 394,728.16      66.39                                0.250        0.017         0.358
5094564       360         1-Nov-29        $ 308,246.57      95.00                      12        0.250        0.017         0.983
5094896       360         1-Dec-29        $ 360,911.95      87.84                      01        0.250        0.017         0.000
5094932       360         1-Dec-29        $ 256,359.89      95.00                      01        0.250        0.017         1.483
5095821       360         1-Nov-29        $ 328,983.44      89.99                      13        0.250        0.017         0.233
5096146       360         1-Dec-29        $ 320,598.65      95.00                                0.250        0.017         0.983
5096645       360         1-Dec-29        $ 301,302.78      90.00                      01        0.250        0.017         0.608
5096760       360         1-Dec-29        $ 649,595.99      72.22                                0.250        0.017         0.858
5098208       360         1-Dec-29        $ 299,813.53      93.78                      13        0.250        0.017         0.858
5098459       360         1-Aug-29        $ 320,119.09      80.00                                0.250        0.017         0.000
5099124       360         1-Dec-29        $ 420,446.47      80.00                                0.250        0.017         0.000
5100214       360         1-Dec-29        $ 479,716.60      80.00                                0.250        0.017         1.108
5101307       360         1-Dec-29        $ 507,632.32      78.15      GD 3YR                    0.250        0.017         0.108
5102522       360         1-Jan-30        $ 318,750.00      75.00                                0.250        0.017         0.983
5103844       360         1-Dec-29        $ 325,212.81      60.28      GD 3YR                    0.250        0.017         0.000
5104052       360         1-Dec-29        $ 707,750.12      74.95      GD 5YR                    0.250        0.017         0.233
5104265       360         1-Dec-29        $ 447,691.68      80.00                                0.250        0.017         0.358
5104710       360         1-Dec-29        $ 292,782.55      65.11                                0.250        0.017         0.000
5104752       360         1-Dec-29        $ 279,792.19      58.33                                0.250        0.017         0.000
5104802       360         1-Oct-29        $ 269,423.42      94.81                      13        0.250        0.017         0.733
5105182       360         1-Nov-29        $ 315,644.50      82.16                      33        0.250        0.017         0.733
5105293       360         1-Dec-29        $ 347,760.50      80.35                                0.250        0.017         0.358
5105569       360         1-Jan-30        $ 276,000.00      80.00                                0.250        0.017         0.358
5105948       360         1-Jan-30        $ 343,000.00      70.00                                0.250        0.017         0.358
5106362       360         1-Dec-29        $ 399,751.38      79.21                                0.250        0.017         0.858
5106600       360         1-Nov-29        $ 54,936.47       43.31                                0.250        0.017         1.233
5106880       360         1-Dec-29        $ 339,771.87      80.00                                0.250        0.017         0.483
5107377       360         1-Dec-29        $ 323,770.61      75.00                                0.250        0.017         0.483
5107573       360         1-Dec-29        $ 563,526.17      80.00                                0.250        0.017         0.000
5107760       360         1-Jan-30        $ 327,150.00      90.01                                0.250        0.017         0.108
5107903       360         1-Dec-29        $ 389,717.73      67.47                                0.250        0.017         0.108
5108687       360         1-Dec-29        $ 319,779.77      80.00      GD 3YR                    0.250        0.017         0.358
5108720       360         1-Dec-29        $ 449,713.05      60.00                                0.250        0.017         0.733
5109496       360         1-Nov-29        $ 274,656.95      66.27                                0.250        0.017         0.858
5109535       360         1-Jan-30        $ 261,200.00      80.00                                0.250        0.017         0.858
5109809       360         1-Dec-29        $ 563,560.02      80.00                                0.250        0.017         0.000
5110061       360         1-Dec-29        $ 309,786.66      77.71                                0.250        0.017         0.358
5110108       360         1-Dec-29        $ 300,093.51      90.00                                0.250        0.017         0.733
5110171       360         1-Jan-30        $ 280,000.00      86.15                                0.250        0.017         0.608
5110649       360         1-Dec-29        $ 380,217.61      78.45                                0.250        0.017         0.000
5110672       360         1-Dec-29        $ 361,769.16      80.00                                0.250        0.017         0.733
5110706       360         1-Nov-29        $ 287,640.73      80.00                                0.250        0.017         0.858
5111239       360         1-Dec-29        $ 623,548.36      80.00                                0.250        0.017         0.108
5111355       360         1-Nov-29        $ 545,682.74      80.00                                0.250        0.017         0.608
5111703       360         1-Jan-30        $ 284,920.00      80.00                                0.250        0.017         0.000
5111887       360         1-Jan-30        $ 300,000.00      76.53      GD 3YR                    0.250        0.017         0.000
5111926       360         1-Dec-29        $ 329,742.56      69.04                                0.250        0.017         0.000
5111966       360         1-Jan-30        $ 308,000.00      80.00                                0.250        0.017         0.483
5112014       360         1-Dec-29        $ 504,960.95      79.95                                0.250        0.017         0.483
5112204       360         1-Dec-29        $ 299,808.70      46.15                                0.250        0.017         0.733
5112516       360         1-Dec-29        $ 272,797.39      56.52      GD 3YR                    0.250        0.017         0.000
5112530       360         1-Dec-29        $ 669,515.07      77.01      GD 3YR                    0.250        0.017         0.108
5112587       360         1-Jan-30        $ 267,841.00      80.00                                0.250        0.017         0.233
5112794       360         1-Dec-29        $ 295,563.45      68.00                                0.250        0.017         0.000
5112832       360         1-Dec-29        $ 258,226.62      80.00                                0.250        0.017         0.483
5113037       360         1-Jan-30        $ 342,000.00      90.00                                0.250        0.017         0.858
5113081       360         1-Dec-29        $ 331,782.82      80.00      GD 6YR                    0.250        0.017         0.608
5113117       360         1-Nov-29        $ 361,524.81      80.00                                0.250        0.017         0.608
5113302       360         1-Nov-29        $ 363,318.94      75.00                                0.250        0.017         1.108
5113432       360         1-Jan-30        $ 335,000.00      46.43                                0.250        0.017         0.108
5113500       360         1-Nov-29        $ 273,531.21      88.35                      06        0.250        0.017         0.483
5113541       360         1-Dec-29        $ 299,803.76      38.71                                0.250        0.017         0.608
5113904       360         1-Dec-29        $ 508,649.70      59.89                                0.250        0.017         0.358
5114009       360         1-Nov-29        $ 354,533.98      78.89                                0.250        0.017         0.608
5114065       360         1-Dec-29        $ 359,768.13      80.00                                0.250        0.017         0.733
5114080       360         1-Dec-29        $ 256,066.00      90.00                      06        0.250        0.017         0.233
5114146       360         1-Jan-30        $ 532,000.00      80.00                                0.250        0.017         0.608
5114545       360         1-Jan-30        $ 285,600.00      80.00                                0.250        0.017         0.608
5114552       360         1-Dec-29        $ 287,280.85      80.00                                0.250        0.017         0.000
5114901       360         1-Jan-30        $ 285,000.00      74.03                                0.250        0.017         0.358
5115306       360         1-Dec-29        $ 279,792.19      80.00                                0.250        0.017         0.000
5115747       360         1-Dec-29        $ 299,503.76      80.00                                0.250        0.017         0.608
5115763       360         1-Jan-30        $ 400,000.00      66.67                                0.250        0.017         0.483
5115817       360         1-Jan-30        $ 270,750.00      95.00                      01        0.250        0.017         0.733
5116063       360         1-Nov-29        $ 699,057.49      63.64                                0.250        0.017         0.483
5116093       360         1-Nov-29        $ 399,572.64      55.94                                0.250        0.017         1.608
5116429       360         1-Dec-29        $ 644,656.75      26.71                                0.250        0.017         1.608
5116514       360         1-Dec-29        $ 354,749.44      67.62                                0.250        0.017         0.233
5116640       360         1-Dec-29        $ 284,309.10      62.87                                0.250        0.017         0.483
5116834       360         1-Dec-29        $ 349,709.17      53.84                                0.250        0.017         0.358
5116867       360         1-Jan-30        $ 453,600.00      80.00      GD10YR                    0.250        0.017         0.108
5117013       360         1-Jan-30        $ 260,000.00      55.91                                0.250        0.017         0.000
5117032       360         1-Jan-30        $ 400,000.00      50.06                                0.250        0.017         0.000
5117171       360         1-Nov-29        $ 998,931.63      45.11                                0.250        0.017         1.608
5117203       360         1-Dec-29        $ 624,667.39      73.53                                0.250        0.017         1.608
5117258       360         1-Dec-29        $ 469,749.88      55.29                                0.250        0.017         1.608
5117771       360         1-Dec-29        $ 328,096.56      79.75                                0.250        0.017         0.608
5117816       360         1-Nov-29        $ 301,677.34      65.65                                0.250        0.017         1.608
5117828       360         1-Dec-29        $ 515,710.72      79.38                                0.250        0.017         1.358
5117849       360         1-Dec-29        $ 287,438.76      69.30                                0.250        0.017         1.358
5117968       360         1-Dec-29        $ 263,808.92      80.00                                0.250        0.017         0.108
5118034       360         1-Nov-29        $ 299,585.73      46.15                                0.250        0.017         0.358
5118129       360         1-Dec-29        $ 329,794.89      47.14                                0.250        0.017         0.858
5118275       360         1-Jan-30        $ 312,000.00      80.00                                0.250        0.017         0.358
5118297       360         1-Dec-29        $ 299,793.54      93.75                                0.250        0.017         0.358
5118464       360         1-Dec-29        $ 292,785.76      93.00                      06        0.250        0.017         1.358
5118637       360         1-Dec-29        $ 351,797.48      80.00                                0.250        0.017         1.233
5118665       360         1-Dec-29        $ 327,811.29      80.00                                0.250        0.017         1.233
5118843       360         1-Dec-29        $ 291,832.00      80.00                                0.250        0.017         1.233
5118847       360         1-Dec-29        $ 319,820.60      78.05                                0.250        0.017         1.358
5118864       360         1-Dec-29        $ 261,778.65      89.99                      12        0.250        0.017         0.608
5119126       360         1-Dec-29        $ 370,991.89      80.00                                0.250        0.017         1.358
5119200       360         1-Dec-29        $ 92,437.93       79.95                                0.250        0.017         0.483
5119426       300         1-Dec-24        $ 289,695.06      76.32                                0.250        0.017         0.483
5119660       360         1-Jan-30        $ 265,050.00      95.00                                0.250        0.017         0.108
5119661       360         1-Dec-29        $ 254,815.43      86.15                                0.250        0.017         0.108
5119780       360         1-Dec-29        $ 343,380.11      80.00                                0.250        0.017         0.733
5119812       360         1-Nov-29        $ 285,415.18      80.00                                0.250        0.017         0.483
5119905       360         1-Jan-30        $ 450,000.00      65.98                                0.250        0.017         0.483
5120507       360         1-Jan-30        $ 325,000.00      68.06                                0.250        0.017         0.483
5120531       360         1-Dec-29        $ 463,619.66      80.00                                0.250        0.017         0.000
5120821       360         1-Jan-30        $ 448,000.00      80.00                                0.250        0.017         0.858
5120951       360         1-Dec-29        $ 303,575.23      90.00                      33        0.250        0.017         1.233
5121133       360         1-Jan-30        $ 333,000.00      90.00                      33        0.250        0.017         1.233
5121195       360         1-Dec-29        $ 299,831.81      46.15                                0.250        0.017         1.358
5121243       360         1-Jan-30        $ 276,000.00      80.00                                0.250        0.017         1.108
5121324       360         1-Dec-29        $ 599,163.90      30.74                                0.250        0.017         1.358
5121327       360         1-Dec-29        $ 539,697.26      56.25                                0.250        0.017         1.358
5121365       360         1-Nov-29        $ 275,273.41      62.64                                0.250        0.017         1.108
5121531       360         1-Dec-29        $ 359,362.50      55.13                                0.250        0.017         1.358
5121536       360         1-Dec-29        $ 343,731.64      80.00                                0.250        0.017         0.000
5121606       360         1-Dec-29        $ 319,196.26      90.00                      33        0.250        0.017         0.733
5121648       360         1-Dec-29        $ 254,315.80      67.16                                0.250        0.017         0.108
5121806       360         1-Dec-29        $ 499,689.21      37.74                                0.250        0.017         0.858
5121850       360         1-Dec-29        $ 499,689.21      22.73                                0.250        0.017         0.858
5121992       360         1-Dec-29        $ 559,584.39      72.54      GD 3YR                    0.250        0.017         0.000
5122216       360         1-Dec-29        $ 283,604.69      80.00                                0.250        0.017         0.358
5122285       360         1-Dec-29        $ 459,649.97      35.66                                0.250        0.017         0.000
5122310       360         1-Dec-29        $ 291,424.91      79.98                                0.250        0.017         0.108
5122311       360         1-Dec-29        $ 499,697.10      65.62                                0.250        0.017         0.983
5122418       360         1-Dec-29        $ 999,257.85      30.54                                0.250        0.017         0.000
5122758       360         1-Dec-29        $ 314,799.14      75.00                                0.250        0.017         0.733
5123326       360         1-Dec-29        $ 438,905.31      80.00                                0.250        0.017         0.483
5123486       360         1-Dec-29        $ 435,668.23      80.00                                0.250        0.017         0.000
5123686       360         1-Nov-29        $ 294,050.44      93.89                      11        0.250        0.017         0.000
5123822       360         1-Dec-29        $ 313,319.63      75.00                                0.250        0.017         1.233
5123965       360         1-Jan-30        $ 300,000.00      89.55                      13        0.250        0.017         0.483
5124123       360         1-Dec-29        $ 299,413.78      80.00                                0.250        0.017         0.858
5124170       360         1-Nov-29        $ 379,488.35      80.00                                0.250        0.017         0.483
5124174       360         1-Nov-29        $ 343,459.90      76.42                                0.250        0.017         0.733
5124192       360         1-Jan-30        $ 254,500.00      58.93                                0.250        0.017         0.233
5125165       360         1-Dec-29        $ 915,972.70      65.00                                0.250        0.017         1.233
5125402       360         1-Dec-29        $ 359,719.16      80.00                                0.250        0.017         0.000
5125656       360         1-Dec-29        $ 463,733.04      79.86                                0.250        0.017         1.233
5125928       360         1-Dec-29        $ 501,303.85      79.98                                0.250        0.017         1.108
5125930       360         1-Jan-30        $ 350,000.00      79.91                                0.250        0.017         0.733
5126057       360         1-Jan-30        $ 283,600.00      79.66                                0.250        0.017         0.000
5126480       360         1-Jan-30        $ 265,000.00      68.83      GD 4YR                    0.250        0.017         0.733
5126584       360         1-Dec-29        $ 277,304.14      72.08                                0.250        0.017         0.233
5126888       360         1-Jan-30        $ 405,000.00      90.00                      33        0.250        0.017         0.983
5127005       360         1-Jan-30        $ 650,000.00      49.24                                0.250        0.017         0.108
5127101       360         1-Dec-29        $ 379,391.59      69.36                                0.250        0.017         1.233
5127120       360         1-Jan-30        $ 560,000.00      70.00                                0.250        0.017         1.358
5127123       360         1-Dec-29        $ 314,783.22      70.00                                0.250        0.017         0.358
5127132       360         1-Dec-29        $ 299,803.76      62.83                                0.250        0.017         0.608
5127215       360         1-Dec-29        $ 377,046.83      88.30                      33        0.250        0.017         0.483
5127297       360         1-Dec-29        $ 499,655.90      10.00                                0.250        0.017         0.358
5127421       360         1-Dec-29        $ 503,498.05      80.00                                0.250        0.017         0.000
5127702       360         1-Jan-30        $ 283,900.00      79.99                                0.250        0.017         0.608
5127771       360         1-Jan-30        $ 254,500.00      78.31                                0.250        0.017         0.000
5128321       360         1-Jan-30        $ 412,000.00      80.19                                0.250        0.017         0.608
5129075       360         1-Jan-30        $ 254,500.00      79.53                                0.250        0.017         0.000
5129850       360         1-Dec-29        $ 273,829.69      88.39                      24        0.250        0.017         0.858
5130424       360         1-Jan-30        $ 450,000.00      57.69                                0.250        0.017         0.608
5130668       360         1-Jan-30        $ 300,000.00      71.01                                0.250        0.017         0.358
5130854       360         1-Dec-29        $ 263,818.32      80.00                                0.250        0.017         0.358
5130868       360         1-Dec-29        $ 254,329.23      78.31                                0.250        0.017         0.483
5131516       360         1-Jan-30        $ 606,000.00      60.67                                0.250        0.017         1.358
5131547       360         1-Jan-30        $ 255,200.00      58.00                                0.250        0.017         0.233
5132499       360         1-Dec-29        $ 349,765.15      60.34                                0.250        0.017         0.483
5132831       360         1-Jan-30        $ 254,500.00      59.66                                0.250        0.017         0.000
5132950       360         1-Jan-30        $ 396,000.00      80.00                                0.250        0.017         0.483
5132959       360         1-Jan-30        $ 254,500.00      55.93                                0.250        0.017         0.233
5134499       360         1-Dec-29        $ 419,710.96      80.00                                0.250        0.017         0.358
5135267       360         1-Dec-29        $ 330,516.56      71.90                                0.250        0.017         0.233
5135494       360         1-Jan-30        $ 369,000.00      90.00                      33        0.250        0.017         1.358
5140193       360         1-Jan-30        $ 305,000.00      67.03                                0.250        0.017         0.858
6716248       360         1-Sep-28        $ 282,835.04      79.94                                0.250        0.017         0.000
6727769       360         1-Sep-29        $ 314,167.36      90.00                      06        0.250        0.017         0.608
6938137       360         1-Dec-29        $ 439,656.75      65.67                                0.250        0.017         0.000
6979513       360         1-Jul-29        $ 420,989.96      72.31                                0.250        0.017         0.000
7032843       360         1-Jul-29        $ 431,834.16      70.00                                0.250        0.017         0.000
7046461       360         1-Aug-28        $ 368,183.04      68.18                                0.250        0.017         0.000
7060604       360         1-Nov-29        $ 320,589.21      65.51                                0.250        0.017         0.733
7079209       360         1-Dec-29        $ 359,750.46      80.00                                0.250        0.017         0.483
7142744       360         1-Apr-29        $ 309,535.80      80.00                                0.250        0.017         0.000
7188991       360         1-Aug-29        $ 328,933.28      78.57                                0.250        0.017         0.733
7221574       360         1-Sep-29        $ 345,108.34      80.00                                0.250        0.017         0.733
7258614       360         1-Dec-29        $ 423,722.64      80.00                                0.250        0.017         0.608
7368289       360         1-Dec-29        $ 434,708.12      58.94                                0.250        0.017         0.483
7443205       360         1-Dec-29        $ 349,740.25      68.15                                0.250        0.017         0.000
7515818       360         1-Dec-29        $ 359,282.22      80.00                                0.250        0.017         0.983
7525208       360         1-Apr-29        $ 363,725.03      64.79                                0.250        0.017         0.000
7526856       360         1-Nov-29        $ 437,211.97      80.00                                0.250        0.017         0.233
7559414       240         1-Dec-19        $ 334,440.04      78.82                                0.250        0.017         0.608
7560751       360         1-Nov-29        $ 396,803.56      80.00                                0.250        0.017         0.733
7567696       360         1-Dec-29        $ 387,758.84      60.63                                0.250        0.017         0.858
7586195       360         1-Dec-29        $ 447,706.94      80.00                                0.250        0.017         0.608
7591915       360         1-Sep-29        $ 419,201.59      79.99                                0.250        0.017         0.233
7599992       360         1-Oct-29        $ 373,533.00      88.60                      17        0.250        0.017         0.108
7604174       360         1-Dec-29        $ 294,775.53      59.91                                0.250        0.017         0.000
