CWMBS INC
424B5, 1997-04-28
ASSET-BACKED SECURITIES
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<PAGE>

<PAGE>
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED SEPTEMBER 9, 1996)
 
                                  $249,401,380
                                 (APPROXIMATE)
 
                                  CWMBS, INC.
                                   DEPOSITOR
 
                                     [LOGO]
 
                           SELLER AND MASTER SERVICER
 
               MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 1997-3
  DISTRIBUTIONS PAYABLE ON THE 25TH DAY OF EACH MONTH, COMMENCING IN MAY 1997
 
                            ------------------------
  
     The  Mortgage Pass-Through  Certificates, Series  1997-3 (collectively, the
'Certificates') will represent the  entire beneficial interest  in a Trust  Fund
consisting  primarily of  a pool  (the 'Mortgage  Pool') of  fixed-rate Mortgage
Loans secured by first liens on one- to four-family residential properties. Only
the  Classes  identified  in  the   table  below  (collectively,  the   'Offered
Certificates') are offered hereby.
                            ------------------------
 
     THE  CERTIFICATES  DO NOT  REPRESENT AN  INTEREST IN  OR OBLIGATION  OF THE
DEPOSITOR, THE  SELLER,  THE  MASTER  SERVICER, THE  TRUSTEE  OR  ANY  OF  THEIR
RESPECTIVE  AFFILIATES.  NEITHER THE  CERTIFICATES  NOR THE  MORTGAGE  LOANS ARE
INSURED OR GUARANTEED BY ANY GOVERNMENTAL ENTITY, THE DEPOSITOR, THE SELLER, THE
MASTER SERVICER, THE  TRUSTEE OR  ANY OF THEIR  AFFILIATES OR  ANY OTHER  PERSON
EXCEPT  AS DESCRIBED HEREIN.  DISTRIBUTIONS ON THE  CERTIFICATES WILL BE PAYABLE
SOLELY FROM  THE  ASSETS  TRANSFERRED TO  THE  TRUST  FUND FOR  THE  BENEFIT  OF
CERTIFICATEHOLDERS.
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
     SECURITIES   AND  EXCHANGE  COMMISSION   OR  ANY  STATE  SECURITIES
        COMMISSION  PASSED  UPON  THE  ACCURACY  OR  ADEQUACY  OF   THIS
          PROSPECTUS   SUPPLEMENT     OR     THE   PROSPECTUS.   ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                    INITIAL CLASS CERTIFICATE
                           BALANCE (1)                PASS-THROUGH RATE
<S>                 <C>                               <C>
Class A-1                  $25,844,000                       7.50%
Class A-2                  $22,000,000                       7.50%
Class A-3                  $11,149,900                       7.50%
Class A-4                  $50,250,000                       7.50%
Class A-5                  $15,632,000                       7.50%
Class A-6                  $15,330,000                       7.50%
Class A-7                  $13,527,960                       7.50%
Class A-8                  $ 8,500,000                       7.50%
Class A-9                  $15,000,000                       7.50%
Class A-10                 $63,666,000                       7.50%
Class PO                   $   699,763                        (3)
Class X                        (2)                            (4)
Class A-R                  $       100                       7.50%
Class M                    $ 4,278,328                       7.50%
Class B-1                  $ 2,013,331                       7.50%
Class B-2                  $ 1,509,998                       7.50%
</TABLE>
 
(1) Subject to the permitted variance described herein.
(2) The Class X Certificates will be Notional Amount Certificates, will have  no
    principal balance and will bear interest on their Notional Amount (initially
    expected to be approximately $198,007,338).
(3) The  Class PO Certificates will be  Principal Only Certificates and will not
    bear interest.
(4) The Pass-Through Rate for the Class X Certificates for any Distribution Date
    will be equal to the excess of (a) the weighted average of the Net  Mortgage
    Rates  of  the Non-Discount  Mortgage Loans  over (b)  7.50% per  annum. The
    Pass-Through Rate for the  Class X Certificates  for the first  Distribution
    Date is expected to be approximately 0.3729% per annum.
     The  Senior Certificates, other than the  Class PO and Class X Certificates
(the 'Underwritten Senior  Certificates'), offered hereby  will be purchased  by
Donaldson,  Lufkin &  Jenrette Securities  Corporation (the  'Senior Certificate
Underwriter') from the Depositor and will  be offered by the Senior  Certificate
Underwriter  and  Countrywide  Securities  Corporation  from  time  to  time  in
negotiated transactions or otherwise at varying  prices to be determined at  the
time  of  sale.  The  Class  M,  Class  B-1  and  Class  B-2  Certificates  (the
'Underwritten Subordinated  Certificates,' and  together with  the  Underwritten
Senior  Certificates,  the  'Underwritten Certificates')  will  be  purchased by
Countrywide Securities Corporation  (the 'Subordinated Certificate  Underwriter'
and,  together with the Senior Certificate Underwriter, the 'Underwriters') from
the Depositor and will  be offered by  the Subordinated Certificate  Underwriter
from  time to time in negotiated transactions  or otherwise at varying prices to
be determined at the time  of sale. Proceeds to the  Depositor from the sale  of
the  Underwritten Certificates  are expected  to be  approximately $246,560,970,
plus accrued  interest,  before  deducting  issuance  expenses  payable  by  the
Depositor. The Class PO and Class X Certificates will be issued to the Depositor
on or about April 29, 1997 as partial consideration for the sale of the Mortgage
Loans to the Trust Fund. See 'Method of Distribution' herein.
     The  Underwritten Certificates are offered  by the Underwriters, subject to
prior sale, when, as and  if delivered to and  accepted by the Underwriters  and
subject to their right to reject orders in whole or in part. It is expected that
delivery   of  the   Underwritten  Certificates,   other  than   the  Class  A-R
Certificates, will be made in book-entry form only through the facilities of The
Depository Trust Company, and that the Class A-R Certificates will be  delivered
at  the offices  of Donaldson, Lufkin  & Jenrette Securities  Corporation in New
York, New York, on or about April 29, 1997.
DONALDSON, LUFKIN & JENRETTE                  COUNTRYWIDE SECURITIES CORPORATION
   SECURITIES CORPORATION
April 25, 1997
 
<PAGE>

<PAGE>
     The Mortgage Loans will be sold to the Depositor by Countrywide Home Loans,
Inc. ('Countrywide').
 
     An election will be made to treat the Trust Fund as a 'real estate mortgage
investment conduit' ('REMIC') for federal income tax purposes. As described more
fully herein and in the Prospectus,  the Certificates, other than the Class  A-R
Certificates,  will be designated  as the 'regular interests'  in the REMIC. The
Class A-R Certificates will constitute the beneficial ownership of the 'residual
interests' in the REMIC.  Prospective investors are cautioned  that a Class  A-R
Certificateholder's  REMIC  taxable income  and the  tax liability  thereon will
exceed cash distributions in  certain periods, in which  event such holder  must
have  sufficient alternative  sources of  funds to  pay such  tax liability. See
'Certain Federal Income Tax Consequences' herein and in the Prospectus.
 
     The  Class  A-R   Certificates  will   be  subject   to  certain   transfer
restrictions.  See 'Description of the  Certificates -- Restrictions on Transfer
of the Class A-R Certificates.'
 
     THE YIELD  TO INVESTORS  ON  EACH CLASS  OF  OFFERED CERTIFICATES  WILL  BE
SENSITIVE  IN VARYING  DEGREES TO,  AMONG OTHER THINGS,  THE RATE  AND TIMING OF
PRINCIPAL PAYMENTS (INCLUDING PREPAYMENTS) OF THE MORTGAGE LOANS, WHICH MAY VARY
SIGNIFICANTLY  OVER  TIME.  THE  YIELD  TO  MATURITY  OF  A  CLASS  OF   OFFERED
CERTIFICATES  PURCHASED AT A DISCOUNT  OR PREMIUM WILL BE  MORE SENSITIVE TO THE
RATE AND TIMING OF PAYMENTS THEREON. HOLDERS OF THE OFFERED CERTIFICATES  SHOULD
CONSIDER,  IN THE  CASE OF  ANY SUCH CERTIFICATES  PURCHASED AT  A DISCOUNT, AND
PARTICULARLY THE  PRINCIPAL  ONLY CERTIFICATES,  THE  RISK THAT  A  SLOWER  THAN
ANTICIPATED  RATE OF PRINCIPAL PAYMENTS ON THE MORTGAGE LOANS COULD RESULT IN AN
ACTUAL YIELD THAT IS LOWER  THAN THE ANTICIPATED YIELD AND,  IN THE CASE OF  ANY
OFFERED  CERTIFICATES PURCHASED AT A PREMIUM  AND PARTICULARLY THE INTEREST ONLY
CERTIFICATES, THE RISK THAT A FASTER THAN ANTICIPATED RATE OF PRINCIPAL PAYMENTS
ON THE MORTGAGE LOANS  COULD RESULT IN  AN ACTUAL YIELD THAT  IS LOWER THAN  THE
ANTICIPATED  YIELD. HOLDERS OF  THE INTEREST ONLY  CERTIFICATES SHOULD CAREFULLY
CONSIDER THE RISK THAT A RAPID RATE OF PRINCIPAL PAYMENTS ON THE MORTGAGE  LOANS
COULD   RESULT  IN  THE  FAILURE  OF  SUCH  HOLDERS  TO  RECOVER  THEIR  INITIAL
INVESTMENTS.  THE  YIELD   TO  INVESTORS  IN   THE  OFFERED  CERTIFICATES,   AND
PARTICULARLY  THE CLASS M,  CLASS B-1 AND  CLASS B-2 CERTIFICATES,  ALSO WILL BE
ADVERSELY AFFECTED  BY  NET  INTEREST  SHORTFALLS AND  BY  REALIZED  LOSSES.  NO
REPRESENTATION IS MADE AS TO THE ANTICIPATED RATE OF PREPAYMENTS ON THE MORTGAGE
LOANS,  THE AMOUNT AND TIMING OF NET  INTEREST SHORTFALLS OR REALIZED LOSSES, OR
AS TO THE RESULTING YIELD TO MATURITY OF ANY CLASS OF CERTIFICATES.
 
     The  Class  A-3  Certificates  will  be  entitled  to  the  benefit  of  an
irrevocable  financial guaranty insurance policy (the  'Policy') to be issued by
Financial Security  Assurance  Inc.  (the  'Insurer'  or  'Financial  Security')
pursuant  to  which  Financial  Security  will  unconditionally  and irrevocably
guarantee  the  payment  of  the  Guaranteed  Distributions  on  the  Class  A-3
Certificates on each Distribution Date. See 'Credit Enhancement -- The Financial
Guaranty Insurance Policy.'
 
     Each  Underwriter  intends to  make a  secondary market  in the  Classes of
Underwritten Certificates  purchased  by it,  but  neither Underwriter  has  any
obligation  to do  so. There  is currently no  secondary market  for the Offered
Certificates and there can be no assurance  that such a market will develop  or,
if   it  does  develop,  that   it  will  continue  or   that  it  will  provide
Certificateholders with a sufficient level of liquidity of investment.
 
                            ------------------------
     This Prospectus Supplement does not contain complete information about  the
offering of the Offered Certificates. Additional information is contained in the
Prospectus  of  the Depositor  dated September  9,  1996 (the  'Prospectus') and
purchasers are urged to read both this Prospectus Supplement and the  Prospectus
in  full. Sales of  the Offered Certificates  may not be  consummated unless the
purchaser has received both this Prospectus Supplement and the Prospectus.
 
     UNTIL NINETY DAYS AFTER THE DATE OF THIS PROSPECTUS SUPPLEMENT, ALL DEALERS
EFFECTING TRANSACTIONS IN THE OFFERED CERTIFICATES, WHETHER OR NOT PARTICIPATING
IN THIS DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS SUPPLEMENT AND THE
PROSPECTUS. THIS  IS IN  ADDITION TO  THE  OBLIGATION OF  DEALERS TO  DELIVER  A
PROSPECTUS  SUPPLEMENT AND THE  PROSPECTUS WHEN ACTING  AS UNDERWRITERS AND WITH
RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.

     's' Registered service mark of Countrywide Credit Industries,  Inc. and its
affiliates.
 
                                      S-2



<PAGE>

<PAGE>
                                SUMMARY OF TERMS
 
     This  Summary of  Terms is  qualified in its  entirety by  reference to the
detailed information appearing  elsewhere in this  Prospectus Supplement and  in
the  accompanying Prospectus. Certain capitalized terms  used in this Summary of
Terms are defined elsewhere in this Prospectus Supplement or in the Prospectus.
 
<TABLE>
<S>                                      <C>
Title of Certificates..................  Mortgage Pass-Through Certificates, Series 1997-3 (the 'Certificates').
 
Offered Certificates...................  Class A-1, Class A-2,  Class A-3, Class A-4,  Class A-5, Class A-6,  Class
                                         A-7, Class A-8, Class A-9, Class A-10, Class PO, Class X, Class A-R, Class
                                         M, Class B-1 and Class B-2 Certificates. Only the Offered Certificates are
                                         offered  hereby. The aggregate  initial Class Certificate  Balances of the
                                         Certificates will be subject to a  permitted variance in the aggregate  of
                                         plus  or minus 5%. Variances in  the Class Certificate Balances may result
                                         in variances in the Notional Amount of the Notional Amount Certificates.
 
                                         The Notional Amount of the Class X Certificates for any Distribution  Date
                                         will  be equal to  the aggregate of  the Stated Principal  Balances of the
                                         Non-Discount Mortgage Loans  with respect to  such Distribution Date.  The
                                         initial  Notional Amount of the Class X  Certificates will be equal to the
                                         aggregate of the  Stated Principal Balances  of the Non-Discount  Mortgage
                                         Loans as of the Cut-off Date.
 
Certificates other than the Offered
  Certificates.........................  In  addition  to  the  Offered  Certificates,  the  following  Classes  of
                                         Certificates will be  issued in  the indicated  approximate initial  Class
                                         Certificate  Balances and will bear interest at the indicated Pass-Through
                                         Rates, but are not offered hereby:
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                         INITIAL CLASS
                                                                                          CERTIFICATE     PASS-THROUGH
                                                                                            BALANCE           RATE
                                                                                         -------------    ------------
 
                                         <S>                                             <C>              <C>
                                         Class B-3(1).................................     $ 754,999          7.50%
 
                                         Class B-4(1).................................     $ 754,999          7.50%
 
                                         Class B-5(1).................................     $ 755,000          7.50%
</TABLE>
 
<TABLE>
<S>                                      <C>
                                         ------------------------
                                         (1) The  Class B-3,  Class B-4  and Class  B-5 Certificates  will  provide
                                         limited   credit  support  to  the   Senior  Certificates  and  the  other
                                         Subordinated Certificates, as described herein.
                                         Any information contained herein with respect to the Class B-3, Class  B-4
                                         and   Class  B-5  Certificates  is  provided   only  to  permit  a  better
                                         understanding of the Offered Certificates.
 
Designations
 
  Regular Certificates.................  All Classes of Certificates other than the Class A-R Certificates.
 
  Residual Certificates................  Class A-R Certificates.
 
  Senior Certificates..................  Class A-1, Class A-2,  Class A-3, Class A-4,  Class A-5, Class A-6,  Class
                                         A-7,  Class A-8, Class  A-9, Class A-10,  Class PO, Class  X and Class A-R
                                         Certificates.
 
  Subordinated Certificates............  Class M,  Class  B-1,  Class B-2,  Class  B-3,  Class B-4  and  Class  B-5
                                         Certificates.
 
  Principal Only Certificates..........  Class PO Certificates.
 
  Component Certificates...............  Class A-7 Certificates.
 
  Accrual Components...................  Class A-7-1 and Class A-7-2 Components.
 
  Accretion Directed Certificates......  Class A-6 and Class A-10 Certificates.
 
  Interest Only Certificates...........  Class X Certificates.
</TABLE>
 
                                      S-3
 
<PAGE>

<PAGE>
 
<TABLE>
<S>                                      <C>
  Notional Amount Certificates.........  Class X Certificates.
 
  Planned Principal Classes............  Class A-1, Class A-2, Class A-5, Class A-8 and Class A-9 Certificates.
 
  Targeted Principal Classes...........  Class A-6 and Class A-10 Certificates.
 
  Support Class........................  Class A-7 Certificates.
 
  Fixed Rate Certificates..............  All  Classes  of  Certificates  other  than  the  Class  PO  and  Class  X
                                         Certificates.
 
  Variable Rate Certificates...........  Class X Certificates.
 
  Physical Certificates................  Class PO,  Class  X,  Class  A-R,  Class B-3,  Class  B-4  and  Class  B-5
                                         Certificates.
 
  Book-Entry Certificates..............  All Classes of Certificates other than the Physical Certificates.
 
Trust Fund.............................  The  Certificates will represent the  entire beneficial ownership interest
                                         in the Trust Fund, which will consist primarily of the Mortgage Pool.
 
Pooling and Servicing
  Agreement............................  The Certificates  will  be issued  pursuant  to a  Pooling  and  Servicing
                                         Agreement  dated  as  of  April  1,  1997  (the  'Agreement'),  among  the
                                         Depositor, the Seller, the Master Servicer and the Trustee.
 
Depositor..............................  CWMBS, Inc.  (the  'Depositor'),  a Delaware  corporation  and  a  limited
                                         purpose finance subsidiary of Countrywide Credit Industries, Inc. See 'The
                                         Depositor' in the Prospectus.
 
Seller and Master Servicer.............  Countrywide  Home Loans, Inc.  ('Countrywide' or the  'Seller' and, in its
                                         capacity as master servicer of the Mortgage Loans, the 'Master Servicer').
                                         See 'Servicing  of Mortgage  Loans  -- The  Master Servicer'  herein.  The
                                         Mortgage  Loans were  originated or acquired  in the normal  course of its
                                         business by  the  Seller  and will  be  acquired  by the  Depositor  in  a
                                         privately  negotiated transaction. The Master Servicer will be responsible
                                         for the  servicing of  the  Mortgage Loans  and  will receive  the  Master
                                         Servicing   Fee  from  interest  collected  on  the  Mortgage  Loans.  See
                                         'Servicing of  Mortgage Loans  -- Servicing  Compensation and  Payment  of
                                         Expenses' herein.
 
Trustee................................  The  Bank of New York,  a banking corporation organized  under the laws of
                                         the State of New York (the 'Trustee').
 
Cut-off Date...........................  April 1, 1997.
 
Closing Date...........................  On or about April 29, 1997.
 
Determination Date.....................  The 22nd day  of each month  or, if such  day is not  a business day,  the
                                         preceding business day; provided that the Determination Date in each month
                                         will be at least two business days prior to the related Distribution Date.
 
Mortgage Loans.........................  The  Mortgage Pool will  consist primarily of  30-year conventional fixed-
                                         rate mortgage  loans  secured  by  first  liens  on  one-  to  four-family
                                         residential  properties. Distributions  of principal  and interest  on the
                                         Certificates will be  based solely  on payments received  on the  Mortgage
                                         Loans, as described herein. See 'The Mortgage Pool' herein.
 
Distribution Date......................  The  25th day of each month or, if such  day is not a business day, on the
                                         first  business  day   thereafter,  commencing  in   May  1997  (each,   a
                                         'Distribution Date'). Distributions on each Distribution Date will be made
                                         to Certificateholders of record as of the related Record Date, except that
                                         the  final  distribution  on  the  Certificates  will  be  made  only upon
                                         presentment and  surrender  of the  Certificates  at the  Corporate  Trust
                                         Office of the Trustee.
 
Record Date............................  The  Record Date for each Distribution Date  will be the last business day
                                         of the month preceding the month of such Distribution Date.
</TABLE>
 
                                      S-4
 
<PAGE>

<PAGE>
 
<TABLE>
<S>                                      <C>
Priority of Distributions..............  Distributions will be made on each Distribution Date from Available  Funds
                                         in  the  following order  of priority:  (i) to  interest on  each interest
                                         bearing Class of  Senior Certificates  (except that with  respect to  each
                                         Accrual  Component  prior  to  the  applicable  Accrual  Termination Date,
                                         interest will be added to the respective Component Balance thereof);  (ii)
                                         to  principal  on  the Classes  of  Senior Certificates  then  entitled to
                                         receive distributions  of  principal, in  the  order and  subject  to  the
                                         priorities  set  forth herein  under 'Description  of the  Certificates --
                                         Principal,' in each case in an  aggregate amount up to the maximum  amount
                                         of  principal to be distributed on such Classes on such Distribution Date;
                                         (iii) to  any Class  PO Deferred  Amounts  with respect  to the  Class  PO
                                         Certificates,  but only from amounts that would otherwise be distributable
                                         on such Distribution Date as  principal of the Subordinated  Certificates;
                                         and  (iv) to interest on and then  principal of each Class of Subordinated
                                         Certificates,  in  the  order  of  their  numerical  Class   designations,
                                         beginning  with  the Class  M Certificates,  in each  case subject  to the
                                         limitations   set    forth    herein    under    'Description    of    the
                                         Certificates -- Principal.'
 
                                         Under certain circumstances described herein, distributions from Available
                                         Funds  for  a  Distribution  Date  that would  otherwise  be  made  on the
                                         Subordinated  Certificates  may  be  distributed  instead  on  the  Senior
                                         Certificates.  See  'Description  of  the  Certificates  --  Allocation of
                                         Losses' herein.
 
Distributions of Interest..............  To the extent funds are available therefor, each interest bearing Class of
                                         Certificates will be  entitled to receive  interest in the  amount of  the
                                         Interest  Distribution Amount for such Class.  Each of the Class A-7-1 and
                                         Class A-7-2 Components  are Accrual  Components. Interest  will accrue  on
                                         each  of the Class  A-7-1 and Class A-7-2  Components during each Interest
                                         Accrual Period at a per annum  rate of 7.50%. However, such interest  will
                                         not be distributed as interest on either of the Class A-7-1 or Class A-7-2
                                         Components until (i) in the case of the Class A-7-1 Component, the earlier
                                         of  (a) the Senior Credit Support  Depletion Date and (b) the Distribution
                                         Date on which the  Class Certificate Balance of  the A-6 Certificates  has
                                         been  reduced  to zero  (the  'Class A-7-1  Component  Accrual Termination
                                         Date') and (ii) in the case of  the Class A-7-2 Component, the earlier  of
                                         (a) the Senior Credit Support Depletion Date and (b) the Distribution Date
                                         on  which the Class Certificate Balance of the Class A-10 Certificates has
                                         been reduced  to  zero (the  'Class  A-7-2 Component  Accrual  Termination
                                         Date').  Interest so  accrued and  unpaid will  be added  to the Component
                                         Balances of the Class  A-7-1 and Class  A-7-2 Component, respectively,  on
                                         the  related Distribution Date. On and  prior to the Class A-7-1 Component
                                         Accrual Termination  Date, the  amount of  interest accrued  on the  Class
                                         A-7-1  Component shall be paid as principal on the Class A-6 Certificates,
                                         up to  its  Targeted Balance  for  such  Distribution Date,  and  then  as
                                         principal  on the Class A-7-1  Component. On and prior  to the Class A-7-2
                                         Component Accrual Termination Date, the amount of interest accrued on  the
                                         Class  A-7-2  Component  shall be  paid  as  principal on  the  Class A-10
                                         Certificates, up to its Targeted  Balance for such Distribution Date,  and
                                         then  as principal on the Class A-7-2 Component. The Class PO Certificates
                                         are  Principal  Only  Certificates  and   will  not  bear  interest.   See
                                         'Description of the Certificates -- Interest' herein.
 
  A. Interest Distribution Amount......  For  each interest bearing  Class of Certificates,  the amount of interest
                                         accrued during the related Interest Accrual Period at the applicable Pass-
                                         Through Rate on the related Class Certificate Balance or Notional  Amount,
                                         as the case may be.
 
  B. Pass-Through Rate.................  The   Pass-Through  Rate  for  each  interest  bearing  Class  of  Offered
                                         Certificates for each Distribution Date will be as set forth or  described
                                         on the cover page hereof.
</TABLE>
 
                                      S-5
 
<PAGE>

<PAGE>
<TABLE>
<S>                                      <C>
                                         The  Pass-Through Rate for  the Class X  Certificates for any Distribution
                                         Date will be equal to  the excess of (a) the  weighted average of the  Net
                                         Mortgage  Rates  of the  Non-Discount Mortgage  Loans  over (b)  7.50% per
                                         annum. The Pass-Through Rate  for the Class X  Certificates for the  first
                                         Distribution Date is expected to be approximately 0.3729% per annum.
 
                                         With  respect to each Distribution Date, the 'Interest Accrual Period' for
                                         each interest bearing  Class of  Certificates will be  the calendar  month
                                         preceding the month of such Distribution Date.
 
Distributions of Principal.............  On  each Distribution  Date, to the  extent funds  are available therefor,
                                         principal distributions in reduction of the Class Certificate Balances  of
                                         each  Class of Certificates (other  than the Notional Amount Certificates)
                                         will be made in the order and  subject to the priorities set forth  herein
                                         under  'Description  of the  Certificates  -- Principal'  in  an aggregate
                                         amount equal  to such  Class' allocable  portion of  the Senior  Principal
                                         Distribution  Amount,  the Class  A-4  Principal Distribution  Amount, the
                                         Class PO Principal Distribution Amount, the Class A-7-1 Component  Accrual
                                         Amount,  the  Class A-7-2  Component  Accrual Amount  or  the Subordinated
                                         Principal  Distribution  Amount,  as   applicable.  The  Notional   Amount
                                         Certificates  do not have  principal balances and are  not entitled to any
                                         distributions  in  respect  of  principal  of  the  Mortgage  Loans.   See
                                         'Description of the Certificates -- Principal' herein.
 
Credit Enhancement -- General..........  Credit  enhancement for  the Senior Certificates  will be  provided by the
                                         Subordinated  Certificates  and  credit  enhancement  for  each  Class  of
                                         Subordinated  Certificates will  be provided  by the  Class or  Classes of
                                         Subordinated Certificates  with higher  numerical Class  designations,  as
                                         described  below. The aggregate of  the initial Class Certificate Balances
                                         of the Class B-3, Class B-4 and Class B-5 Certificates, which are the only
                                         Certificates supporting  the Class  B-2 Certificates,  is expected  to  be
                                         approximately $2,264,998.
 
Subordination..........................  The  rights  of  holders  of  the  Subordinated  Certificates  to  receive
                                         distributions with respect to the Mortgage Loans in the Trust Fund will be
                                         subordinated to such rights of holders of the Senior Certificates, and the
                                         rights of the holders  of each Class  of Subordinated Certificates  (other
                                         than  the  Class M  Certificates) to  receive  such distributions  will be
                                         further  subordinated  to  such  rights   of  the  Class  or  Classes   of
                                         Subordinated Certificates with lower numerical Class designations, in each
                                         case only to the extent described herein.
 
                                         For  purposes of allocating  losses to the  Subordinated Certificates, the
                                         Class M  Certificates will  be  deemed to  have  a lower  numerical  Class
                                         designation, and to be of a higher payment priority, than each other Class
                                         of Subordinated Certificates.
 
                                         The   subordination  of  the  Subordinated   Certificates  to  the  Senior
                                         Certificates,  and  the  further  subordination  within  the  Subordinated
                                         Certificates,  is intended to increase the likelihood of timely receipt by
                                         the holders of Certificates with  higher relative payment priority of  the
                                         maximum  amount to which they are entitled on any Distribution Date and to
                                         provide such holders protection  against losses on  the Mortgage Loans  to
                                         the  extent described  herein. The Subordinated  Certificates also provide
                                         protection, to a lesser extent, against Special Hazard Losses,  Bankruptcy
                                         Losses  and Fraud Losses. However, in  certain circumstances the amount of
                                         available subordination (including the limited subordination provided  for
                                         certain  types of losses) may be exhausted and shortfalls in distributions
                                         on the Certificates could result. Holders of the Senior Certificates  will
                                         bear  their proportionate  share of  any losses  realized on  the Mortgage
                                         Loans in excess of the available subordination amount, provided, that with
                                         respect to the  Class A-3  Certificates, losses realized  on the  Mortgage
                                         Loans  in excess of the available  subordination amount will be covered by
                                         the  Policy.  See  'Description  of   the  Certificates  --  Priority   of
                                         Distributions Among Certificates,'
</TABLE>
 
                                      S-6
 
<PAGE>

<PAGE>
 
<TABLE>
<S>                                      <C>
                                         '  --  Allocation  of  Losses,' 'Credit  Enhancement  --  Subordination of
                                         Certain Classes' and ' -- The Financial Guaranty Insurance Policy' herein.
 
Financial Guaranty Insurance Policy....  In addition to the credit enhancement provided by the subordination of the
                                         Subordinated Certificates,  the  Class  A-3  Certificates  will  have  the
                                         benefit  of the Policy pursuant to which Financial Security will guarantee
                                         the payment of the Guaranteed Distributions on the Class A-3 Certificates.
                                         See 'Credit Enhancement  -- The Financial  Guaranty Insurance Policy'  and
                                         ' -- Financial Security Assurance Inc.' herein.
 
Advances...............................  The  Master Servicer is obligated to  make cash advances ('Advances') with
                                         respect to  delinquent  payments  of  principal of  and  interest  on  any
                                         Mortgage  Loan  to  the  extent  described  herein.  The  Trustee  will be
                                         obligated to make  any such Advance  if the Master  Servicer fails in  its
                                         obligation  to  do  so,  to  the extent  provided  in  the  Agreement. See
                                         'Servicing of Mortgage Loans -- Advances' herein.
 
Prepayment Considerations and Risks;
  Reinvestment Risk....................  The rate of principal payments on the Offered Certificates, the  aggregate
                                         amount  of  distributions on  the Offered  Certificates  and the  yield to
                                         maturity of  the Offered  Certificates will  be related  to the  rate  and
                                         timing of payments of principal on the Mortgage Loans.
 
                                         Since  the rate of payment of principal  on the Mortgage Loans will depend
                                         on future events and a variety of factors, no assurance can be given as to
                                         such rate or the  rate of principal prepayments.  The extent to which  the
                                         yield  to maturity of  a Class of  Offered Certificates may  vary from the
                                         anticipated yield may depend upon the degree to which it is purchased at a
                                         discount or  premium, and  the  degree to  which  the timing  of  payments
                                         thereon  is sensitive  to prepayments,  liquidations and  purchases of the
                                         Mortgage Loans. Further, an investor should consider the risk that, in the
                                         case of the Principal Only Certificates and any other Offered  Certificate
                                         purchased  at  a discount,  a slower  than  anticipated rate  of principal
                                         payments (including prepayments) on the Mortgage Loans could result in  an
                                         actual  yield to  such investor that  is lower than  the anticipated yield
                                         and, in the case of the  Interest Only Certificates and any other  Offered
                                         Certificate  purchased at  a premium,  a faster  than anticipated  rate of
                                         principal payments could result in an  actual yield to such investor  that
                                         is  lower  than  the anticipated  yield.  Investors in  the  Interest Only
                                         Certificates should  carefully consider  the  risk that  a rapid  rate  of
                                         principal  payments on the  Mortgage Loans could result  in the failure of
                                         such investors to recover their initial investments.
 
                                         Because the Mortgage Loans may be prepaid at any time, it is not  possible
                                         to  predict the  rate at which  distributions of principal  of the Offered
                                         Certificates will be received. Since prevailing interest rates are subject
                                         to fluctuation, there can  be no assurance that  investors in the  Offered
                                         Certificates  will be able to reinvest the distributions thereon at yields
                                         equaling or  exceeding the  yields  on such  Offered Certificates.  It  is
                                         possible  that yields on any such reinvestments  will be lower, and may be
                                         significantly lower,  than the  yields on  the Offered  Certificates.  See
                                         'Yield, Prepayment and Maturity Considerations' herein.
 
Optional Termination...................  On  any Distribution Date on which the Pool Principal Balance is less than
                                         10% of the Cut-off Date Pool  Principal Balance, the Master Servicer  will
                                         have  the option  to purchase,  in whole, the  Mortgage Loans  and the REO
                                         Property, if any,  remaining in the  Trust Fund. See  'Description of  the
                                         Certificates -- Optional Termination' herein.
 
Federal Income Tax Considerations......  An  election  will be  made  to treat  the Trust  Fund  as a  'real estate
                                         mortgage investment conduit'  ('REMIC') for federal  income tax  purposes.
                                         The Regular Certificates will constitute 'regular interests' in the REMIC.
                                         The  Class  A-R Certificates  will represent  the  sole class  of residual
                                         interest in the REMIC.
</TABLE>
 
                                      S-7
 
<PAGE>

<PAGE>
 
<TABLE>
<S>                                      <C>
                                         The Accrual Certificates, the Interest Only Certificates and the Principal
                                         Only Certificates will, and certain other Classes of Offered  Certificates
                                         may,  be  issued  with  original issue  discount  for  federal  income tax
                                         purposes. See 'Certain Federal Income Tax Consequences' herein and in  the
                                         Prospectus.
 
ERISA Considerations...................  The  acquisition of an Offered Certificate  by a pension or other employee
                                         benefit plan (a 'Plan') subject to the Employee Retirement Income Security
                                         Act of 1974, as amended ('ERISA'),  could, in some instances, result in  a
                                         prohibited  transaction or other violation of the fiduciary responsibility
                                         provisions of ERISA and Section 4975 of the Internal Revenue Code of 1986,
                                         as amended (the 'Code').
 
                                         Subject to  the  considerations  and  conditions  described  under  'ERISA
                                         Considerations' herein, it is expected that the Senior Certificates (other
                                         than the Class PO, Class X and Class A-R Certificates) may be purchased by
                                         a Plan.
 
                                         Any   Plan  fiduciary   considering  whether   to  purchase   any  Offered
                                         Certificates on behalf of a Plan should consult with its counsel regarding
                                         the applicability of  the provisions  of ERISA  and the  Code. See  'ERISA
                                         Considerations' herein.
 
Legal Investment.......................  The  Senior  Certificates and  the  Class M  Certificates  will constitute
                                         'mortgage related  securities'  for  purposes of  the  Secondary  Mortgage
                                         Market  Enhancement Act of 1984 ('SMMEA') so long as they are rated in one
                                         of the two highest rating categories by at least one nationally recognized
                                         statistical rating organization  and, as such,  are legal investments  for
                                         certain entities to the extent provided for in SMMEA.
 
                                         It  is anticipated that the Class B-1  and Class B-2 Certificates will not
                                         be rated  in one  of the  two highest  rating categories  by a  nationally
                                         recognized  statistical  rating  organization  and,  therefore,  will  not
                                         constitute 'mortgage related securities' for purposes of SMMEA.
 
                                         Institutions whose investment activities are subject to review by  federal
                                         or  state regulatory authorities should consult  with their counsel or the
                                         applicable authorities to determine whether  an investment in the  Offered
                                         Certificates  complies  with applicable  guidelines, policy  statements or
                                         restrictions. See 'Legal Investment' in the Prospectus.
 
Ratings................................  It is a condition to the issuance of the Senior Certificates that they  be
                                         rated Aaa by Moody's Investors Service, Inc. ('Moody's') and AAA by Duff &
                                         Phelps  Credit  Rating  Company  ('DCR' and,  together  with  Moody's, the
                                         'Rating Agencies').  See  'Ratings'  herein.  It is  a  condition  to  the
                                         issuance of the Class M, Class B-1 and Class B-2 Certificates that they be
                                         rated  at least AA,  A and BBB,  respectively, by DCR.  The ratings of the
                                         Offered Certificates of any Class  should be evaluated independently  from
                                         similar  ratings  on  other  types  of  securities.  A  rating  is  not  a
                                         recommendation to  buy, sell  or hold  securities and  may be  subject  to
                                         revision  or withdrawal at any time by  either of the Rating Agencies. See
                                         'Ratings' herein.
 
                                         The Depositor has not  requested a rating of  the Offered Certificates  by
                                         any  rating  agency  other  than  the Rating  Agencies;  there  can  be no
                                         assurance, however, as to  whether any other rating  agency will rate  the
                                         Offered Certificates or, if it does, what rating would be assigned by such
                                         other  rating agency. The  rating assigned by such  other rating agency to
                                         the Offered  Certificates  could  be lower  than  the  respective  ratings
                                         assigned by the Rating Agencies. See 'Ratings' herein.
</TABLE>
 
                                      S-8


<PAGE>

<PAGE>
                               THE MORTGAGE POOL
 
GENERAL
 
     The Depositor will purchase the Mortgage Loans from Countrywide pursuant to
the  Pooling  and  Servicing  Agreement  dated  as  of  the  Cut-off  Date among
Countrywide, as Seller and Master Servicer,  the Depositor and the Trustee  (the
'Agreement') and will cause the Mortgage Loans to be assigned to the Trustee for
the benefit of the holders of the Certificates (the 'Certificateholders').
 
     Under   the  Agreement,  the  Seller  will  make  certain  representations,
warranties and covenants to the Depositor  relating to, among other things,  the
due execution and enforceability of the Agreement and certain characteristics of
the  Mortgage  Loans  and,  subject to  the  limitations  described  below under
' --  Assignment of  the Mortgage  Loans,' will  be obligated  to repurchase  or
substitute  a similar  mortgage loan  for any  Mortgage Loan  as to  which there
exists deficient  documentation  or  an  uncured material  breach  of  any  such
representation,  warranty or covenant. The Seller  will represent and warrant to
the Depositor in the Agreement that the Mortgage Loans were selected from  among
the  outstanding one- to four-family mortgage loans in the Seller's portfolio as
to which the representations  and warranties set forth  in the Agreement can  be
made  and that  such selection  was not  made in  a manner  that would adversely
affect  the   interests   of   the  Certificateholders.   See   'Mortgage   Loan
Program -- Representations by Sellers; Repurchases' in the Prospectus. Under the
Agreement, the Depositor will assign all its right, title and interest in and to
such   representations,  warranties   and  covenants   (including  the  Seller's
repurchase obligation) to the Trustee for the benefit of Certificateholders. The
Depositor will  make  no  representations  or warranties  with  respect  to  the
Mortgage  Loans and will have no obligation to repurchase or substitute Mortgage
Loans with deficient documentation or which are otherwise defective. Countrywide
is selling the Mortgage Loans without recourse and will have no obligation  with
respect  to the Certificates in its capacity as Seller other than the repurchase
obligation described above. The obligations of Countrywide, as Master  Servicer,
with   respect  to  the  Certificates  are  limited  to  the  Master  Servicer's
contractual servicing obligations under the Agreement.
 
     Certain information  with respect  to  the Mortgage  Loans expected  to  be
included  in the Mortgage  Pool is set  forth below. Prior  to the Closing Date,
Mortgage Loans may be  removed from the Mortgage  Pool and other Mortgage  Loans
may  be substituted  therefor. The Depositor  believes that  the information set
forth herein  with respect  to the  Mortgage Pool  as presently  constituted  is
representative  of  the  characteristics of  the  Mortgage  Pool as  it  will be
constituted at  the  Closing  Date,  although  certain  characteristics  of  the
Mortgage  Loans  in  the Mortgage  Pool  may vary.  Unless  otherwise indicated,
information presented  herein expressed  as a  percentage (other  than rates  of
interest)  are approximate percentages based on the Stated Principal Balances of
the Mortgage Loans as of the Cut-off Date.
 
     As of the Cut-off Date, the  aggregate of the Stated Principal Balances  of
the  Mortgage Loans is  expected to be  approximately $251,666,379 (the 'Cut-off
Date Pool Principal Balance'). The  Mortgage Loans provide for the  amortization
of  the amount financed  over a series of  substantially equal monthly payments.
All the Mortgage  Loans provide for  payments due as  of the first  day of  each
month  (the 'Due Date'). At origination, substantially all of the Mortgage Loans
had stated terms to maturity of 30 years. Scheduled monthly payments made by the
Mortgagors on the Mortgage Loans ('Scheduled Payments') either earlier or  later
than  the scheduled Due Dates thereof  will not affect the amortization schedule
or the relative  application of  such payments  to principal  and interest.  The
Mortgagors may prepay their Mortgage Loans at any time without penalty.
 
     Each Mortgage Loan was originated after September 1994.
 
     The  latest stated  maturity date  of any  Mortgage Loan  is May  2027. The
earliest stated maturity date of any Mortgage Loan is January 2017.
 
     As of the Cut-off Date, no Mortgage Loan was delinquent more than 30 days.
 
     No more than  three of  the Mortgage  Loans will  be subject  to a  buydown
agreement.   No  Mortgage  Loan  provides  for  deferred  interest  or  negative
amortization.
 
     As of the Cut-off Date, two Mortgage Loan, representing approximately 0.06%
of the Cut-off Date Pool Principal Balance, was originated as an adjustable rate
mortgage loan but converted to a fixed rate Mortgage Loan prior to its inclusion
in the Mortgage Pool.
 
     No Mortgage Loan had a Loan-to-Value Ratio at origination of more than 95%.
Each Mortgage Loan with a Loan-to-Value Ratio at origination of greater than 80%
is covered by a primary mortgage guaranty insurance
 
                                      S-9
 
<PAGE>

<PAGE>
policy issued by a mortgage insurance company acceptable to the Federal National
Mortgage Association  ('FNMA') or  the Federal  Home Loan  Mortgage  Corporation
('FHLMC'),  which policy provides coverage  in an amount equal  to the excess of
the original principal  balance of  the related Mortgage  Loan over  75% of  the
value  of  the related  Mortgaged Property,  plus  accrued interest  thereon and
related  foreclosure  expenses.   With  respect  to   49  Mortgage  Loans   with
Loan-to-Value Ratios at origination of greater than 80%, the lender (rather than
the  borrower) acquired the primary mortgage  guaranty insurance and charged the
related borrower an  interest premium equal  to the lender's  cost of  obtaining
such  insurance (such Mortgage  Loans, the 'Lender  PMI Mortgage Loans'). Except
with respect to the Lender PMI Mortgage Loans, no such primary mortgage guaranty
insurance policy will be required with  respect to any such Mortgage Loan  after
the  date on which the related Loan-to-Value Ratio is 80% or less or, based on a
new appraisal, the  principal balance of  such Mortgage Loan  represents 80%  or
less  of the new appraised value. With respect to the Lender PMI Mortgage Loans,
the primary mortgage guaranty insurance policy  will be maintained for the  life
of such Mortgage Loans.
 
     The  'Loan-to-Value  Ratio'  of a  Mortgage  Loan  at any  given  time is a
fraction,  expressed as a  percentage,  the  numerator of which is the principal
balance  of the  related  Mortgage  Loan at the  date of  determination  and the
denominator of which is (a) in the case of a purchase, the lesser of the selling
price of the Mortgaged  Property or its appraised  value at the time of sale, or
(b) in the case of a refinance, the appraised value of the Mortgaged Property at
the time of such refinance,  except in the case of a Mortgage Loan  underwritten
pursuant to  Countrywide's  Streamlined  Refinance  Documentation  Program  (the
'Streamlined Documentation Program') as described herein under ' -- Underwriting
Standards.'  With  respect  to  Mortgage  Loans   originated   pursuant  to  the
Streamlined  Documentation Program (a) if the loan-to-value ratio at the time of
the  origination  of the mortgage  loan being  refinanced  was 60% or less,  the
'Loan-to-Value  Ratio' will be the ratio of the principal amount of the Mortgage
Loan outstanding at the date of determination  divided by the appraised value of
the related  mortgaged  property at the time of the  origination of the mortgage
loan  being  refinanced  or (b) if the  loan-to-value  ratio  at the time of the
origination of the mortgage loan being refinanced was greater than 60%, then the
'Loan-to-Value  Ratio' will be the ratio of the principal amount of the Mortgage
Loan outstanding at the date of determination  divided by the appraised value as
determined by an appraisal at the time of the origination of such Mortgage Loan.
See ' --  Underwriting  Standards'  herein.  No assurance  can be given that the
value of any  Mortgaged  Property  has remained or will remain at the level that
existed on the  appraisal  or sales date.  If  residential  real  estate  values
generally or in a particular  geographic area decline,  the Loan-to-Value Ratios
might not be a reliable  indicator of the rates of  delinquencies,  foreclosures
and losses that could occur with respect to such Mortgage Loans.
 
     The following information sets forth in tabular format certain information,
as of the Cut-off  Date, as to  the Mortgage Loans. Other  than with respect  to
rates  of  interest, percentages  (approximate) are  stated by  Stated Principal
Balance of the Mortgage Loans  as of the Cut-off Date  and have been rounded  in
order to total 100%.
 
                                      S-10
 
<PAGE>

<PAGE>
<TABLE>
<CAPTION>
                       MORTGAGE RATES(1)
- ---------------------------------------------------------------
                                       AGGREGATE
                         NUMBER OF     PRINCIPAL     PERCENT OF
                         MORTGAGE       BALANCE       MORTGAGE
   MORTGAGE RATES (%)      LOANS      OUTSTANDING       POOL
- ---------------------------------------------------------------
<S>                      <C>        <C>              <C>
7.000...................      1     $    231,100.00      0.09%
7.250...................      7     $  2,444,873.29      0.97
7.375...................     10     $  2,668,771.26      1.06
7.500...................     19     $  5,227,153.25      2.08
7.625...................     31     $  8,495,660.78      3.38
7.750...................    108     $ 34,591,482.67     13.74
7.875...................    160     $ 47,130,643.83     18.73
8.000...................    192     $ 59,017,063.58     23.44
8.125...................    111     $ 31,013,236.70     12.32
8.250...................     90     $ 24,425,108.76      9.71
8.375...................     49     $ 12,574,187.32      5.00
8.500...................     48     $ 10,757,027.97      4.27
8.625...................     10     $  2,511,552.93      1.00
8.750...................     16     $  3,640,591.71      1.45
8.875...................     13     $  3,247,895.36      1.29
9.000...................      5     $    660,719.96      0.26
9.125...................      2     $    373,698.97      0.15
9.250...................      4     $    694,474.90      0.28
9.375...................      5     $    875,350.13      0.35
9.500...................      5     $  1,085,785.77      0.43
                             --
                                    ---------------  ----------
   Totals...............    886     $251,666,379.14    100.00%
                             --     ---------------  ----------
                             --     ---------------  ----------
                                    
</TABLE>
 
- ------------------------
 
(1) The    Lender   PMI   Mortgage    Loans   are   shown    at   the   Mortgage
    Rates net of the interest premium charged by the related lenders. As of  the
    Cut-off  Date, the weighted average Mortgage  Rate of the Mortgage Loans (as
    so  adjusted)  is  expected  to   be  approximately  8.032%.  Without   such
    adjustment,  the weighted  average Mortgage  Rate of  the Mortgage  Loans is
    expected to be approximately 8.067% per annum.
<TABLE>
<CAPTION>
                       ORIGINAL LOAN-TO-VALUE RATIOS(1)
- -----------------------------------------------------------------
                                        AGGREGATE
                         NUMBER OF      PRINCIPAL      PERCENT OF
ORIGINAL LOAN-TO-VALUE   MORTGAGE        BALANCE        MORTGAGE
      RATIOS (%)           LOANS       OUTSTANDING        POOL
- -----------------------------------------------------------------
<S>                      <C>         <C>               <C>
50.00 and below........      33      $  6,829,805.36       2.71%
50.01 to 55.00.........      16      $  3,450,287.71       1.37
55.01 to 60.00.........      31      $ 11,116,388.85       4.42
60.01 to 65.00.........      38      $ 10,002,276.94       3.97
65.01 to 70.00.........      76      $ 21,809,390.49       8.67
70.01 to 75.00.........     141      $ 39,397,710.92      15.65
75.01 to 80.00.........     372      $111,445,193.09      44.28
80.01 to 85.00.........      13      $  4,249,578.81       1.69
85.01 to 90.00.........     105      $ 28,453,611.86      11.31
90.01 to 95.00.........      61      $ 16,912,135.11       5.93
                             --
                                     ---------------   ----------
   Totals..............     886      $251,666,379.14     100.00%
                             --      ---------------   ----------
                             --      ---------------   ----------
                                     
</TABLE>
 
- ------------------------
 
(1) The   weighted    average    original    Loan-to-Value    Ratio    of    the
    Mortgage Loans is expected to be approximately 76.85%.
<TABLE>
<CAPTION>
         CURRENT MORTGAGE LOAN PRINCIPAL BALANCES(1)
- --------------------------------------------------------------
                                      AGGREGATE
                        NUMBER OF     PRINCIPAL     PERCENT OF
   CURRENT MORTGAGE     MORTGAGE       BALANCE       MORTGAGE
     LOAN AMOUNTS         LOANS      OUTSTANDING       POOL
- --------------------------------------------------------------
<S>                     <C>        <C>              <C>
$      0 -  $   50,000..     10    $    395,623.57      0.16%
$  50,001 - $  100,000..     41    $  3,236,647.77      1.29
$ 100,001 - $  150,000..     28    $  3,406,351.37      1.35
$ 150,001 - $  200,000..     14    $  2,386,636.79      0.95
$ 200,001 - $  250,000..    253    $ 58,681,011.60     23.32
$ 250,001 - $  300,000..    262    $ 72,029,968.21     28.60
$ 300,001 - $  350,000..    114    $ 37,220,573.28     14.79
$ 350,001 - $  400,000..     76    $ 28,538,528.21     11.34
$ 400,001 - $  450,000..     26    $ 11,047,949.83      4.39
$ 450,001 - $  500,000..     30    $ 14,569,719.87      5.79
$ 500,001 - $  550,000..      8    $  4,272,261.30      1.70
$ 550,001 - $  600,000..     10    $  5,861,203.06      2.33
$ 600,001 - $  650,000..      7    $  4,426,140.13      1.76
$ 650,001 - $  750,000..      3    $  2,102,386,48      0.84
$ 750,001 - $1,000,000..      4    $  3,491,377.67      1.39
                            --
                                   ---------------  ----------
   Totals..............    886     $251,666,379.14    100.00%
                            --     ---------------  ----------
                            --     ---------------  ----------
                                   
</TABLE>
 
- ------------------------
 
(1) As    of   the   Cut-off   Date,   the   average   current   Mortgage   Loan
    principal balance is expected to be approximately $284,048.
<TABLE>
<CAPTION>
            DOCUMENTATION PROGRAM FOR MORTGAGE LOANS
- -----------------------------------------------------------------
                                        AGGREGATE
                         NUMBER OF      PRINCIPAL      PERCENT OF
                         MORTGAGE        BALANCE        MORTGAGE
    TYPE OF PROGRAM        LOANS       OUTSTANDING        POOL
- -----------------------------------------------------------------
<S>                      <C>         <C>               <C>
Full...................     498      $152,834,534.81      60.73%
Alternative............     260      $ 74,304,207.03      29.52
Reduced................      48      $ 12,402,050.55       4.93
No Income/No Asset.....      45      $  5,777,769.54       2.30
No Ratio...............      35      $  6,347,817.21       2.52
                             --
                                     ---------------   ----------
   Totals..............     886      $251,666,379.14     100.00%
                             --      ---------------   ----------
                             --      ---------------   ----------
                                     
</TABLE>
<TABLE>
<CAPTION>
                 TYPES OF MORTGAGED PROPERTIES
- ---------------------------------------------------------------
                                      AGGREGATE
                        NUMBER OF     PRINCIPAL      PERCENT OF
                        MORTGAGE       BALANCE        MORTGAGE
     PROPERTY TYPE        LOANS      OUTSTANDING        POOL
- ---------------------------------------------------------------
<S>                     <C>        <C>               <C>
Single Family...........    622    $178,436,222.86      70.91%
Condominium.............     29    $  5,648,304.00       2.24
High Rise Condo.........      1    $    325,000.00       0.13
2-4 Family..............      5    $  1,062,021.09       0.42
Planned Unit
 Development............    229    $ 66,194,831.19      26.30
                            --
                                   ---------------   ----------
   Totals...............    886    $251,666,379.14     100.00%
                            --     ---------------   ----------
                            --     ---------------   ----------
                                   
</TABLE>
<TABLE>
<CAPTION>
                                 OCCUPANCY TYPES(1)
- -----------------------------------------------------------------
                                        AGGREGATE
                         NUMBER OF      PRINCIPAL      PERCENT OF
                         MORTGAGE        BALANCE        MORTGAGE
    OCCUPANCY TYPE         LOANS       OUTSTANDING        POOL
- -----------------------------------------------------------------
<S>                      <C>         <C>               <C>
Primary Residence......     865      $246,110,193.10      97.79%
Investor Property......       3      $    376,371.92       0.15
Second Residence.......      18      $  5,179,814.12       2.06
                             --
                                     ---------------   ----------
   Totals..............     886      $251,666,379.14     100.00%
                             --      ---------------   ----------
                             --      ---------------   ----------
                                     
</TABLE>
 
- ------------------------
 
(1) Based  upon  representations   of  the  related   mortgagors  at  the   time
    of origination.
 
                                      S-11
 
<PAGE>

<PAGE>
<TABLE>
<CAPTION>
              STATE DISTRIBUTION OF MORTGAGED PROPERTIES(1)
- -----------------------------------------------------------------
                                        AGGREGATE
                         NUMBER OF      PRINCIPAL      PERCENT OF
                         MORTGAGE        BALANCE        MORTGAGE
         STATE             LOANS       OUTSTANDING        POOL
- -----------------------------------------------------------------
<S>                      <C>         <C>               <C>
California.............      372     $112,249,682.81      44.60%
Colorado...............       35     $  9,818,252,34       3.90
Florida................       38     $  8,796,134.67       3.50
Illinois...............       30     $  9,017,219.82       3.58
Maryland...............       24     $  6,854,083,68       2.72
Massachusetts..........       27     $  6,948,796.31       2.76
New Jersey.............       33     $  8,049,486.60       3.20
Texas..................       43     $ 10,344,312.82       4.11
Utah...................       26     $  7,568,594.87       3.01
Washington.............       33     $  9,674,428.47       3.84
Other (less than 2%)...      225     $ 62,345,386.75      24.78
                         ---------   ---------------   ----------
   Totals..............      886     $251,666,379.14      100.0%
                         ---------   ---------------   ----------
                         ---------   ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) Other   includes  32  other  states  and   the  District  of  Columbia  with
    under 2% concentrations  individually. No more  than approximately 0.78%  of
    the  Mortgage Loans will  be secured by Mortgaged  Properties located in any
    one postal zip code area.
<TABLE>
<CAPTION>
                           PURPOSE OF MORTGAGE LOANS
- ----------------------------------------------------------------
                                       AGGREGATE
                        NUMBER OF      PRINCIPAL      PERCENT OF
                        MORTGAGE        BALANCE        MORTGAGE
      LOAN PURPOSE        LOANS       OUTSTANDING        POOL
- ----------------------------------------------------------------
<S>                     <C>         <C>               <C>
Purchase................     591    $162,832,597.44      64.70%
Refinance (rate/term)...     212    $ 63,997,174.70      25.43
Refinance (cash out)....      83    $ 24,836,607.00       9.87
                        ---------   ---------------   ----------
   Totals...............     886    $251,666,379.14     100.00%
                        ---------   ---------------   ----------
                        ---------   ---------------   ----------
</TABLE>
<TABLE>
<CAPTION>
                        REMAINING TERMS TO MATURITY(1)
- -----------------------------------------------------------------
                                        AGGREGATE
                         NUMBER OF      PRINCIPAL      PERCENT OF
   REMAINING TERM TO     MORTGAGE        BALANCE        MORTGAGE
   MATURITY (MONTHS)       LOANS       OUTSTANDING        POOL
- -----------------------------------------------------------------
<S>                      <C>         <C>               <C>
360....................      540     $152,819,940.00      60.74%
359....................      277     $ 80,645,015.73      32.04
358....................       21     $  6,426,668.14       2.55
357....................       16     $  4,580,460.40       1.82
356....................       11     $  2,391,599.47       0.95
355....................        1     $    134,017.64       0.05
352....................        2     $    107,527.76       0.04
351....................        2     $    353,260.20       0.14
347....................        1     $    309,905.98       0.12
346....................        1     $    296,073.54       0.12
337....................        1     $     61,400.18       0.02
330....................        1     $     85,650.13       0.03
240....................        5     $  1,434,750.00       0.57
239....................        5     $  1,586,517.01       0.63
238....................        1     $    219,215.03       0.09
237....................        1     $    214,377.93       0.09
                         ---------   ---------------   ----------
   Totals..............      886     $251,666,379.14     100.00%
                         ---------   ---------------   ----------
                         ---------   ---------------   ----------
</TABLE>
 
- ------------------------
 
(1) As  of  the   Cut-off  Date,   the  weighted  average   remaining  term   to
    maturity of the Mortgage Loans is expected to be approximately 358 months.
 
                                      S-12


<PAGE>

<PAGE>
ASSIGNMENT OF THE MORTGAGE LOANS
 
     Pursuant  to the  Agreement, the Depositor  on the Closing  Date will sell,
transfer, assign, set over and otherwise convey without recourse to the  Trustee
in trust for the benefit of the Certificateholders all right, title and interest
of  the Depositor in and to each Mortgage Loan and all right, title and interest
in and to all other assets included  in the Trust Fund, including all  principal
and  interest received on  or with respect  to the Mortgage  Loans, exclusive of
principal and interest due on or prior to the Cut-off Date.
 
     In connection with such transfer and assignment, the Depositor will deliver
or cause to be delivered to the  Trustee, or a custodian for the Trustee,  among
other  things,  the  original promissory  note  (the 'Mortgage  Note')  (and any
modification or  amendment  thereto) endorsed  in  blank without  recourse,  the
original instrument creating a first lien on the related Mortgaged Property (the
'Mortgage')  with  evidence of  recording  indicated thereon,  an  assignment in
recordable form of the  Mortgage, the title policy  with respect to the  related
Mortgaged  Property and, if applicable,  all recorded intervening assignments of
the Mortgage and any riders or modifications to such Mortgage Note and  Mortgage
(except  for any such  documents not returned from  the public recording office,
which will be delivered to the Trustee as  soon as the same is available to  the
Depositor)  (collectively,  the 'Mortgage  File').  Assignments of  the Mortgage
Loans to the Trustee (or its nominee) will be recorded in the appropriate public
office for real property records, except  in states such as California where  in
the  opinion of counsel such recording is  not required to protect the Trustee's
interests in the Mortgage Loan against the claim of any subsequent transferee or
any successor to or creditor of the Depositor or the Seller.
 
     The Trustee will review  each Mortgage File within  90 days of the  Closing
Date  (or promptly after the  Trustee's receipt of any  document permitted to be
delivered after the  Closing Date) and  if any  document in a  Mortgage File  is
found  to be missing or defective in a  material respect and the Seller does not
cure such defect within 90  days of notice thereof  from the Trustee (or  within
such  longer period not to exceed 720 days after the Closing Date as provided in
the Agreement in  the case  of missing documents  not returned  from the  public
recording  office),  the  Seller will  be  obligated to  repurchase  the related
Mortgage Loan from the Trust Fund.  Rather than repurchase the Mortgage Loan  as
provided  above, the Seller  may remove such Mortgage  Loan (a 'Deleted Mortgage
Loan') from the Trust Fund and substitute in its place another mortgage loan  (a
'Replacement  Mortgage  Loan');  however, such  substitution  is  permitted only
within two years of the  Closing Date and may not  be made unless an opinion  of
counsel is provided to the Trustee to the effect that such substitution will not
disqualify  the REMIC or result in a  prohibited transaction tax under the Code.
Any Replacement Mortgage Loan generally will, on the date of substitution, among
other characteristics set forth in the Agreement, (i) have a principal  balance,
after  deduction of all Scheduled Payments due in the month of substitution, not
in excess of, and not more than  10% less than, the Stated Principal Balance  of
the  Deleted Mortgage Loan (the  amount of any shortfall  to be deposited by the
Seller  in  the   Certificate  Account   and  held  for   distribution  to   the
Certificateholders  on the related Distribution Date (a 'Substitution Adjustment
Amount')), (ii) have a Mortgage  Rate not lower than, and  not more than 1%  per
annum higher than, that of the Deleted Mortgage Loan, (iii) have a Loan-to-Value
Ratio  not higher than that of the  Deleted Mortgage Loan, (iv) have a remaining
term to maturity not greater than (and not more than one year less than) that of
the Deleted Mortgage Loan,  and (v) comply with  all of the representations  and
warranties set forth in the Agreement as of the date of substitution. This cure,
repurchase  or substitution obligation constitutes  the sole remedy available to
Certificateholders or the Trustee  for omission of, or  a material defect in,  a
Mortgage Loan document.
 
