NORTHWEST ASSET SECS CORP MORT PAS THR CERT SER 1997-05 TR
8-K, 1997-04-24
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:  March 27, 1997
(Date of earliest event reported)

Commission File No. 333-21263




                      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 March  27,  1997,  Norwest  Asset  Securities  Corporation,  a  Delaware
corporation (the "Registrant"),  sold Mortgage Pass-Through Certificates, Series
1997-5, Class A-1, Class A-2, Class A-3, Class A-4, Class A-5, Class A-PO, Class
A-R,  Class M, Class B-1 and Class B-2 (the "Offered  Certificates"),  having an
aggregate   original   principal   balance  of   $148,827,598.89.   The  Offered
Certificates were issued pursuant to a Pooling and Servicing Agreement, dated as
of March 27,  1997,  among the  Registrant,  Norwest  Bank  Minnesota,  National
Association,  as master  servicer  (the "Master  Servicer"  or "Norwest  Bank"),
Firstar  Trust  Company,  as  trustee,  and First Union  National  Bank of North
Carolina, as trust administrator (the "Agreement"),  a copy of which is filed as
an exhibit hereto.  Mortgage  Pass-Through  Certificates,  Series 1997-5,  Class
A-WIO  Certificates  having no  principal  balance and Class B-3,  Class B-4 and
Class B-5  Certificates,  having  an  aggregate  initial  principal  balance  of
$1,125,545.44  (the "Private Class B Certificates"  and, together with the Class
A-WIO 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  99.25%  undivided  interest in a trust fund (the  "Trust  Estate"),
consisting principally of a pool of fixed interest rate,  conventional,  monthly
pay, fully-amortizing, one-to four-family residential first mortgage loans which
may include loans secured by shares issued by cooperative housing  corporations.
The  remaining  undivided  interests  in the Trust  Estate are  evidenced by the
Private  Class B  Certificates,  distributions  on  which  are  subordinated  to
distributions on the Offered Certificates.

     Interest   on  the  Offered   Certificates   (other  than  the  Class  A-PO
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 Amount is sufficient therefor.

     An  election  will be made to treat  the Trust  Estate a REMIC for  federal
income tax purposes (the  "REMIC").  The Class A-1,  Class A-2, Class A-3, Class
A-4,  Class A-5, Class A-WIO,  Class A-PO,  Class M, Class B-1, Class B-2, Class
B-3, Class B-4 and Class B-5 Certificates will be treated as "regular interests"
in the REMIC and the Class 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
                                                     March   27,   1997,   among
                                                     Norwest  Asset   Securities
                                                     Corporation,  Norwest  Bank
                                                     Minnesota,         National
                                                     Association,  Firstar Trust
                                                     Company,  as  trustee,  and
                                                     First Union  National  Bank
                                                     of North Carolina, as trust
                                                     administrator.



<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

March 27, 1997
                                           /s/ B. David Bialzak
                                           ------------------------------------
                                           B. David Bialzak
                                           Vice President




<PAGE>




                                INDEX TO EXHIBITS
                                -----------------



                                                              Paper (P) or
Exhibit No.         Description                               Electronic (E)
- -----------         -----------                               --------------


   (EX-4)           Pooling and Servicing                        E
                    Agreement, dated as of 
                    March 27, 1997 among Norwest
                    Asset Securities Corporation, 
                    Norwest Bank Minnesota, National 
                    Association, Firstar Trust
                    Company, as trustee, and First 
                    Union National Bank of North 
                    Carolina, as trust administrator.




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





                      NORWEST ASSET SECURITIES CORPORATION

                                    (Seller)

                                       and

                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION

                                (Master Servicer)

                                       and

                              FIRSTAR TRUST COMPANY

                                    (Trustee)

                                       and

                   FIRST UNION NATIONAL BANK OF NORTH CAROLINA

                              (Trust Administrator)



                         POOLING AND SERVICING AGREEMENT

                           Dated as of March 27, 1997

                                 $149,953,144.33




                       Mortgage Pass-Through Certificates
                                  Series 1997-5





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


<PAGE>



     This Pooling and Servicing  Agreement,  dated as of March 27, 1997 executed
by NORWEST ASSET  SECURITIES  CORPORATION,  as Seller,  NORWEST BANK  MINNESOTA,
NATIONAL ASSOCIATION,  as Master Servicer, FIRSTAR TRUST COMPANY, as Trustee and
FIRST UNION NATIONAL BANK OF NORTH CAROLINA, as Trust Administrator.


                                WITNESSETH THAT:

     In consideration of the mutual agreements herein contained, the Seller, the
Master Servicer, the Trustee and the Trust Administrator 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 Pool Amount:  With respect to any  Distribution  Date, the Cut-Off
Date Aggregate  Principal Balance of the Mortgage Loans minus the sum of (i) all
amounts in respect  of  principal  received  in  respect of the  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 the  Mortgage  Loans from the
Cut-Off Date through the end of the month preceding such Distribution Date.

     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:  the product of (i) the PO Fraction for each such 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  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  Mortgage  Loan from the Cut-Off  Date  through the end of the
month preceding such Distribution Date.

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

     Adjustment  Amount:  For any Distribution  Date, the difference between (A)
the sum of the Class A Principal Balance,  Class M Principal Balance and Class B
Principal  Balance as of the related  Determination  Date and (B) the sum of (i)
the sum of the Class A Principal Balance,  Class M 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 M Optimal Principal Amount,  Class B-1 Optimal Principal Amount, Class B-2
Optimal Principal Amount,  Class B-3 Optimal Principal Amount, Class B-4 Optimal
Principal Amount and Class B-5 Optimal Principal Amount.

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

     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.

     Authenticating  Agent:  Any  authenticating  agent  appointed  by the Trust
Administrator   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 Trust  Administrator  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
minus the aggregate amount of Bankruptcy  Losses allocated solely to the Class B
Certificates  or,  following the  reduction of the Class B Principal  Balance to
zero,  solely to the Class M  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  or,
following the reduction of the Class B Principal  Balance to zero, solely to the
Class M  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.

     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 of the  Class  A-1  Certificates,  Class  A-2
Certificates,  Class  A-3  Certificates,  Class A-4  Certificates  and Class A-5
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,  State of North  Carolina or State of Wisconsin 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,  State of North Carolina or State of Wisconsin
are authorized or obligated by law or executive order to be closed.

     Certificate:  Any one of the Class A Certificates,  Class M 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 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 Trust Administrator.

     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 (i) variations
in the Percentage Interest evidenced thereby and (ii) in the case of the Class A
Certificates  and Class B Certificates,  variations in Subclass  designation and
other Subclass characteristics.

     Class  A  Certificate:  Any  one  of  Class  A-1  Certificates,  Class  A-2
Certificates,   Class  A-3  Certificates,  Class  A-4  Certificates,  Class  A-5
Certificates,  Class A-PO  Certificates,  Class A-WIO  Certificates or Class A-R
Certificate.

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

     Class A Distribution  Amount:  As to any  Distribution  Date, the aggregate
amount  distributable  to the  Subclasses  of Class A  Certificates  pursuant to
Paragraphs  first,   second,  third  and  fourth  of  Section  4.01(a)  on  such
Distribution Date.

     Class A Fixed  Pass-Through Rate: As to any Distribution Date, the rate per
annum set forth in Section 11.01.

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

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

     Class A Non-PO Optimal  Amount:  As to any  Distribution  Date, the sum for
such Distribution Date of (i) the Class A Interest Accrual Amount,  (ii) the sum
of the Class A Subclass Unpaid Interest Shortfalls for each Class A Subclass and
(iii) the Class A Non-PO Optimal Principal Amount.

     Class A Non-PO 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 Class 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 Class 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 Class 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 Class 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan.

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

     Class A Non-PO Principal  Distribution  Amount: As to any Distribution Date
the aggregate amount  distributed in respect of the Class A Subclasses  pursuant
to Paragraph third clause (A) of Section 4.01(a).

     Class 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  Class  A  Non-PO   Principal   Balance   (determined  as  of  the
Determination Date preceding such Distribution Date) by the 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  Class A Non-PO
Principal  Balance to decline to zero  following the  distribution  made on such
Distribution Date.

     Class A Prepayment Percentage: As to any Distribution Date to and including
the  Distribution  Date  in  March  2002,  100%.  As to  any  Distribution  Date
subsequent to March 2002 to and including the  Distribution  Date in March 2003,
the Class A Percentage as of such Distribution Date plus 70% of the Subordinated
Percentage as of such Distribution  Date. As to any Distribution Date subsequent
to March 2003 to and including the Distribution  Date in March 2004, the Class A
Percentage as of such Distribution Date plus 60% of the Subordinated  Percentage
as of such  Distribution  Date. As to any Distribution  Date subsequent to March
2004  to and  including  the  Distribution  Date  in  March  2005,  the  Class A
Percentage as of such Distribution Date plus 40% of the Subordinated  Percentage
as of such  Distribution  Date. As to any Distribution  Date subsequent to March
2005  to and  including  the  Distribution  Date  in  March  2006,  the  Class A
Percentage as of such Distribution Date plus 20% of the Subordinated  Percentage
as of such  Distribution  Date. As to any Distribution  Date subsequent to March
2006,  the Class A Percentage  as of such  Distribution  Date.  The foregoing is
subject to the following:  (i) if the aggregate distribution to Holders of Class
A Certificates  on any  Distribution  Date of the Class A Prepayment  Percentage
provided  above of (a)  Unscheduled  Principal  Receipts  distributable  on such
Distribution  Date would reduce the Class A Non-PO Principal Balance below zero,
the  Class A  Prepayment  Percentage  for such  Distribution  Date  shall be the
percentage  necessary to bring the Class A Non-PO Principal  Balance to zero and
thereafter the Class A Prepayment Percentage shall be zero and (ii) if the Class
A Percentage as of any  Distribution  Date is greater than the Original  Class A
Percentage,  the Class 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  Class A
Prepayment  Percentage  described in the second through sixth  sentences of this
definition of Class A Prepayment Percentage shall not be applicable with respect
to such Distribution Date. In such event, the Class 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  Class  A  Prepayment   Percentage   for  the
Distribution  Date occurring in the March preceding such  Distribution  Date (it
being  understood  that for the  purposes  of the  determination  of the Class A
Prepayment  Percentage  for the current  Distribution  Date, the current Class A
Percentage  and  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 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 current Class M Principal  Balance
and the current Class B Principal  Balance and (b)  cumulative  Realized  Losses
shall not exceed (1) 30% of the Original Subordinated  Principal Balance if such
Distribution  Date occurs  between and including  April 2002 and March 2003, (2)
35% of the Original  Subordinated  Principal  Balance if such  Distribution Date
occurs between and including  April 2003 and March 2004, (3) 40% of the Original
Subordinated  Principal  Balance if such  Distribution  Date occurs  between and
including  April  2004 and  March  2005,  (4) 45% of the  Original  Subordinated
Principal  Balance if such  Distribution Date occurs between and including April
2005 and March 2006, and (5) 50% of the Original Subordinated  Principal Balance
if such Distribution Date occurs during or after April 2006. With respect to any
Distribution  Date on which the Class A Prepayment  Percentage  is reduced below
the Class A Prepayment  Percentage for the prior  Distribution  Date, the Master
Servicer  shall  certify  to the Trust  Administrator,  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.

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

     Class A Subclass: Any of the Subclasses of Class A Certificates  consisting
of the Class A-1 Certificates,  Class A-2 Certificates,  Class A-3 Certificates,
Class A-4 Certificates,  Class A-5 Certificate,  Class A-PO Certificates,  Class
A-WIO Certificates and Class A-R Certificate.

     Class A Subclass  Distribution  Amount: As to any Distribution Date and any
Class A Subclass,  the amount distributable to such Class A Subclass pursuant to
Paragraphs first, second, third and fourth of Section 4.01(a).

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

     Class A Subclass Interest  Percentage:  As to any Distribution Date and any
Class A  Subclass  (other  than the Class  A-PO  Certificates),  the  percentage
calculated  by dividing  the Class A Subclass  Interest  Accrual  Amount of such
Class A Subclass  (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 Class A Subclass Interest Accrual Amount).

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

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

     Class A Subclass Pass-Through Rate: As to each Class A Subclass, other than
the Class  A-PO and Class  A-WIO  Certificates,  the Class A Fixed  Pass-Through
Rate. As to the Class A-WIO Certificates, the Class A-WIO Pass-Through Rate. The
Class  A-PO  Certificates  are not  entitled  to  interest  and  have no Class A
Subclass Pass-Through Rate.

     Class A Subclass Principal Balance:  As of the first Determination Date and
as to any  Class A  Subclass  (other  than the  Class  A-WIO  Certificate),  the
Original Class A Subclass Principal Balance of such Class A Subclass.  As of any
subsequent Determination Date prior to the Cross-Over Date and as to any Class A
Subclass (other than the Class A-WIO and Class A-PO Certificates),  the Original
Class A Subclass  Principal Balance of such Class A Subclass less the sum of (a)
all amounts previously  distributed in respect of such Class A Subclass on prior
Distribution Dates (A) pursuant to Paragraph third clause (A) 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 such Class A Subclass pursuant to
Section 4.02(b). After the Cross-Over Date, each such Class A Subclass Principal
Balance  will also be reduced on each  Determination  Date by an amount equal to
the product of the Class A Subclass Loss Percentage of such Class A Subclass and
the  excess,  if any,  of (i) the Class A Non-PO  Principal  Balance  as of such
Determination  Date without  regard to this  sentence  over (ii) the  difference
between (A) the Adjusted Pool Amount for the preceding Distribution Date and (B)
the Adjusted Pool Amount (PO Portion) for the preceding  Distribution  Date. The
Class A-WIO Certificates will have no Class A Subclass Principal Balance.

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

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

     Class A Unpaid Interest  Shortfall:  As to any Distribution Date, an amount
equal to the sum of the Class A Subclass Unpaid Interest  Shortfalls for all the
Class A Subclasses.

     Class  A  Voting  Interest:  The  sum of (A) the  product  of (i) the  then
applicable  Class A Percentage  and (ii) the Non-PO Voting  Interest and (B) the
Pool Balance (PO Portion)  divided by the Pool Balance (Non-PO  Portion) and the
Pool Balance (PO Portion).

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

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

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

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

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

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

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

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

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

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

     Class A-5 Percentage:  The Class A Subclass  Principal Balance of the Class
A-5 Certificates divided by the Pool Balance (Non-PO Portion).

     Class A-5 Prepayment Shift  Percentage:  As to any  Distribution  Date, the
percentage indicated below:

                                                    Class A-5 Prepayment
Distribution Date Occurring In                        Shift Percentage
- ------------------------------                        ----------------

April 1997 through March 2002...................              0%
April 2002 through March 2003...................             30%
April 2003 through March 2004...................             40%
April 2004 through March 2005...................             60%
April 2005 through March 2006...................             80%
April 2006 through thereafter...................            100%

     Class A-5 Priority Amount: For any Distribution Date, the lesser of (i) the
Class A Subclass  Principal  Balance of the Class A-5  Certificates and (ii) the
sum of (A) the  product of (1) the Class A-5  Percentage  and (2) the  Scheduled
Principal  Amount and (B) the product of (1) the Class A-5  Percentage,  (2) the
Class A-5 Prepayment Shift Percentage, and (3) the Unscheduled Principal Amount.

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

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

     Class  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 A-PO Optimal Principal  Amounts for all prior  Distribution
Dates exceeded the amounts  distributed on the Class A-PO  Certificates  on such
prior  Distribution  Dates  pursuant to  Paragraph  third  clause (B) of Section
4.01(a)  and (y) the sum of the product for each  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  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 A-PO Certificates on
prior Distribution Dates pursuant to Paragraph fourth of Section 4.01(a). On and
after the  Cross-Over  Date,  the Class A-PO  Deferred  Amount will be zero.  No
interest will accrue on any Class A-PO Deferred Amount.

     Class A-PO Distribution  Amount As to any Distribution  Date, the aggregate
amount distributable to the Class A-PO Certificates pursuant to Paragraphs third
clause (B) and fourth of Section 4.01(a) on such Distribution Date.

     Class  A-PO  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 PO  Fraction  with  respect to such
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  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) 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 Scheduled  Principal  Balance of each Mortgage Loan that was
     repurchased by the Seller during such  preceding  month pursuant to Section
     2.02 or 2.03;

          (iv) 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 Servicer,  the Master Servicer or the Trust Administrator in respect of
     such defective Mortgage Loan.

     Class A-R Certificate:  The Certificate executed by the Trust Administrator
and  authenticated  by the Trust  Administrator or the  Authenticating  Agent in
substantially the form set forth in Exhibit A-R and Exhibit D hereto.

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

     Class A-WIO Certificate:  Any one of the Certificates executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit A-WIO and Exhibit D hereto.

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

     Class A-WIO Interest Accrual Amount:  As to any Distribution  Date, (i) the
product of (a)  1/12th of the Class  A-WIO  Pass-Through  Rate and (b) the Class
A-WIO Notional Amount as of the  Determination  Date preceding such Distribution
Date minus  (ii) the Class A Subclass  Interest  Percentage  of the Class  A-WIO
Certificates of (x) any Non-Supported  Interest Shortfall allocated to the Class
A Certificates with respect to such Distribution  Date, (y) the interest portion
of any Excess Special Hazard Losses,  Excess Fraud Losses and Excess  Bankruptcy
Losses allocated to the Class A Certificates  with respect to such  Distribution
Date  pursuant to Section  4.02(e) and (z) the interest  portion of any Realized
Losses (other than Excess Special Hazard Losses,  Excess Fraud Losses and Excess
Bankruptcy  Losses)  allocated  to the  Class A  Certificates  on or  after  the
Cross-Over Date pursuant to Section 4.02(e).

     Class A-WIO Notional  Amount:  As to any  Distribution  Date, the aggregate
Scheduled   Principal   Balance  of  the  Premium  Mortgage  Loans  as  of  such
Distribution Date.

     Class A-WIO  Pass-Through  Rate: As to any  Distribution  Date, a per annum
rate equal to the  Weighted  Average Net Mortgage  Interest  Rate of the Premium
Mortgage Loans minus 7.00%

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

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

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

     Class B Pass-Through Rate: As to any Distribution Date, 7.00% 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 and Class B-5 Principal Balance.

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

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

     Class B Subclass  Interest Accrual Amount:  As to any Distribution Date and
any Class B Subclass,  an amount equal to (i) the product of 1/12th of the Class
B Pass-Through  Rate and the Class B Subclass  Principal Balance of such Class B
Subclass as of the  Determination  Date preceding such  Distribution  Date minus
(ii) the Class B Subclass  Interest  Percentage  of such Class B Subclass of (x)
any Non-Supported  Interest Shortfall allocated to the Class B Certificates with
respect to such  Distribution  Date and (y) the  interest  portion of any Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
allocated to the Class B  Certificates  with respect to such  Distribution  Date
pursuant to Section 4.02(e).

     Class B Subclass Interest  Percentage:  As to any Distribution Date and any
Class B Subclass,  the  percentage  calculated  by dividing the Class B Subclass
Interest Accrual Amount of such Class B Subclass  (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 Class B
Subclass Interest Accrual Amount).

     Class B Subclass 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 or Class B-5 Interest
Shortfall Amount.

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

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

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

     Class B Subclass Principal Balance: Any of the Class B-1 Principal Balance,
Class B-2 Principal Balance,  Class B-3 Principal  Balance,  Class B-4 Principal
Balance or Class B-5 Principal Balance.

     Class B Subclass  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  or Class B-5 Unpaid
Interest Shortfall.

     Class B-1 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-1 and Exhibit D 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
Paragraphs eighth, ninth and tenth of Section 4.01(a).

     Class B-1 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  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 Paragraph eighth of Section 4.01(a).

     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 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 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 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 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the Subordinated
Percentage by (ii) 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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-1  Certificates  are not  eligible  to  receive
distributions of principal in accordance with Section 4.01(d)(i),  the Class B-1
Percentage for such Distribution Date will be zero.

     Class B-1 Prepayment Percentage: As to any Distribution Date, except as set
forth in the next  sentence,  the percentage  calculated by multiplying  (i) the
Subordinated Prepayment Percentage by (ii) 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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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-1
Certificates  are  not  eligible  to  receive   distributions  of  principal  in
accordance with Section 4.01(d)(i), the Class B-1 Prepayment Percentage for such
Distribution Date will be zero.

     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 Paragraph tenth 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  Adjusted  Pool  Amount  as  of  the  preceding
Distribution  Date less the sum of the Class A Principal Balance and the Class M
Principal Balance as of such Determination Date.

     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
Paragraph ninth of Section 4.01(a).

     Class B-2 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-2 and Exhibit D 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
Paragraphs eleventh, twelfth and thirteenth of Section 4.01(a).

     Class B-2 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  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 Paragraph eleventh of Section 4.01(a).

     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 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 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 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 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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 Class B-2
Percentage for such Distribution Date will be zero.

     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
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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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 Class B-2 Prepayment Percentage for such
Distribution Date will be zero.

     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 Paragraph thirteenth 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  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the sum of the  Class A  Principal  Balance  the Class M
Principal Balance and the Class B-1 Principal  Balance as of such  Determination
Date.

     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
Paragraph twelfth of Section 4.01(a).

     Class B-3 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-3 and Exhibit D 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
Paragraphs fourteenth, fifteenth and sixteenth of Section 4.01(a).

     Class B-3 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  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 Paragraph fourteenth of Section 4.01(a).

     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 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 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 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 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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 Class B-3
Percentage for such Distribution Date will be zero.

     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
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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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 Class B-3 Prepayment Percentage for such
Distribution Date will be zero.

     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 Paragraph  sixteenth of Section 4.01(a)
and (B) as a  result  of a  Principal  Adjustment  and (b) the  Realized  Losses
through such Determination Date allocated to the Class B-3 Certificates pursuant
to  Section  4.02(b)  and (ii) the  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the sum of the Class A  Principal  Balance,  the Class M
Principal  Balance,  the Class B-1 Principal Balance and the Class B-2 Principal
Balance as of such Determination Date.

     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
Paragraph fifteenth of Section 4.01(a).

     Class B-4 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-4 and Exhibit D 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
Paragraphs seventeenth, eighteenth, and nineteenth of Section 4.01(a).

     Class B-4 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  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 Paragraph seventeenth of Section 4.01(a).

     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 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 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 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 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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 Class B-4
Percentage for such Distribution Date will be zero.

     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
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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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 Class B-4 Prepayment Percentage for such
Distribution Date will be zero.

     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 Paragraph nineteenth 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  Adjusted  Pool  Amount  as of the  preceding
Distribution  Date less the sum of the Class A  Principal  Balance,  the Class M
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 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
Paragraph eighteenth of Section 4.01(a).

     Class B-5 Certificate:  Any one of the  Certificates  executed by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit B-5 and Exhibit D 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
Paragraphs twentieth, twenty-first, and twenty-second of Section 4.01(a).

     Class B-5 Interest  Shortfall  Amount:  As to any  Distribution  Date,  any
amount by which the Class B Subclass  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 Paragraph twentieth of Section 4.01(a).

     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 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 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 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 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 Servicer,  the Master Servicer or the Trust
     Administrator in respect of such defective Mortgage Loan;

provided,  however,  that if an Optimal  Adjustment Event occurs with respect to
such Subclass 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 Percentage:  As to any Distribution  Date, except as set forth in
the next sentence, the percentage calculated by multiplying (i) the 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 Class M Principal  Balance
and the Class B Subclass Principal  Balances of the Class B Subclasses  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 Class B-5
Percentage for such Distribution Date will be zero.

     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
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
Class M  Principal  Balance and the Class B Subclass  Principal  Balances of the
Class  B  Subclasses  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 Class B-5 Prepayment Percentage for such
Distribution Date will be zero.

     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 pursuant to Paragraph  twenty-second of Section 4.01(a)
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 Adjusted Pool
Amount  as of the  preceding  Distribution  Date  less  the  sum of the  Class A
Principal  Balance,  the Class M  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 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
Paragraph twenty-first of Section 4.01(a).

     Class M  Certificate:  Any one of the  Certificates  executed  by the Trust
Administrator and authenticated by the Trust Administrator or the Authenticating
Agent in substantially the form set forth in Exhibit C and Exhibit D hereto.

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

     Class M  Distribution  Amount:  As to any  Distribution  Date,  any  amount
distributable to the Holders of the Class M Certificates  pursuant to Paragraphs
fifth, sixth and seventh of Section 4.01(a).

     Class M Interest  Accrual Amount:  As to any  Distribution  Date, an amount
equal to (i) the  product  of 1/12th of the  Class M  Pass-Through  Rate and the
Class  M  Principal  Balance  as  of  the  Determination   Date  preceding  such
Distribution Date minus (ii) (x) any Non-Supported  Interest Shortfall allocated
to the Class M Certificates  with respect to such  Distribution Date and (y) the
interest  portion of any Excess Special  Hazard Losses,  Excess Fraud Losses and
Excess  Bankruptcy  Losses allocated to the Class M Certificates with respect to
such Distribution Date pursuant to Section 4.02(e).

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

     Class M 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 Class M 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 Class M 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 Class M 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 Class M  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 Servicer,  the Master Servicer or the Trust
     Administrator 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 M Optimal Principal Amount will
equal  the  lesser of (A) the Class M Optimal  Principal  Amount  calculated  as
described in the preceding provisions and (B) the Adjusted Principal Balance for
the Class M Certificates.

     Class M Pass-Through Rate: As to any Distribution Date, 7.00% per annum.

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

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

     Class M Principal Balance: As to the first Determination Date, the Original
Class M Principal Balance.  As of any subsequent  Determination Date, the lesser
of (i) the  Original  Class M Principal  Balance less the sum of (a) all amounts
previously  distributed  in  respect  of  the  Class  M  Certificates  on  prior
Distribution  Dates (A) pursuant to Paragraph seventh 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 M Certificates  pursuant to Section
4.02(b) and (ii) the Adjusted Pool Amount as of the preceding  Distribution Date
less the Class A Principal Balance as of such Determination Date.

     Class M Unpaid Interest Shortfall: As to any Distribution Date, the amount,
if any, by which the  aggregate  of the Class M Interest  Shortfall  Amounts for
prior Distribution  Dates is in excess of the amounts  distributed in respect of
the Class M Certificates on prior Distribution Dates pursuant to Paragraph sixth
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 11.23.

     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 Trust  Administrator or
the Trustee,  as the case may be, at which at any particular  time its corporate
trust business shall be  administered,  which office,  with respect to the Trust
Administrator, at the date of the execution of this instrument is located at 230
South Tryon Street,  Charlotte,  North  Carolina  28288 and, with respect to the
Trustee,  at the date of the execution of this instrument is located at 615 East
Michigan Street, Lewis Center, 4th Floor, Milwaukee, Wisconsin 53202.