7608812       360         1-Nov-29        $ 310,402.26      80.00                                0.250        0.017         0.733
7621729       360         1-Dec-29        $ 399,731.61      89.89                      33        0.250        0.017         0.483
7627329       360         1-Nov-29        $ 331,268.24      80.00                                0.250        0.017         0.108
7643370       360         1-Dec-29        $ 624,611.53      79.62                                0.250        0.017         0.858
7648754       240         1-Dec-19        $ 504,018.70      77.99                                0.250        0.017         0.733
7660941       360         1-Dec-29        $ 387,119.61      59.81                                0.250        0.017         0.108
7676682       360         1-Apr-29        $ 255,438.50      80.00                                0.250        0.017         0.000
7692101       360         1-Nov-29        $ 273,399.68      75.00                                0.250        0.017         0.733
7693404       360         1-Dec-29        $ 269,789.37      68.30                                0.250        0.017         0.000
7697623       360         1-Dec-29        $ 305,679.89      80.00                                0.250        0.017         0.858
7703118       360         1-Dec-29        $ 309,372.92      62.50                                0.250        0.017         0.000
7705085       360         1-Nov-29        $ 287,092.85      79.99                                0.250        0.017         0.233
7707311       360         1-Oct-29        $ 383,097.53      79.99                                0.250        0.017         0.983
7712066       360         1-Dec-29        $ 251,376.89      79.99                                0.250        0.017         0.358
7722748       360         1-Dec-29        $ 350,970.27      80.00                                0.250        0.017         0.608
7728219       360         1-Dec-29        $ 285,308.33      63.31                                0.250        0.017         0.483
7732743       360         1-Jan-30        $ 365,840.00      79.79                                0.250        0.017         0.858
7737543       360         1-Dec-29        $ 402,729.60      68.89                                0.250        0.017         0.483
7739465       360         1-Aug-29        $ 260,529.39      90.00                      01        0.250        0.017         0.608
7757719       360         1-Nov-29        $ 303,377.09      79.18                                0.250        0.017         1.233
7767687       360         1-Dec-29        $ 325,311.58      80.21                                0.250        0.017         0.483
7769915       360         1-Dec-29        $ 372,219.66      80.00                                0.250        0.017         0.358
7774612       360         1-Aug-29        $ 358,806.50      80.00                                0.250        0.017         0.608
7782495       360         1-Nov-29        $ 261,137.83      90.00                      33        0.250        0.017         0.858
7788351       360         1-Oct-29        $ 269,505.80      86.74                      11        0.250        0.017         0.983
7794696       360         1-Oct-29        $ 299,376.55      68.09                                0.250        0.017         0.358
7795774       360         1-Dec-29        $ 299,793.54      69.29                                0.250        0.017         0.358
7804741       360         1-Nov-29        $ 350,573.21      90.00                      01        0.250        0.017         0.983
7806677       360         1-Aug-29        $ 373,591.00      71.43                                0.250        0.017         0.000
7809871       360         1-Aug-29        $ 342,915.89      80.00                                0.250        0.017         0.858
7813729       360         1-Dec-29        $ 384,498.21      80.00                                0.250        0.017         0.358
7821313       360         1-Nov-29        $ 306,626.73      68.22                                0.250        0.017         0.983
7822178       360         1-Dec-29        $ 546,982.74      80.00                                0.250        0.017         0.483
7822442       360         1-Nov-29        $ 366,507.00      80.00                                0.250        0.017         0.108
7822449       360         1-Dec-29        $ 282,855.21      79.99                                0.250        0.017         0.358
7822568       360         1-Oct-29        $ 317,886.53      79.99                                0.250        0.017         0.733
7836224       360         1-Nov-29        $ 336,446.39      79.99                                0.250        0.017         0.483
7836648       360         1-Nov-29        $ 524,218.30      70.00                                0.250        0.017         0.000
7845335       360         1-Dec-29        $ 279,812.13      50.91                                0.250        0.017         0.483
7852396       360         1-Nov-29        $ 299,616.08      67.87                                0.250        0.017         0.733
7865056       360         1-Dec-29        $ 434,708.12      78.43                                0.250        0.017         0.483
7872135       360         1-Dec-29        $ 349,771.05      77.37                                0.250        0.017         0.608
7873425       360         1-Oct-29        $ 280,435.89      87.28                      11        0.250        0.017         0.108
7875783       360         1-Oct-29        $ 419,170.19      80.00                                0.250        0.017         0.608
7878050       360         1-Dec-29        $ 289,819.75      80.00                                0.250        0.017         0.858
7883241       360         1-Nov-29        $ 299,368.19      57.14                                0.250        0.017         0.733
7885132       360         1-Jan-30        $ 335,450.00      79.67                                0.250        0.017         0.358
7888708       360         1-Dec-29        $ 251,223.24      95.00                      13        0.250        0.017         1.358
7895247       360         1-Dec-29        $ 308,731.94      80.00                                0.250        0.017         0.233
7897287       360         1-Dec-29        $ 329,794.89      75.00                                0.250        0.017         0.858
7901649       360         1-Dec-29        $ 469,700.30      69.63                                0.250        0.017         0.733
7905984       360         1-Jan-30        $ 287,650.00      80.00                                0.250        0.017         0.983
7906017       360         1-Dec-29        $ 259,821.07      80.00                                0.250        0.017         0.358
7906127       360         1-Dec-29        $ 649,541.24      62.80                                0.250        0.017         0.233
7906672       360         1-Oct-29        $ 171,201.83      70.00                                0.250        0.017         1.233
7907879       360         1-Dec-29        $ 279,697.42      79.99                                0.250        0.017         0.108
7911248       360         1-Nov-29        $ 274,207.51      95.00                      06        0.250        0.017         0.858
7912066       360         1-Nov-29        $ 349,565.57      59.83                                0.250        0.017         0.983
7914097       360         1-Jan-30        $ 742,000.00      70.00                                0.250        0.017         0.608
7916339       360         1-Nov-29        $ 299,616.08      65.93                                0.250        0.017         0.733
7917756       360         1-Dec-29        $ 274,824.65      73.33                                0.250        0.017         0.733
7918122       360         1-Nov-29        $ 415,425.54      74.95                                0.250        0.017         0.358
7918322       360         1-Dec-29        $ 499,689.22      77.33                                0.250        0.017         0.858
7918837       360         1-Dec-29        $ 503,168.85      80.00                                0.250        0.017         0.983
7922642       360         1-Dec-29        $ 299,813.53      80.00                                0.250        0.017         0.858
7923585       360         1-Dec-29        $ 266,170.45      80.00                                0.250        0.017         0.858
7924927       360         1-Dec-29        $ 949,362.57      69.85                                0.250        0.017         0.483
7925021       360         1-Nov-29        $ 424,413.12      70.36                                0.250        0.017         0.358
7926764       360         1-Dec-29        $ 89,942.61       48.00                                0.250        0.017         0.733
7929662       360         1-Jan-30        $ 280,000.00      80.00                                0.250        0.017         0.733
7929863       360         1-Dec-29        $ 300,262.46      80.00                                0.250        0.017         0.608
7931837       360         1-Dec-29        $ 275,824.00      80.00                                0.250        0.017         0.733
7931888       360         1-Dec-29        $ 329,772.90      77.65                                0.250        0.017         0.358
7934865       360         1-Dec-29        $ 539,646.77      67.50                                0.250        0.017         0.608
7935453       360         1-Nov-29        $ 209,301.97      70.00                                0.250        0.017         0.858
7936285       360         1-Jan-30        $ 535,000.00      63.69                                0.250        0.017         0.483
7938808       360         1-Dec-29        $ 302,872.75      80.00                                0.250        0.017         0.608
7941410       360         1-Dec-29        $ 336,940.96      80.00                                0.250        0.017         0.358
7941856       360         1-Dec-29        $ 349,703.78      88.60                      01        0.250        0.017         1.358
7942069       360         1-Nov-29        $ 354,950.11      89.99                      13        0.250        0.017         1.358
7943181       360         1-Dec-29        $ 359,770.44      80.00                                0.250        0.017         0.733
7943690       360         1-Dec-29        $ 313,369.55      80.00                                0.250        0.017         0.983
7944189       360         1-Dec-29        $ 349,721.08      80.00                                0.250        0.017         0.608
7944370       360         1-Nov-29        $ 282,628.50      48.79                                0.250        0.017         0.608
7944461       360         1-Nov-29        $ 375,655.89      80.00                                0.250        0.017         0.608
7944532       360         1-Dec-29        $ 545,633.65      70.00                                0.250        0.017         0.483
7944865       360         1-Nov-29        $ 597,073.15      70.00                                0.250        0.017         0.983
7945375       360         1-Dec-29        $ 319,416.13      84.98                      13        0.250        0.017         1.233
7946966       360         1-Dec-29        $ 595,619.95      70.00                                0.250        0.017         0.733
7947270       360         1-Dec-29        $ 524,620.02      72.41                                0.250        0.017         0.108
7947800       360         1-Dec-29        $ 274,833.41      62.79                                0.250        0.017         0.983
7947817       360         1-Nov-29        $ 327,565.63      80.00                                0.250        0.017         0.858
7948435       360         1-Dec-29        $ 290,050.26      90.00                      01        0.250        0.017         0.358
7949404       360         1-Dec-29        $ 287,811.61      80.00                                0.250        0.017         0.608
7949506       360         1-Dec-29        $ 335,791.16      80.00                                0.250        0.017         0.858
7950126       360         1-Dec-29        $ 299,818.26      75.00                                0.250        0.017         0.983
7951038       360         1-Dec-29        $ 374,728.58      70.62                                0.250        0.017         0.108
7951359       360         1-Nov-29        $ 435,442.05      80.00                                0.250        0.017         0.733
7951543       360         1-Nov-29        $ 471,314.59      80.00                                0.250        0.017         0.108
7952843       360         1-Nov-29        $ 259,640.97      72.24                                0.250        0.017         0.358
7953725       360         1-Nov-29        $ 244,170.81      77.37                                0.250        0.017         0.483
7953906       360         1-Nov-29        $ 374,507.74      78.95                                0.250        0.017         0.608
7955312       360         1-Nov-29        $ 291,635.75      80.00                                0.250        0.017         0.858
7955779       360         1-Nov-29        $ 368,258.94      54.63                                0.250        0.017         0.608
7956585       360         1-Dec-29        $ 398,958.17      79.86                                0.250        0.017         0.983
7956689       360         1-Nov-29        $ 319,569.13      72.73                                0.250        0.017         0.483
7957062       360         1-Dec-29        $ 269,823.38      90.00                      01        0.250        0.017         0.608
7957375       360         1-Dec-29        $ 423,743.14      80.00                                0.250        0.017         0.983
7957772       360         1-Dec-29        $ 315,625.08      90.00                      33        0.250        0.017         0.483
7959390       360         1-Jan-30        $ 430,240.00      80.00                                0.250        0.017         0.608
7959829       360         1-Jan-30        $ 388,000.00      80.00                                0.250        0.017         0.483
7959876       360         1-Dec-29        $ 274,815.48      41.84                                0.250        0.017         0.483
7959884       360         1-Nov-29        $ 449,346.55      58.06                                0.250        0.017         0.108
7960044       360         1-Nov-29        $ 499,360.15      75.82                                0.250        0.017         0.733
7960254       360         1-Nov-29        $ 430,072.03      80.00                                0.250        0.017         0.233
7960540       360         1-Dec-29        $ 390,750.68      85.00                      11        0.250        0.017         0.733
7960687       360         1-Nov-29        $ 344,558.50      74.91                                0.250        0.017         0.733
7961036       360         1-Dec-29        $ 255,295.25      94.98                      11        0.250        0.017         0.983
7961203       360         1-Dec-29        $ 307,004.11      80.00                                0.250        0.017         0.733
7961223       360         1-Nov-29        $ 267,929.51      84.91                      11        0.250        0.017         0.358
7961459       360         1-Nov-29        $ 367,491.82      49.14                                0.250        0.017         0.358
7961551       360         1-Nov-29        $ 309,582.61      68.28                                0.250        0.017         0.483
7961576       360         1-Dec-29        $ 299,808.70      93.02                      01        0.250        0.017         0.733
7962881       360         1-Dec-29        $ 387,515.99      80.00                                0.250        0.017         0.858
7963377       360         1-Dec-29        $ 155,907.90      75.00                                0.250        0.017         1.108
7964860       360         1-Dec-29        $ 268,682.90      95.00                      06        0.250        0.017         0.858
7964868       360         1-Nov-29        $ 281,838.88      89.99                      11        0.250        0.017         0.733
7965399       360         1-Nov-29        $ 274,947.69      74.41                                0.250        0.017         0.733
7966275       360         1-Dec-29        $ 139,901.19      78.65                                0.250        0.017         0.233
7966913       360         1-Nov-29        $ 260,393.70      80.00                                0.250        0.017         0.358
7967700       360         1-Nov-29        $ 275,566.91      80.00                                0.250        0.017         0.733
7968652       360         1-Dec-29        $ 86,945.93       63.50                                0.250        0.017         0.858
7968743       360         1-Jan-30        $ 272,000.00      79.78                                0.250        0.017         0.000
7968859       360         1-Jan-30        $ 262,000.00      58.88                                0.250        0.017         0.233
7968869       360         1-Dec-29        $ 295,163.21      80.00                                0.250        0.017         0.108
7969679       360         1-Nov-29        $ 287,649.82      90.00                      33        0.250        0.017         0.983
7970211       360         1-Dec-29        $ 323,803.72      80.00                                0.250        0.017         0.983
7970303       360         1-Jan-30        $ 272,000.00      80.00                                0.250        0.017         0.733
7970318       360         1-Nov-29        $ 306,706.87      80.00                                0.250        0.017         0.733
7970856       360         1-Dec-29        $ 369,725.41      78.72                                0.250        0.017         0.000
7971436       360         1-Dec-29        $ 349,365.43      80.00                                0.250        0.017         0.483
7971490       360         1-Jan-30        $ 450,000.00      52.02                                0.250        0.017         0.733
7971734       360         1-Dec-29        $ 449,705.63      47.37                                0.250        0.017         0.608
7971842       360         1-Dec-29        $ 264,817.63      74.86                                0.250        0.017         0.358
7973290       360         1-Dec-29        $ 359,658.51      80.00                                0.250        0.017         0.483
7973997       360         1-Dec-29        $ 499,655.90      56.82                                0.250        0.017         0.358
7974084       360         1-Dec-29        $ 494,892.20      80.00                                0.250        0.017         0.858
7975604       360         1-Jan-30        $ 385,000.00      76.24                                0.250        0.017         0.608
7977418       360         1-Dec-29        $ 351,781.22      80.00                                0.250        0.017         0.858
7977471       360         1-Dec-29        $ 431,710.14      80.00                                0.250        0.017         0.483
7977502       360         1-Nov-29        $ 214,518.03      80.00                                0.250        0.017         0.608
7977581       360         1-Dec-29        $ 293,821.89      70.00                                0.250        0.017         0.983
7977646       360         1-Dec-29        $ 513,438.77      75.00                                0.250        0.017         0.983
7978478       360         1-Jan-30        $ 351,818.00      80.00                                0.250        0.017         0.483
7978884       360         1-Dec-29        $ 399,717.68      50.64                                0.250        0.017         0.233
7978980       360         1-Jan-30        $ 265,000.00      79.10                                0.250        0.017         0.733
7980077       360         1-Dec-29        $ 364,748.81      40.83                                0.250        0.017         0.358
7981372       360         1-Dec-29        $ 327,296.44      76.61                                0.250        0.017         0.858
7981731       360         1-Dec-29        $ 280,207.04      80.00                                0.250        0.017         0.358
7981893       360         1-Nov-29        $ 307,574.69      80.00                                0.250        0.017         0.358
7982124       360         1-Jan-30        $ 272,000.00      80.00                                0.250        0.017         0.233
7982605       360         1-Jan-30        $ 329,600.00      80.00                                0.250        0.017         0.358
7982755       360         1-Dec-29        $ 727,486.19      70.00                                0.250        0.017         0.233
7982954       360         1-Dec-29        $ 309,290.29      80.00                                0.250        0.017         0.000
7983331       360         1-Jan-30        $ 144,500.00      56.45                                0.250        0.017         1.233
7984891       360         1-Dec-29        $ 359,758.45      69.57                                0.250        0.017         0.483
7985065       360         1-Dec-29        $ 283,834.54      80.00                                0.250        0.017         0.358
7986320       360         1-Dec-29        $ 319,785.28      71.43                                0.250        0.017         0.483
7986433       360         1-Dec-29        $ 251,093.84      75.00                                0.250        0.017         0.858
7986924       360         1-Jan-30        $ 324,000.00      80.00                                0.250        0.017         0.608
7987452       360         1-Dec-29        $ 283,729.50      80.00                                0.250        0.017         0.483
7987490       360         1-Dec-29        $ 649,563.86      59.14                                0.250        0.017         0.483
7987803       360         1-Dec-29        $ 363,368.14      90.00                      01        0.250        0.017         0.733
7989440       360         1-Dec-29        $ 399,763.84      89.89                      01        0.250        0.017         1.108
7990423       360         1-Dec-29        $ 317,381.43      80.00                                0.250        0.017         0.358
7990444       360         1-Dec-29        $ 350,964.35      80.00                                0.250        0.017         0.483
7990552       360         1-Dec-29        $ 495,683.72      80.00                                0.250        0.017         0.733
7991068       360         1-Jan-30        $ 372,000.00      80.00                                0.250        0.017         0.000
7991739       360         1-Dec-29        $ 327,940.75      80.00                                0.250        0.017         0.733
7992149       360         1-Jan-30        $ 369,000.00      77.52                                0.250        0.017         0.858
7993531       360         1-Dec-29        $ 335,796.45      89.60                      11        0.250        0.017         0.983
7994069       360         1-Dec-29        $ 849,457.98      60.71                                0.250        0.017         0.733
7994977       360         1-Dec-29        $ 301,387.13      80.00                                0.250        0.017         0.233
7995093       360         1-Dec-29        $ 376,853.32      90.00                      01        0.250        0.017         0.608
7995951       360         1-Jan-30        $ 355,500.00      90.00                      17        0.250        0.017         0.858
7996999       360         1-Dec-29        $ 639,559.56      49.23                                0.250        0.017         0.358
7997477       360         1-Dec-29        $ 267,815.56      80.00                                0.250        0.017         0.358
7997760       360         1-Dec-29        $ 369,311.68      70.00                                0.250        0.017         0.000
7998095       360         1-Jan-30        $ 388,000.00      80.00                                0.250        0.017         0.000
7998782       360         1-Dec-29        $ 270,371.81      90.00                      33        0.250        0.017         0.358
8002576       360         1-Dec-29        $ 287,787.22      81.67                      11        0.250        0.017         0.108
8003236       360         1-Jan-30        $ 306,900.00      90.00                      33        0.250        0.017         0.983
8004685       360         1-Dec-29        $ 287,381.16      79.91                                0.250        0.017         0.000
8004927       360         1-Jan-30        $ 595,000.00      43.45                                0.250        0.017         0.358
8005397       360         1-Dec-29        $ 282,828.55      65.81                                0.250        0.017         0.983
8005816       360         1-Jan-30        $ 475,800.00      66.08                                0.250        0.017         0.608
8007658       360         1-Jan-30        $ 275,000.00      52.99                                0.250        0.017         0.000
8011692       360         1-Jan-30        $ 550,000.00      76.39                                0.250        0.017         0.483
8011768       360         1-Jan-30        $ 300,000.00      78.43                                0.250        0.017         0.983
8017462       360         1-Jan-30        $ 331,700.00      77.74                              0  0.250       0.017         0.733