UNDERWRITING STANDARDS
 
     All  mortgage loans must meet  credit, appraisal and underwriting standards
acceptable to Countrywide. Such underwriting  standards are applied to  evaluate
the  prospective borrower's credit standing and  repayment ability and the value
and adequacy  of  the mortgaged  property  as collateral.  These  standards  are
applied  in accordance with  applicable federal and  state laws and regulations.
Such underwriting  procedures are  generally  consistent with  those  identified
under 'Mortgage Loan Program -- Underwriting Standards' in the Prospectus except
as otherwise provided herein.
 
     Each   prospective  mortgagor  completes   an  application  which  includes
information with respect to the applicant's assets, liabilities, income,  credit
history,  employment history and  other personal information.  In addition, each
applicant is required to have sufficient  cash resources to pay the  downpayment
and closing costs.
 
                                      S-13
 
<PAGE>

<PAGE>
Countrywide  requires a credit report on  each applicant from a credit reporting
company. The report typically contains  information relating to such matters  as
credit  history with local and national  merchants and lenders, installment debt
payments and  any  record  of  defaults,  bankruptcy,  dispossession,  suits  or
judgments.  All  adverse information  in  the credit  report  is required  to be
explained by  the  prospective  borrower  to the  satisfaction  of  the  lending
officer.  Self-employed individuals are  generally required to  submit their two
most recent federal  income tax  returns. In determining  whether a  prospective
borrower  has sufficient  monthly income  available (i)  to meet  the borrower's
monthly obligations relating to the  proposed mortgage loan (including  property
taxes,  hazard  insurance  premiums,  and  where  applicable,  primary  mortgage
guaranty insurance premiums and homeowners'  association dues) and (ii) to  meet
monthly  housing  expenses described  in clause  (i)  above and  other financial
obligations  of  the  borrower   (including  consumer  and  installment   debt),
Countrywide  generally applies ratios with respect  to fixed rate mortgage loans
of up to 33% and 38%, respectively, of the proposed borrower's acceptable stable
monthly gross income. Exceptions to the underwriting standards described  herein
are made in certain circumstances where compensating factors are demonstrated by
a prospective borrower.
 
     Except  as described  below with  respect to  its Streamlined Documentation
Program, Countrywide's  underwriting  standards  generally  allow  Loan-to-Value
Ratios  at origination of up  to 95% for mortgage  loans with original principal
balances of up to $300,000, up to 90% for mortgage loans with original principal
balances of up to $400,000, up to 85% for mortgage loans with original principal
balances of up to $500,000, up to 80% for mortgage loans with original principal
balances of up to $650,000, up to 75% for mortgage loans with original principal
balances of  up to  $750,000 and  up to  70% for  mortgage loans  with  original
principal balances of up to $1,000,000. Countrywide generally does not originate
cash-out  refinance mortgage loans with original principal balances in excess of
$650,000. A  refinance  mortgage loan  is  classified as  a  cash-out  refinance
mortgage  loan by Countrywide if  the borrower retains greater  than 1.0% of the
entire amount of  the proceeds  from the  refinancing of  the existing  mortgage
loan.
 
     Except  as described  below with  respect to  its Streamlined Documentation
Program, Countrywide obtains appraisals from independent appraisers or appraisal
services for  properties that  are  to secure  mortgage loans.  Such  appraisers
inspect  and appraise the subject  property and verify that  such property is in
acceptable condition. Following each appraisal, the appraiser prepares a  report
which  includes a market data analysis based on recent sales of comparable homes
in the area and, when deemed  appropriate, a replacement cost analysis based  on
the  current cost of constructing a similar home. All appraisals are required to
conform to FNMA or FHLMC appraisal  standards then in effect. Every  independent
appraisal is reviewed by a Countrywide underwriter before the loan is funded.
 
     Countrywide  requires title insurance on all  of its mortgage loans secured
by liens on  real property.  Countrywide also  requires that  fire and  extended
coverage  casualty insurance be maintained on  the secured property in an amount
at least equal to the principal balance of the related single-family loan or the
replacement cost of the property, whichever is less.
 
     Countrywide  also  originates  or  acquires  mortgage  loans  pursuant   to
alternative  sets of  underwriting criteria under  its Alternative Documentation
Loan  Program   (the   'Alternative   Documentation   Program'),   its   Reduced
Documentation  Loan Program (the 'Reduced  Documentation Program'), its No Ratio
Documentation Loan  Program  (the  'No Ratio  Documentation  Program'),  its  No
Income/No   Asset   Documentation  Loan   Program   (the  'No   Income/No  Asset
Documentation Program'),  and its  Streamlined Documentation  Loan Program  (the
'Streamlined  Documentation  Program').  The  Alternative  Documentation Program
permits a borrower to provide W-2 forms instead of tax returns covering the most
recent two years, permits  bank statements in lieu  of verification of  deposits
and   permits  alternative  methods  of  employment  verification.  The  Reduced
Documentation, No  Ratio  Documentation  and No  Income/No  Asset  Documentation
Programs  place relatively more emphasis on property underwriting than on credit
underwriting and certain credit underwriting documentation concerning income and
employment verification therefore is waived.
 
     Under the  Reduced  Documentation  Program, Countrywide  obtains  from  the
prospective  borrowers either a  verification of deposit  or bank statements for
the most recent two-month period preceding the loan application. Mortgage  loans
underwritten  under the Reduced  Documentation Program generally  are limited to
self-employed borrowers with  credit histories that  demonstrate an  established
ability  to repay  indebtedness in a  timely fashion.  The maximum loan-to-value
ratio  (including  secondary   financing),  which  is   more  restrictive   than
Countrywide's standard underwriting, ranges up to a 70% maximum.
 
                                      S-14
 
<PAGE>

<PAGE>
     Under  the  No Ratio  Documentation Program,  Countrywide obtains  from the
prospective borrowers either a  verification of deposit  or bank statements  for
the  most recent three-month period preceding  the loan application but does not
require verification of the  borrower's income. This program  is not limited  to
self  employed borrowers but rather requires continuous employment with the same
employer or in the same industry for  a certain period of time (2-4 years).  The
maximum  loan-to-value  ratio  (including secondary  financing),  which  is more
restrictive than  Countrywide's  standard  underwriting, ranges  up  to  an  80%
maximum.
 
     The  No Income/No Asset  Documentation Program requires  no verification of
assets or income.  This program is  not limited to  self employed borrowers  but
rather  requires  continous employment  with the  same employer  or in  the same
industry for a certain period of time (1 year). The maximum loan-to-value  ratio
(including  secondary financing),  which is more  restrictive than Countrywide's
standard underwriting, ranges up to a 75% maximum.
 
     The Streamlined Documentation  Program allows  a borrower  to refinance  an
existing  Countrywide  mortgage loan  provided  that, among  other  things, such
mortgage loan has not been  more than 30 days  delinquent in payment during  the
previous  twelve-month  period.  Under  the  Streamlined  Documentation Program,
appraisals are obtained only  if the loan being  refinanced had a  loan-to-value
ratio  at  the time  of origination  in excess  of 60%.  In addition,  under the
Streamlined Documentation  Program,  a credit  report  is obtained  but  only  a
limited credit review is conducted, no income or asset verification is required,
and  telephonic  verification  of  employment  is  permitted.  Permitted maximum
Loan-to-Value Ratios under  the Streamlined  Documentation Program  range up  to
100%.
 
     Countrywide does not maintain separate records regarding the delinquency or
foreclosure  rates of mortgage  loans underwritten under  any of the Alternative
Documentation Program,  the Reduced  Documentation  Program or  the  Streamlined
Documentation  Program, as compared  to mortgage loans  underwritten pursuant to
its standard underwriting criteria. However,  Countrywide does not believe  that
there  are material differences regarding  the delinquency and foreclosure rates
of mortgage loans underwritten under the Alternative Documentation Program,  the
Reduced  Documentation  Program  and the  Streamlined  Documentation  Program as
compared  to  mortgage  loans  underwritten  under  its  standard   underwriting
criteria.
 
                          SERVICING OF MORTGAGE LOANS
 
GENERAL
 
     The  Master Servicer will service the Mortgage Loans in accordance with the
terms set forth in  the Agreement. The  Master Servicer may  perform any of  its
obligations   under   the   Agreement   through   one   or   more  subservicers.
Notwithstanding any  such subservicing  arrangement,  the Master  Servicer  will
remain liable for its servicing duties and obligations under the Agreement as if
the Master Servicer alone were servicing the Mortgage Loans.
 
THE MASTER SERVICER
 
     Countrywide  Home Loans, Inc. ('Countrywide'), a New York corporation and a
subsidiary of Countrywide Credit Industries,  Inc., will act as Master  Servicer
for  the  Mortgage  Loans  pursuant to  the  Agreement.  Countrywide  is engaged
primarily in the mortgage banking business, and as such, originates,  purchases,
sells and services mortgage loans. Countrywide originates mortgage loans through
a  retail branch  system and  through mortgage  loan brokers  and correspondents
nationwide. Countrywide's mortgage  loans are principally  first-lien, fixed  or
adjustable rate mortgage loans secured by single-family residences.
 
     At  February  28,  1997 Countrywide  provided  servicing  for approximately
$158.6 billion aggregate principal amount  of mortgage loans, substantially  all
of which are being serviced for unaffiliated persons.
 
     The  principal executive  offices of Countrywide  are located  at 155 North
Lake Avenue, Pasadena, California 91101-7139.
 
     Countrywide initially services substantially all  of the mortgage loans  it
originates  or  acquires. In  addition, Countrywide  has  purchased in  bulk the
rights to service mortgage loans originated by other lenders. Servicing includes
collecting and remitting loan payments,  accounting for principal and  interest,
holding  escrow  (impound)  funds for  payment  of taxes  and  insurance, making
inspections as required of the mortgaged premises,
 
                                      S-15
 
<PAGE>

<PAGE>
contacting delinquent  mortgagors,  supervising  foreclosures in  the  event  of
unremedied defaults and generally administering the loans, for which Countrywide
receives  servicing fees. Countrywide has in the past and may in the future sell
to other mortgage bankers a portion  of its portfolio of loan servicing  rights.
In  addition,  see  'The  Pooling  and Servicing  Agreement  --  Evidence  as to
Compliance' in the Prospectus for a  description of the annual servicing  report
and  the report of the independent public accountants required to be provided by
Countrywide in its capacity as Master Servicer under the Agreement.
 
MORTGAGE LOAN PRODUCTION
 
     The following table  sets forth, by  number and dollar  amount of  mortgage
loans,  Countrywide's  residential  mortgage  loan  production  for  the periods
indicated.
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED FEBRUARY 28 (29),
                                                    --------------------------------------------------------------
                                                       1993         1994         1995         1996         1997
                                                    ----------   ----------   ----------   ----------   ----------
                                                      (DOLLAR AMOUNTS IN MILLIONS, EXCEPT AVERAGE LOAN BALANCE)
<S>                                                 <C>          <C>          <C>          <C>          <C>
FHA/VA Loans
     Number of Loans.............................       42,022       67,154       72,365      125,127      143,587
     Volume of Loans.............................   $  3,717.9   $  5,985.5   $  6,808.3   $ 12,259.3   $ 13,657.1
Conventional Loans
     Number of Loans.............................      192,385      315,699      175,823      191,534      219,464
     Volume of Loans.............................   $ 28,669.9   $ 46,473.4   $ 20,958.7   $ 21,883.4   $ 24,153.7
Total Loans
     Number of Loans.............................      234,407      382,853      250,335      326,588      363,051
     Volume of Loans.............................   $ 32,387.8   $ 52,458.9   $ 27,866.2   $ 34,583.7   $ 37,810.8
Average Loan Balance.............................   $  138,000   $  137,000   $  111,000   $  106,000   $  104,000
</TABLE>
 
FORECLOSURE AND DELINQUENCY EXPERIENCE
 
     Historically, a  variety of  factors, including  the appreciation  of  real
estate   values,  have  limited  the  Master  Servicer's  loss  and  delinquency
experience on  its  portfolio  of  serviced mortgage  loans.  There  can  be  no
assurance that factors beyond the Master Servicer's control, such as national or
local economic conditions or downturns in the real estate markets of its lending
areas,  will  not result  in increased  rates  of delinquencies  and foreclosure
losses in the future.
 
     Over the last several years, there has been a general deterioration of  the
real  estate market and weakening of the economy in many regions of the country,
including California. The general  deterioration of the  real estate market  has
been  reflected in increases  in delinquencies of loans  secured by real estate,
slower absorption rates of  real estate into the  market and lower sales  prices
for  real estate.  The general  weakening of the  economy has  been reflected in
decreases in the financial strength of  borrowers and decreases in the value  of
collateral  serving as security for loans. If the real estate market and economy
continue  to  decline,  the  Master  Servicer  may  experience  an  increase  in
delinquencies  on  the loans  it services  and higher  net losses  on liquidated
loans.
 
     The following table summarizes the delinquency and foreclosure  experience,
respectively, on the dates indicated, of conventional mortgage loans serviced or
master  serviced  by  the  Master  Servicer.  The  delinquency  and  foreclosure
percentages may be affected by  the size and relative  lack of seasoning of  the
servicing portfolio which increased from approximately $54.4 billion at February
28,  1993 to approximately $84.6 billion  at February 28, 1994, to approximately
$113.1 billion at February 28, 1995 to approximately $136.8 billion at  February
29,  1996 and to approximately $158.6 billion at February 28, 1997. Accordingly,
the  information  should  not  be  considered  as  a  basis  for  assessing  the
likelihood,    amount    or    severity   of    delinquency    or    losses   on
 
                                      S-16
 
<PAGE>

<PAGE>
the Mortgage  Loans and  no assurances  can be  given that  the foreclosure  and
delinquency  experience presented in the table  below will be indicative of such
experience on the Mortgage Loans:
 
<TABLE>
<CAPTION>
                                                                                    AT FEBRUARY 28 (29),
                                                                        --------------------------------------------
                                                                        1993      1994      1995      1996      1997
                                                                        ----      ----      ----      ----      ----
<S>                                                                     <C>       <C>       <C>       <C>       <C>
Delinquent Mortgage Loans and Pending Foreclosures at Period
  End(1):
     30-59 days....................................................     2.05%     1.82%     1.80%     2.13%     2.26%
     60-89 days....................................................     0.40      0.28      0.29      0.48      0.52
     90 days or more (excluding pending foreclosures)..............     0.58      0.39      0.42      0.59      0.66
                                                                        ----      ----      ----      ----      ----
          Total of delinquencies...................................     3.03%     2.49%     2.51%     3.20%     3.44%
                                                                        ----      ----      ----      ----      ----
                                                                        ----      ----      ----      ----      ----
Foreclosures pending...............................................     0.36%     0.29%     0.29%     0.49%     0.71%
                                                                        ----      ----      ----      ----      ----
                                                                        ----      ----      ----      ----      ----
Total delinquencies and foreclosures pending.......................     3.39%     2.78%     2.80%     3.69%     4.15%
                                                                        ----      ----      ----      ----      ----
                                                                        ----      ----      ----      ----      ----
</TABLE>
 
- ------------
 
(1)  As a  percentage of  the total  number of  loans serviced  excluding  loans
     subserviced for others.
 
SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
     The  Expense Fees with respect to the  Mortgage Pool are payable out of the
interest payments on  each Mortgage Loan.  The Expense Fees  will be 0.259%  per
annum  of the Stated Principal  Balance of each Mortgage  Loan. The Expense Fees
consist of (a) servicing compensation payable to the Master Servicer in  respect
of  its master  servicing activities (the  'Master Servicing Fee')  and (b) fees
payable to  the  Trustee in  respect  of its  activities  as trustee  under  the
Agreement.  The  Master Servicing  Fee will  be  0.25% per  annum of  the Stated
Principal Balance of each Mortgage Loan. The Master Servicer is obligated to pay
certain ongoing expenses  associated with  the Trust  Fund and  incurred by  the
Master  Servicer in connection with its responsibilities under the Agreement and
such amounts will be  paid by the  Master Servicer out  of the Master  Servicing
Fee.  The  amount of  the Master  Servicing  Fee is  subject to  adjustment with
respect to prepaid Mortgage Loans, as described herein under ' -- Adjustment  to
Master  Servicing Fee  in Connection with  Certain Prepaid  Mortgage Loans.' The
Master  Servicer  is   also  entitled  to   receive,  as  additional   servicing
compensation,  all late payment fees, assumption  fees and other similar charges
and all reinvestment  income earned  on amounts  on deposit  in the  Certificate
Account  and Distribution Account. The  Net Mortgage Rate of  a Mortgage Loan is
the Mortgage Rate thereof minus the  Expense Fees with respect to such  Mortgage
Loan  (expressed  as a  per  annum percentage  of  the Stated  Principal Balance
thereof).
 
ADJUSTMENT TO MASTER SERVICING FEE IN CONNECTION WITH CERTAIN PREPAID MORTGAGE
LOANS
 
     When a borrower prepays a Mortgage Loan between Due Dates, the borrower  is
required  to pay interest on  the amount prepaid only  to the date of prepayment
and not  thereafter. Except  with respect  to  the month  of the  Cut-off  Date,
principal  prepayments by  borrowers received  by the  Master Servicer  from the
first day through the fifteenth day of  a calendar month will be distributed  to
Certificateholders  on the  Distribution Date  in the  same month  in which such
prepayments are  received  and,  accordingly,  no shortfall  in  the  amount  of
interest  to be  distributed to Certificateholders  with respect  to the prepaid
Mortgage Loans results. Conversely, principal prepayments by borrowers  received
by  the Master  Servicer from the  sixteenth day (or,  in the case  of the first
Distribution Date, from  the Cut-off Date)  through the last  day of a  calendar
month  will be distributed to Certificateholders on the Distribution Date in the
month following the month of receipt and, accordingly, a shortfall in the amount
of interest to be distributed to Certificateholders with respect to such prepaid
Mortgage Loans would result. Pursuant to the Agreement, the Master Servicing Fee
for any month  will be reduced,  but not by  more than one-half  of such  Master
Servicing Fee, by an amount sufficient to pass through to Certificateholders the
full  amount of interest to which they would be entitled in respect of each such
prepaid Mortgage  Loan  on  the  related Distribution  Date.  If  shortfalls  in
interest  as a result of  prepayments in any Prepayment  Period exceed an amount
equal to one-half of the Master  Servicing Fee otherwise payable on the  related
Distribution  Date,  the  amount  of interest  available  to  be  distributed to
Certificateholders will  be reduced  by  the amount  of  such excess.  Any  such
reduction allocated to the Class A-3 Certificates will be covered by the Policy.
See 'Description of the Certificates -- Interest' and 'Credit Enhancement -- The
Financial Guaranty Insurance Policy' herein.
 
                                      S-17
 
<PAGE>

<PAGE>
ADVANCES
 
     Subject  to the following limitations, the Master Servicer will be required
to advance prior to each Distribution Date,  from its own funds or funds in  the
Certificate Account that do not constitute Available Funds for such Distribution
Date,  an amount equal to the aggregate of payments of principal and interest on
the Mortgage Loans (net of the Master Servicing Fee with respect to the  related
Mortgage Loans) which were due on the related Due Date and which were delinquent
on  the  related  Determination  Date, together  with  an  amount  equivalent to
interest on each Mortgage  Loan as to which  the related Mortgaged Property  has
been  acquired  by  the  Trust  Fund  through  foreclosure  or  deed-in-lieu  of
foreclosure ('REO Property') (any such advance, an 'Advance').
 
     Advances are intended to maintain a regular flow of scheduled interest  and
principal  payments  on  the Certificates  rather  than to  guarantee  or insure
against losses. The Master Servicer is  obligated to make Advances with  respect
to  delinquent payments of principal of or interest on each Mortgage Loan to the
extent that  such Advances  are, in  its reasonable  judgment, recoverable  from
future payments and collections or insurance payments or proceeds of liquidation
of  the  related  Mortgage  Loan.  If  the  Master  Servicer  determines  on any
Determination Date to make  an Advance, such Advance  will be included with  the
distribution to Certificateholders on the related Distribution Date. Any failure
by  the Master Servicer to make an  Advance as required under the Agreement with
respect to the Certificates will constitute  an Event of Default thereunder,  in
which  case the Trustee  or the successor  master servicer will  be obligated to
make any such Advance, in accordance with the terms of the Agreement.
 
                        DESCRIPTION OF THE CERTIFICATES
 
GENERAL
 
     The Certificates will be issued pursuant to the Agreement. Set forth  below
are  summaries  of  the specific  terms  and  provisions pursuant  to  which the
Certificates will  be issued.  The  following summaries  do  not purport  to  be
complete  and are subject to,  and are qualified in  their entirety by reference
to, the provisions of the Agreement. When particular provisions or terms used in
the Agreement are referred to,  the actual provisions (including definitions  of
terms) are incorporated by reference.
 
     The  Mortgage Pass-Through Certificates, Series  1997-3 will consist of the
Class A-1, Class A-2,  Class A-3, Class  A-4, Class A-5,  Class A-6, Class  A-7,
Class  A-8, Class A-9, Class A-10, Class  PO, Class X and Class A-R Certificates
(collectively, the 'Senior Certificates') and the Class M, Class B-1, Class B-2,
Class B-3, Class B-4 and Class B-5 Certificates (collectively, the 'Subordinated
Certificates').  The  Senior  Certificates  and  Subordinated  Certificates  are
collectively  referred  to herein  as the  'Certificates.'  Only the  Classes of
Certificates listed  on  the  cover  page  hereof  (collectively,  the  'Offered
Certificates') are offered hereby. The Classes of Offered Certificates will have
the  respective initial Class  Certificate Balances or  initial Notional Amounts
(subject to the  permitted variance)  and Pass-Through  Rates set  forth on  the
cover page hereof or described herein.
 
     The  Class  Certificate Balance  of  any Class  of  Certificates as  of any
Distribution Date is the initial  Class Certificate Balance thereof (A)  reduced
by  the sum of (i) all amounts previously distributed to holders of Certificates
of such  Class as  payments of  principal, (ii)  the amount  of Realized  Losses
(including  Excess Losses) allocated to such Class  and (iii) in the case of any
Class of  Subordinated Certificates,  any  amounts allocated  to such  Class  in
reduction  of its Class Certificate  Balance in respect of  payments of Class PO
Deferred Amounts, as described below under ' -- Allocation of Losses' and (B) in
the case of the Accrual Components, increased by all interest accrued and  added
to the respective Component Balances thereof prior to such Distribution Date. In
addition,   the  Class  Certificate   Balance  of  the   Class  of  Subordinated
Certificates then outstanding with the highest numerical Class designation  will
be  reduced if  and to the  extent that  the aggregate of  the Class Certificate
Balances of all  Classes of  Certificates, following all  distributions and  the
allocation of Realized Losses on a Distribution Date, exceeds the Pool Principal
Balance as of the Due Date occurring in the month of such Distribution Date. The
Notional Amount Certificates do not have principal balances and are not entitled
to any distributions in respect of principal of the Mortgage Loans.
 
     The  Notional Amount of the Class  X Certificates for any Distribution Date
will be  equal  to  the  aggregate  of the  Stated  Principal  Balances  of  the
Non-Discount  Mortgage Loans with respect to such Distribution Date. The initial
Notional Amount of the Class  X Certificates will be  equal to the aggregate  of
the  Stated  Principal Balance  of  the Non-Discount  Mortgage  Loans as  of the
Cut-off Date.
 
                                      S-18
 
<PAGE>

<PAGE>
     The Senior Certificates will have an initial aggregate principal balance of
approximately $241,599,723  and  will  evidence  in  the  aggregate  an  initial
beneficial  ownership interest  of approximately 96.00%  in the  Trust Fund. The
Class M, Class B-1, Class B-2, Class  B-3, Class B-4 and Class B-5  Certificates
will  each evidence in the aggregate an initial beneficial ownership interest of
approximately 1.70%, 0.80%, 0.60%, 0.30%, 0.30%, and 0.30%, respectively, in the
Trust Fund.
 
     The Book-Entry Certificates will be  issuable in book-entry form only.  The
Physical  Certificates will be issued in fully registered certificated form. The
Class A-R Certificates will be issued as a single Certificate in a  denomination
of $100.
 
BOOK-ENTRY CERTIFICATES
 
     Each  Class  of  Book-Entry Certificates  will  be  issued in  one  or more
certificates which equal the aggregate initial Class Certificate Balance of each
such Class of Certificates and which will be held by a nominee of The Depository
Trust Company (together with any successor depository selected by the Depositor,
the 'Depository'). Beneficial interests in  the Book-Entry Certificates will  be
held   indirectly  by  investors  through   the  book-entry  facilities  of  the
Depository, as described herein. Investors may hold such beneficial interests in
the Book-Entry Certificates (other than the Class A-6, Class A-8, Class A-9  and
Class  A-10  Certificates)  in minimum  denominations  representing  an original
principal amount of $25,000 and integral multiples of $1,000 in excess  thereof.
Investors  may hold beneficial interests in the  Class A-6, Class A-8, Class A-9
and Class A-10  Certificates in minimum  denominations representing an  original
principal  amount of  $1,000 or  any integral  multiples in  excess thereof. One
investor of each Class of Book-Entry Certificates may hold a beneficial interest
therein that  is not  an integral  multiple of  $1,000. The  Depositor has  been
informed  by  the Depository  that  its nominee  will  be CEDE  &  Co. ('CEDE').
Accordingly, CEDE  is expected  to be  the holder  of record  of the  Book-Entry
Certificates.  Except as described  in the Prospectus  under 'Description of the
Certificates --  Book-Entry  Certificates,'  no person  acquiring  a  Book-Entry
Certificate  (each, a 'beneficial owner') will be entitled to receive a physical
certificate representing such Certificate (a 'Definitive Certificate').
 
     Unless and until Definitive Certificates are issued, it is anticipated that
the only 'Certificateholder'  of the  Book-Entry Certificates will  be CEDE,  as
nominee of the Depository. Beneficial owners of the Book-Entry Certificates will
not  be Certificateholders,  as that term  is used in  the Agreement. Beneficial
owners  are  only  permitted  to  exercise  the  rights  of   Certificateholders
indirectly  through  Financial Intermediaries  and  the Depository.  Monthly and
annual reports on the Trust Fund provided to CEDE, as nominee of the Depository,
may be made available to beneficial owners upon request, in accordance with  the
rules,  regulations and procedures creating and affecting the Depository, and to
the  Financial  Intermediaries  to  whose  Depository  accounts  the  Book-Entry
Certificates of such beneficial owners are credited.
 
     For  a description of the procedures generally applicable to the Book-Entry
Certificates, see 'Description of  the Certificates -- Book-Entry  Certificates'
in the Prospectus.
 
PAYMENTS ON MORTGAGE LOANS; ACCOUNTS
 
     On  or prior  to the  Closing Date, the  Master Servicer  will establish an
account (the 'Certificate Account'), which will  be maintained in trust for  the
benefit of the Certificateholders. Funds credited to the Certificate Account may
be  invested for the benefit and at the risk of the Master Servicer in Permitted
Investments, as defined  in the Agreement,  that are scheduled  to mature on  or
prior  to the business day preceding the  next Distribution Date. On or prior to
the business  day  immediately  preceding each  Distribution  Date,  the  Master
Servicer  will withdraw  from the  Certificate Account  the amount  of Available
Funds and  will deposit  such  Available Funds  in  an account  established  and
maintained   with  the  Trustee   on  behalf  of   the  Certificateholders  (the
'Distribution Account').
 
DISTRIBUTIONS
 
     Distributions on the Certificates will be  made by the Trustee on the  25th
day  of each month, or if such day is  not a business day, on the first business
day thereafter, commencing  in May 1997  (each, a 'Distribution  Date'), to  the
persons in whose names such Certificates are registered at the close of business
on  the last business day of the  month preceding the month of such Distribution
Date (the 'Record Date').
 
                                      S-19
 
<PAGE>

<PAGE>
     Distributions on each Distribution Date will be made by check mailed to the
address of  the  person  entitled  thereto  as  it  appears  on  the  applicable
certificate  register or, in the case of a Certificateholder who holds 100% of a
Class of  Certificates  or who  holds  Certificates with  an  aggregate  initial
Certificate  Balance  of  $1,000,000  or  more or  who  holds  an  Interest Only
Certificate and who has  so notified the Trustee  in writing in accordance  with
the Agreement, by wire transfer in immediately available funds to the account of
such  Certificateholder  at  a  bank  or  other  depository  institution  having
appropriate  wire  transfer  facilities;  provided,  however,  that  the   final
distribution   in  retirement  of  the  Certificates  will  be  made  only  upon
presentment and surrender of such Certificates at the Corporate Trust Office  of
the Trustee.
 
PRIORITY OF DISTRIBUTIONS AMONG CERTIFICATES
 
     As  more  fully  described  herein,  distributions  will  be  made  on each
Distribution Date from Available Funds in  the following order of priority:  (i)
to  interest on each interest bearing  Class of Senior Certificates (except that
with  respect  to  each  Accrual  Component  prior  to  the  applicable  Accrual
Termination  Date, interest  will be added  to the  respective Component Balance
thereof); (ii) to principal on the Classes of Senior Certificates then  entitled
to  receive  distributions  of  principal,  in  the  order  and  subject  to the
priorities set forth herein under 'Description of the
Certificates --  Principal,' in  each case  in  an aggregate  amount up  to  the
maximum  amount  of  principal  to  be  distributed  on  such  Classes  on  such
Distribution Date; (iii) to  any Class PO Deferred  Amounts with respect to  the
Class PO Certificates, but only from amounts that would otherwise be distributed
on  such Distribution  Date as principal  of the  Subordinated Certificates; and
(iv)  to  interest  on  and  then  principal  of  each  Class  of   Subordinated
Certificates, in the order of their numerical Class designations, beginning with
the  Class M  Certificates, in  each case subject  to the  limitations set forth
herein under 'Description of the Certificates -- Principal.'
 
     'Available Funds' with respect  to any Distribution Date  will be equal  to
the  sum  of (i)  all scheduled  installments  of interest  (net of  the related
Expense Fees) and  principal due  on the  Due Date in  the month  in which  such
Distribution  Date occurs and received prior  to the related Determination Date,
together with any Advances in respect thereof; (ii) all proceeds of any  primary
mortgage  guaranty  insurance policies  and  any other  insurance  policies with
respect to the Mortgage Loans,  to the extent such  proceeds are not applied  to
the  restoration of the related Mortgaged  Property or released to the Mortgagor
in  accordance   with  the   Master  Servicer's   normal  servicing   procedures
(collectively,  'Insurance Proceeds')  and all  other cash  amounts received and
retained in  connection with  the liquidation  of defaulted  Mortgage Loans,  by
foreclosure  or  otherwise ('Liquidation  Proceeds')  during the  calendar month
preceding the month of such Distribution Date (in each case, net of unreimbursed
expenses  incurred  in  connection  with   a  liquidation  or  foreclosure   and
unreimbursed  Advances, if any); (iii) all  partial or full prepayments received
during the month preceding the month of such Distribution Date; and (iv) amounts
received with respect to such  Distribution Date as the Substitution  Adjustment
Amount  or purchase price  in respect of  a Deleted Mortgage  Loan or a Mortgage
Loan repurchased by the  Seller or the Master  Servicer as of such  Distribution
Date, reduced by amounts in reimbursement for Advances previously made and other
amounts  as to which the  Master Servicer is entitled  to be reimbursed from the
Certificate Account pursuant to the Agreement.
 
INTEREST
 
     The Classes of Offered Certificates  will have the respective  Pass-Through
Rates set forth or described on the cover hereof.
 
     The  Pass-Through Rate  for the Class  X Certificates  for any Distribution
Date will be equal to the excess of (a) the average of the Net Mortgage Rates of
the Non-Discount Mortgage Loans, weighted on  the basis of the Stated  Principal
Balances  thereof, over (b) 7.50% per annum. The Pass-Through Rate for the Class
X Certificates for the first Distribution  Date is expected to be  approximately
0.3729%  per annum. The Net Mortgage Rate for each Mortgage Loan is the Mortgage
Rate thereof (net of  the interest premium charged  by the related lenders  with
respect  to the Lender  PMI Mortgage Loans)  less the Expense  Fee Rate for such
Mortgage Loan.
 
     On each Distribution Date, to the extent of funds available therefor,  each
interest  bearing Class  of Certificates will  be entitled to  receive an amount
(or, in the  case of each  Accrual Component,  have such interest  added to  its
Component  Balance until the  Class A-7-1 Component  Accrual Termination Date or
the Class A-7-2
 
                                      S-20
 
<PAGE>

<PAGE>
Component Accrual Termination Date, as appropriate) allocable to interest (as to
each such Class, the 'Interest Distribution Amount') with respect to the related
Interest Accrual  Period.  The Interest  Distribution  Amount for  any  interest
bearing  Class  will be  equal  to the  sum of  (i)  interest at  the applicable
Pass-Through Rate on the related  Class Certificate Balance or Notional  Amount,
as the case may be, and (ii) the sum of the amounts, if any, by which the amount
described  in  clause (i)  above on  each prior  Distribution Date  exceeded the
amount actually distributed as interest on such prior Distribution Dates and not
subsequently distributed ('Unpaid Interest Amounts'). The Class PO  Certificates
are Principal Only Certificates and will not bear interest.
 
     Each  of the Class A-7-1 and Class A-7-2 Components are Accrual Components.
Interest will  accrue on  each of  the Class  A-7-1 and  Class A-7-2  Components
during  each Interest Accrual Period at a per annum rate of 7.50%. However, such
interest will not be  distributed as interest  on either of  the Class A-7-1  or
Class  A-7-2 Components until (i) in the  case of the Class A-7-1 Component, the
earlier of (a) the Senior Credit Support Depletion Date and (b) the Distribution
Date on which the  Class Certificate Balance of  the Class A-6 Certificates  has
been  reduced to zero (the 'Class A-7-1 Component Accrual Termination Date') and
(ii) in the case  of the Class  A-7-2 Component, the earlier  of (a) the  Senior
Credit  Support Depletion Date and (b) the  Distribution Date on which the Class
Certificate Balance of the Class A-10 Certificates has been reduced to zero (the
'Class A-7-2  Component  Accrual Termination  Date').  Interest so  accrued  and
unpaid  will be  added to the  Component Balances  of the Class  A-7-1 and Class
A-7-2 Components, respectively, on the  related Distribution Date. On and  prior
to  the Class A-7-1  Component Accrual Termination Date,  the amount of interest
accrued on the Class A-7-1 Component shall be paid as principal on the Class A-6
Certificates, up to its Targeted Balance for such Distribution Date, and then as
principal on  the  Class  A-7-1 Component.  On  and  prior to  the  Class  A-7-2
Component  Accrual Termination Date, the amount of interest accrued on the Class
A-7-2 Component shall be paid as principal on the Class A-10 Certificates, up to
its Targeted Balance for  such Distribution Date, and  then as principal on  the
Class A-7-2 Component.
 
     With  respect to each Distribution Date,  the 'Interest Accrual Period' for
each interest bearing Class of Certificates will be the calendar month preceding
the month of such Distribution Date.
 
     The interest entitlement described above for each Class of Certificates for
any Distribution Date will be reduced by the amount of 'Net Interest Shortfalls'
for such Distribution  Date. With  respect to  any Distribution  Date, the  'Net
Interest  Shortfall' is equal to (i) the amount of interest that would otherwise
have been received with respect to any Mortgage Loan that was the subject of (x)
a Relief Act Reduction or  (y) a Special Hazard  Loss, Fraud Loss, Debt  Service
Reduction or Deficient Valuation, after the exhaustion of the respective amounts
of  coverage provided by the Subordinated  Certificates for such types of losses
and  (ii)  any  Net  Prepayment   Interest  Shortfalls  with  respect  to   such
Distribution  Date. A  'Relief Act  Reduction' is a  reduction in  the amount of
monthly interest  payment on  a  Mortgage Loan  pursuant  to the  Soldiers'  and
Sailors'  Civil Relief Act of  1940. See 'Certain Legal  Aspects of the Mortgage
Loans --  Soldiers' and  Sailors'  Civil Relief  Act'  in the  Prospectus.  With
respect  to any Distribution Date, a  'Net Prepayment Interest Shortfall' is the
amount by  which the  aggregate  of Prepayment  Interest Shortfalls  during  the
portion  of the Prepayment Period occurring  in the calendar month preceding the
month of such  Distribution Date exceeds  the aggregate amount  payable on  such
Distribution  Date  by  the Master  Servicer  as described  under  'Servicing of
Mortgage Loans -- Adjustment to Master Servicing Fee in Connection with  Certain
Prepaid  Mortgage Loans.'  A 'Prepayment  Interest Shortfall'  is the  amount by
which interest paid by a borrower  in connection with a prepayment of  principal
on  a Mortgage Loan  is less than  one month's interest  at the related Mortgage
Rate on the Stated Principal Balance of such Mortgage Loan. Each Class' pro rata
share of such Net Interest  Shortfalls will be based  on the amount of  interest
such  Class otherwise would have  been entitled to receive  (or accrete) on such
Distribution Date.
 
     Accrued interest to be distributed or  added to principal, as the case  may
be,  on any Distribution Date  will be calculated, in  the case of each interest
bearing Class of  Certificates, on the  basis of the  related Class  Certificate
Balance,  Component Balance or Notional Amount, as applicable, immediately prior
to such Distribution Date. Interest will be calculated and payable on the  basis
of a 360-day year divided into twelve 30-day months.
 
     In  the event that,  on a particular Distribution  Date, Available Funds in
the Certificate Account applied in the order described above under ' -- Priority
of  Distributions  Among  Certificates'  are  not  sufficient  to  make  a  full
distribution  or addition  to principal,  as the  case may  be, of  the interest
entitlement on  the  Certificates, interest  will  be distributed  or  added  to
principal,  as the case may be, on  each Class of Certificates of equal priority
based on  the amount  of interest  each  such Class  would otherwise  have  been
entitled to receive or accrete
 
                                      S-21
 
<PAGE>

<PAGE>
in  the absence of  such shortfall. Any  Unpaid Interest Amount  will be carried
forward and added to the amount holders of each such Class of Certificates  will
be  entitled  to  receive or  accrete  on  the next  Distribution  Date.  Such a
shortfall could occur,  for example, if  losses realized on  the Mortgage  Loans
were  exceptionally high or were concentrated  in a particular month. Any Unpaid
Interest Amount so carried forward will not bear interest.
 
PRINCIPAL
 
     General. All payments and other amounts received in respect of principal of
the Mortgage Loans will be allocated between (i) the Senior Certificates  (other
than  the Notional  Amount Certificates and  the Class PO  Certificates) and the
Subordinated Certificates and (ii) the Class PO Certificates, in each case based
on  the  applicable  Non-PO  Percentage   and  the  applicable  PO   Percentage,
respectively, of such amounts.
 
     The Non-PO Percentage with respect to any Mortgage Loan with a Net Mortgage
Rate  ('NMR') less  than 7.50%  (each such  Mortgage Loan,  a 'Discount Mortgage
Loan') will be equal to NMR [div]  7.50%. The Non-PO Percentage with respect  to
any  Mortgage Loan with a Net Mortgage Rate equal to or greater than 7.50% (each
such Mortgage  Loan,  a 'Non-Discount  Mortgage  Loan')  will be  100%.  The  PO
Percentage  with  respect  to  any  Discount  Mortgage  Loan  will  be  equal to
(7.50% - NMR) [div]  7.50%. The PO Percentage  with respect to any  Non-Discount
Mortgage Loan will be 0%.
 
     Components.  Solely for purposes of  allocating distributions of principal,
the Class  A-7 Certificates  will be  comprised of  multiple payment  components
having  the designations, initial Component  Balances and Pass-Through Rates set
forth below:
 
<TABLE>
<CAPTION>
                                                                               INITIAL
                                                                              COMPONENT     PASS-THROUGH
DESIGNATION                                                                    BALANCE          RATE
- --------------------------------------------------------------------------   -----------    ------------
 
<S>                                                                          <C>            <C>
Class A-7-1 Component.....................................................   $ 1,427,960         7.50%
Class A-7-2 Component.....................................................   $12,100,000         7.50%
</TABLE>
 
     Designations. The Class A-1, Class A-2, Class A-5, Class A-8 and Class  A-9
Certificates  are  'Planned Principal  Classes.' The  Class  A-6 and  Class A-10
Certificates are 'Targeted  Principal Classes.' The  Class A-7 Certificates  are
the  'Support Class.'  The Planned  Balances and  the Targeted  Balances for the
related Classes  for each  Distribution  Date are  set  forth in  the  Principal
Balance Schedules herein.
 
     Non-PO  Formula  Principal Amount.  On each  Distribution Date,  the Non-PO
Formula Principal  Amount  will  be  distributed  as  principal  of  the  Senior
Certificates  (other than the Notional Amount Certificates and the Class A-4 and
Class PO Certificates)  in an  amount up  to the  Senior Principal  Distribution
Amount,  as principal of the Class A-4 Certificates in an amount up to the Class
A-4  Principal  Distribution  Amount,  and  as  principal  of  the  Subordinated
Certificates, in an amount up to the Subordinated Principal Distribution Amount.
 
     The  Non-PO Formula Principal  Amount for any  Distribution Date will equal
the sum  of the  applicable Non-PO  Percentage of  (a) all  monthly payments  of
principal  due on each Mortgage Loan on  the related Due Date, (b) the principal
portion of the purchase price of each Mortgage Loan that was repurchased by  the
Seller or another person pursuant to the Agreement as of such Distribution Date,
(c)  the Substitution Adjustment Amount in  connection with any Deleted Mortgage
Loan received with respect to such Distribution Date, (d) any Insurance Proceeds
or Liquidation Proceeds allocable to  recoveries of principal of Mortgage  Loans
that  are not yet  Liquidated Mortgage Loans received  during the calendar month
preceding the month of such Distribution Date, (e) with respect to each Mortgage
Loan that became a Liquidated Mortgage Loan during the calendar month  preceding
the  month of  such Distribution  Date, the  amount of  the Liquidation Proceeds
allocable to principal received with respect  to such Mortgage Loan and (f)  all
partial  and full principal prepayments by borrowers received during the related
Prepayment Period.
 
     Class A-7-1 Component Accrual Amount. On  each Distribution Date up to  and
including  the Class  A-7-1 Component  Accrual Termination  Date, the  amount of
accrued interest on  the Class A-7-1  Component added to  the Component  Balance
thereof  (the 'Class  A-7-1 Component  Accrual Amount')  will be  distributed as
principal in the following order of priority: (i) to the Class A-6 Certificates,
until the Class  Certificate Balance thereof  has been reduced  to its  Targeted
Balance  for such Distribution Date and (ii) to the Class A-7-1 Component, until
the Component Balance thereof has been reduced to zero.
 
                                      S-22
 
<PAGE>

<PAGE>
     On each  Distribution Date,  distributions in  respect of  the Class  A-7-1
Component  Accrual Amount will be  made prior to the  distribution of the Senior
Principal Distribution Amount.
 
     Class A-7-2 Component Accrual Amount. On  each Distribution Date up to  and
including  the Class  A-7-2 Component  Accrual Termination  Date, the  amount of
accrued interest on  the Class A-7-2  Component added to  the Component  Balance
thereof  (the 'Class  A-7-2 Component  Accrual Amount')  will be  distributed as
principal  in  the  following  order  of   priority:  (i)  to  the  Class   A-10
Certificates,  until the Class  Certificate Balance thereof  has been reduced to
its Targeted Balance  for such  Distribution Date and  (ii) to  the Class  A-7-2
Component, until the Component Balance thereof has been reduced to zero.
 
     On  each Distribution  Date, distributions  in respect  of the  Class A-7-2
Component Accrual Amount will  be made prior to  the distribution of the  Senior
Principal Distribution Amount.
 
     Senior  Principal Distribution Amount.  On  each Distribution Date prior to
the Senior Credit Support Depletion  Date, the Non-PO Formula Principal  Amount,
up  to  the  amount  of  the  Senior  Principal  Distribution  Amount  for  such
Distribution Date, will be distributed as principal of the following Classes  of
Senior Certificates in the following order of priority:
 
          (i) to the Class A-R Certificates, until the Class Certificate Balance
     thereof has been reduced to zero;
 
          (ii)  concurrently, (a) 81.3912475506% pursuant  to the Group I Payout
     Rule and (b) 18.6087524494% pursuant to the Group II Payout Rule, until the
     Class Certificate Balances of the Class A-5 and Class A-6 Certificates  and
     the Component Balance of the Class A-7-1 Component have been reduced in the
     aggregate to $3,899,960.
 
          (iii)  concurrently, (a)  87.3582980334% to  be paid  sequentially (A)
     first, pursuant to the Group I Payout Rule and (B) second, to the Class A-3
     Certificates and (b) 12.6417019666% pursuant  to the Group II Payout  Rule,
     until  the Class Certificate Balance of the Class A-3 Certificates has been
     reduced to $6,699,900.
 
          (iv) to the Class A-3 Certificates until the Class Certificate Balance
     thereof has been reduced to zero.
 
     As used above,  the 'Group I  Payout Rule' shall  mean the distribution  of
principal of the following Classes of Senior Certificates in the following order
of priority:
 
          (i) sequentially, to the Class A-1, Class A-2, Class A-8 and Class A-9
     Certificates,  in  that  order,  until  the  respective  Class  Certificate
     Balances thereof have been reduced to their respective Planned Balances for
     such Distribution Date;
 
          (ii) to  the  Class  A-10 Certificates  until  the  Class  Certificate
     Balance  thereof  has  been  reduced  to  its  Targeted  Balance  for  such
     Distribution Date;
 
          (iii) to the Class A-7-2 Component until the Component Balance thereof
     has been reduced to zero;
 
          (iv) to the Class  A-10 Certificates, without  regard to its  Targeted
     Balance and until the Class Certificate Balance thereof has been reduced to
     zero; and
 
          (v) sequentially, to the Class A-1, Class A-2, Class A-8 and Class A-9
     Certificates,  in that  order, without  regard to  their respective Planned
     Balances and until the Class Certificate Balances thereof have been reduced
     to zero.
 
     As used above, the  'Group II Payout Rule'  shall mean the distribution  of
principal of the following Classes of Senior Certificates in the following order
of priority:
 
          (i) to the Class A-5 Certificates, until the Class Certificate Balance
     thereof has been reduced to its Planned Balance for such Distribution Date;
 
          (ii)  to  the  Class  A-6 Certificates,  until  the  Class Certificate
     Balance  thereof  has  been  reduced  to  its  Targeted  Balance  for  such
     Distribution Date;
 
          (iii) to the Class A-7-1 Component until the Component Balance thereof
     has been reduced to zero;
 
          (iv)  to the  Class A-6 Certificates,  without regard  to its Targeted
     Balance and until the Class Certificate Balance thereof has been reduced to
     zero; and
 
          (v) to  the Class  A-5  Certificates, without  regard to  its  Planned
     Balance and until the Class Certificate Balance thereof has been reduced to
     zero.
 
                                      S-23
 
<PAGE>

<PAGE>
     Notwithstanding  the foregoing, on each Distribution  Date on and after the
Senior Credit Support Depletion Date,  the Non-PO Formula Principal Amount  will
be  distributed, concurrently as principal of the Classes of Senior Certificates
(other than the Notional Amount Certificates and the Class PO Certificates), pro
rata, in accordance with their respective Class Certificate Balances immediately
prior to  such Distribution  Date  without regard  to  any Planned  Balances  or
Targeted Balances for such Distribution Date.
 
     The  Senior Credit Support  Depletion Date is  the date on  which the Class
Certificate Balance of each Class of Subordinated Certificates has been  reduced
to zero.
 
     The  Senior Principal  Distribution Amount  for any  Distribution Date will
equal the sum of (i) the  Senior Percentage of the applicable Non-PO  Percentage
of all amounts described in clauses (a) through (d) of the definition of 'Non-PO
Formula  Principal Amount' for such Distribution Date, (ii) with respect to each
Mortgage Loan that became a Liquidated  Mortgage Loan during the calendar  month
preceding  the month  of such  Distribution Date, the  lesser of  (x) the Senior
Percentage of the applicable Non-PO  Percentage of the Stated Principal  Balance
of  such Mortgage Loan and  (y) either (A) the  Senior Prepayment Percentage, if
the Senior Prepayment Percentage is less than 100%, or, if the Senior Prepayment
Percentage  equals  100%,  the  percentage  obtained  by  dividing  the   Senior
Percentage  by the sum of the Senior  Percentage and the Class A-4 Percentage or
(B) if an  Excess Loss was  sustained with respect  to such Liquidated  Mortgage
Loan  during  such  preceding  calendar  month,  the  Senior  Percentage  of the
applicable Non-PO Percentage of the amount of the Liquidation Proceeds allocable
to principal received with respect to  such Mortgage Loan, and (iii) the  Senior
Prepayment  Percentage of the applicable  Non-PO Percentage of amounts described
in clause (f) of  the definition of 'Non-PO  Formula Principal Amount' for  such
Distribution  Date;  provided, however,  that if  a Bankruptcy  Loss that  is an
Excess Loss  is  sustained  with respect  to  a  Mortgage Loan  that  is  not  a
Liquidated  Mortgage  Loan, the  Senior  Principal Distribution  Amount  will be
reduced on  the  related Distribution  Date  by  the Senior  Percentage  of  the
applicable Non-PO Percentage of the principal portion of such Bankruptcy Loss.
 
     'Stated  Principal Balance' means as to any Mortgage Loan and Due Date, the
unpaid principal balance of such Mortgage Loan as of such Due Date, as specified
in the amortization schedule at the time relating thereto (before any adjustment
to such amortization schedule by reason  of any moratorium or similar waiver  or
grace  period),  after giving  effect to  any  previous partial  prepayments and
Liquidation Proceeds received and  to the payment of  principal due on such  Due
Date  and irrespective of  any delinquency in payment  by the related Mortgagor.
The Pool Principal  Balance with  respect to  any Distribution  Date equals  the
aggregate  of the Stated Principal Balances of the Mortgage Loans outstanding on
the Due Date in the month preceding the month of such Distribution Date.
 
     The  Senior  Percentage  for  any  Distribution  Date  is  the   percentage
equivalent  of a fraction the  numerator of which is  the aggregate of the Class
Certificate Balances of each Class of Senior Certificates (other than the  Class
A-4  and  Class  PO  Certificates)  immediately  prior  to  such  date  and  the
denominator of which is the aggregate  of the Class Certificate Balances of  all
Classes of Certificates, other than the Class PO Certificates, immediately prior
to  such date.  The Subordinated  Percentage for  any Distribution  Date will be
calculated as the difference between 100%  and the sum of the Senior  Percentage
and the Class A-4 Percentage for such date.
 
     The Senior Prepayment Percentage for any Distribution Date occurring during
the  five  years  beginning on  the  first  Distribution Date  will  equal 100%.
Thereafter, the Senior Prepayment Percentage will, except as described below, be
subject to  gradual reduction  as  described in  the following  paragraph.  This
disproportionate  allocation  of  certain  unscheduled  payments  in  respect of
principal will have the  effect of accelerating the  amortization of the  Senior
Certificates  (other than the Class A-4 and Class PO Certificates) which receive
these unscheduled  payments  of principal  while,  in the  absence  of  Realized
Losses,  increasing the interest in the  Pool Principal Balance evidenced by the
Class A-4 Certificates and Subordinated Certificates. Increasing the  respective
interest  of  the  Subordinated  Certificates relative  to  that  of  the Senior
Certificates is  intended  to preserve  the  availability of  the  subordination
provided by the Subordinated Certificates.
 
     The  Senior Prepayment Percentage for any Distribution Date occurring on or
after the fifth anniversary of the  first Distribution Date will be as  follows:
for  any Distribution Date  in the first year  thereafter, the Senior Percentage
plus 70% of the sum of the Class A-4 Percentage and the Subordinated  Percentage
for  such  Distribution  Date; for  any  Distribution  Date in  the  second year
thereafter, the  Senior  Percentage  plus  60%  of the  sum  of  the  Class  A-4
Percentage  and the Subordinated Percentage for  such Distribution Date; for any
Distribution Date in the third year  thereafter, the Senior Percentage plus  40%
of  the sum of the Class A-4 Percentage and the Subordinated Percentage for such
Distribution Date; for any Distribution Date in the fourth year thereafter,  the
 
                                      S-24
 
<PAGE>

<PAGE>
Senior  Percentage  plus 20%  of the  sum of  the Class  A-4 Percentage  and the
Subordinated Percentage for  such Distribution  Date; and  for any  Distribution
Date thereafter, the Senior Percentage for such Distribution Date (unless on any
Distribution  Date the Senior Percentage  exceeds the initial Senior Percentage,
in which case the Senior Prepayment  Percentage for such Distribution Date  will
once again equal 100%). Notwithstanding the foregoing, no decrease in the Senior
Prepayment  Percentage will occur  unless both of  the following conditions (the
'Step Down Conditions') are satisfied: (i) the outstanding principal balance  of
all  Mortgage Loans delinquent 60 days or  more (averaged over the preceding six
month period),  as  a percentage  of  the  aggregate principal  balance  of  the
Subordinated  Certificates on such  Distribution Date, does  not equal or exceed
50%, and (ii) cumulative Realized Losses  with respect to the Mortgage Loans  do
not exceed (a) with respect to the Distribution Date on the fifth anniversary of
the  first Distribution Date, 30% of the  aggregate of the principal balances of
the Subordinated Certificates as of the Cut-off Date (the 'Original Subordinated
Principal Balance'), (b)  with respect  to the  Distribution Date  on the  sixth
anniversary  of the  first Distribution Date,  35% of  the Original Subordinated
Principal Balance, (c)  with respect  to the  Distribution Date  on the  seventh
anniversary  of the  first Distribution Date,  40% of  the Original Subordinated
Principal Balance,  (d) with  respect to  the Distribution  Date on  the  eighth
anniversary  of the  first Distribution Date,  45% of  the Original Subordinated
Principal Balance, and (e)  with respect to the  Distribution Date on the  ninth
anniversary  of the  first Distribution Date,  50% of  the Original Subordinated
Principal Balance.
 
     The Combined  Prepayment Percentage  as of  any Distribution  Date will  be
calculated  as the difference between 100%  and the Senior Prepayment Percentage
for such date. Except on  and after the Trigger  Date (as described below),  the
Class  A-4 Prepayment Percentage as of  any Distribution Date will be calculated
as the product of (i)  a fraction, expressed as  a percentage, the numerator  of
which is the Class Certificate Balance of the Class A-4 Certificates immediately
prior to such Distribution Date and the denominator of which is the aggregate of
the   Class  Certificate  Balances  of  the   Class  A-4  Certificates  and  the
Subordinated Certificates immediately prior to  such Distribution Date and  (ii)
the Combined Prepayment Percentage. The Subordinated Prepayment Percentage as of
any  Distribution Date will be calculated as the difference between the Combined
Prepayment Percentage and the Class A-4 Prepayment Percentage for such date.
 
     If on  any Distribution  Date the  allocation to  the Class  or Classes  of
Senior  Certificates (other than  the Class A-4 and  Class PO Certificates) then
entitled to distributions of principal of full and partial principal prepayments
and other amounts in the percentage required above would reduce the  outstanding
Class  Certificate Balance of such Class or Classes below zero, the distribution
to such Class or Classes of Certificates of the Senior Prepayment Percentage  of
such  amounts  for such  Distribution  Date will  be  limited to  the percentage
necessary to reduce the related Class Certificate Balance(s) to zero.
 
     Class A-4 Principal Distribution Amount. On each Distribution Date prior to
the Senior Credit Support  Depletion Date, the  Available Funds remaining  after
distribution  of interest  with respect  to the  Senior Certificates,  up to the
amount of  the Class  A-4 Principal  Distribution Amount  for such  Distribution
Date,  will be distributed as principal of the Class A-4 Certificates, until the
Class Certificate Balance thereof has been reduced to zero.
 
     The Class A-4 Principal Distribution Amount for any Distribution Date  will
equal  the  sum  of  (i)  the Class  A-4  Percentage  of  the  applicable Non-PO
Percentage of all amounts described in clauses (a) through (d) of the definition
of 'Non-PO  Formula Principal  Amount'  for such  Distribution Date,  (ii)  with
respect  to each Mortgage Loan that became a Liquidated Mortgage Loan during the
calendar month preceding the month of such Distribution Date, the lesser of  (x)
the  Class  A-4 Percentage  of the  applicable Non-PO  Percentage of  the Stated
Principal Balance  of  such Mortgage  Loan  and (y)  either  (A) the  Class  A-4
Prepayment  Percentage, if the  Class A-4 Prepayment  Percentage is greater than
0%, or,  if  the Class  A-4  Prepayment  Percentage equals  0%,  the  percentage
obtained  by  dividing  the  Class  A-4 Percentage  by  the  sum  of  the Senior
Percentage and the Class A-4 Percentage or  (B) if an Excess Loss was  sustained
with  respect to  such Liquidated Mortgage  Loan during  such preceding calendar
month, the  Class A-4  Percentage of  the applicable  Non-PO Percentage  of  the
Liquidation  Proceeds  allocable  to  principal received  with  respect  to such
Mortgage Loan, and (iii) the Class  A-4 Prepayment Percentage of the  applicable
Non-PO  Percentage of the amounts  described in clause (f)  of the definition of
'Non-PO Formula Principal Amount' for such Distribution Date; provided, however,
that if a Bankruptcy Loss that is an Excess Loss is sustained with respect to  a
Mortgage  Loan that is not  a Liquidated Mortgage Loan,  the Class A-4 Principal
Distribution Amount will  be reduced  on the  related Distribution  Date by  the
Class  A-4  Percentage  of the  applicable  Non-PO Percentage  of  the principal
portion of such Bankruptcy Loss.
 
                                      S-25
 
<PAGE>

<PAGE>
     The Class  A-4  Percentage for  any  Distribution Date  is  the  percentage
equivalent  of a fraction the  numerator of which is  the aggregate of the Class
Certificate Balance of the Class A-4 Certificates immediately prior to such date
and the denominator of which is the aggregate of the Class Certificate  Balances
of   all  Classes  of  Certificates  (other  than  the  Class  PO  Certificates)
immediately prior to such Date.
 
     As used herein,  the Trigger  Date is the  Distribution Date  on which  the
Class  A-4  Certificates are  the only  remaining  Class of  Senior Certificates
(other than the Class PO Certificates) outstanding.
 
     The Class A-4  Prepayment Percentage will  equal 100% if  the Trigger  Date
occurs  during  the  five  years  beginning  on  the  first  Distribution  Date.
Thereafter, the Class A-4 Prepayment Percentage will, except as described below,
be subject to gradual  reduction as described in  the following paragraph.  This
disproportionate  allocation  of  certain  unscheduled  payments  in  respect of
principal after  the Trigger  Date  will have  the  effect of  accelerating  the
amortization  of the  Class A-4 Certificates  while, in the  absence of Realized
Losses, increasing the interest in the  Pool Principal Balance evidenced by  the
Subordinated   Certificates.   Increasing   the  respective   interest   of  the
Subordinated Certificates  relative  to  that  the  Class  A-4  Certificates  is
intended  to  preserve the  availability of  the  subordination provided  by the
Subordinated Certificates to the Class A-4 Certificates.
 
     If the Trigger Date occurs on or  after the fifth anniversary of the  first
Distribution  Date, the Class A-4 Prepayment  Percentage will be as follows; for
any Distribution Date  in the first  year thereafter, the  Class A-4  Percentage
plus  70% of  the Subordinated  Percentage for  such Distribution  Date, for any
Distribution Date in the second year  thereafter, the Class A-4 Percentage  plus
60%  of  the  Subordinated  Percentage  for  such  Distribution  Date;  for  any
Distribution Date in the  third year thereafter, the  Class A-4 Percentage  plus
40%  of  the  Subordinated  Percentage  for  such  Distribution  Date;  for  any
Distribution Date in the fourth year  thereafter, the Class A-4 Percentage  plus
20%  of  the Subordinated  Percentage for  such Distribution  Date; and  for any
Distribution Date thereafter,  the Class  A-4 Percentage  for such  Distribution
Date  (unless on any Distribution Date  the Subordinated Percentage is less than
the initial  Subordinated Percentage,  in which  case the  Class A-4  Prepayment
Percentage   for   such  Distribution   Date  will   once  again   equal  100%).
Notwithstanding  the  foregoing,  no  decrease  in  the  Class  A-4   Prepayment
Percentage  will  occur after  the Trigger  Date  unless both  of the  Step Down
Conditions (as defined above) are satisfied.
 
     If on any Distribution  Date following the Trigger  Date the allocation  to
the  Class  A-4  Certificates  would  reduce  the  aggregate  outstanding  Class
Certificate Balance of the Class  A-4 Certificates below zero, the  distribution
to  the Class A-4  Certificates of the  Class A-4 Prepayment  Percentage of such
amounts for such Distribution Date will  be limited to the percentage  necessary
to reduce the Class Certificate Balance of the Class A-4 Certificates to zero.
 