     Cross-Over  Date: The  Distribution  Date preceding the first  Distribution
Date on which the Class A Percentage  (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 Class A Interest  Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect  of the  Class A  Subclasses  pursuant  to
Paragraph first 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 Class B  Certificates  pursuant  to
Paragraphs eighth,  eleventh,  fourteenth,  seventeenth and twentieth 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 Class B Subclass  Principal Balances of the Class B-2, Class B-3,
Class B-4 and Class B-5  Certificates by the sum of the Class A Non-PO Principal
Balance,  the Class M Principal Balance and the Class B 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 Class B Subclass  Principal  Balances of the Class B-3, Class B-4
and Class B-5 Certificates by the sum of the Class A Non-PO  Principal  Balance,
the Class M Principal Balance and the Class B 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 Class B Subclass  Principal  Balances  of the Class B-4 and Class
B-5 Certificates by the sum of the Class A Non-PO Principal Balance, the Class M
Principal  Balance  and  the  Class  B  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 Class B Subclass  Principal Balance of the Class B-5 Certificates by the sum
of the Class A Non-PO Principal  Balance,  the Class M Principal Balance and the
Class B Principal Balance. As to the first Distribution Date, the Original Class
B-4 Fractional Interest.

     Current Class M Fractional Interest: As to any Distribution Date subsequent
to the first Distribution Date, the percentage  obtained by dividing the Class B
Principal Balance by the sum of the Class A Non-PO Principal Balance,  the Class
M  Principal  Balance  and  the  Class  B  Principal  Balance.  As to the  first
Distribution Date, the Original Class M Fractional Interest.

     Current Class M Interest  Distribution Amount: As to any Distribution Date,
the  amount  distributed  in  respect of the Class M  Certificates  pursuant  to
Paragraph fifth of Section 4.01(a) on such Distribution Date.

     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 Trust  Administrator,  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  Trust  Administrator,   and  thereafter  the
Custodian,  if any, hereafter appointed by the Trust  Administrator  pursuant to
Section 8.13, or its successor in interest  under the Custodial  Agreement.  The
Custodian  may (but need not) be the  Trustee,  the Trust  Administrator  or any
Person  directly or  indirectly  controlling  or  controlled  by or under common
control  of either of them.  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 11.02.

     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 11.03.

     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
(other than the Class A-WIO Certificates)  representing the principal portion of
the Cut-Off Date Aggregate  Principal Balance evidenced by such Certificate.  As
to the Class A-WIO  Certificates,  the Percentage Interest specified on the face
of each Class A-WIO 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 Mortgage Loan with a Net Mortgage  Interest Rate
of less than 7.00%.

     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.

     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 Trust Administrator,  such that the Trust Administrator, 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 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-2 Mortgage Loan: Any of the Mortgage Loans  identified in Exhibit
F-2 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 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.

     Fitch: Fitch Investors Service, L.P., or its successor in interest.

     FNMA: The Federal National Mortgage Association 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  $2,999,062.89  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.

     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,  trust  administrator,  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.

     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  Trust  Administrator  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 11.28.

     Mid-Month Receipt Period:  With respect to each Distribution  Date, the one
month period beginning on the Determination 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.

     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.

     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 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
Trust Administrator on the Closing Date as part of the Trust Estate and attached
hereto as Exhibits  F-1, F-2 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) whether such Mortgage Loan is a T.O.P. Mortgage Loan;

     (xv) the Master Servicing Fee; and

     (xvi) for Mortgage Loans identified on Exhibit F-3, 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
Trust  Administrator  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.

     Mortgagor:  The obligor on a Mortgage Note.

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

     Net Liquidation Proceeds:  As to any Liquidated Loan,  Liquidation Proceeds
net of Liquidation Expenses. For all purposes of this Agreement, Net Liquidation
Proceeds shall be allocated  first to accrued and unpaid interest on the related
Mortgage Loan and then to the unpaid principal balance thereof.

     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  11.27 with respect to
such  Mortgage  Loan and (b) the  Master  Servicing  Fee  Rate,  as set forth in
Section  11.28  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 Partial Liquidation Proceeds: Partial Liquidation Proceeds with respect
to a  Mortgage  Loan net of  unreimbursed  Liquidation  Expenses  incurred  with
respect to such Mortgage Loan. For all purposes of this  Agreement,  Net Partial
Liquidation  Proceeds shall be allocated first to accrued and unpaid interest on
the related Mortgage Loan and then to the unpaid principal balance thereof.

     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 7.00%.

     Non-PO  Voting  Interest:  The ratio  obtained by dividing the Pool Balance
(Non-PO  Portion) by the sum of the Pool Balance  (Non-PO  Portion) and the Pool
Balance (PO Portion).

     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  Trust
Administrator, as the case may be, and which the Servicer or the Master Servicer
or the Trust  Administrator  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 Trust Administrator (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 Trust  Administrator  or, in the case of a Master  Servicer or
Trust  Administrator  determination,  an  Officer's  Certificate  of the  Master
Servicer  or the Trust  Administrator  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 Class A  Certificates  according to the
percentage  obtained by dividing the Class A Non-PO Principal Balance by the sum
of the Class A Non-PO Principal  Balance,  the Class M Principal Balance and the
Class B  Principal  Balance,  (b)  the  Class M  Certificates  according  to the
percentage  obtained by dividing the Class M Principal Balance by the sum of the
Class A Non-PO Principal Balance,  the Class M Principal Balance and the Class B
Principal  Balance and (c) the Class B Certificates  according to the percentage
obtained  by dividing  the Class B  Principal  Balance by the sum of the Class A
Non-PO  Principal  Balance,  the  Class M  Principal  Balance  and  the  Class B
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, other than PHMC, 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 and Exhibit F-2 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 or Trust Administrator, as the case may be.

     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,  or acceptable to the
Trust   Administrator   if  such  opinion  is  to  be  delivered  to  the  Trust
Administrator;  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 the Class M Certificates or any
Class B Subclass and any  Distribution  Date, an Optimal  Adjustment  Event will
occur with  respect to such Class or Subclass if: (i) the  principal  balance of
such Class or Subclass 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) any Class A  Subclass  Principal
Balance would be subject to further  reduction as a result of the third or fifth
sentences of the  definition of Class A Subclass  Principal  Balance or (b) with
respect to any Class B Subclass,  the Class M  Principal  Balance or the Class B
Subclass  Principal  Balance  of a  Class  B  Subclass  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 M  Principal
Balance,  Class B-1 Principal Balance,  Class B-2 Principal  Balance,  Class B-3
Principal Balance, Class B-4 Principal Balance or Class B-5 Principal Balance.

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

     Original Class A Non-PO Principal Balance:  The sum of the Original Class A
Subclass  Principal  Balances of the Class A-1, Class A-2, Class A-3, Class A-4,
Class A-5 and Class A-R Certificates, as set forth in Section 11.05.

     Original Class A Subclass  Principal  Balance:  Any of the Original Class A
Subclass Principal Balances as set forth in Section 11.05.

     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 and Original Class B-5
Principal Balance, as set forth in Section 11.18.

     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 and the Original Class B-5 Principal Balance by the sum of the
Original  Class A Non-PO  Principal  Balance,  the  Original  Class M  Principal
Balance and the  Original  Class B Principal  Balance.  The  Original  Class B-1
Fractional Interest is specified in Section 11.19.

     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 and the Original  Class B-5
Principal  Balance by the sum of the Original Class A Non-PO Principal  Balance,
the  Original  Class M  Principal  Balance  and the  Original  Class B Principal
Balance.  The  Original  Class B-2  Fractional  Interest is specified in Section
11.20.

     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 and the Original Class B-5 Principal  Balance by the sum of the Original
Class A Non-PO Principal Balance, the Original Class M Principal Balance and the
Original Class B Principal Balance.  The Original Class B-3 Fractional  Interest
is specified in Section 11.21.

     Original Class B-4 Fractional Interest:  As to the first Distribution Date,
the percentage  obtained by dividing the Original Class B-5 Principal Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
B-4 Fractional Interest is specified in Section 11.22.

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

     Original Class B-2  Percentage:  The Class B-2 Percentage as of the Cut-Off
Date, as set forth in Section 11.13.

     Original Class B-3  Percentage:  The Class B-3 Percentage as of the Cut-Off
Date, as set forth in Section 11.14.

     Original Class B-4  Percentage:  The Class B-4 Percentage as of the Cut-Off
Date, as set forth in Section 11.15.

     Original Class B-5  Percentage:  The Class B-5 Percentage as of the Cut-Off
Date, as set forth in Section 11.16.

     Original Class B-1 Principal Balance: The Class B-1 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-2 Principal Balance: The Class B-2 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-3 Principal Balance: The Class B-3 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-4 Principal Balance: The Class B-4 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class B-5 Principal Balance: The Class B-5 Principal Balance as of
the Cut-Off Date, as set forth in Section 11.18.

     Original Class M Fractional  Interest:  As to the first  Distribution Date,
the percentage  obtained by dividing the Original  Class B Principal  Balance by
the sum of the Original Class A Non-PO Principal  Balance,  the Original Class M
Principal Balance and the Original Class B Principal Balance. The Original Class
M Fractional Interest is specified in Section 11.11.

     Original Class M Percentage: The Class M Percentage as of the Cut-Off Date,
as set forth in Section 11.09.

     Original Class M Principal Balance: The Class M Principal Balance as of the
Cut-Off Date, as set forth in Section 11.10.

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

     Original  Subordinated  Principal Balance:  The sum of the Original Class M
Principal Balance and the Original Class B Principal Balance.

     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 Trust  Administrator (or
the  Custodian,  if any) for each  Mortgage  Loan that  contains  the  documents
specified in the Servicing  Agreements  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.

     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 Trust  Administrator,
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  or  the  Trust
Administrator. 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  (other than a
Class A-WIO Certificate), the undivided percentage interest obtained by dividing
the original  principal  balance of such  Certificate by the aggregate  original
principal balance of all Certificates of such Class A Subclass.  With respect to
the Class A-WIO  Certificate,  the percentage  interest specified on the face of
such  Certificate.  With  respect  to  a  Class  M  Certificate,  the  undivided
percentage  interest obtained by dividing the original principal balance of such
Certificate by the aggregate  original  principal balance of all Certificates of
such Class.  With respect to a Class B  Certificate,  the  undivided  percentage
interest obtained by dividing the original principal balance of such Certificate
by the aggregate  original principal balance of all Certificates of such Class B
Subclass.

     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 Trust  Administrator  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 Trust  Administrator  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 Trust Administrator,  as the case may be and (z) have not
been determined by the Master Servicer,  such Servicer or Trust Administrator 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.

     PHMC: The Prudential Home Mortgage Company, Inc.

     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 Balance (Non-PO Portion):  As of any Distribution Date, the sum of the
amounts  for each  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.

     Pool Balance (PO  Portion):  As of any  Distribution  Date,  the sum of the
amounts  for each  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.

     Pool Distribution  Amount: As of any Distribution  Date, the funds eligible
for distribution to the Holders of the 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 Mortgage
Loans  (including,  without  limitation,  the  proceeds of any  repurchase  of a
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 by a Servicer  pursuant to the related
Servicing  Agreement  or Periodic  Advances  made by the Master  Servicer or the
Trust  Administrator  pursuant  to  Section  3.03 and (iii)  all  other  amounts
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  Trust
Administrator on or prior to the Distribution Date, but excluding the following:

          (a) amounts  received as late  payments of  principal  or interest and
     respecting  which the Master Servicer or the Trust  Administrator  has made
     one or more unreimbursed Periodic Advances;

          (b) the portion of Net  Liquidation  Proceeds  used to  reimburse  any
     unreimbursed  Periodic  Advances  by  the  Master  Servicer  or  the  Trust
     Administrator;

          (c)  those  portions  of each  payment  of  interest  on a  particular
     Mortgage Loan which represent (i) the applicable Servicing Fee and (ii) the
     Master Servicing Fee;

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

          (e) all Unscheduled Principal Receipts received by the Servicers 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 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 Mortgage Loan substituted for
     a defective  Mortgage  Loan during the month  preceding  the month in which
     such  Distribution  Date  occurs and the unpaid  principal  balance of such
     defective Mortgage Loan;

          (g) that  portion  of  Liquidation  Proceeds  and REO  Proceeds  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  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) Net Foreclosure Profits;

          (k) Month End Interest; and

          (l) the amount of any  recoveries  in respect of  principal  which had
     previously  been allocated as a loss to one or more Subclasses of the Class
     A or Class B Certificates  or the Class M Certificates  pursuant to Section
     4.02.

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

     Premium Mortgage Loan: A Mortgage Loan with a Net Mortgage Interest Rate of
7.00% or greater.

     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.

     Principal  Adjustment:  In the event  that the  Class M  Optimal  Principal
Amount,  Class B-1 Optimal Principal Amount, Class B-2 Optimal Principal Amount,
Class B-3 Optimal Principal Amount,  Class B-4 Optimal Principal Amount or Class
B-5 Optimal  Principal  Amount is calculated  in accordance  with the proviso in
such definition with respect to any Distribution Date, the Principal  Adjustment
for the Class M Certificates or such Class B Subclass shall equal the difference
between  (i) the  amount  that  would  have been  distributed  to such  Class or
Subclass 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 or Subclass.

     Principal  Balance:  Each of the Class A Subclass Principal  Balances,  the
Class M  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.

     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.

     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  and Class M Certificates  are
S&P and Fitch.  The Rating  Agency for the Class B-1,  Class B-2,  Class B-3 and
Class B-4 Certificates is S&P. 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,  the Trust Administrator and the Master Servicer.
References  herein to the highest  short-term rating category of a Rating Agency
shall  mean  A-1+ in the case of S&P 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 in the case of S&P, AAA in the case of Fitch,  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.

     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 or the Trust
Administrator,  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  or  the  Trust
Administrator,  as the case may be, 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.

     S&P:  Standard and Poor's, or its successor in interest.

     Scheduled  Principal  Amount:  The sum for each  outstanding  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
Class  A  Non-PO  Optimal  Principal  Amount,  but  without  that  amount  being
multiplied by the Class A Percentage.

     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 related 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.

     Senior  Optimal  Amount:  As to any  Distribution  Date,  the sum for  such
Distribution  Date of (a) the Class A Non-PO  Optimal  Amount  and (b) the Class
A-PO Optimal Principal Amount.

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

     Servicers: Each of Norwest Mortgage Inc., First Union Mortgage Corporation,
National City Mortgage  Company,  Citicorp  Mortgage,  Inc., First Bank National
Association,   SunTrust  Mortgage  Inc.,   Countrywide  Home  Loans,  Inc.,  The
Huntington  Mortgage  Company and Cimarron  Mortgage Corp. 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 11.27.

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

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

     Single  Certificate:  A Certificate of any Class or Subclass that evidences
the smallest permissible  Denomination for such Class or Subclass,  as set forth
in Section 11.26.

     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,  the  Trust  Administrator  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 a Servicing Agreement.

     Special Hazard Loss Amount: As of any Distribution Date, an amount equal to
$1,994,220.28 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 Trust  Administrator.  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.

     Subclass:  Each  subdivision  of  the  Class  A  Certificates,  denominated
respectively  as Class A-1,  Class A-2,  Class A-3,  Class A-4, Class A-5, Class
A-PO,   Class  A-WIO  and  Class  A-R  and  each  subdivision  of  the  Class  B
Certificates, denominated respectively as Class B-1, Class B-2, Class B-3, Class
B-4 and Class B-5.

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

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

     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.

     T.O.P.  Mortgage  Loan:  Any Mortgage  Loan that was  originated by Norwest
Mortgage or an  affiliate  thereof in  connection  with the "Title  Option Plus"
program  and which is not  covered  by a title  insurance  policy.  Each  T.O.P.
Mortgage Loan shall be identified as such in the Mortgage Loan Schedule.

     Trust  Administrator:  First  Union  National  Bank of  North  Carolina,  a
national banking association,  or any successor trust adminiatrator appointed as
herein provided.

     Trust Estate: The corpus of the trust created by this Agreement, consisting
of the  Mortgage  Loans,  such  amounts  as may be held from time to time in the
Certificate Account, and the rights of the Trust Administrator, on behalf 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, property which secured a Mortgage Loan and which has been acquired by
foreclosure or deed in lieu of foreclosure.

     Trustee:  Firstar  Trust  Company,  or any successor  trustee  appointed as
herein provided.

     Unpaid  Interest  Shortfalls:  Each of the Class A Subclass Unpaid Interest
Shortfalls, the Class M Unpaid Interest Shortfall, 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 and the Class B-5
Unpaid Interest Shortfall.

     Unscheduled  Principal Amount:  The sum for each outstanding  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 Class A Non-PO  Optimal  Principal  Amount,  but without  that  amount  being
multiplied by the Class A Prepayment Percentage.

     Unscheduled  Principal Receipt:  Any Mortgagor payment or other recovery of
principal 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,  including, without limitation,  Principal
Prepayments,  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 and excluding any Net Foreclosure
Profits and  proceeds of a repurchase  of a Mortgage  Loan by the Seller and any
Substitution Principal Amounts.

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

     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,  (a) the Holders of the Class A
Certificates will  collectively be entitled to the Class A Voting Interest,  (b)
the Holders of the Class M  Certificates  will  collectively  be entitled to the
then applicable  percentage of the aggregate Voting Interest  represented by all
Certificates  equal to the product of (i) the ratio  obtained  by  dividing  the
Class M Principal  Balance by the sum of the Class A Non-PO  Principal  Balance,
the Class M Principal  Balance  and the Class B  Principal  Balance and (ii) the
Non-PO  Voting  Interest  and (c) the Holders of the Class B  Certificates  will
collectively  be  entitled  to the  balance  of the  aggregate  Voting  Interest
represented by all Series 1997-5 Certificates. The aggregate Voting Interests of
each Subclass of Class A Certificates (other than the Class A-WIO and Class A-PO
Certificates) on any date will be equal to the product of (a) 99% of the Class A
Voting Interest  represented by clause (A) of the definition thereof and (b) the
fraction  obtained by dividing  the Class A Subclass  Principal  Balance of such
Class A Subclass  by the Class A Non-PO  Principal  Balance  on such  date.  The
aggregate Voting Interest of the Class A-WIO Certificates on any date will be 1%
of the amount of the Class A Voting interest on such date  represented by clause
(A) of the definition of Class A Voting Interest. The aggregate Voting Interests
of the Class A-PO  Certificates  on any date will be equal to the Class A Voting
Interest  represented  by clause (B) of the  definition  thereof.  The aggregate
Voting  Interests  of each  Subclass  of Class B  Certificates  will  equal such
Subclass's  pro rata  portion of the Voting  Interest  allocated  to the Class B
Certificates  based  on such  Subclass's  outstanding  principal  balance.  Each
Certificateholder  of a Class or Subclass will have a Voting  Interest  equal to
the  product  of the  Voting  Interest  to  which  such  Class  or  Subclass  is
collectively  entitled  and the  Percentage  Interest  in such Class or Subclass
represented by such Holder's Certificates. With respect to any provisions hereof
providing  for  action,  consent  or  approval  of each  Class  or  Subclass  of
Certificates  or  specified   Classes  or  Subclasses  of   Certificates,   each
Certificateholder  of a Class or  Subclass  will have a Voting  Interest in such
Class or Subclass  equal to such Holder's  Percentage  Interest in such Class or
Subclass.

     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 and
the Trust  Administrator.  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 and the Trust Administrator, 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,  the Trust  Administrator and the
Authenticating Agent) shall be proved by the Certificate  Register,  and neither
the Trustee, the Trust  Administrator,  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
Trust  Administrator,  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,  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  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 and
(d) 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 Trust Administrator, 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 Trust Administrator 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 Trust Administrator  promptly following its recordation,  but in no event
later than one (1) year  following the Closing Date. The Seller shall also cause
to be delivered to the Trust  Administrator  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 Trust  Administrator  within  one (1) year  following  the
Closing Date any original  Mortgage or assignment of a Mortgage not delivered to
the Trust Administrator on the Closing Date.

     In lieu of recording an  assignment  of any Mortgage the Seller may, to the
extent set forth in any Servicing Agreement, deliver or cause to be delivered to
the Trust  Administrator  the assignment of the Mortgage Loan from the Seller to
the Trust  Administrator  in a form suitable for  recordation,  together with an
Opinion of Counsel to the effect that  recording  is not required to protect the
Trustee's  right,  title and interest in and to the related Mortgage Loan or, in
case a  court  should  recharacterize  the  sale  of  the  Mortgage  Loans  as a
financing, to perfect a first priority security interest in favor of the Trustee
in the related  Mortgage  Loan. 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 Trust  Administrator  and the Trust  Administrator  shall within five
Business Days (or such other  reasonable  period of time mutually agreed upon by
the Master Servicer and the Trust  Administrator)  of its receipt of such notice
deliver  each  previously  unrecorded  assignment  to the related  Servicer  for
recordation.

Section 2.02. Acceptance by Trust Administrator.

     The Trust Administrator on behalf of the Trustee,  acknowledges  receipt of
the Mortgage Notes, the Mortgages,  the assignments 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  Trust  Administrator   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 Trust Administrator 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
Trust Administrator 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 Trust  Administrator  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 Trust  Administrator'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 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
Trust  Administrator 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, Master
Servicer or Trust  Administrator  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  Trust   Administrator  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 Trust  Administrator  shall
release to the Seller the related Owner Mortgage Loan File and shall execute and
deliver  such  instrument  of  transfer  or  assignment,  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,  the Trust
Administrator  on  behalf  of the  Trustee  and the  Trustee  on  behalf  of the
Certificateholders.  The failure of the Trust  Administrator  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 Trust  Administrator 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  Trust  Administrator
appoints a Custodian to hold the Mortgage Notes, the Mortgages,  the assignments
and  other  documents  related  to the  Mortgage  Loans  received  by the  Trust
Administrator,  as agent for 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 and
the Trust  Administrator 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 Servicer or any of its assets;

               (iii) This Agreement,  assuming due authorization,  execution and
          delivery  by the  Trustee,  the Trust  Administrator  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 Trust Administrator or the Custodian.

     (b) The Seller hereby  represents and warrants to the Trustee and the Trust
Administrator  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  Trust  Administrator  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 Trust  Administrator  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 Trust Administrator by the Seller;

               (viii) Except for Mortgage  Loans  secured by Co-op  Shares,  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 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  identified on
          the Mortgage Loan Schedule as a T.O.P.  Mortgage Loan and any Mortgage
          Loan secured by  Mortgaged  Property  located in Iowa,  as to which an
          opinion of counsel of the type  customarily  rendered in such State 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 Trust  Administrator,  on behalf of 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 Trust  Administrator  on behalf 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 Flood  Disaster
          Protection  Act of 1973;  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 180 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 of the Code; and

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

     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 Trust Administrator and shall inure to the benefit of
the  Trust  Administrator,   on  behalf  of  the  Trustee   notwithstanding  any
restrictive or qualified endorsement or assignment.

     (c) Upon discovery by either the Seller, the Master Servicer,  the Trustee,
the Trust  Administrator  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 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,  the Trust  Administrator  on behalf of the  Trustee  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 Trust  Administrator  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 Subclasses of Class A Certificates  (other
than the Class A-R Certificate),  the Class M Certificates and the Subclasses of
Class B  Certificates  as  classes  of  "regular  interests"  and the  Class 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  April  25,  2012  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,  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 Trust Administrator, if any; 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.

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 Trust Administrator or
          any Servicer for Periodic  Advances made by the Master Servicer or the
          Trust  Administrator  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 Trust
          Administrator  for any Periodic  Advances  determined in good faith to
          have become Nonrecoverable Advances;

               (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 Trust
          Administrator (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 Net
          Liquidation  Proceeds  allocable  to interest the amount of any unpaid
          Master  Servicing Fee or Servicing  Fee (as adjusted  pursuant to such
          Servicer's  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; and

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

     (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 Trust Administrator.

     (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 Trust Administrator shall, to the extent required by Section 8.15, make
such Periodic  Advance to the extent  provided  hereby,  provided that the Trust
Administrator  has previously  received the  certificate of the Master  Servicer
described in the following  sentence.  The Master  Servicer shall certify to the
Trust Administrator 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,  (iii) the amount that the Trust
Administrator  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 Trust
Administrator  or Master Servicer shall be deposited in the Certificate  Account
on the related  Distribution Date.  Notwithstanding  the foregoing,  neither the
Master Servicer nor the Trust Administrator will be obligated to make a Periodic
Advance that it reasonably  believes to be a Nonrecoverable  Advance.  The Trust
Administrator  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 Trust  Administrator
that such failure has occurred.  Upon receipt of such  certification,  the Trust
Administrator  shall  advance such funds and take such steps as are necessary to
pay such taxes or insurance premiums.

     (c) The Master Servicer and the Trust  Administrator 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 Trust Administrator 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 Trust
Administrator,  withdraw  from the  Certificate  Account  and remit to the Trust
Administrator  any  amounts  to which the Trust  Administrator  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 Trust  Administrator  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.  Trust Administrator 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  Trust  Administrator  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 Trust
Administrator.  The Trust Administrator  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 Trust Administrator and the Trust Administrator  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 Trust  Administrator  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 Trust Administrator
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 Trust Administrator to the Master Servicer or such Servicer,  as
appropriate.

     Upon written  certification  of the Master Servicer or the Servicer of such
Mortgage Loan, the Trust  Administrator  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 Trust  Administrator  and a  statement  as to the
reason such  documents or pleadings  are  required  and that the  execution  and
delivery  thereof by the Trust  Administrator  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 and Trust Administrator;
              Annual Compliance Statements.

     (a) Not  later  than 15 days  after  each  Distribution  Date,  the  Master
Servicer  shall deliver to the Trustee and the Trust  Administrator  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  Trust  Administrator  to  any
Certificateholder upon written request, provided such statement is delivered, or
caused to be delivered, by the Master Servicer to the Trust Administrator.

     (b) The  Master  Servicer  shall  deliver  to the  Trustee  and  the  Trust
Administrator  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 Trust Administrator to any  Certificateholder  upon written request provided
such certificate is delivered, or caused to be delivered, by the Master Servicer
to the Trust Administrator.

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 Trust  Administrator  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 Trust  Administrator shall have
no  further  responsibility  with  regard to such  Owner  Mortgage  Loan File or
Servicer  Mortgage  Loan  File.  Neither  the Trust  Administrator,  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  and the Trust
Administrator 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 and the Trust  Administrator
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 and the Trust  Administrator 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 and
the Trust  Administrator  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,  either the Trustee or the Trust Administrator 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,  the  Trustee  or the  Trust  Administrator,  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 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,  the
Trust  Administrator'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 Trust  Administrator  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 Trust  Administrator  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  and the Trust
Administrator  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 Trust Administrator on behalf of 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,  at its option,  to repurchase  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;  provided,  however,  that the Cut-Off Date Principal
Balances of the Mortgage Loans repurchased  pursuant to this provision shall not
exceed 2.5% of the Cut-Off  Date  Aggregate  Principal  Balance of the  Mortgage
Loans. 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  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 Trust  Administrator the certification  required by Section
3.04 and the Trust  Administrator  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 Trust Administrator  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 Trust Administrator shall have no further  responsibility with regard to
such Owner Mortgage Loan File or Servicer Mortgage Loan File.  Neither the Trust
Administrator,  the Master  Servicer nor any  Servicer,  acting on behalf of the
Trust  Administrator,  shall  provide  financing  from the  Trust  Estate to any
purchaser of a Mortgage Loan.

     The Master Servicer, on behalf of the Trust Administrator,  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.