                                        $160,968,125.03


COUNT:                                        446
WAC:                                  8.044779389
WAM:                                  357.4793592
WALTV:                                73.74727927

</TABLE>



<PAGE>


<TABLE>
<CAPTION>


                                  EXHIBIT F-2B

 [Schedule of Group II Mortgage Loans Serviced by Norwest Mortgage in Frederick,
                                    Maryland]


NASCOR
NMI / 2000-01  Exhibit F-2B
30 YEAR FIXED RATE RELOCATION  LOANS

  (i)       (ii)                                                      (iii)          (iv)           (v)              (vi)
 -----      ---------------------------      -----      -----       --------       --------      --------         ----------
                                                                                                    NET
ORTGAGE                                                                            MORTGAGE      MORTGAGE           CURRENT
 LOAN                                                    ZIP        PROPERTY       INTEREST      INTEREST           MONTHLY
NUMBER      CITY                             STATE       CODE         TYPE           RATE          RATE             PAYMENT
- -------     -----------------------------------------------------   --------       --------      --------         ----------
<S>        <C>                                <C>     <C>             <C>         <C>            <C>            <C>
4852680     NEW HOPE                           PA       18938          SFD          7.500          7.233          $ 1,835.44
4894456     MENLO PARK                         CA       94025          LCO          7.250          6.983          $ 3,891.82
4925547     BUDD LAKE                          NJ       07828          SFD          7.500          7.233          $ 1,869.01
4946594     SAINT CHARLES                      MO       63304          SFD          8.000          7.250          $ 2,201.30
4967912     KENNETT SQUARE                     PA       19348          SFD          8.000          7.250          $ 2,558.64
4986269     YORKTOWN HEIGHTS                   NY       10598          SFD          7.875          7.250          $ 3,038.41
4997574     FLEMINGTON                         NJ       08822          SFD          7.375          7.108          $ 2,072.03
4998200     ALEXANDRIA                         NJ       08848          SFD          7.375          7.108          $ 2,403.55
5010506     GRAYSLAKE                          IL       60030          SFD          6.500          6.233          $ 2,025.15
5013803     MONTVALE                           NJ       07645          SFD          7.750          7.250          $ 3,856.45
5049609     PORTAGE                            MI       49024          SFD          6.875          6.608          $ 2,077.21
5055863     CHESAPEAKE                         VA       23322          SFD          8.500          7.250          $ 2,008.79
5056033     SUDBURY                            MA       01776          SFD          7.500          7.233          $ 3,496.08
5056419     NEW YORK                           NY       10024          COP          8.000          7.250          $ 2,001.71
5056709     ROSELAND                           NJ       07068          LCO          7.750          7.250          $ 2,195.09
5062913     RANDOLPH                           NJ       07869          SFD          8.125          7.250          $ 2,471.23
5063824     SAN RAMON                          CA       94583          SFD          7.750          7.250          $ 2,567.63
5063827     SPRINGBORO                         OH       45066          SFD          8.500          7.250          $ 2,264.46
5070209     ELIZABETH                          CO       80107          SFD          7.750          7.250          $ 2,020.29
5073198     SMYRNA                             GA       30082          SFD          8.250          7.250          $ 2,399.94
5073369     CHARLOTTE                          NC       28277          SFD          6.750          6.483          $ 2,594.40
5076369     SAN CLEMENTE                       CA       92673          SFD          8.125          7.250          $ 2,434.48
5077734     BELLE MEAD                         NJ       08502          SFD          8.250          7.250          $ 2,898.24
5078193     ENGLISHTOWN                        NJ       07760          SFD          8.125          7.250          $ 1,959.60
5081687     BALTIMORE                          MD       21212          SFD          8.000          7.250          $ 1,888.71
5082471     RIDGEFIELD                         CT       06877          SFD          7.625          7.250          $ 2,831.18
5084882     GREENVILLE                         DE       19807          SFD          8.375          7.250          $ 7,296.70
5086241     VALLEJO                            CA       94591          SFD          7.875          7.250          $ 2,269.47
5091928     HIGHLAND PARK                      IL       60035          SFD          7.500          7.233          $ 2,796.86
5092136     BELLEVUE                           WA       98006          SFD          8.000          7.250          $ 2,751.62
5092462     SAN RAMON                          CA       94583          SFD          7.625          7.250          $ 2,168.69
5096479     SAINT ALBANS                       MO       63073          SFD          7.875          7.250          $ 3,299.07
5096829     AMES                               IA       50014          SFD          8.000          7.250          $ 1,981.17
5098217     ANDOVER                            NJ       07821          SFD          7.750          7.250          $ 2,034.62
5098656     BERWYN                             PA       19312          SFD          7.875          7.250          $ 2,697.26
5100170     ISSAQUAH                           WA       98029          SFD          8.125          7.250          $ 2,220.07
5100608     LOS GATOS                          CA       95030          SFD          7.625          7.250          $ 4,706.83
5101176     ISSAQUAH                           WA       98029          SFD          7.750          7.250          $ 2,507.45
5102646     AMBLER                             PA       19002          SFD          7.375          7.108          $ 2,701.76
5102872     BERNARDS                           NJ       07920          SFD          7.500          7.233          $ 2,873.78
5103281     EAST MARLBOROUGH                   PA       19348          SFD          8.250          7.250          $ 2,562.58
5104155     ACTON                              MA       01720          SFD          7.500          7.233          $ 2,696.18
5104212     HOUSTON                            TX       77041          SFD          7.500          7.233          $ 1,957.81
5105560     RIDGEFIELD                         CT       06877          SFD          7.500          7.233          $ 2,553.54
5106607     JACKSON                            NJ       08527          SFD          8.125          7.250          $ 1,833.27
5107038     CHICAGO                            IL       60647          SFD          7.750          7.250          $ 2,349.84
5107116     MAMMOTH LAKES                      CA       93546          SFD          7.375          7.108          $ 1,989.15
5107418     WILTON                             CT       06897          SFD          7.250          6.983          $ 2,728.71
5109089     WESTERVILLE                        OH       43082          SFD          7.750          7.250          $ 2,399.27
5109369     HOOVER                             AL       35244          SFD          7.875          7.250          $ 2,030.20
5109858     FARMINGTON                         CT       06032          SFD          7.500          7.233          $ 4,457.50
5109860     LIVERMORE                          CA       94550          SFD          7.625          7.250          $ 2,194.17
5110343     PLYMOUTH                           MI       48170          SFD          7.625          7.250          $ 2,470.94
5110450     BROOKFIELD                         CT       06804          SFD          7.875          7.250          $ 1,893.56
5110611     CONROE                             TX       77304          SFD          7.500          7.233          $ 2,377.33
5111039     ERIE                               CO       80516          SFD          7.875          7.250          $ 2,356.48
5111079     SANTA CLARA                        CA       95051          SFD          8.125          7.250          $ 2,227.50
5112971     WALPOLE                            MA       02081          SFD          8.250          7.250          $ 2,629.44
5113023     RIDGEWOOD                          NJ       07450          SFD          7.750          7.250          $ 2,521.20
5113102     PLEASANTON                         CA       94566          PUD          8.000          7.250          $ 2,306.96
5114748     WHITE HOUSE STATION                NJ       08889          SFD          7.750          7.250          $ 3,381.47
5114839     LIVERMORE                          CA       94550          SFD          7.875          7.250          $ 1,943.19
5114994     WALNUT CREEK                       CA       94596          SFD          8.000          7.250          $ 2,802.99
5117632     NOVATO                             CA       94947          SFD          7.875          7.250          $ 2,265.85
5117641     TAMPA                              FL       33647          SFD          7.625          7.250          $ 2,590.53
5117781     ALISO VIEJO                        CA       92656          SFD          7.250          6.983          $ 1,964.67
5121296     NORTH HAMPTON                      NH       03862          SFD          7.750          7.250          $ 3,668.75
5124285     HOUSTON                            TX       77098          SFD          8.500          7.250          $ 2,300.97
5129355     SPRING                             TX       77382          PUD          7.000          6.733          $ 1,693.20
5130200     AUSTIN                             TX       78746          SFD          7.750          7.250          $ 2,089.64