     Subordinated  Principal Distribution Amount. On  each Distribution Date, to
the extent of Available Funds therefor, the Non-PO Formula Principal Amount,  up
to  the  amount  of  the Subordinated  Principal  Distribution  Amount  for such
Distribution  Date,  will  be  distributed  as  principal  of  the  Subordinated
Certificates.   Except  as  provided  in  the  next  paragraph,  each  Class  of
Subordinated Certificates will be entitled to receive its pro rata share of  the
Subordinated  Principal  Distribution  Amount  (based  on  its  respective Class
Certificate Balance), in each  case to the extent  of the amount available  from
Available Funds for distribution of principal. Distributions of principal of the
Subordinated   Certificates  will  be  made   sequentially  to  the  Classes  of
Subordinated Certificates in  the order of  their numerical Class  designations,
beginning  with the Class M Certificates, until the respective Class Certificate
Balances thereof are reduced to zero.
 
     With respect  to  each  Class  of  Subordinated  Certificates,  if  on  any
Distribution Date the sum of the related Class Subordination Percentages of such
Class  and all Classes of Subordinated  Certificates which have higher numerical
Class designations than such Class (the 'Applicable Credit Support  Percentage')
is less than the Applicable Credit Support Percentage for such Class on the date
of  issuance  of  the  Certificates  (the  'Original  Applicable  Credit Support
Percentage'), no  distribution of  partial principal  prepayments and  principal
prepayments  in full will be made to any such Classes (the 'Restricted Classes')
and the amount  of partial  principal prepayments and  principal prepayments  in
full  otherwise distributable to the Restricted  Classes will be allocated among
the remaining Classes of Subordinated  Certificates, pro rata, based upon  their
respective  Class Certificate Balances, and  distributed in the sequential order
described above.
 
     The Class Subordination  Percentage with respect  to any Distribution  Date
and  each Class of Subordinated Certificates, will equal the fraction (expressed
as a percentage) the numerator of which is the Class Certificate Balance of such
Class of Subordinated Certificates immediately  prior to such Distribution  Date
and the
 
                                      S-26
 
<PAGE>

<PAGE>
denominator  of which is the aggregate of  the Class Certificate Balances of all
Classes of Certificates immediately prior to such Distribution Date.
 
     The approximate  Original Applicable  Credit  Support Percentages  for  the
Subordinated  Certificates  on  the date  of  issuance of  the  Certificates are
expected to be as follows:
 
<TABLE>
<S>                                                                                <C>
Class M.........................................................................    4.00%
Class B-1.......................................................................    2.30%
Class B-2.......................................................................    1.50%
Class B-3.......................................................................    0.90%
Class B-4.......................................................................    0.60%
Class B-5.......................................................................    0.30%
</TABLE>
 
     For Purposes of  calculating the Applicable  Credit Support Percentages  of
the Subordinated Certificates, the Class M Certificates will be deemed to have a
lower  numerical  Class  Designation  than  each  other  Class  of  Subordinated
Certificates.
 
     The Subordinated Principal  Distribution Amount for  any Distribution  Date
will  equal (A)  the sum  of (i) the  Subordinated Percentage  of the applicable
Non-PO Percentage of  all amounts described  in clauses (a)  through (d) of  the
definition of 'Non-PO Formula Principal Amount' for such Distribution Date, (ii)
with respect to each Mortgage Loan that became a Liquidated Mortgage Loan during
the calendar month preceding the month of such Distribution Date, the applicable
Non-PO  Percentage of the  Liquidation Proceeds allocable  to principal received
with respect to such Mortgage Loan,  after application of such amounts  pursuant
to  clause (ii)  of the definition  of Senior Principal  Distribution Amount and
pursuant to clause (ii)  of the definition of  Class A-4 Principal  Distribution
Amount, up to the Subordinated Percentage of the applicable Non-PO Percentage of
the  Stated Principal Balance  of such Mortgage Loan  and (iii) the Subordinated
Prepayment Percentage  of  the  applicable  Non-PO  Percentage  of  the  amounts
described  in clause (f) of the  definition of 'Non-PO Formula Principal Amount'
for such Distribution Date reduced by (B) the amount of any payments in  respect
of Class PO Deferred Amounts on the related Distribution Date.
 
     Residual  Certificates. The Class A-R  Certificates will remain outstanding
for so long as  the Trust Fund  shall exist, whether or  not they are  receiving
current  distributions of principal or interest. In addition to distributions of
interest and  principal  as described  above,  on each  Distribution  Date,  the
holders  of the Class A-R Certificates will be entitled to receive any Available
Funds  remaining  after  payment  of  interest  and  principal  on  the   Senior
Certificates  and Class  PO Deferred  Amounts on  the Class  PO Certificates and
interest and principal on the Subordinated Certificates, as described above.  It
is  not anticipated that there will be any significant amounts remaining for any
such distribution.
 
     Class  PO  Principal  Distribution  Amount.  On  each  Distribution   Date,
distributions  of principal  of the  Class PO  Certificates will  be made  in an
amount (the 'Class PO Principal Distribution Amount') equal to the lesser of (x)
the PO Formula Principal Amount for  such Distribution Date and (y) the  product
of  (i) Available Funds remaining after distribution or accretion of interest on
the Senior Certificates and (ii)  a fraction, the numerator  of which is the  PO
Formula  Principal Amount  and the  denominator of  which is  the sum  of the PO
Formula Principal Amount, the Senior Principal Distribution Amount and the Class
A-4 Principal Distribution Amount.
 
     If the Class  PO Principal Distribution  Amount on a  Distribution Date  is
calculated  as provided in clause (y)  above, principal distributions to holders
of the Senior Certificates (other than the Class A-4 and Class PO  Certificates)
will be in an amount equal to the product of (i) Available Funds remaining after
distribution  or accretion  of interest  on the  Senior Certificates  and (ii) a
fraction, the numerator of which is the Senior Principal Distribution Amount and
the denominator of which is the sum of the Senior Principal Distribution Amount,
the PO Formula Principal Amount and the Class A-4 Principal Distribution Amount.
 
     If the Class  PO Principal Distribution  Amount on a  Distribution Date  is
calculated  as provided in clause (y)  above, principal distributions to holders
of the Class A-4 Certificates will be in  an amount equal to the product of  (i)
Available  Funds remaining  after distribution or  accretion of  interest on the
Senior Certificates and (ii) a fraction, the numerator of which is the Class A-4
Principal Distribution Amount and the denominator of which is the sum of the  PO
Formula Principal Amount, the Senior Principal Distribution Amount and the Class
A-4 Principal Distribution Amount.
 
     The  PO Formula Principal  Amount for any Distribution  Date will equal the
sum of the applicable PO Percentage of (a) all monthly payments of principal due
on   each    Mortgage   Loan    on    the   related    Due   Date,    (b)    the
 
                                      S-27
 
<PAGE>

<PAGE>
principal  portion  of  the  purchase  price  of  each  Mortgage  Loan  that was
repurchased by the Seller or another person pursuant to the Agreement as of such
Distribution Date, (c) the Substitution Adjustment Amount in connection with any
Deleted Mortgage Loan received with respect  to such Distribution Date, (d)  any
Insurance  Proceeds or Liquidation Proceeds allocable to recoveries of principal
of Mortgage Loans that are not yet Liquidated Mortgage Loans received during the
calendar month preceding the month of  such Distribution Date, (e) with  respect
to each Mortgage Loan that became a Liquidated Mortgage Loan during the calendar
month  preceding the month of such  Distribution Date, the amount of Liquidation
Proceeds allocable to principal received with respect to such Mortgage Loan  and
(f)  all partial and full principal prepayments by borrowers received during the
related Prepayment Period; provided, however, that if a Bankruptcy Loss that  is
an Excess Loss is sustained with respect to a Discount Mortgage Loan that is not
a  Liquidated Mortgage Loan, the PO Formula  Principal Amount will be reduced on
the related Distribution Date by the  applicable PO Percentage of the  principal
portion of such Bankruptcy Loss.
 
ALLOCATION OF LOSSES
 
     On  each Distribution  Date, the applicable  PO Percentage  of any Realized
Loss, including any Excess Loss, on  a Discount Mortgage Loan will be  allocated
to  the Class  PO Certificates  until the  Class Certificate  Balance thereof is
reduced to zero.  The amount of  any such  Realized Loss, other  than an  Excess
Loss,  allocated on or prior to the Senior Credit Support Depletion Date will be
treated as a Class PO Deferred Amount. To the extent funds are available on such
Distribution Date or  on any future  Distribution Date from  amounts that  would
otherwise  be allocable to the Subordinated Principal Distribution Amount, Class
PO Deferred  Amounts  will  be  paid  on the  Class  PO  Certificates  prior  to
distributions of principal on the Subordinated Certificates. Any distribution of
Available  Funds in respect of unpaid Class PO Deferred Amounts will not further
reduce the Class Certificate Balance of the Class PO Certificates. The Class  PO
Deferred  Amounts will not  bear interest. The Class  Certificate Balance of the
Class of Subordinated Certificates then  outstanding with the highest  numerical
Class  designation will be reduced  by the amount of  any payments in respect of
Class PO Deferred Amounts.  After the Senior Credit  Support Depletion Date,  no
new Class PO Deferred Amounts will be created.
 
     For  purposes of  allocating losses  to the  Subordinated Certificates, the
Class M Certificates will be deemed to have a lower numerical Class  designation
than each other Class of Subordinated Certificates.
 
     On each Distribution Date, the applicable Non-PO Percentage of any Realized
Loss,  other than any Excess  Loss, will be allocated  first to the Subordinated
Certificates, in  the  reverse  order  of  their  numerical  Class  designations
(beginning with the Class of Subordinated Certificates then outstanding with the
highest  numerical Class designation), in each  case until the Class Certificate
Balance of the respective  Class of Certificates has  been reduced to zero,  and
then to the Senior Certificates (other than the Notional Amount Certificates and
the  Class  PO  Certificates)  pro  rata,  based  upon  their  respective  Class
Certificate Balances or, in the case  of either Accrual Component, on the  basis
of the lesser of its Component Balance and its initial Component Balance.
 
     On  each  Distribution Date,  the  applicable Non-PO  Percentage  of Excess
Losses will  be allocated  pro rata  among the  Classes of  Senior  Certificates
(other  than the Notional Amount Certificates and the Class PO Certificates) and
the Subordinated  Certificates based  upon  their respective  Class  Certificate
Balances  or, in  the case  of either  Accrual Components,  on the  basis of the
lesser of its Component Balance and its initial Component Balance.
 
     Any Realized Loss, including  any Excess Loss, allocable  to the Class  A-3
Certificates  will be  covered by  the Policy.  See 'Credit  Enchancement -- The
Financial Guaranty Insurance Policy' herein.
 
     Because principal distributions are paid to certain Classes of Certificates
(other than the  Class PO  Certificates) before other  Classes of  Certificates,
holders of such Certificates that are entitled to receive principal later bear a
greater  risk  of being  allocated Realized  Losses on  the Mortgage  Loans than
holders of Classes that are entitled to receive principal earlier.
 
     In general, a 'Realized Loss' means, with respect to a Liquidated  Mortgage
Loan, the amount by which the remaining unpaid principal balance of the Mortgage
Loan exceeds the amount of Liquidation Proceeds applied to the principal balance
of  the related Mortgage Loan. 'Excess Losses'  are (i) Special Hazard Losses in
excess of the  Special Hazard Loss  Coverage Amount, (ii)  Bankruptcy Losses  in
excess  of the Bankruptcy Loss Coverage Amount  and (iii) Fraud Losses in excess
of the  Fraud Loss  Coverage Amount.  'Bankruptcy Losses'  are losses  that  are
incurred  as  a  result of  Debt  Service Reductions  and  Deficient Valuations.
'Special Hazard
 
                                      S-28
 
<PAGE>

<PAGE>
Losses' are Realized Losses in respect of Special Hazard Mortgage Loans.  'Fraud
Losses'  are  losses sustained  on a  Liquidated  Mortgage Loan  by reason  of a
default  arising  from  fraud,  dishonesty  or  misrepresentation.  See  'Credit
Enhancement -- Subordination of Certain Classes' herein.
 
     A  'Liquidated Mortgage Loan' is a defaulted  Mortgage Loan as to which the
Master Servicer has  determined that all  recoverable liquidation and  insurance
proceeds  have been received.  A 'Special Hazard Mortgage  Loan' is a Liquidated
Mortgage Loan as to which the ability to recover the full amount due  thereunder
was  substantially impaired  by a  hazard not  insured against  under a standard
hazard insurance policy of  the type described in  the Prospectus under  'Credit
Enhancement    --    Special   Hazard    Insurance   Policies.'    See   'Credit
Enhancement -- Subordination of Certain Classes' herein.
 
STRUCTURING ASSUMPTIONS
 
     Unless  otherwise  specified,  the  information  in  the  tables  in   this
Prospectus  Supplement has been  prepared on the basis  of the following assumed
characteristics of the Mortgage Loans  and the following additional  assumptions
(collectively, the 'Structuring Assumptions'): (i) the Mortgage Pool consists of
two Mortgage Loans with the following characteristics:
 
<TABLE>
<CAPTION>
                                                          ORIGINAL TERM     REMAINING TERM
                                             NET           TO MATURITY       TO MATURITY
PRINCIPAL BALANCE     MORTGAGE RATE     MORTGAGE RATE      (IN MONTHS)       (IN MONTHS)
- -----------------     -------------     -------------     -------------     --------------
<S>                   <C>               <C>               <C>               <C>
 $ 198,007,337.89      8.1697237351%     7.8728588423%         359                358
 $  53,659,041.25      7.6865328899%     7.4021930317%         359                358
</TABLE>
 
(ii)  the Mortgage  Loans prepay at  the specified constant  percentages of SPA,
(iii) no defaults in the payment by  Mortgagors of principal of and interest  on
the  Mortgage Loans  are experienced,  (iv) scheduled  payments on  the Mortgage
Loans are received on  the first day  of each month  commencing in the  calendar
month  following the  Closing Date  and are computed  prior to  giving effect to
prepayments received on  the last day  of the prior  month, (v) prepayments  are
allocated  as described  herein without  giving effect  to loss  and delinquency
tests, (vi)  there are  no  Net Interest  Shortfalls and  prepayments  represent
prepayments  in full of individual  Mortgage Loans and are  received on the last
day of each month, commencing in the  calendar month of the Closing Date,  (vii)
the  scheduled monthly payment  for each Mortgage Loan  has been calculated such
that each Mortgage Loan will amortize in amounts sufficient to repay the current
balance of such  Mortgage Loan  by its  respective remaining  term to  maturity,
(viii)  the initial Class Certificate Balance or Notional Amount, as applicable,
of each Class of Certificates is as set forth on the cover page hereof and under
'Summary of Terms  -- Certificates  other than the  Offered Certificates,'  (ix)
interest  accrues  on  each  interest  bearing  Class  of  Certificates  at  the
applicable interest  rate set  forth or  described on  the cover  hereof and  as
described  herein, (x) distributions in respect of the Certificates are received
in cash on the 25th day of each month commencing in the calendar month following
the Closing Date, (xi) the scheduled balances for the related Classes are as set
forth in the Principal Balance Schedules, (xii) the closing date of the sale  of
the   Offered   Certificates  is   the  date   set   forth  under   'Summary  of
Terms --  Closing Date,'  (xiii) the  Seller is  not required  to repurchase  or
substitute  for any Mortgage  Loan, (xiv) the Master  Servicer does not exercise
the option to repurchase the Mortgage Loans described herein under ' -- Optional
Purchase of Defaulted Loans' and ' -- Optional Termination' and (xv) no Class of
Certificates becomes a Restricted  Class. While it is  assumed that each of  the
Mortgage Loans prepays at the specified constant percentages of SPA, this is not
likely   to  be  the  case.  Moreover,   discrepancies  may  exist  between  the
characteristics of the  actual Mortgage  Loans which  will be  delivered to  the
Trustee  and characteristics of the Mortgage  Loans used in preparing the tables
herein.
 
     Prepayments  of  mortgage  loans  commonly  are  measured  relative  to   a
prepayment  standard or model.  The model used in  this Prospectus Supplement is
the Standard Prepayment Assumption ('SPA'), which represents an assumed rate  of
prepayment each month of the then outstanding principal balance of a pool of new
mortgage  loans. SPA does not  purport to be either  a historical description of
the prepayment experience of any pool of  mortgage loans or a prediction of  the
anticipated  rate of  prepayment of  any pool  of mortgage  loans, including the
Mortgage Loans. 100% SPA assumes prepayment rates of 0.2% per annum of the  then
unpaid  principal balance of such  pool of mortgage loans  in the first month of
the life of such mortgage loans and  an additional 0.2% per annum in each  month
thereafter  (for example,  0.4% per  annum in the  second month)  until the 30th
month. Beginning in the 30th month and in each month thereafter during the  life
of  such mortgage loans, 100%  SPA assumes a constant  prepayment rate of 6% per
annum. Multiples may be calculated from this prepayment
 
                                      S-29
 
<PAGE>

<PAGE>
rate sequence. For example, 235% SPA assumes prepayment rates will be 0.47%  per
annum  in month one,  0.94% per annum in  month two, and  increasing by 0.47% in
each succeeding month until reaching a rate  of 14.1% per annum in month 30  and
remaining constant at 14.1% per annum thereafter. 0% SPA assumes no prepayments.
There  is no  assurance that prepayments  will occur at  any SPA rate  or at any
other constant rate.
 
OPTIONAL PURCHASE OF DEFAULTED LOANS
 
     The Master Servicer may,  at its option, purchase  from the Trust Fund  any
Mortgage  Loan  which is  delinquent in  payment by  91 days  or more.  Any such
purchase shall be at a  price equal to 100% of  the Stated Principal Balance  of
such Mortgage Loan plus accrued interest thereon at the applicable Mortgage Rate
from  the date through which interest was  last paid by the related mortgagor or
advanced (and not reimbursed) to the first day of the month in which such amount
is to be distributed.
 
OPTIONAL TERMINATION
 
     The Master  Servicer  will  have  the right  to  repurchase  all  remaining
Mortgage  Loans and REO Properties in the Mortgage Pool and thereby effect early
retirement of the Certificates,  subject to the Pool  Principal Balance of  such
Mortgage  Loans and REO Properties at the time of repurchase being less than 10%
of the Cut-off  Date Pool Principal  Balance. In the  event the Master  Servicer
exercises  such  option, the  purchase price  distributed  with respect  to each
Certificate will be  100% of  its then  outstanding principal  balance plus  any
Class  PO Deferred Amounts in the case of  the Class PO Certificates and, in the
case of an interest bearing Certificate, any unpaid accrued interest thereon  at
the  applicable Pass-Through Rate (in each case subject to reduction as provided
in the Agreement if the purchase price  is based in part on the appraised  value
of any REO Properties and such appraised value is less than the Stated Principal
Balance  of the  related Mortgage Loans).  Distributions on  the Certificates in
respect of  any such  optional termination  will  first be  paid to  the  Senior
Certificates  and then to  the Subordinated Certificates.  The proceeds from any
such distribution may not be sufficient  to distribute the full amount to  which
each Class of Certificates is entitled if the purchase price is based in part on
the  appraised value of any  REO Property and such  appraised value is less than
the Stated Principal Balance of the related Mortgage Loan.
 
THE TRUSTEE
 
     The Bank of New York will be the Trustee under the Agreement. The Depositor
and the Master Servicer may maintain other banking relationships in the ordinary
course of  business with  The Bank  of  New York.  Offered Certificates  may  be
surrendered  at the Corporate Trust Office of the Trustee located at 101 Barclay
Street, 12E, New York, New York 10286, Attention: Corporate Trust Administration
or at such other addresses as the Trustee may designate from time to time.
 
RESTRICTIONS ON TRANSFER OF THE CLASS A-R CERTIFICATES
 
     The Class A-R Certificates will be subject to the restrictions on  transfer
described    in   the    Prospectus   under   'Certain    Federal   Income   Tax
Consequences -- REMIC Certificates --  Tax-Related Restrictions on Transfers  of
Residual  Certificates -- Disqualified Organizations,' ' -- Noneconomic Residual
Interests' and ' --  Foreign Investors.' The Agreement  provides that the  Class
A-R  Certificates (in addition to certain other Classes of Certificates) may not
be acquired by an ERISA Plan. See 'ERISA Considerations' herein. Each Class  A-R
Certificate will contain a legend describing the foregoing restrictions.
 
                 YIELD, PREPAYMENT AND MATURITY CONSIDERATIONS
 
GENERAL
 
     The  effective yield to the holders of  the Certificates will be lower than
the yield otherwise produced by the applicable rate at which interest is  passed
through  to such  holders and  the purchase  price of  such Certificates because
monthly distributions will  not be payable  to such holders  until the 25th  day
(or, if such day is not a business day, the following business day) of the month
following the month in which interest accrues on the Mortgage Loans (without any
additional  distribution  of interest  or earnings  thereon  in respect  of such
delay).
 
     Delinquencies on the Mortgage Loans which are not advanced by or on  behalf
of  the Master Servicer (because amounts, if advanced, would be nonrecoverable),
will adversely affect the yield on the Certificates. Because of the priority  of
distributions,  shortfalls resulting from delinquencies  not so advanced will be
borne
 
                                      S-30
 
<PAGE>

<PAGE>
first by the Subordinated Certificates, in the reverse order of their  numerical
Class designations, and then by the Senior Certificates. If, as a result of such
shortfalls,  the aggregate of  the Class Certificate Balances  of all Classes of
Certificates exceeds the Pool Principal  Balance, the Class Certificate  Balance
of  the Class  of Subordinated  Certificates then  outstanding with  the highest
numerical Class designation will be reduced by the amount of such excess.
 
     Net Interest Shortfalls which are not covered by the Policy will  adversely
affect  the yield on the Class A-3 Certificates and Net Interest Shortfalls will
adversely affect the yields  on the other Classes  of Offered Certificates.  Any
Net  Interest Shortfall allocated  to the Class A-7-1  or Class A-7-2 Components
will reduce  the  Class  A-7-1  Component Accrual  Amount  or  the  Class  A-7-2
Component  Accrual Amount,  respectively, thereby  reducing the  amount of funds
available for distribution of  principal to the  Classes of Senior  Certificates
entitled  to  receive  such  distributions.  In  addition,  although  all losses
initially will be borne by the  Subordinated Certificates, in the reverse  order
of  their numerical Class designations (either directly or through distributions
in respect of Class  PO Deferred Amounts on  the Class PO Certificates),  Excess
Losses  will be borne  by all Classes  of Certificates (other  than the Notional
Amount Certificates)  on a  pro  rata basis.  Moreover, since  the  Subordinated
Principal  Distribution Amount for each Distribution Date will be reduced by the
amount of any  distributions on such  Distribution Date in  respect of Class  PO
Deferred   Amounts,  the  amount   distributable  as  principal   on  each  such
Distribution Date to each Class of Subordinated Certificates then entitled to  a
distribution of principal will be less than it otherwise would be in the absence
of  such  Class PO  Deferred Amounts.  As a  result, the  yields on  the Offered
Certificates will depend on  the rate and timing  of Realized Losses,  including
Excess  Losses. Excess Losses could occur at a  time when one or more Classes of
Subordinated Certificates  are  still  outstanding and  otherwise  available  to
absorb other types of Realized Losses.
 
     Notwithstanding the foregoing, any Realized Loss allocated to the Class A-3
Certificates   will  be  covered   by  the  Policy.   See  'Description  of  the
Certificates --  Interest' and  'Credit Enhancement  -- The  Financial  Guaranty
Insurance Policy.'
 
     For   purposes  of   allocating  losses   and  shortfalls   resulting  from
delinquencies to the Subordinated Certificates, the Class M Certificates will be
deemed to have  a lower  numerical Class designation  than each  other Class  of
Subordinated Certificates.
 
PREPAYMENT CONSIDERATIONS AND RISKS
 
     The  rate of principal payments on  the Offered Certificates, the aggregate
amount of distributions on the Offered Certificates and the yield to maturity of
the Offered Certificates will be related to  the rate and timing of payments  of
principal  on the Mortgage Loans. The rate of principal payments on the Mortgage
Loans will in  turn be affected  by the amortization  schedules of the  Mortgage
Loans  and  by the  rate of  principal prepayments  (including for  this purpose
prepayments resulting from refinancing, liquidations  of the Mortgage Loans  due
to  defaults, casualties, condemnations and repurchases  by the Seller or Master
Servicer). The  Mortgage Loans  may be  prepaid by  the Mortgagors  at any  time
without   a  prepayment  penalty.   The  Mortgage  Loans   are  subject  to  the
'due-on-sale' provisions included therein. See 'The Mortgage Pool' herein.
 
     Prepayments, liquidations and  purchases of the  Mortgage Loans  (including
any  optional purchase by the  Master Servicer of a  defaulted Mortgage Loan and
any optional repurchase of the remaining  Mortgage Loans in connection with  the
termination  of the Trust Fund, in each case as described herein) will result in
distributions on  the  Offered Certificates  of  principal amounts  which  would
otherwise  be distributed over the remaining  terms of the Mortgage Loans. Since
the rate of payment  of principal of  the Mortgage Loans  will depend on  future
events  and a variety of factors,  no assurance can be given  as to such rate or
the rate of principal prepayments. The extent to which the yield to maturity  of
a  Class of Offered Certificates may vary from the anticipated yield will depend
upon the degree to which such Offered Certificate is purchased at a discount  or
premium,  and the degree to which the timing of payments thereon is sensitive to
prepayments, liquidations  and  purchases of  the  Mortgage Loans.  Further,  an
investor  should  consider the  risk that,  in  the case  of the  Principal Only
Certificates and any other Offered Certificate purchased at a discount, a slower
than anticipated  rate  of principal  payments  (including prepayments)  on  the
Mortgage  Loans could result in  an actual yield to  such investor that is lower
than the anticipated yield  and, in the case  of the Interest Only  Certificates
and  any  other  Offered  Certificate  purchased at  a  premium,  a  faster than
anticipated rate of principal payments could  result in an actual yield to  such
investor  that is  lower than the  anticipated yield. Investors  in the Interest
Only Certificates should carefully
 
                                      S-31
 
<PAGE>

<PAGE>
consider the risk that a rapid rate of principal payments on the Mortgage  Loans
could  result  in  the  failure  of  such  investors  to  recover  their initial
investments.
 
     The rate of principal payments (including prepayments) on pools of mortgage
loans may vary significantly  over time and  may be influenced  by a variety  of
economic, geographic, social and other factors, including changes in mortgagors'
housing  needs,  job  transfers,  unemployment, mortgagors'  net  equity  in the
mortgaged  properties  and  servicing  decisions.  In  addition,   Countrywide's
Streamlined  Documentation Program  may affect  the rate  of prepayments  on the
Mortgage  Loans.  In  general,  if  prevailing  interest  rates  were  to   fall
significantly below the Mortgage Rates on the Mortgage Loans, the Mortgage Loans
could  be subject to  higher prepayment rates than  if prevailing interest rates
were to remain at or above the Mortgage Rates on the Mortgage Loans. Conversely,
if prevailing interest rates were to rise significantly, the rate of prepayments
on the Mortgage Loans would generally be expected to decrease. No assurances can
be given  as to  the rate  of prepayments  on the  Mortgage Loans  in stable  or
changing interest rate environments.
 
     As  described herein under 'Description  of the Certificates -- Principal,'
the Senior  Prepayment Percentage  of the  applicable Non-PO  Percentage of  all
principal  prepayments will  be initially distributed  to the  Classes of Senior
Certificates (other than the Class A-4 and Class PO Certificates) then  entitled
to  receive principal  prepayment distributions.  This may  result in  all (or a
disproportionate percentage) of such principal prepayments being distributed  to
holders  of such Classes of Senior Certificates and none (or less than their pro
rata share) of such  principal prepayments being distributed  to holders of  the
Class  A-4 Certificates and the Subordinated  Certificates during the periods of
time described in the definition of 'Senior Prepayment Percentage.'
 
     Except upon the occurrence of the Trigger Date, the Class A-4  Certificates
will  be entitled to  receive distributions in  respect of principal prepayments
only if, as and to the extent that the Subordinated Certificates are entitled to
receive such distributions.  Thus, the weighted  average life of  the Class  A-4
Certificates  will be longer than would be the case if such Certificates were to
receive such distributions with the other Classes of Senior Certificates.
 
     The timing of changes in the rate of prepayments on the Mortgage Loans  may
significantly affect an investor's actual yield to maturity, even if the average
rate  of principal  payments is  consistent with  an investor's  expectation. In
general, the  earlier a  prepayment  of principal  on  the Mortgage  Loans,  the
greater  the  effect  on an  investor's  yield  to maturity.  The  effect  on an
investor's yield as a  result of principal payments  occurring at a rate  higher
(or  lower)  than  the  rate  anticipated  by  the  investor  during  the period
immediately following the issuance of the Offered Certificates may not be offset
by a subsequent like decrease (or increase) in the rate of principal payments.
 
     The tables below  indicate the  sensitivity of the  pre-tax corporate  bond
equivalent  yields to  maturity of  certain Classes  of Certificates  to various
constant percentages of SPA. The yields set forth in the tables were  calculated
by  determining the  monthly discount  rates that,  when applied  to the assumed
streams of cash  flows to  be paid on  the applicable  Classes of  Certificates,
would  cause the discounted present value of  such assumed streams of cash flows
to equal the assumed  aggregate purchase prices of  such Classes and  converting
such  monthly rates to corporate bond equivalent rates. Such calculations do not
take into  account variations  that may  occur in  the interest  rates at  which
investors  may be able  to reinvest funds  received by them  as distributions on
such Certificates and consequently do not  purport to reflect the return on  any
investment  in any  such Class of  Certificate when such  reinvestment rates are
considered.
 
SENSITIVITY OF THE CLASS X CERTIFICATES
 
     AS INDICATED IN  THE TABLE BELOW,  THE YIELD  TO INVESTORS IN  THE CLASS  X
CERTIFICATES  WILL BE  SENSITIVE TO  THE RATE  OF PRINCIPAL  PAYMENTS (INCLUDING
PREPAYMENTS) OF THE  NON-DISCOUNT MORTGAGE LOANS  (PARTICULARLY THOSE WITH  HIGH
NET MORTGAGE RATES), WHICH GENERALLY CAN BE PREPAID AT ANY TIME. ON THE BASIS OF
THE  ASSUMPTIONS  DESCRIBED  BELOW,  THE  YIELD  TO  MATURITY  ON  THE  CLASS  X
CERTIFICATES WOULD  BE  APPROXIMATELY 0%  IF  PREPAYMENTS  WERE TO  OCCUR  AT  A
CONSTANT  RATE OF APPROXIMATELY 516%  SPA. IF THE ACTUAL  PREPAYMENT RATE OF THE
NON-DISCOUNT MORTGAGE LOANS WERE TO EXCEED THE FOREGOING LEVEL FOR AS LITTLE  AS
ONE  MONTH WHILE EQUALING SUCH LEVEL FOR  THE REMAINING MONTHS, THE INVESTORS IN
THE CLASS X CERTIFICATES WOULD NOT FULLY RECOUP THEIR INITIAL INVESTMENTS.
 
     As described above under 'Description of the Certificates -- General,'  the
Pass-Through  Rate of the  Class X Certificates  in effect from  time to time is
calculated by reference to the Net  Mortgage Rates of the Non-Discount  Mortgage
Loans.  The Non-Discount Mortgage Loans will have higher Net Mortgage Rates (and
higher
 
                                      S-32
 
<PAGE>

<PAGE>
Mortgage Rates) than the other Mortgage  Loans. In general, mortgage loans  with
higher  mortgage rates tend to  prepay at higher rates  than mortgage loans with
relatively lower mortgage rates in response to a given change in market interest
rates. As a result, the Non-Discount Mortgage Loans may prepay at higher  rates,
thereby  reducing  the Pass-Through  Rate  and Notional  Amount  of the  Class X
Certificates.
 
     The information set forth in the  following table has been prepared on  the
basis  of the  Structuring Assumptions and  on the assumption  that the purchase
price of the Class X Certificates (expressed as a percentage of initial Notional
Amount) is as follows:
 
<TABLE>
<CAPTION>
CLASS                               PRICE*
- --------------------------------   --------
<S>                                <C>
Class X.........................   1.366404%
</TABLE>
 
*  The price does not include accrued interest. Accrued interest has been  added
   to such price in calculating the yields set forth in the table below.
 
             SENSITIVITY OF THE CLASS X CERTIFICATES TO PREPAYMENTS
                          (PRE-TAX YIELDS TO MATURITY)
 
<TABLE>
<CAPTION>
                                                       SPA PREPAYMENT ASSUMPTION
                                            -----------------------------------------------
CLASS                                        0%        100%       235%       300%      450%
- -----------------------------------------   -----      -----      -----      ----      ----
<S>                                         <C>        <C>        <C>        <C>       <C>
Class X..................................   27.0%      21.9%      15.0%      11.6%     3.6%
</TABLE>
 
     It  is unlikely that the Non-Discount  Mortgage Loans will have the precise
characteristics described herein  or that the  Non-Discount Mortgage Loans  will
all  prepay at  the same  rate until  maturity or  that all  of the Non-Discount
Mortgage Loans  will prepay  at the  same rate  or time.  As a  result of  these
factors,  the pre-tax yields  on the Class  X Certificates are  likely to differ
from those shown in the table above, even if all of the Mortgage Loans prepay at
the indicated percentages  of SPA. No  representation is made  as to the  actual
rate  of principal  payments on the  Mortgage Loans  for any period  or over the
lives of  the  Class  X  Certificates  or  as  to  the  yield  on  the  Class  X
Certificates.  Investors must  make their  own decisions  as to  the appropriate
prepayment assumptions to be  used in deciding whether  to purchase the Class  X
Certificates.
 
SENSITIVITY OF THE PRINCIPAL ONLY CERTIFICATES
 
     THE  CLASS PO CERTIFICATES  WILL BE 'PRINCIPAL  ONLY' CERTIFICATES AND WILL
NOT BEAR INTEREST.  AS INDICATED IN  THE TABLE BELOW,  A LOWER THAN  ANTICIPATED
RATE  OF  PRINCIPAL PAYMENTS  (INCLUDING PREPAYMENTS)  ON THE  DISCOUNT MORTGAGE
LOANS WILL HAVE A  NEGATIVE EFFECT ON  THE YIELD TO  INVESTORS IN THE  PRINCIPAL
ONLY CERTIFICATES.
 
     As  described above under  'Description of the  Certificates -- Principal,'
the Class PO  Principal Distribution Amount  is calculated by  reference to  the
principal  payments (including prepayments) on  the Discount Mortgage Loans. The
Discount Mortgage Loans will have lower  Net Mortgage Rates (and lower  Mortgage
Rates)  than the  other Mortgage Loans.  In general, mortgage  loans with higher
mortgage rates  tend  to  prepay  at  higher  rates  than  mortgage  loans  with
relatively lower mortgage rates in response to a given change in market interest
rates.  As a  result, the  Discount Mortgage  Loans may  prepay at  lower rates,
thereby reducing the rate of payment of principal and the resulting yield of the
Class PO Certificates.
 
     The information set forth in the  following table has been prepared on  the
basis  of the Structuring  Assumptions and on the  assumption that the aggregate
purchase price of the Principal Only Certificates (expressed as a percentage  of
initial Class Certificate Balance) is as follows:
 
<TABLE>
<CAPTION>
CLASS                                 PRICE
- ----------------------------------   --------
<S>                                  <C>
Class PO..........................   45.86713%
</TABLE>
 
         SENSITIVITY OF THE PRINCIPAL ONLY CERTIFICATES TO PREPAYMENTS
                          (PRE-TAX YIELDS TO MATURITY)
 
<TABLE>
<CAPTION>
                                                      SPA PREPAYMENT ASSUMPTION
                                             --------------------------------------------
CLASS                                         0%      100%      235%      300%      450%
- ------------------------------------------   ----     -----     -----     -----     -----
<S>                                          <C>      <C>       <C>       <C>       <C>
Class PO..................................   4.2%      8.4%     15.0%     18.0%     24.5%
</TABLE>
 
                                      S-33
 
<PAGE>

<PAGE>
     It  is  unlikely that  the Discount  Mortgage Loans  will have  the precise
characteristics described herein or  that the Discount  Mortgage Loans will  all
prepay  at the same  rate until maturity  or that all  of such Discount Mortgage
Loans will prepay at the  same rate or time. As  a result of these factors,  the
pre-tax  yield on the Principal Only Certificates is likely to differ from those
shown in  the table  above, even  if all  of the  Mortgage Loans  prepay at  the
indicated percentages of SPA. No representation is made as to the actual rate of
principal  payments on the Mortgage Loans for any period or over the life of the
Principal  Only  Certificates  or  as  to  the  yield  on  the  Principal   Only
Certificates.  Investors must  make their  own decisions  as to  the appropriate
prepayment assumptions to be used in deciding whether to purchase the  Principal
Only Certificates.
 
ADDITIONAL INFORMATION
 
     The  Depositor intends  to file certain  additional yield  tables and other
computational  materials  with  respect  to  one  or  more  Classes  of  Offered
Certificates  with the Commission in a report on  Form 8-K to be dated April 25,
1997. Such tables and materials were prepared by one or more of the Underwriters
at the request of certain  prospective investors, based on assumptions  provided
by, and satisfying the special requirements of, such prospective investors. Such
tables  and  assumptions  may  be  based on  assumptions  that  differ  from the
Structuring Assumptions. Accordingly, such tables and other materials may not be
relevant  to  or  appropriate  for  investors  other  than  those   specifically
requesting them.
 
WEIGHTED AVERAGE LIVES OF THE OFFERED CERTIFICATES
 
     The  weighted average life  of an Offered Certificate  is determined by (a)
multiplying the amount of  the net reduction, if  any, of the Class  Certificate
Balance  of such Certificate  on each Distribution  Date by the  number of years
from the date of issuance to such Distribution Date, (b) summing the results and
(c) dividing the  sum by the  aggregate amount  of the net  reductions in  Class
Certificate Balance of such Certificate referred to in clause (a).
 
     For  a discussion of the  factors which may influence  the rate of payments
(including  prepayments)   of  the   Mortgage  Loans,   see  '   --   Prepayment
Considerations  and Risks' herein  and 'Yield and  Prepayment Considerations' in
the Prospectus.
 
     In general, the weighted average lives of the Offered Certificates will  be
shortened  if  the  level of  prepayments  of  principal of  the  Mortgage Loans
increases. However, the weighted average lives of the Offered Certificates  will
depend  upon a variety of other factors, including the timing of changes in such
rate of principal payments, the priority sequence of distributions of  principal
of  the Classes of Certificates and the distribution of principal of the Planned
Principal Classes  and the  Targeted Principal  Classes in  accordance with  the
Principal  Balance Schedules herein. In particular,  if the amount available for
distribution as principal of the Senior  Certificates (other than the Class  A-4
and  Class PO Certificates) on any Distribution Date exceeds the amount required
to reduce  the principal  balances  of the  Planned  Principal Classes  and  the
Targeted  Principal Classes then entitled to receive a distribution of principal
to their respective  scheduled balances as  set forth in  the Principal  Balance
Schedules,  such excess  principal will be  distributed to the  Support Class on
such Distribution Date. Conversely, if the amount available for distribution  of
principal  of the  Senior Certificates  (other than the  Class A-4  and Class PO
Certificates) on any Distribution  Date is less than  the amount so required  to
reduce  the Planned  Principal Classes and  the Targeted  Principal Classes then
entitled to receive a  distribution of principal  to their respective  scheduled
balances,  no  principal  will  be  distributed to  the  Support  Class  on such
Distribution Date. Accordingly, the rate  of principal payments on the  Mortgage
Loans  is expected to have a greater effect  on the weighted average life of the
Support Class  and, under  certain prepayment  scenarios, the  weighted  average
lives  of the Targeted Principal Classes, than  on the weighted average lives of
the Planned Principal Classes. See 'Description of the
Certificates -- Principal' herein.
 
     The interaction  of the  foregoing factors  may have  different effects  on
various Classes of Offered Certificates and the effects on any Class may vary at
different  times during the life of such Class. Accordingly, no assurance can be
given as to  the weighted  average life of  any Class  of Offered  Certificates.
Further,  to  the  extent  the  prices  of  the  Offered  Certificates represent
discounts or premiums to their  respective original Class Certificate  Balances,
variability   in  the  weighted  average  lives   of  such  Classes  of  Offered
Certificates will result in variability in  the related yields to maturity.  For
an  example  of  how  the  weighted average  lives  of  the  Classes  of Offered
Certificates may be  affected at various  constant percentages of  SPA, see  the
Decrement Tables below.
 
                                      S-34


<PAGE>

<PAGE>
DECREMENT TABLES
 
     The  following  tables  indicate  the  percentages  of  the  initial  Class
Certificate Balances or Notional Amount, as the  case may be, of the Classes  of
Offered  Certificates  (other  than  the Class  X  Certificates)  that  would be
outstanding after each of the dates shown at various constant percentages of SPA
and the corresponding weighted  average lives of such  Classes. The tables  have
been prepared on the basis of the Structuring Assumptions. It is not likely that
(i) the Mortgage Loans will have the precise characteristics described herein or
(ii)  all of  the Mortgage Loans  will prepay  at a constant  percentage of SPA.
Moreover, the diverse remaining  terms to maturity of  the Mortgage Loans  could
produce  slower or faster principal distributions  than indicated in the tables,
which have been prepared using the  specified constant percentages of SPA,  even
if  the remaining term to maturity of  the Mortgage Loans is consistent with the
remaining terms to maturity of the  Mortgage Loans specified in the  Structuring
Assumptions.
 
           PERCENT OF INITIAL CLASS CERTIFICATE BALANCES OUTSTANDING*
<TABLE>
<CAPTION>
                                         CLASS A-1
                          ----------------------------------------
  DISTRIBUTION DATE        0%      100%     235%     300%     450%
- ----------------------    ----     ----     ----     ----     ----
<S>                       <C>      <C>      <C>      <C>      <C>
Initial...............     100     100      100      100      100
April 1998............     100     100      100      100      100
April 1999............      96      75       75       75       75
April 2000............      90      27       27       27       27
April 2001............      84       0        0        0        0
April 2002............      77       0        0        0        0
April 2003............      70       0        0        0        0
April 2004............      61       0        0        0        0
April 2005............      53       0        0        0        0
April 2006............      43       0        0        0        0
April 2007............      33       0        0        0        0
April 2008............      21       0        0        0        0
April 2009............       9       0        0        0        0
April 2010............       0       0        0        0        0
April 2011............       0       0        0        0        0
April 2012............       0       0        0        0        0
April 2013............       0       0        0        0        0
April 2014............       0       0        0        0        0
April 2015............       0       0        0        0        0
April 2016............       0       0        0        0        0
April 2017............       0       0        0        0        0
April 2018............       0       0        0        0        0
April 2019............       0       0        0        0        0
April 2020............       0       0        0        0        0
April 2021............       0       0        0        0        0
April 2022............       0       0        0        0        0
April 2023............       0       0        0        0        0
April 2024............       0       0        0        0        0
April 2025............       0       0        0        0        0
April 2026............       0       0        0        0        0
April 2027............       0       0        0        0        0
Weighted Average Life
  (in years)**........     7.9     2.5      2.5      2.5      2.5
 
<CAPTION>
                                         CLASS A-2
                          ---------------------------------------
  DISTRIBUTION DATE        0%     100%     235%     300%     450%
- ---------------------     -----    ----     ----     ----     ----
<S>                       <C>    <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............     100    100      100      100      100
April 1999............     100    100      100      100      100
April 2000............     100    100      100      100      100
April 2001............     100     77       77       77       11
April 2002............     100     26       26       26        0
April 2003............     100      0        0        0        0
April 2004............     100      0        0        0        0
April 2005............     100      0        0        0        0
April 2006............     100      0        0        0        0
April 2007............     100      0        0        0        0
April 2008............     100      0        0        0        0
April 2009............     100      0        0        0        0
April 2010............      95      0        0        0        0
April 2011............      79      0        0        0        0
April 2012............      61      0        0        0        0
April 2013............      41      0        0        0        0
April 2014............      19      0        0        0        0
April 2015............       0      0        0        0        0
April 2016............       0      0        0        0        0
April 2017............       0      0        0        0        0
April 2018............       0      0        0        0        0
April 2019............       0      0        0        0        0
April 2020............       0      0        0        0        0
April 2021............       0      0        0        0        0
April 2022............       0      0        0        0        0
April 2023............       0      0        0        0        0
April 2024............       0      0        0        0        0
April 2025............       0      0        0        0        0
April 2026............       0      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    15.5    4.6      4.6      4.6      3.7
                      
<CAPTION>
                                         CLASS A-3
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- ---------------------     -----   ----     ----     ----     ----
<S>                       <C>    <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............     100    100      100      100      100
April 1999............     100    100      100      100      100
April 2000............     100    100      100      100      100
April 2001............     100    100      100      100      100
April 2002............     100    100      100      100      100
April 2003............     100    100      100      100        3
April 2004............     100    100      100      100        0
April 2005............     100    100      100      100        0
April 2006............     100    100      100      100        0
April 2007............     100    100      100       82        0
April 2008............     100    100      100       67        0
April 2009............     100    100      100       55        0
April 2010............     100    100      100       44        0
April 2011............     100    100      100       35        0
April 2012............     100    100       86       28        0
April 2013............     100    100       72       22        0
April 2014............     100    100       61       17        0
April 2015............     100    100       50       13        0
April 2016............     100    100       41       10        0
April 2017............     100    100       33        8        0
April 2018............     100    100       26        6        0
April 2019............     100    100       21        5        0
April 2020............     100    100       16        3        0
April 2021............     100    100       12        2        0
April 2022............     100    100        9        2        0
April 2023............     100     89        6        1        0
April 2024............     100     66        4        1        0
April 2025............     100     42        2        0        0
April 2026............     100     19        1        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    29.5    27.7     18.9     13.5     5.6
</TABLE>              
 
- ------------------------------
 * Rounded to the nearest whole percentage.
 
** Determined  as  specified  under  'Weighted  Average  Lives  of  the  Offered
   Certificates' herein.
 
                                      S-35
 
<PAGE>

<PAGE>
     PERCENT OF INITIAL CLASS CERTIFICATE BALANCES OUTSTANDING* (CONTINUED)
<TABLE>
<CAPTION>
                                         CLASS A-4
                          ----------------------------------------
  DISTRIBUTION DATE        0%      100%     235%     300%     450%
- ----------------------    ----     ----     ----     ----     ----
 
<S>                       <C>      <C>      <C>      <C>      <C>
Initial...............     100     100      100      100      100
April 1998............      99      99       99       99       99
April 1999............      98      98       98       98       98
April 2000............      97      97       97       97       97
April 2001............      96      96       96       96       96
April 2002............      95      95       95       95       95
April 2003............      94      92       90       88       85
April 2004............      92      89       83       81       59
April 2005............      91      84       75       70       41
April 2006............      89      79       65       59       29
April 2007............      88      72       55       47       21
April 2008............      86      67       46       38       15
April 2009............      84      61       39       30       11
April 2010............      82      56       32       24        8
April 2011............      79      51       27       19        5
April 2012............      77      46       22       15        4
April 2013............      74      42       19       12        3
April 2014............      71      38       15       10        2
April 2015............      68      34       13        7        1
April 2016............      64      30       10        6        1
April 2017............      60      27        8        4        1
April 2018............      56      23        7        3        0
April 2019............      51      20        5        3        0
April 2020............      46      17        4        2        0
April 2021............      41      14        3        1        0
April 2022............      35      12        2        1        0
April 2023............      29       9        2        1        0
April 2024............      22       6        1        0        0
April 2025............      15       4        1        0        0
April 2026............       7       2        0        0        0
April 2027............       0       0        0        0        0
Weighted Average Life
  (in years)**........    20.4     15.1     11.6     10.6     8.2
 
<CAPTION>
                                         CLASS A-5
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- ----------------------    ----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............     100    100      100      100      100
April 1999............      99     90       90       90       90
April 2000............      96     72       72       72       72
April 2001............      94     55       55       55       30
April 2002............      91     38       38       38        6
April 2003............      89     24       24       24        0
April 2004............      85     14       14       14        0
April 2005............      82      8        8        8        0
April 2006............      78      4        4        4        0
April 2007............      75      2        2        2        0
April 2008............      70      1        1        1        0
April 2009............      66      0        0        0        0
April 2010............      61      0        0        0        0
April 2011............      55      0        0        0        0
April 2012............      49      0        0        0        0
April 2013............      43      0        0        0        0
April 2014............      36      0        0        0        0
April 2015............      29      0        0        0        0
April 2016............      21      0        0        0        0
April 2017............      12      0        0        0        0
April 2018............       3      0        0        0        0
April 2019............       0      0        0        0        0
April 2020............       0      0        0        0        0
April 2021............       0      0        0        0        0
April 2022............       0      0        0        0        0
April 2023............       0      0        0        0        0
April 2024............       0      0        0        0        0
April 2025............       0      0        0        0        0
April 2026............       0      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life    
  (in years)**........    13.9    4.6      4.6      4.6      3.5
                      
<CAPTION>
                                         CLASS A-6
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- ---------------------     -----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............      97     93       88       88       87
April 1999............      96     88       71       68       46
April 2000............      95     87       54       41        3
April 2001............      94     87       40       21        0
April 2002............      93     86       30        6        0
April 2003............      92     84       24        0        0
April 2004............      91     81       19        0        0
April 2005............      90     75       15        0        0
April 2006............      88     67       13        0        0
April 2007............      87     59       11        0        0
April 2008............      85     51       10        0        0
April 2009............      84     43        8        0        0
April 2010............      82     34        6        0        0
April 2011............      80     25        4        0        0
April 2012............      78     16        2        0        0
April 2013............      76      8        1        0        0
April 2014............      73      0        0        0        0
April 2015............      71      0        0        0        0
April 2016............      68      0        0        0        0
April 2017............      65      0        0        0        0
April 2018............      62      0        0        0        0
April 2019............      51      0        0        0        0
April 2020............      35      0        0        0        0
April 2021............      19      0        0        0        0
April 2022............       1      0        0        0        0
April 2023............       0      0        0        0        0
April 2024............       0      0        0        0        0
April 2025............       0      0        0        0        0
April 2026............       0      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life
  (in years)**........    19.1    10.4     4.5      2.8      1.9
                      
<CAPTION>
                                         CLASS A-7
                          ---------------------------------------
  DISTRIBUTION DATE        0%     100%     235%     300%     450%
- ---------------------     -----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............     108    108       89       71       31
April 1999............     116    116       72       15        0
April 2000............     125    125       55        0        0
April 2001............     135    135       42        0        0
April 2002............     145    145       32        0        0
April 2003............     157    156       26        0        0
April 2004............     169    168       23        0        0
April 2005............     182    182       21        0        0
April 2006............     196    196       19        0        0
April 2007............     211    211       14        0        0
April 2008............     228    227       10        0        0
April 2009............     245    245        6        0        0
April 2010............     264    264        3        0        0
April 2011............     285    284        1        0        0
April 2012............     307    295        0        0        0
April 2013............     331    267        0        0        0
April 2014............     356    241        0        0        0
April 2015............     384    207        0        0        0
April 2016............     414    176        0        0        0
April 2017............     446    146        0        0        0
April 2018............     481    117        0        0        0
April 2019............     518     90        0        0        0
April 2020............     533     64        0        0        0
April 2021............     476     40        0        0        0
April 2022............     415     16        0        0        0
April 2023............     329      3        0        0        0
April 2024............     233      1        0        0        0
April 2025............     130      0        0        0        0
April 2026............      18      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    26.4    20.1     4.7      1.4      0.8
</TABLE>              
 
- ------------------------------
 * Rounded to the nearest whole percentage.
 
** Determined  as  specified  under  'Weighted  Average  Lives  of  the  Offered
   Certificates' herein.
 
                                      S-36
 
<PAGE>

<PAGE>
     PERCENT OF INITIAL CLASS CERTIFICATE BALANCES OUTSTANDING* (CONTINUED)
<TABLE>
<CAPTION>
                                         CLASS A-8
                          ----------------------------------------
  DISTRIBUTION DATE        0%      100%     235%     300%     450%
- ----------------------    ----     ----     ----     ----     ----
 
<S>                       <C>      <C>      <C>      <C>      <C>
Initial...............     100     100      100      100      100
April 1998............     100     100      100      100      100
April 1999............     100     100      100      100      100
April 2000............     100     100      100      100      100
April 2001............     100     100      100      100      100
April 2002............     100     100      100      100        0
April 2003............     100      55       55       55        0
April 2004............     100       0        0        0        0
April 2005............     100       0        0        0        0
April 2006............     100       0        0        0        0
April 2007............     100       0        0        0        0
April 2008............     100       0        0        0        0
April 2009............     100       0        0        0        0
April 2010............     100       0        0        0        0
April 2011............     100       0        0        0        0
April 2012............     100       0        0        0        0
April 2013............     100       0        0        0        0
April 2014............     100       0        0        0        0
April 2015............      90       0        0        0        0
April 2016............      26       0        0        0        0
April 2017............       0       0        0        0        0
April 2018............       0       0        0        0        0
April 2019............       0       0        0        0        0
April 2020............       0       0        0        0        0
April 2021............       0       0        0        0        0
April 2022............       0       0        0        0        0
April 2023............       0       0        0        0        0
April 2024............       0       0        0        0        0
April 2025............       0       0        0        0        0
April 2026............       0       0        0        0        0
April 2027............       0       0        0        0        0
Weighted Average Life
  (in years)**........    18.7     6.1      6.1      6.1      4.3
 
<CAPTION>
                                         CLASS A-9
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- ----------------------    ----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............     100    100      100      100      100
April 1999............     100    100      100      100      100
April 2000............     100    100      100      100      100
April 2001............     100    100      100      100      100
April 2002............     100    100      100      100       17
April 2003............     100    100      100      100        0
April 2004............     100     73       73       73        0
April 2005............     100     27       27       27        0
April 2006............     100      0        0        0        0
April 2007............     100      0        0        0        0
April 2008............     100      0        0        0        0
April 2009............     100      0        0        0        0
April 2010............     100      0        0        0        0
April 2011............     100      0        0        0        0
April 2012............     100      0        0        0        0
April 2013............     100      0        0        0        0
April 2014............     100      0        0        0        0
April 2015............     100      0        0        0        0
April 2016............     100      0        0        0        0
April 2017............      75      0        0        0        0
April 2018............      31      0        0        0        0
April 2019............       0      0        0        0        0
April 2020............       0      0        0        0        0
April 2021............       0      0        0        0        0
April 2022............       0      0        0        0        0
April 2023............       0      0        0        0        0
April 2024............       0      0        0        0        0
April 2025............       0      0        0        0        0
April 2026............       0      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    20.6    7.6      7.6      7.6      4.8
                      
<CAPTION>
                                        CLASS A-10
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- ---------------------     -----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............      96     92       89       89       89
April 1999............      94     86       72       72       52
April 2000............      92     84       55       47        7
April 2001............      91     83       42       26        0
April 2002............      89     81       32       11        0
April 2003............      86     79       26        4        0
April 2004............      84     76       24        0        0
April 2005............      82     73       22        0        0
April 2006............      79     66       20        0        0
April 2007............      76     54       14        0        0
April 2008............      73     42       10        0        0
April 2009............      70     31        6        0        0
April 2010............      66     20        3        0        0
April 2011............      62      9        0        0        0
April 2012............      58      0        0        0        0
April 2013............      53      0        0        0        0
April 2014............      49      0        0        0        0
April 2015............      43      0        0        0        0
April 2016............      38      0        0        0        0
April 2017............      31      0        0        0        0
April 2018............      25      0        0        0        0
April 2019............      14      0        0        0        0
April 2020............       0      0        0        0        0
April 2021............       0      0        0        0        0
April 2022............       0      0        0        0        0
April 2023............       0      0        0        0        0
April 2024............       0      0        0        0        0
April 2025............       0      0        0        0        0
April 2026............       0      0        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    15.0    9.3      4.7      3.0      2.0
</TABLE>              
 
- ------------------------------
 * Rounded to the nearest whole percentage.
 
** Determined  as  specified  under  'Weighted  Average  Lives  of  the  Offered
   Certificates' herein.
 
                                      S-37
 
<PAGE>

<PAGE>
     PERCENT OF INITIAL CLASS CERTIFICATE BALANCES OUTSTANDING* (CONTINUED)
<TABLE>
<CAPTION>
                                         CLASS A-R
                          ----------------------------------------
  DISTRIBUTION DATE        0%      100%     235%     300%     450%
- ----------------------    ----     ----     ----     ----     ----
 
<S>                       <C>      <C>      <C>      <C>      <C>
Initial...............     100     100      100      100      100
April 1998............       0       0        0        0        0
April 1999............       0       0        0        0        0
April 2000............       0       0        0        0        0
April 2001............       0       0        0        0        0
April 2002............       0       0        0        0        0
April 2003............       0       0        0        0        0
April 2004............       0       0        0        0        0
April 2005............       0       0        0        0        0
April 2006............       0       0        0        0        0
April 2007............       0       0        0        0        0
April 2008............       0       0        0        0        0
April 2009............       0       0        0        0        0
April 2010............       0       0        0        0        0
April 2011............       0       0        0        0        0
April 2012............       0       0        0        0        0
April 2013............       0       0        0        0        0
April 2014............       0       0        0        0        0
April 2015............       0       0        0        0        0
April 2016............       0       0        0        0        0
April 2017............       0       0        0        0        0
April 2018............       0       0        0        0        0
April 2019............       0       0        0        0        0
April 2020............       0       0        0        0        0
April 2021............       0       0        0        0        0
April 2022............       0       0        0        0        0
April 2023............       0       0        0        0        0
April 2024............       0       0        0        0        0
April 2025............       0       0        0        0        0
April 2026............       0       0        0        0        0
April 2027............       0       0        0        0        0
Weighted Average Life
  (in years)**........     0.1     0.1      0.1      0.1      0.1
 
<CAPTION>
                                         CLASS PO
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- --------------------      ----    ----     ----     ----     ----
<S>                        <C>    <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............      99     98       96       95       92
April 1999............      98     93       86       83       75
April 2000............      97     87       73       67       55
April 2001............      96     80       62       55       40
April 2002............      95     75       53       44       29
April 2003............      93     69       45       36       21
April 2004............      92     64       38       29       15
April 2005............      90     59       32       23       11
April 2006............      89     55       27       19        8
April 2007............      87     50       23       15        5
April 2008............      85     46       19       12        4
April 2009............      83     42       16       10        3
April 2010............      81     39       13        8        2
April 2011............      78     35       11        6        1
April 2012............      76     32        9        5        1
April 2013............      73     29        8        4        1
April 2014............      70     26        6        3        0
April 2015............      66     23        5        2        0
April 2016............      63     21        4        2        0
April 2017............      59     18        3        1        0
April 2018............      55     16        3        1        0
April 2019............      50     14        2        1        0
April 2020............      45     12        2        1        0
April 2021............      40     10        1        0        0
April 2022............      34      8        1        0        0
April 2023............      28      6        1        0        0
April 2024............      22      4        0        0        0
April 2025............      15      3        0        0        0
April 2026............       7      1        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    20.2    11.7     6.9      5.8      4.2
                      
<CAPTION>
                             CLASS M, CLASS B-1 AND CLASS B-2
                          ---------------------------------------
  DISTRIBUTION DATE         0%     100%     235%     300%     450%
- --------------------      ----    ----     ----     ----     ----
<S>                       <C>       <C>      <C>      <C>      <C>
Initial...............     100    100      100      100      100
April 1998............      99     99       99       99       99
April 1999............      98     98       98       98       98
April 2000............      97     97       97       97       97
April 2001............      96     96       96       96       96
April 2002............      95     95       95       95       95
April 2003............      94     92       90       88       85
April 2004............      92     89       83       81       74
April 2005............      91     84       75       70       60
April 2006............      89     79       65       59       46
April 2007............      88     72       55       47       33
April 2008............      86     67       46       38       23
April 2009............      84     61       39       30       17
April 2010............      82     56       32       24       12
April 2011............      79     51       27       19        8
April 2012............      77     46       22       15        6
April 2013............      74     42       19       12        4
April 2014............      71     38       15       10        3
April 2015............      68     34       13        7        2
April 2016............      64     30       10        6        1
April 2017............      60     27        8        4        1
April 2018............      56     23        7        3        1
April 2019............      51     20        5        3        0
April 2020............      46     17        4        2        0
April 2021............      41     14        3        1        0
April 2022............      35     12        2        1        0
April 2023............      29      9        2        1        0
April 2024............      22      6        1        0        0
April 2025............      15      4        1        0        0
April 2026............       7      2        0        0        0
April 2027............       0      0        0        0        0
Weighted Average Life     
  (in years)**........    20.4    15.1     11.6     10.6     9.1
</TABLE>              
 
- ------------------------------
 * Rounded to the nearest whole percentage.
 