     The Master  Servicer may enter into a special  servicing  agreement with an
unaffiliated  holder of 100%  Percentage  Interest  of a Class B  Subclass  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, the Trust Administrator 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 Trust Administrator is obligated to make an advance pursuant to Section 3.03
and (ii) the Trust Administrator 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 Trust  Administrator  shall
recommend  to the Trustee the  termination  of the Norwest  Servicing  Agreement
without the  recommendation of the Master Servicer and upon such  recommendation
the Trustee shall terminate the Norwest Servicing Agreement. The Master Servicer
shall indemnify the Trustee and the Trust  Administrator  and hold each 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 or the Trust Administrator in connection with termination of
such Servicing  Agreement at the direction of the Master Servicer.  In addition,
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 the termination of the Norwest Servicing Agreement as
provided  in the second  preceding  sentence.  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  Trust
Administrator, 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. 1934 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,  the
Class M Certificates  and the Class B-1 and Class B-2  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 Pool Distribution Amount will be applied
in the  following  amounts,  to the  extent  the  Pool  Distribution  Amount  is
sufficient therefor, in the manner and in the order of priority as follows:

     first, to the Subclasses of Class A Certificates (other than the Class A-PO
Certificates),  pro rata based upon their respective  Class A Subclass  Interest
Accrual  Amounts,  in an aggregate  amount up to the sum of the Class A Subclass
Interest Accrual Amounts with respect to such Distribution Date;

     second,  to the  Subclasses of Class A  Certificates  (other than the Class
A-PO Certificates), pro rata based upon their respective unpaid Class A Subclass
Interest  Shortfall  Amounts,  in an  aggregate  amount  up to  the  sum  of the
previously unpaid Class A Subclass Interest Shortfall Amounts;

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

     fourth,  to the Class A-PO  Certificates  in an amount up to the Class A-PO
Deferred  Amount from amounts  otherwise  distributable  (without regard to this
Paragraph  fourth)  first to the Class B-5  Certificates  pursuant to  Paragraph
twenty-second, below, second to the Class B-4 Certificates pursuant to Paragraph
nineteenth,  below,  third to the Class B-3  Certificates  pursuant to Paragraph
sixteenth,  below,  fourth to the Class B-2  Certificates  pursuant to Paragraph
thirteenth,  below,  fifth to the Class B-1  Certificates  pursuant to Paragraph
tenth below, and sixth to the Class M Certificates pursuant to Paragraph seventh
below;

     fifth,  to the Class M Certificates in an amount up to the Class M Interest
Accrual Amount with respect to such Distribution Date;

     sixth,  to the Class M Certificates  in an amount up to the Class
M Unpaid Interest Shortfall;

     seventh, to the Class M Certificates in an amount up to the Class M Optimal
Principal Amount; provided,  however, that the amount distributable to the Class
M Certificates pursuant to this Paragraph seventh will be reduced by the amount,
if any, that would have been distributable to the Class M Certificates hereunder
used to pay the Class A-PO  Deferred  Amount as  provided  in  Paragraph  fourth
above;

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

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

     tenth,  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 Paragraph tenth 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 A-PO Deferred Amount as provided in
Paragraph fourth above;

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

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

     thirteenth,  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 Paragraph thirteenth 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 A-PO Deferred Amount as provided in
Paragraph fourth above;

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

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

     sixteenth,  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 Paragraph sixteenth 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 A-PO Deferred Amount as provided in
Paragraph fourth above;

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

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

     nineteenth,  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 Paragraph nineteenth 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 A-PO Deferred Amount as provided in
Paragraph fourth above;

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

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

     twenty-second,  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 Paragraph  twenty-second 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  A-PO  Deferred  Amount  as
provided in Paragraph fourth above; and

     twenty-third, to the Holder of the Class A-R Certificate.

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

     In  addition,  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 A-R
Certificate.

     With  respect  to any  Distribution  Date,  the  amount  of  the  Principal
Adjustment,  if any,  attributable to any Class B Subclass will be allocated pro
rata based on principal  balance among the Class A Certificates  (other than the
Class A-WIO and Class A-PO Certificates), the Class M Certificates and any Class
B Subclass with a lower  numerical  designation  and the amount of the Principal
Adjustment,  if any,  attributable to the Class M Certificates will be allocated
to the Subclasses of Class A Certificates  (other than the Class A-WIO and Class
A-PO Certificates) pro rata based on the Class A Subclass Principal Balances.

     (b) The Class A-WIO Certificates are interest-only Certificates and are not
entitled to distributions in respect of principal.

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

     first,  to  the  Class  A-5  Certificates,  up to the  Class  A-5
Priority Amount;

     second,  to the  A-R  Certificate  until  the  Class  A  Subclass
Principal Balance thereof has been reduced to zero;

     third,  sequentially,  to the Class A-1, Class A-2, Class A-3 and Class A-4
Certificates,  in that order,  until the Class A Subclass  Principal  Balance of
each such Subclass has been reduced to zero; and

     fourth,  to the Class  A-5  Certificates,  without  regard to the Class A-5
Priority  Amount until the Class A Subclass  Principal  Balance thereof has been
reduced to zero.

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

     (d) (i) For  purposes  of  determining  whether the  Subclasses  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 M Fractional  Interest is less than the
          Original Class M Fractional Interest and the Class M Principal Balance
          is greater than zero,  the Class B-1,  Class B-2, Class B-3, Class B-4
          and  Class  B-5   Certificates   shall  not  be  eligible  to  receive
          distributions of principal; or

               (B) 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 and
          Class B-5 Certificates shall not be eligible to receive  distributions
          of principal; or

               (C) 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 and Class B-5
          Certificates  shall  not  be  eligible  to  receive  distributions  of
          principal; or

               (D) 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 and Class B-5 Certificates
          shall not be eligible to receive distributions of principal; or

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

     In the event that, on any Distribution Date prior to the Final Distribution
Date,  the  Class A  Subclass  Principal  Balance  of any  Subclass  of  Class A
Certificates  (other  than the Class  A-R  Certificate),  the Class M  Principal
Balance of the Class M Certificates or the Class B Subclass Principal Balance of
any Subclass of Class B Certificates  or the notional  amount of the Class A-WIO
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 Trust Administrator. The Trust Administrator will then send
a notice to each  Certificateholder of such Class or Subclass with a copy to the
Certificate  Registrar,  specifying that the final  distribution with respect to
such  Class or  Subclass  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  Trust  Administrator  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
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 "Non-U.S.
Person" is an individual, corporation,  partnership or other person other than a
citizen or resident of the United States,  a  corporation,  partnership or other
entity  created or  organized  in or under the laws of the United  States or any
political  subdivision  thereof,  an estate  that is  subject  to United  States
federal  income tax regardless of the source of its income or a trust if (i) for
taxable  years  beginning  after  December 31, 1996 (or for taxable years ending
after August 20, 1996, if the trustee has made an applicable election),  a court
within  the  United  States is able to  exercise  primary  supervision  over the
administration of such trust, and one or more United States fiduciaries have the
authority  to control all  substantial  decisions  of such trust or (ii) for all
other taxable  years,  such trust is subject to United States federal income tax
regardless of the source of its income.

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) will be allocated as
follows:

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

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

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

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

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

     sixth, to the Class M Certificates  until the Class M Principal Balance has
been reduced to zero; and

     seventh,  concurrently,  to the Class A Certificates  (other than the Class
A-PO  Certificates) and Class A-PO  Certificates,  pro rata, based on the Non-PO
Fraction and the PO Fraction, respectively.

     This allocation of Realized  Losses will be effected  through the reduction
of the applicable Class's or Subclass'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  Mortgage  Loan  allocable  to the  Class  A-PO
Certificates 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
remaining after allocation to the Class A-PO Certificates in accordance with the
preceding  sentence  shall be allocated pro rata among the Class A  Certificates
(other  than the Class  A-PO  Certificates),  Class M  Certificates  and Class B
Certificates  based on the Class A Non-PO Principal  Balance,  Class M Principal
Balance and the Class B Principal Balance, respectively. Any such loss allocated
to the Class A Certificates  shall be allocated on the subsequent  Determination
Date among the  outstanding  Subclasses of Class A Certificates  (other than the
Class  A-PO   Certificates)  in  accordance  with  the  Class  A  Subclass  Loss
Percentages as of such Determination  Date. Any such loss allocated to the Class
B Certificates  shall be allocated pro rata among the outstanding  Subclasses of
Class B Certificates based on their Class B Subclass Principal Balances.

     (c) Any Realized Losses  allocated to a Subclass of Class A Certificates or
Class B Certificates or to the Class M Certificates  pursuant to Section 4.02(a)
or Section 4.02(b) shall be allocated among the Certificates of such Subclass or
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 which had  previously  been allocated as a Realized
Loss to any Subclasses of Class A Certificates,  the Class M Certificates or any
Subclasses of Class B Certificates,  each outstanding Class or Subclass to which
such Realized Loss had previously  been allocated shall be entitled to its share
(with respect to the Class A-PO  Certificates,  based on the PO Fraction of such
Mortgage  Loan and,  with  respect to the Class A  Certificates  (other than the
Class A-PO Certificates),  Class M 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 or Subclass on the  Distribution  Date in the month following the month in
which  such  recovery  is  received.  When the  Principal  Balance of a Class or
Subclass of Certificates  has been reduced to zero, such Class or Subclass 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 or Subclass in accordance with the preceding provisions,  each outstanding
Class  or  Subclass  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 or Subclass.

     (e) The interest  portion of Excess  Special  Hazard  Losses,  Excess Fraud
Losses  and  Excess  Bankruptcy  Losses  shall be  allocated  among  the Class A
Certificates,  Class M Certificates and Class B Certificates,  pro rata based on
the Class A Interest Accrual Amount, the Class M Interest Accrual Amount and the
Class B Interest  Accrual  Amount for the  related  Distribution  Date,  without
regard to any reduction  pursuant to this  sentence.  Any such loss allocated to
the Class A Certificates shall be allocated among the outstanding  Subclasses of
Class A  Certificates  (other than the Class A-PO  Certificates)  based on their
Class A Subclass  Interest  Percentages.  Any such loss allocated to the Class B
Certificates  will be  allocated  among the  outstanding  Subclasses  of Class B
Certificates based on their Class B Subclass Interest Percentages.  In addition,
after the Class M Principal  Balance and the Class B Principal Balance have been
reduced to zero,  the  interest  portion of Realized  Losses  (other than Excess
Special Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses) will be
allocated among the outstanding  Subclasses of Class A Certificates  (other than
the  Class  A-PO  Certificates)   based  on  their  Class  A  Subclass  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 Trust  Administrator 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 Trust
Administrator to execute and deliver to the Trust Administrator an instrument in
which such Paying  Agent  agrees with the Trust  Administrator  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 Trust  Administrator  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 Trust Administrator,  forthwith pay to
          the  Trust  Administrator  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) 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  Trust
Administrator,  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 Trust
              Administrator and the Seller.

     Concurrently with each distribution pursuant to Section 4.01(d), 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 A
     Subclass  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 Subclass
     of Class A  Certificates  allocable  to  interest,  (b) the  amount  of the
     Current  Class A Interest  Distribution  Amount  allocated  to each Class A
     Subclass,  (c) any Class A Subclass Interest Shortfall Amounts arising with
     respect to such Distribution Date and any remaining Class A Subclass Unpaid
     Interest  Shortfall  with respect to each  Subclass  after giving effect to
     such distribution,  (d) the amount of any Non-Supported  Interest Shortfall
     allocated to each Class A Subclass for such  Distribution  Date and (e) the
     interest  portion of Excess Special Hazard Losses,  Excess Fraud Losses and
     Excess  Bankruptcy  Losses allocated to each Subclass for such Distribution
     Date;

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

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

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

          (vi) (a) the  amount of such  distribution  to Holders of each Class B
     Subclass  allocable  to  interest,  (b) the amount of the  Current  Class B
     Interest  Distribution  Amount  allocated  to each Class B Subclass and the
     Pass-Through  Rate  applicable to such  Distribution  Date, (c) any Class B
     Subclass   Interest   Shortfall   Amounts  arising  with  respect  to  such
     Distribution  Date  and any  remaining  Class B  Subclass  Unpaid  Interest
     Shortfall with respect to each Class B Subclass after giving effect to such
     distribution,  (d)  the  amount  of any  Non-Supported  Interest  Shortfall
     allocated to each Class B Subclass 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 B  Subclass  for such
     Distribution Date;

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

          (viii) the number of Mortgage  Loans  outstanding  as of the preceding
     Determination Date;

          (ix) the Class A  Principal  Balance,  the Class A Subclass  Principal
     Balance of each  Subclass  of Class A  Certificates,  the Class M Principal
     Balance,  the Class B Principal Balance and the Class B Subclass  Principal
     Balance  of each  Subclass  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;

          (x) the Adjusted  Pool Amount,  the Adjusted Pool Amount (PO Portion),
     the  Pool  Scheduled  Principal  Balance  of the  Mortgage  Loans  for such
     Distribution  Date and the  aggregate  Scheduled  Principal  Balance of the
     Discount Mortgage Loans for such Distribution Date;

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

          (xii) the  Class 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);

          (xiii)  the  Class  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);

          (xiv) the  Class M  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);

          (xv) the Class M 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);

          (xvi) the Class  B-1,  Class B-2,  Class B-3,  Class B-4 and Class B-5
     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);

          (xvii) the Class B-1,  Class B-2,  Class B-3,  Class B-4 and Class B-5
     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);

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

          (xix) the number and  aggregate  principal  balances  of the  Mortgage
     Loans in foreclosure as of the preceding Determination Date;

          (xx) the book value of any real estate acquired through foreclosure or
     grant of a deed in lieu of foreclosure;

          (xxi) 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;

          (xxii)  the  principal  and  interest   portions  of  Realized  Losses
     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;

          (xxiii) the aggregate  amount of Bankruptcy  Losses  allocated to each
     Subclass of Class B Certificates or, following the reduction of the Class B
     Principal Balance to zero, solely to the Class M Certificates in accordance
     with Section 4.02(a) since the Relevant Anniversary;

          (xxiv) the amount by which the Class B Subclass  Principal  Balance of
     each Subclass of Class B Certificates and the Class M Principal Balance has
     been  reduced  as  a  result  of  Realized  Losses  allocated  as  of  such
     Distribution Date;

          (xxv) the unpaid  principal  balance of any 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;

          (xxvi) 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;

          (xxvii) in the case of the Class A-WIO  Certificates,  the Class A-WIO
     Notional  Amount and Class A-WIO  Pass-Through  Rate for such  Distribution
     Date;

          (xxviii) the Class A-PO Deferred Amount, if any; and

          (xxix) 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 Trust  Administrator,
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 Subclass of Class A
Certificates  pursuant  to  clauses  (i)  and  (ii)  above,  with  the  Class  M
Certificates  pursuant  to clauses  (iii) and (iv)  above and with  respect to a
Class B Subclass  pursuant to clauses (v) and (vi) above,  the amounts  shall be
expressed as a dollar amount per Class A, Class M or Class B Certificate  (other
than the Class A-WIO and Class A-R Certificates) with a $1,000 Denomination, and
as a dollar amount per Class A-R Certificate  with a $50  Denomination  and as a
dollar amount per Class A-WIO Certificate with a 1% 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,  the information set forth in clauses (iii)
and (iv)(a) above in the case of a Class M Certificateholder and the information
contained  in  clauses  (v)  and  (vi)(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 Trust
Administrator,  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 Class A Subclass  Distribution  Amount with
respect to each Class A Subclass,  the Class M Distribution Amount and the Class
B Subclass  Distribution  Amount  with  respect to each  Class B  Subclass.  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 Trust  Administrator  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  M or  Class  B  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 Trust  Administrator
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).


<PAGE>


                                    ARTICLE V

                                THE CERTIFICATES

Section 5.01. The Certificates.

     (a) The Class A, Class M and Class B  Certificates  shall be issued only in
minimum  Denominations  of a Single  Certificate  and,  except for the Class A-R
Certificate,  integral  multiples of $1,000 in excess  thereof or 1%  Percentage
Interest in the case of the Class A-WIO Certificates (except, if necessary,  for
one  Certificate of each Class or Subclass (other than the Class A-WIO and Class
A-R  Certificates)  that evidences one Single  Certificate  plus such additional
principal  portion as is required in order for all Certificates of such Class or
Subclass to equal the aggregate  Original  Class A Subclass  Principal  Balance,
Original  Class M Principal  Balance or the aggregate  Original Class B Subclass
Principal  Balance of such Class or Subclass,  as the case may be), and shall be
substantially  in the respective forms set forth as Exhibits A-1, A-2, A-3, A-4,
A-5,  A-PO,  A-WIO,  A-R,  B-1,  B-2,  B-3,  B-4, B-5, C, and D (reverse side of
Certificates)  hereto. On original issue the Certificates  shall be executed and
delivered  by the Trust  Administrator  to or upon the order of the Seller  upon
receipt by the Trust  Administrator or the Custodian of the documents  specified
in Section 2.01. The aggregate principal portion evidenced by the Class A, Class
M 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  Trust  Administrator  by any
Responsible  Officer  thereof.  Certificates  bearing  the  manual or  facsimile
signatures of individuals  who were at any time the proper officers of the Trust
Administrator  shall  bind the  Trust  Administrator  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 Trust Administrator,  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 Trust  Administrator 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.  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 Trust  Administrator 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 Trust Administrator at the Corporate Trust Office.

Section 5.02. Registration of Transfer and Exchange of Certificates.

     (a) The Trust Administrator 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  Trust  Administrator  shall  provide  for the  registration  of
Certificates  and of transfers and exchanges of Certificates as herein provided.
The Trust Administrator 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 Trust  Administrator  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 or Subclass.

     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 or Subclass upon surrender
of the  Certificates to be exchanged at any such office or agency.  Whenever any
Certificates  are so surrendered  for exchange,  the Trust  Administrator  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 Trust  Administrator)  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 Trust  Administrator  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 Trust Administrator or the Authenticating Agent
in accordance with their standard procedures.

     (b) No transfer of a Class B-3, Class B-4 or Class B-5 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
Trust  Administrator  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 B-3, Class B-4
or  Class  B-5  Certificateholder  to  deliver  a  written  Opinion  of  Counsel
acceptable to and in form and substance  satisfactory to the Trust Administrator
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 Trust  Administrator,  the Trustee,  the
Seller or the Master Servicer,  and (ii) the Trust  Administrator  shall require
the transferee (other than of a Class A-WIO Certificate where such transferee is
an  affiliate  of the Seller and such  transfer is made on the Closing  Date) to
execute an investment  letter in the form of Exhibit J hereto  certifying to the
Seller and the Trust  Administrator the facts  surrounding such transfer,  which
investment  letter  shall  not be an  expense  of the Trust  Administrator,  the
Trustee, the Seller or the Master Servicer. The Holder of a Class B-3, Class B-4
or Class B-5 Certificate desiring to effect such transfer shall, and does hereby
agree to, indemnify the Trust Administrator, 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 Trust
Administrator  is under an  obligation  to register the Class B-3,  Class B-4 or
Class B-5 Certificates under said Act or any other securities law.

     (c) No transfer of a Class A-WIO Certificate (other than to an affiliate of
the Seller on the Closing  Date),  or a Class M or Class B Certificate  shall be
made unless the Trust  Administrator  shall have  received (i) a  representation
letter  from the  transferee  in the form of Exhibit J hereto,  in the case of a
Class A-WIO,  Class B-3, Class B-4 or Class B-5  Certificate,  or in the form of
Exhibit K hereto,  in the case of a Class M, Class B-1 or Class B-2 Certificate,
to the effect that either (a) such transferee is not an employee benefit plan or
other retirement arrangement subject to the fiduciary responsibility  provisions
of ERISA or Code Section  4975,  or a  governmental  plan, as defined in Section
3(32) of ERISA,  or 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 Trust  Administrator,  the  Trustee,  the  Seller or the  Master
Servicer or (b) (other than with respect to a Class A-WIO  Certificate)  if such
transferee  is an  insurance  company,  the source of funds used to purchase the
Class M or 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)) and 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  or (ii) in the case of any  such  Class  A-WIO,  Class M 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 Trust Administrator
and the Seller to the effect that the  purchase or holding of such Class  A-WIO,
Class M 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 Trust
Administrator,  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 Trust  Administrator,  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 Trust Administrator,  the Trustee,
the  Seller  or the  Master  Servicer.  The  Class  A-WIO,  Class M 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 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 A-R Certificate in connection
with the  conduct  of a trade or  business  within  the  United  States  and has
furnished the transferor and the Trust  Administrator 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 Trust  Administrator  an opinion  of a  nationally
recognized  tax  counsel  to the  effect  that the  transfer  of the  Class  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 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 Trust Administrator shall not execute, and
shall not authenticate (or cause the  Authenticating  Agent to authenticate) and
deliver,  a new Class 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 Trust  Administrator  shall accept a
surrender for transfer or registration of transfer, or register the transfer of,
the Class A-R  Certificate,  unless the  transferor  shall have  provided to the
Trust Administrator 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  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
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 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 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 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 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 such Class 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 Class A-R  Certificate,  and (ii) the Master
Servicer agrees to furnish to the Internal Revenue Service and to any transferor
of the  Class 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 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 Trust Administrator
or the  Authenticating  Agent, or the Trust  Administrator 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 Trust  Administrator 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  Trust
Administrator  or the  Authenticating  Agent  that  such  Certificate  has  been
acquired by a bona fide  purchaser,  the Trust  Administrator  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 or  Subclass.  Upon  the  issuance  of any new
Certificate  under this  Section,  the Trust  Administrator  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 Trust  Administrator  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 Trust Administrator,
the Certificate Registrar and any agent of the Seller, the Master Servicer,  the
Trustee,  the Trust  Administrator  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 Trust Administrator,  the Certificate  Registrar nor
any  agent  of  the  Seller,  the  Master  Servicer,   the  Trustee,  the  Trust
Administrator,  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 Trust Administrator is not acting as Certificate Registrar,  the
Certificate  Registrar  shall  furnish  or cause to be  furnished  to the  Trust
Administrator,  within 15 days after receipt by the  Certificate  Registrar of a
request by the Trust Administrator in writing, a list, in such form as the Trust
Administrator  may  reasonably  require,  of  the  names  and  addresses  of the
Certificateholders of each Class or Subclass as of the most recent Record Date.

     (b)  If  five  or  more  Certificateholders  (hereinafter  referred  to  as
"applicants") apply in writing to the Trust Administrator,  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  Trust  Administrator  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
Trust Administrator. 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 Trust  Administrator is
not the Certificate  Registrar,  the Trust  Administrator 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,  the Trust
Administrator and the Trustee that neither the Seller, the Master Servicer,  the
Certificate  Registrar,  the Trust  Administrator  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 Trust Administrator 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 Trust  Administrator
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 Trust  Administrator  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 Trust Administrator 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  Subclass of Book-Entry
Certificates  advise the Trust  Administrator  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 Trust  Administrator  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 Trust  Administrator  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 Trust  Administrator  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,  the Trustee nor the Trust Administrator 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 Trust  Administrator  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,  other than any loss,  liability or expense  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, Class M 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 and
the Trust  Administrator.  No such resignation  shall become effective until the
Trustee,  the Trust Administrator 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 the Trust  Administrator,
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 or the Trust  Administrator  (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 and the
Trust Administrator,  in the exercise of its reasonable  judgment,  and executes
and delivers to the Trustee and the Trust  Administrator  an agreement,  in form
and   substance   reasonably   satisfactory   to  the   Trustee  and  the  Trust
Administrator,  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, the Trust Administrator 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, Trust Administrator and 
               Seller by Master Servicer.

     The Master  Servicer  shall  indemnify and hold  harmless the Trustee,  the
Trust  Administrator  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,  the Trust  Administrator 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.


<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  FHMLC,  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 the Trust  Administrator (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 Trust  Administrator  on behalf of the Trustee pursuant to and under this
Section, subject to the provisions of Section 7.05; and, without limitation, the
Trust  Administrator on behalf of 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 Trust  Administrator  and 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 Trust Administrator
on behalf of 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 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  trusts  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  or the  Trust  Administrator  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 or Trust  Administrator  may, but
need not if the Trustee or Trust Administrator, as the case may be, 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 or the Trust  Administrator,  the
Trustee or the Trust  Administrator,  as the case may be, 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. Trust Administrator to Act; Appointment of Successor.

     When the Master Servicer receives notice of termination pursuant to Section
7.01 or the Trustee or the Trust  Administrator  receives the resignation of the
Master Servicer evidenced by an Opinion of Counsel pursuant to Section 6.04, the
Trust  Administrator  on behalf of 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 Trust  Administrator  is  succeeding  to the Master  Servicer  as the Master
Servicer, as compensation therefor, the Trust Administrator 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  Trust
Administrator  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 Trust Administrator 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 Trust  Administrator  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  Trust
Administrator  is  required  to  solicit  bids  as  provided  above,  the  Trust
Administrator 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 Trust  Administrator  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 Trust  Administrator  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
Trust Administrator 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 Trust  Administrator  to the Master Servicer at the time of
such sale, transfer and assignment to the Master Servicer's successor. The Trust
Administrator  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 Trust  Administrator  and any  successor
servicer  in  effecting  the  termination  of the  Master  Servicer's  servicing
responsibilities  and rights  hereunder  and shall  promptly  provide  the Trust
Administrator 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 Trust
Administrator  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 Trust  Administrator  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 Trust
Administrator)  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 Trust Administrator shall
give prompt  written notice thereof to  Certificateholders  at their  respective
addresses appearing in the Certificate  Register.  The Trust Administrator shall
also,  within 45 days after the  occurrence of any Event of Default known to the
Trust Administrator,  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 AND THE TRUST ADMINISTRATOR

Section 8.01. Duties of Trustee and Trust Administrator.

     The  Trustee and the Trust  Administrator,  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 and the Trust  Administrator,
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 and the Trust  Administrator,  upon receipt of all resolutions,
certificates,   statements,   opinions,  reports,  documents,  orders  or  other
instruments  furnished  to the  Trustee and the Trust  Administrator,  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  and  the  Trust
Administrator  shall not be  responsible  for the  accuracy  or  content  of any
certificate,  statement,  instrument, report, notice or other document furnished
by the Servicers pursuant to Articles III, IV and IX.

     No  provision of this  Agreement  shall be construed to relieve the Trustee
and the Trust Administrator 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  and the  Trust  Administrator  shall  be
     determined solely by the express provisions of this Agreement,  the Trustee
     and the Trust  Administrator 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 the Trust  Administrator  and, in the
     absence  of  bad  faith  on  the  part  of  the   Trustee   and  the  Trust
     Administrator,  the Trustee and the Trust  Administrator  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 the Trust Administrator,  and conforming to the requirements of
     this Agreement;

          (ii) The Trustee and the Trust  Administrator  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 and the Trust  Administrator,  or exercising any trust or power
     conferred  upon  the  Trustee  and  the  Trust  Administrator,  under  this
     Agreement; and

          (iii) The Trustee and the Trust  Administrator shall not be liable for
     any  error  of  judgment  made in good  faith  by any of  their  respective
     Responsible  Officers,  unless it shall be proved  that the  Trustee or the
     Trust  Administrator 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 or the Trust  Administrator 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 and the Trust Administrator.