NASCOR
NMI / 2000-01  Exhibit F-2B
30 YEAR FIXED RATE RELOCATION  LOANS

(continued)



  (i)           (vii)       (viii)           (ix)          (x)       (xi)          (xii)    (xiii)     (xiv)          (xv)
 -----        --------    ----------    --------------   ------   ---------     ---------- -------- -----------   --------
                                           CUT-OFF
ORTGAGE       ORIGINAL    SCHEDULED          DATE                                MORTGAGE             MASTER         FIXED
 LOAN          TERM TO     MATURITY       PRINCIPAL                              INSURANCE SERVICE    SERVICE       RETAIN
NUMBER        MATURITY       DATE          BALANCE         LTV     SUBSIDY         CODE      FEE        FEE          YIELD
- -------       --------   -----------    --------------   ------   ---------     ---------- -------- -----------   --------
4852680          360       1-Sep-29      $ 261,713.41     68.90                             0.250      0.017         0.000
4894456          360       1-Dec-29      $ 570,054.95     70.00                             0.250      0.017         0.000
4925547          360       1-Dec-29      $ 267,101.62     90.00                             0.250      0.017         0.000
4946594          360       1-Dec-29      $ 299,798.70     93.56                             0.250      0.017         0.483
4967912          360       1-Dec-29      $ 348,466.03     89.99                     06      0.250      0.017         0.483
4986269          360       1-Dec-29      $ 418,761.61     85.00                             0.250      0.017         0.358
4997574          360       1-Dec-29      $ 299,771.72     63.83                             0.250      0.017         0.000
4998200          360       1-Dec-29      $ 347,735.20     79.63                             0.250      0.017         0.000
5010506          360       1-Jul-29      $ 318,131.68     79.99                             0.250      0.017         0.000
5013803          360       1-Jan-30      $ 538,300.00     66.87                             0.250      0.017         0.233
5049609          360       1-Dec-29      $ 315,934.35     70.00                             0.250      0.017         0.000
5055863          360       1-Dec-29      $ 261,091.73     95.00                             0.250      0.017         0.983
5056033          360       1-Dec-29      $ 499,628.92     51.81                             0.250      0.017         0.000
5056419          360       1-Jan-30      $ 272,800.00     80.00                             0.250      0.017         0.483
5056709          360       1-Dec-29      $ 306,183.74     80.00                             0.250      0.017         0.233
5062913          360       1-Jan-30      $ 332,826.00     79.94                             0.250      0.017         0.608
5063824          360       1-Dec-29      $ 358,147.04     80.00     GD 3YR                  0.250      0.017         0.233
5063827          360       1-Dec-29      $ 294,321.22     95.00                             0.250      0.017         0.983
5070209          360       1-Jan-30      $ 282,000.00     80.00                             0.250      0.017         0.233
5073198          360       1-Dec-29      $ 319,248.29     90.00                             0.250      0.017         0.733
5073369          360       1-Jan-30      $ 400,000.00     57.15     GD 3YR                  0.250      0.017         0.000
5076369          360       1-Dec-29      $ 327,662.52     82.82     GD 3YR          06      0.250      0.017         0.608
5077734          360       1-Dec-29      $ 385,534.00     80.00                             0.250      0.017         0.733
5078193          360       1-Dec-29      $ 263,747.36     80.00                             0.250      0.017         0.608
5081687          360       1-Dec-29      $ 257,227.29     90.00                     06      0.250      0.017         0.483
5082471          360       1-Dec-29      $ 399,710.49     67.80                             0.250      0.017         0.108
5084882          360       1-Jan-30      $ 960,000.00     80.00                             0.250      0.017         0.858
5086241          360       1-Dec-29      $ 312,784.59     66.85                             0.250      0.017         0.358
5091928          360       1-Jan-30      $ 400,000.00     40.82                             0.250      0.017         0.000
5092136          360       1-Jan-30      $ 375,000.00     57.10     GD 5YR                  0.250      0.017         0.483
5092462          360       1-Dec-29      $ 306,178.23     80.00     GD 3YR                  0.250      0.017         0.108
5096479          360       1-Jan-30      $ 455,000.00     66.91                             0.250      0.017         0.358
5096829          360       1-Dec-29      $ 269,818.83     87.10                     06      0.250      0.017         0.483
5098217          360       1-Dec-29      $ 283,799.55     87.65                     06      0.250      0.017         0.233
5098656          360       1-Dec-29      $ 371,743.99     78.81                             0.250      0.017         0.358
5100170          360       1-Dec-29      $ 298,804.41     85.67                     06      0.250      0.017         0.608
5100608          360       1-Dec-29      $ 664,518.69     70.00                             0.250      0.017         0.108
5101176          360       1-Jan-30      $ 350,000.00     73.38                             0.250      0.017         0.233
5102646          360       1-Dec-29      $ 390,878.34     80.00                             0.250      0.017         0.000
5102872          360       1-Jan-30      $ 411,000.00     53.03                             0.250      0.017         0.000
5103281          360       1-Dec-29      $ 340,882.48     90.00                             0.250      0.017         0.733
5104155          360       1-Jan-30      $ 385,600.00     80.00     GD 5YR                  0.250      0.017         0.000
5104212          360       1-Dec-29      $ 279,792.19     80.00                             0.250      0.017         0.000
5105560          360       1-Jan-30      $ 365,200.00     80.00                             0.250      0.017         0.000
5106607          360       1-Dec-29      $ 246,743.48     95.00     GD 5YR          06      0.250      0.017         0.608
5107038          360       1-Jan-30      $ 328,000.00     80.00                             0.250      0.017         0.233
5107116          360       1-Jan-30      $ 288,000.00     80.00     GD 3YR                  0.250      0.017         0.000
5107418          360       1-Dec-29      $ 399,687.96     89.89                     01      0.250      0.017         0.000
5109089          360       1-Dec-29      $ 334,663.63     85.00                     06      0.250      0.017         0.233
5109369          360       1-Jan-30      $ 280,000.00     75.47                             0.250      0.017         0.358
5109858          360       1-Dec-29      $ 637,026.88     63.91                             0.250      0.017         0.000
5109860          360       1-Dec-29      $ 309,775.62     77.73     GD 4YR                  0.250      0.017         0.108
5110343          360       1-Dec-29      $ 348,851.33     80.00                             0.250      0.017         0.108
5110450          360       1-Dec-29      $ 260,975.27     95.00                             0.250      0.017         0.358
5110611          360       1-Dec-29      $ 339,747.67     80.00                             0.250      0.017         0.000
5111039          360       1-Dec-29      $ 324,776.33     76.47                             0.250      0.017         0.358
5111079          360       1-Dec-29      $ 299,803.75     80.00                             0.250      0.017         0.608
5112971          360       1-Dec-29      $ 349,776.81     53.85                             0.250      0.017         0.733
5113023          360       1-Jan-30      $ 351,920.00     80.00     GD 3YR                  0.250      0.017         0.233
5113102          360       1-Dec-29      $ 314,189.04     80.00     GD 2YR                  0.250      0.017         0.483
5114748          360       1-Jan-30      $ 472,000.00     80.00                             0.250      0.017         0.233
5114839          360       1-Jan-30      $ 268,000.00     80.00     GD 3YR                  0.250      0.017         0.358
5114994          360       1-Jan-30      $ 382,000.00     79.58                             0.250      0.017         0.483
5117632          360       1-Dec-29      $ 312,284.93     38.46                             0.250      0.017         0.358
5117641          360       1-Dec-29      $ 365,735.10     65.24                             0.250      0.017         0.108
5117781          360       1-Dec-29      $ 287,775.33     80.00                             0.250      0.017         0.000
5121296          360       1-Dec-29      $ 511,738.56     90.00                             0.250      0.017         0.233
5124285          360       1-Nov-29      $ 298,886.14     95.00                     01      0.250      0.017         0.983
5129355          360       1-Jan-30      $ 254,500.00     77.90                             0.250      0.017         0.000
5130200          360       1-Jan-30      $ 291,680.00     79.91                             0.250      0.017         0.233

                                        $25,025,437.00



    COUNT:                                   70
     WAC:                           7.748210686
     WAM:                           359.2305311
    WALTV:                          76.44389195

</TABLE>


<PAGE>


<TABLE>
<CAPTION>


                                   EXHIBIT F-3

        [Schedule of Group I Mortgage Loans Serviced by Other Servicers]



NASCOR
NMI / 2000-01  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS


(i)          (ii)                                              (iii)         (iv)          (v)           (vi)          (vii)
- -----        ------------------------     -----     -----     --------     --------     --------      ----------      --------
                                                                                           NET
MORTGAGE                                                                   MORTGAGE     MORTGAGE        CURRENT       ORIGINAL
LOAN                                                 ZIP      PROPERTY     INTEREST     INTEREST        MONTHLY       TERM TO
NUMBER       CITY                         STATE     CODE        TYPE         RATE         RATE          PAYMENT       MATURITY
- --------     ---------------------------------------------------------     --------     --------      ----------      --------
<S>         <C>                         <C>       <C>          <C>        <C>           <C>          <C>              <C>
4677294      NEW YORK                      NY       10014       HCO         7.625         7.250        $1,635.01        360
5024407      HOUSTON                       TX       77055       SFD         7.250         6.983        $1,828.23        360
5027205      WEST BLOOMFIELD               MI       48323       SFD         7.000         6.733        $2,484.91        360
5049428      PASADENA                      CA       91105       SFD         7.250         6.983        $2,749.17        360
5049538      PEBBLE BEACH                  CA       93953       LCO         7.000         6.733        $7,067.79        300
5050064      COLORADO SPRINGS              CO       80906       SFD         6.750         6.483        $2,026.87        360
5062621      W LAFAYETTE                   IN       47906       SFD         8.250         7.250        $3,004.06        360
5085582      ATLANTA                       GA       30350       SFD         8.250         7.250        $6,062.52        347
5094709      PARK CITY                     UT       84098       SFD         8.625         7.250        $4,830.07        360
5095167      BIRMINGHAM                    AL       35213       SFD         7.125         6.858        $2,256.96        360
5119519      PETOSKEY                      MI       49770       SFD         8.250         7.250        $4,507.60        360
5119617      MALIBU                        CA       90265       SFD         8.125         7.250        $2,672.99        360
5119649      UPPER SADDLE RIVER            NJ       07458       SFD         7.750         7.250        $3,644.75        360
5119681      TEQUESTA                      FL       33469       SFD         7.500         7.233        $4,946.95        360
5119704      NEW LONDON                    CT       06320       SFD         8.250         7.250         $552.18         360
5119725      PAYSON                        AZ       85541       SFD         7.375         7.108        $2,514.05        360
5121732      ZIONSVILLE                    PA       18092       SFD         6.875         6.608        $2,161.30        360
5125686      PALM COAST                    FL       32164       SFD         8.500         7.250        $1,214.89        360
5125695      HENDERSON                     NV       89014       SFD         7.875         7.250         $899.09         360
5125713      BELLEMEAD                     NJ       08502       SFD         8.500         7.250        $2,263.68        360
5125731      WEST                          TX       76691       SFD         8.625         7.250         $194.45         360
5125739      BUTTE                         MT       59701       SFD         8.250         7.250         $661.11         360
5125767      WEST WINDSOR                  NJ       08540       LCO         8.625         7.250         $700.02         360
5125775      RANCHO PALOS VERDES           CA       90275       SFD         9.000         7.250        $2,446.05        360
5125782      CHICAGO                       IL       60649       SFD         8.000         7.250        $3,536.74        360
5125790      WRIGHT CITY                   MO       63390       SFD         8.125         7.250        $1,202.85        360
5125797      AUSTIN                        TX       78731       SFD         8.125         7.250        $2,548.26        360
5125807      AMHERST                       MA       01002       SFD         7.250         6.983        $1,296.14        360
5125834      LITTLETON                     CO       80122       SFD         8.125         7.250        $1,169.44        360
5125835      BEDFORD                       OH       44146       SFD         7.750         7.250         $597.48         360
5125847      MAGNOLIA                      TX       77362       SFD         8.250         7.250        $1,666.31        360
5125861      GROTON                        CT       06355       SFD         8.500         7.250        $2,368.26        360
5129215      WOODSTOCK                     GA       30188       SFD         8.625         7.250        $3,011.61        360
5135373      HOUSTON                       TX       77066       PUD         8.500         7.250         $384.46         360
5135968      BERKELEY SPRINGS              WV       25411       SFD         8.125         7.250         $690.53         360
5135983      LOUISVILLE                    KY       40223       SFD         8.500         7.250         $703.56         360
5136019      POCATELLO                     ID       83201       SFD         8.875         7.250         $632.54         360
5136077      POULSBO                       WA       98370       SFD         8.250         7.250         $375.64         360
5136081      ALPHARETTA                    GA       30004       PUD         8.500         7.250        $2,291.36        360
5136083      PENSACOLA                     FL       32514       SFD         8.500         7.250         $922.70         360
5136085      MONROE                        WA       98272       SFD         7.875         7.250         $974.50         360
5137794      CHARLESTON                    SC       29407       SFD         8.875         7.250        $1,947.74        360