** Determined  as  specified  under  'Weighted  Average  Lives  of  the  Offered
   Certificates' herein.
 
                                      S-38


<PAGE>

<PAGE>
LAST SCHEDULED DISTRIBUTION DATE
 
     The Last Scheduled Distribution Date for each Class of Offered Certificates
is  the Distribution Date  in June 2027,  which is the  Distribution Date in the
month following the month of the latest  scheduled maturity date for any of  the
Mortgage  Loans.  Since the  rate  of distributions  in  reduction of  the Class
Certificate Balance or  Notional Amount  of each Class  of Offered  Certificates
will  depend  on the  rate of  payment (including  prepayments) of  the Mortgage
Loans, the Class Certificate Balance or Notional Amount of any such Class  could
be  reduced  to zero  significantly  earlier or  later  than the  Last Scheduled
Distribution Date. The  rate of payments  on the Mortgage  Loans will depend  on
their  particular characteristics, as well as  on prevailing interest rates from
time to time and other economic factors, and no assurance can be given as to the
actual payment  experience of  the Mortgage  Loans. See  'Yield, Prepayment  and
Maturity   Considerations   --   Prepayment   Considerations   and   Risks'  and
' -- Weighted Average Lives of  the Offered Certificates' herein and 'Yield  and
Prepayment Considerations' in the Prospectus.
 
THE SUBORDINATED CERTIFICATES
 
     The   weighted  average  life  of,  and  the  yield  to  maturity  on,  the
Subordinated  Certificates,  in  increasing  order  of  their  numerical   Class
designation,  will be  progressively more  sensitive to  the rate  and timing of
mortgagor defaults and the severity of ensuing losses on the Mortgage Loans.  If
the  actual rate  and severity of  losses on  the Mortgage Loans  is higher than
those assumed by  a holder of  a Subordinated Certificate,  the actual yield  to
maturity of such Certificate may be lower than the yield expected by such holder
based  on such  assumption. The  timing of  losses on  Mortgage Loans  will also
affect an investor's actual yield to maturity, even if the rate of defaults  and
severity  of losses over  the life of  the Mortgage Pool  are consistent with an
investor's expectations. In general, the earlier a loss occurs, the greater  the
effect on an investor's yield to maturity. Realized Losses on the Mortgage Loans
will   reduce  the  Class  Certificate  Balances  of  the  applicable  Class  of
Subordinated Certificates  to the  extent of  any losses  allocated thereto  (as
described  under  'Description of  the Certificates  -- Allocation  of Losses'),
without the  receipt  of  cash  attributable to  such  reduction.  In  addition,
shortfalls  in cash available for distributions on the Subordinated Certificates
will result in  a reduction in  the Class  Certificate Balance of  the Class  of
Subordinated  Certificates  then outstanding  with  the highest  numerical Class
designation if and  to the extent  that the aggregate  of the Class  Certificate
Balances  of all  Classes of Certificates,  following all  distributions and the
allocation of Realized Losses on a Distribution Date, exceeds the Pool Principal
Balance as of the Due Date occurring in the month of such Distribution Date.  As
a  result  of  such reductions,  less  interest  will accrue  on  such  Class of
Subordinated Certificates  than  otherwise  would  be the  case.  The  yield  to
maturity  of  the  Subordinated  Certificates  will  also  be  affected  by  the
disproportionate allocation of principal prepayments to the Senior Certificates,
Net  Interest  Shortfalls,  other  cash   shortfalls  in  Available  Funds   and
distribution  of funds  to Class  PO Certificateholders  otherwise available for
distribution on the Subordinated Certificates to the extent of reimbursement for
Class PO Deferred Amounts. See 'Description of the Certificates -- Allocation of
Losses' herein.
 
     If on any Distribution Date,  the Applicable Credit Support Percentage  for
any  Class of  Subordinated Certificates  is less  than its  Original Applicable
Credit Support  Percentage,  all  partial principal  prepayments  and  principal
prepayments  in full available for distribution on the Subordinated Certificates
will be allocated  solely to such  Class and all  other Classes of  Subordinated
Certificates  with lower numerical Class  designations, thereby accelerating the
amortization thereof relative to that of the Restricted Classes and reducing the
weighted average lives  of such Classes  of Subordinated Certificates  receiving
such distributions. Accelerating the amortization of the Classes of Subordinated
Certificates  with  lower numerical  Class  designations relative  to  the other
Classes of Subordinated Certificates is intended to preserve the availability of
the subordination provided by such other Classes.
 
     For purposes  of  allocating losses  and  prepayments to  the  Subordinated
Certificates,  the Class M Certificates will be deemed to have a lower numerical
Class designation than each other Class of Subordinated Certificates.
 
                               CREDIT ENHANCEMENT
 
SUBORDINATION OF CERTAIN CLASSES
 
     The rights  of the  holders  of the  Subordinated Certificates  to  receive
distributions  with respect to  the Mortgage Loans will  be subordinated to such
rights of  the  holders  of  the  Senior Certificates  and  the  rights  of  the
 
                                      S-39
 
<PAGE>

<PAGE>
holders  of  each Class  of Subordinated  Certificates (other  than the  Class M
Certificates) to receive such distributions will be further subordinated to such
rights of the Class or Classes of Subordinated Certificates with lower numerical
Class designations,  in each  case  only to  the  extent described  herein.  The
subordination  of the Subordinated  Certificates to the  Senior Certificates and
the subordination  of  the  Classes of  Subordinated  Certificates  with  higher
numerical Class designations to those with lower numerical Class designations is
intended  to increase  the likelihood  of receipt,  respectively, by  the Senior
Certificateholders and  the  holders  of Subordinated  Certificates  with  lower
numerical Class designations of the maximum amount to which they are entitled on
any  Distribution Date and  to provide such  holders protection against Realized
Losses, other than  Excess Losses.  In addition,  the Subordinated  Certificates
will provide limited protection against Special Hazard Losses, Bankruptcy Losses
and  Fraud Losses up to the Special Hazard Loss Coverage Amount, Bankruptcy Loss
Coverage Amount  and  Fraud Loss  Coverage  Amount, respectively,  as  described
below.  The applicable Non-PO  Percentage of Realized  Losses, other than Excess
Losses, will  be  allocated  to  the Class  of  Subordinated  Certificates  then
outstanding with the highest numerical Class designation. In addition, the Class
Certificate  Balance of such Class of  Subordinated Certificates will be reduced
by the amount of distributions on the Class PO Certificates in reimbursement for
Class PO Deferred Amounts.
 
     For purposes of  allocating losses  to the  Subordinated Certificates,  the
Class  M Certificates will be deemed to have a lower numerical Class designation
than each other Class of Subordinated Certificates.
 
     The Subordinated  Certificates  will  provide  limited  protection  to  the
Classes  of Certificates of higher relative  priority against (i) Special Hazard
Losses in an initial amount expected  to be up to approximately $2,516,664  (the
'Special  Hazard Loss  Coverage Amount'), (ii)  Bankruptcy Losses  in an initial
amount expected to be up to approximately $50,000 (the 'Bankruptcy Loss Coverage
Amount') and  (iii) Fraud  Losses in  an initial  amount expected  to be  up  to
approximately $5,033,328 (the 'Fraud Loss Coverage Amount').
 
     The Special Hazard Loss Coverage Amount will be reduced, from time to time,
to be an amount equal on any Distribution Date to the lesser of (a) the greatest
of (i) 1% of the aggregate of the principal balances of the Mortgage Loans, (ii)
twice the principal balance of the largest Mortgage Loan and (iii) the aggregate
principal balances of the Mortgage Loans secured by Mortgaged Properties located
in  the  single California  postal zip  code area  having the  highest aggregate
principal balance of  any such zip  code area  and (b) the  Special Hazard  Loss
Coverage  Amount  as of  the Closing  Date less  the amount,  if any,  of losses
attributable to Special Hazard Mortgage  Loans incurred since the Closing  Date.
All  principal balances for the purpose of this definition will be calculated as
of the first  day of  the month preceding  such Distribution  Date after  giving
effect to scheduled installments of principal and interest on the Mortgage Loans
then due, whether or not paid.
 
     The  Fraud Loss Coverage Amount will be  reduced, from time to time, by the
amount of  Fraud Losses  allocated to  the Certificates.  In addition,  on  each
anniversary  of the Cut-off Date, the Fraud Loss Coverage Amount will be reduced
as follows: (a)  on the  first, second, third  and fourth  anniversaries of  the
Cut-off  Date, to an  amount equal to the  lesser of (i) 1%  of the then current
Pool Principal Balance and (ii) the excess of the Fraud Loss Coverage Amount  as
of  the preceding anniversary of the Cut-off  Date over the cumulative amount of
Fraud Losses allocated to the Certificates since such preceding anniversary  and
(b) on the fifth anniversary of the Cut-off Date, to zero.
 
     The  Bankruptcy Loss Coverage Amount will be reduced, from time to time, by
the amount of Bankruptcy Losses allocated to the Certificates.
 
     The amount  of  coverage  provided by  the  Subordinated  Certificates  for
Special  Hazard Losses, Bankruptcy  Losses and Fraud Losses  may be cancelled or
reduced from time to time for each of the risks covered, provided that the  then
current  ratings of  the Certificates  assigned by  the Rating  Agencies are not
adversely affected  thereby  without regard  to  the guaranty  provided  by  the
Policy.  In addition, a reserve fund or  other form of credit enhancement may be
substituted for the  protection provided  by the  Subordinated Certificates  for
Special Hazard Losses, Bankruptcy Losses and Fraud Losses.
 
     As  used herein, a 'Deficient Valuation' is a bankruptcy proceeding whereby
the bankruptcy court  may establish the  value of the  Mortgaged Property at  an
amount  less than  the then outstanding  principal balance of  the Mortgage Loan
secured by  such Mortgaged  Property  or may  reduce the  outstanding  principal
balance  of a  Mortgage Loan. In  the case  of a reduction  in the  value of the
related Mortgaged Property, the amount of  the secured debt could be reduced  to
such  value, and the holder of such Mortgage Loan thus would become an unsecured
creditor to the extent the outstanding  principal balance of such Mortgage  Loan
exceeds the value so
 
                                      S-40
 
<PAGE>

<PAGE>
assigned to the Mortgaged Property by the bankruptcy court. In addition, certain
other modifications of the terms of a Mortgage Loan can result from a bankruptcy
proceeding,  including the reduction (a 'Debt  Service Reduction') of the amount
of the  monthly  payment  on  the related  Mortgage  Loan.  Notwithstanding  the
foregoing,  no such occurrence  shall be considered a  Debt Service Reduction or
Deficient Valuation  so  long as  the  Master  Servicer is  pursuing  any  other
remedies that may be available with respect to the related Mortgage Loan and (i)
such  Mortgage Loan is not in default  with respect to payment due thereunder or
(ii) scheduled monthly payments of principal and interest are being advanced  by
the  Master  Servicer without  giving effect  to any  Debt Service  Reduction or
Deficient Valuation.
 
THE FINANCIAL GUARANTY INSURANCE POLICY
 
THE POLICY
 
     The following summary of the provisions of the financial guaranty insurance
policy to be issued by Financial Security (the 'Policy') does not purport to  be
complete  and is qualified in its entirety by reference to the Policy, copies of
which may be  obtained from the  Trustee upon request.  Simultaneously with  the
issuance  of the Certificates, Financial Security will deliver the Policy to the
Trustee for the benefit of each holder of the Class A-3 Certificates. Under  the
Policy,  Financial Security  unconditionally and  irrevocably guarantees  to the
Trustee for the benefit of  each holder of the  Class A-3 Certificates the  full
and complete payment on each Distribution Date of: (i) the Interest Distribution
Amount  for the Class A-3 Certificates for such Distribution Date reduced by the
amount of  Net Interest  Shortfalls allocated  to such  Classes of  Certificates
arising  from Relief Act  Reductions and (ii)  the amount of  any Realized Loss,
including any  Excess Loss,  allocated to  the Class  A-3 Certificates  on  such
Distribution  Date (collectively, the  'Guaranteed Distributions'). In addition,
Guaranteed Distributions shall  include the  Class Certificate  Balances of  the
Class  A-3 Certificates to the extent  unpaid on the Last Scheduled Distribution
Date or earlier  termination of  the Trust  Fund pursuant  to the  terms of  the
Agreement.  In addition,  the Policy  will cover  the amount  of any  payment of
principal or interest  to any holder  of a Class  A-3 Certificate which  payment
subsequently  is  avoided in  whole or  in  part as  a preference  payment under
applicable law. THE POLICY WILL NOT PROVIDE CREDIT ENHANCEMENT FOR ANY CLASS  OF
CERTIFICATES OTHER THAN THE CLASS A-3 CERTIFICATES.
 
     If,  by  the  close of  business  on  the second  Business  Day  before any
Distribution Date,  the Trustee  determines that  funds expected  to be  in  the
Distribution  Account on such Distribution Date will be insufficient to make the
Guaranteed Distributions on  the Class  A-3 Certificates  for that  Distribution
Date,  the Trustee is required to make a claim under the Policy in the amount of
such deficiency. Payment of  claims under the Policy  will be made by  Financial
Security  following  Receipt (as  defined below)  by  Financial Security  of the
appropriate notice for payment  on the latter  to occur of  (a) 12:00 noon,  New
York  City time, on the second Business Day following Receipt of such notice for
payment and  (b) 12:00  noon, New  York City  time, on  the date  on which  such
Guaranteed Distribution is due on the Class A-3 Certificates.
 
     If  payment  of  any  amount  avoided  as  a  preference  under  applicable
bankruptcy, insolvency, receivership or similar law is required to be made under
the Policy, Financial Security shall cause such payment to be made on the latter
of (a) the date when due to be  paid pursuant to the Order referred to below  or
(b)  the first  to occur  of (i)  the fourth  Business Day  following Receipt by
Financial Security from the Trustee  of (A) a certified  copy of the order  (the
'Order') of the court or other governmental body which exercised jurisdiction to
the effect that the relevant Class A-3 Certificateholders are required to return
principal  or interest paid with respect to such Certificates during the Term of
the Policy because  such payments  were avoidable as  preference payments  under
applicable  bankruptcy  law,  (B)  a  certificate  of  each  relevant  Class A-3
Certificateholder that the Order has been entered and is not subject to any stay
and (C) an  assignment duly executed  and delivered by  each relevant Class  A-3
Certificateholder,  in such form as is reasonably required by Financial Security
and provided to the relevant Class A-3 Certificateholder by Financial  Security,
irrevocably  assigning to Financial Security all  rights and claims of the Class
A-3 Certificateholder  relating  to or  arising  under the  relevant  Class  A-3
Certificates  held by such  Class A-3 Certificateholder  against the debtor that
made such  preference  payment or  otherwise  with respect  to  such  preference
payment  or (ii) the date  of Receipt by Financial  Security from the Trustee of
the items referred to in clauses (A), (B) and (C) of (i) above if, at least four
Business Days  prior to  such date  of Receipt,  Financial Security  shall  have
Received written notice from the Trustee that such items were to be delivered on
such  date and  such date was  specified in  such notice. Such  payment shall be
disbursed to the
 
                                      S-41
 
<PAGE>

<PAGE>
receiver, conservator, debtor-in-possession  or trustee in  bankruptcy named  in
the  Order and not  to the Trustee  or any Class  A-3 Certificateholder directly
(unless such Certificateholder has previously paid such amount to the  receiver,
conservator,  debtor-in-possession or trustee in  bankruptcy named in the Order,
in which case such payment shall be disbursed to the Trustee for distribution to
such Certificateholder upon  proof of  such payment  reasonably satisfactory  to
Financial  Security). In connection with the foregoing, Financial Security shall
have certain rights of subrogation, as described in the Agreement.
 
     The terms 'Receipt' and 'Received' with  respect to the Policy mean  actual
delivery to Financial Security and to Financial Security's fiscal agent, if any,
prior to 5:00 p.m., New York City time, on a Business Day; delivery to either on
a  day that is not a Business Day or  after 5:00 p.m., New York City time, shall
be deemed to be Received on the  next succeeding Business Day. If any notice  or
certificate  given under the Policies by the Trustee is not in proper form or is
not properly completed, executed  or delivered, it shall  be deemed not to  have
been  Received, and  Financial Security  or its  fiscal agent  shall promptly so
advise the Trustee and the Trustee may submit an amended notice.
 
     Under the Policy, 'Business Day' means any day other than (i) a Saturday or
Sunday or (ii) a day on which banking institutions in the City of New York,  New
York are authorized or obligated by law or executive order to be closed.
 
     'Term  of  the Policy'  means the  period  from and  including the  date of
issuance of  the  Policy to  and  including the  date  on which  (i)  the  Class
Certificate  Balance of  all of  the Class  A-3 Certificates  is zero,  (ii) any
payment on the Class  A-3 Certificates could  have been avoided  in whole or  in
part   as  a   preference  payment  under   applicable  bankruptcy,  insolvency,
receivership or similar law has expired, and (iii) if any proceedings  requisite
to avoidance as a preference payment have been commenced prior to the occurrence
of  (i) and  (ii), a final  and nonappealable  order in resolution  of each such
proceeding as been entered.
 
     Financial Security's  obligations  under  the  Policy  in  respect  of  the
Guaranteed Distributions shall be discharged to the extent funds are transferred
to  the Trustee as provided in the Policy whether or not such funds are properly
applied by the Trustee.
 
     Pursuant to the terms of the Agreement, unless Financial Security fails  to
make  a required payment under the Policy, a proceeding in bankruptcy shall have
been instituted by Financial Security or a decree or order for relief shall have
been issued in respect of a proceeding in bankruptcy against Financial  Security
and  shall remain  unstayed for  a period  of 60  consecutive days  (together, a
'Financial Security Default'), Financial Security  will be entitled to  exercise
the  voting rights of  the Class A-3  Certificateholders, as applicable, without
the consent of such Certificateholders, and such Certificateholders may exercise
such rights only with the prior written consent of Financial Security.
 
     The Policy is not covered by the property/casualty insurance security  fund
specified in Article 76 of the New York Insurance Law. The Policy is governed by
the laws of the State of New York.
 
FINANCIAL SECURITY ASSURANCE INC.
 
     The  following information set  forth in this section  has been provided by
the  Insurer.  Accordingly,  neither  the   Depositor,  the  Servicer  nor   any
Underwriter makes any representation as to the accuracy and completeness of such
information.
 
     General.  Financial Security  Assurance Inc.  (the 'Insurer'  or 'Financial
Security') is a monoline insurance company  incorporated in 1984 under the  laws
of  the State of  New York. The Insurer  is licensed to  engage in the financial
guaranty insurance  business in  all 50  states, the  District of  Columbia  and
Puerto Rico.
 
     The  Insurer and  its subsidiaries are  engaged in the  business of writing
financial guaranty insurance,  principally in respect  of securities offered  in
domestic  and foreign markets. In general, financial guaranty insurance consists
of  the  issuance  of   a  guaranty  of  scheduled   payments  of  an   issuer's
securities  -- thereby  enhancing the  credit rating  of those  securities -- in
consideration for the payment of a premium  to the insurer. The Insurer and  its
subsidiaries  principally  insure  asset-backed,  collateralized  and  municipal
securities. Asset-backed  securities  are  generally  supported  by  residential
mortgage loans, consumer or trade receivables, securities or other assets having
an  ascertainable cash flow  or market value.  Collateralized securities include
public  utility  first  mortgage  bonds  and  sale/leaseback  obligation  bonds.
Municipal  securities  consist  largely  of  general  obligation  bonds, special
revenue bonds  and other  special obligations  of state  and local  governments.
 
                                      S-42
 
<PAGE>

<PAGE>
The  Insurer insures both newly issued securities sold in the primary market and
outstanding securities sold in the  secondary market that satisfy the  Insurer's
underwriting criteria.
 
     The  Insurer is a  wholly owned subsidiary  of Financial Security Assurance
Holdings Ltd.  ('Holdings'), a  New York  Stock Exchange  listed company.  Major
shareholders  of Holdings include Fund American  Enterprises Holdings, Inc., U S
WEST Capital Corporation and  the Tokio Marine and  Fire Insurance Co., Ltd.  No
shareholder of Holdings is obligated to pay any debt of the Insurer or any claim
under  any insurance  policy issued  by the  Insurer or  to make  any additional
contribution to the capital of the Insurer.
 
     The principal executive  offices of  the Insurer  are located  at 350  Park
Avenue,  New York, New York 10022, and  its telephone number at that location is
(212) 826-0100.
 
     Reinsurance.  Pursuant  to  an   intercompany  agreement,  liabilities   on
financial  guaranty insurance  written or  reinsured from  third parties  by the
Insurer or  any of  its domestic  operating insurance  company subsidiaries  are
reinsured  among  such  companies  on  an  agreed-upon  percentage substantially
proportional to  their  respective capital,  surplus  and reserves,  subject  to
applicable  statutory  risk limitations.  In addition,  the Insurer  reinsures a
portion of its  liabilities under  certain of its  financial guaranty  insurance
policies  with other  reinsurers under  various quota  shares treaties  and on a
transaction-by-transaction basis. Such reinsurance is utilized by the Insurer as
a risk management device and to comply with certain statutory and rating  agency
requirements;  it does  not alter or  limit the Insurer's  obligations under any
financial guaranty insurance policy.
 
     Rating of  Claims-Paying Ability.  The Insurer's  claims-paying ability  is
rated  'Aaa' by  Moody's and  'AAA' by  S&P, Nippon  Investors Service  Inc. and
Standard & Poor's (Australia) Pty. Ltd.  Such ratings reflect only the views  of
the  respective rating  agencies, are not  recommendations to buy,  sell or hold
securities and are subject to revision or withdrawal at any time by such  rating
agencies. See 'Ratings' herein.
 
     Capitalization.  The following table  sets forth the  capitalization of the
Insurer and its  wholly owned subsidiaries  on the basis  of generally  accepted
accounting principles as of December 31, 1996 (in thousands):
 
<TABLE>
<CAPTION>
                                                                                          DECEMBER 31,
                                                                                              1996
                                                                                        ----------------
                                                                                          (UNAUDITED)
 
<S>                                                                                     <C>
Deferred Premium Revenue
  (net of prepaid reinsurance premiums)..............................................      $  359,972
                                                                                        ----------------
Shareholder's Equity:
     Common Stock....................................................................          15,000
     Additional Paid-In Capital......................................................         654,470
     Unrealized Gain on Investments (net of deferred income taxes)...................           9,099
     Accumulated Earnings............................................................         136,763
                                                                                        ----------------
Total Shareholder's Equity...........................................................         815,332
                                                                                        ----------------
Total Deferred Premium Revenue and Shareholder's Equity..............................      $1,175,304
                                                                                        ----------------
                                                                                        ----------------
</TABLE>
 
     For  further  information  concerning  the  Insurer,  see  the Consolidated
Financial Statements of  the Insurer  and Subsidiaries, and  the notes  thereto,
incorporated  by reference herein. Copies of  the statutory quarterly and annual
statements filed with the State of New York Insurance Department by the  Insurer
are available upon request to the State of New York Insurance Department.
 
     Incorporation of Certain Documents by Reference. The consolidated financial
statements  of the Insurer and subsidiaries included  in, or as exhibits to, the
following documents  which have  been  filed with  the Securities  and  Exchange
Commission  by Holdings, are hereby incorporated by reference in this Prospectus
Supplement: Annual Report  on Form  10-K for the  year ended  December 31,  1996
which  report is included as an exhibit  financial statements of the Insurer and
Subsidiaries for the year ended December 31, 1996.
 
     The Trustee  will  provide  without  charge to  any  person  to  whom  this
Prospectus Supplement is delivered, upon oral or written request of such person,
a  copy of  any or  all of  the foregoing  financial statements  incorporated by
reference. Requests for such  copies should be directed  to the Corporate  Trust
Office  of the Trustee  located at 101  Barclay Street, 12E,  New York, New York
10286, Attention: Corporate Trust Administration  or at such other addresses  as
the Trustee may designate from time to time.
 
                                      S-43
 
<PAGE>

<PAGE>
     All  financial statements  of the  Insurer included  in documents  filed by
Holdings pursuant  to Section  13(a), 13(c),  14 or  15(d) of  the Exchange  Act
subsequent  to  the  date  of  this  Prospectus  Supplement  and  prior  to  the
termination of the offering  of the Offered Certificates  shall be deemed to  be
incorporated  by  reference into  this Prospectus  Supplement and  to be  a part
hereof from the respective dates of filing of such documents.
 
     Insurance Regulation. The Insurer is licensed and subject to regulation  as
a  financial guaranty insurance corporation  under the laws of  the State of New
York, its  state  of  domicile.  In addition,  the  Insurer  and  its  insurance
subsidiaries  are subject to  regulation by insurance laws  of the various other
jurisdictions in which they are licensed to do business. As a financial guaranty
insurance corporation licensed  to do  business in the  State of  New York,  the
Insurer  is subject  to Article 69  of the  New York State  Insurance Law which,
among other  things, limits  the  business of  each  such insurer  to  financial
guaranty insurance and related lines, requires that each such insurer maintain a
minimum  surplus to  policyholders, establishes  contingency, loss  and unearned
premium reserve  requirements for  each such  insurer, and  limits the  size  of
individual   transactions  ('single  risks')  and  the  volume  of  transactions
('aggregate risks')  that  may  be  underwritten by  each  such  insurer.  Other
provisions  of  the New  York Insurance  Law,  applicable to  non-life insurance
companies,  such  as  the  Insurer,  regulate,  among  other  things,  permitted
investments,  payment  of  dividends,  transactions  with  affiliates,  mergers,
consolidations, acquisitions or  sales of assets  and incurrence of  liabilities
for borrowings.
 
     The  Policy. Financial Security  shall be subrogated to  the rights of each
holder of a Class A-3 Certificate to receive distributions on such  Certificates
to the extent of any payment by Financial Security under the Policy.
 
     To  the  fullest extent  permitted  by applicable  law,  Financial Security
agrees under the Policies  not to assert,  and waives, for  the benefit of  each
Class  A-3  Certificateholder,  as  appropriate,  all  its  rights  (whether  by
counterclaim, setoff or otherwise) and defenses (including, without  limitation,
the defense of fraud), whether acquired by subrogation, assignment or otherwise,
to  the  extent that  such rights  and  defenses may  be available  to Financial
Security to avoid payment of its obligations under the Policy in accordance with
the express provision of the Policy.
 
     Claims under the  Policy will  rank equally  with any  other unsecured  and
unsubordinated  obligations of Financial Security except for certain obligations
in respect  of tax  and other  payments to  which preference  is or  may  become
afforded  by statute.  Claims against  Financial Security  under the  Policy and
claims against Financial Security under each other financial guaranty  insurance
policy issued thereby constitute pari passu claims against the general assets of
Financial Security. The terms of the Policy cannot be modified or altered by any
other agreement or instrument, or by the merger, consolidation or dissolution of
the  Seller. The Policy may not be cancelled or revoked prior to payment in full
of the Class A-3 Certificates.
 
     Financial Security does not accept  any responsibility for the accuracy  or
completeness  of  this Prospectus  Supplement or  any information  or disclosure
contained herein, or omitted herefrom, other  than with respect to the  accuracy
of  information  regarding  Financial  Security  set  forth  under  the  heading
' -- Financial Security Assurance Inc.'
 
                                USE OF PROCEEDS
 
     The Depositor will apply the net  proceeds of the sale of the  Certificates
against the purchase price of the Mortgage Loans.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     For  federal income  tax purposes,  an election will  be made  to treat the
Trust Fund as a REMIC. The Residual Certificates will constitute the sole  Class
of 'residual interests' in the REMIC.
 
     The  Regular  Certificates generally  will be  treated as  debt instruments
issued by  the REMIC  for federal  income tax  purposes. Income  on the  Regular
Certificates must be reported under an accrual method of accounting.
 
     The  Principal Only  Certificates will  be treated  for federal  income tax
purposes as having been issued with an amount of Original Issue Discount ('OID')
equal to the difference between their  principal balance and their issue  price.
Although the tax treatment is not entirely certain, Notional Amount Certificates
will  be treated as having been issued  with OID for federal income tax purposes
equal to the excess  of all expected payments  of interest on such  Certificates
over  their  issue  price.  Although  unclear, a  holder  of  a  Notional Amount
Certificate may be entitled to  deduct a loss to  the extent that its  remaining
basis exceeds the maximum amount of future
 
                                      S-44
 
<PAGE>

<PAGE>
payments  to which  such Certificateholder  would be  entitled if  there were no
further prepayments  of the  Mortgage Loans.  The Accrual  Certificates will  be
treated  as having OID in  an amount equal to  the excess of (i)  the sum of all
payments thereon determined under the Prepayment Assumption described below over
(ii) their respective issue prices  (including accrued interest). The  remaining
Classes  of Regular Certificates, depending on their respective issue prices (as
described in the  Prospectus under 'Certain  Federal Income Tax  Consequences'),
may  be treated as having been issued  with OID for federal income tax purposes.
For purposes of determining  the amount and  rate of accrual  of OID and  market
discount, the Trust Fund intends to assume that there will be prepayments on the
Mortgage  Loans at a  rate equal to  235% SPA (the  'Prepayment Assumption'). No
representation is  made as  to whether  the Mortgage  Loans will  prepay at  the
foregoing   rate  or  any  other  rate.  See  'Yield,  Prepayment  and  Maturity
Considerations' herein  and 'Certain  Federal Income  Tax Consequences'  in  the
Prospectus.  Computing accruals of OID in the manner described in the Prospectus
may (depending on  the actual  rate of  prepayments during  the accrual  period)
result in the accrual of negative amounts of OID on the Certificates issued with
OID  in an accrual period. Holders will  be entitled to offset negative accruals
of OID only against future OID accrual on such Certificates.
 
     If the holders  of any  Regular Certificates  are treated  as holding  such
Certificates  at  a  premium, such  holders  should consult  their  tax advisors
regarding the election to amortize bond premium and the method to be employed.
 
     As is described more fully under 'Certain Federal Income Tax  Consequences'
in  the Prospectus,  the Offered  Certificates will  represent qualifying assets
under Sections 856(c)(5)(A)  and 7701(a)(19)(C)  of the Code,  and net  interest
income attributable to the Offered Certificates will be 'interest on obligations
secured   by  mortgages  on  real  property'   within  the  meaning  of  Section
856(c)(3)(B) of the Code, to the extent the assets of the Trust Fund are  assets
described  in such sections. The  Regular Certificates will represent qualifying
assets under Section  860G(a)(3) if acquired  by a REMIC  within the  prescribed
time periods of the Code.
 
     The holders of the Residual Certificates must include the taxable income of
the  REMIC in their federal  taxable income. The resulting  tax liability of the
holders may exceed cash  distributions to such  holders during certain  periods.
All or a portion of the taxable income from a Residual Certificate recognized by
a  holder  may  be treated  as  'excess  inclusion' income,  which  with limited
exceptions, is subject to U.S federal income tax.
 
     The Small Business Job  Protection Act of 1996  has eliminated the  special
rule  permitting  Section 593  institutions ('thrift  institutions') to  use net
operating losses and other allowable deductions to offset their excess inclusion
income from REMIC  residual certificates that  have 'significant value')  within
the  meaning of  the REMIC  Regulations, effective  for taxable  years beginning
after  December  31,  1995,  except   with  respect  to  residual   certificates
continuously held by a thrift institution since November 1, 1995.
 
     In  addition, the Small Business Job  Protection Act of 1996 provides three
rules for determining the effect on excess inclusions on the alternative minimum
taxable income of a residual  holder. First, alternative minimum taxable  income
for  such residual holder is determined without  regard to the special rule that
taxable income  cannot  be  less  than excess  inclusions.  Second,  a  residual
holder's  alternative minimum taxable income for a  tax year cannot be less than
the excess inclusions for the year. Third, the amount of any alternative minimum
tax net operating loss deductions must be computed without regard to any  excess
inclusions. These rules are effective for tax years beginning after December 31,
1986, unless a residual holder elects to have such rules apply only to tax years
beginning after August 20, 1996.
 
     Furthermore,  the Small Business Job Protection Act of 1996, as part of the
repeal of the  bad debt  reserve method  for thrift  institutions, repealed  the
application  of Code Section 593(d) to any taxable year beginning after December
31, 1995.
 
     Also, purchasers of  a Residual Certificate  should consider carefully  the
tax  consequences of  an investment  in Residual  Certificates discussed  in the
Prospectus and  should consult  their own  tax advisors  with respect  to  those
consequences.   See   'Certain  Federal   Income   Tax  Consequences   --  REMIC
Certificates --  b.  Residual  Certificates' in  the  Prospectus.  Specifically,
prospective  holders of Residual Certificates  should consult their tax advisors
regarding whether, at the  time of acquisition, a  Residual Certificate will  be
treated as a 'noneconomic' residual interest, a 'non-significant value' residual
interest and a 'tax avoidance potential' residual interest. See 'Certain Federal
Income  Tax  Consequences --  Tax-Related Restrictions  on Transfer  of Residual
Certificates -- Noneconomic Residual Certificates,' 'Certain Federal Income  Tax
Consequences  -- b. Residual Certificates -- Mark  to Market Rules,' ' -- Excess
Inclusions'  and  'Certain  Federal  Income  Tax  Consequences  --  Tax  Related
 
                                      S-45
 
<PAGE>

<PAGE>
Restrictions  on Transfers of Residual Certificates -- Foreign Investors' in the
Prospectus. Additionally, for information regarding Prohibited Transactions  and
Treatment    of   Realized    Losses,   see   'Certain    Federal   Income   Tax
Consequences --  Prohibited  Transactions  and  Other  Taxes'  and  '  --  REMIC
Certificates  -- a. Regular Certificates -- Treatment of Realized Losses' in the
Prospectus.
 
                              ERISA CONSIDERATIONS
 
     Any Plan fiduciary  which proposes to  cause a Plan  (as defined below)  to
acquire  any of  the Offered Certificates  should consult with  its counsel with
respect to  the  potential consequences  under  the Employee  Retirement  Income
Security  Act  of 1974,  as amended  ('ERISA')  and/or the  Code, of  the Plan's
acquisition and ownership  of such Certificates.  See 'ERISA Considerations'  in
the  Prospectus.  Section  406 of  ERISA  prohibits 'parties  in  interest' with
respect to  an employee  benefit plan  subject to  ERISA and/or  the excise  tax
provisions  set forth under Section 4975 of the Code (a 'Plan') from engaging in
certain transactions involving such  Plan and its assets  unless a statutory  or
administrative  exemption applies to  the transaction. Section  4975 of the Code
imposes certain  excise taxes  on prohibited  transactions involving  Plans  and
other  arrangements  (including,  but  not  limited  to,  individual  retirement
accounts) described under that Section; ERISA authorizes the imposition of civil
penalties for  prohibited  transactions  involving  Plans  not  subject  to  the
requirements of Section 4975 of the Code.
 
     Certain  employee benefit  plans, including governmental  plans and certain
church plans, are not  subject to ERISA's  requirements. Accordingly, assets  of
such  plans may be  invested in the  Offered Certificates without  regard to the
ERISA considerations  described herein  and in  the Prospectus,  subject to  the
provisions  of other  applicable federal  and state law.  Any such  plan that is
qualified and exempt from taxation under Sections 401(a) and 501(a) of the  Code
may  nonetheless be  subject to  the prohibited  transaction rules  set forth in
Section 503 of the Code.
 
     Except as noted above, investments by Plans are subject to ERISA's  general
fiduciary  requirements, including  the requirement  of investment  prudence and
diversification and  the  requirement  that  a Plan's  investments  be  made  in
accordance  with the documents  governing the Plan. A  fiduciary that decides to
invest the assets of a Plan  in the Offered Certificates should consider,  among
other  factors,  the  extreme  sensitivity  of the  investment  to  the  rate of
principal payments (including prepayments) on the Mortgage Loans.
 
     The U.S.  Department  of Labor  has  granted an  individual  administrative
exemption  to Donaldson,  Lufkin &  Jenrette Securities  Corporation (Prohibited
Transaction Exemption  90-83, Exemption  Application No.  D-8346, 55  Fed.  Reg.
50250  (1990) (the 'Exemption') from certain of the prohibited transaction rules
of ERISA and the related excise tax provisions of Section 4975 of the Code  with
respect  to the initial purchase, the holding and the subsequent resale by Plans
of certificates  in pass-through  trusts that  consist of  certain  receivables,
loans  and other  obligations that meet  the conditions and  requirements of the
Exemption. The Exemption applies to mortgage loans such as the Mortgage Loans in
the Trust Fund.
 
     For a general description of the Exemption and the conditions that must  be
satisfied  for  the  Exemption  to  apply,  see  'ERISA  Considerations'  in the
Prospectus.
 
     It is expected that the Exemption will apply to the acquisition and holding
by Plans of the Senior Certificates (other than the Class PO, Class X and  Class
A-R  Certificates) and  that all  conditions of  the Exemption  other than those
within the control of  the investors will  be met. In addition,  as of the  date
hereof, there is no single Mortgagor that is the obligor on five percent (5%) of
the Mortgage Loans included in the Trust Fund by aggregate unamortized principal
balance  of the  assets of  the Trust  Fund. BECAUSE  THE CLASS  PO AND  CLASS X
CERTIFICATES ARE  NOT BEING  PURCHASED BY  EITHER UNDERWRITER,  SUCH CLASSES  OF
CERTIFICATES  DO NOT  CURRENTLY MEET  THE REQUIREMENTS  OF THE  EXEMPTION OR ANY
COMPARABLE INDIVIDUAL ADMINISTRATIVE  EXEMPTION GRANTED  TO EITHER  UNDERWRITER.
CONSEQUENTLY,  THE SALE OR EXCHANGE OF THE CLASS PO AND CLASS X CERTIFICATES MAY
BE MADE ONLY UNDER THE CONDITIONS SET FORTH FOR THE CLASS M, CLASS B-1 AND CLASS
B-2 CERTIFICATES BELOW.
 
     BECAUSE THE CHARACTERISTICS OF THE CLASS M, CLASS B-1, CLASS B-2 AND  CLASS
A-R  CERTIFICATES MAY NOT MEET  THE REQUIREMENTS OF PTCE  83-1, THE EXEMPTION OR
ANY OTHER ISSUED EXEMPTION UNDER ERISA, THE PURCHASE AND HOLDING OF THE CLASS M,
CLASS B-1, CLASS  B-2 AND  CLASS A-R  CERTIFICATES BY  A PLAN  OR BY  INDIVIDUAL
RETIREMENT  ACCOUNTS OR  OTHER PLANS  SUBJECT TO  SECTION 4975  OF THE  CODE MAY
RESULT IN PROHIBITED  TRANSACTIONS OR THE  IMPOSITION OF EXCISE  TAXES OR  CIVIL
PENALTIES. CONSEQUENTLY, TRANSFERS OF THE CLASS M,
 
                                      S-46
 
<PAGE>

<PAGE>
CLASS  B-1, CLASS B-2 AND  CLASS A-R CERTIFICATES WILL  NOT BE REGISTERED BY THE
TRUSTEE UNLESS THE TRUSTEE RECEIVES: (i) A REPRESENTATION FROM THE TRANSFEREE OF
SUCH CERTIFICATE, ACCEPTABLE TO  AND IN FORM AND  SUBSTANCE SATISFACTORY TO  THE
TRUSTEE,  TO THE  EFFECT THAT  SUCH TRANSFEREE IS  NOT AN  EMPLOYEE BENEFIT PLAN
SUBJECT TO SECTION 406 OF ERISA OR A PLAN OR ARRANGEMENT SUBJECT TO SECTION 4975
OF THE CODE, NOR A PERSON ACTING ON  BEHALF OF ANY SUCH PLAN OR ARRANGEMENT  NOR
USING  THE ASSETS OF ANY SUCH PLAN  OR ARRANGEMENT TO EFFECT SUCH TRANSFER; (ii)
IF THE PURCHASER IS AN INSURANCE COMPANY, A REPRESENTATION THAT THE PURCHASER IS
AN INSURANCE COMPANY WHICH IS PURCHASING SUCH CERTIFICATES WITH FUNDS  CONTAINED
IN  AN 'INSURANCE COMPANY GENERAL  ACCOUNT' (AS SUCH TERM  IS DEFINED IN SECTION
V(e) OF PROHIBITED TRANSACTION  CLASS EXEMPTION 95-60  ('PTCE 95-60')) AND  THAT
THE  PURCHASE AND HOLDING OF SUCH CERTIFICATES  ARE COVERED UNDER PTCE 95-60; OR
(iii) AN OPINION  OF COUNSEL SATISFACTORY  TO THE TRUSTEE  THAT THE PURCHASE  OR
HOLDING  OF SUCH CERTIFICATE BY A PLAN, ANY PERSON ACTING ON BEHALF OF A PLAN OR
USING SUCH PLAN'S ASSETS, WILL NOT RESULT IN THE ASSETS OF THE TRUST FUND  BEING
DEEMED   TO  BE  'PLAN  ASSETS'  AND   SUBJECT  TO  THE  PROHIBITED  TRANSACTION
REQUIREMENTS OF ERISA  AND THE  CODE AND  WILL NOT  SUBJECT THE  TRUSTEE TO  ANY
OBLIGATION IN ADDITION TO THOSE UNDERTAKEN IN THE AGREEMENT. SUCH REPRESENTATION
AS  DESCRIBED ABOVE  SHALL BE  DEEMED TO HAVE  BEEN MADE  TO THE  TRUSTEE BY THE
TRANSFEREE'S ACCEPTANCE OF A CLASS M, CLASS B-1 OR CLASS B-2 CERTIFICATE. IN THE
EVENT THAT SUCH REPRESENTATION IS VIOLATED, OR ANY ATTEMPT TO TRANSFER TO A PLAN
OR PERSON ACTING ON BEHALF  OF A PLAN OR USING  SUCH PLAN'S ASSETS IS  ATTEMPTED
WITHOUT SUCH OPINION OF COUNSEL, SUCH ATTEMPTED TRANSFER OR ACQUISITION SHALL BE
VOID AND OF NO EFFECT.
 
     Prospective  Plan  investors  should  consult  with  their  legal  advisors
concerning the impact  of ERISA  and the Code,  the applicability  of PTCE  83-1
described in the Prospectus and the Exemption, and the potential consequences in
their  specific  circumstances, prior  to  making an  investment  in any  of the
Offered Certificates.  Moreover, each  Plan fiduciary  should determine  whether
under   the   general   fiduciary   standards   of   investment   prudence   and
diversification, an investment in any of the Offered Certificates is appropriate
for the Plan, taking into account the overall investment policy of the Plan  and
the composition of the Plan's investment portfolio.
 
                             METHOD OF DISTRIBUTION
 
     Subject to the terms and conditions set forth in the Underwriting Agreement
among  the Depositor, Donaldson,  Lufkin & Jenrette  Securities Corporation (the
'Senior Certificate  Underwriter') and  Countrywide Securities  Corporation,  an
affiliate   of  the  Depositor  and   the  Master  Servicer  (the  'Subordinated
Certificate Underwriter' and, together with the Senior Certificate  Underwriter,
the  'Underwriters'), the Depositor has agreed  to sell to the Underwriters, and
each Underwriter  has agreed  to purchase  from the  Depositor, the  Classes  of
Underwritten  Certificates indicated on the cover page hereof to be purchased by
it. Distribution of  the Underwritten Senior  Certificates will be  made by  the
Senior Certificate Underwriter and distribution of the Underwritten Subordinated
Certificates  will be made by the  Subordinated Certificate Underwriter, in each
case from time to time in negotiated transactions or otherwise at varying prices
to be determined at the time of sale. The Underwritten Senior Certificates  will
also  be  offered by  Countrywide Securities  Corporation from  time to  time in
negotiated transactions or otherwise at varying  prices to be determined at  the
time  of sale. In connection with the sale of the Underwritten Certificates, the
Underwriters may be deemed to have  received compensation from the Depositor  in
the form of underwriting discounts.
 
     The  Senior Certificate Underwriter  intends to make  a secondary market in
the  Underwritten   Senior  Certificates   and  the   Subordinated   Certificate
Underwriter  intends to make a secondary market in the Underwritten Subordinated
Certificates, but neither Underwriter has any obligation to do so. There can  be
no  assurance that a secondary market  for the Offered Certificates will develop
or, if  it  does  develop,  that  it will  continue  or  that  it  will  provide
Certificateholders with a sufficient level of liquidity of investment.
 
     The  Depositor has  agreed to indemnify  the Underwriters  against, or make
contributions  to  the  Underwriters  with  respect  to,  certain   liabilities,
including liabilities under the Securities Act of 1933, as amended.
 
     The  Class X and Class PO Certificates may be offered by the Depositor from
time to time  directly or through  underwriters or agents  (either of which  may
include   Countrywide  Securities   Corporation)  in  one   or  more  negotiated
transactions, or otherwise, at  varying prices to be  determined at the time  of
sale,  in one or  more separate transactions  at prices to  be negotiated at the
time of each sale.  Proceeds to the Depositor  from any sale of  the Class X  or
Class  PO  Certificates will  equal  the purchase  price  paid by  the purchaser
thereof, net  of any  expenses payable  by the  Depositor and  any  compensation
payable  to  any such  underwriter  or agent.  Any  underwriters or  agents that
participate in the distribution of the Class  X or Class PO Certificates may  be
deemed
 
                                      S-47
 
<PAGE>

<PAGE>
to  be 'underwriters' within the  meaning of the Securities  Act of 1933 and any
profit on the sale of such Certificates by them and any discounts,  commissions,
concessions  or other compensation received by any such underwriter or agent may
be deemed to be underwriting discounts and commissions under such Act.
 
                                    EXPERTS
 
     The consolidated balance  sheets of Financial  Security Assurance Inc.  and
Subsidiaries  as  of December  31, 1996  and 1995  and the  related consolidated
statements of income, changes in shareholder's equity and cash flows for each of
the three years in the period ended December 31, 1996, incorporated by reference
in this Prospectus Supplement, have been incorporated herein in reliance on  the
report  of  Coopers  & Lybrand  L.L.P.,  independent accountants,  given  on the
authority of that firm as experts in accounting and auditing.
 
                                 LEGAL MATTERS
 
     The validity  of the  Certificates, including  certain federal  income  tax
consequences  with respect  thereto, will  be passed  upon for  the Depositor by
Brown & Wood LLP, New York, New York.  Stroock & Stroock & Lavan LLP, New  York,
New York, will pass upon certain legal matters on behalf of the Underwriters.
 
                                    RATINGS
 
     It  is a condition to the issuance  of the Senior Certificates that they be
rated Aaa  by Moody's  Investors Service,  Inc. ('Moody's')  and AAA  by Duff  &
Phelps  Credit Rating  Company ('DCR'  and, together  with Moody's,  the 'Rating
Agencies'). It is  a condition to  the issuance of  the Class M,  Class B-1  and
Class  B-2 Certificates that they be rated at least AA, A and BBB, respectively,
by DCR.
 
     The ratings  assigned  by  Moody's to  mortgage  pass-through  certificates
address the likelihood of the receipt of all distributions on the mortgage loans
by  the related certificateholders  under the agreements  pursuant to which such
certificates are  issued. Moody's  ratings take  into consideration  the  credit
quality  of the related  mortgage pool, including  any credit support providers,
structural and legal aspects associated  with such certificates, and the  extent
to  which  the payment  stream  on the  mortgage pool  is  adequate to  make the
payments required by such certificates. Moody's ratings on such certificates  do
not,  however, constitute a statement regarding  frequency of prepayments of the
mortgage loans.
 
     The ratings assigned by DCR  to mortgage pass-through certificates  address
the  likelihood of  the receipt  by certificateholders  of all  distributions to
which they are entitled under  the transaction structure. DCR's ratings  reflect
its  analysis of  the riskiness of  the mortgage  loans and its  analysis of the
structure of the  transaction as  set forth  in the  operative documents.  DCR's
ratings  do not  address the effect  on the certificates'  yield attributable to
prepayments or recoveries on the underlying mortgage loans. Further, the  rating
on the Class X Certificates does not address whether investors will recoup their
initial investment. The rating assigned by DCR to the Class PO Certificates only
addresses  the return of  its Class Certificate Balance.  The rating assigned by
DCR to  the  Class A-R  Certificates  only addresses  the  return of  its  Class
Certificate Balance and interest thereon at its Pass-Through Rate.
 
     The  ratings of the Rating Agencies do not address the possibility that, as
a result of principal prepayments,  Certificateholders may receive a lower  than
anticipated yield.
 
     The  security  ratings  assigned  to  the  Offered  Certificates  should be
evaluated independently from  similar ratings  on other types  of securities.  A
security  rating is not a recommendation to buy, sell or hold securities and may
be subject to revision or withdrawal at any time by the Rating Agencies.
 
     The Depositor has not requested a rating of the Offered Certificates by any
rating agency  other  than the  Rating  Agencies;  there can  be  no  assurance,
however,   as  to  whether  any  other  rating  agency  will  rate  the  Offered
Certificates or, if it does, what rating would be assigned by such other  rating
agency.  The  rating  assigned  by  such  other  rating  agency  to  the Offered
Certificates could be lower than the  respective ratings assigned by the  Rating
Agencies.
 
                                      S-48
 
<PAGE>

<PAGE>
                          PRINCIPAL BALANCE SCHEDULES
 
     The  Principal Balance  Schedules have  been prepared  on the  basis of the
Structuring Assumptions and the assumption that the Mortgage Loans prepay at the
approximate constant levels set forth in the following table:
 
<TABLE>
<CAPTION>
  PRINCIPAL BALANCE
      SCHEDULES
     REFERENCES                RELATED CLASSES           SPA RANGES OR LEVELS
- ---------------------    ---------------------------    ----------------------
 
<S>                      <C>                            <C>
Planned Balances         Planned Principal Classes      Between 100% and 300%
Targeted Balances        Targeted Principal Classes              235%
</TABLE>
 
     There is no  assurance that the  principal balances of  the Classes  listed
above will conform on any Distribution Date to the applicable balances specified
for  such Distribution Date  in the Principal Balance  Schedules herein, or that
distributions of  principal  on the  related  Class will  begin  or end  on  the
respective Distribution Date specified therein. Because any excess of the amount
available  for distribution  of principal of  such Classes  for any Distribution
Date over the amount necessary to  reduce the principal balances of the  Planned
Principal  Classes and Targeted Principal  Classes to their respective scheduled
balances will be distributed, the ability to so reduce the principal balances of
such Classes will not  be enhanced by  the averaging of  high and low  principal
payments  as might be the  case if any such excess  amounts were held for future
application and not distributed monthly. In addition, even if prepayments remain
within the applicable range or level  specified above, the amount available  for
distribution  of  principal of  such  Classes on  any  Distribution Date  may be
insufficient to  reduce  the Planned  Principal  Classes or  Targeted  Principal
Classes  to their respective balances if prepayments  do not occur at a constant
percentage of SPA. This result could  occur, for example, if principal  payments
on  the Mortgage  Loans initially  occur at a  relatively fast  rate within such
range and subsequently occur at a  significantly slower rate within such  range.
Moreover,  because of  the diverse remaining  terms to maturity  of the Mortgage
Loans, the Planned Principal Classes and the Targeted Principal Classes may  not
be  reduced to their respective scheduled balances, even if prepayments occur at
a constant level within the applicable range or at the rate specified above.
 