     Except as otherwise provided in Section 8.01:

          (i) Each of the Trustee and the Trust Administrator may 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;

          (ii) Each of the Trustee and the Trust  Administrator may consult with
     counsel,   and  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 Opinion
     of Counsel;

          (iii)  Neither of the  Trustee  nor the Trust  Administrator  shall 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; and

          (iv) Each of the Trustee and the Trust  Administrator  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. Neither Trustee nor Trust Administrator 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, neither the Trustee nor
the Trust  Administrator shall 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  or the  Trust  Administrator  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 or the Trust Administrator, not reasonably assured
to the Trustee or the Trust  Administrator by the security afforded to it by the
terms of this  Agreement,  the  Trustee or the Trust  Administrator  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 or the Trust Administrator, shall
be repaid by the Master Servicer upon demand.

Section 8.04. Neither Trustee nor Trust Administrator Liable for
              Certificates or 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 neither the Trustee nor the Trust  Administrator
assumes  responsibility  as to the correctness of the same. The Trustee makes no
representation  for the  correctness  of the same.  Neither  the Trustee nor the
Trust  Administrator  makes any 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,   neither  the  Trustee  nor  the  Trust
Administrator  shall 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 and Trust Administrator May Own Certificates.

     Each of the Trustee,  the Trust Administrator 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,  Trust
Administrator or such agent.

Section 8.06. The Master Servicer to Pay Fees and Expenses.

     The Master Servicer  covenants and agrees to pay to each of the Trustee and
the Trust Administrator from time to time, and each of the Trustee and the Trust
Administrator 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 or the Trust  Administrator,  as the
case may be, and the Master  Servicer  will pay or reimburse  the Trustee or the
Trust  Administrator,  as the case may be, 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.

     Each of the  Trustee  and the Trust  Administrator  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  or the Trust  Administrator  shall
cease to be eligible in accordance  with the  provisions  of this Section,  such
entity shall resign  immediately in the manner and with the effect  specified in
Section 8.08.

Section 8.08. Resignation and Removal.

     Either of the Trustee or the Trust Administrator 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  or  Trust
Administrator,  as the  case  may  be,  may  petition  any  court  of  competent
jurisdiction for the appointment of a successor trustee or trust administrator.

     If at any time the  Trustee or the Trust  Administrator  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 or the Trust  Administrator  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 the Trust  Administrator  or of the  property  or
affairs  of  the  Trustee  or  the  Trust   Administrator  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/or the Trust
Administrator,  as the case may be,  and  appoint  a  successor  trustee  and/or
successor trust administrator by written instrument,  in duplicate,  one copy of
which  instrument  shall be delivered to the Trustee or Trust  Administrator  so
removed and one copy to the successor trustee or successor trust  administrator,
as the case may be.

     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/or the Trust  Administrator 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 or the Trust  Administrator  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  or  successor  trust  administrator  appointed  as
provided in Section 8.08 shall  execute,  acknowledge  and deliver to the Master
Servicer and to its predecessor trustee or trust administrator,  as the case may
be, an  instrument  accepting  such  appointment  hereunder,  and  thereupon the
resignation or removal of the predecessor  trustee or trust  administrator 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  or trust  administrator,  as the  case  may be,  herein.  The
predecessor  trustee or trust  administrator  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 or successor trust  administrator,  as the case may be, 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 or trust
administrator  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 or trust
administrator,  as the case may be, the successor trustee or trust administrator
shall cause such notice to be mailed at the expense of the Master Servicer.

Section 8.10. Merger or Consolidation.

     Any Person into which either the Trustee or the Trust  Administrator 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 or the Trust  Administrator  shall be a
party,  or any Person  succeeding  to the business of such entity,  shall be the
successor of the Trustee or Trust Administrator,  as the case may be, 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 or the Trust  Administrator,  as the case
may be,  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 or the Trust Administrator, as the case may be.

Section 8.11. Authenticating Agent.

     The Trust Administrator may appoint an Authenticating Agent, which shall be
authorized  to act  on  behalf  of the  Trust  Administrator  in  authenticating
Certificates. Wherever reference is made in this Agreement to the authentication
of  Certificates  by  the  Trust  Administrator  or  the  Trust  Administrator's
countersignature,  such reference shall be deemed to include  authentication  on
behalf of the Trust Administrator by the Authenticating  Agent and a certificate
of  authentication  executed  on  behalf  of  the  Trust  Administrator  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 Trust
Administrator 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 Trust  Administrator,
the Seller  and the Master  Servicer.  The Trust  Administrator  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 Trust Administrator  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 Trust  Administrator.  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 Trust  Administrator 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 Trust Administrator,  by entering into a Custodial Agreement. Subject to
this Article VIII,  the Trust  Administrator  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,  the Trust  Administrator  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 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 action
required by law to be performed directly by the Trust  Administrator,  the Trust
Administrator,  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, an election 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 Trust Administrator 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
Forms SS-4 and 8811 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 A-1, Class
A-2,  Class A-3,  Class A-4,  Class A-5,  Class A-PO,  Class A-WIO and Class A-R
Certificates,  the Class M Certificates and the Class B-l, Class B-2, Class B-3,
Class B-4 and Class B-5  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 and the Trust  Administrator  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 A-R  Certificateholder  for such purpose (or if
the Master Servicer is not so permitted, the Holder of the Class 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,  the Trust  Administrator  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 and Subclass of  Certificates
and the Mortgage Loans in the aggregate. Thereafter, the Seller shall provide to
the Master Servicer, the Trust Administrator or the Trustee, as the case may be,
promptly upon request therefor, any such additional information or data that the
Master Servicer, the Trust Administrator 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,
the Trust  Administrator  or the  Trustee,  as the case may be, for any  losses,
liabilities,  damages,  claims or  expenses  of the Master  Servicer,  the Trust
Administrator or the Trustee arising from any errors or  miscalculations  by the
Master Servicer, the Trust Administrator 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,  the  Trust
Administrator or the Trustee,  as the case may be, on a timely basis. The Master
Servicer hereby indemnifies the Seller, the Trust  Administrator and the Trustee
for any losses,  liabilities,  damages,  claims or  expenses of the Seller,  the
Trust  Administrator 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 Trust Administrator prepares any of the federal, state and local tax returns
of the REMIC as described above, the Trust Administrator  hereby indemnifies the
Seller,  the  Master  Servicer  and the  Trustee  for any  losses,  liabilities,
damages,  claims or expenses of the Seller,  the Master  Servicer or the Trustee
arising  from  the  Trust  Administrator'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,  the Trust Administrator 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,  the Trust  Administrator  or the  Trustee 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 Trust  Administrator  shall make a Periodic  Advance as
required by Section  3.03 hereof;  provided,  however,  the Trust  Administrator
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  Trust  Administrator  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.


<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, the Trust Administrator and the Trustee created
hereby  (other than the  obligation of the Trust  Administrator  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  Trust
Administrator  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  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 11.24. In the case of any purchase by the Seller pursuant to said clause
(i),  the Seller  shall  provide to the Trust  Administrator  the  certification
required by Section 3.04 and the Trust  Administrator  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 Trust  Administrator
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 Trust Administrator (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 Trust  Administrator
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  Trust
Administrator  therein  specified.  If the Master  Servicer is obligated to give
notice to  Certificateholders  as  aforesaid,  it shall give such  notice to the
Trust  Administrator  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  Trust
Administrator 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 Subclasses of Class A Certificates, the respective
Class A Subclass  Principal  Balance  together with any related Class A Subclass
Unpaid  Interest  Shortfall  and one month's  interest in an amount equal to the
respective  Class A Subclass  Interest  Accrual  Amount,  (ii) as to the Class M
Certificates,  the Class M Principal  Balance  together with any related Class M
Unpaid Interest  Shortfall and one month's  interest at the Class M Pass-Through
Rate on the Class M Principal  Balance,  (iii) as to the  Subclasses  of Class B
Certificates,  the respective Class B Subclass  Principal  Balance together with
any related Class B Subclass Unpaid Interest  Shortfall and one month's interest
in an amount equal to the respective  Class B Subclass  Interest  Accrual Amount
and (iv) as to the Class 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 Trust  Administrator  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 Trust  Administrator  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 Trust
Administrator  (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 Trust Administrator 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 Trust  Administrator 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  Trust
     Administrator  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,  the  Trust  Administrator  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  and the Trust  Administrator  have  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, the Trust Administrator 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 or Subclass 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 or  Subclass;  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 or Subclass in a manner  other than as  described  in
clause (i) hereof without the consent of Holders of  Certificates  of such Class
or  Subclass  evidencing,  as  to  such  Class  or  Subclass,  Voting  Interests
aggregating  not less than 66-2/3% or (iii) reduce the  aforesaid  percentage of
Certificates  of any Class or  Subclass  the  Holders of which are  required  to
consent  to any such  amendment,  without  the  consent  of the  Holders  of all
Certificates of such Class or Subclass then outstanding.

     Notwithstanding  any  contrary  provision  of this  Agreement,  neither the
Trustee  nor the Trust  Administrator  shall  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 Trust Administrator 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 Trust Administrator 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,  the  Trust  Administrator  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 Trust Administrator.

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 Trust Administrator,  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 Trust  Administrator  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 Trust  Administrator  to
institute such action, suit or proceeding in its own name as Trust Administrator
hereunder  and shall have  offered to the Trust  Administrator  such  reasonable
indemnity as it may require  against the cost,  expenses and  liabilities  to be
incurred therein or thereby, and the Trust Administrator,  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 Trust Administrator,  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 Trust
Administrator  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, (iii)
in the case of the Trustee,  to the Corporate  Trust Office and (iv) in the case
of the Trust Administrator, 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 or the Trust  Administrator,  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,   the  Trust
Administrator 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 Trust  Administrator,  such 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 Trust  Administrator 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  or  the  Trust
     Administrator pursuant to Section 8.08;

          (iii) the  appointment of a successor  trustee or trust  administrator
     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. Class A Fixed Pass-Through Rate.

     The Class A Fixed Pass-Through Rate is 7.00% per annum.

Section 11.02. Cut-Off Date.

     The Cut-Off Date for the Certificates is March 1, 1997.

Section 11.03. Cut-Off Date Aggregate Principal Balance.

     The Cut-Off Date Aggregate Principal Balance is $149,953,144.33.

Section 11.04. Original Class A Percentage.

     The Original Class A Percentage is 97.48237073%.

Section 11.05. Original Class A Subclass Principal Balances.

     As to the  following  Subclasses  of  Class  A  Certificates,  the  Class A
Subclass Principal Balance of such Subclass as of the Cut-Off Date, as follows:

                                             Original Class A
     Class A Subclass                        Subclass Principal Balance
     ----------------                        --------------------------
       Class A-1                                 $20,600,000.00
       Class A-2                                 $66,361,000.00
       Class A-3                                 $12,896,000.00
       Class A-4                                 $ 8,097,000.00
       Class A-5                                 $37,228,000.00
       Class A-PO                                $ 1,021,548.89
       Class A-R                                 $        50.00

Section 11.06. Original Class A Non-PO Principal Balance.

     The Original Class A Non-PO Principal Balance is $145,182,050.00.

Section 11.07. Original Subordinated Percentage.

     The Original Subordinated Percentage is 2.51762927%.

Section 11.08. Original Class M Percentage.

     The Original Class M Percentage is 1.00717379%.

Section 11.09. Original Class M Principal Balance.

     The Original Class M Principal Balance is $1,500,000.00.

Section 11.10. Original Class M Fractional Interest.

     The Original Class M Fractional Interest is 1.51045547%.

Section 11.11. Original Class B-1 Percentage.

     The Original Class B-1 Percentage is 0.50358690%.

Section 11.12. Original Class B-2 Percentage.

     The Original Class B-2 Percentage is 0.25112200%.

Section 11.13. Original Class B-3 Percentage.

     The Original Class B-3 Percentage is 0.35251083%.

Section 11.14. Original Class B-4 Percentage.

     The Original Class B-4 Percentage is 0.20143476%.

Section 11.15. Original Class B-5 Percentage.

     The Original Class B-5 Percentage is 0.20180099%.

Section 11.16. Original Class B Principal Balance.

     The Original Class B Principal Balance is $2,249,545.44.

Section 11.17. [INTENTIONALLY OMITTED]

Section 11.18. Original Class B Subclass Principal Balances.

     As to any Class B Certificate,  the Class B Subclass  Principal  Balance of
such Subclass as of the Cut-Off Date, is as follows:

                                             Original Class B
     Class B Subclass                        Subclass Principal Balance
     ----------------                        --------------------------
       Class B-1                                 $750,000.00
       Class B-2                                 $374,000.00
       Class B-3                                 $525,000.00
       Class B-4                                 $300,000.00
       Class B-5                                 $300,545.44

Section 11.19. Original Class B-1 Fractional Interest.

     The Original Class B-1 Fractional Interest is 1.00686857%.

Section 11.20. Original Class B-2 Fractional Interest.

     The Original Class B-2 Fractional Interest is 0.75574658%.

Section 11.21. Original Class B-3 Fractional Interest.

     The Original Class B-3 Fractional Interest is 0.40323575%.

Section 11.22. Original Class B-4 Fractional Interest.

     The Original Class B-4 Fractional Interest is 0.20180099%.

Section 11.23. Closing Date.

     The Closing Date is March 27, 1997.

Section 11.24. 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 Pool  Scheduled  Principal
Balance of the Mortgage Loans being less than $14,995,314.43 (10% of the Cut-Off
Date Aggregate Principal Balance) at the time of any such purchase.

Section 11.25. Wire Transfer Eligibility.

     With  respect  to the Class A  Certificates  (other  than the  Class  A-WIO
Certificates),  the  minimum  Denomination  eligible  for wire  transfer on each
Distribution Date is $5,000,000.  With respect to the Class A-WIO  Certificates,
the minimum Denomination eligible for wire transfer on each Distribution Date is
25% Percentage  Interest.  The Class A-PO,  Class A-R, Class M, Class B-1, Class
B-2, Class B-3, Class B-4 and Class B-5  Certificates  are not eligible for wire
transfer.

Section 11.26. Single Certificate.

     A Single Certificate for each Subclass of Class A Certificates  (other than
the Class A-WIO and Class A-R  Certificates),  the Class M Certificates  and the
Class B  Certificates  (other  than the  Class  B-3,  Class  B-4,  and Class B-5
Certificates)  represents a $100,000 Denomination.  A Single Certificate for the
Class A-WIO Certificates represents a Denomination of 33% Percentage Interest. A
Single Certificate for the Class A-R Certificate  represents a $50 Denomination.
The Class B-3 Certificates  will be issued in minimum  denominations of $250,000
and integral multiples of $1,000 in excess thereof. A Single Certificate for the
each of the Class B-4 and Class B-5 Certificates represents a Denomination equal
to the Original Class B Subclass Principal Balance of each such Subclass.

Section 11.27. Servicing Fee Rate.

     The rate used to calculate the Servicing Fee is equal to 0.250% per annum.

Section 11.28. Master Servicing Fee Rate.

     The rate used to calculate the Master  Servicing Fee for each Mortgage Loan
is 0.016% per annum.



<PAGE>


     IN  WITNESS  WHEREOF,   the  Seller,   the  Master   Servicer,   the  Trust
Administrator  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 OF NORTH 
                                       CAROLINA
                                         as Trust Administrator

                                       By:---------------------------------
                                          Name:
                                          Title:

Attest:
By:----------------------------------
Name:--------------------------------
Title:-------------------------------


                                       FIRSTAR TRUST COMPANY
                                         as Trustee

                                       By:---------------------------------
                                          Name:
                                          Title:

                                       By:---------------------------------
                                          Name:
                                          Title:



<PAGE>



STATE OF NEW YORK   )
                    ss.:
COUNTY OF NEW YORK  )

     On this 27th day of March,  1997, before me, a notary public in and for the
State of New York,  personally B. David  Bialzak,  known to me who,  being by me
duly sworn, did depose and say that he resides at Frederick,  Maryland;  that he
is a  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 NEW YORK   )
                    ss.:
COUNTY OF NEW YORK  )

     On this 27th day of March,  1997, before me, a notary public in and for the
State of New York,  personally appeared Richard Poska, known to me who, being by
me duly sworn, did depose and say that he resides at Frederick,  Maryland;  that
he is a Vice  President  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 27th day of March,  1997, 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 of North Carolina,  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 27th day of March,  1997, 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 of North Carolina,  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>



STATE OF WISCONSIN  )
                    ss.:
COUNTY OF           )

     On this 27th day of March,  1997, before me, a notary public in and for the
State of Wisconsin,  personally appeared  -------------------,  known to me who,
being  by  me  duly   sworn,   did   depose   and  say  that  s/he   resides  at
- ----------------,  Wisconsin;  that s/he is a  --------------------  of  Firstar
Trust Company, a ------------------------,  one of the parties that executed the
foregoing instrument;  and that s/he signed her/his name thereto by order of the
Board of Directors of said corporation.

- -------------------------
Notary Public

[NOTARIAL SEAL]



<PAGE>



STATE OF WISCONSIN  )
                    ss.:
COUNTY OF           )

     On this 27th day of March,  1997, before me, a notary public in and for the
State of Wisconsin,  personally appeared  -------------------,  known to me who,
being  by  me  duly   sworn,   did   depose   and  say  that  s/he   resides  at
- ----------------,  Wisconsin;  that s/he is a  --------------------  of  Firstar
Trust Company, a ------------------------,  one of the parties that executed the
foregoing instrument;  and that s/he signed her/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 1997-5
                 Applicable Unscheduled Principal Receipt Period

                                        Full Unscheduled     Partial Unscheduled
Servicer                                Principal Receipts   Principal Receipts
- --------                                ------------------   ------------------

Norwest Mortgage, Inc. (Exhibit F-1)    Prior Month          Prior Month

Norwest Mortgage, Inc. (Exhibit F-2)    Mid-Month            Mid-Month

National City Mortgage Company          Prior Month          Prior Month

Citicorp Mortgage Inc.                  Prior Month          Prior Month

First Bank National Assoc.              Prior Month          Prior Month

Suntrust Mortgage, Inc.                 Prior Month          Prior Month

Countrywide Home Loans                  Prior Month          Prior Month

The Huntington Mortgage Company         Prior Month          Prior Month

Cimarron Mortgage Corp                  Prior Month          Prior Month


<PAGE>

                                   EXHIBIT A-1
                     [FORM OF FACE OF CLASS A-1 CERTIFICATE]

             [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
          REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE TRUST
       ADMINISTRATOR 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 1997-5 CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997


Percentage Interest evidenced          Denomination: $
by this Certificate:  %


<PAGE>

     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-1  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-1 Certificates required to be distributed to
Holders  of  Class  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-1 Certificates  applicable to each  Distribution  Date will be 7.00% 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 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 Trust Administrator 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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>


                                   EXHIBIT A-2
                     [FORM OF FACE OF CLASS A-2 CERTIFICATE]

      [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
       OF THE DEPOSITORY TRUST COMPANY TO THE TRUST ADMINISTRATOR 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 1997-5 CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<PAGE>

     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-2  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-2 Certificates required to be distributed to
Holders  of  Class  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-2 Certificates  applicable to each  Distribution  Date will be 7.00% 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 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 Trust Administrator 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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>

                                   EXHIBIT A-3
                     [FORM OF FACE OF CLASS A-3 CERTIFICATE]

      [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
       OF THE DEPOSITORY TRUST COMPANY TO THE TRUST ADMINISTRATOR 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 1997-5 CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997

Percentage Interest evidenced          Denomination:  $
by this Certificate: %


<PAGE>

     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-3  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-3 Certificates required to be distributed to
Holders  of  Class  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-3 Certificates  applicable to each  Distribution  Date will be 7.00% 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 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 Trust Administrator 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 March 27, 1997, and based on its issue price
of 98.19306%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  1.84583333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  7.34%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.01606079%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>

                                   EXHIBIT A-4
                     [FORM OF FACE OF CLASS A-4 CERTIFICATE]

      [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
       OF THE DEPOSITORY TRUST COMPANY TO THE TRUST ADMINISTRATOR 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 1997-5 CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997

Percentage Interest evidenced          Denomination:  $
by this Certificate: %


<PAGE>

     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-4  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-4 Certificates required to be distributed to
Holders  of  Class  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-4 Certificates  applicable to each  Distribution  Date will be 7.00% 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 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 Trust Administrator 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 March 27, 1997, and based on its issue price
of 96.72431%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  3.31458333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  7.45%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.01605532%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>

                                EXHIBIT A-5
                     [FORM OF FACE OF CLASS A-5 CERTIFICATE]

      [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
       OF THE DEPOSITORY TRUST COMPANY TO THE TRUST ADMINISTRATOR 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 1997-5 CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997

Percentage Interest evidenced          Denomination:  $
by this Certificate: %

<PAGE>


     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders  of  Class  A-5  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-5 Certificates required to be distributed to
Holders  of  Class  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 Subclasses of Class A Certificates
may not commence on the first  Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-5 Certificates  applicable to each  Distribution  Date will be 7.00% 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 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 Trust Administrator 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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>

                                  EXHIBIT A-WIO
                    [FORM OF FACE OF CLASS A-WIO 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  SUBJECT  TO  THE   FIDUCIARY
RESPONSIBILITY  PROVISIONS  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 1997-5 CLASS A-WIO

                    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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR OR ANY OF THEIR AFFILIATES, OR BY
ANY GOVERNMENT AGENCY OR PRIVATE INSURER.

Certificate No.                         Cut-Off Date:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced
by this Certificate:      %


<PAGE>

     THIS CERTIFIES THAT  --------------------------- is the registered owner of
the Percentage  Interest evidenced by this Certificate in monthly  distributions
to the  Holders of Class  A-WIO  Certificates  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-WIO Certificates  required to be distributed
to Holders of Class A-WIO  Certificates on such  Distribution  Date,  subject to
adjustment  in certain  events as  specified in the  Agreement.  The Class A-WIO
Certificates  will not be entitled  to  distributions  in respect of  principal.
Interest  will  accrue on the Class A-WIO  Certificates  during each month in an
amount  equal to the  product  of (A)  1/12th of (i) the  Weighted  Average  Net
Mortgage  Interest Rate of the Premium  Mortgage  Loans on the first day of such
month minus (ii) 7.00% and (B) the Class A-WIO Notional Amount as of the related
Distribution  Date. 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 A-WIO 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 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 Trust Administrator for that purpose in the notice of final distribution.

     No transfer of a Class A-WIO  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 Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator 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 Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  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 Trust  Administrator 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 Trust Administrator 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 March 27, 1997, at an issue price of 1.39273%
of the initial Class A-WIO Notional Amount,  including accrued  interest,  and a
stated redemption price at maturity equal to all interest  distributions hereon,
and is issued with  original  issue  discount  ("OID")  for  federal  income tax
purposes.  Assuming (a) that this  Certificate pays in accordance with projected
cash flows  reflecting the Prepayment  Assumption of 250% SPA (as defined in the
Prospectus  Supplement  dated March 20, 1997 with respect to the offering of the
Class A-1, Class A-2,  Class A-3,  Class A-4, Class A-5, Class A-PO,  Class A-R,
Class M, Class B-1 and Class B-2  Certificates)  used to price this  Certificate
and (b) that  the  Pass-Through  Rate  hereon  changes  in  accordance  with the
Prepayment  Assumption:  (i) the amount of OID as a  percentage  of the  initial
Class A-WIO Notional Amount is approximately 0.77718812%;  (ii) the annual yield
to maturity of this Certificate,  compounded monthly,  is approximately  14.05%;
and (iii) the amount of OID allocable to the short first  accrual  period (March
27, 1997 to April 25, 1997) as a percentage of the initial Class A-WIO  Notional
Amount, calculated using the exact method, is approximately 0.01520964%.

     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 Trust  Administrator  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

By ------------------------
   Authorized Officer


<PAGE>

                                  EXHIBIT A-PO
                    [FORM OF FACE OF CLASS A-PO CERTIFICATE]


                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-5, CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<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 A-PO  Certificates  with  respect to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master servicer (the "Master Servicer"),  Firstar Trust Company, as trustee (the
"Trustee"),   and  First  Union  National  Bank  of  North  Carolina,  as  trust
administrator (the "Trust Administrator"), 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  Class  A-PO
Distribution  Amount  required  to be  distributed  to  Holders  of  Class  A-PO
Certificates on such Distribution  Date, subject to adjustment in certain events
as specified in the Agreement.  The Class A-PO Certificates will not be 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 Trust  Administrator  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 March  27,  1997,  at an  issue  price of
73.00000%  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 250% SPA (as
defined in the  Prospectus  Supplement  dated March 20, 1997 with respect to the
offering of the Class A-1,  Class A-2,  Class A-3,  Class A-4,  Class A-5, Class
A-PO,  Class A-R, Class M, Class B-1 and Class B-2  Certificates)  used to price
this Certificate: (i) the amount of OID as a percentage of the initial principal
balance of this Certificate is approximately27.00000000%;  (ii) the annual yield
to maturity of this Certificate, compounded monthly, is approximately 6.83%; and
(iii) the amount of OID allocable to the short first  accrual  period (March 25,
1997 to April 25, 1997) as a percentage of the initial principal balance of this
Certificate, calculated using the exact method, is approximately 0.38771648%.

     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 Trust  Administrator  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>

                                   EXHIBIT A-R
                     [Form of Face of Class 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 TRUST  ADMINISTRATOR  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 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 THE
FIDUCIARY  RESPONSIBILITY  PROVISIONS 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.

PURCHASERS  OF THIS  CLASS A-R  CERTIFICATE  SHOULD BE AWARE  THAT ON JANUARY 3,
1995,  THE INTERNAL  REVENUE  SERVICE  ISSUED  PROPOSED  REGULATIONS  UNDER CODE
SECTION  475 THAT,  IF  ADOPTED  IN FINAL  FORM,  WOULD  APPLY TO THIS CLASS A-R
CERTIFICATE  AND WOULD NOT  PERMIT  THIS CLASS A-R  CERTIFICATE  TO BE MARKED TO
MARKET.


<PAGE>

                        MORTGAGE PASS-THROUGH CERTIFICATE
                            SERIES 1997-5, CLASS 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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997

Percentage Interest evidenced          Denomination:  $
by this Certificate: 100%


<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  A-R  Certificate  with  respect  to a Trust  Estate
consisting of a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations  (the  "Mortgage  Loans"),   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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 Class A Subclass
Distribution Amount for the Class A-R Certificate  required to be distributed to
the Holders of the Class 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 Subclasses of Class A Certificates
will not commence on the first Distribution Date specified above.  Distributions
of principal will be allocated  among the Subclasses of Class A Certificates  in
accordance with the provisions of the Agreement.  The  pass-through  rate on the
Class A-R  Certificate  applicable to each  Distribution  Date will be 7.00% 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 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 Trust  Administrator
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 Trust  Administrator,  by manual  signature,  this Certificate  shall not be
entitled to any benefit under the Agreement or be valid for any purpose.