NASCOR
NMI / 2000-01  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS

(continued)


(i)           (viii)           (ix)           (x)       (xi)           (xii)          (xiii)         (xv)         (xvI)
- -----       ----------    --------------     ------   ---------      ----------      --------    -----------   --------
                              CUT-OFF
MORTGAGE    SCHEDULED          DATE                                   MORTGAGE                      MASTER        FIXED
LOAN         MATURITY        PRINCIPAL                               INSURANCE       SERVICE       SERVICE       RETAIN
NUMBER         DATE           BALANCE         LTV      SUBSIDY          CODE           FEE           FEE          YIELD
- --------    ----------    --------------     ------   ---------      ----------      --------    -----------   --------
4677294      1-Nov-27      $ 226,289.36      75.00                                    0.250         0.017         0.108
5024407      1-Jan-29      $ 265,406.17      80.00                                    0.250         0.017         0.000
5027205      1-Mar-29      $ 370,356.78      87.68                       13           0.250         0.017         0.000
5049428      1-Mar-29      $ 399,769.35      93.72                                    0.250         0.017         0.000
5049538      1-Apr-24      $ 988,627.10      71.17                                    0.250         0.017         0.000
5050064      1-Aug-29      $ 311,139.50      74.58                                    0.250         0.017         0.000
5062621      1-Aug-29      $ 398,572.41      83.31                       12           0.250         0.017         0.733
5085582      1-Aug-28      $ 791,726.61      51.61                                    0.250         0.017         0.733
5094709      1-Nov-29      $ 619,923.02      79.62                                    0.250         0.017         1.108
5095167      1-Jul-29      $ 333,368.55      67.68                                    0.250         0.017         0.000
5119519      1-Sep-29      $ 598,453.74      100.00                                   0.250         0.017         0.733
5119617      1-Apr-29      $ 357,822.28      90.00                       17           0.250         0.017         0.608
5119649      1-Mar-29      $ 505,053.10      78.88                                    0.250         0.017         0.233
5119681      1-Mar-29      $ 702,099.08      67.38                                    0.250         0.017         0.000
5119704      1-Nov-26       $ 71,472.65      70.00                                    0.250         0.017         0.733
5119725      1-May-29      $ 361,736.02      94.55                                    0.250         0.017         0.000
5121732      1-Nov-29      $ 327,942.75      87.64                       11           0.250         0.017         0.000
5125686      1-Nov-29      $ 157,807.88      80.00                                    0.250         0.017         0.983
5125695      1-Oct-29      $ 123,742.30      80.00                                    0.250         0.017         0.358
5125713      1-Oct-29      $ 293,861.16      80.00                                    0.250         0.017         0.983
5125731      1-Sep-29       $ 24,940.31      26.04                                    0.250         0.017         1.108
5125739      1-Oct-29       $ 87,830.51      69.29                                    0.250         0.017         0.733
5125767      1-Oct-29       $ 89,839.42      85.71                                    0.250         0.017         1.108
5125775      1-Sep-29      $ 303,324.22      71.53                                    0.250         0.017         1.483
5125782      1-Oct-29      $ 481,023.30      88.44                                    0.250         0.017         0.483
5125790      1-Nov-29      $ 161,787.33      100.00                                   0.250         0.017         0.608
5125797      1-May-29      $ 341,187.29      80.00                                    0.250         0.017         0.608
5125807      1-Jun-29      $ 188,903.62      97.44                                    0.250         0.017         0.000
5125834      1-Jul-29      $ 156,871.25      100.00                                   0.250         0.017         0.608
5125835      1-Sep-29       $ 83,162.28      70.68                                    0.250         0.017         0.233
5125847      1-Aug-29      $ 221,083.04      75.19                                    0.250         0.017         0.733
5125861      1-Sep-29      $ 307,245.65      80.00                                    0.250         0.017         0.983
5129215      1-Nov-29      $ 386,741.14      80.00                                    0.250         0.017         1.108
5135373      1-Oct-29       $ 49,908.48      79.37                                    0.250         0.017         0.983
5135968      1-Nov-29       $ 92,877.91      70.45                                    0.250         0.017         0.608
5135983      1-Nov-29       $ 91,388.74      75.00                                    0.250         0.017         0.983
5136019      1-Nov-29       $ 79,410.53      75.00                                    0.250         0.017         1.358
5136077      1-Nov-29       $ 49,936.00      35.34                                    0.250         0.017         0.733
5136081      1-Oct-29      $ 297,454.58      80.00                                    0.250         0.017         0.983
5136083      1-Oct-29      $ 119,780.36      30.61                                    0.250         0.017         0.983
5136085      1-Sep-29      $ 134,026.34      80.00                                    0.250         0.017         0.358
5137794      1-Oct-29      $ 244,385.22      85.00                                    0.250         0.017         1.358

                              $12,198,277.33




</TABLE>

NASCOR
NMI / 2000-01  Exhibit F-3
30 YEAR FIXED RATE NON RELOCATION  LOANS


(i)         (xvii)                             (xviii)
- -----       -----------                        -----------

MORTGAGE                                       NMI
LOAN                                           LOAN
NUMBER      SERVICER                           SELLER
- --------    --------------------------------------------------------------------
4677294     CHASE MANHATTAN MORTGAGE C         CHASE MANHATTAN MORTGAGE C
5024407     BANK UNITED OF TEXAS               BANK UNITED OF TEXAS
5027205     HOMESIDE LENDING                   HOMESIDE LENDING
5049428     NOVUS FINANCIAL CORPORAT           NOVUS FINANCIAL CORPORAT
5049538     NOVUS FINANCIAL CORPORAT           NOVUS FINANCIAL CORPORAT
5050064     FIRSTAR                            FIRSTAR
5062621     HUNTINGTON MORTGAGE COMPAN         HUNTINGTON MORTGAGE COMPAN
5085582     HUNTINGTON MORTGAGE COMPAN         HUNTINGTON MORTGAGE COMPAN
5094709     AMERICA FIRST CREDIT UNION         AMERICA FIRST CREDIT UNION
5095167     SUNTRUST MORTGAGE, INC.            SUNTRUST MORTGAGE, INC.
5119519     MERRILL LYNCH CREDIT CORP          MERRILL LYNCH CREDIT CORP
5119617     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5119649     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5119681     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5119704     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5119725     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5121732     KEYSTONE FINANCIAL BANK FK         KEYSTONE FINANCIAL BANK FK
5125686     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125695     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125713     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125731     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125739     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125767     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125775     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125782     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125790     MERRILL LYNCH CREDIT CORP          MERRILL LYNCH CREDIT CORP
5125797     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125807     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125834     MERRILL LYNCH CREDIT CORP          MERRILL LYNCH CREDIT CORP
5125835     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125847     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5125861     MERRILL LYNCH CREDIT CORP.         MERRILL LYNCH CREDIT CORP.
5129215     KEYSTONE FINANCIAL BANK FK         KEYSTONE FINANCIAL BANK FK
5135373     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5135968     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5135983     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5136019     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5136077     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5136081     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5136083     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5136085     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES
5137794     FT MORTGAGE COMPANIES              FT MORTGAGE COMPANIES

COUNT:                                                   42
WAC:                                            7.897484679
WAM:                                            348.0231444
WALTV:                                          78.63146425



<PAGE>






                                    EXHIBIT G

                               REQUEST FOR RELEASE

                             (for Trustee/Custodian)

Loan Information
- ----------------

      Name of Mortgagor:                  ______________________________________

      Servicer
      Loan No.:                           ______________________________________

Custodian/Trustee
- -----------------

      Name:                               ______________________________________

      Address:                            ______________________________________

                                          ______________________________________

      Custodian/Trustee
      Mortgage File No.:                  ______________________________________

Seller
- ------

      Name:                               ______________________________________

      Address:                            ______________________________________

                                          ______________________________________

      Certificates:                       Mortgage Pass-Through Certificates,
                                          Series 2000-1

            The undersigned Master Servicer hereby acknowledges that it has
received from First Union National Bank, as Trustee for the Holders of Mortgage
Pass-Through Certificates, Series 2000-1, the documents referred to below (the
"Documents"). All capitalized terms not otherwise defined in this Request for
Release shall have the meanings given them in the Pooling and Servicing
Agreement dated as of January 28, 2000 (the "Pooling and Servicing Agreement")
among the Trustee, the Seller and the Master Servicer.

( )   Promissory Note dated ______________, 199__, in the original principal sum
      of $___________, made by ____________________, payable to, or endorsed to
      the order of, the Trustee.

( )   Mortgage recorded on _____________________ as instrument no.
      ______________ in the County Recorder's Office of the County of
      ____________________, State of _______________________ in book/reel/docket
      ____________________ of official records at page/image ____________.

( )   Deed of Trust recorded on ____________________ as instrument no.
      _________________ in the County Recorder's Office of the County of
      ___________________, State of _________________ in book/reel/docket
      ____________________ of official records at page/image ____________.

( )   Assignment of Mortgage or Deed of Trust to the Trustee, recorded on
      ______________________________ as instrument no. ______________ in the
      County Recorder's Office of the County of ______________________, State of
      _____________________ in book/reel/docket ____________________ of official
      records at page/image ____________.

( )   Other documents, including any amendments, assignments or other
      assumptions of the Mortgage Note or Mortgage.

      ( )   _____________________________________________

      ( )   _____________________________________________

      ( )   _____________________________________________

      ( )   _____________________________________________

      The undersigned Master Servicer hereby acknowledges and agrees as follows:

(1)   The Master Servicer shall hold and retain possession of the Documents in
      trust for the benefit of the Trustee, solely for the purposes provided in
      the Agreement.

(2)   The Master Servicer shall not cause or permit the Documents to become
      subject to, or encumbered by, any claim, liens, security interest,
      charges, writs of attachment or other impositions nor shall the Master
      Servicer assert or seek to assert any claims or rights of setoff to or
      against the Documents or any proceeds thereof.

(3)   The Master Servicer shall return the Documents to the Trustee when the
      need therefor no longer exists, unless the Mortgage Loan relating to the
      Documents has been liquidated and the proceeds thereof have been remitted
      to the Certificate Account and except as expressly provided in the
      Agreement.

(4)   The Documents and any proceeds thereof, including any proceeds of
      proceeds, coming into the possession or control of the Master Servicer
      shall at all times be earmarked for the account of the Trustee, and the
      Master Servicer shall keep the Documents and any proceeds separate and
      distinct from all other property in the Master Servicer's possession,
      custody or control.



                                       NORWEST BANK MINNESOTA, NATIONAL
                                          ASSOCIATION


                                       By:____________________________________
                                          Name:
                                          Title:

Date: ________________, 19__



<PAGE>






                                    EXHIBIT H

                                              AFFIDAVIT PURSUANT TO SECTION
                                              860E(e)(4) OF THE INTERNAL REVENUE
                                              CODE OF 1986, AS AMENDED, AND FOR
                                              NON-ERISA INVESTORS



STATE OF                )
                        )  ss.:
COUNTY OF               )


             [NAME OF OFFICER], being first duly sworn, deposes and says:

            1.    That he is [Title of Officer] of [Name of Purchaser] (the
"Purchaser"), a [description of type of entity] duly organized and existing
under the laws of the [State of ] [United States], on behalf of which he makes
this affidavit.

            2.    That the Purchaser's Taxpayer Identification Number is
[             ].

            3.    That the Purchaser is not a "disqualified organization" within
the meaning of Section 860E(e)(5),of the Internal Revenue Code of 1986, as
amended (the "Code"), or an ERISA Prohibited Holder, and will not be a
"disqualified organization" or an ERISA Prohibited Holder, as of [date of
transfer], and that the Purchaser is not acquiring Norwest Asset Securities
Corporation Mortgage Pass-Through Certificates, Series 2000-1, Class I-A-R
Certificate (the "Class I-A-R Certificate") for the account of, or as agent
(including a broker, nominee, or other middleman) for, any person or entity from
which it has not received an affidavit substantially in the form of this
affidavit. For these purposes, a "disqualified organization" means the United
States, any state or political subdivision thereof, any foreign government, any
international organization, any agency or instrumentality of any of the
foregoing (other than an instrumentality if all of its activities are subject to
tax and a majority of its board of directors is not selected by such
governmental entity), any cooperative organization furnishing electric energy or
providing telephone service to persons in rural areas as described in Code
Section 1381(a)(2)(C), or any organization (other than a farmers' cooperative
described in Code Section 521) that is exempt from taxation under the Code
unless such organization is subject to the tax on unrelated business income
imposed by Code Section 511. For these purposes, an "ERISA Prohibited Holder"
means an employee benefit plan or other retirement arrangement subject to Title
I of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
or Code Section 4975 or a governmental plan, as defined in Section 3(32) of
ERISA, subject to any federal, state or local law which is, to a material
extent, similar to the foregoing provisions of ERISA or the Code (collectively,
a "Plan") or a Person acting on behalf of or investing the assets of such a
Plan.

            4.    That the Purchaser historically has paid its debts as they
have come due and intends to pay its debts as they come due in the future and
the Purchaser intends to pay taxes associated with holding the Class I-A-R
Certificate as they become due.

            5.    That the Purchaser understands that it may incur tax
liabilities with respect to the Class I-A-R Certificate in excess of cash flows
generated by the Class I-A-R Certificate.

            6.    That the Purchaser will not transfer the Class I-A-R
Certificate to any person or entity from which the Purchaser has not received an
affidavit substantially in the form of this affidavit and as to which the
Purchaser has actual knowledge that the requirements set forth in paragraph 3, 4
or 7 hereof are not satisfied or that the Purchaser has reason to know does not
satisfy the requirements set forth in paragraph 4 hereof.

            7.    That the Purchaser (i) is a U.S. Person or (ii) is a person
other than a U.S. Person (a "Non-U.S. Person") that holds the Class I-A-R
Certificate in connection with the conduct of a trade or business within the
United States and has furnished the transferor and the Trustee with an effective
Internal Revenue Service Form 4224 or successor form at the time and in the
manner required by the Code or (iii) is a Non-U.S. Person that has delivered to
both the transferor and the Trustee an opinion of a nationally recognized tax
counsel to the effect that the transfer of the Class I-A-R Certificate to it is
in accordance with the requirements of the Code and the regulations promulgated
thereunder and that such transfer of the Class I-A-R Certificate will not be
disregarded for federal income tax purposes. "U.S. Person" means a citizen or
resident of the United States, a corporation or partnership (unless, in the case
of a partnership, Treasury regulations are adopted that provide otherwise)
created or organized in or under the laws of the United States, any state
thereof or the District of Columbia, including an entity treated as a
corporation or partnership for federal income tax purposes, an estate whose
income is subject to United States federal income tax regardless of its source,
or a trust if a court within the United States is able to exercise primary
supervision over the administration of such trust, and one or more such U.S.
Persons have the authority to control all substantial decisions of such trust
(or, to the extent provided in applicable Treasury regulations, certain trusts
in existence on August 20, 1996 which are eligible to elect to be treated as
U.S. Persons).