                                      S-49
 
<PAGE>

<PAGE>
                          PRINCIPAL BALANCE SCHEDULES
<TABLE>
<CAPTION>
                                     CLASS A-1        CLASS A-2        CLASS A-5        CLASS A-8        CLASS A-9
                                   CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES
                                      PLANNED          PLANNED          PLANNED          PLANNED          PLANNED
       DISTRIBUTION DATE              BALANCE          BALANCE          BALANCE          BALANCE          BALANCE
- --------------------------------   -------------    -------------    -------------    -------------    -------------

<S>                                <C>              <C>              <C>              <C>              <C>
May 1997........................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
June 1997.......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
July 1997.......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
August 1997.....................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
September 1997..................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
October 1997....................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
November 1997...................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
December 1997...................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
January 1998....................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
February 1998...................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
March 1998......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
April 1998......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
May 1998........................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
June 1998.......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
July 1998.......................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
August 1998.....................   25,844,000.00    22,000,000.00    15,632,000.00    8,500,000.00     15,000,000.00
September 1998..................   25,131,739.23    22,000,000.00    15,469,153.44    8,500,000.00     15,000,000.00
October 1998....................   24,387,662.98    22,000,000.00    15,299,032.81    8,500,000.00     15,000,000.00
November 1998...................   23,612,100.07    22,000,000.00    15,121,713.27    8,500,000.00     15,000,000.00
December 1998...................   22,805,395.64    22,000,000.00    14,937,273.75    8,500,000.00     15,000,000.00
January 1999....................   21,967,910.84    22,000,000.00    14,745,796.81    8,500,000.00     15,000,000.00
February 1999...................   21,100,022.68    22,000,000.00    14,547,368.64    8,500,000.00     15,000,000.00
March 1999......................   20,202,123.67    22,000,000.00    14,342,078.99    8,500,000.00     15,000,000.00
April 1999......................   19,274,621.64    22,000,000.00    14,130,021.11    8,500,000.00     15,000,000.00
May 1999........................   18,317,939.37    22,000,000.00    13,911,291.65    8,500,000.00     15,000,000.00
June 1999.......................   17,332,514.35    22,000,000.00    13,685,990.64    8,500,000.00     15,000,000.00
July 1999.......................   16,318,798.43    22,000,000.00    13,454,221.39    8,500,000.00     15,000,000.00
August 1999.....................   15,277,257.50    22,000,000.00    13,216,090.41    8,500,000.00     15,000,000.00
September 1999..................   14,208,371.17    22,000,000.00    12,971,707.36    8,500,000.00     15,000,000.00
October 1999....................   13,145,218.55    22,000,000.00    12,728,635.23    8,500,000.00     15,000,000.00
November 1999...................   12,087,772.95    22,000,000.00    12,486,867.92    8,500,000.00     15,000,000.00
December 1999...................   11,036,007.85    22,000,000.00    12,246,399.35    8,500,000.00     15,000,000.00
January 2000....................    9,989,896.88    22,000,000.00    12,007,223.51    8,500,000.00     15,000,000.00
February 2000...................    8,949,413.82    22,000,000.00    11,769,334.40    8,500,000.00     15,000,000.00
March 2000......................    7,914,532.62    22,000,000.00    11,532,726.06    8,500,000.00     15,000,000.00
April 2000......................    6,885,227.39    22,000,000.00    11,297,392.57    8,500,000.00     15,000,000.00
May 2000........................    5,861,472.36    22,000,000.00    11,063,328.04    8,500,000.00     15,000,000.00
June 2000.......................    4,843,241.96    22,000,000.00    10,830,526.63    8,500,000.00     15,000,000.00
July 2000.......................    3,830,510.75    22,000,000.00    10,598,982.52    8,500,000.00     15,000,000.00
August 2000.....................    2,823,253.43    22,000,000.00    10,368,689.91    8,500,000.00     15,000,000.00
September 2000..................    1,821,444.88    22,000,000.00    10,139,643.08    8,500,000.00     15,000,000.00
October 2000....................      825,060.10    22,000,000.00     9,911,836.31    8,500,000.00     15,000,000.00
November 2000...................            0.00    21,834,074.28     9,685,263.91    8,500,000.00     15,000,000.00
December 2000...................            0.00    20,848,462.73     9,459,920.26    8,500,000.00     15,000,000.00
January 2001....................            0.00    19,868,200.92     9,235,799.73    8,500,000.00     15,000,000.00
February 2001...................            0.00    18,893,264.46     9,012,896.75    8,500,000.00     15,000,000.00
March 2001......................            0.00    17,923,629.12     8,791,205.79    8,500,000.00     15,000,000.00
April 2001......................            0.00    16,959,270.82     8,570,721.34    8,500,000.00     15,000,000.00
May 2001........................            0.00    16,000,165.61     8,351,437.91    8,500,000.00     15,000,000.00
June 2001.......................            0.00    15,046,289.71     8,133,350.08    8,500,000.00     15,000,000.00
July 2001.......................            0.00    14,097,619.46     7,916,452.44    8,500,000.00     15,000,000.00
August 2001.....................            0.00    13,154,131.37     7,700,739.61    8,500,000.00     15,000,000.00
September 2001..................            0.00    12,215,802.08     7,486,206.25    8,500,000.00     15,000,000.00
October 2001....................            0.00    11,282,608.38     7,272,847.06    8,500,000.00     15,000,000.00
November 2001...................            0.00    10,354,527.19     7,060,656.77    8,500,000.00     15,000,000.00
December 2001...................            0.00     9,431,535.60     6,849,630.12    8,500,000.00     15,000,000.00
January 2002....................            0.00     8,513,610.82     6,639,761.92    8,500,000.00     15,000,000.00
February 2002...................            0.00     7,600,730.21     6,431,046.98    8,500,000.00     15,000,000.00
March 2002......................            0.00     6,692,871.27     6,223,480.16    8,500,000.00     15,000,000.00
 

 
<CAPTION>
                                    CLASS A-6       CLASS A-10
                                  CERTIFICATES     CERTIFICATES
                                    TARGETED         TARGETED
       DISTRIBUTION DATE             BALANCE          BALANCE
- --------------------------------  -------------    -------------
<S>                                <C>             <C>
May 1997........................  15,274,599.25    63,443,487.27
June 1997.......................  15,202,244.79    63,152,792.02
July 1997.......................  15,112,949.95    62,794,036.16
August 1997.....................  15,006,748.27    62,367,354.45
September 1997..................  14,883,693.60    61,872,963.25
October 1997....................  14,743,860.18    61,311,160.79
November 1997...................  14,587,342.61    60,682,327.19
December 1997...................  14,414,255.89    59,986,924.42
January 1998....................  14,224,735.27    59,225,495.96
February 1998...................  14,018,936.24    58,398,666.46
March 1998......................  13,797,034.32    57,507,141.10
April 1998......................  13,559,224.90    56,551,704.84
May 1998........................  13,305,722.97    55,533,221.55
June 1998.......................  13,036,762.93    54,452,632.88
July 1998.......................  12,752,598.20    53,310,957.04
August 1998.....................  12,453,500.93    52,109,287.37
September 1998..................  12,288,731.83    51,447,301.96
October 1998....................  12,116,283.23    50,754,462.97
November 1998...................  11,936,412.12    50,031,802.88
December 1998...................  11,749,388.99    49,280,408.49
January 1999....................  11,555,497.38    48,501,418.88
February 1999...................  11,355,033.30    47,696,023.35
March 1999......................  11,148,304.71    46,865,459.19
April 1999......................  10,935,630.94    46,011,009.31
May 1999........................  10,717,342.04    45,133,999.81
June 1999.......................  10,493,778.18    44,235,797.37
July 1999.......................  10,265,288.99    43,317,806.62
August 1999.....................  10,032,232.83    42,381,467.33
September 1999..................   9,794,976.09    41,428,251.59
October 1999....................   9,562,650.78    40,494,848.64
November 1999...................   9,335,185.39    39,580,971.15
December 1999...................   9,112,509.35    38,686,335.65
January 2000....................   8,894,553.05    37,810,662.41
February 2000...................   8,681,247.78    36,953,675.42
March 2000......................   8,472,525.76    36,115,102.36
April 2000......................   8,268,320.12    35,294,674.53
May 2000........................   8,068,564.86    34,492,126.79
June 2000.......................   7,873,194.87    33,707,197.57
July 2000.......................   7,682,145.91    32,939,628.77
August 2000.....................   7,495,354.60    32,189,165.71
September 2000..................   7,312,758.40    31,455,557.15
October 2000....................   7,134,295.60    30,738,555.17
November 2000...................   6,959,905.32    30,037,915.19
December 2000...................   6,789,527.50    29,353,395.88
January 2001....................   6,623,102.87    28,684,759.15
February 2001...................   6,460,572.97    28,031,770.07
March 2001......................   6,301,880.11    27,394,196.88
April 2001......................   6,146,967.37    26,771,810.92
May 2001........................   5,995,778.60    26,164,386.59
June 2001.......................   5,848,258.40    25,571,701.31
July 2001.......................   5,704,352.11    24,993,535.48
August 2001.....................   5,564,005.81    24,429,672.47
September 2001..................   5,427,166.30    23,879,898.53
October 2001....................   5,293,781.10    23,344,002.80
November 2001...................   5,163,798.42    22,821,777.25
December 2001...................   5,037,167.19    22,313,016.63
January 2002....................   4,913,837.01    21,817,518.49
February 2002...................   4,793,758.15    21,335,083.06
March 2002......................   4,676,881.57    20,865,513.30
</TABLE>
 
                                                  (table continued on next page)
 
                                      S-50
 
<PAGE>

<PAGE>
(table continued from previous page)
<TABLE>
<CAPTION>
                                     CLASS A-1        CLASS A-2        CLASS A-5        CLASS A-8        CLASS A-9
                                   CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES
                                      PLANNED          PLANNED          PLANNED          PLANNED          PLANNED
       DISTRIBUTION DATE              BALANCE          BALANCE          BALANCE          BALANCE          BALANCE
- --------------------------------   -------------    -------------    -------------    -------------    -------------
 
<S>                                <C>              <C>              <C>              <C>              <C>
April 2002......................            0.00     5,790,011.64     6,017,056.35    8,500,000.00     15,000,000.00
May 2002........................            0.00     4,964,051.56     5,828,214.34    8,500,000.00     15,000,000.00
June 2002.......................            0.00     4,142,782.48     5,640,444.85    8,500,000.00     15,000,000.00
July 2002.......................            0.00     3,326,181.44     5,453,742.63    8,500,000.00     15,000,000.00
August 2002.....................            0.00     2,514,225.61     5,268,102.46    8,500,000.00     15,000,000.00
September 2002..................            0.00     1,706,892.29     5,083,519.15    8,500,000.00     15,000,000.00
October 2002....................            0.00       904,158.91     4,899,987.54    8,500,000.00     15,000,000.00
November 2002...................            0.00       106,003.04     4,717,502.50    8,500,000.00     15,000,000.00
December 2002...................            0.00             0.00     4,536,058.92    7,812,402.34     15,000,000.00
January 2003....................            0.00             0.00     4,355,651.74    7,023,334.63     15,000,000.00
February 2003...................            0.00             0.00     4,176,275.91    6,238,777.84     15,000,000.00
March 2003......................            0.00             0.00     3,997,926.40    5,458,710.02     15,000,000.00
April 2003......................            0.00             0.00     3,820,598.23    4,683,109.36     15,000,000.00
May 2003........................            0.00             0.00     3,672,447.04    3,935,176.11     15,000,000.00
June 2003.......................            0.00             0.00     3,527,365.87    3,191,528.93     15,000,000.00
July 2003.......................            0.00             0.00     3,385,299.79    2,452,146.34     15,000,000.00
August 2003.....................            0.00             0.00     3,246,194.77    1,717,006.99     15,000,000.00
September 2003..................            0.00             0.00     3,109,997.73      986,089.63     15,000,000.00
October 2003....................            0.00             0.00     2,976,656.46      259,373.16     15,000,000.00
November 2003...................            0.00             0.00     2,846,119.67            0.00     14,536,836.55
December 2003...................            0.00             0.00     2,718,336.93            0.00     13,818,458.93
January 2004....................            0.00             0.00     2,593,258.67            0.00     13,104,219.52
February 2004...................            0.00             0.00     2,470,836.18            0.00     12,394,097.67
March 2004......................            0.00             0.00     2,351,021.56            0.00     11,688,072.83
April 2004......................            0.00             0.00     2,233,767.75            0.00     10,986,124.58
May 2004........................            0.00             0.00     2,139,142.08            0.00     10,332,882.98
June 2004.......................            0.00             0.00     2,046,604.27            0.00      9,693,416.41
July 2004.......................            0.00             0.00     1,956,114.47            0.00      9,068,102.29
August 2004.....................            0.00             0.00     1,867,633.56            0.00      8,456,670.23
September 2004..................            0.00             0.00     1,781,123.10            0.00      7,858,854.64
October 2004....................            0.00             0.00     1,696,545.35            0.00      7,274,394.68
November 2004...................            0.00             0.00     1,613,863.23            0.00      6,703,034.17
December 2004...................            0.00             0.00     1,533,040.33            0.00      6,144,521.49
January 2005....................            0.00             0.00     1,454,040.89            0.00      5,598,609.53
February 2005...................            0.00             0.00     1,376,829.79            0.00      5,065,055.58
March 2005......................            0.00             0.00     1,301,372.54            0.00      4,543,621.29
April 2005......................            0.00             0.00     1,227,635.27            0.00      4,034,072.56
May 2005........................            0.00             0.00     1,173,161.42            0.00      3,657,640.48
June 2005.......................            0.00             0.00     1,119,888.79            0.00      3,289,509.18
July 2005.......................            0.00             0.00     1,067,793.50            0.00      2,929,513.62
August 2005.....................            0.00             0.00     1,016,852.09            0.00      2,577,491.85
September 2005..................            0.00             0.00       967,041.58            0.00      2,233,284.93
October 2005....................            0.00             0.00       918,339.40            0.00      1,896,736.91
November 2005...................            0.00             0.00       870,723.40            0.00      1,567,694.76
December 2005...................            0.00             0.00       824,171.85            0.00      1,246,008.32
January 2006....................            0.00             0.00       778,663.43            0.00        931,530.24
February 2006...................            0.00             0.00       734,177.22            0.00        624,115.95
March 2006......................            0.00             0.00       690,692.68            0.00        323,623.57
April 2006......................            0.00             0.00       648,189.68            0.00         29,913.91
May 2006........................            0.00             0.00       621,384.30            0.00              0.00
June 2006.......................            0.00             0.00       595,040.89            0.00              0.00
July 2006.......................            0.00             0.00       569,151.65            0.00              0.00
August 2006.....................            0.00             0.00       543,708.92            0.00              0.00
September 2006..................            0.00             0.00       518,705.16            0.00              0.00
October 2006....................            0.00             0.00       494,132.95            0.00              0.00
November 2006...................            0.00             0.00       469,985.02            0.00              0.00
December 2006...................            0.00             0.00       446,254.18            0.00              0.00
January 2007....................            0.00             0.00       422,933.41            0.00              0.00
February 2007...................            0.00             0.00       400,015.75            0.00              0.00
 

 
<CAPTION>
                                    CLASS A-6       CLASS A-10
                                  CERTIFICATES     CERTIFICATES
                                    TARGETED         TARGETED
       DISTRIBUTION DATE             BALANCE          BALANCE
- --------------------------------  -------------    -------------
<S>                                <C>             <C>
April 2002......................   4,563,158.89    20,408,614.80
May 2002........................   4,474,311.19    20,051,655.38
June 2002.......................   4,388,360.54    19,706,335.31
July 2002.......................   4,305,260.88    19,372,469.55
August 2002.....................   4,224,966.77    19,049,875.52
September 2002..................   4,147,433.40    18,738,373.16
October 2002....................   4,072,616.54    18,437,784.82
November 2002...................   4,000,472.58    18,147,935.29
December 2002...................   3,930,958.51    17,868,651.72
January 2003....................   3,864,031.88    17,599,763.61
February 2003...................   3,799,650.84    17,341,102.79
March 2003......................   3,737,774.09    17,092,503.36
April 2003......................   3,678,360.91    16,853,801.71
May 2003........................   3,607,180.57    16,651,809.14
June 2003.......................   3,536,371.96    16,458,991.75
July 2003.......................   3,465,942.52    16,275,195.60
August 2003.....................   3,395,899.43    16,100,268.89
September 2003..................   3,326,249.54    15,934,061.88
October 2003....................   3,256,999.43    15,776,426.94
November 2003...................   3,188,155.41    15,627,218.45
December 2003...................   3,119,723.47    15,486,292.84
January 2004....................   3,051,709.40    15,353,508.49
February 2004...................   2,984,118.67    15,228,725.78
March 2004......................   2,916,956.53    15,111,807.01
April 2004......................   2,850,227.96    15,002,616.40
May 2004........................   2,787,001.79    14,949,734.53
June 2004.......................   2,724,242.20    14,894,825.55
July 2004.......................   2,661,952.08    14,837,437.58
August 2004.....................   2,600,134.14    14,777,664.88
September 2004..................   2,538,790.90    14,715,599.47
October 2004....................   2,477,924.67    14,651,331.12
November 2004...................   2,417,537.59    14,584,947.43
December 2004...................   2,357,631.62    14,516,533.87
January 2005....................   2,298,208.53    14,446,173.82
February 2005...................   2,261,351.18    14,353,670.45
March 2005......................   2,243,776.09    14,242,110.49
April 2005......................   2,226,027.47    14,129,449.00
May 2005........................   2,205,137.07    13,996,844.74
June 2005.......................   2,184,240.54    13,864,201.52
July 2005.......................   2,163,344.01    13,731,558.35
August 2005.....................   2,142,453.45    13,598,953.02
September 2005..................   2,121,574.61    13,466,422.13
October 2005....................   2,100,713.08    13,334,001.10
November 2005...................   2,079,874.27    13,201,724.24
December 2005...................   2,059,063.39    13,069,624.73
January 2006....................   2,038,285.51    12,937,734.68
February 2006...................   2,017,545.52    12,806,085.12
March 2006......................   1,996,848.14    12,674,706.06
April 2006......................   1,976,197.95    12,543,626.50
May 2006........................   1,953,516.73    12,269,139.70
June 2006.......................   1,931,037.42    11,973,480.52
July 2006.......................   1,908,759.13    11,681,734.52
August 2006.....................   1,886,680.91    11,393,851.31
September 2006..................   1,864,801.84    11,109,781.12
October 2006....................   1,843,120.94    10,829,474.84
November 2006...................   1,821,637.25    10,552,883.98
December 2006...................   1,800,349.78    10,279,960.65
January 2007....................   1,779,257.54    10,010,657.59
February 2007...................   1,758,359.50     9,744,928.13
 
                                                  (table continued on next page)
 
                                      S-51
 
<PAGE>

<PAGE>
(table continued from previous page)
                                     CLASS A-1        CLASS A-2        CLASS A-5        CLASS A-8        CLASS A-9
                                   CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES
                                      PLANNED          PLANNED          PLANNED          PLANNED          PLANNED
       DISTRIBUTION DATE              BALANCE          BALANCE          BALANCE          BALANCE          BALANCE
- --------------------------------   -------------    -------------    -------------    -------------    -------------
<S>                                <C>              <C>              <C>              <C>              <C>
March 2007......................            0.00             0.00       377,494.41            0.00              0.00
April 2007......................            0.00             0.00       355,362.68            0.00              0.00
May 2007........................            0.00             0.00       333,613.97            0.00              0.00
June 2007.......................            0.00             0.00       312,241.81            0.00              0.00
July 2007.......................            0.00             0.00       291,239.82            0.00              0.00
August 2007.....................            0.00             0.00       270,601.74            0.00              0.00
September 2007..................            0.00             0.00       250,321.42            0.00              0.00
October 2007....................            0.00             0.00       230,392.78            0.00              0.00
November 2007...................            0.00             0.00       210,809.89            0.00              0.00
December 2007...................            0.00             0.00       191,566.89            0.00              0.00
January 2008....................            0.00             0.00       172,658.00            0.00              0.00
February 2008...................            0.00             0.00       154,077.59            0.00              0.00
March 2008......................            0.00             0.00       135,820.07            0.00              0.00
April 2008......................            0.00             0.00       117,879.98            0.00              0.00
May 2008........................            0.00             0.00       100,251.93            0.00              0.00
June 2008.......................            0.00             0.00        82,930.63            0.00              0.00
July 2008.......................            0.00             0.00        65,910.87            0.00              0.00
August 2008.....................            0.00             0.00        49,187.55            0.00              0.00
September 2008..................            0.00             0.00        32,755.62            0.00              0.00
October 2008....................            0.00             0.00        16,610.15            0.00              0.00
November 2008...................            0.00             0.00           746.26            0.00              0.00
December 2008...................            0.00             0.00             0.00            0.00              0.00
January 2009....................            0.00             0.00             0.00            0.00              0.00
February 2009...................            0.00             0.00             0.00            0.00              0.00
March 2009......................            0.00             0.00             0.00            0.00              0.00
April 2009......................            0.00             0.00             0.00            0.00              0.00
May 2009........................            0.00             0.00             0.00            0.00              0.00
June 2009.......................            0.00             0.00             0.00            0.00              0.00
July 2009.......................            0.00             0.00             0.00            0.00              0.00
August 2009.....................            0.00             0.00             0.00            0.00              0.00
September 2009..................            0.00             0.00             0.00            0.00              0.00
October 2009....................            0.00             0.00             0.00            0.00              0.00
November 2009...................            0.00             0.00             0.00            0.00              0.00
December 2009...................            0.00             0.00             0.00            0.00              0.00
January 2010....................            0.00             0.00             0.00            0.00              0.00
February 2010...................            0.00             0.00             0.00            0.00              0.00
March 2010......................            0.00             0.00             0.00            0.00              0.00
April 2010......................            0.00             0.00             0.00            0.00              0.00
May 2010........................            0.00             0.00             0.00            0.00              0.00
June 2010.......................            0.00             0.00             0.00            0.00              0.00
July 2010.......................            0.00             0.00             0.00            0.00              0.00
August 2010.....................            0.00             0.00             0.00            0.00              0.00
September 2010..................            0.00             0.00             0.00            0.00              0.00
October 2010....................            0.00             0.00             0.00            0.00              0.00
November 2010...................            0.00             0.00             0.00            0.00              0.00
December 2010...................            0.00             0.00             0.00            0.00              0.00
January 2011....................            0.00             0.00             0.00            0.00              0.00
February 2011...................            0.00             0.00             0.00            0.00              0.00
March 2011......................            0.00             0.00             0.00            0.00              0.00
April 2011......................            0.00             0.00             0.00            0.00              0.00
May 2011........................            0.00             0.00             0.00            0.00              0.00
June 2011.......................            0.00             0.00             0.00            0.00              0.00
July 2011.......................            0.00             0.00             0.00            0.00              0.00
August 2011.....................            0.00             0.00             0.00            0.00              0.00
September 2011..................            0.00             0.00             0.00            0.00              0.00
October 2011....................            0.00             0.00             0.00            0.00              0.00
November 2011...................            0.00             0.00             0.00            0.00              0.00
December 2011...................            0.00             0.00             0.00            0.00              0.00
January 2012....................            0.00             0.00             0.00            0.00              0.00
 
 
<CAPTION>
                                    CLASS A-6       CLASS A-10
                                  CERTIFICATES     CERTIFICATES
                                    TARGETED         TARGETED
       DISTRIBUTION DATE             BALANCE          BALANCE
- --------------------------------  -------------    -------------
<S>                                <C>             <C>

March 2007......................   1,737,654.64     9,482,726.20
April 2007......................   1,717,141.93     9,224,006.31
May 2007........................   1,696,820.32     8,968,723.55
June 2007.......................   1,676,688.75     8,716,833.59
July 2007.......................   1,656,746.15     8,468,292.65
August 2007.....................   1,636,991.45     8,223,057.52
September 2007..................   1,617,423.55     7,981,085.54
October 2007....................   1,598,041.37     7,742,334.58
November 2007...................   1,578,843.79     7,506,763.06
December 2007...................   1,559,829.71     7,274,329.93
January 2008....................   1,540,998.00     7,044,994.65
February 2008...................   1,522,347.55     6,818,717.20
March 2008......................   1,503,877.22     6,595,458.09
April 2008......................   1,485,585.88     6,375,178.30
May 2008........................   1,467,472.38     6,157,839.34
June 2008.......................   1,449,535.58     5,943,403.18
July 2008.......................   1,431,774.31     5,731,832.29
August 2008.....................   1,414,187.44     5,523,089.63
September 2008..................   1,396,773.78     5,317,138.62
October 2008....................   1,379,532.20     5,113,943.13
November 2008...................   1,362,461.50     4,913,467.51
December 2008...................   1,331,984.30     4,715,676.57
January 2009....................   1,301,241.91     4,520,535.56
February 2009...................   1,270,911.57     4,328,010.16
March 2009......................   1,240,987.96     4,138,066.52
April 2009......................   1,211,465.81     3,950,671.18
May 2009........................   1,182,339.92     3,765,791.14
June 2009.......................   1,153,605.16     3,583,393.81
July 2009.......................   1,125,256.45     3,403,447.01
August 2009.....................   1,097,288.79     3,225,918.99
September 2009..................   1,069,697.24     3,050,778.37
October 2009....................   1,042,476.93     2,877,994.20
November 2009...................   1,015,623.03     2,707,535.93
December 2009...................     989,130.80     2,539,373.37
January 2010....................     962,995.55     2,373,476.73
February 2010...................     937,212.63     2,209,816.61
March 2010......................     911,777.48     2,048,363.98
April 2010......................     886,685.58     1,889,090.17
May 2010........................     861,932.47     1,731,966.89
June 2010.......................     837,513.76     1,576,966.20
July 2010.......................     813,425.09     1,424,060.52
August 2010.....................     789,662.18     1,273,222.63
September 2010..................     766,220.79     1,124,425.65
October 2010....................     743,096.75       977,643.05
November 2010...................     720,285.92       832,848.62
December 2010...................     697,784.24       690,016.51
January 2011....................     675,587.67       549,121.19
February 2011...................     653,692.26       410,137.46
March 2011......................     632,094.08       273,040.42
April 2011......................     610,789.25       137,805.53
May 2011........................     589,773.97         4,408.52
June 2011.......................     569,044.45             0.00
July 2011.......................     548,596.98             0.00
August 2011.....................     528,427.88             0.00
September 2011..................     508,533.52             0.00
October 2011....................     488,910.31             0.00
November 2011...................     469,554.73             0.00
December 2011...................     450,463.28             0.00
January 2012....................     431,632.52             0.00
 
                                                  (table continued on next page)
 
                                      S-52
 
<PAGE>

<PAGE>
(table continued from previous page)

</TABLE>
<TABLE>
<CAPTION>
                                     CLASS A-1        CLASS A-2        CLASS A-5        CLASS A-8        CLASS A-9
                                   CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES     CERTIFICATES
                                      PLANNED          PLANNED          PLANNED          PLANNED          PLANNED
       DISTRIBUTION DATE              BALANCE          BALANCE          BALANCE          BALANCE          BALANCE
- --------------------------------   -------------    -------------    -------------    -------------    -------------
 
<S>                                <C>              <C>              <C>              <C>              <C>
February 2012...................            0.00             0.00             0.00            0.00              0.00
March 2012......................            0.00             0.00             0.00            0.00              0.00
April 2012......................            0.00             0.00             0.00            0.00              0.00
May 2012........................            0.00             0.00             0.00            0.00              0.00
June 2012.......................            0.00             0.00             0.00            0.00              0.00
July 2012.......................            0.00             0.00             0.00            0.00              0.00
August 2012.....................            0.00             0.00             0.00            0.00              0.00
September 2012..................            0.00             0.00             0.00            0.00              0.00
October 2012....................            0.00             0.00             0.00            0.00              0.00
November 2012...................            0.00             0.00             0.00            0.00              0.00
December 2012...................            0.00             0.00             0.00            0.00              0.00
January 2013....................            0.00             0.00             0.00            0.00              0.00
February 2013...................            0.00             0.00             0.00            0.00              0.00
March 2013......................            0.00             0.00             0.00            0.00              0.00
April 2013......................            0.00             0.00             0.00            0.00              0.00
May 2013........................            0.00             0.00             0.00            0.00              0.00
June 2013.......................            0.00             0.00             0.00            0.00              0.00
July 2013.......................            0.00             0.00             0.00            0.00              0.00
August 2013.....................            0.00             0.00             0.00            0.00              0.00
September 2013..................            0.00             0.00             0.00            0.00              0.00
October 2013....................            0.00             0.00             0.00            0.00              0.00
November 2013...................            0.00             0.00             0.00            0.00              0.00
December 2013...................            0.00             0.00             0.00            0.00              0.00
January 2014....................            0.00             0.00             0.00            0.00              0.00
February 2014...................            0.00             0.00             0.00            0.00              0.00
March 2014......................            0.00             0.00             0.00            0.00              0.00
April 2014......................            0.00             0.00             0.00            0.00              0.00
May 2014 and thereafter.........            0.00             0.00             0.00            0.00              0.00
 
<CAPTION>
                                    CLASS A-6       CLASS A-10
                                  CERTIFICATES     CERTIFICATES
                                    TARGETED         TARGETED
       DISTRIBUTION DATE             BALANCE          BALANCE
- --------------------------------  -------------    -------------
<S>                                <C>             <C>
</TABLE>
February 2012...................     413,059.03             0.00
March 2012......................     394,739.47             0.00
April 2012......................     376,670.52             0.00
May 2012........................     358,848.90             0.00
June 2012.......................     341,271.39             0.00
July 2012.......................     323,934.78             0.00
August 2012.....................     306,835.94             0.00
September 2012..................     289,971.75             0.00
October 2012....................     273,339.15             0.00
November 2012...................     256,935.11             0.00
December 2012...................     240,756.63             0.00
January 2013....................     224,800.76             0.00
February 2013...................     209,064.58             0.00
March 2013......................     193,545.23             0.00
April 2013......................     178,239.86             0.00
May 2013........................     163,145.66             0.00
June 2013.......................     148,259.87             0.00
July 2013.......................     133,579.75             0.00
August 2013.....................     119,102.61             0.00
September 2013..................     104,825.78             0.00
October 2013....................      90,746.63             0.00
November 2013...................      76,862.58             0.00
December 2013...................      63,171.05             0.00
January 2014....................      49,669.52             0.00
February 2014...................      36,355.50             0.00
March 2014......................      23,226.51             0.00
April 2014......................      10,280.12             0.00
May 2014 and thereafter.........           0.00             0.00
 
                                      S-53
 
<PAGE>

<PAGE>
                      [THIS PAGE INTENTIONALLY LEFT BLANK]


<PAGE>

<PAGE>
PROSPECTUS
 
                                   CWMBS, INC.
                                   Depositor
                       Mortgage Pass-Through Certificates
                              (Issuable in Series)
 
                         ------------------------------
 
    This   Prospectus  relates   to  Mortgage   Pass-Through  Certificates  (the
'Certificates'), which may  be sold  from time  to time  in one  or more  Series
(each,  a 'Series') by CWMBS, Inc. (the  'Depositor') on terms determined at the
time of  sale  and described  in  this  Prospectus and  the  related  Prospectus
Supplement. The Certificates of a Series will evidence beneficial ownership of a
trust  fund (a 'Trust Fund'). As specified in the related Prospectus Supplement,
the Trust  Fund for  a  Series of  Certificates  will include  certain  mortgage
related  assets (the  'Mortgage Assets') consisting  of (i)  first lien mortgage
loans (or  participation  interests  therein) secured  by  one-  to  four-family
residential properties ('Mortgage Loans'), (ii) mortgage pass-through securities
(the  'Agency  Securities')  issued  or guaranteed  by  the  Government National
Mortgage  Association  ('GNMA'),  the  Federal  National  Mortgage   Association
('FNMA')  or  the  Federal Home  Loan  Mortgage Corporation  ('FHLMC')  or (iii)
Private Mortgage-Backed Securities (defined herein). The Mortgage Assets will be
acquired by  the Depositor,  either directly  or indirectly,  from one  or  more
institutions  (each, a 'Seller'), which may  be affiliates of the Depositor, and
conveyed by the  Depositor to  the related  Trust Fund.  A Trust  Fund also  may
include  insurance  policies,  cash accounts,  reinvestment  income, guaranties,
letters of  credit  or other  assets  to the  extent  described in  the  related
Prospectus Supplement.
 
    Each  Series of  Certificates will  be issued in  one or  more classes. Each
class of  Certificates of  a  Series will  evidence  beneficial ownership  of  a
specified  percentage (which may  be 0%) or portion  of future interest payments
and a specified  percentage (which  may be 0%)  or portion  of future  principal
payments  on  the  Mortgage  Assets  in the  related  Trust  Fund.  A  Series of
Certificates may include one or more classes that are senior in right of payment
to one or more other classes of Certificates of such Series. One or more classes
of Certificates  of  a  Series  may be  entitled  to  receive  distributions  of
principal,  interest  or any  combination  thereof prior  to  one or  more other
classes of Certificates  of such  Series or  after the  occurrence of  specified
events, in each case as specified in the related Prospectus Supplement.
 
    Distributions  to holders of Certificates (the 'Certificateholders') will be
made monthly, quarterly,  semi-annually or at  such other intervals  and on  the
dates  specified  in the  related  Prospectus Supplement.  Distributions  on the
Certificates of a Series will be made from the assets of the related Trust  Fund
or  Funds or other assets  pledged for the benefit  of the Certificateholders as
specified in the related Prospectus Supplement.
 
    The Certificates of  any Series  will not be  insured or  guaranteed by  any
governmental  agency or  instrumentality or,  unless otherwise  specified in the
related Prospectus Supplement, by any  other person. Unless otherwise  specified
in the related Prospectus Supplement, the only obligations of the Depositor with
respect  to a Series  of Certificates will be  to obtain certain representations
and warranties from each  Seller and to  assign to the  Trustee for the  related
Series   of   Certificates  the   Depositor's  rights   with  respect   to  such
representations and warranties. The principal obligations of the Master Servicer
named in the related Prospectus Supplement with respect to the related Series of
Certificates will be limited to obligations pursuant to certain  representations
and    warranties    and    to    its    contractual    servicing   obligations,
including any  obligation it  may have  to advance  delinquent payments  on  the
Mortgage Assets in the related Trust Fund.
 
    The  yield on each  class of Certificates  of a Series  will be affected by,
among other things, the rate of payment of principal (including prepayments)  on
the  Mortgage Assets in the related Trust Fund and the timing of receipt of such
payments as described herein and in  the related Prospectus Supplement. A  Trust
Fund  may  be subject  to early  termination  under the  circumstances described
herein and in the related Prospectus Supplement.
 
    If specified in a Prospectus Supplement,  one or more elections may be  made
to  treat the related Trust Fund or specified portions thereof as a 'real estate
mortgage investment  conduit' ('REMIC')  for federal  income tax  purposes.  See
'Certain Federal Income Tax Consequences' herein.
 
                         ------------------------------
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
   EXCHANGE COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
     SECURITIES   AND   EXCHANGE   COMMISSION  OR   ANY   STATE  SECURITIES
       COMMISSION  PASSED  UPON   THE  ACCURACY  OR   ADEQUACY  OF   THIS
         PROSPECTUS   OR   THE  RELATED   PROSPECTUS   SUPPLEMENT.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                         ------------------------------
 
    Prior to issuance there will have been no market for the Certificates of any
Series, and  there  can  be  no  assurance  that  a  secondary  market  for  any
Certificates  will develop or, if  it does develop, that  it will continue. This
Prospectus may  not be  used to  consummate sales  of a  Series of  Certificates
unless accompanied by a Prospectus Supplement.
 
    Offers  of  the  Certificates may  be  made  through one  or  more different
methods, including offerings through underwriters, as more fully described under
'Method of Distribution' herein and in the related Prospectus Supplement.
 
September 9, 1996


<PAGE>

<PAGE>
     Until  90 days  after the date  of each Prospectus  Supplement, all dealers
effecting transactions in the securities covered by such Prospectus  Supplement,
whether  or not  participating in the  distribution thereof, may  be required to
deliver such Prospectus Supplement and this  Prospectus. This is in addition  to
the obligation of dealers to deliver a Prospectus and Prospectus Supplement when
acting   as  underwriters  and  with  respect  to  their  unsold  allotments  or
subscriptions.
 
                             PROSPECTUS SUPPLEMENT
 
     The Prospectus Supplement relating to the Certificates of each Series to be
offered hereunder  will, among  other things,  set forth  with respect  to  such
Certificates,  as  appropriate: (i)  a description  of the  class or  classes of
Certificates and  the related  Pass-Through Rate  or method  of determining  the
amount  of interest, if any,  to be passed through to  each such class; (ii) the
initial aggregate Certificate Balance of each class of Certificates included  in
such  Series, Distribution Dates relating to such Series and, if applicable, the
initial and final scheduled Distribution Dates for each class; (iii) information
as  to   the  assets   comprising  the   Trust  Fund,   including  the   general
characteristics  of the Mortgage Assets included therein and, if applicable, the
insurance, surety bonds, guaranties, letters  of credit or other instruments  or
agreements  included in the Trust Fund, and the amount and source of any Reserve
Fund; (iv) the circumstances, if any, under which the Trust Fund may be  subject
to  early termination; (v) the method used  to calculate the amount of principal
to be distributed with respect to each class of Certificates; (vi) the order  of
application  of distributions to each of the classes within such Series, whether
sequential, pro rata, or otherwise; (vii) the Distribution Dates with respect to
such  Series;  (viii)  additional  information  with  respect  to  the  plan  of
distribution of such Certificates; (ix) whether one or more REMIC elections will
be made and designation of the regular interests and residual interests; (x) the
aggregate  original  percentage  ownership  interest in  the  Trust  Fund  to be
evidenced by each class of Certificates;  (xi) information as to the nature  and
extent  of  subordination with  respect  to any  class  of Certificates  that is
subordinate in right of payment to any other class; and (xii) information as  to
the Seller, the Master Servicer and the Trustee.
 
                             AVAILABLE INFORMATION
 
     The  Depositor has filed  with the Securities  and Exchange Commission (the
'Commission') a  Registration Statement  under the  Securities Act  of 1933,  as
amended,  with respect to the Certificates.  This Prospectus, which forms a part
of the Registration Statement,  and the Prospectus  Supplement relating to  each
Series  of Certificates contain summaries of the material terms of the documents
referred to herein and therein,  but do not contain  all of the information  set
forth in the Registration Statement pursuant to the Rules and Regulations of the
Commission.  For  further information,  reference is  made to  such Registration
Statement and the exhibits thereto. Such Registration Statement and exhibits can
be inspected and copied at prescribed  rates at the public reference  facilities
maintained  by the Commission at its Public Reference Section, 450 Fifth Street,
N.W., Washington, D.C. 20549,  and at its Regional  Offices located as  follows:
Chicago  Regional Office, 500 West Madison  Street, Chicago, Illinois 60661; and
New York Regional Office,  Seven World Trade Center,  New York, New York  10048.
The Commission maintains an Internet Web site that contains reports, information
statements   and  other   information  regarding   the  registrants   that  file
electronically with the Commission, including the Depositor. The address of such
Internet Web site is (http://www.sec.gov).
 
     No person  has been  authorized to  give  any information  or to  make  any
representation  other than those contained in this Prospectus and any Prospectus
Supplement with  respect hereto  and,  if given  or  made, such  information  or
representations  must not  be relied  upon. This  Prospectus and  any Prospectus
Supplement with  respect  hereto  do  not  constitute an  offer  to  sell  or  a
solicitation  of  an offer  to buy  any securities  other than  the Certificates
offered hereby and thereby nor an offer of the Certificates to any person in any
state or other jurisdiction in which such offer would be unlawful. The  delivery
of this Prospectus at any time does not imply that information herein is correct
as of any time subsequent to its date.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     All documents subsequently filed by or on behalf of the Trust Fund referred
to  in the  accompanying Prospectus Supplement  with the  Commission pursuant to
Section 13(a), 13(c), 14  or 15(d) of  the Securities Exchange  Act of 1934,  as
amended (the 'Exchange Act'), after the date of this Prospectus and prior to the
termination  of any offering of the Certificates issued by such Trust Fund shall
be deemed to be incorporated by reference in this Prospectus and to be a part of
this Prospectus from  the date of  the filing of  such documents. Any  statement
contained  in a document incorporated or  deemed to be incorporated by reference
herein shall be deemed  to be modified  or superseded for  all purposes of  this
Prospectus  to  the  extent  that  a  statement  contained  herein  (or  in  the
accompanying Prospectus Supplement) or in any other subsequently filed  document
which  also is or is deemed to be incorporated by reference modifies or replaces
such statement.  Any such  statement  so modified  or  superseded shall  not  be
deemed,  except  as so  modified or  superseded,  to constitute  a part  of this
Prospectus.
 
     The Trustee on behalf of any Trust Fund will provide without charge to each
person to whom this Prospectus is delivered,  on the written or oral request  of
such  person, a copy of any or all  of the documents referred to above that have
been or  may be  incorporated by  reference in  this Prospectus  (not  including
exhibits  to  the  information that  is  incorporated by  reference  unless such
exhibits are specifically  incorporated by reference  into the information  that
this Prospectus incorporates). Such requests should be directed to the Corporate
Trust Office of the Trustee specified in the accompanying Prospectus Supplement.
 
                                       2


<PAGE>

<PAGE>
                                SUMMARY OF TERMS
 
     This  summary is  qualified in  its entirety  by reference  to the detailed
information appearing elsewhere in this Prospectus and in the related Prospectus
Supplement with respect to the Series offered thereby. The Prospectus Supplement
for each Series  will specify the  extent (if any)  to which the  terms of  such
Series  or the related Trust Fund vary  from the description of the Certificates
and Trust Funds in general that is contained in this Prospectus.
 
<TABLE>
<S>                                         <C>
Title of Securities.......................  Mortgage Pass-Through Certificates (the 'Certificates'), issuable  in
                                            series  (each,  a  'Series').  Each Series  will  be  issued  under a
                                            separate pooling and servicing agreement (each, an 'Agreement') to be
                                            entered into with respect to each such Series.
Depositor.................................  CWMBS, Inc., a Delaware corporation (the 'Depositor').
Trustee...................................  The trustee (the 'Trustee') for  each Series of Certificates will  be
                                            specified  in the related Prospectus Supplement. See 'The Pooling and
                                            Servicing Agreement' herein for a description of the Trustee's rights
                                            and obligations.
Master Servicer...........................  The  entity  or  entities  named  as  master  servicer  (the  'Master
                                            Servicer')  in  the related  Prospectus Supplement,  which may  be an
                                            affiliate  of  the   Depositor.  See  'The   Pooling  and   Servicing
                                            Agreement  -- Certain Matters  Regarding the Master  Servicer and the
                                            Depositor' herein.
Seller....................................  The entity or entities named as seller (the 'Seller') in the  related
                                            Prospectus Supplement, which may be an affiliate of the Depositor.
Closing Date..............................  The  date (the  'Closing Date')  of initial  issuance of  a Series of
                                            Certificates, as specified in the related Prospectus Supplement.
Trust Fund................................  The trust fund for  a Series of Certificates  (each, a 'Trust  Fund')
                                            will  include certain mortgage related assets (the 'Mortgage Assets')
                                            consisting  of  (a)  first  lien  mortgage  loans  (or  participation
                                            interests   therein)  secured  by  one-  to  four-family  residential
                                            properties  (the   'Mortgage  Loans'),   (b)  mortgage   pass-through
                                            securities  issued or guaranteed by  the Government National Mortgage
                                            Association  ('GNMA'),  the  Federal  National  Mortgage  Association
                                            ('FNMA') or the Federal Home Loan Mortgage Corporation ('FHLMC') (the
                                            'Agency  Securities') or (c) other mortgage pass-through certificates
                                            or collateralized mortgage obligations (the 'Private  Mortgage-Backed
                                            Securities'),  together  with payments  in  respect of  such Mortgage
                                            Assets and certain other accounts, obligations or agreements, in each
                                            case as specified in the related Prospectus Supplement.
A. Mortgage Loans.........................  Unless otherwise  specified  in the  related  Prospectus  Supplement,
                                            Mortgage  Loans will  be secured by  first mortgage liens  on one- to
                                            four-family residential properties (each, a 'Mortgaged Property'). If
                                            so specified, the  Mortgage Loans may  include cooperative  apartment
                                            loans  ('Cooperative Loans') secured by  security interests in shares
                                            issued  by  private,  nonprofit,  cooperative  housing   corporations
                                            ('Cooperatives')  and in the related  proprietary leases or occupancy
                                            agreements granting  exclusive  rights to  occupy  specific  dwelling
                                            units in such Cooperatives' buildings. If so specified in the related
                                            Prospectus  Supplement, the Mortgage Assets of the related Trust Fund
                                            may include mortgage participation certificates evidencing  interests
                                            in  mortgage  loans. Such  mortgage loans  may be  conventional loans
                                            (i.e., loans that are not  insured or guaranteed by any  governmental
                                            agency),   insured  by  the  Federal  Housing  Authority  ('FHA')  or
                                            partially guaranteed by the
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                                            Veterans'  Administration  ('VA')   as  specified   in  the   related
                                            Prospectus Supplement.
B. General Attributes of
   Mortgage Loans.........................  The  payment terms of  the Mortgage Loans  to be included  in a Trust
                                            Fund will be described in  the related Prospectus Supplement and  may
                                            include  any  of the  following features  or combinations  thereof or
                                            other features described in the related Prospectus Supplement:
                                            (a) Interest may be payable at  a fixed rate, a rate adjustable  from
                                                time  to time in relation to an index (which will be specified in
                                                the related Prospectus Supplement),  a rate that  is fixed for  a
                                                period  of time or under certain circumstances and is followed by
                                                an adjustable rate,  a rate  that otherwise varies  from time  to
                                                time,  or a rate that is convertible from an adjustable rate to a
                                                fixed rate.  Changes to  an  adjustable rate  may be  subject  to
                                                periodic   limitations,  maximum   rates,  minimum   rates  or  a
                                                combination of such limitations. Accrued interest may be deferred
                                                and added to the principal of  a loan for such periods and  under
                                                such  circumstances as may be specified in the related Prospectus
                                                Supplement. The loan agreement or promissory note (the  'Mortgage
                                                Note')  in respect of a Mortgage Loan may provide for the payment
                                                of interest at a rate lower than the interest rate (the 'Mortgage
                                                Rate') specified in such  Mortgage Note for a  period of time  or
                                                for the life of the loan, and the amount of any difference may be
                                                contributed from funds supplied by a third party.
                                            (b) Principal  may be payable on a  level debt service basis to fully
                                                amortize the loan over its term,  may be calculated on the  basis
                                                of  an assumed amortization schedule that is significantly longer
                                                than the original term to maturity or on an interest rate that is
                                                different from the interest rate on the Mortgage Loan or may  not
                                                be  amortized  during  all or  a  portion of  the  original term.
                                                Payment of all or a substantial  portion of the principal may  be
                                                due  on  maturity  ('balloon  payments').  Principal  may include
                                                interest that  has  been  deferred and  added  to  the  principal
                                                balance of the Mortgage Loan.
                                            (c) Monthly  payments of principal and  interest may be fixed for the
                                                life of the loan, may increase over a specified period of time or
                                                may change  from period  to period.  Mortgage Loans  may  include
                                                limits  on  periodic  increases  or decreases  in  the  amount of
                                                monthly payments and  may include maximum  or minimum amounts  of
                                                monthly payments.
                                            (d) The  Mortgage Loans generally may be  prepaid at any time without
                                                payment of any  prepayment fee.  If so specified  in the  related
                                                Prospectus Supplement, prepayments of principal may be subject to
                                                a  prepayment fee, which  may be fixed  for the life  of any such
                                                Mortgage Loan or may decline over time, and may be prohibited for
                                                the life  of  any  such  Mortgage Loan  or  for  certain  periods
                                                ('lockout   periods').   Certain   Mortgage   Loans   may  permit
                                                prepayments after expiration of the applicable lockout period and
                                                may require the payment  of a prepayment  fee in connection  with
                                                any  such subsequent prepayment. Other  Mortgage Loans may permit
                                                prepayments without payment of a fee unless the prepayment occurs
                                                during specified  time periods.  The Mortgage  Loans may  include
                                                'due-on-sale' clauses which
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                                                permit  the mortgagee  to demand  payment of  the entire Mortgage
                                                Loan in  connection with  the sale  or certain  transfers of  the
                                                related Mortgaged Property. Other Mortgage Loans may be assumable
                                                by  persons meeting the then applicable underwriting standards of
                                                the Seller.
                                            (e) The  real  property  constituting security  for  repayment  of  a
                                                Mortgage  Loan may be located in any one of the fifty states, the
                                                District of Columbia, Guam, Puerto Rico or any other territory of
                                                the United  States. Unless  otherwise  specified in  the  related
                                                Prospectus  Supplement, all of the Mortgage Loans will be covered
                                                by standard hazard insurance policies insuring against losses due
                                                to fire  and various  other causes.  The Mortgage  Loans will  be
                                                covered  by  primary mortgage  insurance  policies to  the extent
                                                provided in the related Prospectus Supplement.
                                            All Mortgage Loans will have been purchased by the Depositor,  either
                                            directly or through an affiliate, from one or more Sellers.
C. Agency Securities......................  The  Agency  Securities evidenced  by a  Series of  Certificates will
                                            consist  of  (i)  mortgage  participation  certificates  issued   and
                                            guaranteed  as to  timely payment  of interest  and, unless otherwise
                                            specified in the related  Prospectus Supplement, ultimate payment  of
                                            principal  by  the  Federal Home  Loan  Mortgage  Corporation ('FHLMC
                                            Certificates'), (ii) certificates ('Guaranteed Mortgage  Pass-Through
                                            Certificates')   issued  and  guaranteed  as  to  timely  payment  of
                                            principal and interest by  the Federal National Mortgage  Association
                                            ('FNMA    Certificates'),    (iii)   fully    modified   pass-through
                                            mortgage-backed certificates  guaranteed  as  to  timely  payment  of
                                            principal   and   interest  by   the  Government   National  Mortgage
                                            Association  ('GNMA  Certificates'),  (iv)  stripped  mortgage-backed
                                            securities  representing an  undivided interest in  all or  a part of
                                            either  the   principal   distributions   (but   not   the   interest
                                            distributions)  or the interest distributions  (but not the principal
                                            distributions) or  in some  specified portion  of the  principal  and
                                            interest distributions (but not all of such distributions) on certain
                                            FHLMC,  FNMA or GNMA Certificates  and, unless otherwise specified in
                                            the related Prospectus Supplement, guaranteed  to the same extent  as
                                            the   underlying  securities,   (v)  another   type  of  pass-through
                                            certificate issued or guaranteed by GNMA, FNMA or FHLMC and described
                                            in the related Prospectus  Supplement or (vi)  a combination of  such
                                            Agency  Securities. All GNMA Certificates will  be backed by the full
                                            faith and credit of the United States. No FHLMC or FNMA  Certificates
                                            will  be backed, directly or indirectly, by the full faith and credit
                                            of the United States.
                                            The Agency Securities may  consist of pass-through securities  issued
                                            under FHLMC's Cash or Guarantor Program, the GNMA I Program, the GNMA
                                            II  Program or  another program  specified in  the related Prospectus
                                            Supplement.  The  payment  characteristics  of  the  mortgage   loans
                                            underlying  the Agency  Securities will  be described  in the related
                                            Prospectus Supplement.
D. Private Mortgage-Backed Securities.....  Private Mortgage-Backed  Securities may  include (a)  mortgage  pass-
                                            through  certificates  representing beneficial  interests  in certain
                                            mortgage loans or (b) collateralized mortgage obligations secured  by
                                            such  mortgage loans. Private  Mortgage-Backed Securities may include
                                            stripped  mortgage-backed   securities  representing   an   undivided
                                            interest   in   all   or   a   part   of   any   of   the   principal
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                                            distributions (but not  the interest distributions)  or the  interest
                                            distributions  (but  not  the  principal  distributions)  or  in some
                                            specified portion of  the principal and  interest distributions  (but
                                            not  all of such  distributions) on certain  mortgage loans. Although
                                            individual  mortgage  loans  underlying  a  Private   Mortgage-Backed
                                            Security  may be  insured or  guaranteed by  the United  States or an
                                            agency or instrumentality thereof, they need not be, and the  Private
                                            Mortgage-Backed  Securities  themselves  will not  be  so  insured or
                                            guaranteed. Unless  otherwise  specified in  the  related  Prospectus
                                            Supplement  relating  to a  Series of  Certificates, payments  on the
                                            Private Mortgage-Backed Securities  will be  distributed directly  to
                                            the  Trustee  as  registered owner  of  such  Private Mortgage-Backed
                                            Securities.  See   'The  Trust   Fund  --   Private   Mortgage-Backed
                                            Securities' herein.
                                            The  related Prospectus Supplement  for a Series  will specify, among
                                            other things, (i) the approximate aggregate principal amount and type
                                            of any Private Mortgage-Backed Securities to be included in the Trust
                                            Fund for such  Series; (ii) certain  characteristics of the  mortgage
                                            loans   that  comprise   the  underlying   assets  for   the  Private
                                            Mortgage-Backed Securities including (A) the payment features of such
                                            mortgage loans, (B)  the approximate aggregate  principal amount,  if
                                            known,   of  the  underlying  mortgage  loans  that  are  insured  or
                                            guaranteed by a governmental entity,  (C) the servicing fee or  range
                                            of  servicing fees  with respect  to the  mortgage loans  and (D) the
                                            minimum and  maximum  stated  maturities of  the  mortgage  loans  at
                                            origination;  (iii) the maximum  original term to  stated maturity of
                                            the Private  Mortgage-Backed Securities;  (iv) the  weighted  average
                                            term-to-stated  maturity of  the Private  Mortgage-Backed Securities;
                                            (v) the pass-through or  certificate rate or  ranges thereof for  the
                                            Private   Mortgage-Backed  Securities;  (vi)   the  weighted  average
                                            pass-through or  certificate  rate  of  the  Private  Mortgage-Backed
                                            Securities;   (vii)  the   issuer  of   the  Private  Mortgage-Backed
                                            Securities  (the  'PMBS  Issuer'),   the  servicer  of  the   Private
                                            Mortgage-Backed  Securities (the 'PMBS Servicer')  and the trustee of
                                            the Private Mortgage-Backed Securities  (the 'PMBS Trustee');  (viii)
                                            certain  characteristics of credit  support, if any,  such as reserve
                                            funds,  insurance  policies,  surety  bonds,  letters  of  credit  or
                                            guaranties,  relating to  the mortgage  loans underlying  the Private
                                            Mortgage-Backed  Securities  or   to  such  Private   Mortgage-Backed
                                            Securities  themselves; (ix)  the terms on  which underlying mortgage
                                            loans  for  such  Private  Mortgage-Backed  Securities  may,  or  are
                                            required  to, be  repurchased prior to  stated maturity;  and (x) the
                                            terms on which substitute mortgage loans may be delivered to  replace
                                            those initially deposited with the PMBS Trustee. See 'The Trust Fund'
                                            herein.
Description of the Certificates...........  Each  Certificate will represent a beneficial ownership interest in a
                                            Trust Fund created by  the Depositor pursuant  to an Agreement  among
                                            the  Depositor, the Master  Servicer and the  Trustee for the related
                                            Series. The Certificates of any Series  may be issued in one or  more
                                            classes  as specified in the  related Prospectus Supplement. A Series
                                            of  Certificates  may   include  one  or   more  classes  of   senior
                                            Certificates  (collectively,  the 'Senior  Certificates') and  one or
                                            more  classes   of   subordinate  Certificates   (collectively,   the
                                            'Subordinated   Certificates').   Certain   Series   or   classes  of
                                            Certificates may be
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                                            covered by insurance policies or  other forms of credit  enhancement,
                                            in  each  case  as described  herein  and in  the  related Prospectus
                                            Supplement.
                                            One or  more  classes of  Certificates  of  each Series  (i)  may  be
                                            entitled  to receive distributions allocable  only to principal, only
                                            to interest or to  any combination thereof; (ii)  may be entitled  to
                                            receive distributions only of prepayments of principal throughout the
                                            lives  of the Certificates or during  specified periods; (iii) may be
                                            subordinated in  the  right  to receive  distributions  of  scheduled
                                            payments  of  principal, prepayments  of  principal, interest  or any
                                            combination thereof to one or  more other classes of Certificates  of
                                            such  Series  throughout  the  lives of  the  Certificates  or during
                                            specified periods; (iv) may be entitled to receive such distributions
                                            only  after  the  occurrence  of  events  specified  in  the  related
                                            Prospectus  Supplement; (v) may be  entitled to receive distributions
                                            in accordance  with  a  schedule  or  formula  or  on  the  basis  of
                                            collections  from designated  portions of  the assets  in the related
                                            Trust  Fund;  (vi)  as  to  Certificates  entitled  to  distributions
                                            allocable to interest, may be entitled to receive interest at a fixed
                                            rate or a rate that is subject to change from time to time; and (vii)
                                            as  to Certificates entitled to  distributions allocable to interest,
                                            may be entitled to distributions allocable to interest only after the
                                            occurrence of events specified  in the related Prospectus  Supplement
                                            and  may accrue  interest until  such events  occur, in  each case as
                                            specified in  the  related  Prospectus  Supplement.  The  timing  and
                                            amounts  of such distributions may vary  among classes, over time, or
                                            otherwise as specified in the related Prospectus Supplement.
Distributions on the Certificates.........  Distributions on  the  Certificates  entitled thereto  will  be  made
                                            monthly,  quarterly, semi-annually or at  such other intervals and on
                                            the dates specified  in the  related Prospectus  Supplement (each,  a
                                            'Distribution  Date') out of the payments  received in respect of the
                                            assets of the  related Trust  Fund or  other assets  pledged for  the
                                            benefit  of the Certificates  as specified in  the related Prospectus
                                            Supplement.  The  amount  allocable  to  payments  of  principal  and
                                            interest  on any Distribution Date will be determined as specified in
                                            the related Prospectus Supplement. Unless otherwise specified in  the
                                            related  Prospectus Supplement,  all distributions  will be  made pro
                                            rata to Certificateholders of the class entitled thereto.
                                            Unless otherwise specified in the related Prospectus Supplement,  the
                                            aggregate  original  balance  of the  Certificates  (the 'Certificate
                                            Balance')  will  equal  the  aggregate  distributions  allocable   to
                                            principal  that  such Certificates  will be  entitled to  receive. If
                                            specified in the related Prospectus Supplement, the Certificates will
                                            have an aggregate original Certificate Balance equal to the aggregate
                                            unpaid principal balance of the Mortgage  Assets as of the first  day
                                            of  the month of creation of the Trust Fund and will bear interest at
                                            a rate (the 'Pass-Through Rate') equal to the interest rate borne  by
                                            the   underlying  Mortgage   Loans,  Agency   Securities  or  Private
                                            Mortgage-Backed Securities, net of  the aggregate servicing fees  and
                                            any  other amounts specified in the related Prospectus Supplement. If
                                            specified  in  the  related  Prospectus  Supplement,  the   aggregate
                                            original  Certificate Balance of the  Certificates and interest rates
                                            on the classes of Certificates will  be determined based on the  cash
                                            flow on the Mortgage Assets.
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                                            The  rate at which interest will be passed through to holders of each
                                            class of Certificates entitled thereto may be a fixed rate or a  rate
                                            that is subject to change from time to time from the time and for the
                                            periods,  in  each  case,  as  specified  in  the  related Prospectus
                                            Supplement. Any  such  rate  may be  calculated  on  a  loan-by-loan,
                                            weighted  average or  other basis, in  each case as  described in the
                                            related Prospectus Supplement.
Credit Enhancement........................  The assets in a Trust Fund or the Certificates of one or more classes
                                            in the related Series may  have the benefit of  one or more types  of
                                            credit enhancement as described in the related Prospectus Supplement.
                                            The protection against losses afforded by any such credit support may
                                            be   limited.  The   type,  characteristics  and   amount  of  credit
                                            enhancement will be  determined based on  the characteristics of  the
                                            Mortgage Loans underlying or comprising the Mortgage Assets and other
                                            factors  and will be established on the basis of requirements of each
                                            Rating Agency rating  the Certificates  of such  Series. See  'Credit
                                            Enhancement' herein.
A. Subordination..........................  A Series of Certificates may consist of one or more classes of Senior
                                            Certificates  and one  or more classes  of Subordinated Certificates.
                                            The rights  of the  holders  of the  Subordinated Certificates  of  a
                                            Series    (the   'Subordinated    Certificateholders')   to   receive
                                            distributions with respect to  the assets in  the related Trust  Fund
                                            will  be subordinated  to such  rights of  the holders  of the Senior
                                            Certificates of the same Series (the 'Senior Certificateholders')  to
                                            the  extent  described  in the  related  Prospectus  Supplement. This
                                            subordination is  intended  to  enhance  the  likelihood  of  regular
                                            receipt  by  Senior Certificateholders  of the  full amount  of their
                                            scheduled monthly payments of principal and interest. The  protection
                                            afforded to the Senior Certificateholders of a Series by means of the
                                            subordination  feature will  be accomplished by  (i) the preferential
                                            right of such  holders to  receive, prior to  any distribution  being
                                            made in respect of the related Subordinated Certificates, the amounts
                                            of  principal and interest due them  on each Distribution Date out of
                                            the funds  available for  distribution on  such date  in the  related
                                            Certificate  Account  and, to  the  extent described  in  the related
                                            Prospectus Supplement, by the right of such holders to receive future
                                            distributions on  the assets  in the  related Trust  Fund that  would
                                            otherwise  have been payable  to the Subordinated Certificateholders;
                                            (ii) reducing  the ownership  interest  of the  related  Subordinated
                                            Certificates;  (iii) a combination of clauses  (i) and (ii) above; or
                                            (iv) as otherwise described in the related Prospectus Supplement.  If
                                            so  specified in the related Prospectus Supplement, subordination may
                                            apply only in  the event of  certain types of  losses not covered  by
                                            other  forms of credit support, such  as hazard losses not covered by
                                            standard hazard insurance policies or losses due to the bankruptcy or
                                            fraud of the  borrower. The  related Prospectus  Supplement will  set
                                            forth  information  concerning,  among other  things,  the  amount of
                                            subordination of a class or classes of Subordinated Certificates in a
                                            Series,  the  circumstances  in  which  such  subordination  will  be
                                            applicable   and  the  manner,  if  any,   in  which  the  amount  of
                                            subordination will decrease over time.
B. Reserve Fund...........................  One or more reserve funds (the 'Reserve Fund') may be established and
                                            maintained for each  Series. The related  Prospectus Supplement  will
                                            specify    whether   or    not   any    such   Reserve    Fund   will
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                                            be included in the corpus of the Trust Fund for such Series and  will
                                            also  specify the manner of funding  the related Reserve Fund and the
                                            conditions under which the amounts in  any such Reserve Fund will  be
                                            used to make distributions to holders of Certificates of a particular
                                            class or released from the related Trust Fund.
C. Mortgage Pool
   Insurance Policy.......................  A  mortgage  pool insurance  policy or  policies (the  'Mortgage Pool
                                            Insurance Policy') may be obtained and maintained for a Series, which
                                            shall be limited in scope, covering defaults on the related  Mortgage
                                            Loans  in an  initial amount equal  to a specified  percentage of the
                                            aggregate principal balance  of all  Mortgage Loans  included in  the
                                            Mortgage  Pool as of  the first day  of the month  of issuance of the
                                            related Series of Certificates or such other date as is specified  in
                                            the related Prospectus Supplement (the 'Cut-off Date').
D. Special Hazard Insurance
   Policy.................................  A  special hazard insurance  policy or policies  (the 'Special Hazard
                                            Insurance Policy'),  may be  obtained and  maintained for  a  Series,
                                            covering  certain  physical  risks  that  are  not  otherwise insured
                                            against by standard  hazard insurance policies.  Each Special  Hazard
                                            Insurance  Policy  will be  limited in  scope  and will  cover losses
                                            pursuant to  the provisions  of each  such Special  Hazard  Insurance
                                            Policy as described in the related Prospectus Supplement.
E. Bankruptcy Bond........................  A  bankruptcy bond or bonds (the  'Bankruptcy Bonds') may be obtained
                                            to cover certain losses resulting from action that may be taken by  a
                                            bankruptcy  court in  connection with a  Mortgage Loan.  The level of
                                            coverage and the limitations in scope of each Bankruptcy Bond will be
                                            specified in the related Prospectus Supplement.
F. FHA Insurance and VA
   Guaranty...............................  All or a  portion of the  Mortgage Loans  in a Mortgage  Pool may  be
                                            insured  by  FHA insurance  ('FHA  Insurance') and  may  be partially
                                            guaranteed by the VA (a 'VA Guaranty').
G. Cross Support..........................  If specified  in the  related Prospectus  Supplement, the  beneficial
                                            ownership  of separate groups of assets  included in a Trust Fund may
                                            be  evidenced  by   separate  classes  of   the  related  Series   of
                                            Certificates.  In  such case,  credit support  may  be provided  by a
                                            cross-support feature which requires that distributions be made  with
                                            respect  to Certificates  evidencing beneficial  ownership of  one or
                                            more asset groups prior to distributions to Subordinated Certificates
                                            evidencing a  beneficial ownership  interest  in other  asset  groups
                                            within the same Trust Fund.
H. Other Arrangements.....................  Other  arrangements as described in the related Prospectus Supplement
                                            including, but not limited to, one or more letters of credit,  surety
                                            bonds,  other insurance  or third  party guaranties,  may be  used to
                                            provide coverage for  certain risks  of default or  various types  of
                                            losses.
Advances..................................  Unless  otherwise specified in the related Prospectus Supplement, the
                                            Master  Servicer  and,   if  applicable,   each  mortgage   servicing
                                            institution  that  services a  Mortgage Loan  in  a Mortgage  Pool on
                                            behalf of  the  Master  Servicer (each,  a  'Sub-Servicer')  will  be
                                            obligated  to advance  amounts (each, an  'Advance') corresponding to
                                            delinquent principal  and interest  payments  on such  Mortgage  Loan
                                            (including, in the case of Cooperative Loans, unpaid maintenance fees
                                            or other charges under the related proprietary
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                                            lease)  until the first day of the  month following the date on which
                                            the related Mortgaged Property is sold  at a foreclosure sale or  the
                                            related Mortgage Loan is otherwise liquidated. Any obligation to make
                                            Advances  may be subject  to limitations as  specified in the related
                                            Prospectus Supplement. Advances  will be reimbursable  to the  extent
                                            described herein and in the related Prospectus Supplement.
Optional Termination......................  The  Master  Servicer  or,  if specified  in  the  related Prospectus
                                            Supplement, the holder of the residual  interest in a REMIC may  have
                                            the  option to  effect early retirement  of a  Series of Certificates
                                            through the purchase of the Mortgage  Assets and other assets in  the
                                            related  Trust  Fund  under  the  circumstances  and  in  the  manner
                                            described in  'The Pooling  and Servicing  Agreement --  Termination;
                                            Optional Termination' herein.
Legal Investment..........................  The  Prospectus  Supplement  for  each  Series  of  Certificates will
                                            specify which, if any, of the classes of Certificates offered thereby
                                            will constitute  'mortgage related  securities' for  purposes of  the
                                            Secondary  Mortgage Market Enhancement Act of 1984 ('SMMEA'). Classes
                                            of Certificates that qualify as 'mortgage related securities' will be
                                            legal investments for certain types of institutional investors to the
                                            extent provided  in  SMMEA,  subject,  in  any  case,  to  any  other
                                            regulations   that  may  govern  investments  by  such  institutional
                                            investors. Institutions whose  investment activities  are subject  to
                                            review  by  federal or  state authorities  should consult  with their
                                            counsel  or  the  applicable  authorities  to  determine  whether  an
                                            investment in a particular class of Certificates (whether or not such
                                            class  constitutes  a  'mortgage  related  security')  complies  with
                                            applicable guidelines, policy statements or restrictions. See  'Legal
                                            Investment' herein.
Certain Federal Income Tax Consequences...  The  federal income tax consequences  to Certificateholders will vary
                                            depending on whether  one or  more elections  are made  to treat  the
                                            Trust  Fund or specified portions thereof  as a 'real estate mortgage
                                            investment conduit' ('REMIC')  under the provisions  of the  Internal
                                            Revenue  Code  of  1986,  as  amended  (the  'Code').  The Prospectus
                                            Supplement for each Series of Certificates will specify whether  such
                                            an   election  will  be   made.  See  'Certain   Federal  Income  Tax
                                            Consequences' herein and in the related Prospectus Supplement.
ERISA Considerations......................  A fiduciary of any employee benefit plan or other retirement plan  or
                                            arrangement subject to the Employee Retirement Income Security Act of
                                            1974,  as amended ('ERISA'), or the Code should carefully review with
                                            its legal advisors  whether the purchase  or holding of  Certificates
                                            could  give  rise  to  a  transaction  prohibited  or  not  otherwise
                                            permissible under  ERISA  or  the Code.  See  'ERISA  Considerations'
                                            herein  and in the related  Prospectus Supplement. Certain classes of
                                            Certificates may  not  be  transferred unless  the  Trustee  and  the
                                            Depositor are furnished with a letter of representation or an opinion
                                            of  counsel to  the effect  that such transfer  will not  result in a
                                            violation of the prohibited transaction  provisions of ERISA and  the
                                            Code  and will not  subject the Trustee, the  Depositor or the Master
                                            Servicer  to  additional   obligations.  See   'Description  of   the
                                            Certificates -- General' and 'ERISA Considerations' herein and in the
                                            related Prospectus Supplement.
</TABLE>
 
                                       10


<PAGE>

<PAGE>
                                THE TRUST FUND*
 
     The  Trust Fund for each Series will be held by the Trustee for the benefit
of the  related Certificateholders.  Each  Trust Fund  will consist  of  certain
mortgage-related  assets (the  'Mortgage Assets')  consisting of  (A) a mortgage
pool (a 'Mortgage Pool') comprised of  Mortgage Loans, (B) Agency Securities  or
(C) Private Mortgage-Backed Securities, in each case as specified in the related
Prospectus Supplement, together with payments in respect of such Mortgage Assets
and certain other accounts, obligations or agreements, in each case as specified
in the related Prospectus Supplement.
 