     IN WITNESS WHEREOF,  the Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator


                                    By----------------------------
                                      Authorized Officer

Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator

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
AND THE CLASS M 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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS B-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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<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 a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 the Class M Certificates as specified in
the Agreement,  any Class B-1 Distribution  Amount required to be distributed to
Holders  of  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
7.00% 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.  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 Trust  Administrator  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  Trust
Administrator  (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 Trust Administrator
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 March 27, 1997, and based on its issue price
of 97.56806%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  2.47083333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  7.44%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.02024957%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>

                                   EXHIBIT B-2
                     [FORM OF FACE OF CLASS B-2 CERTIFICATE]

THIS   CERTIFICATE  IS   SUBORDINATED  IN  RIGHT  OF  PAYMENT  TO  THE  CLASS  A
CERTIFICATES,  THE  CLASS M  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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS B-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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<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 a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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,  the Class M Certificates  and each Subclass
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  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
7.00% 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.  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 Trust  Administrator  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  Trust
Administrator  (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 Trust Administrator
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 March 27, 1997, and based on its issue price
of 96.25556%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  3.78333333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  7.68%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.03074752%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


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 M CERTIFICATES, THE CLASS B-1 CERTIFICATES AND THE CLASS
B-2 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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS B-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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<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 a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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,  the Class M Certificates  and each Subclass
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  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
7.00% 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.  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 Trust  Administrator  for that purpose in the notice of
final distribution.

     No transfer of a Class B-3 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 Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator 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 Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  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 Trust  Administrator 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 Trust Administrator
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 March 27, 1997, and based on its issue price
of 91.31806%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  8.72083333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  8.64%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.06894604%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


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 M 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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS B-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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                            First Distribution Date:  April 25, 1997

Percentage Interest evidenced         Denomination:  $
by this Certificate: %



<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 a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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,  the Class M Certificates  and each Subclass
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  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
7.00% 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.  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 Trust  Administrator  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 Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator 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 Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  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 Trust  Administrator 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 Trust Administrator
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 March 27, 1997, and based on its issue price
of 79.41181%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this Certificate is approximately  20.62708333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  11.28%;  and (iii) the amount of OID allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.15205821%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


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 M 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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS B-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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                              First Distribution Date:  April 25, 1997

Percentage Interest evidenced           Denomination:  $
by this Certificate: %


<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 a pool of fixed  interest rate,  conventional,  monthly pay, fully
amortizing,  first lien, one- to four-family  residential  mortgage  loans,  and
which may  include  loans  secured  by  shares  issued  by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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,  the Class M Certificates  and each Subclass
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  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
7.00% 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 Trust  Administrator  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 Trust Administrator or the Seller may require the Holder to deliver
an opinion of counsel  acceptable to and in form and substance  satisfactory  to
the Trust  Administrator 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 Trust
Administrator,  the Seller, the Master Servicer,  and any Paying Agent acting on
behalf of the Trust  Administrator  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 Trust  Administrator 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 Trust Administrator
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 March 27, 1997, and based on its issue price
of 39.13056%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this Certificate is approximately  60.90833333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  28.22%;  and (iii) the amount of OID allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.31377616%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>

                                   EXHIBIT C

                      [Form of Face of Class M 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 THE FIDUCIARY  RESPONSIBILITY  PROVISIONS 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 1997-5, CLASS M


                    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,  THE TRUST  ADMINISTRATOR OR ANY OF
THEIR  AFFILIATES,  AND IS NOT INSURED OR GUARANTEED  BY THE SELLER,  THE MASTER
SERVICER, THE TRUSTEE, THE TRUST ADMINISTRATOR 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:   March 1, 1997

CUSIP No.:                             First Distribution Date:  April 25, 1997

Percentage Interest evidenced          Denomination:  $
by this Certificate: %


<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 M Certificates with respect to a Trust
Estate consisting of a pool of fixed interest rate,  conventional,  monthly pay,
fully amortizing,  first lien, one- to four-family  residential  mortgage loans,
and which may include  loans  secured by shares  issued by  cooperative  housing
corporations   (the  "Mortgage   Loans")  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 March 27, 1997 (the
"Agreement") among the Seller, Norwest Bank Minnesota,  National Association, as
master  servicer  (the "Master  Servicer"),  First Union  National Bank of North
Carolina,  as trust administrator (the "Trust  Administrator") and Firstar Trust
Company,  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 M
Distribution   Amount   required  to  be  distributed  to  Holders  of  Class  M
Certificates  on such  Distribution  Date,  subject  to  adjustment,  in certain
events, as specified in the Agreement.  The Class M Pass-Through Rate applicable
to each  Distribution Date will be 7.00% 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 M 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 Trust  Administrator  for that purpose in the notice of
final distribution.

     No transfer of a Class M Certificate  will be made unless the Holder hereof
desiring to make any such transfer shall deliver to the Trust  Administrator (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 Trust  Administrator  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 March 27, 1997, and based on its issue price
of 98.09931%,  including  accrued  interest,  and a stated  redemption  price at
maturity  equal to its initial  principal  balance (plus two 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
250% SPA (as  defined in the  Prospectus  Supplement  dated  March 20, 1997 with
respect to the offering of the Class A-1, Class A-2, Class A-3, Class A-4, Class
A-5, Class A-PO, Class A-R, Class M, Class B-1 and Class B-2 Certificates)  used
to price this Certificate:  (i) the amount of OID as a percentage of the initial
principal  balance of this  Certificate is approximately  1.93958333%;  (ii) the
annual  yield  to  maturity  of  this  Certificate,   compounded   monthly,   is
approximately  7.35%;  and (iii) the amount of OID  allocable to the short first
accrual period (March 27, 1997 to April 25, 1997) as a percentage of the initial
principal  balance of this  Certificate,  calculated using the exact method,  is
approximately 0.01596009%.

     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 Trust  Administrator,  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 Trust Administrator has caused this Certificate to
be duly executed as of the date set forth below.


Dated:  March 27, 1997

                                    First Union National Bank of North Carolina,
                                      Trust Administrator

                                    By----------------------------
                                      Authorized Officer


Countersigned:

First Union National Bank of North Carolina,
  Trust Administrator


By ------------------------
   Authorized Officer


<PAGE>

                                    EXHIBIT D


                 [Form of Reverse of Series 1997-5 Certificates]


                      NORWEST ASSET SECURITIES CORPORATION
                       MORTGAGE PASS-THROUGH CERTIFICATES
                                  SERIES 1997-5

     This Certificate is one of a duly authorized  issue of Certificates  issued
in  several   Classes  and  Subclasses   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 Trust  Administrator,
such advances are  reimbursable  to such  Servicer,  the Master  Servicer or the
Trust  Administrator  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
Trust  Administrator,  as  applicable,  of advances made by such  Servicer,  the
Master Servicer or the Trust Administrator.

     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,  the Trust  Administrator,  and the Trustee and
the  rights of the  Certificateholders  under the  Agreement  at any time by the
Seller,  the Master Servicer,  the Trust  Administrator 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 or  Subclass  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 Trust  Administrator,  duly  endorsed by, or
accompanied  by an assignment  in the form below or other written  instrument of
transfer in form  satisfactory  to the Trust  Administrator  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 Subclass 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 Subclass 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 Trust Administrator 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 Trust Administrator,  the Trustee and
the Certificate Registrar, and any agent of the Seller, the Master Servicer, the
Trust  Administrator,  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 Trust Administrator,
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 Trust  Administrator 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 or Subclass,  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 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 OF NORTH  CAROLINA,  not  individually,  but solely as Trust  Administrator
(including  its  successors  under the Pooling and Servicing  Agreement  defined
below,  the  "Trust   Administrator"),   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,  the Trust  Administrator  and
Firstar  Trust  Company,  as trustee,  have entered into a Pooling and Servicing
Agreement  dated as of March 27,  1997  relating  to the  issuance  of  Mortgage
Pass-Through  Certificates,  Series  1997-5  (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  Trust
Administrator  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 Trust Administrator,  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 Trust  Administrator  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  Trust  Administrator  subsequent  to  the  date  hereof  (the
"Custodial Files") as agent for the Trust  Administrator,  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 Trust  Administrator  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 Trust Administrator.

     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 Trust Administrator.

     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 Trust Administrator.  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  Trust  Administrator,  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;   Trust   Administrator  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 Trust
Administrator  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 Trust Administrator 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 Trust  Administrator  may remove  the  Custodian  at any time.  In such
event, the Trust  Administrator  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 Trust
Administrator  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 Trust Administrator  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  Trust  Administrator  shall  enter  into any  amendment  hereof  except  as
permitted by the Pooling and Servicing Agreement.  The Trust Administrator 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 Trust Administrator,  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 OF NORTH
                                           CAROLINA

230 South Tryon Street                   By:-------------------------------
Charlotte, North Carolina,  28288        Name:-----------------------------
                                         Title:----------------------------



Address:                                 NORWEST ASSET SECURITIES
                                           CORPORATION
7485 New Horizon Way
Frederick, Maryland  21703               By:------------------------------- 
                                         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 of North  Carolina,  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 Mortgage Loans Serviced by Norwest Mortgage
                 from locations other than Frederick, Maryland]

NASCOR
NMI / 1997-5  Exhibit F-1
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS


<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>         
6992546   SHOREWOOD             MN      55331   SFD       7.875     7.609     $2,371.12    180       1-Sep-11           $245,544.50 
6993999   MONROE                CT      06468   SFD       8.500     8.234     $2,594.79    180       1-Nov-11           $260,555.57 
6994127   GARLAND               TX      75044   PUD       8.250     7.984     $1,054.06    180       1-Nov-11           $107,408.91 
6994352   ANNAPOLIS             MD      21403   SFD       7.000     6.734     $2,157.19    180       1-Dec-11           $237,715.15 
6994440   COLUMBIA              MO      65203   SFD       7.250     6.984     $1,971.78    180       1-Jan-12           $214,662.41 
6994454   EVERGREEN             CO      80439   SFD       7.500     7.234     $2,827.39    180       1-Dec-11           $302,219.27 
6994480   SCOTTSDALE            AZ      85262   SFD       7.750     7.484     $7,700.58    180       1-Oct-11           $805,857.80 
6994484   LEXINGTON             MA      02173   SFD       7.375     7.109     $2,851.76    180       1-Dec-11           $307,142.86 
6994526   ONALASKA              WI      54650   SFD       7.750     7.484     $2,070.81    180       1-Dec-11           $218,037.45 
6994596   HOUSTON               TX      77056   HCO       7.750     7.484     $2,823.83    180       1-Dec-11           $297,323.80 
6994600   LIVINGSTON            MT      59047   SFD       7.000     6.734     $1,977.42    180       1-Jan-12           $218,607.77 
6994621   SCOTTSDALE            AZ      85255   SFD       7.500     7.234     $2,243.37    180       1-Jan-12           $240,533.69 
6994657   LITTLETON             CO      80122   SFD       7.250     6.984     $2,063.07    180       1-Jan-12           $224,600.48 
6994662   ROSEVILLE             MN      55113   SFD       7.625     7.359     $2,271.80    180       1-Dec-11           $241,006.72 
6994686   SPICER                MN      56288   SFD       7.000     6.734     $1,959.45    180       1-Jan-12           $216,620.42 
6994689   BELLEVUE              WA      98004   HCO       7.375     7.109     $2,281.41    180       1-Jan-12           $246,480.86 
6994693   SAN JOSE              CA      95118   SFD       7.750     7.484     $2,701.46    180       1-Dec-11           $284,439.78 
6994709   MODESTO               CA      95356   PUD       8.500     8.234     $3,860.18    180       1-Aug-11           $384,252.31 
6994715   WASHINGTON            DC      20007   SFD       7.375     7.109     $2,023.83    180       1-Dec-11           $217,972.34 
6994728   WHITE BEAR LAKE       MN      55110   SFD       7.625     7.359     $2,055.09    180       1-Jan-12           $218,681.48 
6994734   HOULTON               WI      54082   SFD       7.500     7.234     $2,764.35    180       1-Dec-11           $295,481.28 
6994736   GOLDEN                CO      80403   PUD       7.250     6.984     $1,962.66    180       1-Dec-11           $212,996.84 
6994737   PHOENIX               AZ      85044   SFD       7.125     6.859     $3,677.67    180       1-Jan-12           $403,458.39 
6994746   WEST COVINA           CA      91791   SFD       7.750     7.484     $3,294.47    180       1-Nov-11           $345,823.55 
6994751   FRANKLIN              MI      48025   SFD       7.625     7.359     $3,923.35    180       1-Jan-12           $417,482.83 
6994771   CORPUS CHRISTI        TX      78414   SFD       7.250     6.984     $2,592.53    180       1-Jan-12           $282,241.31 
6994782   CHICAGO               IL      60614   LCO       7.625     7.359     $2,595.15    180       1-Jan-12           $276,149.99 
6994783   BOULDER               CO      80304   SFD       7.750     7.484     $2,526.38    180       1-Jan-12           $266,808.96 
6994784   MONTROSE              CO      81401   SFD       7.500     7.234     $2,549.28    180       1-Jan-12           $273,333.75 
6994787   GOLDEN                CO      80401   SFD       7.625     7.359     $2,055.09    180       1-Dec-11           $217,009.57 
6994805   CORONA DEL MAR        CA      92625   SFD       7.250     6.984     $9,128.63    180       1-Jan-12           $993,792.34 
6994823   SUGAR LAND            TX      77479   PUD       7.125     6.859     $3,170.41    180       1-Jan-12           $347,808.95 
6994837   PORTLAND              OR      97216   SFD       7.875     7.609       $403.09    180       1-Apr-11            $41,067.99 
6994838   SILVERTON             OR      97381   SFD       8.250     7.984       $485.07    180       1-Dec-11            $49,527.81 
6994850   BERKELEY LAKE         GA      30136   SFD       7.250     6.984     $2,236.51    180       1-Jan-12           $243,482.83 
6994881   PARK CITY             UT      84098   SFD       7.750     7.484     $2,823.83    180       1-Jan-12           $298,221.62 
6994889   MENASHA               WI      54952   SFD       7.375     7.109     $5,059.58    180       1-Jan-12           $542,065.94 
6994893   DAKOTA DUNES          SD      57049   SFD       8.250     7.984     $2,920.12    180       1-Jan-12           $298,962.52 
6994898   AURORA                CO      80016   SFD       7.500     7.234     $3,559.73    180       1-Jan-12           $381,673.29 
6994907   PHOENIXVILLE          PA      19460   SFD       7.125     6.859     $2,038.12    180       1-Dec-11           $222,880.92 
6994911   TULSA                 OK      74136   SFD       7.250     6.984     $2,921.16    180       1-Jan-12           $318,018.38 
6994918   SAN JOSE              CA      95132   SFD       7.250     6.984     $2,365.78    180       1-Jan-12           $257,555.12 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)              
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                                         
                         MORTGAGE                         T.O.P.            MASTER             
                         INSURANCE         SERVICE        MORTGAGE          SERVICE        
LTV       SUBSIDY        CODE              FEE            LOAN              FEE                
- ------    ---------      ----------        --------       -----------       ----------- 
<S>       <C>            <C>               <C>                              <C>         
58.82                                      0.250                            0.0160 
62.74                                      0.250                            0.0160 
56.01                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
90.00                    33                0.250                            0.0160 
69.32                                      0.250                            0.0160 
68.18                                      0.250                            0.0160 
69.98                                      0.250                            0.0160 
44.44                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
78.85                                      0.250                            0.0160 
49.39                                      0.250                            0.0160 
69.54                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
74.40                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
77.57                                      0.250                            0.0160 
68.89                                      0.250                            0.0160 
26.96                                      0.250                            0.0160 
33.95                                      0.250                            0.0160 
55.22                                      0.250                            0.0160 
79.80                                      0.250                            0.0160 
46.40                                      0.250                            0.0160 
63.64                                      0.250                            0.0160 
67.20                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
76.74                                      0.250                            0.0160 
41.94                                      0.250                            0.0160 
67.07                                      0.250                            0.0160 
73.46                                      0.250                            0.0160 
68.97                                      0.250                            0.0160 
68.30                                      0.250                            0.0160 
39.17                                      0.250                            0.0160 
30.49                                      0.250                            0.0160 
79.89                                      0.250                            0.0160 
76.53                                      0.250                            0.0160 
66.27                                      0.250                            0.0160 
89.99                    33                0.250                            0.0160 
72.45                                      0.250                            0.0160 
75.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
</TABLE>



<PAGE>


<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>         
6994926   OAKLAND               CA      94705   SFD       7.500     7.234     $5,562.07    180       1-Jan-12           $596,364.53 
6994957   PRINCETON             NJ      08540   SFD       6.875     6.609     $2,497.19    180       1-Jan-12           $278,208.84 
6994964   BRECKENRIDGE          CO      80424   LCO       7.625     7.359       $485.75    180       1-Jan-12            $51,688.35 
6994995   KETTERING             OH      45429   SFD       7.250     6.984     $2,008.30    180       1-Jan-12           $217,983.71 
6995025   MCMINNVILLE           OR      97128   SFD       7.750     7.484     $2,070.81    180       1-Jan-12           $218,686.68 
6995041   LITTLETON             CO      80121   SFD       7.750     7.484     $2,823.83    180       1-Jan-12           $298,221.62 
6995061   RENO                  NV      89509   SFD       7.375     7.109     $4,489.23    180       1-Dec-11           $483,362.72 
6995062   PLYMOUTH              MN      55442   SFD       7.000     6.734     $1,955.85    180       1-Jan-12           $216,222.96 
6995106   REDMOND               WA      98053   SFD       7.625     7.359     $3,829.93    180       1-Jan-12           $407,542.78 
6995135   WEST DES MOINES       IA      50265   SFD       7.500     7.234     $4,078.85    180       1-Jan-12           $437,133.99 
6995139   BARRINGTON            IL      60010   SFD       7.500     7.234     $3,893.46    180       1-Jan-12           $417,320.45 
6995140   MENDOTA HEIGHTS       MN      55118   SFD       7.625     7.359     $3,250.78    180       1-Jan-12           $345,548.97 
6995142   GREENFIELD            MN      55357   SFD       7.375     7.109     $3,440.51    180       1-Jan-12           $371,709.04 
6995146   RENO                  NV      89509   SFD       7.625     7.359     $4,904.18    180       1-Jan-12           $521,853.55 
6995147   GOLDEN VALLEY         MN      55427   SFD       7.125     6.859     $1,992.83    180       1-Dec-11           $217,928.00 
6995148   SUMNER                WA      98390   SFD       6.750     6.484     $1,946.80    180       1-Jan-12           $218,577.41 
6995155   ALEXANDRIA            VA      22302   SFD       7.375     7.109     $4,599.62    180       1-Jan-12           $496,937.21 
6995159   PHOENIX               AZ      85020   SFD       6.875     6.609     $2,725.51    180       1-Feb-12           $304,625.32 
6995165   NAVARRE               FL      32566   SFD       7.125     6.859     $1,992.83    180       1-Feb-12           $219,313.42 
6995166   SCARSDALE             NY      10583   SFD       7.250     6.984     $2,008.30    180       1-Jan-12           $217,848.21 
6995185   SEATTLE               WA      98115   SFD       6.750     6.484     $1,931.31    180       1-Jan-12           $216,838.74 
6995190   DENVER                CO      80235   PUD       7.250     6.984     $2,008.30    180       1-Jan-12           $217,631.59 
6995192   HARRISON TOWNSHIP     MI      48045   SFD       7.875     7.609     $3,983.49    180       1-Jan-12           $417,537.47 
6995207   POMONA                CA      91766   SFD       7.625     7.359     $1,293.77    180       1-Jan-12           $137,126.14 
6995228   SAN JOSE              CA      95138   PUD       7.250     6.984     $3,023.40    180       1-Dec-11           $328,114.23 
6995243   GREEN OAKS            IL      60048   SFD       7.750     7.484     $2,070.81    180       1-Feb-12           $219,150.02 
6995245   COLORADO SPRINGS      CO      80904   SFD       7.875     7.609     $2,753.35    180       1-Feb-12           $289,451.74 
6995257   DAKOTA DUNES          SD      57049   SFD       7.125     6.859     $2,264.58    180       1-Dec-11           $247,645.46 
6995271   EAST ALTON            NH      03809   SFD       7.500     7.234     $2,039.43    180       1-Jan-12           $218,666.99 
6995282   GRAYSLAKE             IL      60030   SFD       6.750     6.484     $1,946.80    180       1-Jan-12           $218,577.41 
6995294   EDINA                 MN      55436   SFD       7.250     6.984     $3,012.45    180       1-Jan-12           $327,956.45 
6995305   STILLWATER            MN      55082   SFD       7.625     7.359     $3,362.87    180       1-Dec-11           $356,753.35 
6995312   ORINDA                CA      94563   SFD       7.500     7.234     $2,433.41    180       1-Jan-12           $260,909.48 
6995324   MARIETTA              GA      30068   SFD       7.375     7.109     $3,679.69    180       1-Feb-12           $398,778.64 
6995327   BOULDER               CO      80302   SFD       7.500     7.234     $2,447.31    180       1-Jan-12           $262,251.94 
6995328   SARATOGA              CA      95070   SFD       7.125     6.859     $3,623.32    180       1-Feb-12           $398,751.68 
6995331   EAGLE                 ID      83616   PUD       7.625     7.359     $2,687.49    180       1-Feb-12           $286,840.60 
6995345   ROSWELL               GA      30076   SFD       7.125     6.859     $1,992.83    180       1-Jan-12           $218,622.76 
6995347   PAR-TROY HILLS        NJ      07950   SFD       7.375     7.109     $2,428.60    180       1-Feb-12           $263,193.90 
6995382   CORONADO              CA      92118   SFD       7.500     7.234     $5,098.57    180       1-Jan-12           $546,667.48 
6995390   GILBERT               AZ      85234   SFD       7.500     7.234     $2,584.51    180       1-Feb-12           $277,957.99 
6995412   DUCK                  NC      27949   SFD       8.125     7.859     $4,022.44    180       1-Feb-12           $416,556.08 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)              
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                                         
                         MORTGAGE                         T.O.P.            MASTER             
                         INSURANCE         SERVICE        MORTGAGE          SERVICE        
LTV       SUBSIDY        CODE              FEE            LOAN              FEE                
- ------    ---------      ----------        --------       -----------       ----------- 
<S>       <C>            <C>               <C>                              <C>         
75.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
38.24                                      0.250                            0.0160 
53.01                                      0.250                            0.0160 
52.38                                      0.250                            0.0160 
68.18                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
68.33                                      0.250                            0.0160 
70.40                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
46.40                                      0.250                            0.0160 
66.19                                      0.250                            0.0160 
77.21                                      0.250                            0.0160 
70.97                                      0.250                            0.0160 
54.73                                      0.250                            0.0160 
73.53                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
77.19                                      0.250                            0.0160 
53.01                                      0.250                            0.0160 
90.00                    11                0.250                            0.0160 
59.46                                      0.250                            0.0160 
75.00                                      0.250                            0.0160 
55.40                                      0.250                            0.0160 
79.99                                      0.250                            0.0160 
66.11                                      0.250                            0.0160 
79.53                                      0.250                            0.0160 
65.79                                      0.250                            0.0160 
41.90                                      0.250                            0.0160 
84.51                    01                0.250                            0.0160 
66.60                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
75.00                                      0.250                            0.0160 
57.06                                      0.250                            0.0160 
45.91                                      0.250                            0.0160 
53.33                                      0.250                            0.0160 
62.54                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
79.14                                      0.250                            0.0160 
69.99                                      0.250                            0.0160 
75.00                                      0.250                            0.0160 
</TABLE>



<PAGE>


<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>         
6995413   OMAHA                 NE      68118   SFD       7.375     7.109     $2,023.83    180       1-Jan-12           $218,149.30 
6995415   CARY                  NC      27511   SFD       7.375     7.109     $2,824.16    180       1-Jan-12           $305,119.46 
6995417   BILLERICA             MA      01821   SFD       7.750     7.484     $1,411.91    180       1-Feb-12           $149,556.84 
6995424   HOOVER                AL      35242   SFD       7.000     6.734     $1,977.42    180       1-Feb-12           $219,305.91 
6995439   ARROYO GRANDE         CA      93420   SFD       7.625     7.359     $2,615.56    180       1-Feb-12           $279,163.61 
6995443   TUSTIN                CA      92782   SFD       6.750     6.484     $2,433.73    180       1-Dec-11           $272,350.88 
6995466   SNOWMASS VILLAGE      CO      81615   SFD       7.625     7.359     $4,670.65    180       1-Feb-12           $498,506.43 
6995473   AUSTIN                TX      78746   SFD       7.875     7.609     $1,707.21    180       1-Feb-12           $179,474.04 
6995492   NORTH POTOMAC         MD      20878   SFD       7.000     6.734     $2,606.60    180       1-Feb-12           $289,085.07 
6995500   LITTLETON             CO      80123   SFD       7.625     7.359     $1,868.26    180       1-Feb-12           $199,402.57 
6995504   RALEIGH               NC      27615   SFD       7.125     6.859     $2,201.17    180       1-Jan-12           $241,478.78 
6995515   SUGAR LAND            TX      77479   SFD       7.250     6.984     $2,008.30    180       1-Jan-12           $218,637.63 
6995516   EDEN PRAIRIE          MN      55347   SFD       7.375     7.109     $4,415.63    180       1-Jan-12           $477,059.73 
6995526   CUPERTINO             CA      95014   SFD       7.375     7.109     $4,185.65    180       1-Feb-12           $453,610.70 
6995536   ALEXANDRIA            VA      22314   SFD       7.625     7.359     $3,213.41    180       1-Jan-12           $341,938.31 
6995563   SAN ANTONIO           TX      78209   SFD       6.625     6.359     $2,512.07    120       1-Jan-07           $217,397.86 
6995568   SPOKANE               WA      99208   SFD       7.500     7.234     $3,522.65    180       1-Jan-12           $377,697.53 
6995622   RIVERTON              UT      84065   SFD       7.625     7.359     $2,680.95    180       1-Jan-12           $285,279.95 
6995636   GREAT FALLS           MT      59405   SFD       7.375     7.109     $3,799.28    180       1-Feb-12           $411,738.95 
6995640   CHARLOTTE             VT      05445   SFD       7.125     6.859     $2,337.04    180       1-Feb-12           $257,194.84 
6995650   ENGLEWOOD             CO      80111   SFD       7.750     7.484     $2,469.91    180       1-Feb-12           $261,624.76 
6995662   WINTERVILLE           NC      28590   SFD       7.500     7.234     $2,610.47    180       1-Feb-12           $280,749.53 
6995680   FRESNO                CA      93711   SFD       7.625     7.359     $2,973.59    144       1-Jan-09           $277,603.57 
6995689   WATKINSVILLE          GA      30677   SFD       7.375     7.109     $2,805.77    180       1-Jan-12           $303,131.70 
6995695   PARADISE VALLEY       AZ      85253   SFD       7.625     7.359     $9,341.30    180       1-Feb-12           $997,012.87 
6995698   CORAL SPRINGS         FL      33076   SFD       8.000     7.734     $1,242.35    180       1-Dec-11           $128,807.39 
6995721   VIRGINIA              VA      23455   SFD       7.125     6.859     $1,992.83    180       1-Jan-12           $218,622.76 
6995728   INVERNESS             IL      60067   SFD       7.625     7.359     $4,016.76    180       1-Feb-12           $428,715.53 
6995729   CHICAGO               IL      60640   SFD       7.625     7.359     $3,003.23    180       1-Feb-12           $320,539.63 
6995730   PLYMOUTH              MN      55447   SFD       7.875     7.609     $2,560.81    180       1-Feb-12           $269,211.07 
6995741   WESTON                MA      02193   SFD       8.125     7.859     $2,551.64    180       1-Feb-12           $264,242.63 
6995772   NORTHFIELD            IL      60093   SFD       7.625     7.359     $2,802.39    180       1-Feb-12           $299,103.86 
6995775   CORCORAN              MN      55340   SFD       7.750     7.484     $2,965.02    180       1-Feb-12           $314,069.35 
6995799   HONOLULU              HI      96825   SFD       7.375     7.109     $2,759.77    180       1-Feb-12           $299,083.98 
6995825   GREENWOOD VLG         CO      80121   SFD       7.500     7.234     $2,781.04    180       1-Dec-11           $297,264.86 
6995830   EAGAN                 MN      55122   SFD       7.750     7.484     $2,470.85    180       1-Feb-12           $261,724.46 
6995833   LOS ANGELES           CA      90049   SFD       7.875     7.609     $9,484.50    180       1-Feb-12           $997,078.00 
6995837   RANCHO SANTA FE       CA      92091   SFD       7.250     6.984     $2,921.16    180       1-Feb-12           $319,012.17 
6995856   MERCER ISLAND         WA      98040   SFD       7.000     6.734     $2,670.87    180       1-Feb-12           $296,212.50 
6995877   HILLSBOROUGH          CA      94010   SFD       7.500     7.234     $8,574.86    180       1-Feb-12           $922,206.39 
6995883   BEDFORD               NH      03110   SFD       7.875     7.609     $2,280.31    180       1-Jan-12           $239,015.35 
6995886   PHOENIX               AZ      85014   SFD       7.500     7.234     $2,002.35    180       1-Feb-12           $215,347.65 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)              
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                                         
                         MORTGAGE                         T.O.P.            MASTER             
                         INSURANCE         SERVICE        MORTGAGE          SERVICE        
LTV       SUBSIDY        CODE              FEE            LOAN              FEE                
- ------    ---------      ----------        --------       -----------       ----------- 
<S>       <C>            <C>               <C>                              <C>         
58.67                                      0.250                            0.0160 
75.43                                      0.250                            0.0160 
63.83                                      0.250                            0.0160 
53.52                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
79.84                                      0.250                            0.0160 
38.46                                      0.250                            0.0160 
34.29                                      0.250                            0.0160 
67.13                                      0.250                            0.0160 
75.47                                      0.250                            0.0160 
61.83                                      0.250                            0.0160 
75.86                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
63.19                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
48.89                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
70.00                                      0.250                            0.0160 
70.00                                      0.250                            0.0160 
74.14                                      0.250                            0.0160 
54.67                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
62.22                                      0.250                            0.0160 
72.62                                      0.250                            0.0160 
50.00                                      0.250                            0.0160 
69.89                                      0.250                            0.0160 
57.14                                      0.250                            0.0160 
55.48                                      0.250                            0.0160 
78.41                                      0.250                            0.0160 
73.39                                      0.250                            0.0160 
50.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
84.00                    13                0.250                            0.0160 
55.56                                      0.250                            0.0160 
45.11                                      0.250                            0.0160 
75.00                                      0.250                            0.0160 
24.39                                      0.250                            0.0160 
25.10                                      0.250                            0.0160 
70.00                                      0.250                            0.0160 
57.28                                      0.250                            0.0160 
76.81                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
</TABLE>