            8.    That the Purchaser agrees to such amendments of the Pooling
and Servicing Agreement as may be required to further effectuate the
restrictions on transfer of the Class I-A-R Certificate to such a "disqualified
organization," an agent thereof, an ERISA Prohibited Holder or a person that
does not satisfy the requirements of paragraph 4, paragraph 5 and paragraph 7
hereof.

            9.    That the Purchaser consents to the designation of the Master
Servicer as its agent to act as "tax matters person" of the REMIC pursuant to
Section 3.01 of the Pooling and Servicing Agreement, and if such designation is
not permitted by the Code and applicable law, to act as tax matters person if
requested to do so.


<PAGE>





            IN WITNESS WHEREOF, the Purchaser has caused this instrument to be
executed on its behalf, pursuant to authority of its Board of Directors, by its
[Title of Officer] this ___ day of , 19 __.

                                        [Name of Purchaser]



                                       By:____________________________________
                                          [Name of Officer]
                                          [Title of Officer]

            Personally appeared before me the above-named [Name of Officer],
known or proved to me to be the same person who executed the foregoing
instrument and to be the [Title of Officer], of the Purchaser, and acknowledged
to me that he [she] executed the same as his [her] free act and deed and the
free act and deed of the Purchaser.

            Subscribed and sworn before me this __ day of __________, 19 __.




____________________________________
Notary Public

COUNTY OF___________________________

STATE OF____________________________

My commission expires the __ day of __________, 19__.


<PAGE>





                                    EXHIBIT I

               [Letter from Transferor of Class I-A-R Certificate]




                                     [Date]

First Union National Bank
401 South Tryon Street
Charlotte, North Carolina 28202

         Re:   Norwest Asset Securities Corporation,
               Series 2000-1, Class I-A-R
               -------------------------------------

Ladies and Gentlemen:

            [Transferor] has reviewed the attached affidavit of [Transferee],
and has no actual knowledge that such affidavit is not true and has no reason to
know that the information contained in paragraph 4 thereof is not true.

                                                Very truly yours,
                                                [Transferor]



                                                ______________________


<PAGE>






                                    EXHIBIT J

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES

                                  SERIES 2000-1
               CLASS [I-A-PO][II-A-PO][B-4][B-5][B-6] CERTIFICATES

                               TRANSFEREE'S LETTER

                                                       ____________ ___, _______

First Union National Bank
401 South Tryon Street
Charlotte, North Carolina 28202

Norwest Asset Securities Corporation
7485 New Horizon Way

Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 2000-1, Class
[I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates (the "Class
[I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates") in the principal amount of
$___________. In doing so, the Purchaser hereby acknowledges and agrees as
follows:

            Section 1.  Definitions. Each capitalized term used herein and not
otherwise defined herein shall have the meaning ascribed to it in the Pooling
and Servicing Agreement, dated as of January 28, 2000 (the "Pooling and
Servicing Agreement") among Norwest Asset Securities Corporation, as seller (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee"), of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates, Series
2000-1.

            Section 2.  Representations and Warranties of the Purchaser. In
connection with the proposed transfer, the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trustee that:

            (a)  The Purchaser is duly organized, validly existing and in good
standing under the laws of the jurisdiction in which the Purchaser is organized,
is authorized to invest in the Class [I-A-PO][II-A-PO][B-4][B-5][B-6]
Certificates, and to enter into this Agreement, and duly executed and delivered
this Agreement.

            (b)  The Purchaser is acquiring the Class [I-A-PO][II-A-PO][B-4]
[B-5][B-6] Certificates for its own account as principal and not with a view to
the distribution thereof, in whole or in part.

            (c)  [The Purchaser has knowledge of financial and business matters
and is capable of evaluating the merits and risks of an investment in the Class
[I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates; the Purchaser has sought such
accounting, legal and tax advice as it has considered necessary to make an
informed investment decision; and the Purchaser is able to bear the economic
risk of an investment in the Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates
and can afford a complete loss of such investment.]

            [(c)  The Purchaser is a "Qualified Institutional Buyer" within the
meaning of Rule 144A of the Act.]

            (d) The Purchaser confirms that (a) it has received and reviewed a
copy of the Private Placement Memorandum dated __________ __, 19__, relating to
the Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates and reviewed, to the
extent it deemed appropriate, the documents attached thereto or incorporated by
reference therein, (b) it has had the opportunity to ask questions of, and
receive answers from the Seller concerning the Class
[I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates and all matters relating thereto,
and obtain any additional information (including documents) relevant to its
decision to purchase the Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates
that the Seller possesses or can possess without unreasonable effort or expense
and (c) it has undertaken its own independent analysis of the investment in the
Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates. The Purchaser will not use
or disclose any information it receives in connection with its purchase of the
Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates other than in connection
with a subsequent sale of Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates.


            (e) Either (i) the Purchaser is not an employee benefit plan or
other retirement arrangement subject to Title I of the Employee Retirement
Income Security Act of 1974, as amended, ("ERISA"), or Section 4975 of the
Internal Revenue Code of 1986, as amended (the "Code"), or a governmental plan,
as defined in Section 3(32) of ERISA subject to any federal, state or local law
("Similar Law") which is, to a material extent, similar to the foregoing
provisions of ERISA or the Code (collectively, a "Plan"), an agent acting on
behalf of a Plan, or a person utilizing the assets of a Plan or (ii) [for Class
[B-4][B-5][B-6] Certificates only] if the Purchaser is an insurance company, (A)
the source of funds used to purchase the Class [B-4][B-5][B-6] Certificate is an
"insurance company general account" (as such term is defined in Section V(e) of
Prohibited Transaction Class Exemption 95-60 ("PTE 95-60"), 60 Fed. Reg. 35925
(July 12, 1995), (B) there is no Plan with respect to which the amount of such
general account's reserves and liabilities for the contract(s) held by or on
behalf of such Plan and all other Plans maintained by the same employer (or
affiliate thereof as defined in Section V(a)(1) of PTE 95-60) or by the same
employee organization exceeds 10% of the total of all reserves and liabilities
of such general account (as such amounts are determined under Section I(a) of
PTE 95-60) at the date of acquisition and (C) the purchase and holding of such
Class [B-4][B-5][B-6] Certificates are covered by Sections I and III of PTE
95-60 or (iii) the Purchaser has provided (a) a "Benefit Plan Opinion"
satisfactory to the Seller and the Trustee of the Trust Estate and (b) such
other opinions of counsel, officers' certificates and agreements as the Seller
or the Master Servicer may have required. A Benefit Plan Opinion is an opinion
of counsel to the effect that the proposed transfer will not cause the assets of
the Trust Estate to be regarded as "plan assets" and subject to the prohibited
transaction provisions of ERISA, the Code or Similar Law and will not subject
the Trustee, the Seller or the Master Servicer to any obligation in addition to
those undertaken in the Pooling and Servicing Agreement (including any liability
for civil penalties or excise taxes imposed pursuant to ERISA, Section 4975 of
the Code or Similar Law).

            (f)  If the Purchaser is a depository institution subject to the
jurisdiction of the Office of the Comptroller of the Currency ("OCC"), the Board
of Governors of the Federal Reserve System ("FRB"), the Federal Deposit
Insurance Corporation ("FDIC"), the Office of Thrift Supervision ("OTS") or the
National Credit Union Administration ("NCUA"), the Purchaser has reviewed the
"Supervisory Policy Statement on Securities Activities" dated January 28, 1992
of the Federal Financial Institutions Examination Council and the April 15, 1994
Interim Revision thereto as adopted by the OCC, FRB, FDIC, OTS and NCUA (with
modifications as applicable), as appropriate, other applicable investment
authority, rules, supervisory policies and guidelines of these agencies and, to
the extent appropriate, state banking authorities and has concluded that its
purchase of the Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates is in
compliance therewith.

            Section 3.  Transfer of Class [I-A-PO][II-A-PO][B-4][B-5][B-6]
                        Certificates.

            (a) The Purchaser understands that the Class [I-A-PO][II-A-PO][B-4]
[B-5][B-6] Certificates have not been registered under the Securities Act of
1933 (the "Act") or any state securities laws and that no transfer may be made
unless the Class [I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates are registered
under the Act and applicable state law or unless an exemption from registration
is available. The Purchaser further understands that neither the Seller, the
Master Servicer nor the Trustee is under any obligation to register the Class
[I-A-PO][II-A-PO][B-4][B-5][B-6] Certificates or make an exemption available. In
the event that such a transfer is to be made in reliance upon an exemption from
the Act or applicable state securities laws, (i) the Trustee shall require, in
order to assure compliance with such laws, that the Certificateholder's
prospective transferee certify to the Trustee as to the factual basis for the
registration or qualification exemption relied upon, and (ii) unless the
transferee is a "Qualified Institutional Buyer" within the meaning of Rule 144A
of the Act, the Trustee or the Seller may, if such transfer is made within three
years from the later of (a) the Closing Date or (b) the last date on which the
Seller or any affiliate thereof was a holder of the Certificates proposed to be
transferred, require an Opinion of Counsel that such transfer may be made
pursuant to an exemption from the Act and state securities laws, which Opinion
of Counsel shall not be an expense of the Trustee, the Master Servicer or the
Seller. Any such Certificateholder desiring to effect such transfer shall, and
does hereby agree to, indemnify the Trustee, the Master Servicer, any Paying
Agent acting on behalf of the Trustee and the Seller against any liability that
may result if the transfer is not so exempt or is not made in accordance with
such federal and state laws.

            (b) No transfer of a Class [I-A-PO][II-A-PO][B-4][B-5][B-6]
Certificate shall be made unless the transferee provides the Seller and the
Trustee with a Transferee's Letter, substantially in the form of this Agreement.

            (c) The Purchaser acknowledges that its Class [I-A-PO][II-A-PO][B-4]
[B-5][B-6] Certificates bear a legend setting forth the applicable restrictions
on transfer.


<PAGE>





            IN WITNESS WHEREOF, the undersigned has caused this Agreement to be
validly executed by its duly authorized representative as of the day and the
year first above written.

                                       [PURCHASER]



                                       By:____________________________________



                                       Its:___________________________________



<PAGE>






                                    EXHIBIT K

                      NORWEST ASSET SECURITIES CORPORATION

                       MORTGAGE PASS-THROUGH CERTIFICATES

                                  SERIES 2000-1

                      CLASS [B-1] [B-2] [B-3] CERTIFICATES

                               TRANSFEREE'S LETTER
                               -------------------

                                                       ________________ __, ____

First Union National Bank
401 South Tryon Street
Charlotte, North Carolina 28202

Norwest Asset Securities Corporation
7485 New Horizon Way

Frederick, Maryland 21703

            The undersigned (the "Purchaser") proposes to purchase Norwest Asset
Securities Corporation Mortgage Pass-Through Certificates, Series 2000-1, Class
[B-1] [B-2] [B-3] Certificates (the "Class [B-1] [B-2] [B-3] Certificates") in
the principal amount of $___________. In doing so, the Purchaser hereby
acknowledges and agrees as follows:

            Section 1.  Definitions. Each capitalized term used herein and not
otherwise defined herein shall have the meaning ascribed to it in the Pooling
and Servicing Agreement, dated as of January 28, 2000 (the "Pooling and
Servicing Agreement") among Norwest Asset Securities Corporation, as seller (the
"Seller"), Norwest Bank Minnesota, National Association, as master servicer (the
"Master Servicer") and First Union National Bank, as trustee (the "Trustee") of
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates, Series
2000-1.

            Section 2.  Representations and Warranties of the Purchaser. In
connection with the proposed transfer, the Purchaser represents and warrants to
the Seller, the Master Servicer and the Trustee that:

            Either (i) the Purchaser is not an employee benefit plan or other
retirement arrangement subject to Title I of the Employee Retirement Income
Security Act of 1974, as amended, ("ERISA"), or Section 4975 of the Internal
Revenue Code of 1986, as amended (the "Code"), or a governmental plan, as
defined in Section 3(32) of ERISA subject to any federal, state or local law
("Similar Law") which is, to a material extent, similar to the foregoing
provisions of ERISA or the Code (collectively, a "Plan"), an agent acting on
behalf of a Plan, or a person utilizing the assets of a Plan or (ii) if the
Purchaser is an insurance company, (A) the source of funds used to purchase the
Class [B-1] [B-2] [B-3] Certificate is an "insurance company general account"
(as such term is defined in Section V(e) of Prohibited Transaction Class
Exemption 95-60 ("PTE 95-60"), 60 Fed. Reg. 35925 (July 12, 1995), (B) there is
no Plan with respect to which the amount of such general account's reserves and
liabilities for the contract(s) held by or on behalf of such Plan and all other
Plans maintained by the same employer (or affiliate thereof as defined in
Section V(a)(1) of PTE 95-60) or by the same employee organization, exceed 10%
of the total of all reserves and liabilities of such general account (as such
amounts are determined under Section I(a) of PTE 95-60) at the date of
acquisition and (C) the purchase and holding of such Class [B-1][B-2][B-3]
Certificate are covered by Sections I and III of PTE 95-60 or (iii) the
Purchaser has provided (a) a "Benefit Plan Opinion" satisfactory to the Seller
and the Trustee of the Trust Estate and (b) such other opinions of counsel,
officers' certificates and agreements as the Seller or the Master Servicer may
have required. A Benefit Plan Opinion is an opinion of counsel to the effect
that the proposed transfer will not cause the assets of the Trust Estate to be
regarded as "plan assets" and subject to the prohibited transaction provisions
of ERISA, the Code or Similar Law and will not subject the Trustee, the Seller
or the Master Servicer to any obligation in addition to those undertaken in the
Pooling and Servicing Agreement (including any liability for civil penalties or
excise taxes imposed pursuant to ERISA, Section 4975 of the Code or Similar
Law).

            IN WITNESS WHEREOF, the undersigned has caused this Agreement to be
validly executed by its duly authorized representative as of the day and the
year first above written.

                                       [PURCHASER]



                                       By:____________________________________



                                       Its:___________________________________



                                       [Reserved]


<PAGE>





                                    EXHIBIT L

                              SERVICING AGREEMENTS

                   Norwest Mortgage, Inc. Servicing Agreement

                 American First Credit Union Servicing Agreement

                      HomeSide Lending Servicing Agreement

                 NOVUS Financial Corporation Servicing Agreement

                    FT Mortgage Companies Servicing Agreement

                   Keystone Financial Bank Servicing Agreement

              Merrill Lynch Credit Corporation Servicing Agreement

                   SunTrust Mortgage, Inc. Servicing Agreement

               The Huntington Mortgage Company Servicing Agreement

                      Firstar Bank, NA Servicing Agreement

                         Bank United Servicing Agreement

            Chase Manhattan Mortgage Corporation Servicing Agreement


<PAGE>




                                    EXHIBIT M

                      [FORM OF SPECIAL SERVICING AGREEMENT]

                 SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT
                 -----------------------------------------------

            This SPECIAL SERVICING AND COLLATERAL FUND AGREEMENT (the
"Agreement") is made and entered int, between Norwest Bank Minnesota, National
Association (the "Company" and "Norwest Bank") and (the "Purchaser").