     The Certificates will be entitled to payment from the assets of the related
Trust  Fund  or other  assets pledged  for the  benefit of  the holders  of such
Certificates (the 'Certificateholders') as  specified in the related  Prospectus
Supplement  and will not be entitled to payments in respect of the assets of any
other trust fund established by the Depositor. Unless otherwise specified in the
related Prospectus  Supplement,  the Mortgage  Assets  of any  Trust  Fund  will
consist   of  Mortgage  Loans,  Agency  Securities  or  Private  Mortgage-Backed
Securities but not a combination thereof.
 
     The Mortgage Assets may  be acquired by the  Depositor, either directly  or
through  affiliates, from originators  or sellers that may  be affiliates of the
Depositor (the 'Sellers')  and conveyed by  the Depositor to  the related  Trust
Fund.  Mortgage Loans  acquired by  the Depositor  will have  been originated in
accordance with the underwriting criteria  specified below under 'Mortgage  Loan
Program  --  Underwriting  Standards' or  as  otherwise described  in  a related
Prospectus Supplement.
 
     The following is a brief description of the Mortgage Assets expected to  be
included  in the  Trust Funds. If  specific information  respecting the Mortgage
Assets is not known at the time the related Series of Certificates initially  is
offered, more general information of the nature described below will be provided
in the related Prospectus Supplement, and specific information will be set forth
in  a report on Form 8-K to be filed with the Securities and Exchange Commission
within fifteen  days  after  the  initial issuance  of  such  Certificates  (the
'Detailed  Description'). A  schedule of  the Mortgage  Assets relating  to such
Series will be attached to the Agreement delivered to the Trustee upon  delivery
of the Certificates.
 
THE MORTGAGE LOANS -- GENERAL
 
     For  purposes  hereof,  the real  property  that secures  repayment  of the
Mortgage Loans  is  referred  to collectively  as  'Mortgaged  Properties'.  The
Mortgaged Properties may be located in any one of the fifty states, the District
of  Columbia, Guam,  Puerto Rico  or any other  territory of  the United States.
Mortgage Loans  with  certain  Loan-to-Value  Ratios  and/or  certain  principal
balances  may  be  covered  wholly or  partially  by  primary  mortgage guaranty
insurance policies (each, a 'Primary Mortgage Insurance Policy'). The existence,
extent and duration  of any such  coverage will be  described in the  applicable
Prospectus Supplement.
 
     Unless otherwise specified in the related Prospectus Supplement, all of the
Mortgage  Loans in a Mortgage  Pool will have monthly  payments due on the first
day of each month. The payment terms of  the Mortgage Loans to be included in  a
Trust  Fund  will be  described  in the  related  Prospectus Supplement  and may
include any of the following features  or combination thereof or other  features
described in the related Prospectus Supplement:
 
          (a)  Interest may be payable  at a fixed rate,  a rate adjustable from
     time to  time in  relation to  an index  (which will  be specified  in  the
     related  Prospectus Supplement), a rate that is  fixed for a period of time
     or under certain  circumstances and is  followed by an  adjustable rate,  a
     rate that otherwise varies from time to time, or a rate that is convertible
     from  an adjustable rate to a fixed rate. Changes to an adjustable rate may
     be subject  to periodic  limitations,  maximum rates,  minimum rates  or  a
     combination of such limitations. Accrued interest may be deferred and added
     to the principal of a loan for such periods and under such circumstances as
     may  be specified in the related Prospectus Supplement. A Mortgage Note may
     provide for the payment of interest at a rate lower than the Mortgage  Rate
     specified in such Mortgage Note for a period of time or for the life of the
     loan,  and  the amount  of  any difference  may  be contributed  from funds
     supplied by the seller of the Mortgaged Property or another source.
 
- ------------------------------
 
* Whenever the  terms  'Mortgage  Pool'  and 'Certificates'  are  used  in  this
  Prospectus,  such terms will be deemed  to apply, unless the context indicates
  otherwise, to one  specific Mortgage  Pool and  the Certificates  representing
  certain  undivided interests, as described below,  in a single trust fund (the
  'Trust Fund') consisting  primarily of  the Mortgage Assets  in such  Mortgage
  Pool.  Similarly, the term 'Pass-Through Rate'  will refer to the Pass-Through
  Rate borne by  the Certificates  of one specific  Series and  the term  'Trust
  Fund' will refer to one specific Trust Fund.
 
                                       11
 
<PAGE>

<PAGE>
          (b)  Principal may be payable  on a level debt  service basis to fully
     amortize the Mortgage Loan over its term, may be calculated on the basis of
     an assumed  amortization schedule  that is  significantly longer  than  the
     original term to maturity or on an interest rate that is different from the
     Mortgage  Rate  or may  not be  amortized during  all or  a portion  of the
     original term. Payment of all or a substantial portion of the principal may
     be due on  maturity ('balloon  payments'). Principal  may include  interest
     that  has been deferred and added to  the principal balance of the Mortgage
     Loan.
 
          (c) Monthly payments of  principal and interest may  be fixed for  the
     life  of the Mortgage Loan, may increase over a specified period of time or
     may change from period to period. The terms of a Mortgage Loan may  include
     limits on periodic increases or decreases in the amount of monthly payments
     and may include maximum or minimum amounts of monthly payments.
 
          (d)  The Mortgage Loans  generally may be prepaid  at any time without
     the payment  of  any  prepayment  fee.  If  so  specified  in  the  related
     Prospectus  Supplement, some prepayments  of principal may  be subject to a
     prepayment fee, which may be fixed for  the life of any such Mortgage  Loan
     or  may  decline over  time, and  may be  prohibited for  the life  of such
     Mortgage Loan or for certain periods ('lockout periods'). Certain  Mortgage
     Loans  may permit  prepayments after  expiration of  the applicable lockout
     period and may require the payment  of a prepayment fee in connection  with
     any such subsequent prepayment. Other Mortgage Loans may permit prepayments
     without payment of a fee unless the prepayment occurs during specified time
     periods.  The  loans  may  include 'due-on-sale'  clauses  that  permit the
     mortgagee to demand payment of the entire Mortgage Loan in connection  with
     the  sale or  certain transfers  of the  related Mortgaged  Property. Other
     Mortgage Loans  may be  assumable by  persons meeting  the then  applicable
     underwriting standards of the Seller.
 
     A  Trust Fund  may contain  certain Mortgage  Loans ('Buydown  Loans') that
include provisions  whereby  a  third party  partially  subsidizes  the  monthly
payments of the obligors on such Mortgage Loans (each, a 'Mortgagor') during the
early  years of such Mortgage Loans, the difference to be made up from a fund (a
'Buydown Fund') contributed by  such third party at  the time of origination  of
the  Mortgage Loan.  A Buydown  Fund will be  in an  amount equal  either to the
discounted value  or full  aggregate  amount of  future payment  subsidies.  The
underlying  assumption of buydown plans is that the income of the Mortgagor will
increase  during  the  buydown  period  as  a  result  of  normal  increases  in
compensation  and inflation, so that the Mortgagor will be able to meet the full
mortgage payments at  the end of  the buydown  period. To the  extent that  this
assumption  as to increased income is not fulfilled, the possibility of defaults
on Buydown Loans is  increased. The related  Prospectus Supplement will  contain
information  with  respect to  any Buydown  Loan  concerning limitations  on the
interest rate  paid by  the  Mortgagor initially,  on  annual increases  in  the
interest rate and on the length of the buydown period.
 
     Each Prospectus Supplement will contain information, as of the date of such
Prospectus  Supplement  and  to  the  extent  then  specifically  known  to  the
Depositor, with respect to the Mortgage Loans contained in the related  Mortgage
Pool,  including (i) the aggregate outstanding principal balance and the average
outstanding principal balance of the Mortgage Loans as of the applicable Cut-off
Date, (ii) the  type of  property securing  the Mortgage  Loans (e.g.,  separate
residential  properties, individual units in  condominium apartment buildings or
in buildings owned  by Cooperatives, vacation  and second homes,  or other  real
property),  (iii) the original terms to maturity of the Mortgage Loans, (iv) the
largest principal  balance and  the smallest  principal balance  of any  of  the
Mortgage  Loans, (v) the  earliest origination date and  latest maturity date of
any of the  Mortgage Loans,  (vi) the  aggregate principal  balance of  Mortgage
Loans  having  Loan-to-Value  Ratios  at origination  exceeding  80%,  (vii) the
maximum and  minimum  per  annum  Mortgage Rates  and  (viii)  the  geographical
distribution  of  the Mortgage  Loans.  If specific  information  respecting the
Mortgage  Loans  is  not  known  to  the  Depositor  at  the  time  the  related
Certificates  are  initially offered,  more  general information  of  the nature
described above will be provided in the Detailed Description.
 
     The 'Loan-to-Value  Ratio' of  a Mortgage  Loan at  any given  time is  the
fraction,  expressed as  a percentage,  the numerator  of which  is the original
principal balance of the related Mortgage  Loan and the denominator of which  is
the  Collateral  Value  of  the  related  Mortgaged  Property.  Unless otherwise
specified in  the related  Prospectus Supplement,  the 'Collateral  Value' of  a
Mortgaged  Property is the  lesser of (a)  the appraised value  determined in an
appraisal obtained by the  originator at origination of  such Mortgage Loan  and
(b) the sales price for such property.
 
     No  assurance can  be given  that values  of the  Mortgaged Properties have
remained or will  remain at  their levels  on the  dates of  origination of  the
related  Mortgage Loans. If the residential real estate market should experience
an overall  decline  in property  values  such that  the  outstanding  principal
balances of the Mortgage
 
                                       12
 
<PAGE>

<PAGE>
Loans,  and any secondary financing on the Mortgaged Properties, in a particular
Mortgage Pool  become  equal to  or  greater than  the  value of  the  Mortgaged
Properties,  the actual rates of delinquencies, foreclosures and losses could be
higher than those now generally experienced in the mortgage lending industry. In
addition, adverse economic conditions  and other factors (which  may or may  not
affect  real property  values) may  affect the  timely payment  by Mortgagors of
scheduled payments  of  principal  and  interest  on  the  Mortgage  Loans  and,
accordingly,  the actual  rates of  delinquencies, foreclosures  and losses with
respect to any Mortgage Pool. To the extent that such losses are not covered  by
subordination provisions or alternative arrangements, such losses will be borne,
at least in part, by the holders of the Certificates of the related Series.
 
     The  Depositor will cause the Mortgage  Loans comprising each Mortgage Pool
to be assigned to the Trustee named in the related Prospectus Supplement for the
benefit of the  Certificateholders of  the related Series.  The Master  Servicer
named  in the  related Prospectus  Supplement will  service the  Mortgage Loans,
either   directly   or   through    other   mortgage   servicing    institutions
('Sub-Servicers'),  pursuant  to a  Pooling  and Servicing  Agreement  (each, an
'Agreement'), and  will receive  a fee  for such  services. See  'Mortgage  Loan
Program'  and  'The Pooling  and Servicing  Agreement'  herein. With  respect to
Mortgage Loans  serviced by  the  Master Servicer  through a  Sub-Servicer,  the
Master  Servicer  will remain  liable for  its  servicing obligations  under the
related Agreement as if the Master  Servicer alone were servicing such  Mortgage
Loans.
 
     Unless  otherwise specified in the  related Prospectus Supplement, the only
obligations of the Depositor with respect to a Series of Certificates will be to
obtain certain representations and warranties from the Sellers and to assign  to
the  Trustee for such Series of Certificates the Depositor's rights with respect
to  such  representations  and  warranties.  See  'The  Pooling  and   Servicing
Agreement  --  Assignment of  Mortgage Assets'  herein.  The obligations  of the
Master Servicer with respect to the  Mortgage Loans will consist principally  of
its contractual servicing obligations under the related Agreement (including its
obligation  to enforce the obligations of the Sub-Servicers or Sellers, or both,
as more fully described herein  under 'Mortgage Loan Program --  Representations
by Sellers; Repurchases' and its obligation to make certain cash advances (each,
an  'Advance') in the event  of delinquencies in payments  on or with respect to
the Mortgage Loans  in the amounts  described herein under  'Description of  the
Certificates  --  Advances'.  The obligations  of  the Master  Servicer  to make
Advances may be subject to limitations, to the extent provided herein and in the
related Prospectus Supplement.
 
     Unless otherwise specified in  the related Prospectus Supplement,  Mortgage
Loans  will consist of mortgage loans, deeds of trust or participations or other
beneficial interests  therein, secured  by first  liens on  one- to  four-family
residential  properties.  If  so  specified,  the  Mortgage  Loans  may  include
cooperative apartment loans ('Cooperative Loans') secured by security  interests
in  shares  issued  by  private,  non-profit,  cooperative  housing corporations
('Cooperatives') and in the related  proprietary leases or occupancy  agreements
granting   exclusive  rights   to  occupy   specific  dwelling   units  in  such
Cooperatives' buildings. If so specified  in the related Prospectus  Supplement,
the Mortgage Assets of the related Trust Fund may include mortgage participation
certificates   evidencing  interests  in  Mortgage  Loans.  Such  loans  may  be
conventional loans  (i.e., loans  that  are not  insured  or guaranteed  by  any
governmental  agency) or loans insured by the FHA or partially guaranteed by the
VA, as specified in the related Prospectus Supplement.
 
     The Mortgaged  Properties  relating  to  Mortgage  Loans  will  consist  of
detached  or  semi-detached  one-family  dwelling  units,  two-  to  four-family
dwelling units, townhouses, rowhouses, individual condominium units,  individual
units  in  planned  unit developments  and  certain other  dwelling  units. Such
Mortgaged  Properties  may  include   vacation  and  second  homes,   investment
properties and leasehold interests. In the case of leasehold interests, the term
of  the leasehold will exceed the scheduled  maturity of the Mortgage Loan by at
least  five  years,  unless  otherwise  specified  in  the  related   Prospectus
Supplement.
 
AGENCY SECURITIES
 
     Government National Mortgage Association.  GNMA is a wholly-owned corporate
instrumentality  of  the  United States  with  the United  States  Department of
Housing and  Urban Development.  Section  306(g) of  Title  II of  the  National
Housing  Act  of  1934,  as  amended (the  'Housing  Act'),  authorizes  GNMA to
guarantee the timely payment  of the principal of  and interest on  certificates
(the 'GNMA Certificates') that represent an interest in a pool of mortgage loans
insured  by the FHA under the Housing Act or  Title V of the Housing Act of 1949
('FHA Loans'),  or  partially  guaranteed  by  the  VA  under  the  Servicemen's
Readjustment  Act of 1944, as amended, or  Chapter 37 of Title 38, United States
Code ('VA Loans').
 
     Section 306(g) of the Housing Act provides that 'the full faith and  credit
of  the United  States is  pledged to the  payment of  all amounts  which may be
required to be paid under any guaranty under this subsection.' In order to  meet
its  obligations under any such guaranty, GNMA  may, under Section 306(d) of the
Housing Act,
 
                                       13
 
<PAGE>

<PAGE>
borrow from the United States  Treasury in an unlimited  amount which is at  any
time sufficient to enable GNMA to perform its obligations under its guarantee.
 
     GNMA  Certificates.  Each GNMA Certificate held  in a Trust Fund (which may
be issued under  either the GNMA  I program  (each such certificate,  a 'GNMA  I
Certificate')  or  the  GNMA  II  program (each  such  certificate,  a  'GNMA II
Certificate'))  will  be   a  'fully   modified  pass-through'   mortgage-backed
certificate issued and serviced by a mortgage banking company or other financial
concern  ('GNMA Issuer') approved by GNMA or by FNMA as a seller-servicer of FHA
Loans and/or VA Loans. The mortgage loans underlying the GNMA Certificates  will
consist  of FHA Loans and/or  VA Loans. Each such mortgage  loan is secured by a
one-to four-family or  multifamily residential property.  GNMA will approve  the
issuance  of each such GNMA Certificate  in accordance with a guaranty agreement
(a 'Guaranty  Agreement') between  GNMA and  the GNMA  Issuer. Pursuant  to  its
Guaranty  Agreement, a GNMA Issuer will be  required to advance its own funds in
order to make timely payments of all  amounts due on each such GNMA  Certificate
if  the  payments received  by the  GNMA Issuer  on  the FHA  Loans or  VA Loans
underlying each such GNMA Certificate are less than the amounts due on each such
GNMA Certificate.
 
     The full  and timely  payment of  principal of  and interest  on each  GNMA
Certificate  will be guaranteed by GNMA, which  obligation is backed by the full
faith and credit of the United States.  Each such GNMA Certificate will have  an
original maturity of not more than 30 years (but may have original maturities of
substantially  less than 30 years). Each such  GNMA Certificate will be based on
and backed by a  pool of FHA Loans  or VA Loans secured  by one- to  four-family
residential  properties and will provide for the  payment by or on behalf of the
GNMA Issuer  to the  registered holder  of such  GNMA Certificate  of  scheduled
monthly  payments of  principal and  interest equal  to the  registered holder's
proportionate interest  in the  aggregate amount  of the  monthly principal  and
interest  payment on each FHA Loan or  VA Loan underlying such GNMA Certificate,
less the  applicable  servicing  and  guaranty fee,  which  together  equal  the
difference  between the interest on the FHA Loan or VA Loan and the pass-through
rate  on  the  GNMA  Certificate.   In  addition,  each  payment  will   include
proportionate  pass-through payments of any prepayments  of principal on the FHA
Loans or VA Loans underlying such  GNMA Certificate and liquidation proceeds  in
the  event of  a foreclosure or  other disposition of  any such FHA  Loans or VA
Loans.
 
     If a GNMA Issuer is unable to make the payments on a GNMA Certificate as it
becomes due, it must promptly notify GNMA and request GNMA to make such payment.
Upon notification and  request, GNMA  will make  such payments  directly to  the
registered holder of such GNMA Certificate. In the event no payment is made by a
GNMA  Issuer and the GNMA  Issuer fails to notify and  request GNMA to make such
payment, the holder  of such GNMA  Certificate will have  recourse only  against
GNMA to obtain such payment. The Trustee or its nominee, as registered holder of
the  GNMA Certificates  held in  a Trust  Fund, will  have the  right to proceed
directly against GNMA  under the terms  of the Guaranty  Agreements relating  to
such GNMA Certificates for any amounts that are not paid when due.
 
     All mortgage loans underlying a particular GNMA I Certificate must have the
same  interest rate (except for pools  of mortgage loans secured by manufactured
homes) over the term of the loan.  The interest rate on such GNMA I  Certificate
will  equal the  interest rate  on the  mortgage loans  included in  the pool of
mortgage loans  underlying such  GNMA I  Certificate, less  one-half  percentage
point per annum of the unpaid principal balance of the mortgage loans.
 
     Mortgage  loans underlying  a particular GNMA  II Certificate  may have per
annum interest rates that vary  from each other by  up to one percentage  point.
The  interest  rate  on  each  GNMA  II  Certificate  will  be  between one-half
percentage point and one and one-half  percentage points lower than the  highest
interest  rate on  the mortgage  loans included  in the  pool of  mortgage loans
underlying such GNMA II Certificate (except for pools of mortgage loans  secured
by manufactured homes).
 
     Regular  monthly installment  payments on each  GNMA Certificate  held in a
Trust Fund  will  be  comprised  of  interest due  as  specified  on  such  GNMA
Certificate  plus the scheduled principal payments on  the FHA Loans or VA Loans
underlying such GNMA Certificate due on the first day of the month in which  the
scheduled  monthly installments on  such GNMA Certificate  are due. Such regular
monthly installments on each  such GNMA Certificate are  required to be paid  to
the  Trustee as registered holder by the 15th day of each month in the case of a
GNMA I Certificate and are required to be mailed to the Trustee by the 20th  day
of each month in the case of a GNMA II Certificate. Any principal prepayments on
any  FHA Loans or VA Loans underlying a GNMA Certificate held in a Trust Fund or
any other early recovery of  principal on such loans  will be passed through  to
the Trustee as the registered holder of such GNMA Certificate.
 
                                       14
 
<PAGE>

<PAGE>
     GNMA  Certificates may be backed by  graduated payment mortgage loans or by
Buydown Loans for which funds will have been provided (and deposited into escrow
accounts) for application to the payment of a portion of the borrowers'  monthly
payments  during  the  early  years  of such  mortgage  loan.  Payments  due the
registered holders of GNMA Certificates backed by pools containing Buydown Loans
will be  computed  in  the same  manner  as  payments derived  from  other  GNMA
Certificates and will include amounts to be collected from both the borrower and
the  related escrow account.  The graduated payment  mortgage loans will provide
for graduated interest payments  that, during the early  years of such  mortgage
loans,  will be less than the amount  of stated interest on such mortgage loans.
The interest  not so  paid will  be added  to the  principal of  such  graduated
payment  mortgage loans  and, together  with interest  thereon, will  be paid in
subsequent years. The obligations of GNMA and of a GNMA Issuer will be the  same
irrespective  of whether the  GNMA Certificates are  backed by graduated payment
mortgage  loans  or  Buydown  Loans.  No  statistics  comparable  to  the  FHA's
prepayment  experience  on  level  payment,  non-'buydown'  mortgage  loans  are
available in respect of  graduated payment or  Buydown Loans. GNMA  Certificates
related to a Series of Certificates may be held in book-entry form.
 
     The  GNMA Certificates included in a Trust Fund, and the related underlying
mortgage  loans,  may  have  characteristics  and  terms  different  from  those
described  above. Any such different characteristics and terms will be described
in the related Prospectus Supplement.
 
     Federal  Home   Loan  Mortgage   Corporation.     FHLMC  is   a   corporate
instrumentality  of  the United  States  created pursuant  to  Title III  of the
Emergency Home Finance  Act of 1970,  as amended (the  'FHLMC Act'). The  common
stock  of FHLMC is owned by the Federal  Home Loan Banks and its preferred stock
is owned by stockholders of the  Federal Home Loan Banks. FHLMC was  established
primarily  for the purpose of increasing the availability of mortgage credit for
the financing of urgently needed housing. It seeks to provide an enhanced degree
of liquidity for residential mortgage investments primarily by assisting in  the
development  of  secondary  markets for  conventional  mortgages.  The principal
activity of FHLMC currently consists of the purchase of first lien  conventional
mortgage loans or participation interests in such mortgage loans and the sale of
the  mortgage  loans or  participations  so purchased  in  the form  of mortgage
securities, primarily FHLMC  Certificates. FHLMC is  confined to purchasing,  so
far as practicable, mortgage loans that it deems to be of such quality, type and
class   as  to  meet  generally  the   purchase  standards  imposed  by  private
institutional mortgage investors.
 
     FHLMC  Certificates.    Each  FHLMC  Certificate  represents  an  undivided
interest in a pool of mortgage loans that may consist of first lien conventional
loans,  FHA Loans or VA Loans  (a 'FHLMC Certificate group'). FHLMC Certificates
are sold under the  terms of a Mortgage  Participation Certificate Agreement.  A
FHLMC  Certificate may be issued under  either FHLMC's Cash Program or Guarantor
Program.
 
     Mortgage loans underlying the FHLMC Certificates held by a Trust Fund  will
consist  of mortgage loans with original terms  to maturity of between 10 and 40
years. Each such mortgage loan must  meet the applicable standards set forth  in
the  FHLMC Act. A FHLMC Certificate group may include whole loans, participation
interests  in  whole  loans  and  undivided  interests  in  whole  loans  and/or
participations  comprising another FHLMC Certificate  group. Under the Guarantor
Program, any  such FHLMC  Certificate  group may  include  only whole  loans  or
participation interests in whole loans.
 
     FHLMC  guarantees  to each  registered holder  of  a FHLMC  Certificate the
timely payment of interest on the underlying mortgage loans to the extent of the
applicable certificate interest rate on  the registered holder's pro rata  share
of  the unpaid principal balance outstanding on the underlying mortgage loans in
the FHLMC Certificate group  represented by such  FHLMC Certificate, whether  or
not  received.  FHLMC  also guarantees  to  each  registered holder  of  a FHLMC
Certificate collection  by  such  holder  of all  principal  on  the  underlying
mortgage  loans, without any offset or deduction, to the extent of such holder's
pro rata share thereof, but does not,  except if and to the extent specified  in
the  related Prospectus Supplement  for a Series  of Certificates, guarantee the
timely payment  of scheduled  principal. Under  FHLMC's Gold  PC Program,  FHLMC
guarantees  the timely payment of principal  based on the difference between the
pool factor published in the month  preceding the month of distribution and  the
pool factor published in such month of distribution. Pursuant to its guaranties,
FHLMC  indemnifies  holders  of  FHLMC Certificates  against  any  diminution in
principal  by  reason   of  charges  for   property  repairs,  maintenance   and
foreclosure.  FHLMC  may remit  the amount  due  on account  of its  guaranty of
collection of principal  at any  time after  default on  an underlying  mortgage
loan,  but not later than  (i) 30 days following  foreclosure sale, (ii) 30 days
following payment  of  the  claim by  any  mortgage  insurer or  (iii)  30  days
following the expiration of any right of redemption, whichever occurs later, but
in  any  event no  later  than one  year  after demand  has  been made  upon the
mortgagor for accelerated payment of principal. In taking actions regarding  the
collection  of principal  after default on  the mortgage  loans underlying FHLMC
Certificates, including the  timing of demand  for acceleration, FHLMC  reserves
the  right to exercise  its judgment with  respect to the  mortgage loans in the
same manner as for mortgage loans that it has purchased but not sold. The length
of
 
                                       15
 
<PAGE>

<PAGE>
time necessary for FHLMC to determine that a mortgage loan should be accelerated
varies with the particular  circumstances of each mortgagor,  and FHLMC has  not
adopted  standards which  require that the  demand be made  within any specified
period.
 
     FHLMC Certificates  are not  guaranteed  by the  United  States or  by  any
Federal  Home Loan Bank and do not constitute debts or obligations of the United
States or  any  Federal Home  Loan  Bank. The  obligations  of FHLMC  under  its
guaranty  are obligations solely of FHLMC and are not backed by, or entitled to,
the full faith and credit of the United States. If FHLMC were unable to  satisfy
such  obligations, distributions to holders  of FHLMC Certificates would consist
solely of payments and  other recoveries on the  underlying mortgage loans  and,
accordingly,  monthly distributions  to holders  of FHLMC  Certificates would be
affected by delinquent payments and defaults on such mortgage loans.
 
     Registered holders  of FHLMC  Certificates are  entitled to  receive  their
monthly  pro rata  share of  all principal  payments on  the underlying mortgage
loans received by FHLMC,  including any scheduled  principal payments, full  and
partial  prepayments of principal  and principal received by  FHLMC by virtue of
condemnation, insurance,  liquidation or  foreclosure,  and repurchases  of  the
mortgage  loans by FHLMC or the seller  thereof. FHLMC is required to remit each
registered FHLMC certificateholder's pro rata share of principal payments on the
underlying mortgage loans, interest at the FHLMC pass-through rate and any other
sums such as prepayment fees, within 60 days of the date on which such  payments
are deemed to have been received by FHLMC.
 
     Under  FHLMC's Cash Program, there is no  limitation on the amount by which
interest rates on the mortgage loans  underlying a FHLMC Certificate may  exceed
the  pass-through  rate  on the  FHLMC  Certificate. Under  such  program, FHLMC
purchases groups of whole mortgage  loans from sellers at specified  percentages
of  their unpaid principal  balances, adjusted for  accrued or prepaid interest,
which when applied to the interest rate of the mortgage loans and participations
purchased results in the  yield (expressed as a  percentage) required by  FHLMC.
The  required  yield, which  includes a  minimum servicing  fee retained  by the
servicer, is calculated using  the outstanding principal  balance. The range  of
interest  rates on the mortgage loans  and participations in a FHLMC Certificate
group under the Cash Program will  vary since mortgage loans and  participations
are  purchased and assigned to a FHLMC  Certificate group based upon their yield
to FHLMC rather  than on  the interest rate  on the  underlying mortgage  loans.
Under FHLMC's Guarantor Program, the pass-through rate on a FHLMC Certificate is
established  based  upon the  lowest interest  rate  on the  underlying mortgage
loans, minus a minimum  servicing fee and the  amount of FHLMC's management  and
guaranty income as agreed upon between the seller and FHLMC.
 
     FHLMC  Certificates  duly presented  for  registration of  ownership  on or
before the last business day of a month are registered effective as of the first
day of  the month.  The  first remittance  to a  registered  holder of  a  FHLMC
Certificate will be distributed so as to be received normally by the 15th day of
the  second month following the month in which the purchaser became a registered
holder  of  such  FHLMC  Certificate.   Thereafter,  such  remittance  will   be
distributed  monthly to the registered  holder so as to  be received normally by
the 15th day  of each  month. The  Federal Reserve  Bank of  New York  maintains
book-entry accounts with respect to FHLMC Certificates sold by FHLMC on or after
January  2, 1985, and makes payments of principal and interest each month to the
registered holders thereof in accordance with such holders' instructions.
 
     Federal National Mortgage Association.   FNMA is a federally chartered  and
privately  owned corporation organized  and existing under  the Federal National
Mortgage Association Charter Act, as amended. FNMA was originally established in
1938 as a United States government  agency to provide supplemental liquidity  to
the   mortgage  market  and   was  transformed  into   a  stockholder-owned  and
privately-managed corporation by legislation enacted in 1968.
 
     FNMA provides funds to the mortgage market primarily by purchasing mortgage
loans from lenders,  thereby replenishing  their funds  for additional  lending.
FNMA  acquires  funds  to  purchase  mortgage  loans  from  many  capital market
investors that may  not ordinarily  invest in mortgages,  thereby expanding  the
total amount of funds available for housing. Operating nationwide, FNMA helps to
redistribute mortgage funds from capital-surplus to capital-short areas.
 
     FNMA  Certificates.  FNMA Certificates are Guaranteed Mortgage Pass-Through
Certificates representing fractional undivided interests  in a pool of  mortgage
loans  formed by FNMA. Each mortgage loan  must meet the applicable standards of
the FNMA purchase program. Mortgage loans comprising a pool are either  provided
by FNMA from its own portfolio or purchased pursuant to the criteria of the FNMA
purchase program.
 
     Mortgage  loans  underlying FNMA  Certificates held  by  a Trust  Fund will
consist of  conventional  mortgage  loans,  FHA  Loans  or  VA  Loans.  Original
maturities   of   substantially   all  of   the   conventional,   level  payment
 
                                       16
 
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<PAGE>
mortgage loans underlying a FNMA Certificate are expected to be between either 8
to 15 years or 20 to 40  years. The original maturities of substantially all  of
the fixed rate, level payment FHA Loans or VA Loans are expected to be 30 years.
 
     Mortgage loans underlying a FNMA Certificate may have annual interest rates
that  vary by  as much  as two percentage  points from  each other.  The rate of
interest payable on a FNMA Certificate is  equal to the lowest interest rate  of
any  mortgage  loan  in  the  related  pool,  less  a  specified  minimum annual
percentage representing servicing compensation and FNMA's guaranty fee. Under  a
regular servicing option (pursuant to which the mortgagee or each other servicer
assumes the entire risk of foreclosure losses), the annual interest rates on the
mortgage loans underlying a FNMA Certificate will be between 50 basis points and
250  basis  points greater  than is  its  annual pass-through  rate and  under a
special servicing option  (pursuant to which  FNMA assumes the  entire risk  for
foreclosure  losses), the annual interest rates on the mortgage loans underlying
a FNMA  Certificate will  generally be  between 55  basis points  and 255  basis
points  greater than the annual FNMA Certificate pass-through rate. If specified
in the  related  Prospectus  Supplement,  FNMA Certificates  may  be  backed  by
adjustable rate mortgages.
 
     FNMA  guarantees to  each registered holder  of a FNMA  Certificate that it
will distribute  amounts  representing  such  holder's  proportionate  share  of
scheduled  principal and interest  payments at the  applicable pass-through rate
provided for by such FNMA Certificate on the underlying mortgage loans,  whether
or  not received,  and such holder's  proportionate share of  the full principal
amount of any foreclosed or other  finally liquidated mortgage loan, whether  or
not  such principal amount is actually  recovered. The obligations of FNMA under
its guaranties are obligations solely of FNMA and are not backed by, or entitled
to, the full faith and  credit of the United  States. Although the Secretary  of
the Treasury of the United States has discretionary authority to lend FNMA up to
$2.25  billion outstanding at any time, neither the United States nor any agency
thereof is obligated to finance FNMA's operations or to assist FNMA in any other
manner. If FNMA were unable to satisfy its obligations, distributions to holders
of FNMA Certificates would  consist solely of payments  and other recoveries  on
the underlying mortgage loans and, accordingly, monthly distributions to holders
of  FNMA Certificates would  be affected by delinquent  payments and defaults on
such mortgage loans.
 
     FNMA Certificates evidencing interests in pools of mortgage loans formed on
or after May 1,  1985 (other than FNMA  Certificates backed by pools  containing
graduated  payment  mortgage  loans  or mortgage  loans  secured  by multifamily
projects) are available in book-entry form only. Distributions of principal  and
interest  on each FNMA Certificate will be made  by FNMA on the 25th day of each
month to the persons in whose name the FNMA Certificate is entered in the  books
of  the Federal Reserve Banks (or registered on the FNMA Certificate register in
the case of fully registered FNMA Certificates)  as of the close of business  on
the last day of the preceding month. With respect to FNMA Certificates issued in
book-entry form, distributions thereon will be made by wire, and with respect to
fully registered FNMA Certificates, distributions thereon will be made by check.
 
     The  FNMA Certificates included in a Trust Fund, and the related underlying
mortgage  loans,  may  have  characteristics  and  terms  different  from  those
described  above. Any such different characteristics and terms will be described
in the related Prospectus Supplement.
 
     Stripped Mortgage-Backed Securities.  Agency Securities may consist of  one
or more stripped mortgage-backed securities, each as described herein and in the
related  Prospectus  Supplement. Each  such  Agency Security  will  represent an
undivided interest in all or part of either the principal distributions (but not
the interest distributions) or the interest distributions (but not the principal
distributions), or  in some  specified  portion of  the principal  and  interest
distributions (but not all of such distributions) on certain FHLMC, FNMA or GNMA
Certificates.  The underlying securities will be held under a trust agreement by
FHLMC, FNMA or GNMA, each as trustee, or by another trustee named in the related
Prospectus Supplement. FHLMC, FNMA or  GNMA will guarantee each stripped  Agency
Security  to the same extent as such entity guarantees the underlying securities
backing such stripped Agency Security, unless otherwise specified in the related
Prospectus Supplement.
 
     Other  Agency  Securities.    If   specified  in  the  related   Prospectus
Supplement,  a Trust Fund  may include other  mortgage pass-through certificates
issued or guaranteed  by GNMA, FNMA  or FHLMC. The  characteristics of any  such
mortgage   pass-through  certificates  will  be  described  in  such  Prospectus
Supplement. If  so  specified,  a  combination  of  different  types  of  Agency
Securities may be held in a Trust Fund.
 
PRIVATE MORTGAGE-BACKED SECURITIES
 
     Private Mortgage-Backed Securities may consist of (a) mortgage pass-through
certificates or participation certificates evidencing an undivided interest in a
pool of mortgage loans or (b) collateralized mortgage
 
                                       17
 
<PAGE>

<PAGE>
obligations  secured by  mortgage loans. Private  Mortgage-Backed Securities may
include stripped mortgage-backed securities  representing an undivided  interest
in  all or a  part of either  the principal distributions  (but not the interest
distributions)  or   the  interest   distributions   (but  not   the   principal
distributions)  or  in  some specified  portion  of the  principal  and interest
distributions (but not  all of  such distributions) on  certain mortgage  loans.
Private  Mortgage-Backed Securities will have been  issued pursuant to a pooling
and servicing agreement, an indenture or similar agreement (a 'PMBS Agreement').
Unless  otherwise   specified  in   the  related   Prospectus  Supplement,   the
seller/servicer of the underlying mortgage loans will have entered into the PMBS
Agreement  with the trustee under such  PMBS Agreement (the 'PMBS Trustee'). The
PMBS Trustee  or its  agent, or  a custodian,  will possess  the mortgage  loans
underlying  such Private  Mortgage-Backed Security. Mortgage  loans underlying a
Private Mortgage-Backed  Security will  be  serviced by  a servicer  (the  'PMBS
Servicer')  directly or by  one or more  subservicers who may  be subject to the
supervision of the PMBS Servicer.
 
     The issuer of  the Private Mortgage-Backed  Securities (the 'PMBS  Issuer')
will  be  a  financial institution  or  other  entity engaged  generally  in the
business of mortgage  lending, a public  agency or instrumentality  of a  state,
local  or federal government, or a limited purpose corporation organized for the
purpose of, among other  things, establishing trusts  and acquiring and  selling
housing loans to such trusts and selling beneficial interests in such trusts. If
so  specified in the  related Prospectus Supplement,  the PMBS Issuer  may be an
affiliate of the Depositor. The obligations of the PMBS Issuer will generally be
limited to certain  representations and  warranties with respect  to the  assets
conveyed  by it  to the  related Trust Fund.  Unless otherwise  specified in the
related Prospectus Supplement, the PMBS Issuer  will not have guaranteed any  of
the   assets  conveyed  to  the  related  Trust  Fund  or  any  of  the  Private
Mortgage-Backed  Securities  issued  under  the  PMBS  Agreement.  Additionally,
although  the mortgage  loans underlying the  Private Mortgage-Backed Securities
may be guaranteed  by an  agency or instrumentality  of the  United States,  the
Private Mortgage-Backed Securities themselves will not be so guaranteed.
 
     Distributions  of  principal  and  interest will  be  made  on  the Private
Mortgage-Backed Securities  on the  dates specified  in the  related  Prospectus
Supplement.  The Private Mortgage-Backed  Securities may be  entitled to receive
nominal or no principal distributions  or nominal or no interest  distributions.
Principal and interest distributions will be made on the Private Mortgage-Backed
Securities by the PMBS Trustee or the PMBS Servicer. The PMBS Issuer or the PMBS
Servicer  may  have  the  right  to  repurchase  assets  underlying  the Private
Mortgage-Backed Securities after  a certain  date or  under other  circumstances
specified in the related Prospectus Supplement.
 
     The  mortgage loans  underlying the Private  Mortgage-Backed Securities may
consist of  fixed  rate, level  payment,  fully amortizing  loans  or  graduated
payment  mortgage loans, Buydown Loans, adjustable  rate mortgage loans or loans
having balloon or  other special payment  features. Such mortgage  loans may  be
secured by single family property or multifamily property or by an assignment of
the  proprietary lease  or occupancy agreement  relating to  a specific dwelling
within a Cooperative and the related shares issued by such Cooperative.
 
     The Prospectus Supplement for  a Series for which  the Trust Fund  includes
Private  Mortgage-Backed Securities  will specify (i)  the aggregate approximate
principal amount  and  type of  the  Private Mortgage-Backed  Securities  to  be
included  in the Trust Fund; (ii)  certain characteristics of the mortgage loans
that comprise the underlying assets  for the Private Mortgage-Backed  Securities
including  (A) the payment features of  such mortgage loans, (B) the approximate
aggregate principal balance, if known,  of underlying mortgage loans insured  or
guaranteed by a governmental entity, (C) the servicing fee or range of servicing
fees  with respect to the mortgage loans  and (D) the minimum and maximum stated
maturities of the underlying  mortgage loans at  origination; (iii) the  maximum
original term-to-stated maturity of the Private Mortgage-Backed Securities; (iv)
the  weighted  average term-to-stated  maturity  of the  Private Mortgage-Backed
Securities;  (v)  the   pass-through  or   certificate  rate   of  the   Private
Mortgage-Backed   Securities;   (vi)  the   weighted  average   pass-through  or
certificate rate  of  the Private  Mortgage-Backed  Securities; (vii)  the  PMBS
Issuer,  the PMBS Servicer (if other than  the PMBS Issuer) and the PMBS Trustee
for such Private Mortgage-Backed  Securities; (viii) certain characteristics  of
credit support, if any, such as reserve funds, insurance policies, surety bonds,
letters  of credit or  guaranties relating to the  mortgage loans underlying the
Private Mortgage-Backed Securities or to such Private Mortgage-Backed Securities
themselves; (ix)  the terms  on which  the underlying  mortgage loans  for  such
Private  Mortgage-Backed Securities may, or are  required to, be purchased prior
to their stated maturity or the  stated maturity of the Private  Mortgage-Backed
Securities;  and (x) the  terms on which  mortgage loans may  be substituted for
those originally underlying the Private Mortgage-Backed Securities.
 
                                       18
 
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<PAGE>
SUBSTITUTION OF MORTGAGE ASSETS
 
     Substitution of Mortgage Assets will be permitted in the event of  breaches
of representations and warranties with respect to any original Mortgage Asset or
in  the event the documentation with respect to any Mortgage Asset is determined
by the Trustee to be incomplete. The period during which such substitution  will
be  permitted generally will be indicated  in the related Prospectus Supplement.
The related Prospectus Supplement will describe any other conditions upon  which
Mortgage Assets may be substituted for Mortgage Assets initially included in the
Trust Fund.
 
                                USE OF PROCEEDS
 
     The  net proceeds to be received from  the sale of the Certificates will be
applied by the Depositor to the purchase  of Mortgage Assets or will be used  by
the  Depositor for  general corporate  purposes. The  Depositor expects  to sell
Certificates in Series from time to time, but the timing and amount of offerings
of Certificates will  depend on  a number of  factors, including  the volume  of
Mortgage   Assets  acquired   by  the  Depositor,   prevailing  interest  rates,
availability of funds and general market conditions.
 
                                 THE DEPOSITOR
 
     CWMBS, Inc., a Delaware corporation (the 'Depositor'), was organized on May
27, 1993 for the limited purpose of acquiring, owning and transferring  Mortgage
Assets  and selling interests therein or bonds secured thereby. The Depositor is
a subsidiary of Countrywide Credit Industries, Inc., a Delaware corporation. The
Depositor maintains its  principal office  at 155 North  Lake Avenue,  Pasadena,
California 91101-7139. Its telephone number is (818) 584-3547.
 
     Neither  the Depositor nor any of the Depositor's affiliates will ensure or
guarantee distributions on the Certificates of any Series.
 
                             MORTGAGE LOAN PROGRAM
 
     The Mortgage  Loans  will have  been  purchased by  the  Depositor,  either
directly  or through affiliates, from Sellers. Unless otherwise specified in the
related Prospectus Supplement, the Mortgage  Loans so acquired by the  Depositor
will have been originated in accordance with the underwriting criteria specified
below under 'Underwriting Standards'.
 
UNDERWRITING STANDARDS
 
     Unless  otherwise  specified  in the  related  Prospectus  Supplement, each
Seller will  represent  and  warrant  that  the  origination,  underwriting  and
collection  practices used  by such  Seller with  respect to  each Mortgage Loan
originated and/or sold by it to the Depositor or one of its affiliates have been
in all  respects  legal, prudent  and  customary  in the  mortgage  lending  and
servicing  business. As  to any  Mortgage Loan insured  by the  FHA or partially
guaranteed by  the VA,  the Seller  will  represent that  it has  complied  with
underwriting policies of the FHA or the VA, as the case may be.
 
     Underwriting  standards are applied by or on behalf of a lender to evaluate
the borrower's credit standing and repayment ability, and the value and adequacy
of the  mortgaged property  as collateral.  In general,  a prospective  borrower
applying  for a  mortgage loan  is required to  fill out  a detailed application
designed to provide to the underwriting officer pertinent credit information. As
part of  the description  of the  borrower's financial  condition, the  borrower
generally  is required to provide a current list of assets and liabilities and a
statement of income and  expenses, as well  as an authorization  to apply for  a
credit  report  which  summarizes  the  borrower's  credit  history  with  local
merchants and lenders and any record of bankruptcy. In most cases, an employment
verification is obtained  from an independent  source (typically the  borrower's
employer),  which  verification  reports  the  length  of  employment  with that
organization, the borrower's current salary and whether it is expected that  the
borrower  will continue such employment in the future. If a prospective borrower
is self-employed, the borrower  may be required to  submit copies of signed  tax
returns. The borrower may also be required to authorize verification of deposits
at financial institutions where the borrower has demand or savings accounts.
 
     In  determining the  adequacy of the  mortgaged property  as collateral, an
appraisal is made of  each property considered for  financing. The appraiser  is
required  to inspect the property and verify that  it is in good repair and that
construction, if new, has been completed.  The appraisal is based on the  market
value of comparable homes, the estimated rental income (if considered applicable
by the appraiser) and the cost of replacing the home.
 
                                       19
 
<PAGE>

<PAGE>
     Once   all  applicable  employment,  credit  and  property  information  is
received, a  determination  generally is  made  as to  whether  the  prospective
borrower  has sufficient  monthly income  available (i)  to meet  the borrower's
monthly obligations on the proposed  mortgage loan (generally determined on  the
basis of the monthly payments due in the year of origination) and other expenses
related  to the mortgaged property (such as property taxes and hazard insurance)
and (ii) to meet  monthly housing expenses and  other financial obligations  and
monthly   living  expenses.  The  underwriting  standards  applied  by  Sellers,
particularly with respect to the level of loan documentation and the mortgagor's
income and credit history, may be varied in appropriate cases where factors such
as low Loan-to-Value Ratios or other favorable credit exist.
 
     In the case  of a Mortgage  Loan secured  by a leasehold  interest in  real
property,  the title to which  is held by a third  party lessor, the Seller will
represent and warrant, among other things, that the remaining term of the  lease
and  any sublease is at  least five years longer than  the remaining term on the
Mortgage Note.
 
     Certain of the types of Mortgage Loans that may be included in a Trust Fund
are recently developed and may  involve additional uncertainties not present  in
traditional  types of  loans. For  example, certain  of such  Mortgage Loans may
provide for escalating  or variable payments  by the Mortgagor.  These types  of
Mortgage  Loans are underwritten on the basis  of a judgment that the Mortgagors
have the  ability to  make  the monthly  payments  required initially.  In  some
instances,  however,  a  Mortgagor's  income may  not  be  sufficient  to permit
continued loan payments as such payments increase. These types of Mortgage Loans
may also be  underwritten primarily upon  the basis of  Loan-to-Value Ratios  or
other favorable credit factors.
 
QUALIFICATIONS OF SELLERS
 
     Unless  otherwise  specified  in the  related  Prospectus  Supplement, each
Seller will be  required to satisfy  the qualifications set  forth herein.  Each
Seller  must be an institution experienced in originating and servicing mortgage
loans of the  type contained  in the related  Mortgage Pool  in accordance  with
accepted  practices  and  prudent  guidelines,  and  must  maintain satisfactory
facilities to originate and service those mortgage loans. Each Seller must be  a
seller/servicer  approved  by  either  FNMA  or FHLMC.  Each  Seller  must  be a
mortgagee approved by the  FHA or an institution  the deposit accounts in  which
are insured by the Federal Deposit Insurance Corporation.
 
REPRESENTATIONS BY SELLERS; REPURCHASES
 
     Each Seller will have made representations and warranties in respect of the
Mortgage  Loans sold by such  Seller and evidenced by  a Series of Certificates.
Such representations and  warranties unless  otherwise provided  in the  related
Prospectus  Supplement  generally include,  among other  things: (i)  that title
insurance (or in the  case of Mortgaged Properties  located in areas where  such
policies  are generally not  available, an attorney's  certificate of title) and
any required hazard insurance policy and Primary Mortgage Insurance Policy  were
effective at the origination of each Mortgage Loan other than Cooperative Loans,
and  that each policy (or certificate of title as applicable) remained in effect
on the date of purchase of the Mortgage Loan from the Seller by or on behalf  of
the  Depositor; (ii) that the  Seller had good title  to each such Mortgage Loan
and such Mortgage  Loan was subject  to no offsets,  defenses, counterclaims  or
rights  of rescission except to the  extent that any buydown agreement described
herein may forgive certain indebtedness of a Mortgagor; (iii) that each Mortgage
Loan constituted a valid first lien  on, or a first perfected security  interest
with  respect  to, the  Mortgaged Property  (subject  only to  permissible title
insurance exceptions, if applicable, and  certain other exceptions described  in
the  Agreement) and that the Mortgaged Property  was free from damage and was in
good repair; (iv) that there were no delinquent tax or assessment liens  against
the Mortgaged Property; (v) that no required payment on a Mortgage Loan was more
than  31  days delinquent  at any  time during  the twelve  months prior  to the
Cut-off Date; and (vi) that each Mortgage Loan was made in compliance with,  and
is  enforceable  under,  all  applicable  local,  state  and  federal  laws  and
regulations in all material respects.
 
     If so specified in the  related Prospectus Supplement, the  representations
and  warranties of a Seller in respect of a Mortgage Loan will be made not as of
the Cut-off Date but as of the date on which such Seller sold the Mortgage  Loan
to  the  Depositor  or  one  of  its  affiliates.  Under  such  circumstances, a
substantial period of time may  have elapsed between such  date and the date  of
initial  issuance of the  Series of Certificates evidencing  an interest in such
Mortgage Loan.  Since the  representations and  warranties of  a Seller  do  not
address  events that  may occur following  the sale  of a Mortgage  Loan by such
Seller, its repurchase obligation described below will not arise if the relevant
event that would otherwise have given rise to such an obligation with respect to
a Mortgage Loan  occurs after the  date of sale  of such Mortgage  Loan by  such
Seller  to  the Depositor  or its  affiliates. However,  the Depositor  will not
include any Mortgage Loan in  the Trust Fund for  any Series of Certificates  if
anything  has come to the  Depositor's attention that would  cause it to believe
that the
 
                                       20
 
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<PAGE>
representations and warranties of a Seller will not be accurate and complete  in
all material respects in respect of such Mortgage Loan as of the date of initial
issuance of the related Series of Certificates. If the Master Servicer is also a
Seller   of  Mortgage   Loans  with  respect   to  a   particular  Series,  such
representations will be in addition  to the representations and warranties  made
by the Master Servicer in its capacity as the Master Servicer.
 
     The  Master Servicer or the Trustee, if  the Master Servicer is the Seller,
will promptly notify the relevant Seller of any breach of any representation  or
warranty  made by it in respect of a Mortgage Loan that materially and adversely
affects the interests of  the Certificateholders in  such Mortgage Loan.  Unless
otherwise  specified in the related Prospectus Supplement, if such Seller cannot
cure such breach within  90 days after  notice from the  Master Servicer or  the
Trustee,  as the case may  be, then such Seller  will be obligated to repurchase
such Mortgage Loan from the Trust Fund  at a price (the 'Purchase Price')  equal
to  100% of  the outstanding  principal balance  thereof as  of the  date of the
repurchase plus accrued interest thereon to the first day of the month in  which
the  Purchase  Price  is  to  be distributed  at  the  Mortgage  Rate  (less any
unreimbursed Advances or amount payable as related servicing compensation if the
Seller is the Master Servicer  with respect to such  Mortgage Loan). If a  REMIC
election  is to be made with respect  to a Trust Fund, unless otherwise provided
in the related  Prospectus Supplement, the  Master Servicer or  a holder of  the
related residual certificate will be obligated to pay any prohibited transaction
tax  that may arise in connection with any such repurchase. The Master Servicer,
unless otherwise  specified  in  the  related  Prospectus  Supplement,  will  be
entitled  to reimbursement for any  such payment from the  assets of the related
Trust Fund  or  from  any  holder  of  the  related  residual  certificate.  See
'Description  of  the  Certificates  --  General'  herein  and  in  the  related
Prospectus Supplement. Except in those cases in which the Master Servicer is the
Seller, the Master Servicer will be  required under the applicable Agreement  to
enforce   this   obligation   for   the  benefit   of   the   Trustee   and  the
Certificateholders, following the practices  it would employ  in its good  faith
business  judgment  were it  the owner  of such  Mortgage Loan.  This repurchase
obligation will constitute  the sole remedy  available to Certificateholders  or
the Trustee for a breach of representation by a Seller.
 
     Neither  the Depositor nor the Master  Servicer (unless the Master Servicer
is the  Seller) will  be  obligated to  purchase a  Mortgage  Loan if  a  Seller
defaults  on its obligation to do so, and no assurance can be given that Sellers
will carry out their respective repurchase obligations with respect to  Mortgage
Loans.  However, to the extent that a breach of a representation and warranty of
a Seller may also  constitute a breach  of a representation  made by the  Master
Servicer,  the Master  Servicer may  have a  repurchase obligation  as described
below under  'The Pooling  and  Servicing Agreement  -- Assignment  of  Mortgage
Assets'.
 
                        DESCRIPTION OF THE CERTIFICATES
 
     Each  Series of Certificates will be issued pursuant to an Agreement, dated
as of the related Cut-off Date, among the Depositor, the Master Servicer and the
Trustee for the benefit of the holders  of the Certificates of such Series.  The
provisions  of  each  Agreement  will  vary depending  upon  the  nature  of the
Certificates to be issued thereunder and the nature of the related Trust Fund. A
form of an Agreement is an exhibit  to the Registration Statement of which  this
Prospectus  is a part. The following  summaries describe certain provisions that
may appear  in  each  Agreement.  The Prospectus  Supplement  for  a  Series  of
Certificates  will  describe any  provision of  the  Agreement relating  to such
Series that materially differs  from the description  thereof contained in  this
Prospectus.  The summaries do not purport to be complete and are subject to, and
are qualified in their entirety  by reference to, all  of the provisions of  the
Agreement  for  each  Series  of  Certificates  and  the  applicable  Prospectus
Supplement. The  Depositor  will  provide  a  copy  of  the  Agreement  (without
exhibits) relating to any Series without charge upon written request of a holder
of  record of a Certificate  of such Series addressed  to CWMBS, Inc., 155 North
Lake Avenue, Pasadena, California 91101-7139, Attention: Secretary.
 
GENERAL
 
     Unless otherwise specified in  the Prospectus Supplement, the  Certificates
of  each Series will be issued in  either fully registered or book-entry form in
the authorized  denominations specified  in the  related Prospectus  Supplement,
will evidence specified beneficial ownership interests in the related Trust Fund
created  pursuant to the related Agreement and  will not be entitled to payments
in respect of the  assets included in  any other Trust  Fund established by  the
Depositor.  The Certificates will not represent  obligations of the Depositor or
any affiliate  of the  Depositor. The  Mortgage Assets  will not  be insured  or
guaranteed  by  any  governmental  entity  or  other  person,  unless  otherwise
specified in the related Prospectus Supplement. Each Trust Fund will consist of,
to the extent provided  in the related Agreement,  (i) the Mortgage Assets  that
from time to time are subject to the related Agreement (exclusive of any amounts
specified  in the related Prospectus Supplement (the 'Retained Interest')); (ii)
such assets as from  time to time  are required to be  deposited in the  related
Certificate Account;
 
                                       21
 
<PAGE>

<PAGE>
(iii)  property that secured a  Mortgage Loan and that  is acquired on behalf of
the Certificateholders by foreclosure or deed  in lieu of foreclosure; and  (iv)
any  Primary Mortgage Insurance  Policies, FHA Insurance  and VA Guaranties, and
any other insurance policies or other forms of credit enhancement required to be
maintained pursuant to  the related Agreement.  If so specified  in the  related
Prospectus  Supplement,  a  Trust Fund  may  also  include one  or  more  of the
following: reinvestment income on  payments received on  the Mortgage Assets,  a
reserve  fund,  a mortgage  pool insurance  policy,  a special  hazard insurance
policy, a  bankruptcy  bond, one  or  more letters  of  credit, a  surety  bond,
guaranties or similar instruments or other agreements.
 
     Each  Series of Certificates  will be issued  in one or  more classes. Each
class of  Certificates of  a  Series will  evidence  beneficial ownership  of  a
specified  percentage (which may  be 0%) or portion  of future interest payments
and a specified  percentage (which  may be 0%)  or portion  of future  principal
payments  on  the  Mortgage  Assets  in the  related  Trust  Fund.  A  Series of
Certificates may include one or more classes that are senior in right to payment
to one or more other classes of  Certificates of such Series. Certain Series  or
classes  of Certificates may  be covered by insurance  policies, surety bonds or
other forms of credit enhancement, in each  case as described herein and in  the
related  Prospectus Supplement. One or more  classes of Certificates of a Series
may  be  entitled  to  receive  distributions  of  principal,  interest  or  any
combination  thereof.  Distributions  on one  or  more  classes of  a  Series of
Certificates may  be  made  prior  to  one or  more  other  classes,  after  the
occurrence of specified events, in accordance with a schedule or formula, on the
basis  of collections  from designated  portions of  the Mortgage  Assets in the
related Trust Fund, or on  a different basis, in each  case as specified in  the
related  Prospectus Supplement. The timing and amounts of such distributions may
vary among  classes  or  over  time  as  specified  in  the  related  Prospectus
Supplement.
 
     Unless   otherwise   specified  in   the  related   Prospectus  Supplement,
distributions of principal and interest (or, where applicable, of principal only
or interest only) on  the related Certificates  will be made  by the Trustee  on
each Distribution Date (i.e., monthly, quarterly, semi-annually or at such other
intervals  and on the  dates as are  specified in the  Prospectus Supplement) in
proportion to the  percentages specified in  the related Prospectus  Supplement.
Distributions  will be made to  the persons in whose  names the Certificates are
registered at  the close  of business  on  the dates  specified in  the  related
Prospectus  Supplement (each,  a 'Record Date').  Distributions will  be made by
check or  money order  mailed to  the persons  entitled thereto  at the  address
appearing   in  the  register  maintained   for  holders  of  Certificates  (the
'Certificate Register') or, if specified  in the related Prospectus  Supplement,
in  the case of  Certificates that are  of a certain  minimum denomination, upon
written request by  the Certificateholder,  by wire  transfer or  by such  other
means  as are described therein; provided,  however, that the final distribution
in retirement  of the  Certificates  will be  made  only upon  presentation  and
surrender  of the Certificates at  the office or agency  of the Trustee or other
person specified in the notice to Certificateholders of such final distribution.
 
     The Certificates  will  be  freely transferable  and  exchangeable  at  the
Corporate  Trust Office of  the Trustee as  set forth in  the related Prospectus
Supplement. No service charge will be  made for any registration of exchange  or
transfer of Certificates of any Series, but the Trustee may require payment of a
sum sufficient to cover any related tax or other governmental charge.
 
     Under  current law the purchase and holding by or on behalf of any employee
benefit plan or  other retirement arrangement  (including individual  retirement
accounts  and annuities,  Keogh plans and  collective investment  funds in which
such plans,  accounts or  arrangements are  invested) subject  to provisions  of
ERISA  or the Code of certain classes  of Certificates may result in 'prohibited
transactions'  within  the   meaning  of   ERISA  and  the   Code.  See   'ERlSA
Considerations'  herein. Unless  otherwise specified  in the  related Prospectus
Supplement, transfer  of such  Certificates will  not be  registered unless  the
transferee  (i) represents that it  is not, and is  not purchasing on behalf of,
any such plan,  account or arrangement  or (ii) provides  an opinion of  counsel
satisfactory  to  the  Trustee  and  the Depositor  that  the  purchase  of such
Certificates by or on behalf of such plan, account or arrangement is permissible
under applicable law and  will not subject the  Trustee, the Master Servicer  or
the  Depositor to any obligation or liability in addition to those undertaken in
the Agreement.
 