<PAGE>


<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>         
6995887   NEW CITY              NY      10956   SFD       8.125     7.859     $2,272.40    180       1-Oct-11           $232,581.60 
6995892   GOLDEN                CO      80401   SFD       7.250     6.984     $2,475.68    180       1-Feb-12           $270,362.82 
6995898   ROCKVILLE             MD      20852   SFD       7.500     7.234     $2,595.63    180       1-Feb-12           $279,154.37 
6995909   BLOOMFIELD HILL       MI      48304   SFD       7.375     7.109     $2,759.77    180       1-Mar-12           $300,000.00 
6995913   BREWSTER              NY      10509   SFD       7.500     7.234       $927.01    180       1-Mar-12           $100,000.00 
6995945   PETALUMA              CA      94952   SFD       7.000     6.734     $1,977.42    180       1-Jan-12           $218,607.77 
6995949   ROCKVILLE             MD      20852   SFD       7.250     6.984     $2,008.30    180       1-Dec-11           $217,950.27 
6995952   SACRAMENTO            CA      95841   SFD       7.375     7.109     $2,023.83    180       1-Jan-12           $218,652.37 
6995955   ALBUQUERQUE           NM      87112   SFD       7.750     7.484     $2,216.70    180       1-Feb-12           $234,804.24 
6995959   WEST MILFORD          NJ      07480   SFD       7.125     6.859     $2,173.99    180       1-Feb-12           $239,251.01 
6995960   WEST CHESTER          PA      19382   SFD       7.375     7.109     $3,863.68    180       1-Feb-12           $418,717.57 
6995964   LINCOLNWOOD           IL      60646   SFD       7.875     7.609     $2,750.50    180       1-Feb-12           $289,152.63 
6995980   DANVILLE              CA      94506   PUD       7.375     7.109     $2,575.79    180       1-Dec-11           $277,419.33 
6996005   SCOTTSDALE            AZ      85258   SFD       7.500     7.234     $2,247.08    180       1-Feb-12           $241,667.92 
6996031   COTO DE CAZA          CA      92679   SFD       7.625     7.359     $2,184.93    180       1-Mar-12           $233,900.00 
6996036   HALEIWA               HI      96712   SFD       7.375     7.109     $3,876.56    180       1-Jan-12           $418,781.24 
6996037   STEAMBOAT SPRINGS     CO      80477   SFD       7.250     6.984     $2,053.94    180       1-Jan-12           $223,606.68 
6996047   EDINA                 MN      55424   SFD       7.500     7.234     $2,456.58    180       1-Feb-12           $264,199.67 
6996052   EDINA                 MN      55439   SFD       7.625     7.359     $2,148.50    180       1-Mar-12           $230,000.00 
6996060   PROVIDENCE            UT      84332   SFD       7.375     7.109     $2,023.83    180       1-Jan-12           $218,652.37 
6996086   RENO                  NV      89511   SFD       7.625     7.359     $2,101.79    180       1-Mar-12           $225,000.00 

                                                                                                                     $44,993,555.91


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)              
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                                         
                         MORTGAGE                         T.O.P.            MASTER             
                         INSURANCE         SERVICE        MORTGAGE          SERVICE        
LTV       SUBSIDY        CODE              FEE            LOAN              FEE                
- ------    ---------      ----------        --------       -----------       ----------- 
<S>       <C>            <C>               <C>                              <C>         
69.41                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
57.14                                      0.250                            0.0160 
55.56                                      0.250                            0.0160 
58.51                                      0.250                            0.0160 
44.00                                      0.250                            0.0160 
73.33                                      0.250                            0.0160 
69.26                                      0.250                            0.0160 
77.42                                      0.250                            0.0160 
76.50                                      0.250                            0.0160 
89.23                    33                0.250                            0.0160 
39.16                                      0.250                            0.0160 
80.00                                      0.250                            0.0160 
79.99                                      0.250                            0.0160 
70.23                                      0.250                            0.0160 
48.91                                      0.250                            0.0160 
79.82                                      0.250                            0.0160 
69.49                                      0.250                            0.0160 
73.33                                      0.250                            0.0160 
45.36                                      0.250                            0.0160 
</TABLE>


COUNT:                         147
WAC:                   7.481436424
WAM:                   177.5641111
WALTV:                 66.58649123

<PAGE>

                                   EXHIBIT F-2


                     [Schedule of Mortgage Loans Serviced by
                    Norwest Mortgage in Frederick, Maryland]

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4506750   SEDONA                AZ      86336   SFD       8.125     7.859     $4,332.97    180       1-Jan-12           $447,419.10 
4528245   CHESTER               NJ      07930   SFD       8.000     7.734     $3,244.44    180       1-Mar-12           $339,500.00 
4534630   RINGOES               NJ      08551   SFD       7.875     7.609     $2,608.24    180       1-Feb-12           $274,196.45 
4537139   LAS VEGAS             NV      89130   SFD       8.750     8.484     $1,299.29    180       1-Sep-11           $122,779.76 
4538710   MIDLOTHIAN            VA      23113   SFD       7.250     6.984     $2,514.03    180       1-Mar-12           $275,400.00 
4540067   MARLBORO              NJ      07746   SFD       7.125     6.859     $2,188.04    180       1-Jan-12           $239,373.93 
4540165   LONG BEACH            NY      11561   SFD       8.125     7.859     $1,170.86    180       1-Jan-12           $120,902.59 
4541019   MAHOPAC               NY      10541   SFD       7.375     7.109     $2,207.82    180       1-Jan-12           $238,529.86 
4541663   BOONTON               NJ      07005   LCO       7.375     7.109     $2,045.45    180       1-Feb-12           $221,671.08 
4541880   SAN FRANCISCO         CA      94131   SFD       8.125     7.859     $2,310.92    180       1-Oct-11           $236,523.64 
4542636   VAIL                  CO      81657   SFD       8.000     7.734     $4,728.57    180       1-Oct-11           $482,319.85 
4542776   FAIR OAKS RANCH       TX      78015   SFD       7.875     7.609     $2,324.65    180       1-Nov-11           $242,141.91 
4543024   PARKS                 AZ      86018   SFD       7.000     6.734     $2,049.33    180       1-Feb-12           $227,280.67 
4543402   FALL CITY             WA      98024   SFD       7.000     6.734     $2,247.08    180       1-Feb-12           $249,211.25 
4543685   ORLANDO               FL      32837   SFD       7.375     7.109     $2,060.63    180       1-Dec-11           $221,935.47 
4544283   LAS FLORES            CA      92688   SFD       7.000     6.734     $2,948.16    180       1-Jan-12           $325,924.31 
4544862   CENTERVILLE           MA      02632   SFD       8.750     8.484       $599.67    180       1-Nov-11            $59,343.19 
4544941   SHARON                MA      02067   SFD       7.625     7.359     $2,335.33    180       1-Jan-12           $248,501.68 
4545125   HOUSTON               TX      77005   SFD       8.125     7.859     $2,375.92    180       1-Nov-11           $243,525.60 
4546329   SAN JOSE              CA      95148   SFD       8.625     8.359     $2,169.68    180       1-Oct-11           $215,617.49 
4546800   FORT COLLINS          CO      80525   SFD       7.500     7.234     $2,224.83    180       1-Jan-12           $238,545.81 
4546817   LANTANA               FL      33462   SFD       7.625     7.359     $2,288.62    180       1-Apr-11           $236,688.96 
4547651   DESTREHAN             LA      70047   SFD       8.125     7.859     $1,396.18    180       1-Jan-12           $144,168.38 
4548056   SAN ANTONIO           TX      78229   SFD       7.625     7.359     $2,662.27    180       1-Jan-12           $283,266.93 
4548187   CUMBERLAND            ME      04021   SFD       7.625     7.359     $2,503.47    180       1-Jan-12           $266,393.81 
4548264   MINNEAPOLIS           MN      55403   SFD       7.250     6.984     $2,190.88    180       1-Feb-12           $239,259.12 
4548396   HINGHAM               MA      02043   SFD       6.875     6.609     $3,121.50    180       1-Mar-12           $350,000.00 
4548734   BOISE                 ID      83702   SFD       7.250     6.984     $3,432.36    180       1-Feb-12           $374,839.31 
4548780   MARION                MA      02738   SFD       7.500     7.234     $2,438.05    180       1-Dec-11           $260,602.18 
4548915   ALPHARETTA            GA      30202   SFD       7.750     7.484     $2,473.68    180       1-Jan-12           $261,242.13 
4549362   HOUSTON               TX      77007   SFD       7.375     7.109     $2,207.82    180       1-Mar-12           $240,000.00 
4549515   NEWBURGH              NY      12550   SFD       7.250     6.984       $976.76    180       1-Jan-12           $106,337.40 
4549518   SCOTTSDALE            AZ      85255   SFD       8.000     7.734     $4,061.52    180       1-Feb-12           $423,771.81 
4549951   PITTSFORD             NY      14534   SFD       6.875     6.609     $2,229.64    180       1-Feb-12           $249,202.65 
4549981   FOXBORO               MA      02035   SFD       7.625     7.359     $2,335.33    180       1-Jan-12           $248,501.68 
4550049   CONCORD               NC      28025   SFD       7.875     7.609     $3,215.25    180       1-Dec-11           $336,008.77 
4550095   SODDY-DAISY           TN      37379   SFD       7.000     6.734     $2,948.16    180       1-Feb-12           $326,965.17 
4550790   SUMMIT                NJ      07901   SFD       6.875     6.609     $2,172.12    180       1-Jan-12           $241,991.99 
4550882   PENSACOLA BEACH       FL      32561   SFD       7.750     7.484     $4,015.49    180       1-Feb-12           $425,339.63 
4550943   MEDINA                MN      55356   SFD       7.750     7.484     $2,888.31    180       1-Dec-11           $304,058.50 
4551119   OLD WESTBURY          NY      11568   SFD       8.000     7.734     $6,211.74    180       1-Feb-12           $648,121.59 
4551193   BIRMINGHAM            AL      35213   SFD       7.875     7.609     $4,042.39    120       1-Dec-06           $329,431.77 
4551220   CEDAR FALLS           IA      50613   SFD       7.625     7.359     $2,382.04    180       1-Jan-12           $253,471.70 
4551275   SALT LAKE CITY        UT      84105   SFD       8.250     7.984     $2,778.49    180       1-Dec-11           $283,954.79 
4551509   ATLANTA               GA      30328   SFD       7.375     7.109     $3,123.14    180       1-Jan-12           $337,420.37 
4551754   DANVILLE              CA      94506   SFD       7.500     7.234     $5,228.35    180       1-Nov-11           $557,122.46 


<CAPTION>

(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
70.87                                      0.250                            0.016 
43.93                                      0.250                            0.016 
79.71                                      0.250                            0.016 
74.97                                      0.250                            0.016 
89.99                    33                0.250                            0.016 
80.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
52.17                                      0.250                            0.016 
79.98     GD 5YR                           0.250                            0.016 
76.19                                      0.250                            0.016 
80.00                                      0.250                            0.016 
95.00                    01                0.250                            0.016 
80.00                                      0.250                            0.016 
50.00                                      0.250                            0.016 
78.28                                      0.250                            0.016 
68.05     GD 3YR                           0.250                            0.016 
63.16                                      0.250                            0.016 
69.46                                      0.250                            0.016 
75.00                                      0.250                            0.016 
90.00                    17                0.250                            0.016 
82.76                    33                0.250                            0.016 
72.06                                      0.250                            0.016 
59.18                                      0.250                            0.016 
67.06                                      0.250                            0.016 
74.86                                      0.250                            0.016 
73.85                                      0.250                            0.016 
76.09                                      0.250                            0.016 
80.00                                      0.250                            0.016 
71.08                                      0.250                            0.016 
73.61                                      0.250                            0.016 
74.30                                      0.250                            0.016 
52.20                                      0.250                            0.016 
36.96                                      0.250                            0.016 
50.00                                      0.250                            0.016 
57.47                                      0.250                            0.016 
79.95                                      0.250                            0.016 
80.00                                      0.250                            0.016 
69.99                                      0.250                            0.016 
72.92                                      0.250                            0.016 
52.45                                      0.250                            0.016 
69.89                                      0.250                            0.016 
57.36                                      0.250                            0.016 
78.46                                      0.250                            0.016 
80.00                                      0.250                            0.016 
70.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
</TABLE>


<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4552017   MINNETONKA            MN      55345   SFD       7.750     7.484     $2,965.02    180       1-Jan-12           $313,132.69 
4552087   MOBILE                AL      36695   SFD       7.750     7.484     $3,641.80    180       1-Dec-11           $383,448.60 
4552097   SAN FRANCISCO         CA      94115   SFD       7.500     7.234     $2,039.43    180       1-Mar-12           $220,000.00 
4552193   HINSDALE              IL      60521   SFD       6.750     6.484     $5,751.92    180       1-Feb-12           $647,838.53 
4552252   BURKE                 VA      22015   SFD       7.000     6.734     $3,325.66    180       1-Dec-11           $366,477.54 
4552281   BEVERLY HILLS         CA      90212   LCO       7.000     6.734     $2,678.51    180       1-Feb-12           $297,059.82 
4552314   NEDERLAND             TX      77627   SFD       7.375     7.109     $2,529.79    180       1-Feb-12           $274,160.31 
4552430   PITTSTOWN             NJ      08867   SFD       6.625     6.359     $1,483.81    180       1-Jan-12           $167,895.38 
4552516   BELLE MEAD            NJ      08502   SFD       7.000     6.734     $2,408.86    180       1-Feb-12           $267,154.47 
4552652   CATAULA               GA      31804   SFD       7.625     7.359     $3,236.76    180       1-Dec-11           $340,686.31 
4552852   BEDFORD               MA      01730   SFD       7.125     6.859     $2,943.96    180       1-Feb-12           $323,985.73 
4552871   TULSA                 OK      74114   SFD       8.000     7.734     $3,822.61    180       1-Dec-11           $396,509.00 
4552937   COLLEYVILLE           TX      76034   SFD       7.375     7.109     $2,601.55    180       1-Dec-11           $279,283.90 
4553225   MEDFIELD              MA      02052   SFD       7.375     7.109     $2,989.76    180       1-Jan-12           $323,009.18 
4553257   NEW CITY              NY      10956   SFD       7.750     7.484     $3,059.15    180       1-Jan-12           $323,073.42 
4553409   LONG VALLEY           NJ      07853   SFD       7.250     6.984     $2,008.30    180       1-Feb-12           $219,320.87 
4553545   WILMETTE              IL      60091   SFD       7.625     7.359     $2,498.80    180       1-Feb-12           $266,199.74 
4553867   FORT SMITH            AR      72916   SFD       7.875     7.609     $2,276.28    180       1-Jan-12           $238,592.84 
4553893   MEDFORD               NY      11763   SFD       8.000     7.734       $860.09    180       1-Jan-12            $89,477.53 
4554000   SALT LAKE CITY        UT      84117   SFD       7.625     7.359     $3,596.40    180       1-Jan-12           $382,286.43 
4554029   FIRE ISLAND PINES     NY      11782   SFD       7.875     7.609     $2,898.46    180       1-Feb-12           $304,707.04 
4554038   AUSTIN                TX      78731   SFD       7.875     7.609     $4,249.06    180       1-Jan-12           $445,373.29 
4554043   RICHMOND              VA      23233   SFD       7.375     7.109     $4,139.66    180       1-Feb-12           $448,625.96 
4554047   VIRGINIA BEACH        VA      23452   SFD       7.500     7.234     $2,855.20    180       1-Dec-11           $305,191.93 
4554119   RALEIGH               NC      27612   SFD       7.875     7.609     $2,134.01    180       1-Jan-12           $223,680.80 
4554163   OKLAHOMA CITY         OK      73170   SFD       7.500     7.234     $3,782.21    180       1-Feb-12           $406,767.79 
4554165   SETAUKET              NY      11733   LCO       8.125     7.859     $1,213.24    180       1-Feb-12           $125,639.88 
4554780   NORTH CALDWELL        NJ      07006   SFD       8.375     8.109     $3,205.96    180       1-Jan-12           $326,160.02 
4554832   WAUKEE                IA      50263   SFD       7.375     7.109     $2,833.37    180       1-Feb-12           $307,059.55 
4554913   SOUTHLAKE             TX      76092   SFD       7.625     7.359     $2,540.84    180       1-Dec-11           $269,546.97 
4554996   FALBROOK              CA      92028   SFD       7.375     7.109     $3,311.73    180       1-Jan-12           $357,794.78 
4555122   GROSSE ISLE           MI      48138   SFD       6.875     6.609     $2,408.01    180       1-Mar-12           $270,000.00 
4555277   PORTLAND              OR      97221   SFD       7.500     7.234     $2,095.05    180       1-Jan-12           $224,630.63 
4555429   OAKLAND               NJ      07436   SFD       7.375     7.109     $1,619.07    180       1-Jan-12           $174,721.89 
4555714   MIDDLEBURY            CT      06762   SFD       7.875     7.609     $3,177.31    180       1-Jan-12           $333,035.83 
4555864   FREMONT               CA      94539   SFD       7.750     7.484     $3,294.47    180       1-Jan-12           $347,925.22 
4556192   CONVENT STATION       NJ      07961   SFD       7.500     7.234     $2,827.39    180       1-Feb-12           $304,078.86 
4556279   LAKE OSWEGO           OR      97034   SFD       7.375     7.109     $3,458.92    180       1-Jan-12           $373,655.43 
4556307   EDISON                NJ      08820   SFD       6.625     6.359     $1,922.81    180       1-Jan-12           $217,568.56 
4556323   CINCINNATI            OH      45242   SFD       7.375     7.109     $2,035.33    180       1-Jan-12           $219,894.72 
4556564   EVANS                 GA      30809   SFD       7.375     7.109     $2,759.77    180       1-Feb-12           $299,083.98 
4557090   SAN RAMON             CA      94583   SFD       8.000     7.734     $2,690.17    180       1-Jan-12           $279,867.57 
4557131   SARATOGA              CA      95070   SFD       7.875     7.609     $4,742.25    180       1-Jan-12           $497,068.41 
4557192   SHOREHAM              NY      11786   SFD       7.750     7.484     $1,317.79    180       1-Feb-12           $139,586.38 
4557617   LOS GATOS             CA      95032   SFD       7.125     6.859     $2,608.80    180       1-Jan-12           $286,197.06 
4557914   PARK CITY             UT      84098   SFD       7.500     7.234     $3,151.85    180       1-Jan-12           $337,939.88 



<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>         
70.00                                      0.250                            0.016  
86.57                    13                0.250                            0.016  
20.47                                      0.250                            0.016  
68.42                                      0.250                            0.016  
78.72                                      0.250                            0.016  
74.87                                      0.250                            0.016  
74.32                                      0.250                            0.016  
45.69                                      0.250                            0.016  
80.00                                      0.250                            0.016  
90.00                    13                0.250                            0.016  
59.63     GD 3YR                           0.250                            0.016  
40.00                                      0.250                            0.016  
90.00                    33                0.250                            0.016  
73.86                                      0.250                            0.016  
68.42                                      0.250                            0.016  
61.37                                      0.250                            0.016  
72.79                                      0.250                            0.016  
79.21                                      0.250                            0.016  
69.23                                      0.250                            0.016  
66.38                                      0.250                            0.016  
80.00                                      0.250                            0.016  
80.00                                      0.250                            0.016  
73.77                                      0.250                            0.016  
79.79                                      0.250                            0.016  
74.75                                      0.250                            0.016  
77.71                                      0.250                            0.016  
75.00                                      0.250                            0.016  
80.00                                      0.250                            0.016  
88.00                    11                0.250                            0.016  
80.00                                      0.250                            0.016  
80.00                                      0.250                            0.016  
75.26                                      0.250                            0.016  
55.12                                      0.250                            0.016  
80.00                                      0.250                            0.016  
74.44                                      0.250                            0.016  
70.00                                      0.250                            0.016  
74.39                                      0.250                            0.016  
74.31                                      0.250                            0.016  
58.40                                      0.250                            0.016  
75.00                                      0.250                            0.016  
66.82                                      0.250                            0.016  
76.08                                      0.250                            0.016  
33.33                                      0.250                            0.016  
68.63                                      0.250                            0.016  
63.30                                      0.250                            0.016  
80.00                                      0.250                            0.016  
</TABLE>

<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4557972   KENTFIELD             CA      94904   SFD       7.500     7.234     $7,972.31    180       1-Jan-12           $854,789.15 
4558009   RIVERSIDE             CA      92504   SFD       7.250     6.984     $3,970.96    180       1-Jan-12           $431,775.99 
4558029   LOS ANGELES           CA      90067   HCO       8.250     7.984     $2,813.41    180       1-Sep-11           $284,996.69 
4558037   FREMONT               CA      94539   SFD       7.875     7.609     $3,509.27    180       1-Jan-12           $367,830.62 
4558047   EDINA                 MN      55424   SFD       7.500     7.234     $4,004.70    180       1-Feb-12           $430,695.30 
4558079   NAPLES                FL      34108   SFD       7.500     7.234     $3,521.72    180       1-Jan-12           $377,598.14 
4558088   COVINGTON             LA      70435   SFD       8.000     7.734     $2,293.57    180       1-Oct-11           $236,485.61 
4558162   LOGANVILLE            GA      30249   SFD       7.750     7.484     $3,294.47    180       1-Sep-11           $343,693.70 
4558215   BLACKSBURG            VA      24060   SFD       7.250     6.984     $2,147.51    180       1-May-11           $226,915.72 
4558219   CHARLESTON            SC      29420   SFD       8.250     7.984     $2,289.54    180       1-Aug-11           $230,941.56 
4558343   HOUSTON               TX      77024   SFD       7.125     6.859     $2,164.94    180       1-Feb-12           $238,254.12 
4558450   ATHERTON              CA      94027   SFD       7.375     7.109     $3,044.95    180       1-Jan-12           $328,972.43 
4558469   VIRGINIA BEACH        VA      23454   SFD       6.875     6.609     $2,586.38    180       1-Jan-12           $288,144.86 
4558617   ELLICOTT CITY         MD      21042   SFD       7.625     7.359     $4,016.76    180       1-Jan-12           $427,422.90 
4558689   NAPERVILLE            IL      60540   SFD       7.125     6.859     $1,992.83    180       1-Jan-12           $218,622.76 
4558807   LAFAYETTE             CO      80026   SFD       7.375     7.109     $2,851.77    180       1-Jan-12           $308,101.06 
4558857   WASHINGTON TOWNSHIP   NJ      07675   SFD       7.000     6.734     $2,971.08    180       1-Feb-12           $329,507.13 
4558941   GLEN ROCK             NJ      07452   SFD       7.625     7.359     $3,362.87    180       1-Jan-12           $357,842.43 
4558984   BRENTWOOD             TN      37027   SFD       6.500     6.234     $3,310.21    180       1-Jan-12           $377,489.46 
4559094   PLYMOUTH              MN      55447   SFD       7.250     6.984     $2,282.16    180       1-Feb-12           $249,228.26 
4559157   ASHLAND               OR      97520   SFD       7.375     7.109     $2,097.43    180       1-Jan-12           $226,603.36 
4559194   BLUE BELL             PA      19422   SFD       7.000     6.734     $2,247.08    180       1-Feb-12           $249,211.25 
4559222   BLOOMFIELD HILLS      MI      48304   SFD       7.250     6.984     $4,682.08    180       1-Feb-12           $511,316.69 
4559252   VALRICO               FL      33594   SFD       7.250     6.984     $2,035.69    180       1-Feb-12           $222,311.60 
4559297   CHATHAM               NJ      07928   SFD       6.875     6.609     $2,648.81    180       1-Feb-12           $296,052.75 
4559301   FREMONT               CA      94539   SFD       7.625     7.359     $2,634.25    180       1-Feb-12           $281,157.63 
4559310   TEQUESTA              FL      33469   SFD       7.875     7.609     $2,371.13    180       1-Feb-12           $248,640.63 
4559339   OSSINING              NY      10562   SFD       8.125     7.859     $2,744.21    180       1-Feb-12           $284,185.48 
4559351   BLOOMFIELD HILLS      MI      48302   LCO       8.125     7.859       $385.15    180       1-Jan-12            $39,770.59 
4559359   KNOXVILLE             TN      37922   SFD       7.500     7.234     $2,873.74    180       1-Jan-12           $308,121.67 
4559516   BABYLON               NY      11702   SFD       7.750     7.484     $1,506.05    180       1-Feb-12           $159,527.28 
4559561   LITTLE ROCK           AR      72227   SFD       7.500     7.234     $2,781.04    180       1-Jan-12           $298,182.26 
4559601   SPARTA                NJ      07871   SFD       7.375     7.109     $3,330.12    180       1-Feb-12           $360,894.67 
4559860   SPARTA                NJ      07871   SFD       7.375     7.109     $2,235.42    180       1-Feb-12           $242,258.02 
4559944   LAGUNA NIGUEL         CA      92677   PUD       7.625     7.359     $3,166.71    180       1-Jan-12           $336,968.27 
4559961   BEDFORD               NH      03110   SFD       7.125     6.859     $2,201.17    180       1-Feb-12           $242,241.64 
4560138   THOUSAND OAKS         CA      91361   SFD       7.375     7.109     $5,979.50    180       1-Jan-12           $646,018.38 
4560209   SCITUATE              MA      02066   SFD       7.500     7.234     $3,128.67    180       1-Feb-12           $335,609.38 
4560255   KENTFIELD             CA      94904   SFD       7.125     6.859     $2,042.65    180       1-Feb-12           $224,796.26 
4560300   CYPRESS               CA      90630   SFD       7.875     7.609     $2,532.37    180       1-Jan-12           $265,233.21 
4560309   DULUTH                GA      30136   SFD       7.375     7.109     $1,974.67    180       1-Feb-12           $213,999.56 
4560351   VIRGINIA BEACH        VA      23455   SFD       7.750     7.484     $2,541.45    180       1-Jan-12           $268,399.45 
4560376   CARLTON               OR      97111   SFD       7.500     7.234     $3,133.30    180       1-Feb-12           $336,979.20 
4560560   FREDERICK             MD      21701   SFD       7.000     6.734     $1,986.42    180       1-Feb-12           $220,302.75 
4560568   TIGARD                OR      97224   SFD       7.500     7.234     $2,317.54    180       1-Jan-12           $248,485.20 
4560660   LUTHERVILLE           MD      21093   SFD       7.500     7.234     $3,500.40    180       1-Jan-12           $375,312.07 