                              PRELIMINARY STATEMENT

            ________________________ is the holder of the entire interest in
Norwest Asset Securities Corporation Mortgage Pass-Through Certificates, Series
2000-1, Class ____ (the "Class B Certificates"). The Class B Certificates were
issued pursuant to a Pooling and Servicing Agreement dated as of January 28,
2000 among Norwest Asset Securities Corporation, as seller (the "Seller"),
Norwest Bank Minnesota, National Association, as Master Servicer and First Union
National Bank, as Trustee.

            ________________________ intends to resell all of the Class B
Certificates directly to the Purchaser on or promptly after the date hereof.

            In connection with such sale, the parties hereto have agreed that
the Company will cause, to the extent that the Company as Master Servicer is
granted such authority in the related Servicing Agreements, the related
servicers (each a related "Servicer"), which service the Mortgage Loans which
comprise the Trust Estate related to the above referenced series under the
related servicing agreements (each a related "Servicing Agreement"), to engage
in certain special servicing procedures relating to foreclosures for the benefit
of the Purchaser, and that the Purchaser will deposit funds in a collateral fund
to cover any losses attributable to such procedures as well as all advances and
costs in connection therewith, as set forth herein.

            In consideration of the mutual agreements herein contained, the
receipt and sufficiency of which are hereby acknowledged, the Company and the
Purchaser agree that the following provisions shall become effective and shall
be binding on and enforceable by the Company and the Purchaser:

                                    ARTICLE I

                                   DEFINITIONS

            Section 1.01      Defined Terms

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

            Business Day: Any day other than (i) a Saturday or a Sunday or (ii)
a day on which banking institutions in the State of New York are required or
authorized by law or executive order to be closed.

            Collateral Fund:  The fund established and maintained pursuant to
Section 3.01 hereof.

            Collateral Fund Permitted Investments: Either (i) obligations of, or
obligations fully guaranteed as to 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) a money market fund
rated in the highest rating category by a nationally recognized rating agency
selected by the Company, (iii) cash, (iv) mortgage pass-through certificates
issued or guaranteed by Government National Mortgage Association, FNMA or FHLMC,
(v) commercial paper (including both non-interest-bearing discount obligations
and interest-bearing obligations payable on demand or on a specified date), the
issuer of which may be an affiliate of the Company, having at the time of such
investment a rating of at least P-1 by Moody's Investors Service, Inc.
("Moody's") or at least F-1 by Fitch IBCA, Inc. ("Fitch") or (vi) demand and
time deposits in, certificates of deposit of, any depository institution or
trust company (which may be an affiliate of the Company) incorporated under the
laws of the United States of America or any state thereof and subject to
supervision and examination by federal and/or state banking authorities, so long
as at the time of such investment either (x) the long-term debt obligations of
such depository institution or trust company have a rating of at least AA by
Fitch or Aa2 by Moody's, (y) the certificate of deposit or other unsecured
short-term debt obligations of such depository institution or trust company have
a rating of at least P-1 by Moody's or F-1 by Fitch or (z) the depository
institution or trust company is one that is acceptable to either Moody's or
Fitch and, for each of the preceding clauses (i), (iv), (v) and (vi), the
maturity thereof shall be not later than the earlier to occur of (A) 30 days
from the date of the related investment and (B) the next succeeding Distribution
Date as defined in the related Pooling and Servicing Agreement.

            Commencement of Foreclosure:  The first official action required
under local law in order to commence foreclosure proceedings or to schedule a
trustee's sale under a deed of trust, including (i) in the case of a mortgage,
any filing or service of process necessary to commence an action to foreclose,
or (ii) in the case of a deed of trust, posting, the publishing, filing or
delivery of a notice of sale, but not including in either case (x) any notice of
default, notice of intent to foreclose or sell or any other action prerequisite
to the actions specified in (i) or (ii) above, (y) the acceptance of a
deed-in-lieu of foreclosure (whether in connection with a sale of the related
property or otherwise) or (z) initiation and completion of a short pay-off.

            Current Appraisal: With respect to any Mortgage Loan as to which the
Purchaser has made an Election to Delay Foreclosure, an appraisal of the related
Mortgaged Property obtained by the Purchaser at its own expense from an
independent appraiser (which shall not be an affiliate of the Purchaser)
acceptable to the Company as nearly contemporaneously as practicable to the time
of the Purchaser's election, prepared based on the Company's customary
requirements for such appraisals.

            Election to Delay Foreclosure:  Any  election by the  Purchaser  to
delay the Commencement of Foreclosure, made in accordance with Section 2.02(b).

            Election to Foreclose: Any election by the Purchaser to proceed with
the Commencement of Foreclosure, made in accordance with Section 2.03(a).

            Monthly Advances: Principal and interest advances and servicing
advances including costs and expenses of foreclosure.

            Required Collateral Fund Balance: As of any date of determination,
an amount equal to the aggregate of all amounts previously required to be
deposited in the Collateral Fund pursuant to Section 2.02(d) (after adjustment
for all withdrawals and deposits pursuant to Section 2.02(e)) and Section
2.03(b) (after adjustment for all withdrawals and deposits pursuant to Section
2.03(c)) and Section 3.02 to be reduced by all withdrawals therefrom pursuant to
Section 2.02(g) and Section 2.03(d).

            Section 1.02      Definitions Incorporated by Reference

            All capitalized terms not otherwise defined in this Agreement shall
have the meanings assigned in the Pooling and Servicing Agreement.


                                   ARTICLE II

                          SPECIAL SERVICING PROCEDURES

            Section 2.01      Reports and Notices

            (a)   In connection with the performance of its duties under the
Pooling and Servicing Agreement relating to the realization upon defaulted
Mortgage Loans, the Company as Master Servicer shall provide to the Purchaser
the following notices and reports:

            (i)   Within five Business Days after each Distribution Date (or
      included in or with the monthly statements to Certificateholders pursuant
      to the Pooling and Servicing Agreement), the Company, shall provide to the
      Purchaser a report, using the same methodology and calculations in its
      standard servicing reports, indicating for the Trust Estate the number of
      Mortgage Loans that are (A) thirty days, (B) sixty days, (C) ninety days
      or more delinquent or (D) in foreclosure, and indicating for each such
      Mortgage Loan the loan number and outstanding principal balance.

            (ii) Prior to the Commencement of Foreclosure in connection with any
      Mortgage Loan, the Company shall cause (to the extent that the Company as
      Master Servicer is granted such authority in the related Servicing
      Agreement) the Servicer to provide the Purchaser with a notice (sent by
      telecopier) of such proposed and imminent foreclosure, stating the loan
      number and the aggregate amount owing under the Mortgage Loan. Such notice
      may be provided to the Purchaser in the form of a copy of a referral
      letter from such Servicer to an attorney requesting the institution of
      foreclosure.

            (b)  If requested by the Purchaser, the Company shall cause the
Servicer (to the extent that the Company as Master Servicer is granted such
authority in the related Servicing Agreement) to make its servicing personnel
available (during their normal business hours) to respond to reasonable
inquiries, by phone or in writing by facsimile, electronic, or overnight mail
transmission, by the Purchaser in connection with any Mortgage Loan identified
in a report under subsection (a) (i) (B), (a) (i) (C), (a) (i) (D), or (a) (ii)
which has been given to the Purchaser; provided, that (1) the related Servicer
shall only be required to provide information that is readily accessible to its
servicing personnel and is non-confidential and (2) the related Servicer shall
respond within five Business Days orally or in writing by facsimile
transmission.

            (c)  In addition to the foregoing, the Company shall cause the
Servicer (to the extent that the Company as Master Servicer is granted such
authority in the related Servicing Agreement) to provide to the Purchaser such
information as the Purchaser may reasonably request provided, however, that such
information is consistent with normal reporting practices, concerning each
Mortgage Loan that is at least ninety days delinquent and each Mortgage Loan
which has become real estate owned, through the final liquidation thereof;
provided, that the related Servicer shall only be required to provide
information that is readily accessible to its servicing personnel and is
non-confidential provided, however, that the Purchaser will reimburse the
Company and the related Servicer for any out of pocket expenses.

            Section 2.02   Purchaser's Election to Delay Foreclosure Proceedings

            (a)  The Purchaser shall be deemed to direct the Company to direct
(to the extent that the Company as Master Servicer is granted such authority in
the related Servicing Agreement) the related Servicer that in the event that the
Company does not receive written notice of the Purchaser's election pursuant to
subsection (b) below within 24 hours (exclusive of any intervening non-Business
Days) of transmission of the notice provided by the Company under Section 2.01
(a) (ii) subject to extension as set forth in Section 2.02(b), the related
Servicer may proceed with the Commencement of Foreclosure in respect of such
Mortgage Loan in accordance with its normal foreclosure policies without further
notice to the Purchaser. Any foreclosure that has been initiated may be
discontinued (i) without notice to the Purchaser if the Mortgage Loan has been
brought current or if a refinancing or prepayment occurs with respect to the
Mortgage Loan (including by means of a short payoff approved by the related
Servicer) or (ii) if the related Servicer has reached the terms of a forbearance
agreement with the borrower. In the latter case, the related Servicer may
complete such forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days notification.

            (b)  In connection with any Mortgage Loan with respect to which a
notice under Section 2.01(a)(ii) has been given to the Purchaser, the Purchaser
may elect to instruct the Company to cause, to the extent that the Company as
Master Servicer is granted such authority in the related Servicing Agreement,
the related Servicer to delay the Commencement of Foreclosure until such time as
the Purchaser determines that the related Servicer may proceed with the
Commencement of Foreclosure. Such election must be evidenced by written notice
received within 24 hours (exclusive of any intervening non-Business Days) of
transmission of the notice provided by the Company under Section 2.01(a)(ii).
Such 24 hour period shall be extended for no longer than an additional four
Business Days after the receipt of the information if the Purchaser requests
additional information related to such foreclosure; provided, however, that the
Purchaser will have at least one Business Day to respond to any requested
additional information. Any such additional information shall be provided only
to the extent it (i) is not confidential in nature and (ii) is obtainable by the
related Servicer from existing reports, certificates or statements or is
otherwise readily accessible to its servicing personnel. The Purchaser agrees
that it has no right to deal with the mortgagor during such period. However, if
such servicing activities include acceptance of a deed-in-lieu of foreclosure or
short payoff, the Purchaser will be notified and given two Business Days to
respond.

            (c) With respect to any Mortgage Loan as to which the Purchaser has
made an Election to Delay Foreclosure, the Purchaser shall obtain a Current
Appraisal as soon as practicable, but in no event more than 15 business days
thereafter, and shall provide the Company with a copy of such Current Appraisal.

            (d)  Within two Business Days of making any Election to Delay
Foreclosure, the Purchaser shall remit by wire transfer to the Company, for
deposit in the Collateral Fund, an amount, as calculated by the Company, equal
to the sum of (i) 125% of the greater of the unpaid principal balance of the
Mortgage Loan and the value shown in the Current Appraisal referred to in
subsection (c) above (or, if such Current Appraisal has not yet been obtained,
the Company's estimate thereof, in which case the required deposit under this
subsection shall be adjusted upon obtaining such Current Appraisal), and (ii)
three months' interest on the Mortgage Loan at the applicable Mortgage Interest
Rate. If any Election to Delay Foreclosure extends for a period in excess of
three months (such excess period being referred to herein as the "Excess
Period"), within two Business Days the Purchaser shall remit by wire transfer in
advance to the Company for deposit in the Collateral Fund the amount of each
additional month's interest, as calculated by the Company, equal to interest on
the Mortgage Loan at the applicable Mortgage Interest Rate for the Excess
Period. The terms of this Agreement will no longer apply to the servicing of any
Mortgage Loan upon the failure of the Purchaser to deposit any of the above
amounts relating to the Mortgage Loan within two Business Days of the Election
to Delay Foreclosure or within two Business Days of the commencement of the
Excess Period subject to Section 3.01.

            (e)  With respect to any Mortgage Loan as to which the Purchaser has
made an Election to Delay Foreclosure, the Company may withdraw from the
Collateral Fund from time to time amounts necessary to reimburse the related
Servicer for all related Monthly Advances and Liquidation Expenses thereafter
made by such Servicer in accordance with the Pooling and Servicing Agreement and
the related Servicing Agreement. To the extent that the amount of any such
Liquidation Expenses is determined by the Company based on estimated costs, and
the actual costs are subsequently determined to be higher, the Company may
withdraw the additional amount from the Collateral Fund. In the event that the
Mortgage Loan is brought current by the mortgagor and the foreclosure action is
discontinued, the amounts so withdrawn from the Collateral Fund shall be
redeposited if and to the extent that reimbursement therefor from amounts paid
by the mortgagor is not prohibited pursuant to the Pooling and Servicing
Agreement or the related Servicing Agreement, applicable law or the related
mortgage note. Except as provided in the preceding sentence, amounts withdrawn
from the Collateral Fund to cover Monthly Advances and Liquidation Expenses
shall not be redeposited therein or otherwise reimbursed to the Purchaser. If
and when any such Mortgage Loan is brought current by the mortgagor, all amounts
remaining in the Collateral Fund in respect of such Mortgage Loan (after
adjustment for all permitted withdrawals and deposits pursuant to this
subsection) shall be released to the Purchaser.

            (f)  With respect to any Mortgage Loan as to which the Purchaser has
made an Election to Delay Foreclosure, the related Servicer shall continue to
service the Mortgage Loan in accordance with its customary procedures (other
than the delay in Commencement of Foreclosure as provided herein). If and when
the Purchaser shall notify the Company that it believes that it is appropriate
to do so, the related Servicer may proceed with the Commencement of Foreclosure.
In any event, if the Mortgage Loan is not brought current by the mortgagor by
the time the loan becomes 6 months delinquent, the Purchaser's election shall no
longer be effective and at the Purchaser's option, either (i) the Purchaser
shall purchase the Mortgage Loan from the related Trust Estate at a purchase
price equal to the fair market value as shown on the Current Appraisal, to be
paid by (x) applying any balance in the Collateral Fund to such to such purchase
price, and (y) to the extent of any deficiency, by wire transfer of immediately
available funds from the Purchaser to the Company for deposit in the related
Certificate Account; or (ii) the related Servicer shall proceed with the
Commencement of Foreclosure.

            (g)  Upon the occurrence of a liquidation with respect to any
Mortgage Loan as to which the Purchaser made an Election to Delay Foreclosure
and as to which the related Servicer proceeded with the Commencement of
Foreclosure in accordance with subsection (f) above, the Company shall calculate
the amount, if any, by which the value shown on the Current Appraisal obtained
under subsection (c) exceeds the actual sales price obtained for the related
Mortgaged Property (net of Liquidation Expenses and accrued interest related to
the extended foreclosure period), and the Company shall withdraw the amount of
such excess from the Collateral Fund, shall remit the same to the Trust Estate
and in its capacity as Master Servicer shall apply such amount as additional
Liquidation Proceeds pursuant to the Pooling and Servicing Agreement. After
making such withdrawal, all amounts remaining in the Collateral Fund in respect
of such Mortgage Loan (after adjustment for all permitted withdrawals and
deposits pursuant to this Agreement) shall be released to the Purchaser.