     As to each Series, an election may be made to treat the related Trust  Fund
or designated portions thereof as a 'real estate mortgage investment conduit' or
'REMIC'  as defined in the Code.  The related Prospectus Supplement will specify
whether a  REMIC election  is to  be made.  Alternatively, the  Agreement for  a
Series  may provide that a  REMIC election may be made  at the discretion of the
Depositor or the Master Servicer and may be made only if certain conditions  are
satisfied.  As to any  such Series, the  terms and provisions  applicable to the
making of  a  REMIC  election,  as  well as  any  material  federal  income  tax
consequences  to Certificateholders not otherwise  described herein, will be set
forth in the  related Prospectus Supplement.  If such an  election is made  with
respect  to a Series,  one of the  classes will be  designated as evidencing the
sole class of 'residual interests' in the related REMIC, as defined in the Code.
All other classes of Certificates in such a
 
                                       22
 
<PAGE>

<PAGE>
Series will constitute 'regular interests' in  the related REMIC, as defined  in
the  Code. As to  each Series with  respect to which  a REMIC election  is to be
made, the Master Servicer or a  holder of the related residual certificate  will
be  obligated to take  all actions required  in order to  comply with applicable
laws and regulations  and will be  obligated to pay  any prohibited  transaction
taxes. The Master Servicer, unless otherwise specified in the related Prospectus
Supplement,  will be  entitled to  reimbursement for  any such  payment from the
assets of the Trust Fund or from any holder of the related residual certificate.
 
DISTRIBUTIONS ON CERTIFICATES
 
     General.  In general, the method of determining the amount of distributions
on a  particular  Series of  Certificates  will depend  on  the type  of  credit
support,  if  any,  that  is  used with  respect  to  such  Series.  See 'Credit
Enhancement' herein and in  the related Prospectus  Supplement. Set forth  below
are  descriptions of various methods that may be used to determine the amount of
distributions on  the  Certificates  of  a  particular  Series.  The  Prospectus
Supplement  for each Series of Certificates will  describe the method to be used
in determining the amount of distributions on the Certificates of such Series.
 
     Distributions allocable to  principal of and  interest on the  Certificates
will  be made by  the Trustee out  of, and only  to the extent  of, funds in the
related Certificate Account,  including any funds  transferred from any  Reserve
Fund.  As between Certificates of different classes and as between distributions
of principal (and, if applicable, between distributions of Principal Prepayments
and scheduled payments  of principal)  and interest, distributions  made on  any
Distribution  Date  will  be  applied as  specified  in  the  related Prospectus
Supplement. Unless  otherwise specified  in the  related Prospectus  Supplement,
distributions  to  any  class of  Certificates  will  be made  pro  rata  to all
Certificateholders of that class.
 
     Available Funds.  All distributions on  the Certificates of each Series  on
each Distribution Date will be made from the Available Funds, in accordance with
the  terms described in  the related Prospectus Supplement  and specified in the
Agreement. Unless  otherwise  provided  in the  related  Prospectus  Supplement,
'Available  Funds' for each Distribution Date will generally equal the amount on
deposit in the  related Certificate Account  on such Distribution  Date (net  of
related  fees and expenses payable by the related Trust Fund) other than amounts
to be held therein for distribution on future Distribution Dates.
 
     Distributions of  Interest.   Unless  otherwise  specified in  the  related
Prospectus Supplement, interest will accrue on the aggregate Certificate Balance
(or,  in the  case of Certificates  entitled only to  distributions allocable to
interest, the  aggregate notional  amount) of  each class  of Certificates  (the
'Class  Certificate  Balance') entitled  to  interest at  the  Pass-Through Rate
(which may be a fixed rate or a rate adjustable as specified in such  Prospectus
Supplement)  from  the date  and for  the periods  specified in  such Prospectus
Supplement. To the extent funds are available therefor, interest accrued  during
each  such specified period  on each class of  Certificates entitled to interest
(other than a class of Certificates that provides for interest that accrues, but
is not currently payable, referred to hereafter as 'Accrual Certificates')  will
be  distributable on the Distribution Dates  specified in the related Prospectus
Supplement  until  the  Class  Certificate  Balance  of  such  class  has   been
distributed   in  full  or,  in  the  case  of  Certificates  entitled  only  to
distributions allocable to interest, until the aggregate notional amount of such
Certificates is reduced  to zero or  for the  period of time  designated in  the
related   Prospectus  Supplement.  The  original  Certificate  Balance  of  each
Certificate will equal  the aggregate  distributions allocable  to principal  to
which  such Certificate is  entitled. Unless otherwise  specified in the related
Prospectus Supplement, distributions allocable  to interest on each  Certificate
that  is not entitled to distributions allocable to principal will be calculated
based on  the notional  amount of  such Certificate.  The notional  amount of  a
Certificate  will not  evidence an interest  in or  entitlement to distributions
allocable to principal but will be used solely for convenience in expressing the
calculation of interest and for certain other purposes.
 
     With respect to any  class of Accrual Certificates,  any interest that  has
accrued  but is not paid on a given Distribution Date will be added to the Class
Certificate Balance of  such class  of Certificates on  that Distribution  Date.
Unless  otherwise specified in the  related Prospectus Supplement, distributions
of interest on each class of  Accrual Certificates will commence only after  the
occurrence  of the events specified in  such Prospectus Supplement and, prior to
such  time,  the  beneficial  ownership  interest  of  such  class  of   Accrual
Certificates in the Trust Fund, as reflected in the Class Certificate Balance of
such  class of Accrual Certificates, will  increase on each Distribution Date by
the amount of interest that accrued on such class of Accrual Certificates during
the  preceding  interest  accrual  period  but  that  was  not  required  to  be
distributed to such class on such Distribution
 
                                       23
 
<PAGE>

<PAGE>
Date.  Any such class of Accrual Certificates will thereafter accrue interest on
its outstanding Class Certificate Balance as so adjusted.
 
     Distributions of  Principal.   Unless otherwise  specified in  the  related
Prospectus   Supplement,  the  Class   Certificate  Balance  of   any  class  of
Certificates entitled to distributions of  principal will be the original  Class
Certificate  Balance of such class of  Certificates specified in such Prospectus
Supplement, reduced  by  all  distributions  reported to  the  holders  of  such
Certificates  as  allocable  to  principal  and  (i)  in  the  case  of  Accrual
Certificates, unless otherwise specified  in the related Prospectus  Supplement,
increased  by all  interest accrued but  not then distributable  on such Accrual
Certificates and  (ii)  in the  case  of adjustable  rate  Certificates,  unless
otherwise  specified in the related Prospectus Supplement, subject to the effect
of negative amortization.  The related  Prospectus Supplement  will specify  the
method by which the amount of principal to be distributed on the Certificates on
each  Distribution Date will be  calculated and the manner  in which such amount
will be allocated among the classes of Certificates entitled to distributions of
principal.
 
     If so provided in the related Prospectus Supplement, one or more classes of
Senior Certificates  will  be entitled  to  receive all  or  a  disproportionate
percentage  of the  payments of  principal that  are received  from borrowers in
advance of  their  scheduled  due  dates and  are  not  accompanied  by  amounts
representing scheduled interest due after the month of such payments ('Principal
Prepayments')  in the percentages and under the circumstances or for the periods
specified in  such  Prospectus  Supplement. Any  such  allocation  of  Principal
Prepayments  to such class  or classes of  Certificates will have  the effect of
accelerating the amortization of such  Senior Certificates while increasing  the
interests  evidenced  by  the  Subordinated  Certificates  in  the  Trust  Fund.
Increasing the interests of  the Subordinated Certificates  relative to that  of
the  Senior  Certificates  is  intended  to  preserve  the  availability  of the
subordination  provided   by   the  Subordinated   Certificates.   See   'Credit
Enhancement -- Subordination' herein and 'Credit Enhancement -- Subordination of
the Subordinated Certificates' in the related Prospectus Supplement.
 
     Unscheduled   Distributions.    If  specified  in  the  related  Prospectus
Supplement, the Certificates will be subject to receipt of distributions  before
the  next scheduled Distribution Date under  the circumstances and in the manner
described below and in  such Prospectus Supplement.  If applicable, the  Trustee
will  be required to make  such unscheduled distributions on  the day and in the
amount specified in  the related  Prospectus Supplement if,  due to  substantial
payments  of principal (including Principal Prepayments) on the Mortgage Assets,
the Trustee  or the  Master  Servicer determines  that  the funds  available  or
anticipated to be available from the Certificate Account and, if applicable, any
Reserve  Fund,  may  be  insufficient  to  make  required  distributions  on the
Certificates on  such  Distribution  Date. Unless  otherwise  specified  in  the
related  Prospectus Supplement, the amount  of any such unscheduled distribution
that is allocable to principal will  not exceed the amount that would  otherwise
have  been required to  be distributed as  principal on the  Certificates on the
next Distribution Date.  Unless otherwise  specified in  the related  Prospectus
Supplement,   all  unscheduled  distributions  will   include  interest  at  the
applicable  Pass-Through  Rate  (if  any)  on  the  amount  of  the  unscheduled
distribution  allocable to principal for the period and to the date specified in
such Prospectus Supplement.
 
     Unless otherwise  specified  in  the  related  Prospectus  Supplement,  all
distributions  allocable to  principal in  any unscheduled  distribution will be
made in  the same  priority and  manner  as distributions  of principal  on  the
Certificates  would  have been  made  on the  next  Distribution Date,  and with
respect  to  Certificates  of  the  same  class,  unscheduled  distributions  of
principal  will  be  made  on  a  pro  rata  basis.  Notice  of  any unscheduled
distribution  will  be  given  by  the  Trustee  prior  to  the  date  of   such
distribution.
 
ADVANCES
 
     Unless  otherwise provided in the related Prospectus Supplement, the Master
Servicer will be required to advance  on or before each Distribution Date  (from
its  own funds, funds advanced by Sub-Servicers or funds held in the Certificate
Account for future distributions to Certificateholders), an amount equal to  the
aggregate  of payments  of principal  and interest  that were  delinquent on the
related Determination Date, subject to the Master Servicer's determination  that
such  advances  will be  recoverable out  of  late payments  by obligors  on the
Mortgage Assets, Liquidation Proceeds, Insurance  Proceeds or otherwise. In  the
case  of Cooperative Loans, the Master Servicer also will be required to advance
any unpaid  maintenance fees  and other  charges under  the related  proprietary
leases as specified in the related Prospectus Supplement.
 
     In making Advances, the Master Servicer will endeavor to maintain a regular
flow  of scheduled interest and principal payments to Certificateholders, rather
than to guarantee or insure against losses.  If Advances are made by the  Master
Servicer from cash being held for future distribution to Certificateholders, the
Master Servicer
 
                                       24
 
<PAGE>

<PAGE>
will  replace such funds on or before any future Distribution Date to the extent
that funds in the applicable Certificate Account on such Distribution Date would
be  less  than  the  amount  required  to  be  available  for  distributions  to
Certificateholders on such date. Any Advances will be reimbursable to the Master
Servicer out of recoveries on the specific Mortgage Assets with respect to which
such  Advances were made (e.g., late payments  made by the related obligors, any
related Insurance Proceeds,  Liquidation Proceeds  or proceeds  of any  Mortgage
Loan  repurchased by the Depositor,  a Sub-Servicer or a  Seller pursuant to the
related Agreement).  In  addition, Advances  by  the Master  Servicer  (and  any
advances by a Sub-Servicer) also will be reimbursable to the Master Servicer (or
Sub-Servicer) from cash otherwise distributable to Certificateholders (including
Senior  Certificateholders) to  the extent  that the  Master Servicer determines
that any  such  Advances  previously  made are  not  ultimately  recoverable  as
described  in the immediately preceding sentence.  The Master Servicer also will
be obligated  to make  Advances,  to the  extent  recoverable out  of  Insurance
Proceeds,  Liquidation Proceeds  or otherwise, in  respect of  certain taxes and
insurance premiums not paid by Mortgagors  on a timely basis. Funds so  advanced
are  reimbursable  to  the  Master  Servicer  to  the  extent  permitted  by the
Agreement. If specified in the related Prospectus Supplement, the obligations of
the Master Servicer to make Advances may be supported by a cash advance  reserve
fund,  a surety  bond or other  arrangement, in  each case as  described in such
Prospectus Supplement.
 
REPORTS TO CERTIFICATEHOLDERS
 
     Prior to or concurrently with each distribution on a Distribution Date  and
except as otherwise set forth in an applicable Prospectus Supplement, the Master
Servicer  or the Trustee will furnish to each Certificateholder of record of the
related Series  a statement  setting forth,  to the  extent applicable  to  such
Series of Certificates, among other things:
 
          (i) the amount of such distribution allocable to principal, separately
     identifying  the aggregate amount  of any Principal  Prepayments and, if so
     specified  in  the  related  Prospectus  Supplement,  prepayment  penalties
     included therein;
 
          (ii) the amount of such distribution allocable to interest;
 
          (iii) the amount of any Advance;
 
          (iv)  the aggregate amount (a) otherwise allocable to the Subordinated
     Certificateholders on such  Distribution Date  and (b)  withdrawn from  the
     Reserve  Fund, if any, that  is included in the  amounts distributed to the
     Certificateholders;
 
          (v) the Class Certificate Balance or notional amount of each class  of
     the  related Series after giving effect to the distribution of principal on
     such Distribution Date;
 
          (vi) the  percentage  of principal  payments  on the  Mortgage  Assets
     (excluding  prepayments), if any, which each such class will be entitled to
     receive on the following Distribution Date;
 
          (vii) the  percentage of  Principal Prepayments  with respect  to  the
     Mortgage  Assets, if any, which each such class will be entitled to receive
     on the following Distribution Date;
 
          (viii) the related  amount of the  servicing compensation retained  or
     withdrawn  from the  Certificate Account  by the  Master Servicer,  and the
     amount of additional servicing compensation received by the Master Servicer
     attributable to  penalties, fees,  excess  Liquidation Proceeds  and  other
     similar charges and items;
 
          (ix) the number and aggregate principal balances of Mortgage Loans (A)
     delinquent  (exclusive of Mortgage Loans in  foreclosure) (1) 1 to 30 days,
     (2) 31 to 60 days,  (3) 61 to 90  days and (4) 91 or  more days and (B)  in
     foreclosure  and delinquent (1) 1 to 30 days,  (2) 31 to 60 days, (3) 61 to
     90 days and (4) 91 or  more days, as of the  close of business on the  last
     day of the calendar month preceding such Distribution Date;
 
          (x)  the book value of any real estate acquired through foreclosure or
     grant of a deed in lieu of foreclosure;
 
          (xi) the Pass-Through  Rate, if  adjusted from  the date  of the  last
     statement,  of  any  such  class  expected to  be  applicable  to  the next
     distribution to such class;
 
          (xii) if applicable, the amount remaining  in the Reserve Fund at  the
     close of business on the Distribution Date;
 
          (xiii)  the Pass-Through Rate  as of the day  prior to the immediately
     preceding Distribution Date; and
 
                                       25
 
<PAGE>

<PAGE>
          (xiv) any amounts remaining under letters of credit, pool policies  or
     other forms of credit enhancement.
 
     Where  applicable, any amount set forth above  may be expressed as a dollar
amount per  single  Certificate of  the  relevant class  having  the  Percentage
Interest   specified  in  the  related  Prospectus  Supplement.  The  report  to
Certificateholders for  any Series  of Certificates  may include  additional  or
other information of a similar nature to that specified above.
 
     In  addition, within  a reasonable  period of  time after  the end  of each
calendar  year,  the  Master  Servicer  or   the  Trustee  will  mail  to   each
Certificateholder  of record at any time during  such calendar year a report (a)
as to  the aggregate  of amounts  reported pursuant  to (i)  and (ii)  for  such
calendar  year or, in  the event such  person was a  Certificateholder of record
during a portion of such calendar year, for the applicable portion of such  year
and (b) such other customary information as may be deemed necessary or desirable
for Certificateholders to prepare their tax returns.
 
CATEGORIES OF CLASSES OF CERTIFICATES
 
     In  general,  classes  of  pass-through  certificates  fall  into different
categories. The following chart identifies and generally defines certain of  the
more  typical categories. The Prospectus Supplement for a series of Certificates
may identify  the  classes  which  comprise such  Series  by  reference  to  the
following categories.
 
<TABLE>
<CAPTION>
CATEGORIES OF CLASSES                                              DEFINITION
<S>                             <C>
                                                                 PRINCIPAL TYPES
Accretion Directed............  A  class  that  receives  principal  payments  from  the  accreted  interest from
                                specified Accrual Classes. An Accretion Directed Class also may receive principal
                                payments from principal paid on the underlying Mortgage Assets or other assets of
                                the Trust Fund for the related Series.
Component Certificates........  A class  consisting of  'Components.'  The Components  of  a class  of  Component
                                Certificates may have different principal and/or interest payment characteristics
                                but  together constitute a single  class. Each Component of  a class of Component
                                Certificates may be identified as falling into  one or more of the categories  in
                                this chart.
Notional Amount
  Certificates................  A  class having no principal balance and bearing interest on the related notional
                                amount. The notional amount is used for purposes of the determination of interest
                                distributions.
Planned Principal Class (also
  sometimes referred to as
  'PACs').....................  A class that  is designed  to receive  principal payments  using a  predetermined
                                principal  balance schedule derived by assuming two constant prepayment rates for
                                the underlying  Mortgage  Assets. These  two  rates  are the  endpoints  for  the
                                'structuring  range'  for  the  Planned Principal  Class.  The  Planned Principal
                                Classes in any Series of Certificates may be subdivided into different categories
                                (e.g., Primary Planned Principal Classes, Secondary Planned Principal Classes and
                                so forth) having different effective  structuring ranges and different  principal
                                payment  priorities. The  structuring range  for the  Secondary Planned Principal
                                Class of a  Series of Certificates  will be  narrower than that  for the  Primary
                                Planned Principal Class of such Series.
Scheduled Principal Class.....  A  class that  is designed  to receive  principal payments  using a predetermined
                                principal balance schedule but is not designated as a Planned Principal Class  or
                                Targeted  Principal Class. In many cases, the schedule is derived by assuming two
                                constant prepayment rates for the underlying Mortgage Assets. These two rates are
                                the endpoints for the 'structuring range' for the Scheduled Principal Class.
</TABLE>
 
                                       26
 
<PAGE>

<PAGE>
 
<TABLE>
<CAPTION>
CATEGORIES OF CLASSES                                              DEFINITION
<S>                             <C>
Sequential Pay................  Classes that receive  principal payments in  a prescribed sequence,  that do  not
                                have  predetermined principal balance schedules  and that under all circumstances
                                receive payments of principal  continuously from the  first Distribution Date  on
                                which they receive principal until they are retired. A single class that receives
                                principal  payments  before or  after all  other  classes in  the same  Series of
                                Certificates may be identified as a Sequential Pay Class.
Strip.........................  A class  that  receives a  constant  proportion,  or 'strip,'  of  the  principal
                                payments on the underlying Mortgage Assets or other assets of the Trust Fund.
Support Class (also sometimes
  referred to as 'companion
  classes')...................  A  class  that  receives principal  payments  on  any Distribution  Date  only if
                                scheduled payments  have  been  made  on  specified  Planned  Principal  Classes,
                                Targeted Principal Classes and/or Scheduled Principal Classes.
Targeted Principal Class (also
  sometimes referred to as
  'TACs').....................  A  class that  is designed  to receive  principal payments  using a predetermined
                                principal balance schedule derived by assuming a single constant prepayment  rate
                                for the underlying Mortgage Assets.
 
                                                                 INTEREST TYPES
Fixed Rate....................  A class with an interest rate that is fixed throughout the life of the class.
Floating Rate.................  A  class with an interest  rate that resets periodically  based upon a designated
                                index and that varies directly with changes in such index.
Inverse Floating Rate.........  A class with an  interest rate that resets  periodically based upon a  designated
                                index and that varies inversely with changes in such index.
Variable Rate.................  A  class with  an interest  rate that  resets periodically  and is  calculated by
                                reference to the  rate or  rates of interest  applicable to  specified assets  or
                                instruments (e.g., the Mortgage Rates borne by the underlying Mortgage Loans).
Interest Only.................  A class that receives some or all of the interest payments made on the underlying
                                Mortgage  Assets or other  assets of the  Trust Fund and  little or no principal.
                                Interest Only  Classes have  either a  nominal principal  balance or  a  notional
                                amount. A nominal principal balance represents actual principal that will be paid
                                on  the class. It is referred to as  nominal since it is extremely small compared
                                to other  classes.  A notional  amount  is the  amount  used as  a  reference  to
                                calculate  the  amount of  interest due  on an  Interest Only  Class that  is not
                                entitled to any distributions in respect of principal.
Principal Only................  A class that does not bear interest and is entitled to receive only distributions
                                in respect of principal.
Partial Accrual...............  A class that accretes a portion of the amount of accrued interest thereon,  which
                                amount  will be added to  the principal balance of  such class on each applicable
                                Distribution Date, with the remainder of such accrued interest to be  distributed
                                currently  as  interest  on  such  class. Such  accretion  may  continue  until a
                                specified event has occurred or until such Partial Accrual Class is retired.
Accrual.......................  A class that accretes the amount  of accrued interest otherwise distributable  on
                                such  class, which amount will be added  as principal to the principal balance of
                                such class  on each  applicable Distribution  Date. Such  accretion may  continue
                                until some specified event has occurred or until such Accrual Class is retired.
</TABLE>
 
                                       27
 
<PAGE>

<PAGE>
INDICES APPLICABLE TO FLOATING RATE AND INVERSE FLOATING RATE CLASSES
 
LIBOR
 
     Unless  otherwise specified  in the  related Prospectus  Supplement, on the
LIBOR Determination Date for each class of Certificates of a Series as to  which
the  applicable interest rate is determined by reference to an index denominated
as LIBOR,  the Person  designated  in the  related Agreement  (the  'Calculation
Agent') will determine LIBOR by reference to the quotations, as set forth on the
Reuters  Screen  LIBO  Page  (as  defined  in  the  International  Swap  Dealers
Association, Inc.  Code  of Standard  Wording,  Assumptions and  Provisions  for
Swaps,  1986 Edition),  offered by  the principal London  office of  each of the
designated reference banks meeting the criteria set forth herein (the 'Reference
Banks') for making one-month United States  dollar deposits in leading banks  in
the  London  Interbank market,  as of  11:00  a.m. (London  time) on  such LIBOR
Determination Date. In  lieu of relying  on the quotations  for those  Reference
Banks  that appear at such time on the Reuters Screen LIBO Page, the Calculation
Agent will  request  each  of  the  Reference  Banks  to  provide  such  offered
quotations at such time.
 
     LIBOR   will  be  established  by  the  Calculation  Agent  on  each  LIBOR
Determination Date as follows:
 
          (a) If on  any LIBOR Determination  Date two or  more Reference  Banks
     provide such offered quotations, LIBOR for the next Interest Accrual Period
     shall be the arithmetic mean of such offered quotations (rounded upwards if
     necessary to the nearest whole multiple of 1/32%).
 
          (b)  If  on any  LIBOR  Determination Date  only  one or  none  of the
     Reference Banks  provides  such  offered quotations,  LIBOR  for  the  next
     Interest  Accrual Period shall be  whichever is the higher  of (i) LIBOR as
     determined on the  previous LIBOR  Determination Date or  (ii) the  Reserve
     Interest  Rate. The  'Reserve Interest  Rate' shall  be the  rate per annum
     which the Calculation Agent determines to be either (i) the arithmetic mean
     (rounded upwards if necessary  to the nearest whole  multiple of 1/32%)  of
     the  one-month United States dollar lending  rates that New York City banks
     selected by  the  Calculation Agent  are  quoting, on  the  relevant  LIBOR
     Determination  Date, to the principal London offices of at least two of the
     Reference Banks  to  which such  quotations  are,  in the  opinion  of  the
     Calculation  Agent being so made, or (ii) in the event that the Calculation
     Agent can determine no  such arithmetic mean,  the lowest one-month  United
     States  dollar  lending rate  which  New York  City  banks selected  by the
     Calculation Agent are quoting on  such LIBOR Determination Date to  leading
     European banks.
 
          (c)  If on any LIBOR  Determination Date for a  class specified in the
     related Prospectus Supplement,  the Calculation  Agent is  required but  is
     unable  to determine  the Reserve Interest  Rate in the  manner provided in
     paragraph (b) above, LIBOR  for the next Interest  Accrual Period shall  be
     LIBOR  as determined on the preceding  LIBOR Determination Date, or, in the
     case of the first LIBOR Determination Date, LIBOR shall be deemed to be the
     per annum rate specified as such in the related Prospectus Supplement.
 
     Each Reference Bank (i) shall be a leading bank engaged in transactions  in
Eurodollar  deposits in  the international  Eurocurrency market;  (ii) shall not
control, be  controlled by,  or be  under common  control with  the  Calculation
Agent;  and (iii) shall have an established  place of business in London. If any
such Reference  Bank  should  be unwilling  or  unable  to act  as  such  or  if
appointment  of  any such  Reference Bank  is  terminated, another  leading bank
meeting the criteria specified above will be appointed.
 
     The establishment  of  LIBOR  on  each  LIBOR  Determination  Date  by  the
Calculation Agent and its calculation of the rate of interest for the applicable
classes  for  the  related Interest  Accrual  Period  shall (in  the  absence of
manifest error) be final and binding.
 
COFI
 
     The Eleventh District  Cost of  Funds Index  is designed  to represent  the
monthly  weighted average  cost of  funds for  savings institutions  in Arizona,
California and Nevada that are member institutions of the Eleventh Federal  Home
Loan  Bank District  (the 'Eleventh  District'). The  Eleventh District  Cost of
Funds Index for a particular month reflects the interest costs paid on all types
of funds held  by Eleventh  District member  institutions and  is calculated  by
dividing  the cost of  funds by the average  of the total  amount of those funds
outstanding at the end of that month and of the prior month and annualizing  and
adjusting  the result  to reflect  the actual number  of days  in the particular
month. If necessary, before these  calculations are made, the component  figures
are  adjusted  by the  Federal Home  Loan  Bank of  San Francisco  ('FHLBSF') to
neutralize the
 
                                       28
 
<PAGE>

<PAGE>
effect of events such  as member institutions leaving  the Eleventh District  or
acquiring institutions outside the Eleventh District. The Eleventh District Cost
of  Funds Index is weighted to reflect the relative amount of each type of funds
held at the end of the relevant month. The major components of funds of Eleventh
District member  institutions are:  (i) savings  deposits, (ii)  time  deposits,
(iii)  FHLBSF advances, (iv) repurchase agreements and (v) all other borrowings.
Because the component funds  represent a variety of  maturities whose costs  may
react  in different ways  to changing conditions, the  Eleventh District Cost of
Funds Index does not necessarily reflect current market rates.
 
     A number of factors affect the performance of the Eleventh District Cost of
Funds Index, which may cause it to move in a manner different from indices  tied
to  specific  interest rates,  such as  United States  Treasury Bills  or LIBOR.
Because the liabilities upon which the Eleventh District Cost of Funds Index  is
based  were issued  at various  times under  various market  conditions and with
various  maturities,  the  Eleventh  District  Cost  of  Funds  Index  may   not
necessarily  reflect the prevailing market interest  rates on new liabilities of
similar maturities. Moreover,  as stated  above, the Eleventh  District Cost  of
Funds  Index is  designed to  represent the average  cost of  funds for Eleventh
District savings institutions for the  month prior to the  month in which it  is
due to be published. Additionally, the Eleventh District Cost of Funds Index may
not  necessarily move  in the  same direction  as market  interest rates  at all
times, since as  longer term deposits  or borrowings mature  and are renewed  at
prevailing  market interest rates, the Eleventh  District Cost of Funds Index is
influenced by the  differential between  the prior and  the new  rates on  those
deposits  or borrowings. In addition, movements of the Eleventh District Cost of
Funds Index, as compared to other  indices tied to specific interest rates,  may
be  affected by changes instituted by the FHLBSF in the method used to calculate
the Eleventh District Cost of Funds Index.
 
     The FHLBSF  publishes the  Eleventh District  Cost of  Funds Index  in  its
monthly Information Bulletin. Any individual may request regular receipt by mail
of Information Bulletins by writing the Federal Home Loan Bank of San Francisco,
P.O.  Box 7948,  600 California Street,  San Francisco, California  94120, or by
calling (415) 616-1000. The  Eleventh District Cost of  Funds Index may also  be
obtained by calling the FHLBSF at (415) 616-2600.
 
     The  FHLBSF  has  stated  in its  Information  Bulletin  that  the Eleventh
District Cost of Funds Index for a month 'will be announced on or near the  last
working  day'  of  the following  month  and  also has  stated  that  it 'cannot
guarantee the announcement'  of such index  on an  exact date. So  long as  such
index  for  a month  is  announced on  or  before the  tenth  day of  the second
following month, the interest rate for each class of Certificates of a Series as
to which the  applicable interest rate  is determined by  reference to an  index
denominated  as COFI  (each, a  class of  'COFI Certificates')  for the Interest
Accrual Period commencing in  such second following month  will be based on  the
Eleventh  District  Cost  of Funds  Index  for  the second  preceding  month. If
publication is delayed beyond such tenth  day, such interest rate will be  based
on the Eleventh District Cost of Funds Index for the third preceding month.
 
     Unless  otherwise specified in the related Prospectus Supplement, if on the
tenth day of  the month in  which any  Interest Accrual Period  commences for  a
class of COFI Certificates the most recently published Eleventh District Cost of
Funds Index relates to a month prior to the third preceding month, the index for
such  current Interest Accrual  Period and for  each succeeding Interest Accrual
Period will, except as described in the next to last sentence of this paragraph,
be based on  the National  Monthly Median Cost  of Funds  Ratio to  SAIF-Insured
Institutions  (the 'National  Cost of Funds  Index') published by  the Office of
Thrift Supervision (the  'OTS') for  the third  preceding month  (or the  fourth
preceding  month if  the National  Cost of Funds  Index for  the third preceding
month has not been published on such  tenth day of an Interest Accrual  Period).
Information  on the National Cost of Funds  Index may be obtained by writing the
OTS at 1700 G  Street, N.W., Washington, D.C.  20552 or calling (202)  906-6677,
and  the current National Cost  of Funds Index may  be obtained by calling (202)
906-6988. If on any  such tenth day  of the month in  which an Interest  Accrual
Period  commences  the  most recently  published  National Cost  of  Funds Index
relates to a month prior to the fourth preceding month, the applicable index for
such Interest Accrual Period and each succeeding Interest Accrual Period will be
based on LIBOR, as  determined by the Calculation  Agent in accordance with  the
Agreement  relating to such Series  of Certificates. A change  of index from the
Eleventh District Cost of Funds Index to  an alternative index will result in  a
change  in the index level, and, particularly if LIBOR is the alternative index,
could increase its volatility.
 
     The establishment of COFI by the  Calculation Agent and its calculation  of
the  rates  of interest  for  the applicable  classes  for the  related Interest
Accrual Period shall (in the absence of manifest error) be final and binding.
 
                                       29
 
<PAGE>

<PAGE>
Treasury Index
 
     Unless otherwise specified  in the  related Prospectus  Supplement, on  the
Treasury  Index Determination Date for each class of Certificates of a Series as
to which the  applicable interest rate  is determined by  reference to an  index
denominated  as  a  Treasury Index,  the  Calculation Agent  will  ascertain the
Treasury Index for Treasury securities of  the maturity and for the period  (or,
if  applicable,  date) specified  in the  related Prospectus  Supplement. Unless
otherwise specified in the related Prospectus Supplement, the Treasury Index for
any period means  the average  of the  yield for  each business  day during  the
period  specified therein  (and for  any date  means the  yield for  such date),
expressed as  a per  annum  percentage rate,  on  (i) U.S.  Treasury  securities
adjusted  to the 'constant  maturity' (as further  described below) specified in
such Prospectus Supplement or  (ii) if no 'constant  maturity' is so  specified,
U.S.  Treasury securities  trading on the  secondary market  having the maturity
specified in  such Prospectus  Supplement,  in each  case  as published  by  the
Federal  Reserve Board  in its Statistical  Release No.  H.15 (519). Statistical
Release No. H.15 (519) is published on Monday or Tuesday of each week and may be
obtained by  writing or  calling the  Publications Department  at the  Board  of
Governors  of the Federal  Reserve System, 21st and  C Streets, Washington, D.C.
20551 (202) 452-3244. If the Calculation Agent has not yet received  Statistical
Release  No. H.15 (519) for such week, then it will use such Statistical Release
from the immediately preceding week.
 
     Yields on U.S. Treasury securities at 'constant maturity' are derived  from
the  U.S. Treasury's daily yield curve. This curve, which relates the yield on a
security to its time to maturity, is  based on the closing market bid yields  on
actively traded Treasury securities in the over-the-counter market. These market
yields  are calculated  from composites of  quotations reported  by five leading
U.S. Government securities dealers to the Federal Reserve Bank of New York. This
method provides a yield for a given maturity even if no security with that exact
maturity is  outstanding. In  the event  that the  Treasury Index  is no  longer
published,  a  new index  based  upon comparable  data  and methodology  will be
designated in accordance with the Agreement relating to the particular Series of
Certificates. The Calculation Agent's determination  of the Treasury Index,  and
its  calculation of  the rates  of interest for  the applicable  classes for the
related Interest Accrual  Period shall  (in the  absence of  manifest error)  be
final and binding.
 
Prime Rate
 
     Unless  otherwise specified  in the  related Prospectus  Supplement, on the
Prime Rate Determination Date for each class  of Certificates of a Series as  to
which  the  applicable interest  rate  is determined  by  reference to  an index
denominated as the Prime  Rate, the Calculation Agent  will ascertain the  Prime
Rate  for the related Interest Accrual Period. Unless otherwise specified in the
related Prospectus Supplement,  the Prime  Rate for an  Interest Accrual  Period
will  be the 'Prime Rate' as published in  the 'Money Rates' section of The Wall
Street Journal (or  if not  so published,  the 'Prime  Rate' as  published in  a
newspaper  of general circulation selected by  the Calculation Agent in its sole
discretion) on the related Prime Rate Determination Date. If a prime rate  range
is  given, then the  average of such range  will be used. In  the event that the
Prime Rate is no longer  published, a new index  based upon comparable data  and
methodology  will be designated in accordance with the Agreement relating to the
particular Series of Certificates. The Calculation Agent's determination of  the
Prime Rate and its calculation of the rates of interest for the related Interest
Accrual Period shall (in the absence of manifest error) be final and binding.
 
BOOK-ENTRY CERTIFICATES
 
     If  so specified in the related  Prospectus Supplement, one or more classes
of the Certificates of any Series  (each, a class of 'Book-Entry  Certificates')
may  be initially  issued through  the book-entry  facilities of  The Depository
Trust Company (together with any successor depository selected by the Depositor,
the 'Depository'). Each  class of Book-Entry  Certificates of a  Series will  be
issued  in  one or  more certificates  which equal  the aggregate  initial Class
Certificate Balance (as  defined herein) of  each such class  and which will  be
held  by a nominee of  the Depository. Unless otherwise  provided in the related
Prospectus Supplement,  the following  generally describes  the procedures  that
will be applicable to any class of Book-Entry Certificates.
 
     Beneficial  interests in  the Book-Entry Certificates  of a  Series will be
held  indirectly  by  investors  through   the  book-entry  facilities  of   the
Depository, as described herein. Investors may hold such beneficial interests in
the  Book-Entry Certificates  in minimum denominations  representing an original
principal  amount  of   $1,000  and  integral   multiples  in  excess   thereof.
Accordingly,  the Depository  or its  nominee is  expected to  be the  holder of
record of  the Book-Entry  Certificates. Except  as described  below, no  person
acquiring a Book-Entry Certificate
 
                                       30
 
<PAGE>

<PAGE>
(each,  a 'beneficial owner') will be entitled to receive a physical certificate
representing such Certificate (a 'Definitive Certificate').
 
     The beneficial  owner's  ownership  of a  Book-Entry  Certificate  will  be
recorded on the records of the brokerage firm, bank, thrift institution or other
financial  intermediary (each,  a 'Financial  Intermediary') that  maintains the
beneficial  owner's  account   for  such   purpose.  In   turn,  the   Financial
Intermediary's  ownership of such Book-Entry Certificate will be recorded on the
records of the Depository (or of a participating firm that acts as agent for the
Financial Intermediary, whose interest will in  true be recorded on the  records
of  the Depository,  if the beneficial  owner's Financial Intermediary  is not a
Depository participant).  Therefore,  the  beneficial owner  must  rely  on  the
foregoing  procedures  to  evidence  its beneficial  ownership  of  a Book-Entry
Certificate. Beneficial  ownership  of  a Book-Entry  Certificate  may  only  be
transferred  by compliance with the  procedures of such Financial Intermediaries
and Depository participants.
 
     In accordance with  its normal  procedures, the Depository  is expected  to
record  the  positions held  by each  Depository  participant in  the Book-Entry
Certificates, whether  held for  its own  account or  as a  nominee for  another
person.  In  general, beneficial  ownership of  Book-Entry Certificates  will be
subject to the rules,  regulations and procedures  governing the Depository  and
Depository participants as in effect from time to time.
 
     Distributions   on  the  Book-Entry  Certificates  will  be  made  on  each
Distribution Date  by the  Trustee to  the Depository.  The Depository  will  be
responsible  for crediting the  amount of such  payments to the  accounts of the
applicable Depository participants  in accordance with  the Depository's  normal
procedures.  Each Depository participant will be responsible for disbursing such
payments to  the  beneficial  owners  of the  Book-Entry  Certificates  that  it
represents  and to each Financial Intermediary for  which it acts as agent. Each
such Financial  Intermediary will  be responsible  for disbursing  funds to  the
beneficial owners of the Book-Entry Certificates that it represents.
 
     Under a book-entry format, beneficial owners of the Book-Entry Certificates
may  experience some delay in their receipt  of payments, since payments will be
forwarded by the Trustee to the Depository  or its nominee, as the case may  be,
as  holder of record of the  Book-Entry Certificates. Because the Depository can
act only on  behalf of  Financial Intermediaries,  the ability  of a  beneficial
owner  to  pledge Book-Entry  Certificates to  persons or  entities that  do not
participate in the Depository  system, or otherwise take  actions in respect  of
such  Book-Entry  Certificates,  may be  limited  due  to the  lack  of physical
certificates for  such Book-Entry  Certificates. In  addition, issuance  of  the
Book-Entry  Certificates in  book-entry form  may reduce  the liquidity  of such
Certificates in the secondary  market since certain  potential investors may  be
unwilling  to  purchase  Certificates  for  which  they  cannot  obtain physical
certificates.
 
     Unless and until Definitive Certificates are issued, it is anticipated that
the  only  'Certificateholder'  of  the  Book-Entry  Certificates  will  be  the
Depository or its nominee. Beneficial owners of the Book-Entry Certificates will
not  be Certificateholders, as that term will  be used in the Agreement relating
to such series of Certificates. Beneficial owners are only permitted to exercise
the rights of Certificateholders indirectly through Financial Intermediaries and
the Depository. Monthly and annual reports on the related Trust Fund provided to
the Depository or its nominee,  as the case may be,  as holder of record of  the
Book-Entry  Certificates,  may  be  made  available  to  beneficial  owners upon
request, in accordance with the  rules, regulations and procedures creating  and
affecting   the  Depository,  and  to  the  Financial  Intermediaries  to  whose
Depository accounts the  Book-Entry Certificates of  such beneficial owners  are
credited.
 
     Unless otherwise specified in the related Prospectus Supplement, unless and
until  Definitive Certificates are  issued, the Depository  will take any action
permitted to  be  taken by  the  holders of  the  Book-Entry Certificates  of  a
particular  Series under the related  Agreement only at the  direction of one or
more Financial  Intermediaries  to  whose Depository  accounts  such  Book-Entry
Certificates  are credit to the extent that  such actions are taken on behalf of
Financial Intermediaries whose holdings include such Book-Entry Certificates.
 
     Unless otherwise specified in the related Prospectus Supplement, Definitive
Certificates will be issued to beneficial owners of Book-Entry Certificates,  or
their nominees, rather than to the Depository, only if (a) the Depository or the
Depositor  advises  the Trustee  in  writing that  the  Depository is  no longer
willing, qualified or able to discharge properly its responsibilities as nominee
and depository with respect to the Book-Entry Certificates and the Depositor  or
the Trustee is unable to locate a qualified successor; (b) the Depositor, at its
sole  option, elects to terminate the  book-entry system through the Depository;
or (c)  after  the occurrence  of  an Event  of  Default, beneficial  owners  of
Certificates  representing  not  less  than  51%  of  the  aggregate  Percentage
Interests evidenced by each class of  Certificates of the related Series  issued
as  Book-Entry Certificates  advise the Trustee  and the  Depository through the
Financial  Intermediaries  in   writing  that  the   continuation  of  a   book-
 
                                       31
 
<PAGE>

<PAGE>
entry system through the Depository (or a successor thereto) is no longer in the
best interests of the beneficial owners.
 
     Upon  the  occurrence of  any of  the events  described in  the immediately
preceding paragraph,  the Trustee  will  be required  to notify  all  beneficial
owners  of  the occurrence  of  such event  and  the availability  of Definitive
Certificates. Upon  surrender by  the Depository  of the  global certificate  or
certificates  representing  the  Book-Entry  Certificates  and  instructions for
re-registration,  the  Trustee  will  issue  the  Definitive  Certificates,  and
thereafter   the  Trustee  will   recognize  the  holders   of  such  Definitive
Certificates as Certificateholders under the  Agreement relating to such  Series
of Certificates.
 
                               CREDIT ENHANCEMENT
 
GENERAL
 
     Credit enhancement may be provided with respect to one or more classes of a
Series  of Certificates or  with respect to  the Mortgage Assets  in the related
Trust Fund.  Credit  enhancement may  be  in the  form  of a  limited  financial
guaranty  policy issued by an entity named in the related Prospectus Supplement,
the subordination of one or more classes of the Certificates of such Series, the
establishment of one or more reserve funds, the use of a cross-support  feature,
use  of  a  mortgage  pool insurance  policy,  bankruptcy  bond,  special hazard
insurance policy, surety bond, letter of credit, guaranteed investment  contract
or  other  method  of credit  enhancement  described in  the  related Prospectus
Supplement, or any combination of  the foregoing. Unless otherwise specified  in
the related Prospectus Supplement, no credit enhancement will provide protection
against all risks of loss or guarantee repayment of the entire principal balance
of  the  Certificates and  interest thereon.  If losses  occur which  exceed the
amount covered by  credit enhancement  or which are  not covered  by the  credit
enhancement,   Certificateholders  will  bear  their   allocable  share  of  any
deficiencies.
 
SUBORDINATION
 
     If so specified in the related Prospectus Supplement, the rights of holders
of  one  or  more  classes  of  Subordinated  Certificates  (the   'Subordinated
Certificateholders') will be subordinate to the rights of holders of one or more
other  classes of Senior Certificates  (the 'Senior Certificateholders') of such
Series  to   distributions  in   respect  of   scheduled  principal,   Principal
Prepayments,  interest or any combination thereof that otherwise would have been
payable to holders of Subordinated  Certificates under the circumstances and  to
the  extent specified in the related  Prospectus Supplement. If specified in the
related Prospectus Supplement, delays  in receipt of  scheduled payments on  the
Mortgage  Assets and losses  with respect to  the Mortgage Assets  will be borne
first by the various classes of Subordinated Certificates and thereafter by  the
various classes of Senior Certificates, in each case under the circumstances and
subject  to the limitations specified in such related Prospectus Supplement. The
aggregate distributions in respect of delinquent payments on the Mortgage Assets
over the lives  of the  Certificates or  at any  time, the  aggregate losses  in
respect  of Mortgage Assets which must be borne by the Subordinated Certificates
by virtue  of  subordination  and  the amount  of  the  distributions  otherwise
distributable  to the Subordinated Certificateholders that will be distributable
to Senior  Certificateholders  on  any  Distribution  Date  may  be  limited  as
specified  in the related  Prospectus Supplement. If  aggregate distributions in
respect of delinquent  payments on the  Mortgage Assets or  aggregate losses  in
respect  of such  Mortgage Assets  were to  exceed the  amount specified  in the
related Prospectus Supplement, Senior Certificateholders would experience losses
on the Certificates.
 
     If specified  in  the related  Prospectus  Supplement, various  classes  of
Senior  Certificates and Subordinated Certificates may themselves be subordinate
in their right to receive certain  distributions to other classes of Senior  and
Subordinated  Certificates, respectively,  through a cross  support mechanism or
otherwise.
 
     As between  classes  of  Senior  Certificates and  as  between  classes  of
Subordinated Certificates, distributions may be allocated among such classes (i)
in  the order  of their scheduled  final distribution dates,  (ii) in accordance
with a schedule or  formula, (iii) in  relation to the  occurrence of events  or
(iv)  otherwise, in each case as specified in the related Prospectus Supplement.
As  between   classes  of   Subordinated   Certificates,  payments   to   Senior
Certificateholders  on account  of delinquencies or  losses and  payments to the
Reserve  Fund  will  be  allocated  as  specified  in  the  related   Prospectus
Supplement.
 
                                       32
 
<PAGE>

<PAGE>
MORTGAGE POOL INSURANCE POLICIES
 
     If  specified in the  related Prospectus Supplement  relating to a Mortgage
Pool, a  separate  mortgage  pool insurance  policy  ('Mortgage  Pool  Insurance
Policy')  will be obtained for the Mortgage  Pool and issued by the insurer (the
'Pool  Insurer')  named  in  such  Prospectus  Supplement.  Each  Mortgage  Pool
Insurance Policy will, subject to the limitations described below, cover loss by
reason of default in payment on Mortgage Loans in the Mortgage Pool in an amount
equal  to a percentage specified in  such Prospectus Supplement of the aggregate
principal balance  of such  Mortgage Loans  on the  Cut-off Date  which are  not
covered  as to their  entire outstanding principal  balances by Primary Mortgage
Insurance Policies.  As more  fully described  below, the  Master Servicer  will
present  claims thereunder to the Pool Insurer  on behalf of itself, the Trustee
and the Certificateholders. The Mortgage  Pool Insurance Policies, however,  are
not  blanket policies  against loss,  since claims  thereunder may  be made only
respecting particular defaulted  Mortgage Loans  and only  upon satisfaction  of
certain  conditions precedent described below. Unless otherwise specified in the
related Prospectus Supplement,  the Mortgage  Pool Insurance  Policies will  not
cover  losses due  to a  failure to  pay or  denial of  a claim  under a Primary
Mortgage Insurance Policy.
 
     Unless otherwise  specified  in  the related  Prospectus  Supplement,  each
Mortgage  Pool  Insurance Policy  will  provide that  no  claims may  be validly
presented unless (i) any required Primary Mortgage Insurance Policy is in effect
for the defaulted Mortgage  Loan and a claim  thereunder has been submitted  and
settled;  (ii) hazard insurance on the  related Mortgaged Property has been kept
in force and real  estate taxes and other  protection and preservation  expenses
have been paid; (iii) if there has been physical loss or damage to the Mortgaged
Property,  it has been  restored to its physical  condition (reasonable wear and
tear excepted) at the time of issuance  of the policy; and (iv) the insured  has
acquired good and merchantable title to the Mortgaged Property free and clear of
liens   except  certain  permitted  encumbrances.  Upon  satisfaction  of  these
conditions, the Pool  Insurer will have  the option either  (a) to purchase  the
Mortgaged  Property at  a price  equal to the  principal balance  of the related
Mortgage Loan plus accrued and unpaid interest at the Mortgage Rate to the  date
of  such purchase and certain expenses incurred by the Master Servicer on behalf
of the Trustee and Certificateholders or (b) to pay the amount by which the  sum
of  the principal balance of the defaulted Mortgage Loan plus accrued and unpaid
interest at  the Mortgage  Rate to  the date  of payment  of the  claim and  the
aforementioned  expenses exceeds the proceeds received  from an approved sale of
the Mortgaged Property, in either case net of certain amounts paid or assumed to
have been  paid under  the related  Primary Mortgage  Insurance Policy.  If  any
Mortgaged  Property is  damaged, and proceeds,  if any, from  the related hazard
insurance  policy  or  the  applicable  Special  Hazard  Insurance  Policy   are
insufficient to restore the damaged property to a condition sufficient to permit
recovery  under the Mortgage Pool Insurance Policy, the Master Servicer will not
be required to expend its  own funds to restore  the damaged property unless  it
determines   that   (i)  such   restoration  will   increase  the   proceeds  to
Certificateholders on liquidation  of the Mortgage  Loan after reimbursement  of
the  Master Servicer for its expenses and (ii) such expenses will be recoverable
by it through proceeds of the sale of the Mortgaged Property or proceeds of  the
related Mortgage Pool Insurance Policy or any related Primary Mortgage Insurance
Policy.
 
     Unless  otherwise  specified  in  the  related  Prospectus  Supplement,  no
Mortgage Pool Insurance Policy will insure (and many Primary Mortgage  Insurance
Policies  do not insure) against  loss sustained by reason  of a default arising
from, among  other  things,  (i)  fraud or  negligence  in  the  origination  or
servicing  of a Mortgage Loan, including misrepresentation by the Mortgagor, the
originator or persons involved  in the origination thereof,  or (ii) failure  to
construct  a Mortgaged Property  in accordance with  plans and specifications. A
failure of coverage attributable to one of the foregoing events might result  in
a  breach of the  related Seller's representations described  above and, in such
event, might give rise to an obligation on the part of such Seller to repurchase
the defaulted Mortgage Loan  if the breach  cannot be cured  by such Seller.  No
Mortgage  Pool Insurance Policy will cover  (and many Primary Mortgage Insurance
Policies do not cover) a claim in respect of a defaulted Mortgage Loan occurring
when the servicer of such Mortgage Loan,  at the time of default or  thereafter,
was not approved by the applicable insurer.
 
     Unless  otherwise  specified  in  the  related  Prospectus  Supplement, the
original amount of coverage  under each Mortgage Pool  Insurance Policy will  be
reduced over the life of the related Certificates by the aggregate dollar amount
of  claims  paid less  the aggregate  of the  net amounts  realized by  the Pool
Insurer upon disposition of all foreclosed properties. The amount of claims paid
will include certain expenses incurred by the Master Servicer as well as accrued
interest on  delinquent Mortgage  Loans to  the date  of payment  of the  claim,
unless otherwise specified in the related Prospectus Supplement. Accordingly, if
aggregate net claims paid under any
 
                                       33
 
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<PAGE>
Mortgage  Pool Insurance Policy reach the  original policy limit, coverage under
that Mortgage Pool  Insurance Policy will  be exhausted and  any further  losses
will be borne by the Certificateholders.
 
SPECIAL HAZARD INSURANCE POLICIES
 
     If  specified  in the  related  Prospectus Supplement,  a  separate Special
Hazard Insurance  Policy will  be obtained  for the  Mortgage Pool  and will  be
issued  by the insurer  (the 'Special Hazard Insurer')  named in such Prospectus
Supplement. Each Special  Hazard Insurance Policy  will, subject to  limitations
described  below, protect holders  of the related Certificates  from (i) loss by
reason of damage to  Mortgaged Properties caused  by certain hazards  (including
earthquakes and, to a limited extent, tidal waves and related water damage or as
otherwise  specified in the  related Prospectus Supplement)  not insured against
under the standard form of hazard insurance policy for the respective states  in
which  the Mortgaged Properties are located or under a flood insurance policy if
the Mortgaged Property is located in a federally designated flood area and  (ii)
loss  caused by reason of the application of the coinsurance clause contained in
hazard insurance policies. See  'The Pooling and  Servicing Agreement --  Hazard
Insurance'.  No Special Hazard Insurance Policy  will cover losses occasioned by
fraud or conversion by the Trustee or Master Servicer, war, insurrection,  civil
war,  certain  governmental  action,  errors in  design,  faulty  workmanship or
materials (except under  certain circumstances), nuclear  or chemical  reaction,
flood  (if the  Mortgaged Property  is located  in a  federally designated flood
area), nuclear or chemical contamination and certain other risks. The amount  of
coverage  under any  Special Hazard  Insurance Policy  will be  specified in the
related Prospectus Supplement. Each Special Hazard Insurance Policy will provide
that no claim may be paid unless  hazard and, if applicable, flood insurance  on
the  property  securing the  Mortgage Loan  have  been kept  in force  and other
protection and preservation expenses have been paid.
 
     Subject to the foregoing limitations, and unless otherwise specified in the
related Prospectus Supplement, each Special Hazard Insurance Policy will provide
that where there has been damage to property securing a foreclosed Mortgage Loan
(title to which has been acquired by the insured) and to the extent such  damage
is not covered by the hazard insurance policy or flood insurance policy, if any,
maintained  by the Mortgagor or the  Master Servicer, the Special Hazard Insurer
will pay the lesser of (i) the cost of repair or replacement of such property or
(ii) upon transfer  of the property  to the Special  Hazard Insurer, the  unpaid
principal  balance of  such Mortgage  Loan at  the time  of acquisition  of such
property by foreclosure or deed in lieu of foreclosure, plus accrued interest to
the date  of  claim settlement  and  certain  expenses incurred  by  the  Master
Servicer  with respect to  such property. If  the unpaid principal  balance of a
Mortgage Loan plus accrued interest and certain expenses is paid by the  Special
Hazard  Insurer, the amount of further coverage under the related Special Hazard
Insurance Policy will be reduced by such  amount less any net proceeds from  the
sale  of the property.  Any amount paid as  the cost of  repair of such property
will further  reduce  coverage  by such  amount.  So  long as  a  Mortgage  Pool
Insurance Policy remains in effect, the payment by the Special Hazard Insurer of
the  cost of repair or  of the unpaid principal  balance of the related Mortgage
Loan plus  accrued interest  and  certain expenses  will  not affect  the  total
insurance  proceeds  paid to  Certificateholders, but  will affect  the relative
amounts of coverage remaining under the related Special Hazard Insurance  Policy
and Mortgage Pool Insurance Policy.
 
     To  the extent specified in the  Prospectus Supplement, the Master Servicer
may deposit  cash, an  irrevocable  letter of  credit  or any  other  instrument
acceptable  to each nationally recognized  rating agency rating the Certificates
of the related Series in a special  trust account to provide protection in  lieu
of  or in addition  to that provided  by a Special  Hazard Insurance Policy. The
amount of any Special Hazard Insurance Policy  or of the deposit to the  special
trust  account in lieu thereof  relating to such Certificates  may be reduced so
long as any such  reduction will not  result in a downgrading  of the rating  of
such Certificates by any such rating agency.
 
BANKRUPTCY BONDS
 
     If  specified in the related Prospectus  Supplement, a bankruptcy bond (the
'Bankruptcy Bond') to cover losses resulting from proceedings under the  federal
Bankruptcy  Code with respect  to a Mortgage  Loan will be  issued by an insurer
named in such  Prospectus Supplement. Each  Bankruptcy Bond will  cover, to  the
extent  specified in the related Prospectus Supplement, certain losses resulting
from a reduction by  a bankruptcy court of  scheduled payments of principal  and
interest on a Mortgage Loan or a reduction by such court of the principal amount
of  a Mortgage Loan and will cover certain unpaid interest on the amount of such
a principal reduction from the date of the filing of a bankruptcy petition.  The
required  amount of coverage under each Bankruptcy Bond will be set forth in the
related Prospectus Supplement. Coverage under a Bankruptcy Bond may be cancelled
or reduced by the  Master Servicer if such  cancellation or reduction would  not
adversely affect
 
                                       34
 
<PAGE>

<PAGE>
the  then current  rating or ratings  of the related  Certificates. See 'Certain
Legal Aspects of  the Mortgage  Loans -- Anti-Deficiency  Legislation and  Other
Limitations on Lenders' herein.
 
     To  the extent specified in the  Prospectus Supplement, the Master Servicer
may deposit  cash, an  irrevocable  letter of  credit  or any  other  instrument
acceptable  to each nationally recognized  rating agency rating the Certificates
of the related Series in a special  trust account to provide protection in  lieu
of  or in  addition to  that provided by  a Bankruptcy  Bond. The  amount of any
Bankruptcy Bond or of the deposit to  the special trust account in lieu  thereof
relating  to such Certificates may be reduced so long as any such reduction will
not result in  a downgrading  of the  rating of  such Certificates  by any  such
rating agency.
 
RESERVE FUND
 
     If  so specified in the related  Prospectus Supplement, credit support with
respect to a  Series of Certificates  may be provided  by the establishment  and
maintenance  with the Trustee for such Series  of Certificates, in trust, of one
or more  reserve  funds  (the  'Reserve Fund')  for  such  Series.  The  related
Prospectus  Supplement  will  specify whether  or  not  a Reserve  Fund  will be
included in the Trust Fund for such Series.
 
     The Reserve Fund for a Series will be funded (i) by the deposit therein  of
cash,  U.S. Treasury securities or instruments evidencing ownership of principal
or interest payments thereon, letters  of credit, demand notes, certificates  of
deposit  or  a combination  thereof  in the  aggregate  amount specified  in the
related Prospectus Supplement, (ii) by the deposit therein from time to time  of
certain amounts, as specified in the related Prospectus Supplement, to which the
Subordinated Certificateholders, if any, would otherwise be entitled or (iii) in
such other manner as may be specified in the related Prospectus Supplement.
 
     Any  amounts on deposit in  the Reserve Fund and  the proceeds of any other
instrument deposited  therein upon  maturity will  be held  in cash  or will  be
invested  in 'Permitted  Investments' which,  unless otherwise  specified in the
related Prospectus Supplement, will include obligations of the United States and
certain agencies  thereof, certificates  of deposit,  certain commercial  paper,
time  deposits and  bankers acceptances  sold by  eligible commercial  banks and
certain repurchase  agreements  of  United  States  government  securities  with
eligible  commercial banks. If a letter of credit is deposited with the Trustee,
such letter of  credit will be  irrevocable. Unless otherwise  specified in  the
related  Prospectus Supplement, any  instrument deposited therein  will name the
Trustee, in its capacity as  trustee for the Certificateholders, as  beneficiary
and  will be issued by an entity acceptable to each rating agency that rates the
Certificates. Additional information with respect to such instruments  deposited
in the Reserve Funds will be set forth in the related Prospectus Supplement.
 
     Any  amounts so deposited and payments  on instruments so deposited will be
available  for  withdrawal  from  the  Reserve  Fund  for  distribution  to  the
Certificateholders for the purposes, in the manner and at the times specified in
the related Prospectus Supplement.
 
CROSS SUPPORT
 
     If specified in the related Prospectus Supplement, the beneficial ownership
of  separate  groups of  assets included  in a  Trust Fund  may be  evidenced by
separate classes of  the related Series  of Certificates. In  such case,  credit
support  may  be  provided  by  a  cross  support  feature  which  requires that
distributions be  made  with respect  to  Certificates evidencing  a  beneficial
ownership interest in other asset groups within the same Trust Fund. The related
Prospectus  Supplement for a  Series that includes a  cross support feature will
describe the manner and conditions for applying such cross support feature.
 
     If specified in the related Prospectus Supplement, the coverage provided by
one or  more forms  of credit  support may  apply concurrently  to two  or  more
related  Trust  Funds. If  applicable,  the related  Prospectus  Supplement will
identify the Trust Funds to which such credit support relates and the manner  of
determining  the amount of the coverage  provided thereby and of the application
of such coverage to the identified Trust Funds.
 
OTHER INSURANCE, SURETY BONDS, GUARANTIES, LETTERS OF CREDIT AND SIMILAR
INSTRUMENTS OR AGREEMENTS
 
     If specified in the  related Prospectus Supplement, a  Trust Fund may  also
include  insurance,  guaranties,  surety  bonds, letters  of  credit  or similar
arrangements for the  purpose of  (i) maintaining timely  payments or  providing
additional  protection against losses on the assets included in such Trust Fund,
(ii) paying administrative expenses or (iii) establishing a minimum reinvestment
rate on the payments made in respect of
 
                                       35
 
<PAGE>

<PAGE>
such assets or  principal payment  rate on  such assets.  Such arrangements  may
include  agreements  under  which  Certificateholders  are  entitled  to receive
amounts deposited  in  various accounts  held  by  the Trustee  upon  the  terms
specified in such Prospectus Supplement.
 
                      YIELD AND PREPAYMENT CONSIDERATIONS
 
     The  yields to maturity and weighted average lives of the Certificates will
be affected primarily by the amount and timing of principal payments received on
or in respect of  the Mortgage Assets  included in the  related Trust Fund.  The
original  terms to maturity of the underlying mortgage loans with respect to the
Mortgage Assets in a given  Mortgage Pool will vary  depending upon the type  of
mortgage  loans included  therein, and  each Prospectus  Supplement will contain
information with respect  to the  type and  maturities of  such mortgage  loans.
Unless  otherwise specified in  the related Prospectus  Supplement, the mortgage
loans may  be prepaid  without penalty  in  full or  in part  at any  time.  The
prepayment  experience  on the  underlying mortgage  loans  with respect  to the
Mortgage Assets will affect the life of the related Series of Certificates.
 