<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
61.43                                      0.250                            0.016 
76.32                                      0.250                            0.016 
58.59                                      0.250                            0.016 
51.03                                      0.250                            0.016 
80.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
58.54                                      0.250                            0.016 
72.92                                      0.250                            0.016 
76.63                                      0.250                            0.016 
80.00                                      0.250                            0.016 
45.09                                      0.250                            0.016 
26.48                                      0.250                            0.016 
69.05                                      0.250                            0.016 
68.80                                      0.250                            0.016 
63.95                                      0.250                            0.016 
39.74                                      0.250                            0.016 
78.70                                      0.250                            0.016 
86.75                    12                0.250                            0.016 
69.88                                      0.250                            0.016 
64.10                                      0.250                            0.016 
79.72                                      0.250                            0.016 
47.17                                      0.250                            0.016 
63.95                                      0.250                            0.016 
79.64                                      0.250                            0.016 
69.88                                      0.250                            0.016 
61.30                                      0.250                            0.016 
41.67                                      0.250                            0.016 
71.25                                      0.250                            0.016 
66.67                                      0.250                            0.016 
25.83                                      0.250                            0.016 
80.00                                      0.250                            0.016 
78.95                                      0.250                            0.016 
77.02                                      0.250                            0.016 
78.90     GD 1YR                           0.250                            0.016 
55.57                                      0.250                            0.016 
74.77                                      0.250                            0.016 
74.29                                      0.250                            0.016 
75.00                                      0.250                            0.016 
65.36                                      0.250                            0.016 
73.15                                      0.250                            0.016 
35.19                                      0.250                            0.016 
41.54                                      0.250                            0.016 
40.97                                      0.250                            0.016 
72.46                                      0.250                            0.016 
46.64                                      0.250                            0.016 
80.00                                      0.250                            0.016 
</TABLE>

<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4560780   SAN DIEGO             CA      92131   PUD       7.250     6.984     $4,883.82    180       1-Jan-12           $531,686.96 
4560945   ODESSA                FL      33556   SFD       8.000     7.734     $4,102.14    180       1-Feb-12           $428,009.53 
4561027   WYOMING               OH      45215   SFD       6.875     6.609     $2,051.27    180       1-Feb-12           $229,266.44 
4561040   CHERRY HILL           NJ      08002   SFD       7.875     7.609       $597.52    180       1-Jan-12            $62,429.97 
4561059   JOPLIN                MO      64804   SFD       7.375     7.109     $2,125.03    180       1-Feb-12           $230,294.66 
4561068   ENCINO                CA      91436   SFD       7.125     6.859     $5,887.91    180       1-Feb-12           $647,971.47 
4561152   LOS ANGELES           CA      90045   SFD       7.500     7.234     $2,150.67    180       1-Feb-12           $231,299.33 
4561160   RAYTOWN               MO      64133   SFD       7.875     7.609       $388.87    180       1-Jan-12            $40,663.38 
4561226   DANBURY               CT      06811   SFD       6.750     6.484     $2,026.45    180       1-Mar-12           $229,000.00 
4561240   NEWPORT BEACH         CA      92660   PUD       8.000     7.734     $3,034.20    180       1-Feb-12           $316,582.47 
4561312   SANTA BARBARA         CA      93105   SFD       7.250     6.984     $4,564.32    180       1-Mar-12           $500,000.00 
4561334   FALMOUTH              MA      02540   SFD       7.875     7.609     $2,513.40    180       1-Feb-12           $264,225.66 
4561347   THOUSAND OAKS         CA      91320   SFD       7.250     6.984     $2,394.44    180       1-Jan-12           $260,675.69 
4561356   LOVELAND              OH      45140   SFD       7.500     7.234     $3,244.55    180       1-Jan-12           $347,879.29 
4561399   DANVILLE              CA      94526   SFD       7.250     6.984     $2,227.39    180       1-Jan-12           $242,489.01 
4561403   SPOKANE               WA      99204   SFD       7.375     7.109     $4,047.66    180       1-Jan-12           $437,304.76 
4561429   PELHAM MANOR          NY      10803   SFD       6.875     6.609     $5,279.78    180       1-Mar-12           $592,000.00 
4561452   SANTA FE              NM      87501   LCO       7.500     7.234     $2,641.99    180       1-Feb-12           $282,139.26 
4561488   LOS ANGELES           CA      90027   SFD       7.750     7.484     $3,670.98    180       1-Jan-12           $387,658.89 
4561496   MENDHAM               NJ      07945   SFD       7.500     7.234     $4,244.79    180       1-Feb-12           $456,517.09 
4561571   SOUTHAMPTON           NY      11968   SFD       7.625     7.359     $2,335.33    180       1-Jan-12           $248,501.68 
4561692   PORTLAND              OR      97201   SFD       7.500     7.234     $2,190.07    180       1-Jan-12           $234,818.53 
4561884   CHARLOTTE             VT      05445   SFD       7.750     7.484     $3,294.47    180       1-Feb-12           $348,965.95 
4561901   FAIRFIELD             CT      06432   SFD       7.125     6.859     $2,717.50    180       1-Mar-12           $300,000.00 
4561966   EAST GREENWICH        RI      02818   SFD       7.000     6.734     $2,795.36    180       1-Feb-12           $309,814.17 
4562052   WOODINVILLE           WA      98072   SFD       7.375     7.109     $2,451.60    180       1-Feb-12           $265,686.26 
4562053   FREMONT               CA      94539   SFD       7.875     7.609     $3,509.27    180       1-Feb-12           $368,918.86 
4562070   MIDDLETOWN            NJ      07748   SFD       7.125     6.859     $2,409.52    180       1-Feb-12           $265,169.86 
4562109   PALOS VERDES ESTATES  CA      90274   SFD       7.625     7.359     $4,063.47    180       1-Feb-12           $433,700.59 
4562119   SANFORD               MI      48657   LCO       7.250     6.984     $2,811.62    180       1-Feb-12           $307,049.21 
4562375   SAINT LOUIS           MO      63141   SFD       7.500     7.234     $5,302.52    180       1-Mar-12           $572,000.00 
4562381   PLEASANTVILLE         NY      10570   SFD       7.625     7.359     $3,736.52    180       1-Feb-12           $398,805.15 
4562447   ROSWELL               GA      30075   SFD       7.500     7.234     $2,808.85    180       1-Jan-12           $301,164.08 
4562506   ANAHEIM               CA      92807   SFD       7.250     6.984     $3,871.46    180       1-Mar-12           $424,100.00 
4562715   GREAT FALLS           VA      22066   SFD       6.875     6.609     $2,675.57    180       1-Feb-12           $299,043.18 
4562718   NEW ORLEANS           LA      70130   SFD       7.500     7.234     $2,132.13    180       1-Feb-12           $229,305.37 
4562756   NORTHBROOK            IL      60062   SFD       8.125     7.859       $741.42    180       1-Feb-12            $76,779.93 
4562832   CLAREMONT             CA      91711   SFD       7.375     7.109     $5,979.51    180       1-Feb-12           $648,015.28 
4562859   BROOKLINE             MA      02146   LCO       7.125     6.859     $2,898.66    180       1-Feb-12           $319,001.34 
4562896   HOT SPRINGS VILLAGE   AR      71909   SFD       6.875     6.609     $2,452.60    180       1-Jan-12           $273,240.82 
4562897   PRIOR LAKE            MN      55372   SFD       7.625     7.359     $2,354.01    180       1-Jan-12           $250,489.70 
4562946   TUALATIN              OR      97062   SFD       7.125     6.859     $3,016.42    180       1-Jan-12           $330,915.36 
4562971   WEST HARTFORD         CT      06107   SFD       7.250     6.984       $593.37    180       1-Feb-12            $64,799.34 
4563016   DAVIDSONVILLE         MD      21035   SFD       8.000     7.734     $4,587.13    180       1-Jan-12           $477,216.49 
4563131   AUSTIN                TX      78733   SFD       7.250     6.984     $2,641.37    180       1-Jan-12           $287,558.18 
4563184   BARTLETT              IL      60103   SFD       7.125     6.859     $2,463.87    180       1-Feb-12           $271,151.13 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
78.10                                      0.250                            0.016 
85.00                    11                0.250                            0.016 
76.67                                      0.250                            0.016 
75.00                                      0.250                            0.016 
71.08                                      0.250                            0.016 
67.29                                      0.250                            0.016 
80.00                                      0.250                            0.016 
50.62                                      0.250                            0.016 
61.07                                      0.250                            0.016 
39.20                                      0.250                            0.016 
79.74                                      0.250                            0.016 
66.25                                      0.250                            0.016 
89.98                    01                0.250                            0.016 
69.88                                      0.250                            0.016 
80.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
47.50                                      0.250                            0.016 
69.64                                      0.250                            0.016 
78.81                                      0.250                            0.016 
55.56                                      0.250                            0.016 
75.00                                      0.250                            0.016 
71.43                                      0.250                            0.016 
66.67                                      0.250                            0.016 
79.92                                      0.250                            0.016 
77.25                                      0.250                            0.016 
42.53                                      0.250                            0.016 
69.09                                      0.250                            0.016 
30.00                                      0.250                            0.016 
80.00                                      0.250                            0.016 
76.57                                      0.250                            0.016 
65.57                                      0.250                            0.016 
74.91                                      0.250                            0.016 
69.30                                      0.250                            0.016 
43.80                                      0.250                            0.016 
69.70                                      0.250                            0.016 
35.81                                      0.250                            0.016 
67.71                                      0.250                            0.016 
71.11                                      0.250                            0.016 
50.02                                      0.250                            0.016 
74.34                                      0.250                            0.016 
68.66                                      0.250                            0.016 
58.04                                      0.250                            0.016 
82.76                                      0.250                            0.016 
79.99                                      0.250                            0.016 
80.00                                      0.250                            0.016 
</TABLE>



<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4563189   ALAMEDA               CA      94502   SFD       7.875     7.609     $2,617.73    180       1-Jan-12           $274,381.75 
4563483   GRAND RAPIDS          MI      49546   SFD       7.750     7.484     $2,532.98    180       1-Jan-12           $267,504.78 
4563529   LONG BRANCH           NJ      07740   SFD       8.250     7.984     $1,862.67    180       1-Mar-12           $192,000.00 
4563617   INDIANAPOLIS          IN      46236   SFD       7.875     7.609     $2,276.28    180       1-Feb-12           $239,298.72 
4563655   COCONUT GROVE         FL      33133   SFD       7.625     7.359     $3,269.46    180       1-Jan-12           $347,902.36 
4563659   LOS GATOS             CA      95032   SFD       6.875     6.609     $2,176.13    180       1-Feb-12           $243,021.79 
4563696   SPRINGBORO            OH      45066   SFD       7.875     7.609     $4,135.25    180       1-Feb-12           $434,726.00 
4563764   YARROW POINT          WA      98004   SFD       7.375     7.109     $5,059.58    180       1-Mar-12           $550,000.00 
4563801   WEST HEMPSTEAD        NY      11552   SFD       7.750     7.484     $1,129.54    180       1-Feb-12           $119,645.46 
4563836   FOXBORO               MA      02035   SFD       6.875     6.609     $3,032.31    180       1-Feb-12           $338,915.61 
4563909   VIDA                  OR      97488   SFD       7.500     7.234     $3,124.04    180       1-Feb-12           $335,982.21 
4564013   WEST HARRISON         NY      10604   SFD       7.250     6.984     $3,103.74    180       1-Feb-12           $338,950.43 
4564142   WALNUT                CA      91789   SFD       7.250     6.984     $2,545.52    180       1-Jan-12           $277,123.20 
4564151   SUGARLAND             TX      77479   SFD       6.875     6.609     $2,061.97    180       1-Feb-12           $230,462.61 
4564329   MILLBURN TOWNSHIP     NJ      07078   SFD       7.500     7.234     $5,925.47    180       1-Feb-12           $637,269.53 
4564362   MOUNTAIN VIEW         CA      94041   SFD       7.625     7.359     $2,942.51    180       1-Feb-12           $314,059.05 
4564592   LITTLETON             CO      80127   SFD       7.625     7.359     $5,604.78    180       1-Feb-12           $598,207.72 
4564719   COLFAX                CA      95713   SFD       8.000     7.734     $2,909.97    180       1-Feb-12           $303,620.03 
4565032   JAMAICA               NY      11432   SFD       8.000     7.734     $2,828.74    180       1-Mar-12           $296,000.00 
4565167   SUNNYVALE             CA      94087   SFD       7.500     7.234     $2,132.13    180       1-Feb-12           $229,305.37 
4565254   ROSWELL               GA      30075   SFD       7.375     7.109     $2,027.52    180       1-Feb-12           $219,727.02 
4565318   FORT LAUDERDALE       FL      33316   SFD       8.375     8.109     $4,887.14    180       1-Feb-12           $498,602.44 
4565325   MERRICK               NY      11566   SFD       8.500     8.234     $1,457.42    180       1-Feb-12           $147,590.91 
4565382   RIO RANCHO            NM      87124   SFD       7.250     6.984     $2,136.10    180       1-Mar-12           $234,000.00 
4565496   LIGHTHOUSE POINT      FL      33064   SFD       7.500     7.234     $2,187.75    180       1-Mar-12           $236,000.00 
4565530   LYNNWOOD              WA      98037   SFD       7.375     7.109     $2,023.83    180       1-Feb-12           $219,328.25 
4565708   EDEN PRAIRIE          MN      55347   THS       7.250     6.984     $2,122.41    180       1-Feb-12           $231,782.28 
4565757   MIAMI                 FL      33143   SFD       7.500     7.234     $2,475.13    180       1-Jan-12           $265,382.20 
4565759   EAST GRAND RAPIDS     MI      49506   SFD       6.875     6.609     $2,568.55    180       1-Mar-12           $288,000.00 
4565787   PAWLEYS ISLAND        SC      29585   SFD       8.250     7.984     $3,251.43    180       1-Feb-12           $334,202.73 
4565933   WINNETKA              IL      60093   SFD       7.000     6.734     $2,516.72    180       1-Mar-12           $280,000.00 
4565963   OKLAHOMA CITY         OK      73170   SFD       7.625     7.359     $2,675.35    180       1-Feb-12           $285,544.48 
4566041   OAKLAND               CA      94705   SFD       7.250     6.984     $4,701.25    180       1-Mar-12           $515,000.00 
4566107   YORBA LINDA           CA      92687   SFD       7.750     7.484     $3,652.15    180       1-Dec-11           $384,538.80 
4566113   FRESNO                CA      93711   SFD       7.900     7.634     $2,590.35    180       1-Dec-11           $270,155.42 
4566120   RIPON                 CA      95366   SFD       7.700     7.434     $2,890.32    180       1-Dec-11           $305,240.41 
4566125   BAYSIDE               NY      11364   SFD       7.000     6.734     $1,977.43    180       1-Jan-12           $218,607.76 
4566236   BALDWIN               NY      11510   SFD       7.500     7.234     $2,079.76    180       1-Feb-12           $221,504.25 
4566302   LAS VEGAS             NV      89113   SFD       7.625     7.359     $2,615.57    180       1-Feb-12           $278,817.12 
4566312   SOLANA BEACH          CA      92075   LCO       7.625     7.359     $3,362.87    180       1-Feb-12           $358,924.63 
4566403   CROWNSVILLE           MD      21032   SFD       7.375     7.109     $2,033.04    180       1-Mar-12           $221,000.00 
4566521   ORANGE                CA      92869   SFD       7.250     6.984     $2,122.41    180       1-Mar-12           $232,500.00 
4566535   NORTHRIDGE            CA      91326   SFD       7.500     7.234     $1,837.81    180       1-Feb-12           $197,651.25 
4566569   FLOWERY BRANCH        GA      30542   SFD       7.375     7.109     $2,759.77    180       1-Feb-12           $299,083.98 
4566651   MEMPHIS               TN      38125   SFD       7.750     7.484     $4,588.72    180       1-Feb-12           $486,059.72 
4566755   SARATOGA              CA      95070   SFD       8.250     7.984     $4,911.34    180       1-Jan-12           $503,378.42 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
77.09                                      0.250                            0.016 
72.53                                      0.250                            0.016 
80.00                                      0.250                            0.016 
74.53                                      0.250                            0.016 
48.28                                      0.250                            0.016 
66.12                                      0.250                            0.016 
61.24                                      0.250                            0.016 
67.24                                      0.250                            0.016 
63.83                                      0.250                            0.016 
80.00                                      0.250                            0.016 
74.89                                      0.250                            0.016 
69.39                                      0.250                            0.016 
50.70                                      0.250                            0.016 
80.00     GD 3YR                           0.250                            0.016 
80.00                                      0.250                            0.016 
75.00                                      0.250                            0.016 
68.57                                      0.250                            0.016 
73.37                                      0.250                            0.016 
80.00                                      0.250                            0.016 
66.67                                      0.250                            0.016 
53.11                                      0.250                            0.016 
55.56                                      0.250                            0.016 
80.00                                      0.250                            0.016 
73.13                                      0.250                            0.016 
80.00                                      0.250                            0.016 
68.11                                      0.250                            0.016 
69.92                                      0.250                            0.016 
76.29                                      0.250                            0.016 
80.00                                      0.250                            0.016 
90.00                                      0.250                            0.016 
77.83                                      0.250                            0.016 
80.00                                      0.250                            0.016 
63.58                                      0.250                            0.016 
80.00                                      0.250                            0.016 
90.00                    06                0.250                            0.016 
61.60                                      0.250                            0.016 
74.96                                      0.250                            0.016 
56.09                                      0.250                            0.016 
31.28                                      0.250                            0.016 
72.00                                      0.250                            0.016 
73.18                                      0.250                            0.016 
67.88                                      0.250                            0.016 
65.00                                      0.250                            0.016 
73.17                                      0.250                            0.016 
75.00                                      0.250                            0.016 
75.00                                      0.250                            0.016 
</TABLE>

<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4566774   LAGUNA NIGUEL         CA      92677   SFD       7.875     7.609     $3,262.67    180       1-Feb-12           $342,994.83 
4566839   OAKLAND               CA      94611   SFD       7.375     7.109     $7,819.35    180       1-Feb-12           $847,404.61 
4566844   PROVIDENCE            RI      02906   SFD       8.250     7.984     $4,579.07    180       1-Feb-12           $470,665.93 
4566870   FORT WORTH            TX      76107   SFD       7.625     7.359     $2,802.39    180       1-Feb-12           $299,103.86 
4567063   WINNETKA              IL      60093   SFD       6.750     6.484     $3,548.49    180       1-Mar-12           $401,000.00 
4567089   BEND                  OR      97701   SFD       7.500     7.234     $2,549.28    180       1-Mar-12           $275,000.00 
4567099   CAPE CORAL            FL      33904   SFD       8.000     7.734     $1,200.30    180       1-Feb-12           $125,237.03 
4567248   WALPOLE               MA      02081   SFD       7.000     6.734     $3,768.34    180       1-Mar-12           $419,250.00 
4567495   REDMOND               WA      98053   SFD       7.500     7.234       $834.31    180       1-Feb-12            $89,728.19 
4567735   ALPHARETTA            GA      30202   SFD       6.750     6.484     $2,168.03    180       1-Mar-12           $245,000.00 
4567738   VISTA                 CA      92084   SFD       7.375     7.109     $2,806.69    180       1-Jan-12           $300,014.81 
4567764   MARIETTA              GA      30068   SFD       7.750     7.484     $1,054.23    180       1-Feb-12           $111,669.10 
4567767   TULSA                 OK      74133   SFD       7.875     7.609     $3,497.41    180       1-Feb-12           $367,672.51 
4567825   LOS ANGELES           CA      90272   SFD       7.450     7.184     $4,505.35    180       1-Jan-12           $484,533.25 
4567832   GOLDSBORO             NC      27534   SFD       7.750     7.484     $3,494.02    180       1-Mar-12           $371,200.00 
4567875   SAN JOSE              CA      95117   SFD       7.375     7.109     $2,023.84    180       1-Jan-12           $218,652.36 
4567922   COVINGTON             LA      70433   SFD       7.750     7.484     $4,480.47    180       1-Feb-12           $474,593.70 
4567933   ARLINGTON             VA      22207   SFD       7.125     6.859     $2,853.37    180       1-Feb-12           $314,016.95 
4567953   WAYNE                 NJ      07470   SFD       7.875     7.609     $1,327.83    180       1-Mar-12           $140,000.00 
4568035   BEVERLY HILLS         CA      90212   LCO       8.375     8.109     $2,805.22    180       1-Feb-12           $286,197.80 
4568112   SAYREVILLE            NJ      08872   SFD       8.375     8.109     $1,720.27    180       1-Feb-12           $175,508.07 
4568141   CENTERVILLE           OH      45459   SFD       8.000     7.734     $2,408.24    180       1-Feb-12           $251,271.76 
4568217   LONGMEADOW            MA      01106   SFD       8.500     8.234       $861.65    180       1-Feb-12            $87,258.14 
4568256   ATLANTA               GA      30305   SFD       7.625     7.359     $2,802.39    180       1-Feb-12           $299,103.86 
4568556   LONG VALLEY           NJ      07853   SFD       8.000     7.734     $2,288.79    180       1-Mar-12           $239,500.00 
4568819   MIDLOTHIAN            VA      23113   SFD       8.000     7.734     $2,618.49    180       1-Mar-12           $274,000.00 
4568839   MIAMI                 FL      33101   SFD       7.875     7.609     $2,955.37    180       1-Mar-12           $311,600.00 
4568857   ROCKVILLE CENTRE      NY      11570   SFD       7.625     7.359     $2,099.46    180       1-Mar-12           $224,750.00 
4569207   RUSSELL               OH      44072   SFD       7.750     7.484     $3,332.12    180       1-Feb-12           $352,954.13 
4569485   BELLE MEADE           NJ      08502   SFD       7.625     7.359     $2,354.01    180       1-Mar-12           $252,000.00 
4569672   BEAVER CREEK          CO      81620   SFD       8.000     7.734     $2,379.57    180       1-Feb-12           $248,280.43 
4569716   MILLBRAE              CA      94030   SFD       7.500     7.234     $4,310.61    180       1-Jan-12           $462,182.51 
4569887   WELLINGTON            FL      33414   SFD       8.100     7.834       $865.30    180       1-Dec-11            $89,221.37 
4569904   BOCA RATON            FL      33486   SFD       8.200     7.934       $725.43    180       1-Dec-11            $74,356.83 
4569920   LOS ANGELES           CA      91403   SFD       7.250     6.984     $2,972.29    180       1-Jan-12           $323,583.67 
4569930   ARDSLEY               NY      10502   SFD       7.100     6.834     $2,500.75    180       1-Jan-12           $274,765.29 
4569939   RIALTO                CA      92377   SFD       8.400     8.134       $244.73    180       1-Oct-11            $24,340.59 
4569950   UNIVERSITY PARK       TX      75225   SFD       7.350     7.084     $2,617.76    180       1-Jan-12           $283,250.38 
4569958   NEWPORT BEACH         CA      92660   SFD       7.200     6.934     $4,077.01    180       1-Jan-12           $445,213.65 
4569974   AUSTIN                TX      78749   SFD       7.950     7.684     $1,286.24    180       1-Nov-11           $133,416.91 
4569984   PEMBROKE PINES        FL      33027   HCO       8.100     7.834       $522.06    180       1-Nov-11            $53,671.54 
4569996   HOUSTON               TX      77096   SFD       7.550     7.284       $836.88    180       1-Jan-12            $89,457.04 
4570006   CYPRESS               CA      90630   SFD       7.650     7.384     $1,440.76    180       1-Jan-12           $153,079.05 
4570013   OAKLAND               CA      94608   SFD       8.300     8.034       $588.70    180       1-Oct-11            $59,636.94 
4570033   BETHANY BEACH         DE      19930   PUD       7.875     7.609     $2,371.13    180       1-Mar-12           $250,000.00 
4570064   MURRIETA              CA      92562   SFD       8.000     7.734     $2,675.83    180       1-Feb-12           $279,190.84 