            Section 2.03   Purchaser's Election to Commence Foreclosure
                           Proceedings

            (a)  In connection with any Mortgage Loan identified in a report
under Section 2.01(a)(i)(B), the Purchaser may elect to instruct the Company to
cause, to the extent that the Company as Master Servicer is granted such
authority in the related Servicing Agreement, the related Servicer to proceed
with the Commencement of Foreclosure as soon as practicable. Such election must
be evidenced by written notice received by the Company by 5:00 p.m., New York
City time, on the third Business Day following the delivery of such report under
Section 2.01(a)(i).

            (b)  Within two Business Days of making any Election to Foreclose,
the Purchaser shall remit to the Company, for deposit in the Collateral Fund, an
amount, as calculated by the Company, equal to 125% of the current unpaid
principal balance of the Mortgage Loan and three months interest on the Mortgage
Loan at the applicable Mortgage Interest Rate. If and when any such Mortgage
Loan is brought current by the mortgagor, all amounts in the Collateral Fund in
respect of such Mortgage Loan (after adjustment for all permitted withdrawals
and deposits pursuant to this Agreement) shall be released to the Purchaser if
and to the extent that reimbursement therefor from amounts paid by the mortgagor
is not prohibited pursuant to the Pooling and Servicing Agreement or the related
Servicing Agreement, applicable law or the related mortgage note. The terms of
this Agreement will no longer apply to the servicing of any Mortgage Loan upon
the failure of the Purchaser to deposit the above amounts relating to the
Mortgage Loan within two Business Days of the Election to Foreclose subject to
Section 3.01.

            (c)  With respect to any Mortgage Loan as to which the Purchaser has
made an Election to Foreclose, the related Servicer shall continue to service
the Mortgage Loan in accordance with its customary procedures (other than
Commencement of Foreclosure as provided herein). In connection therewith, the
Company shall have the same rights to make withdrawals for Monthly Advances and
Liquidations Expenses from the Collateral Fund as are provided under Section
2.02(e), and the Company shall make reimbursements thereto to the limited extent
provided under such subsection in accordance with its customary procedures. The
Company shall not be required to cause, to the extent that the Company as Master
Servicer is granted such authority in the related Servicing Agreement, the
related Servicer to proceed with the Commencement of Foreclosure if (i) the same
is stayed as a result of the mortgagor's bankruptcy or is otherwise barred by
applicable law, or to the extent that all legal conditions precedent thereto
have not yet been complied with, or (ii) the Company believes there is a breach
of representations or warranties by the Company, a Servicer, or a Seller, which
may result in a repurchase or substitution of such Mortgage Loan, or (iii) the
Company or related Servicer reasonably believes the Mortgaged Property may be
contaminated with or affected by hazardous wastes or hazardous substances (and,
without limiting the related Servicer's right not to proceed with the
Commencement of Foreclosure, the Company supplies the Purchaser with information
supporting such belief). Any foreclosure that has been initiated may be
discontinued (x) without notice to the Purchaser if the Mortgage Loan has been
brought current or if a refinancing or prepayment occurs with respect to the
Mortgage Loan (including by means of a short payoff approved by the Purchaser)
or (y) with notice to the Purchaser if the related Servicer has reached the
terms of a forbearance agreement unless instructed otherwise by the Purchaser
within two Business Days of such notification. Any such instruction shall be
based upon a decision that such forbearance agreement is not in conformity with
reasonable servicing practices.

            (d)  Upon the occurrence of a liquidation with respect to any
Mortgage Loan as to which the Purchaser made an Election to Foreclose and as to
which the related Servicer proceeded with the Commencement of Foreclosure in
accordance with subsection (c) above, the Company shall calculate the amount, if
any, by which the unpaid principal balance of the Mortgage Loan at the time of
liquidation (plus all unreimbursed interest and servicing advances and
Liquidation Expenses in connection therewith other than those paid from the
Collateral Fund) exceeds the actual sales price obtained for the related
Mortgaged Property, and the Company shall withdraw the amount of such excess
from the Collateral Fund, shall remit the same to the Trust Estate and in its
capacity as Master Servicer shall apply such amount as additional Liquidation
Proceeds pursuant to the Pooling and Servicing Agreement. After making such
withdrawal, all amounts remaining in the Collateral Fund (after adjustment for
all withdrawals and deposits pursuant to subsection (c) in respect of such
Mortgage Loan shall be released to the Purchaser.

            Section 2.04      Termination

            (a) With respect to all Mortgage Loans included in the Trust Estate,
the Purchaser's right to make any Election to Delay Foreclosure or any Election
to Foreclose and the Company's obligations under Section 2.01 shall terminate
(i) at such time as the Principal Balance of the Class B Certificates has been
reduced to zero, (ii) if the greater of (x) 43% (or such lower or higher
percentage that represents the related Servicer's actual historical loss
experience with respect to the Mortgage Loans in the related pool as determined
by the Company) of the aggregate principal balance of all Mortgage Loans that
are in foreclosure or are more than 90 days delinquent on a contractual basis
and REO properties or (y) the aggregate amount that the Company estimates
through the normal servicing practices of the related Servicer will be required
to be withdrawn from the Collateral Fund with respect to Mortgage Loans as to
which the Purchaser has made an Election to Delay Foreclosure or an Election to
Foreclosure, exceeds (z) the then-current principal balance of the Class B
Certificates, (iii) upon any transfer by the Purchaser of any interest (other
than the minority interest therein, but only if the transferee provides written
acknowledgment to the Company of the Purchaser's right hereunder and that such
transferee will have no rights hereunder) in the Class B Certificates (whether
or not such transfer is registered under the Pooling and Servicing Agreement),
including any such transfer in connection with a termination of the Trust Estate
or (iv) upon any breach of the terms of this Agreement by the Purchaser.

            (b)  Except as set forth in 2.04(a), this Agreement and the
respective rights, obligations and responsibilities of the Purchaser and the
Company hereunder shall terminate upon the later to occur of (i) the final
liquidation of the last Mortgage Loan as to which the Purchaser made any
Election to Delay Foreclosure or any Election to Foreclose and the withdrawal of
all remaining amounts in the Collateral Fund as provided herein and (ii) ten
Business Days' notice. The Purchaser's right to make an election pursuant to
Section 2.02 or Section 2.03 hereof with respect to a particular Mortgage Loan
shall terminate if the Purchaser fails to make any deposit required pursuant to
Section 2.02(d) or 2.03(b) or if the Purchaser fails to make any other deposit
to the Collateral Fund pursuant to this Agreement.


                                   ARTICLE III

                       COLLATERAL FUND; SECURITY INTEREST

            Section 3.01    Collateral Fund

            Upon receipt from the Purchaser of the initial amount required to be
deposited in the Collateral Fund pursuant to Article II, the Company shall
establish and maintain with Bankers Trust Company as a segregated account on its
books and records an account (the "Collateral Fund"), entitled "Norwest Bank
Minnesota, National Association, as Master Servicer, for the benefit of
registered holders of Norwest Asset Securities Corporation Mortgage Pass-Through
Certificates, Series 2000-1. Amounts held in the Collateral Fund shall continue
to be the property of the Purchaser, subject to the first priority security
interest granted hereunder for the benefit of the Certificateholders, until
withdrawn from the Collateral Fund pursuant to Section 2.02 or 2.03 hereof. The
Collateral Fund shall be an "outside reserve fund" within the meaning of the
REMIC Provisions, beneficially owned by the Purchaser for federal income tax
purposes. All income, gain, deduction or loss with respect to the Collateral
Fund shall be that of the Purchaser. All distributions from the Trust Fund to
the Collateral Fund shall be treated as distributed to the Purchaser as the
beneficial owner thereof.

            Upon the termination of this Agreement and the liquidation of all
Mortgage Loans as to which the Purchaser has made any Election to Delay
Foreclosure or any Election to Foreclose pursuant to Section 2.04 hereof, the
Company shall distribute or cause to be distributed to the Purchaser all amounts
remaining in the Collateral Fund (after adjustment for all deposits and
permitted withdrawals pursuant to this Agreement) together with any investment
earnings thereon. In the event the Purchaser has made any Election to Delay
Foreclosure or any Election to Foreclose, prior to any distribution to the
Purchaser of all amounts remaining in the Collateral Fund, funds in the
Collateral Fund shall be applied consistent with the terms of this Agreement.

            Section 3.02    Collateral Fund Permitted Investments

            The Company shall, at the written direction of the Purchaser, invest
the funds in the Collateral Fund in Collateral Fund Permitted Investments. Such
direction shall not be changed more frequently than quarterly. In the absence of
any direction, the Company shall select such investments in accordance with the
definition of Collateral Fund Permitted Investments in its discretion.

            All income and gain realized from any investment as well as any
interest earned on deposits in the Collateral Fund (net of any losses on such
investments) and any payments of principal made in respect of any Collateral
Fund Permitted Investment shall be deposited in the Collateral Fund upon
receipt. All costs and realized losses associated with the purchase and sale of
Collateral Fund Permitted Investments shall be borne by the Purchaser and the
amount of net realized losses shall be deposited by the Purchaser in the
Collateral Fund promptly upon realization. The Company shall periodically (but
not more frequently than monthly) distribute to the Purchaser upon request an
amount of cash, to the extent cash is available therefore in the Collateral
Fund, equal to the amount by which the balance of the Collateral Fund, after
giving effect to all other distributions to be made from the Collateral Fund on
such date, exceeds the Required Collateral Fund Balance. Any amounts so
distributed shall be released from the lien and security interest of this
Agreement.

            Section 3.03    Grant of Security Interest

            The Purchaser hereby grants to the Company for the benefit of the
Certificateholders under the Pooling and Servicing Agreement a security interest
in and lien on all of the Purchaser's right, title and interest, whether now
owned or hereafter acquired, in and to: (1) the Collateral Fund, (2) all amounts
deposited in the Collateral Fund and Collateral Fund Permitted Investments in
which such amounts are invested (and the distributions and proceeds of such
investments) and (3) all cash and non-cash proceeds of any of the foregoing,
including proceeds of the voluntary conversion thereof (all of the foregoing
collectively, the "Collateral").

            The Purchaser acknowledges the lien on and the security interest in
the Collateral for the benefit of the Certificateholders. The Purchaser shall
take all actions requested by the Company as may be reasonably necessary to
perfect the security interest created under this Agreement in the Collateral and
cause it to be prior to all other security interests and liens, including the
execution and delivery to the Company for filing of appropriate financing
statements in accordance with applicable law. The Company shall file appropriate
continuation statements, or appoint an agent on its behalf to file such
statements, in accordance with applicable law.

            Section 3.04    Collateral Shortfalls

            In the event that amounts on deposit in the Collateral Fund at any
time are insufficient to cover any withdrawals therefrom that the Company is
then entitled to make hereunder, the Purchaser shall be obligated to pay such
amounts to the Company immediately upon demand. Such obligation shall constitute
a general corporate obligation of the Purchaser. The failure to pay such amounts
within two Business Days of such demand (except for amounts to cover interest on
a Mortgage Loan pursuant to Sections 2.02(d) and 2.03 (b)), shall cause an
immediate termination of the Purchaser's right to make any Election to Delay
Foreclosure or Election to Foreclose and the Company's obligations under this
Agreement with respect to all Mortgage Loans to which such insufficiencies
relate, without the necessity of any further notice or demand on the part of the
Company.


                                   ARTICLE IV

                            MISCELLANEOUS PROVISIONS

            Section 4.01    Amendment

            This Agreement may be amended from time to time by the Company and
the Purchaser by written agreement signed by the Company and the Purchaser.

            Section 4.02    Counterparts

            This Agreement may be executed simultaneously in any number of
counterparts, each of which counterparts shall be deemed to be an original, and
such counterparts shall constitute but one and the same instrument.

            Section 4.03    Governing Law

            This Agreement shall be construed in accordance with the laws of the
State of New York and the obligations, rights and remedies of the parties
hereunder shall be determined in accordance with such laws.

            Section 4.04    Notices

            All demands, notices and direction hereunder shall be in writing or
by telecopy and shall be deemed effective upon receipt to:

            (a)   in the case of the Company,

                  Norwest Bank Minnesota, National Association
                  7485 New Horizon Way
                  Frederick, MD 21703

                  Attention:  Vice President, Master Servicing
                  Phone:      301-696-7800
                  Fax:        301-815-6365

            (b)   in the case of the Purchaser,

                  ________________________________
                  ________________________________
                  ________________________________
                  Attention: _____________________

            Section 4.05    Severability of Provisions

            If any one or more of the covenants, agreements, provision or terms
of this Agreement shall be for any reason whatsoever, including regulatory, held
invalid, then such covenants, agreements, provisions or terms of this Agreement
and shall in no way affect the validity or enforceability of the other
provisions of this Agreement.

            Section 4.06    Successors and Assigns

            The provisions of this Agreement shall be binding upon and inure to
the benefit of the respective successors and assigns of the parties hereto, and
all such provisions shall inure to the benefit of the Certificateholders;
provided, however, that the rights under this Agreement cannot be assigned by
the Purchaser without the consent of the Company.

            Section 4.07    Article and Section Headings

            The article and section headings herein are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

            Section 4.08    Confidentiality

            The Purchaser agrees that all information supplied by or on behalf
of the Company pursuant to Sections 2.01 or 2.02, including individual account
information, is the property of the Company and the Purchaser agrees to hold
such information confidential and not to disclose such information.

            Each party hereto agrees that neither it, nor any officer, director,
employee, affiliate or independent contractor acting at such party's direction
will disclose the terms of Section 4.09 of this Agreement to any person or
entity other than such party's legal counsel except pursuant to a final,
non-appealable order of court, the pendency of such order the other party will
have received notice of at least five business days prior to the date thereof,
or pursuant to the other party's prior express written consent.

            Section 4.09    Indemnification

            The Purchaser agrees to indemnify and hold harmless the Company, the
Seller, and each Servicer and each person who controls the Company, the Seller,
or a Servicer and each of their respective officers, directors, affiliates and
agents acting at the Company's, the Seller's, or a Servicer's direction (the
"Indemnified Parties") against any and all losses, claims, damages or
liabilities to which they may be subject, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of, or are
based upon, actions taken by, or actions not taken by, the Company, the Seller,
or a Servicer, or on their behalf, in accordance with the provisions of this
Agreement and (i) which actions conflict with the Company's, the Seller's, or a
Servicer's obligations under the Pooling and Servicing Agreement or the related
Servicing Agreement, or (ii) give rise to securities law liability under federal
or state securities laws with respect to the Certificates. The Purchaser hereby
agrees to reimburse the Indemnified Parties for the reasonable legal or other
expenses incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action. The indemnification obligations of the
Purchaser hereunder shall survive the termination or expiration of this
Agreement.


<PAGE>





            IN WITNESS WHEREOF, the Company and the Purchaser have caused their
names to be signed hereto by their respective officers thereunto duly
authorized, all as of the day and year first above written.

                                       Norwest Bank Minnesota, National
                                          Association

                                       By:______________________________________
                                          Name:
                                          Title:


                                       _________________________________________



                                       By:______________________________________
                                          Name:
                                          Title:






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