<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
80.00                                      0.250                            0.016  
65.43                                      0.250                            0.016  
80.00                                      0.250                            0.016  
44.12                                      0.250                            0.016  
56.48                                      0.250                            0.016  
52.38                                      0.250                            0.016  
80.00                                      0.250                            0.016  
67.70                                      0.250                            0.016  
35.03                                      0.250                            0.016  
60.49                                      0.250                            0.016  
90.00                    17                0.250                            0.016  
70.00                                      0.250                            0.016  
55.87                                      0.250                            0.016  
65.00                                      0.250                            0.016  
80.00                                      0.250                            0.016  
57.89                                      0.250                            0.016  
70.00                                      0.250                            0.016  
59.55                                      0.250                            0.016  
46.67                                      0.250                            0.016  
79.94                                      0.250                            0.016  
80.00                                      0.250                            0.016  
90.00                    13                0.250                            0.016  
70.00                                      0.250                            0.016  
67.87                                      0.250                            0.016  
78.01                                      0.250                            0.016  
86.98                                      0.250                            0.016  
76.00                                      0.250                            0.016  
65.14                                      0.250                            0.016  
37.26                                      0.250                            0.016  
80.00                                      0.250                            0.016  
70.00                                      0.250                            0.016  
69.92                                      0.250                            0.016  
69.23                                      0.250                            0.016  
18.07                                      0.250                            0.016  
80.00                                      0.250                            0.016  
76.81                                      0.250                            0.016  
20.33                                      0.250                            0.016  
53.27                                      0.250                            0.016  
80.00                                      0.250                            0.016  
75.00                                      0.250                            0.016  
74.90                                      0.250                            0.016  
75.00                                      0.250                            0.016  
42.31                                      0.250                            0.016  
63.68                                      0.250                            0.016  
58.00                                      0.250                            0.016  
74.07                                      0.250                            0.016  
</TABLE>

<PAGE>

NASCOR
NMI / 1997-5  Exhibit F-2
15 YEAR FIXED RATE NON-RELOCATION AND RELOCATION LOANS

<TABLE>
<CAPTION>
(i)       (ii)                                  (iii)     (iv)      (v)       (vi)         (vii)     (viii)             (ix)        
- -----     --------------------- -----   ----    --------  --------  --------  ----------   --------  ----------         ----------- 
                                                                    NET                                                 CUT-OFF
MORTGAGE                                                  MORTGAGE  MORTGAGE  CURRENT      ORIGINAL  SCHEDULED          DATE        
LOAN                                    ZIP     PROPERTY  INTEREST  INTEREST  MONTHLY      TERM TO   MATURITY           PRINCIPAL   
NUMBER    CITY                  STATE   CODE    TYPE      RATE      RATE      PAYMENT      MATURITY  DATE               BALANCE     
- --------  --------------------- -----   ----    --------  --------  --------  ----------   --------  -----------        ----------- 
<S>       <C>                   <C>     <C>     <C>       <C>       <C>       <C>          <C>       <C>                <C>  
4570082   LOS ANGELES           CA      90024   LCO       7.750     7.484     $1,008.11    180       1-Feb-12           $106,783.58 
4570113   SALT LAKE CITY        UT      84121   SFD       7.250     6.984     $2,738.59    180       1-Mar-12           $300,000.00 
4570120   THE SEA RANCH         CA      95497   PUD       7.000     6.734     $2,656.94    180       1-Jan-12           $293,729.34 
4570192   COLUMBUS              OH      43221   SFD       7.375     7.109     $2,115.83    180       1-Feb-12           $229,287.65 
4570518   MIAMI                 FL      33156   SFD       7.375     7.109     $2,060.63    180       1-Mar-12           $224,000.00 
4570554   FARMINGTON            CT      06032   SFD       6.750     6.484     $2,212.28    180       1-Mar-12           $250,000.00 
4570788   DUNWOODY              GA      30350   SFD       6.875     6.609     $2,158.74    180       1-Mar-12           $242,050.00 
4570869   GAINESVILLE           GA      30504   SFD       7.875     7.609     $6,164.92    180       1-Feb-12           $648,100.71 
4571448   TAOS                  NM      87571   SFD       7.375     7.109     $2,051.43    180       1-Mar-12           $223,000.00 
4571860   ARCADIA               CA      91006   SFD       7.250     6.984     $2,738.59    180       1-Mar-12           $300,000.00 
4572409   MASAPEQUA             NY      11758   SFD       7.750     7.484     $1,882.56    180       1-Mar-12           $200,000.00 
4572517   GLENDALE              CA      91207   SFD       7.625     7.359     $3,998.08    180       1-Feb-12           $426,721.51 
4572547   ATLANTA               GA      30305   SFD       7.125     6.859     $2,717.49    180       1-Mar-12           $300,000.00 
4573935   FARMERS BRANCH        TX      75234   SFD       7.375     7.109     $2,759.77    180       1-Mar-12           $300,000.00 
4574632   BOSTON                MA      02116   LCO       7.375     7.109     $2,759.77    180       1-Feb-12           $299,083.98 
4574717   SARATOGA              CA      95070   SFD       7.750     7.484     $3,294.47    180       1-Mar-12           $350,000.00 
4574720   LOS ANGELES           CA      90024   SFD       7.875     7.609     $2,617.25    180       1-Feb-12           $275,143.68 
4574790   SYLMAR                CA      91342   SFD       7.500     7.234     $1,911.97    180       1-Feb-12           $205,627.10 
4576169   SAN JUAN CAPISTRANO   CA      92675   SFD       8.250     7.984     $3,832.05    180       1-Feb-12           $391,733.82 



                                                                                                                     $88,482,178.91
COUNT:                    295
WAC:              7.520889753
WAM:               178.285823
WALTV:            69.16058986

<CAPTION>
(x)       (xi)           (xii)             (xiii)         (xiv)             (xv)         
- ------    ---------      ----------        --------       -----------       -----------  
                                                                                         
                         MORTGAGE                         T.O.P.            MASTER       
                         INSURANCE         SERVICE        MORTGAGE          SERVICE      
LTV       SUBSIDY        CODE              FEE            LOAN              FEE          
- ------    ---------      ----------        --------       -----------       -----------  
<S>       <C>            <C>               <C>                              <C>          
70.23                                      0.250                            0.016  
60.45                                      0.250                            0.016  
80.00                                      0.250                            0.016  
56.10                                      0.250                            0.016  
80.00                                      0.250                            0.016  
36.23     GD 2YR                           0.250                            0.016  
89.75                    33                0.250                            0.016  
74.71                                      0.250                            0.016  
69.69                                      0.250                            0.016  
50.00                                      0.250                            0.016  
70.18                                      0.250                            0.016  
79.26                                      0.250                            0.016  
32.79                                      0.250                            0.016  
80.00                                      0.250                            0.016  
79.58                                      0.250                            0.016  
46.39                                      0.250                            0.016  
78.84                                      0.250                            0.016  
75.00                                      0.250                            0.016  
79.00                                      0.250                            0.016  
</TABLE>

<PAGE>

                                   EXHIBIT F-3


            [Schedule of Mortgage Loans Serviced by Other Servicers]

NASCOR
NMI / 1997-5  Exhibit F-3 (Part A)
15 YEAR FIXED RATE NON-RELOCATION AND RELOCAITON LOANS

<TABLE>
<CAPTION>

(i)            (ii)                 (iii)         (iv)       (v)             (vi)          (vii)             (viii)
- ---------      -------------        -------       -------    -----------     ----------    ---------        ------------
                                                                                             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>         
4570687         ATHENS                  GA         30605         SFD            8.87         8.60            $1,006.84180
4517729         NORTH SALEM             NY         10560         SFD            7.50         7.23            $4,820.47180
4557858         MILPITAS                CA         95035         SFD            8.00         7.73            $3,189.49180
4557942         CALABASAS               CA         91302         SFD            7.75         7.48            $2,729.70180
4557955         FAIRFAX                 VA         22030         SFD            7.50         7.23            $2,731.91180
4557979         WASHINGTON              DC         20007         SFD            8.37         8.10            $2,072.15180
4557997         LOWER MATECUMBE         FL         33036         SFD            8.12         7.85            $3,697.47180
4558028         NEW YORK                NY         10028         COP            8.12         7.85              $337.01180
4558381         NEW YORK                NY         10021         HCO            8.37         8.10            $3,000.70180
4558422         FORT LAUDERDALE         FL         33327         SFD            7.87         7.60            $3,319.58180
4558470         SILVER SPRING           MD         20905         SFD            7.50         7.23            $4,050.59180
4547916         WRENTHAM                MA         02093         SFD            8.12         7.85            $3,755.24180
4547928         AUSTIN                  TX         78746         SFD            8.12         7.85            $3,851.53180
4548093         PINE RIVER              MN         56474         SFD            7.87         7.60            $2,502.96180
4557084         GOLDEN VALLEY           MN         55416         SFD            7.75         7.48            $2,870.90180
4558394         BROOKLYN PARK           MN         55443         THS            8.12         7.85              $866.60180
4563247         CHICAGO                 IL         60614         HCO            7.62         7.35            $2,022.40180
4570363         TAMPA                   FL         33609         SFD            7.87         7.60            $2,560.81180
4570392         LOWER GWYNEDD           PA         19436         SFD            7.37         7.10            $3,403.72180
4570395         GREENSBORO              NC         27408         SFD            7.87         7.60            $2,940.19180
4570401         PENHOOK                 VA         24137         SFD            8.00         7.73            $2,866.96180
4570405         LOS ALTOS               CA         94024         SFD            7.87         7.60            $3,094.80180
4570406         RALEIGH                 NC         27614         SFD            7.75         7.48            $3,553.32180
4570421         STANLEY                 NC         28164         PUD            7.87         7.60            $2,234.55180
4570425         CAMPBELL                CA         95008         SFD            8.12         7.85            $2,542.01180
4570429         THE WOODLANDS           TX         77380         SFD            7.75         7.48            $5,271.15180
4570430         NAPERVILLE              IL         60564         PUD            8.25         7.98            $2,697.00180
4570435         EVANS                   GA         30809         SFD            8.37         8.10            $3,176.64180
4570436         MOUNTAIN LAKES          NJ         07046         SFD            7.75         7.48            $4,619.78180
4570445         COLUMBIA                SC         29205         SFD            7.75         7.48            $2,788.53180
4570447         MOORESVILLE             NC         28115         SFD            7.62         7.35            $3,993.41180
4570463         MIAMI BEACH             FL         33139         HCO            7.87         7.60            $3,973.53180
4570470         SPRING LAKE             NJ         07762         SFD            7.50         7.23            $4,635.06180
4570640         MCDONOUGH               GA         30253         PUD            8.00         7.73            $2,126.32180
4570642         MOUNTAIN VIEW           CA         94040         SFD            7.87         7.60            $2,464.08180
4564251         CHILLICOTHE             OH         45601         SFD            8.12         7.85            $3,514.53180
4569689         BOCA RATON              FL         33498         SFD            8.12         7.85            $1,261.38180
4568779         NEW BUFFALO             MI         49117         SFD            7.12         6.85            $4,076.24180
4545195         SOUTHFIELD              MI         48075         SFD            8.75         8.48            $1,858.98180
4568671         WASHINGTON              DC         20008         SFD            7.50         7.23            $3,708.05180
4568682         MASON                   OH         45040         SFD            7.62         7.35            $2,288.62180
4568769         PALATINE                IL         60067         SFD            7.75         7.48            $2,164.94180
4569653         LANCASTER               OH         43130         SFD            7.62         7.35            $3,101.32180
4572107         TAMPA                   FL         33629         SFD            8.00         7.73            $9,556.53180
4572135         ASHLAND                 KY         41101         SFD            7.62         7.35            $3,035.93180
4572261         MARIETTA                GA         30068         SFD            7.50         7.23            $2,580.81180
4572276         UNIONTOWN               OH         44685         SFD            7.50         7.23            $2,039.43180
4572759         NASHVILLE               TN         37215         SFD            7.62         7.35            $2,615.57180
4572767         GLENCOE                 IL         60022         SFD            7.50         7.23            $2,252.64180
4556476         BOCA RATON              FL         33496         SFD            8.50         8.23            $4,339.50120
4556872         CHARLOTTE               NC         28270         SFD            8.12         7.85            $2,310.92180
4573103         JUPITER                 FL         33458         SFD            8.00         7.73            $2,628.04180
</TABLE>

<TABLE>
<CAPTION>

              (viii)           (ix)               (x)        (xi)       (xii)     (xiii)    (xiv)        (xv)
- ----------   ----------        ---------------   -------     -------    --------  -------   --------     --------
                                CUT-OFF
MORTGAGE      SCHEDULED          DATE                                  MORTGAGE              T.O.P.       MASTER
LOAN          MATURITY          PRINCIPAL                              INSURANCE   SERVICE  MORTGAGE     SERVICE
NUMBER          DATE             BALANCE            LTV      SUBSIDY     CODE        FEE      LOAN         FEE
- ----------   ----------        ---------------   -------     -------    --------  -------   --------     --------
<C>            <C>             <C>                <C>        <C>        <C>        <C>      <C>           <C>   
4570687        1-Jun-11        $ 97,522.354.05                                      0.25                   0.0160
4517729        1-Mar-11        $500,492.820.00                                      0.25                   0.0160
4557858        1-Nov-11        $329,853.275.00                                      0.25                   0.0160
4557942        1-Nov-11        $286,539.564.44                                      0.25                   0.0160
4557955        1-Dec-10        $280,749.276.95                                      0.25                   0.0160
4557979        1-Oct-11        $208,995.580.00                                      0.25                   0.0160
4557997        1-Oct-11        $378,437.869.82                                      0.25                   0.0160
4558028        1-Oct-11        $34,086.224.14                                       0.25                   0.0160
4558381        1-Sep-11        $301,760.747.23                                      0.25                   0.0160
4558422        1-Nov-11        $345,868.779.01                                      0.25                   0.0160
4558470        1-Nov-11        $431,621.789.99                           33         0.25                   0.0160
4547916        1-Sep-11        $383,198.075.00                                      0.25                   0.0160
4547928        1-Sep-11        $393,023.666.67                                      0.25                   0.0160
4548093        1-Dec-11        $261,571.479.99                                      0.25                   0.0160
4557084        1-Jan-12        $303,191.976.25                                      0.25                   0.0160
4558394        1-Nov-11        $88,960.552.52                                       0.25                   0.0160
4563247        1-Mar-12        $216,500.066.62                                      0.25                   0.0160
4570363        1-Jan-12        $268,416.954.00                                      0.25                   0.0160
4570392        1-Sep-11        $362,635.679.57                                      0.25                   0.0160
4570395        1-Nov-11        $306,340.943.97                                      0.25                   0.0160
4570401        1-Oct-11        $295,607.080.00                                      0.25                   0.0160
4570405        1-Dec-11        $323,420.840.79                                      0.25                   0.0160
4570406        1-Dec-11        $374,132.476.73                                      0.25                   0.0160
4570421        1-Dec-11        $233,521.138.75                                      0.25                   0.0160
4570425        1-Nov-11        $260,939.874.37                                      0.25                   0.0160
4570429        1-Dec-11        $555,004.480.00                                      0.25                   0.0160
4570430        1-Dec-11        $275,626.579.43                                      0.25                   0.0160
4570435        1-Nov-11        $321,328.165.00                                      0.25                   0.0160
4570436        1-Dec-11        $486,421.756.09                                      0.25                   0.0160
4570445        1-Dec-11        $293,607.275.00                                      0.25                   0.0160
4570447        1-Jan-12        $424,937.890.00                            12        0.25                   0.0160
4570463        1-Jan-12        $416,493.680.00                                      0.25                   0.0160
4570470        1-Jan-12        $496,970.476.92                                      0.25                   0.0160
4570640        1-Jan-12        $221,209.770.63                                      0.25                   0.0160
4570642        1-Dec-11        $257,507.666.96                                      0.25                   0.0160
4564251        1-Feb-12        $363,956.873.00                                      0.25                   0.0160
4569689        1-Dec-11        $129,869.146.79                                      0.25                   0.0160
4568779        1-Jan-12        $447,182.973.95                                      0.25                   0.0160
4545195        1-Nov-11        $179,400.979.93                                      0.25                   0.0160
4568671        1-Jan-12        $397,576.343.24                                      0.25                   0.0160
4568682        1-Jan-12        $243,531.679.80                                      0.25                   0.0160
4568769        1-Jan-12        $228,636.568.66                                      0.25                   0.0160
4569653        1-Jan-12        $330,010.270.64                                      0.25                   0.0160
4572107        1-Feb-12        $997,110.160.79                                      0.25                   0.0160
4572135        1-Feb-12        $273,711.472.02                                      0.25                   0.0160
4572261        1-Feb-12        $277,559.171.38                                      0.25                   0.0160
4572276        1-Feb-12        $219,335.573.09                                      0.25                   0.0160
4572759        1-Feb-12        $279,163.659.57                                      0.25                   0.0160
4572767        1-Feb-12        $242,266.155.23                                      0.25                   0.0160
4556476        1-Nov-06        $342,479.270.00                                      0.25                   0.0160
4556872        1-Oct-11        $236,523.675.00                                      0.25                   0.0160
4573103        1-Dec-11        $272,599.966.27                                      0.25                   0.0160



                                                                                                $16,477,409.51
</TABLE>

COUNT:                    52
WAC:                       7.843300327
WAM:                     175.2523989
WALTV:                    67.61774264

<PAGE>

                                  EXHIBIT G


                               REQUEST FOR RELEASE
                       (for Trust Administrator/Custodian)


Loan Information

     Name of Mortgagor:                      -----------------------------

     Servicer
     Loan No.:                               -----------------------------

Custodian/Trust Administrator

     Name:                                   -----------------------------

     Address:                                -----------------------------

                                             -----------------------------
     Custodian/Trust Administrator
     Mortgage File No.:                      -----------------------------

Seller

     Name:                                   -----------------------------

     Address:                                -----------------------------

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

     Certificates:                           Mortgage Pass-Through Certificates,
                                             Series 1997-5


     The undersigned  Master Servicer hereby  acknowledges  that it has received
from First Union National Bank of North Carolina, as Trust Administrator for the
Holders of Mortgage  Pass-Through  Certificates,  Series  1997-5,  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 March 27, 1997 (the "Pooling and Servicing
Agreement") among the Trust  Administrator,  the Seller, the Master Servicer and
Firstar Trust Company, as Trustee.

(    ) 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 Trust
     Administrator 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 Trust Administrator,
     on behalf 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:  --------------------------

                                   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 1997-5, Class A-R Certificate (the "Class 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 the  fiduciary  provisions  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 A-R Certificate as they
become due.

     5. That the Purchaser  understands  that it may incur tax liabilities  with
respect to the Class A-R  Certificate  in excess of cash flows  generated by the
Class A-R Certificate.

     6. That the Purchaser  will not transfer the Class 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 not a Non-U.S.  Person or (ii) is a Non-U.S.
Person that holds the Class A-R  Certificate in connection with the conduct of a
trade or business  within the United States and has furnished the transferor and
the Trust  Administrator 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  Trust
Administrator  an opinion of a nationally  recognized  tax counsel to the effect
that the transfer of the Class 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 A-R  Certificate  will not be disregarded for federal
income  tax  purposes.  "Non-U.S.  Person"  means  an  individual,  corporation,
partnership  or other  person  other  than a citizen or  resident  of the United
States,  a  corporation,  partnership or other entity created or organized in or
under the laws of the United States or any  political  subdivision  thereof,  an
estate that is subject to U.S.  federal  income tax  regardless of the source of
its income or a trust if (i) for taxable years beginning after December 31, 1996
(or after August 20, 1996,  if the trustee has made an applicable  election),  a
court within the United States is able to exercise primary  supervision over the
administration of such trust, and one or more United States fiduciaries have the
authority  to control all  substantial  decisions  of such trust or (ii) for all
other taxable years, such trust is subject to U.S. federal income tax regardless
of the source of its income.

     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 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 A-R Certificate]





                                     [Date]




First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288

     Re:  Norwest Asset Securities Corporation, 
          Series 1997-5, Class 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 1997-5
                    CLASS [A-WIO][B-3][B-4][B-5] CERTIFICATES


                               TRANSFEREE'S LETTER



                                           ----------------- --, ----

First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288


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 1997-5, Class
[A-WIO][B-3][B-4][B-5]    Certificates   (the   "Class    [A-WIO][B-3][B-4][B-5]
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 March 27, 1997 (the  "Pooling  and  Servicing
Agreement") among Norwest Asset Securities  Corporation,  as seller  ("NASCOR"),
Norwest Bank Minnesota,  National  Association,  as master servicer (the "Master
Servicer"),  First Union National Bank of North Carolina, as trust administrator
(the  "Trust   Administrator")  and  Firstar  Trust  Company,  as  trustee  (the
"Trustee"),  of  Norwest  Asset  Securities  Corporation  Mortgage  Pass-Through
Certificates, Series 1997-5.

     Section 2.  Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to NASCOR, the
Master Servicer and the Trust Administrator 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  [A-WIO][B-3][B-4][B-5]
     Certificates,  and to enter  into this  Agreement,  and duly  executed  and
     delivered this Agreement.

          (b)  The  Purchaser  is  acquiring  the  Class  [A-WIO][B-3][B-4][B-5]
     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
     [A-WIO][B-3][B-4][B-5]   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   [A-WIO][B-3][B-4][B-5]
     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 [A-WIO][B-3][B-4][B-5]  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  NASCOR  concerning  the  Class
     [A-WIO][B-3][B-4][B-5]  Certificates and all matters relating thereto,  and
     obtain any additional  information  (including  documents)  relevant to its
     decision to purchase  the Class  [A-WIO][B-3][B-4][B-5]  Certificates  that
     NASCOR possesses or can possess without  unreasonable effort or expense and
     (c) it has undertaken its own independent analysis of the investment in the
     Class  [A-WIO][B-3][B-4][B-5]  Certificates.  The Purchaser will not use or
     disclose any information it receives in connection with its purchase of the
     Class  [A-WIO][B-3][B-4][B-5]  Certificates other than in connection with a
     subsequent sale of Class [A-WIO][B-3][B-4][B-5] Certificates.

          (e) Either (i) the  Purchaser is not an employee  benefit plan subject
     to the  fiduciary  responsibility  provisions  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-3][B-4][B-5] Certificates only] if the Purchaser
     is an  insurance  company,  the source of funds used to purchase  the Class
     [B-3][B-4][B-5]  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) and 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  or (iii) the Purchaser has provided
     (a)  a  "Benefit  Plan  Opinion"  satisfactory  to  NASCOR  and  the  Trust
     Administrator  of the Trust Estate and (b) such other  opinions of counsel,
     officers'  certificates and agreements as NASCOR 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 Trust  Administrator,  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
     [A-WIO][B-3][B-4][B-5] Certificates is in compliance therewith.

     Section 3. Transfer of Class [A-WIO][B-3][B-4][B-5] Certificates.

          a) The  Purchaser  understands  that the Class  [A-WIO][B-3][B-4][B-5]
     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 [A-WIO][B-3][B-4][B-5]  Certificates are registered under the Act
     and  applicable  state law or  unless an  exemption  from  registration  is
     available.  The Purchaser  further  understands  that neither  NASCOR,  the
     Master  Servicer nor the Trust  Administrator  is under any  obligation  to
     register the Class [A-WIO][B-3][B-4][B-5] 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
     Trust  Administrator shall require, in order to assure compliance with such
     laws, that the Certificateholder's prospective transferee certify to NASCOR
     and the Trust Administrator 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 Trust  Administrator  or NASCOR  may,  if such  transfer is made within
     three years from the later of (a) the Closing  Date or (b) the last date on
     which  NASCOR 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
     Trust   Administrator,   the   Master   Servicer   or   NASCOR.   Any  such
     Certificateholder  desiring to effect such transfer shall,  and does hereby
     agree to,  indemnify  the  Trustee,  the Trust  Administrator,  the  Master
     Servicer,  any Paying Agent acting on behalf of the Trust Administrator and
     NASCOR  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 [A-WIO][B-3][B-4][B-5] Certificate shall be
     made unless the transferee provides NASCOR and the Trust Administrator with
     a Transferee's Letter, substantially in the form of this Agreement.

          (c) The Purchaser  acknowledges that its Class  [A-WIO][B-3][B-4][B-5]
     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 1997-5
                       CLASS [M] [B-1] [B-2] CERTIFICATES


                               TRANSFEREE'S LETTER
                               -------------------




                                      ---------------- --, ----

First Union National Bank of North Carolina
230 South Tryon Street
Charlotte, North Carolina  28288


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 1997-5, Class
[M] [B-1] [B-2]  Certificates (the "Class [M] [B-1] [B-2]  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 March 27, 1997 (the  "Pooling  and  Servicing
Agreement") among Norwest Asset Securities  Corporation,  as seller  ("NASCOR"),
Norwest Bank Minnesota,  National  Association,  as master servicer (the "Master
Servicer"),  First Union National Bank of North Carolina, as trust administrator
(the  "Trust  Administrator"),  and  Firstar  Trust  Company,  as  trustee  (the
"Trustee")  of  Norwest  Asset  Securities   Corporation  Mortgage  Pass-Through
Certificates, Series 1997-5.

     Section 2.  Representations and Warranties of the Purchaser.  In connection
with the proposed transfer, the Purchaser represents and warrants to the NASCOR,
the Master Servicer and the Trust Administrator that:

          Either (i) the  Purchaser  is not an  employee  benefit  plan or other
     retirement arrangement subject to the fiduciary  responsibility  provisions
     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,  the source of funds used to  purchase  the Class [M] [B-1]  [B-2]
     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) and 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  or (iii) the Purchaser has provided
     (a) a "Benefit Plan Opinion"  satisfactory to NASCOR and the Trustee of the
     Trust Estate and (b) such other opinions of counsel, officers' certificates
     and  agreements  as NASCOR 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 Trust
     Administrator,  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




                   Norwest Mortgage, Inc. Servicing Agreement

              First Union Mortgage Corporation Servicing Agreement

               National City Mortgage Company Servicing Agreement

                   Citicorp Mortgage, Inc. Servicing Agreement

               First Bank National Association Servicing Agreement

                   Suntrust Mortgage, Inc. Servicing Agreement

                Countrywide Home Loans, Inc. Servicing Agreement

               The Huntington Mortgage Company Servicing Agreement

                   Cimarron Mortgage Corp. 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  into  as  of ,  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 1997-5, Class
- ---- (the "Class B Certificates"). The Class B Certificates were issued pursuant
to a Pooling and  Servicing  Agreement  dated as of March 27, 1997 among Norwest
Asset  Securities  Corporation,  as Seller  ("NASCOR"),  Norwest Bank Minnesota,
National  Association,  as Master  Servicer,  First Union National Bank of North
Carolina, as Trust Administrator and Firstar Trust Company, 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 A-1 by Standard  and Poor's  ("S&P") or at least
P-1 by Moody's  Investors  Service,  Inc.  ("Moody's")  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 Aa2 by Moody's
or AA by S&P, (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 A-1 by S&P or (z) the  depository  institution  or trust
company is one that is acceptable to either  Moody's or S&P 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  2.02(e)) 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 related  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,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer  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,  to the extent
that the Company as Master  Servicer is granted  such  authority  in the related
Servicing  Agreement,  the  related  Servicer 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 cause (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 such 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 (i) be provided only to the
extent it is not  confidential  in nature and (ii) be  obtainable by the related
Servicer  from  existing  reports,  certificates  or  statements or otherwise be
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  therein
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  as of the  date  hereof,  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 if immediately
available  funds from the  Purchaser  to the  Company for deposit in the related
Certificate  Account;  or  (ii)  the  related  Servicer  may  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 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  as of the  date  hereof,  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) 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 1997-5. 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 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 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,  NASCOR,
and each  Servicer  and each  person who  controls  the  Company,  NASCOR,  or a
Servicer and each of their respective officers, directors, affiliates and agents
acting at the Company's,  NASCOR'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, NASCOR, or a Servicer, or on their behalf,
in  accordance  with the  provisions  of this  Agreement  and (i) which  actions
conflict with the Company's,  NASCOR'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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