     A number of factors, including homeowner mobility, economic conditions, the
presence and  enforceability of  due-on-sale clauses,  mortgage market  interest
rates  and  the  availability  of  mortgage  funds,  may  affect  the prepayment
experience of mortgage loans.
 
     Unless  otherwise  provided  in  the  related  Prospectus  Supplement,  all
conventional  Mortgage Loans will contain  due-on-sale provisions permitting the
mortgagee to accelerate the maturity of the loan upon sale or certain  transfers
by the Mortgagor of the underlying Mortgaged Property. Mortgage Loans insured by
the FHA and Mortgage Loans partially guaranteed by the VA are assumable with the
consent  of the FHA and  the VA, respectively. Thus,  the rate of prepayments on
such Mortgage  Loans may  be  lower than  that  on conventional  Mortgage  Loans
bearing  comparable  interest rates.  Unless otherwise  provided in  the related
Prospectus  Supplement,  the   Master  Servicer  generally   will  enforce   any
due-on-sale  or due-on-encumbrance clause, to the extent it has knowledge of the
conveyance or further encumbrance or the proposed conveyance or proposed further
encumbrance of  the  Mortgaged  Property  and reasonably  believes  that  it  is
entitled  to  do so  under applicable  law; provided,  however, that  the Master
Servicer will not take any enforcement  action that would impair or threaten  to
impair  any recovery  under any related  insurance policy. See  'The Pooling and
Servicing Agreement  -- Collection Procedures' and 'Certain Legal Aspects of the
Mortgage Loans' herein for a description of certain provisions of each Agreement
and certain legal developments that may affect the prepayment experience on  the
Mortgage Loans.
 
     The  rate of  prepayments with respect  to conventional  mortgage loans has
fluctuated significantly in recent years.  In general, if prevailing rates  fall
significantly below the Mortgage Rates borne by the Mortgage Loans, the Mortgage
Loans  are likely to  be subject to  higher prepayment rates  than if prevailing
interest rates remain at or above such Mortgage Rates. Conversely, if prevailing
interest rates rise appreciably above the  Mortgage Rates borne by the  Mortgage
Loans,  the Mortgage Loans are likely to experience a lower prepayment rate than
if prevailing rates remain at or  below such Mortgage Rates. However, there  can
be no assurance that such will be the case.
 
     When a full prepayment is made on a Mortgage Loan, the Mortgagor is charged
interest  on the principal amount  of the Mortgage Loan  so prepaid only for the
number of days in the  month actually elapsed up to  the date of the  prepayment
rather  than  for  a  full  month. Unless  otherwise  specified  in  the related
Prospectus Supplement, the effect of prepayments  in full will be to reduce  the
amount  of interest passed through in  the following month to Certificateholders
because interest on the principal amount of any Mortgage Loan so prepaid will be
paid only to the date of prepayment. Partial prepayments in a given month may be
applied to the outstanding principal balances  of the Mortgage Loans so  prepaid
on  the first day of the month of receipt or the month following receipt. In the
latter case, partial prepayments will not  reduce the amount of interest  passed
through  in such  month. Unless  otherwise specified  in the  related Prospectus
Supplement, both full and partial prepayments  will not be passed through  until
the month following receipt.
 
     The  effective yield to Certificateholders will  be slightly lower than the
yield otherwise produced by the applicable Pass-Through Rate and purchase  price
because  while interest will accrue on each  Mortgage Loan from the first day of
the month (unless otherwise provided in the related Prospectus Supplement),  the
distribution  of such interest will not be made earlier than the month following
the month of accrual.
 
                                       36
 
<PAGE>

<PAGE>
     Under certain  circumstances, the  Master Servicer  or the  holders of  the
residual  interests in a REMIC  may have the option to  purchase the assets of a
Trust Fund  thereby  effecting  earlier  retirement of  the  related  Series  of
Certificates.  See 'The Pooling and Servicing Agreement -- Termination; Optional
Termination' herein.
 
     Factors other than those  identified herein and  in the related  Prospectus
Supplement could significantly affect principal prepayments at any time and over
the  lives of the Certificates. The relative contribution of the various factors
affecting prepayment may also vary from time to time. There can be no  assurance
as  to the rate  of payment of principal  of the Mortgage Assets  at any time or
over the lives of the Certificates.
 
     The Prospectus Supplement relating to a Series of Certificates will discuss
in greater  detail the  effect of  the  rate and  timing of  principal  payments
(including  Principal  Prepayments),  delinquencies  and  losses  on  the yield,
weighted average lives and maturities of such Certificates.
 
                                       37


<PAGE>

<PAGE>
                      THE POOLING AND SERVICING AGREEMENT
 
     Set  forth below is a summary of  certain provisions of the Agreement which
are not described elsewhere in  this Prospectus. Where particular provisions  or
terms  used in the  Agreement are referred  to, such provisions  or terms are as
specified in the related Agreement.
 
ASSIGNMENT OF MORTGAGE ASSETS
 
     Assignment of  the  Mortgage  Loans.    At the  time  of  issuance  of  the
Certificates of a Series, the Depositor will cause the Mortgage Loans comprising
the  related  Trust  Fund to  be  assigned  to the  Trustee,  together  with all
principal and interest  received by or  on behalf  of the Depositor  on or  with
respect  to such Mortgage Loans after the Cut-off Date, other than principal and
interest due on or before the Cut-off Date and other than any Retained  Interest
specified  in the related Prospectus  Supplement. The Trustee will, concurrently
with such assignment, deliver the Certificates to the Depositor in exchange  for
the  Mortgage  Loans.  Each  Mortgage  Loan will  be  identified  in  a schedule
appearing as an  exhibit to the  related Agreement. Such  schedule will  include
information  as to the outstanding principal balance of each Mortgage Loan after
application of  payments  due  on  the Cut-off  Date,  as  well  as  information
regarding  the Mortgage Rate, the current scheduled monthly payment of principal
and interest, the maturity of the  loan, the Loan-to-Value Ratio at  origination
and certain other information.
 
     In  addition, the Depositor  will deliver or  cause to be  delivered to the
Trustee (or to the custodian hereinafter referred to) as to each Mortgage  Loan,
among  other things, (i) the Mortgage Note endorsed without recourse in blank or
to the  order of  the  Trustee, (ii)  the mortgage,  deed  of trust  or  similar
instrument (the 'Mortgage') with evidence of recording indicated thereon (except
for  any Mortgage not returned  from the public recording  office, in which case
the Depositor  will,  unless  otherwise  specified  in  the  related  Prospectus
Supplement,  deliver or cause to  be delivered a copy  of such Mortgage together
with a certificate  that the  original of such  Mortgage was  delivered to  such
recording  office), (iii)  an assignment of  the Mortgage to  the Trustee, which
assignment will be in recordable form and (iv) such other security documents  as
may  be specified in the related Prospectus Supplement or the related Agreement.
Unless otherwise specified in the  related Prospectus Supplement, the  Depositor
will  promptly cause the assignments of the  related loans to be recorded in the
appropriate public office for real property records, except in states in  which,
in  the opinion  of counsel  acceptable to  the Trustee,  such recording  is not
required to protect the  Trustee's interest in such  loans against the claim  of
any  subsequent transferee or any  successor to or creditor  of the Depositor or
the originator of such loans.
 
     With respect  to  any  Mortgage  Loans  that  are  Cooperative  Loans,  the
Depositor  will  cause  to be  delivered  to  the Trustee  the  related original
cooperative note  endorsed without  recourse in  blank or  to the  order of  the
Trustee,  the original  security agreement,  the proprietary  lease or occupancy
agreement, the recognition  agreement, an executed  financing agreement and  the
relevant  stock certificate, related  blank stock powers  and any other document
specified in the related Prospectus Supplement.  The Depositor will cause to  be
filed  in  the  appropriate  office  an  assignment  and  a  financing statement
evidencing the Trustee's security interest in each Cooperative Loan.
 
     The Trustee (or  the custodian  hereinafter referred to)  will review  such
Mortgage  Loan  documents  within  the  time  period  specified  in  the related
Prospectus Supplement  after receipt  thereof, and  the Trustee  will hold  such
documents  in trust for the benefit  of the Certificateholders. Unless otherwise
specified in the related Prospectus Supplement, if any such document is found to
be missing or defective in any material respect, the Trustee (or such custodian)
will notify the Master Servicer and the Depositor, and the Master Servicer  will
notify  the related  Seller. If  the Seller cannot  cure the  omission or defect
within the  time period  specified in  the related  Prospectus Supplement  after
receipt  of such notice,  the Seller will  be obligated to  purchase the related
Mortgage Loan from the Trustee at the Purchase Price or, if so specified in  the
related  Prospectus Supplement, replace such Mortgage Loan with another mortgage
loan that  meets  certain  requirements  set forth  therein.  There  can  be  no
assurance  that a  Seller will  fulfill this  purchase obligation.  Although the
Master Servicer  may be  obligated  to enforce  such  obligation to  the  extent
described  above  under 'Mortgage  Loan Program  -- Representations  by Sellers;
Repurchases,' neither the Master Servicer nor the Depositor will be obligated to
purchase such Mortgage Loan if the  Seller defaults on its purchase  obligation,
unless  such  breach  also  constitutes  a  breach  of  the  representations  or
warranties of the Master Servicer or the  Depositor, as the case may be.  Unless
otherwise   specified  in  the  related  Prospectus  Supplement,  this  purchase
obligation constitutes the  sole remedy available  to the Certificateholders  or
the Trustee for omission of, or a material defect in, a constituent document.
 
     The  Trustee  will  be authorized  to  appoint  a custodian  pursuant  to a
custodial agreement to maintain possession of and, if applicable, to review  the
documents relating to the Mortgage Loans as agent of the Trustee.
 
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<PAGE>

<PAGE>
     Notwithstanding  the foregoing provisions, with respect to a Trust Fund for
which a REMIC election is to  be made, unless the related Prospectus  Supplement
otherwise provides, no purchase of a Mortgage Loan will be made if such purchase
would result in a prohibited transaction tax under the Code.
 
     Assignment  of  Agency Securities.   The  Depositor  will cause  the Agency
Securities to be registered in the name  of the Trustee or its nominee, and  the
Trustee  concurrently will  execute, countersign  and deliver  the Certificates.
Each Agency Security will be identified in a schedule appearing as an exhibit to
the Agreement,  which will  specify  as to  each  Agency Security  the  original
principal  amount and outstanding principal balance  as of the Cut-off Date, the
annual pass-through rate (if any) and the maturity date.
 
     Assignment of Private Mortgage-Backed Securities.  The Depositor will cause
the Private  Mortgage-Backed Securities  to be  registered in  the name  of  the
Trustee. The Trustee (or the custodian) will have possession of any certificated
Private  Mortgage-Backed Securities.  Unless otherwise specified  in the related
Prospectus Supplement, the Trustee will not  be in possession of or be  assignee
of  record of any underlying assets  for a Private Mortgage-Backed Security. See
'The Trust  Fund --  Private Mortgage-Backed  Securities' herein.  Each  Private
Mortgage-Backed  Security  will  be identified  in  a schedule  appearing  as an
exhibit to  the related  Agreement  which will  specify the  original  principal
amount,   outstanding  principal  balance   as  of  the   Cut-off  Date,  annual
pass-through rate or interest rate and maturity date and certain other pertinent
information for each Private Mortgage-Backed Security conveyed to the Trustee.
 
PAYMENTS ON MORTGAGE ASSETS; DEPOSITS TO CERTIFICATE ACCOUNT
 
     The Master Servicer will establish and maintain or cause to be  established
and  maintained with  respect to  the related Trust  Fund a  separate account or
accounts for the collection  of payments on the  related Mortgage Assets in  the
Trust  Fund (the 'Certificate Account'), which unless otherwise specified in the
related Prospectus Supplement, must be  either (i) maintained with a  depository
institution  the short-term unsecured debt obligations  of which (or in the case
of a  depository institution  that  is the  principal  subsidiary of  a  holding
company,  the short-term  debt obligations  of which)  are rated  in the highest
short-term rating  category  by  the nationally  recognized  statistical  rating
organization(s)  that  rated  one  or  more classes  of  the  related  Series of
Certificates (each, a 'Rating Agency'), (ii) an account or accounts the deposits
in which are insured by the FDIC or  SAIF to the limits established by the  FDIC
or  the SAIF,  and the  uninsured deposits in  which are  otherwise secured such
that, as evidenced by an opinion of counsel, the Certificateholders have a claim
with respect  to the  funds in  the  Certificate Account  or a  perfected  first
priority  security interest against  any collateral securing  such funds that is
superior to  the claims  of any  other depositors  or general  creditors of  the
depository institution with which the Certificate Account is maintained, (iii) a
trust account or accounts maintained with the trust department of a federal or a
state  chartered depository institution or trust  company, acting in a fiduciary
capacity or (iv)  an account  or accounts  otherwise acceptable  to each  Rating
Agency.  The collateral eligible to secure amounts in the Certificate Account is
limited to Permitted Investments. A Certificate Account may be maintained as  an
interest  bearing account or the funds held therein may be invested pending each
succeeding  Distribution  Date  in   Permitted  Investments.  Unless   otherwise
specified  in  the related  Prospectus Supplement,  the  Master Servicer  or its
designee will be entitled to receive any such interest or other income earned on
funds in  the  Certificate  Account  as  additional  compensation  and  will  be
obligated  to  deposit  in  the  Certificate  Account  the  amount  of  any loss
immediately as  realized. The  Certificate Account  may be  maintained with  the
Master  Servicer or with  a depository institution  that is an  affiliate of the
Master Servicer, provided it meets the standards set forth above.
 
     The  Master  Servicer  will  deposit  or  cause  to  be  deposited  in  the
Certificate  Account  for  each Trust  Fund  on  a daily  basis,  to  the extent
applicable and unless otherwise specified  in the related Prospectus  Supplement
and  provided in the Agreement, the  following payments and collections received
or Advances made by  or on behalf  of it subsequent to  the Cut-off Date  (other
than  payments due on  or before the  Cut-off Date and  exclusive of any amounts
representing Retained Interest):
 
          (i)  all  payments  on  account  of  principal,  including   Principal
     Prepayments  and,  if  specified  in  the  related  Prospectus  Supplement,
     prepayment penalties, on the Mortgage Loans;
 
          (ii) all payments on account of interest on the Mortgage Loans, net of
     applicable servicing compensation;
 
          (iii) all proceeds  (net of unreimbursed  payments of property  taxes,
     insurance  premiums and  similar items  ('Insured Expenses')  incurred, and
     unreimbursed Advances made, by the Master  Servicer, if any) of the  hazard
     insurance  policies  and any  Primary Mortgage  Insurance Policies,  to the
     extent such proceeds are not applied to the restoration of the property  or
     released  to the Mortgagor in accordance  with the Master Servicer's normal
     servicing procedures  (collectively, 'Insurance  Proceeds') and  all  other
     cash amounts (net
 
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<PAGE>
     of  unreimbursed  expenses  incurred  in  connection  with  liquidation  or
     foreclosure ('Liquidation  Expenses') and  unreimbursed Advances,  if  any)
     received  and  retained in  connection  with the  liquidation  of defaulted
     Mortgage Loans,  by  foreclosure  or  otherwise  ('Liquidation  Proceeds'),
     together  with any net proceeds received on a monthly basis with respect to
     any properties acquired on behalf of the Certificateholders by  foreclosure
     or deed in lieu of foreclosure;
 
          (iv)  all proceeds of any Mortgage Loan or property in respect thereof
     purchased by the Master Servicer, the Depositor or any Seller as  described
     under 'Mortgage Loan Program -- Representations by Sellers; Repurchases' or
     'The  Pooling  and Servicing  Agreement --  Assignment of  Mortgage Assets'
     above and all proceeds of any Mortgage Loan repurchased as described  under
     'The  Pooling and Servicing Agreement -- Termination; Optional Termination'
     below;
 
          (v) all payments required to  be deposited in the Certificate  Account
     with  respect  to any  deductible clause  in  any blanket  insurance policy
     described under ' -- Hazard Insurance' below;
 
          (vi) any amount  required to be  deposited by the  Master Servicer  in
     connection  with  losses realized  on investments  for  the benefit  of the
     Master Servicer of funds held in the Certificate Account and, to the extent
     specified in the related Prospectus Supplement, any payments required to be
     made  by  the  Master  Servicer  in  connection  with  prepayment  interest
     shortfalls; and
 
          (vii)  all other amounts  required to be  deposited in the Certificate
     Account pursuant to the Agreement.
 
     The Master Servicer (or the Depositor, as applicable) may from time to time
direct the institution that maintains the Certificate Account to withdraw  funds
from the Certificate Account for the following purposes:
 
          (i)  to pay to the Master Servicer the servicing fees described in the
     related Prospectus  Supplement,  the  master  servicing  fees  (subject  to
     reduction)  and,  as  additional  servicing  compensation,  earnings  on or
     investment income with respect to funds  in the amounts in the  Certificate
     Account credited thereto;
 
          (ii)  to reimburse  the Master  Servicer for  Advances, such  right of
     reimbursement with respect to  any Mortgage Loan  being limited to  amounts
     received  that represent  late recoveries  of payments  of principal and/or
     interest on  such  Mortgage  Loan (or  Insurance  Proceeds  or  Liquidation
     Proceeds with respect thereto) with respect to which such Advance was made;
 
          (iii)  to reimburse  the Master  Servicer for  any Advances previously
     made which the Master Servicer has determined to be nonrecoverable;
 
          (iv) to  reimburse the  Master Servicer  from Insurance  Proceeds  for
     expenses  incurred  by  the  Master Servicer  and  covered  by  the related
     insurance policies;
 
          (v) to reimburse the Master Servicer for unpaid master servicing  fees
     and  unreimbursed out-of-pocket costs  and expenses incurred  by the Master
     Servicer in the  performance of  its servicing obligations,  such right  of
     reimbursement   being  limited   to  amounts   received  representing  late
     recoveries of the payments for which such advances were made;
 
          (vi) to pay to the Master Servicer, with respect to each Mortgage Loan
     or property acquired  in respect  thereof that  has been  purchased by  the
     Master Servicer pursuant to the Agreement, all amounts received thereon and
     not  taken  into  account  in determining  the  principal  balance  of such
     repurchased Mortgage Loan;
 
          (vii) to reimburse the Master  Servicer or the Depositor for  expenses
     incurred and reimbursable pursuant to the Agreement;
 
          (viii) to withdraw any amount deposited in the Certificate Account and
     not required to be deposited therein; and
 
          (ix)  to clear and terminate  the Certificate Account upon termination
     of the Agreement.
 
     In  addition,  unless  otherwise   specified  in  the  related   Prospectus
Supplement,  on  or  prior  to  the  business  day  immediately  preceding  each
Distribution Date,  the  Master Servicer  shall  withdraw from  the  Certificate
Account  the amount of Available Funds, to the extent on deposit, for deposit in
an account maintained by the Trustee for the related Series of Certificates.
 
COLLECTION PROCEDURES
 
     The Master Servicer, directly  or through one  or more Sub-Servicers,  will
make  reasonable efforts to  collect all payments called  for under the Mortgage
Loans and will, consistent with each  Agreement and any Mortgage Pool  Insurance
Policy,  Primary  Mortgage  Insurance  Policy, FHA  Insurance,  VA  Guaranty and
Bankruptcy Bond or alternative  arrangements, follow such collection  procedures
as  are customary  with respect  to mortgage  loans that  are comparable  to the
Mortgage Loans.  Consistent with  the above,  the Master  Servicer may,  in  its
 
                                       40
 
<PAGE>

<PAGE>
discretion,  (i)  waive any  assumption  fee, late  payment  or other  charge in
connection with a Mortgage Loan and (ii) to the extent not inconsistent with the
coverage of such  Mortgage Loan  by a  Mortgage Pool  Insurance Policy,  Primary
Mortgage  Insurance Policy,  FHA Insurance,  VA Guaranty  or Bankruptcy  Bond or
alternative arrangements, if applicable, arrange with a Mortgagor a schedule for
the liquidation of  delinquencies running for  no more than  125 days after  the
applicable  due date  for each  payment. To  the extent  the Master  Servicer is
obligated to make or to cause to  be made Advances, such obligation will  remain
during any period of such an arrangement.
 
     Unless  otherwise specified  in the  related Prospectus  Supplement, in any
case in which  property securing a  conventional Mortgage Loan  has been, or  is
about  to be, conveyed by the Mortgagor, the Master Servicer will, to the extent
it has knowledge of such conveyance or proposed conveyance, exercise or cause to
be exercised its rights to accelerate  the maturity of such Mortgage Loan  under
any  due-on-sale clause  applicable thereto,  but only  if the  exercise of such
rights is permitted by applicable law and will not impair or threaten to  impair
any  recovery  under any  related Primary  Mortgage  Insurance Policy.  If these
conditions are  not met  or if  the Master  Servicer reasonably  believes it  is
unable  under  applicable law  to  enforce such  due-on-sale  clause or  if such
Mortgage Loan is  insured by  the FHA  or partially  guaranteed by  the VA,  the
Master  Servicer will enter into  or cause to be  entered into an assumption and
modification agreement with  the person  to whom such  property has  been or  is
about to be conveyed, pursuant to which such person becomes liable for repayment
of  the  Mortgage Loan  and,  to the  extent  permitted by  applicable  law, the
Mortgagor also remains liable thereon. Any fee collected by or on behalf of  the
Master Servicer for entering into an assumption agreement will be retained by or
on  behalf  of the  Master Servicer  as  additional servicing  compensation. See
'Certain Legal Aspects of the Mortgage Loans -- Due-on-Sale Clauses' herein.  In
connection  with any such assumption, the terms of the related Mortgage Loan may
not be changed.
 
     With respect to Cooperative Loans, any prospective purchaser will generally
have to  obtain  the  approval  of  the  board  of  directors  of  the  relevant
Cooperative  before purchasing the shares and acquiring rights under the related
proprietary lease  or occupancy  agreement. See  'Certain Legal  Aspects of  the
Mortgage Loans' herein. This approval is usually based on the purchaser's income
and net worth and numerous other factors. Although the Cooperative's approval is
unlikely to be unreasonably withheld or delayed, the necessity of acquiring such
approval  could limit  the number of  potential purchasers for  those shares and
otherwise limit the Trust Fund's ability to sell and realize the value of  those
shares.
 
     In  general, a 'tenant-stockholder' (as  defined in Code Section 216(b)(2))
of a corporation that  qualifies as a  'cooperative housing corporation'  within
the meaning of Code Section 216(b)(1) is allowed a deduction for amounts paid or
accrued   within  his   taxable  year   to  the   corporation  representing  his
proportionate share of certain interest  expenses and certain real estate  taxes
allowable as a deduction under Code Section 216(a) to the corporation under Code
Sections  163 and 164. In order for  a corporation to qualify under Code Section
216(b)(1) for its taxable year in which such items are allowable as a  deduction
to the corporation, such Section requires, among other things, that at least 80%
of  the gross income of the  corporation be derived from its tenant-stockholders
(as defined  in Code  Section 216(b)(2)).  By virtue  of this  requirement,  the
status  of  a  corporation  for  purposes  of  Code  Section  216(b)(1)  must be
determined on a year-to-year basis. Consequently, there can be no assurance that
Cooperatives relating to the Cooperative  Loans will qualify under such  Section
for  any particular year. In the event  that such a Cooperative fails to qualify
for one  or  more  years, the  value  of  the collateral  securing  any  related
Cooperative  Loans could be significantly impaired because no deduction would be
allowable to tenant-stockholders under Code Section 216(a) with respect to those
years.  In   view   of  the   significance   of  the   tax   benefits   accorded
tenant-stockholders   of  a  corporation  that   qualifies  under  Code  Section
216(b)(1), the likelihood  that such a  failure would be  permitted to  continue
over a period of years appears remote.
 
HAZARD INSURANCE
 
     The  Master Servicer  will require the  Mortgagor on each  Mortgage Loan to
maintain a hazard insurance  policy providing for no  less than the coverage  of
the  standard form of fire insurance policy with extended coverage customary for
the type of Mortgaged Property in the state in which such Mortgaged Property  is
located. Such coverage will be in an amount that is at least equal to the lesser
of  (i) the maximum  insurable value of the  improvements securing such Mortgage
Loan or  (ii)  the greater  of  (y) the  outstanding  principal balance  of  the
Mortgage  Loan and (z) an amount such that  the proceeds of such policy shall be
sufficient to  prevent  the  mortgagor  and/or the  mortgagee  from  becoming  a
co-insurer. All amounts collected by the Master Servicer under any hazard policy
(except  for amounts to be applied to the restoration or repair of the Mortgaged
Property or released to the Mortgagor  in accordance with the Master  Servicer's
normal  servicing  procedures)  will  be deposited  in  the  related Certificate
Account.  In  the   event  that   the  Master  Servicer   maintains  a   blanket
 
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<PAGE>
policy  insuring against hazard losses on all the Mortgage Loans comprising part
of a Trust Fund, it will conclusively be deemed to have satisfied its obligation
relating to the maintenance of hazard insurance. Such blanket policy may contain
a deductible  clause, in  which case  the Master  Servicer will  be required  to
deposit from its own funds into the related Certificate Account the amounts that
would have been deposited therein but for such clause.
 
     In  general, the standard form of  fire and extended coverage policy covers
physical damage to or destruction of  the improvements securing a Mortgage  Loan
by fire, lightning, explosion, smoke, windstorm and hail, riot, strike and civil
commotion,  subject  to the  conditions  and exclusions  particularized  in each
policy. Although  the policies  relating to  the Mortgage  Loans may  have  been
underwritten by different insurers under different state laws in accordance with
different  applicable forms  and therefore may  not contain  identical terms and
conditions, the basic terms thereof are  dictated by the respective state  laws,
and most such policies typically do not cover any physical damage resulting from
the  following: war, revolution,  governmental actions, floods  and other water-
related causes,  earth  movement  (including  earthquakes,  landslides  and  mud
flows),  nuclear reactions, wet or dry rot, vermin, rodents, insects or domestic
animals, theft and, in  certain cases, vandalism. The  foregoing list is  merely
indicative  of certain kinds  of uninsured risks  and is not  intended to be all
inclusive. If the Mortgaged  Property securing a Mortgage  Loan is located in  a
federally  designated special flood area at  the time of origination, the Master
Servicer will require the Mortgagor to obtain and maintain flood insurance.
 
     The hazard  insurance policies  covering properties  securing the  Mortgage
Loans  typically contain a  clause which in  effect requires the  insured at all
times to carry insurance of a specified percentage (generally 80% to 90%) of the
full replacement value  of the  insured property in  order to  recover the  full
amount of any partial loss. If the insured's coverage falls below this specified
percentage,  then the insurer's liability in the  event of partial loss will not
exceed the larger of (i) the actual cash value (generally defined as replacement
cost at  the  time  and  place  of loss,  less  physical  depreciation)  of  the
improvements  damaged or destroyed  or (ii) such  proportion of the  loss as the
amount of  insurance carried  bears  to the  specified  percentage of  the  full
replacement  cost of such improvements. Since the amount of hazard insurance the
Master Servicer may  cause to  be maintained  on the  improvements securing  the
Mortgage  Loans declines as  the principal balances  owing thereon decrease, and
since improved real estate generally has  appreciated in value over time in  the
past,  the effect of this  requirement in the event of  partial loss may be that
hazard insurance  proceeds will  be insufficient  to restore  fully the  damaged
property.  If specified in  the related Prospectus  Supplement, a special hazard
insurance policy will  be obtained to  insure against certain  of the  uninsured
risks  described  above. See  'Credit  Enhancement --  Special  Hazard Insurance
Policies' herein  and  'Credit  Enhancements  --  Insurance  --  Special  Hazard
Insurance Policy' in the related Prospectus Supplement.
 
     The  Master  Servicer will  not  require that  a  standard hazard  or flood
insurance policy  be maintained  on  the cooperative  dwelling relating  to  any
Cooperative   Loan.  Generally,  the  Cooperative   itself  is  responsible  for
maintenance of hazard insurance  for the property owned  by the Cooperative  and
the  tenant-stockholders of that  Cooperative do not  maintain individual hazard
insurance policies. To the extent, however,  that a Cooperative and the  related
borrower on a Cooperative Loan do not maintain such insurance or do not maintain
adequate  coverage or any insurance proceeds  are not applied to the restoration
of damaged property, any damage to such borrower's cooperative dwelling or  such
Cooperative's  building could significantly  reduce the value  of the collateral
securing such  Cooperative  Loan to  the  extent  not covered  by  other  credit
support.
 
REALIZATION UPON DEFAULTED MORTGAGE LOANS
 
     Primary  Mortgage Insurance Policies.  The Master Servicer will maintain or
cause to be maintained,  as the case may  be, in full force  and effect, to  the
extent  specified  in  the  related Prospectus  Supplement,  a  Primary Mortgage
Insurance Policy with regard  to each Mortgage Loan  for which such coverage  is
required.  The  Master Servicer  will not  cancel  or refuse  to renew  any such
Primary Mortgage Insurance Policy in effect at the time of the initial  issuance
of  a Series  of Certificates  that is required  to be  kept in  force under the
applicable Agreement unless  the replacement Primary  Mortgage Insurance  Policy
for  such cancelled  or nonrenewed  policy is  maintained with  an insurer whose
claims-paying ability  is  sufficient to  maintain  the current  rating  of  the
classes of Certificates of such Series that have been rated.
 
     Although  the terms and conditions of  primary mortgage insurance vary, the
amount of  a  claim for  benefits  under  a Primary  Mortgage  Insurance  Policy
covering  a Mortgage Loan will  consist of the insured  percentage of the unpaid
principal amount of the  covered Mortgage Loan and  accrued and unpaid  interest
thereon  and  reimbursement of  certain expenses,  less (i)  all rents  or other
payments collected or received by the insured (other than the proceeds of hazard
insurance) that  are  derived  from or  in  any  way related  to  the  Mortgaged
Property,  (ii) hazard  insurance proceeds in  excess of the  amount required to
restore the Mortgaged Property and which have not been applied to the payment of
the  Mortgage   Loan,  (iii)   amounts  expended   but  not   approved  by   the
 
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<PAGE>
issuer of the related Primary Mortgage Insurance Policy (the 'Primary Insurer'),
(iv)  claim  payments previously  made  by the  Primary  Insurer and  (v) unpaid
premiums.
 
     Primary Mortgage Insurance Policies  reimburse certain losses sustained  by
reason of defaults in payments by borrowers. Primary Mortgage Insurance Policies
will  not insure against, and exclude from  coverage, a loss sustained by reason
of a default arising from or  involving certain matters, including (i) fraud  or
negligence  in  origination  or  servicing  of  the  Mortgage  Loans,  including
misrepresentation by the originator, Mortgagor or other persons involved in  the
origination  of  the  Mortgage Loan;  (ii)  failure to  construct  the Mortgaged
Property subject to the Mortgage Loan in accordance with specified plans;  (iii)
physical damage to the Mortgaged Property; and (iv) the related Sub-Servicer not
being approved as a servicer by the Primary Insurer.
 
     Recoveries  Under  a  Primary  Mortgage Insurance  Policy.    As conditions
precedent to  the filing  of or  payment of  a claim  under a  Primary  Mortgage
Insurance  Policy covering a Mortgage Loan, the  insured will be required to (i)
advance or  discharge  (a) all  hazard  insurance  policy premiums  and  (b)  as
necessary  and  approved in  advance  by the  Primary  Insurer, (1)  real estate
property taxes,  (2) all  expenses required  to maintain  the related  Mortgaged
Property  in at least  as good a condition  as existed at  the effective date of
such Primary Mortgage  Insurance Policy,  ordinary wear and  tear excepted,  (3)
Mortgaged Property sales expenses, (4) any outstanding liens (as defined in such
Primary Mortgage Insurance Policy) on the Mortgaged Property and (5) foreclosure
costs,  including court costs and reasonable  attorneys' fees; (ii) in the event
of any physical  loss or damage  to the Mortgaged  Property, have the  Mortgaged
Property restored and repaired to at least as good a condition as existed at the
effective date of such Primary Mortgage Insurance Policy, ordinary wear and tear
excepted; and (iii) tender to the Primary Insurer good and merchantable title to
and possession of the Mortgaged Property.
 
     The   Master  Servicer,   on  behalf  of   itself,  the   Trustee  and  the
Certificateholders, will  present  claims  to the  insurer  under  each  Primary
Mortgage  Insurance Policy, and will take such reasonable steps as are necessary
to receive payment or  to permit recovery thereunder  with respect to  defaulted
Mortgage  Loans. As  set forth  above, all  collections by  or on  behalf of the
Master Servicer  under  any Primary  Mortgage  Insurance Policy  and,  when  the
Mortgaged Property has not been restored, the hazard insurance policy, are to be
deposited  in  the  Certificate  Account, subject  to  withdrawal  as heretofore
described.
 
     If the Mortgaged Property securing a defaulted Mortgage Loan is damaged and
proceeds, if any, from the related  hazard insurance policy are insufficient  to
restore  the  damaged Mortgaged  Property to  a  condition sufficient  to permit
recovery under the related Primary Mortgage Insurance Policy, if any, the Master
Servicer is  not  required  to expend  its  own  funds to  restore  the  damaged
Mortgaged  Property unless it determines (i) that such restoration will increase
the proceeds to  Certificateholders on  liquidation of the  Mortgage Loan  after
reimbursement  of  the  Master Servicer  for  its  expenses and  (ii)  that such
expenses  will  be  recoverable  by  it  from  related  Insurance  Proceeds   or
Liquidation Proceeds.
 
     If recovery on a defaulted Mortgage Loan under any related Primary Mortgage
Insurance  Policy is not  available for the  reasons set forth  in the preceding
paragraph, or  if  the defaulted  Mortgage  Loan is  not  covered by  a  Primary
Mortgage  Insurance Policy, the  Master Servicer will be  obligated to follow or
cause to be followed such normal practices and procedures as it deems  necessary
or advisable to realize upon the defaulted Mortgage Loan. If the proceeds of any
liquidation  of the Mortgaged Property securing  the defaulted Mortgage Loan are
less than the  principal balance  of such  Mortgage Loan  plus interest  accrued
thereon  that is  payable to Certificateholders,  the Trust Fund  will realize a
loss in the amount of such difference plus the aggregate of expenses incurred by
the Master Servicer in  connection with such  proceedings that are  reimbursable
under the Agreement. In the unlikely event that any such proceedings result in a
total  recovery  which is,  after reimbursement  to the  Master Servicer  of its
expenses, in excess of the principal balance of such Mortgage Loan plus interest
accrued thereon that is payable to Certificateholders, the Master Servicer  will
be  entitled  to  withdraw  or  retain  from  the  Certificate  Account  amounts
representing its normal  servicing compensation  with respect  to such  Mortgage
Loan  and,  unless otherwise  specified  in the  related  Prospectus Supplement,
amounts representing  the  balance  of  such excess,  exclusive  of  any  amount
required  by  law  to  be  forwarded to  the  related  Mortgagor,  as additional
servicing compensation.
 
     If the Master Servicer or  its designee recovers Insurance Proceeds  which,
when  added to any  related Liquidation Proceeds and  after deduction of certain
expenses reimbursable to the Master Servicer, exceed the principal balance of  a
Mortgage   Loan   plus   interest   accrued   thereon   that   is   payable   to
Certificateholders, the Master Servicer will  be entitled to withdraw or  retain
from   the  Certificate  Account  amounts   representing  its  normal  servicing
compensation with respect to  such Mortgage Loan. In  the event that the  Master
Servicer  has expended its  own funds to restore  the damaged Mortgaged Property
and such  funds have  not been  reimbursed under  the related  hazard  insurance
policy,  it will  be entitled  to withdraw from  the Certificate  Account out of
related Liquidation  Proceeds or  Insurance  Proceeds an  amount equal  to  such
expenses  incurred by it, in which event the Trust Fund may realize a loss up to
the   amount   so    charged.   Since   Insurance    Proceeds   cannot    exceed
 
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<PAGE>
deficiency  claims and certain expenses incurred by the Master Servicer, no such
payment or recovery will result in a recovery to the Trust Fund that exceeds the
principal balance of the defaulted Mortgage Loan together with accrued  interest
thereon.   See  'Credit  Enhancement'  herein  and  in  the  related  Prospectus
Supplement.
 
     Unless otherwise  specified in  the related  Prospectus Supplement  or  the
related  Agreement, the proceeds from any liquidation of a Mortgage Loan will be
applied in  the following  order of  priority: first,  to reimburse  the  Master
Servicer  for any  unreimbursed expenses incurred  by it to  restore the related
Mortgaged Property and  any unreimbursed servicing  compensation payable to  the
Master  Servicer with  respect to such  Mortgage Loan; second,  to reimburse the
Master Servicer  for any  unreimbursed Advances  with respect  to such  Mortgage
Loan;  third, to accrued and unpaid interest  (to the extent no Advance has been
made for  such amount)  on such  Mortgage Loan;  and fourth,  as a  recovery  of
principal of such Mortgage Loan.
 
     FHA  Insurance; VA  Guaranties.  Mortgage  Loans designated  in the related
Prospectus Supplement  as insured  by the  FHA will  be insured  by the  FHA  as
authorized  under  the  United States  Housing  Act  of 1937,  as  amended. Such
Mortgage Loans will be insured under various FHA programs including the standard
FHA 203(b)  program to  finance the  acquisition of  one-to four-family  housing
units  and  the  FHA  245 graduated  payment  mortgage  program.  These programs
generally limit the principal  amount and interest rates  of the mortgage  loans
insured.  Mortgage Loans  insured by  the FHA  generally require  a minimum down
payment of approximately  5% of the  original principal amount  of the loan.  No
FHA-insured  Mortgage Loans relating  to a Series  may have an  interest rate or
original principal amount  exceeding the applicable  FHA limits at  the time  of
origination of such loan.
 
     The  insurance premiums for Mortgage Loans insured by the FHA are collected
by lenders approved by the Department  of Housing and Urban Development  ('HUD')
or  by the  Master Servicer or  any Sub-Servicers and  are paid to  the FHA. The
regulations governing FHA single-family mortgage insurance programs provide that
insurance benefits are payable either upon foreclosure (or other acquisition  of
possession)  and conveyance of the mortgaged  premises to HUD or upon assignment
of the defaulted Mortgage Loan to  HUD. With respect to a defaulted  FHA-insured
Mortgage Loan, the Master Servicer or any Sub-Servicer is limited in its ability
to initiate foreclosure proceedings. When it is determined, either by the Master
Servicer  or any Sub-Servicer  or HUD, that default  was caused by circumstances
beyond the  Mortgagor's control,  the  Master Servicer  or any  Sub-Servicer  is
expected  to make an effort to avoid  foreclosure by entering, if feasible, into
one of a number of available forms of forbearance plans with the Mortgagor. Such
plans may involve the reduction or suspension of regular mortgage payments for a
specified period, with such  payments to be  made up on  or before the  maturity
date  of the mortgage, or the recasting of payments due under the mortgage up to
or beyond  the  maturity  date. In  addition,  when  a default  caused  by  such
circumstances  is accompanied by certain other  criteria, HUD may provide relief
by making payments to the Master Servicer or any Sub-Servicer in partial or full
satisfaction of amounts due  under the Mortgage Loan  (which payments are to  be
repaid  by the Mortgagor to HUD) or by accepting assignment of the loan from the
Master Servicer or  any Sub-Servicer.  With certain exceptions,  at least  three
full monthly installments must be due and unpaid under the Mortgage Loan and HUD
must  have rejected any request for relief  from the Mortgagor before the Master
Servicer or any Sub-Servicer may initiate foreclosure proceedings.
 
     HUD has the option, in  most cases, to pay insurance  claims in cash or  in
debentures  issued by HUD. Currently, claims are  being paid in cash, and claims
have  not  been  paid  in  debentures  since  1965.  HUD  debentures  issued  in
satisfaction  of  FHA  insurance  claims bear  interest  at  the  applicable HUD
debentures interest  rate.  The Master  Servicer  of any  Sub-Servicer  of  each
FHA-insured  Mortgage  Loan will  be obligated  to  purchase any  such debenture
issued in satisfaction of such Mortgage Loan upon default for an amount equal to
the principal amount of any such debenture.
 
     The amount of insurance benefits generally paid by the FHA is equal to  the
entire  unpaid  principal  amount of  the  defaulted Mortgage  Loan  adjusted to
reimburse the Master Servicer or Sub-Servicer for certain costs and expenses and
to deduct  certain  amounts received  or  retained  by the  Master  Servicer  or
Sub-Servicer  after default. When entitlement to insurance benefits results from
foreclosure (or  other acquisition  of possession)  and conveyance  to HUD,  the
Master  Servicer or Sub-Servicer  is compensated for no  more than two-thirds of
its foreclosure costs, and is compensated for interest accrued and unpaid  prior
to  such date but  in general only  to the extent  it was allowed  pursuant to a
forbearance plan approved by HUD. When entitlement to insurance benefits results
from assignment of the Mortgage Loan to HUD, the insurance payment includes full
compensation for  interest  accrued  and  unpaid to  the  assignment  date.  The
insurance  payment  itself, upon  foreclosure of  an FHA-insured  Mortgage Loan,
bears interest  from a  date 30  days after  the Mortgagor's  first  uncorrected
failure  to perform any  obligation to make  any payment due  under the Mortgage
Loan and, upon assignment, from the date of assignment to the date of payment of
the claim,  in  each case  at  the same  interest  rate as  the  applicable  HUD
debenture interest rate as described above.
 
                                       44
 
<PAGE>

<PAGE>
     Mortgage   Loans  designated  in  the   related  Prospectus  Supplement  as
guaranteed by  the  VA  will  be  partially  guaranteed  by  the  VA  under  the
Serviceman's  Readjustment  Act  of  1944, as  amended  (a  'VA  Guaranty'). The
Serviceman's Readjustment Act  of 1944,  as amended,  permits a  veteran (or  in
certain instances the spouse of a veteran) to obtain a mortgage loan guaranty by
the  VA covering  mortgage financing  of the purchase  of a  one- to four-family
dwelling unit at interest rates permitted by the VA. The program has no mortgage
loan limits,  requires  no down  payment  from  the purchaser  and  permits  the
guarantee  of mortgage loans of  up to 30 years'  duration. However, no Mortgage
Loan guaranteed by the  VA will have an  original principal amount greater  than
five times the partial VA guaranty for such Mortgage Loan.
 
     The  maximum guaranty that  may be issued  by the VA  under a VA guaranteed
mortgage loan depends upon the original  principal amount of the mortgage  loan,
as further described in 38 United States Code Section 1803(a), as amended. As of
January  1, 1990, the maximum guaranty  that may be issued by  the VA under a VA
guaranteed mortgage loan  of more  than $144,000  is the  lesser of  25% of  the
original principal amount of the mortgage loan and $46,000. The liability on the
guaranty  is reduced or increased pro rata with any reduction or increase in the
amount of indebtedness, but in no event will the amount payable on the  guaranty
exceed  the  amount of  the original  guaranty. The  VA may,  at its  option and
without regard  to the  guaranty, make  full  payment to  a mortgage  holder  of
unsatisfied indebtedness on a mortgage upon its assignment to the VA.
 
     With  respect  to  a  defaulted VA  guaranteed  Mortgage  Loan,  the Master
Servicer or  Sub-Servicer is,  absent exceptional  circumstances, authorized  to
announce  its intention  to foreclose  only when  the default  has continued for
three months. Generally, a claim for the guaranty is submitted after liquidation
of the Mortgaged Property.
 
     The amount  payable  under the  guaranty  will  be the  percentage  of  the
VA-insured   Mortgage  Loan   originally  guaranteed   applied  to  indebtedness
outstanding as  of  the applicable  date  of  computation specified  in  the  VA
regulations.  Payments under the guaranty will  be equal to the unpaid principal
amount of the loan, interest  accrued on the unpaid balance  of the loan to  the
appropriate  date of computation  and limited expenses of  the mortgagee, but in
each case only to the extent that  such amounts have not been recovered  through
liquidation of the Mortgaged Property. The amount payable under the guaranty may
in no event exceed the amount of the original guaranty.
 
SERVICING AND OTHER COMPENSATION AND PAYMENT OF EXPENSES
 
     The  principal servicing compensation to be  paid to the Master Servicer in
respect of its master servicing activities for each Series of Certificates  will
be  equal  to  the percentage  per  annum  described in  the  related Prospectus
Supplement (which  may  vary under  certain  circumstances) of  the  outstanding
principal  balance of each Mortgage Loan, and such compensation will be retained
by it from collections of  interest on such Mortgage  Loan in the related  Trust
Fund  (the 'Master  Servicing Fee'). Unless  otherwise specified  in the related
Prospectus Supplement, as compensation for its servicing duties, a  Sub-Servicer
or,  if there  is no  Sub-Servicer, the  Master Servicer  will be  entitled to a
monthly servicing  fee as  described in  the related  Prospectus Supplement.  In
addition,  the  Master Servicer  or a  Sub-Servicer  will retain  all prepayment
charges, assumption fees and late payment charges, to the extent collected  from
Mortgagors,  and any benefit  that may accrue  as a result  of the investment of
funds in the applicable Certificate  Account (unless otherwise specified in  the
related Prospectus Supplement).
 
     The  Master Servicer will pay or cause  to be paid certain ongoing expenses
associated with  each Trust  Fund and  incurred  by it  in connection  with  its
responsibilities  under  the related  Agreement, including,  without limitation,
payment of any fee or other amount payable in respect of any credit  enhancement
arrangements,  payment  of  the  fees  and  disbursements  of  the  Trustee, any
custodian appointed by  the Trustee,  the certificate registrar  and any  paying
agent,  and  payment  of  expenses  incurred  in  enforcing  the  obligations of
Sub-Servicers and Sellers. The Master Servicer will be entitled to reimbursement
of expenses incurred in enforcing  the obligations of Sub-Servicers and  Sellers
under  certain limited circumstances. In addition, as indicated in the preceding
section, the  Master Servicer  will  be entitled  to reimbursement  for  certain
expenses  incurred by it  in connection with  any defaulted Mortgage  Loan as to
which it has determined that all recoverable Liquidation Proceeds and  Insurance
Proceeds  have been received  (a 'Liquidated Mortgage'),  and in connection with
the restoration of Mortgaged Properties, such right of reimbursement being prior
to the rights of Certificateholders to receive any related Liquidation  Proceeds
(including Insurance Proceeds).
 
EVIDENCE AS TO COMPLIANCE
 
     Each  Agreement will  provide that  on or before  a specified  date in each
year, a firm of independent public  accountants will furnish a statement to  the
Trustee  to  the effect  that,  on the  basis of  the  examination by  such firm
conducted substantially  in  compliance  with  the  Uniform  Single  Attestation
Program  for Mortgage  Bankers or the  Audit Program for  Mortgages serviced for
FHLMC,   the   servicing   by   or   on   behalf   of   the   Master    Servicer
 
                                       45
 
<PAGE>

<PAGE>
of  Mortgage  Loans, Private  Mortgage-Backed  Securities or  Agency Securities,
under Agreements  substantially similar  to each  other (including  the  related
Agreement)  was  conducted in  compliance with  such  agreements except  for any
significant exceptions or errors  in records that, in  the opinion of the  firm,
the  Audit Program for Mortgages serviced for  FHLMC or the Uniform Single Audit
Program for Mortgage Bankers requires it  to report. In rendering its  statement
such  firm may rely, as to matters  relating to the direct servicing of Mortgage
Loans, Private Mortgage-Backed Securities or Agency Securities by Sub-Servicers,
upon  comparable  statements   for  examinations   conducted  substantially   in
compliance  with the Uniform Single Attestation  Program for Mortgage Bankers or
the Audit Program for Mortgages serviced for FHLMC (rendered within one year  of
such  statement) of firms of independent  public accountants with respect to the
related Sub-Servicer.
 
     Each Agreement will also provide for delivery to the Trustee, on or  before
a  specified date in each year, of an annual statement signed by two officers of
the Master Servicer  to the effect  that the Master  Servicer has fulfilled  its
obligations under the Agreement throughout the preceding year.
 
     Copies  of the annual accountants' statement  and the statement of officers
of the Master  Servicer may  be obtained  by Certificateholders  of the  related
Series without charge upon written request to the Master Servicer at the address
set forth in the related Prospectus Supplement.
 
LIST OF CERTIFICATEHOLDERS
 
     Each  Agreement will provide that three  or more holders of Certificates of
any Series may, by written request to the Trustee, obtain access to the list  of
all   Certificateholders  maintained   by  the   Trustee  for   the  purpose  of
communicating with other Certificateholders with  respect to their rights  under
the Agreement and the Certificates.
 
CERTAIN MATTERS REGARDING THE MASTER SERVICER AND THE DEPOSITOR
     The  Master  Servicer under  each Agreement  will be  named in  the related
Prospectus Supplement. The  entity serving  as Master Servicer  may have  normal
business relationships with the Depositor or the Depositor's affiliates.
     Each  Agreement will provide  that the Master Servicer  may not resign from
its obligations and duties under the Agreement except upon a determination  that
the  performance by it of  its duties thereunder is  no longer permissible under
applicable law. No such resignation will become effective until the Trustee or a
successor servicer  has assumed  the Master  Servicer's obligations  and  duties
under the Agreement.
     Each  Agreement will further provide that  neither the Master Servicer, the
Depositor nor any director, officer, employee,  or agent of the Master  Servicer
or  the  Depositor will  be under  any liability  to the  related Trust  Fund or
Certificateholders for any action taken or for refraining from the taking of any
action in  good faith  pursuant to  the Agreement,  or for  errors in  judgment;
provided,  however, that neither the Master Servicer, the Depositor nor any such
person will be protected against any  liability that would otherwise be  imposed
by  reason of willful misfeasance, bad faith or negligence in the performance of
duties thereunder or by reason of  reckless disregard of obligations and  duties
thereunder.  Each Agreement will  further provide that  the Master Servicer, the
Depositor and any director, officer, employee or agent of the Master Servicer or
the Depositor will be entitled to indemnification by the related Trust Fund  and
will  be  held  harmless against  any  loss,  liability or  expense  incurred in
connection with any legal action relating to the Agreement or the  Certificates,
other than any loss, liability or expense related to any specific Mortgage Asset
or  Mortgage  Assets  (except  any such  loss,  liability  or  expense otherwise
reimbursable pursuant  to the  Agreement)  and any  loss, liability  or  expense
incurred  by  reason of  willful  misfeasance, bad  faith  or negligence  in the
performance  of  duties  thereunder  or  by  reason  of  reckless  disregard  of
obligations and duties thereunder. In addition, each Agreement will provide that
neither  the Master Servicer nor  the Depositor will be  under any obligation to
appear in, prosecute or defend any legal  action which is not incidental to  its
respective  responsibilities under  the Agreement and  which in  its opinion may
involve it in  any expense or  liability. The Master  Servicer or the  Depositor
may,  however, in  its discretion  undertake any such  action which  it may deem
necessary or desirable with respect to  the Agreement and the rights and  duties
of  the parties thereto and the  interests of the Certificateholders thereunder.
In such event, the  legal expenses and  costs of such  action and any  liability
resulting  therefrom will be expenses, costs  and liabilities of the Trust Fund,
and the Master Servicer or the Depositor,  as the case may be, will be  entitled
to   be   reimbursed  therefor   out   of  funds   otherwise   distributable  to
Certificateholders.
     Any person into which the Master Servicer may be merged or consolidated, or
any person  resulting from  any  merger or  consolidation  to which  the  Master
Servicer  is a  party, or any  person succeeding  to the business  of the Master
Servicer, will be  the successor of  the Master Servicer  under each  Agreement,
provided  that such person is  qualified to sell mortgage  loans to, and service
mortgage loans  on behalf  of, FNMA  or  FHLMC and  further provided  that  such
merger,  consolidation or succession does not  adversely affect the then current
rating or ratings of the  class or classes of  Certificates of such Series  that
have been rated.
 
                                       46
 
<PAGE>

<PAGE>
EVENTS OF DEFAULT
     Unless  otherwise specified in the related Prospectus Supplement, Events of
Default under  each Agreement  will consist  of (i)  any failure  by the  Master
Servicer  to deposit  in the  Certificate Account  or remit  to the  Trustee any
payment (other than an Advance) which  continues unremedied for five days  after
the  giving of  written notice  of such  failure to  the Master  Servicer by the
Trustee or the  Depositor, or  to the  Master Servicer  and the  Trustee by  the
holders  of Certificates having not less than 25% of the Voting Rights evidenced
by the Certificates; (ii) any failure by the Master Servicer to make an  Advance
as  required under the  Agreement, unless cured as  specified therein; (iii) any
failure by the Master Servicer to observe or perform in any material respect any
of its other covenants or agreements in the Agreement which continues unremedied
for sixty days after the giving of written notice of such failure to the  Master
Servicer  by the  Trustee or the  Depositor, or  to the Master  Servicer and the
Trustee by the holders of Certificates of any class evidencing not less than 25%
of the Voting Rights  evidenced by the Certificate;  and (iv) certain events  of
insolvency,  readjustment  of debt,  marshalling  of assets  and  liabilities or
similar proceeding and certain  actions by or on  behalf of the Master  Servicer
indicating  its insolvency, reorganization or  inability to pay its obligations.
'Voting Rights' are  the portion  of voting rights  of all  of the  Certificates
which is allocated to any Certificate pursuant to the terms of the Agreement.
 
     If  specified  in the  related  Prospectus Supplement,  the  Agreement will
permit the Trustee to sell the Mortgage Assets and the other assets of the Trust
Fund in the  event that  payments in respect  thereto are  insufficient to  make
payments  required in the Agreement.  The assets of the  Trust Fund will be sold
only under  the  circumstances  and  in the  manner  specified  in  the  related
Prospectus Supplement.
 
RIGHTS UPON EVENT OF DEFAULT
 
     So  long as an Event of Default  under an Agreement remains unremedied, the
Depositor or the Trustee  may, and at the  direction of holders of  Certificates
having not less than 25% of the Voting Rights and under such other circumstances
as  may be specified in such Agreement,  the Trustee shall, terminate all of the
rights and obligations of  the Master Servicer under  the Agreement relating  to
such  Trust Fund and in  and to the Mortgage  Assets, whereupon the Trustee will
succeed to all  of the responsibilities,  duties and liabilities  of the  Master
Servicer  under the Agreement, including, if specified in the related Prospectus
Supplement, the obligation  to make Advances,  and will be  entitled to  similar
compensation  arrangements. In the event that the Trustee is unwilling or unable
so to act, it may appoint, or petition a court of competent jurisdiction for the
appointment of, a  mortgage loan servicing  institution with a  net worth of  at
least  $10,000,000  to  act  as  successor  to  the  Master  Servicer  under the
Agreement. Pending such  appointment, the Trustee  is obligated to  act in  such
capacity.  The  Trustee and  any  such successor  may  agree upon  the servicing
compensation to be  paid to the  successor servicer,  which in no  event may  be
greater  than  the  compensation  payable  to  the  Master  Servicer  under  the
Agreement.
 
     No Certificateholder,  solely  by  virtue  of such  holder's  status  as  a
Certificateholder,  will have  any right  under any  Agreement to  institute any
proceeding with respect  to such  Agreement, unless such  holder previously  has
given  to the Trustee  written notice of  default and unless  the holders of any
class of Certificates of such Series evidencing not less than 25% of the  Voting
Rights  have made written request upon  the Trustee to institute such proceeding
in its own name as Trustee thereunder and have offered to the Trustee reasonable
indemnity, and the Trustee for 60 days has neglected or refused to institute any
such proceeding.
 
AMENDMENT
 
     Unless otherwise  specified  in  the related  Prospectus  Supplement,  each
Agreement  may be amended by the Depositor, the Master Servicer and the Trustee,
without the consent of any of the Certificateholders, (i) to cure any ambiguity;
(ii) to correct or  supplement any provision therein  which may be defective  or
inconsistent  with  any other  provision  therein; or  (iii)  to make  any other
revisions with respect to matters or questions arising under the Agreement  that
are not inconsistent with the provisions thereof, provided that such action will
not  as evidenced  by an  opinion of counsel,  adversely affect  in any material
respect the interests of any Certificateholder; provided, however, that no  such
opinion  of counsel  will be  required if  the person  requesting such amendment
obtains a letter from each rating agency requested to rate the class or  classes
of  Certificates of such Series  stating that such amendment  will not result in
the downgrading or withdrawal  of the respective ratings  then assigned to  such
Certificates.  In addition, to the extent  provided in the related Agreement, an
Agreement may be amended without the consent of any of the Certificateholders to
change the manner in which the Certificate Account is maintained, provided  that
any  such change does not adversely affect  the then current rating of the class
or classes of Certificates of such Series that have been rated. In addition,  if
a REMIC election is made with respect to a Trust Fund, the related Agreement may
be  amended to modify, eliminate or add to  any of its provisions to such extent
as may be necessary to maintain the qualification of the related Trust Fund as a
REMIC, provided  that the  Trustee has  received an  opinion of  counsel to  the
effect that such action is necessary
 
                                       47
 
<PAGE>

<PAGE>
or  helpful to  maintain such qualification.  Unless otherwise  specified in the
related Prospectus  Supplement,  each  Agreement  may also  be  amended  by  the
Depositor,  the Master Servicer and  the Trustee with the  consent of holders of
Certificates of such  Series evidencing  a majority  in interest  of each  class
affected  thereby for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of the Agreement or of modifying  in
any  manner the  rights of  the holders  of the  related Certificates; provided,
however, that no such amendment may (i)  reduce in any manner the amount of,  or
delay  the timing of, payments received on  Mortgage Assets that 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 interests of the
holders of any class of Certificates in a manner other than as described in (i),
without the consent of the holders of Certificates of such class evidencing,  as
to  such class, percentage interests aggregating 66%, (iii) reduce the aforesaid
percentage of Certificates of any class  of holders that is required to  consent
to  any such amendment without the consent of the holders of all Certificates of
such class covered by  such Agreement then outstanding.  If a REMIC election  is
made  with respect to a Trust Fund, the  Trustee will not be entitled to consent
to an  amendment to  the  related Agreement  without  having first  received  an
opinion  of counsel to the effect that  such amendment will not cause such Trust
Fund to fail to qualify as a REMIC.
 
TERMINATION; OPTIONAL TERMINATION
 
     Unless otherwise  specified  in  the  related  Agreement,  the  obligations
created  by each Agreement  for each Series of  Certificates will terminate upon
the payment  to  the related  Certificateholders  of  all amounts  held  in  the
Certificate  Account or by the  Master Servicer and required  to be paid to them
pursuant to such Agreement following the later of (i) the final payment or other
liquidation  of  the  last  of  the  Mortgage  Assets  subject  thereto  or  the
disposition  of  all property  acquired upon  foreclosure  of any  such Mortgage
Assets remaining in the Trust Fund and (ii) the purchase by the Master  Servicer
or,  if  REMIC  treatment has  been  elected  and if  specified  in  the related
Prospectus Supplement, by the holder of the residual interest in the REMIC  (see
'Certain  Federal Income Tax  Consequences' below and  in the related Prospectus
Supplement), from the related Trust Fund of all of the remaining Mortgage Assets
and all property acquired in respect of such Mortgage Assets.
 
     Unless otherwise  specified  in  the  related  Prospectus  Supplement,  any
purchase  of Mortgage Assets and property acquired in respect of Mortgage Assets
evidenced by a Series of Certificates will  be made at the option of the  Master
Servicer  or, if  applicable, the  holder of the  REMIC residual  interest, at a
price,  and  in  accordance  with  the  procedures,  specified  in  the  related
Prospectus  Supplement. The exercise of such  right will effect early retirement
of the Certificates of that Series, but the right of the Master Servicer or,  if
applicable,  such  holder of  the  REMIC residual  interest,  to so  purchase is
subject to the principal balance of the related Mortgage Assets being less  than
the  percentage specified in the related  Prospectus Supplement of the aggregate
principal balance of the Mortgage Assets at the Cut-off Date for the Series. The
foregoing is subject  to the provision  that if  a REMIC election  is made  with
respect  to a Trust Fund,  any repurchase pursuant to  clause (ii) above will be
made only in connection with a  'qualified liquidation' of the REMIC within  the
meaning of Section 860F(g)(4) of the Code.
 
THE TRUSTEE
 
     The Trustee under each Agreement will be named in the applicable Prospectus
Supplement.  The commercial  bank or trust  company serving as  Trustee may have
normal banking relationships with the Depositor, the Master Servicer and any  of
their respective affiliates.
 
                  CERTAIN LEGAL ASPECTS OF THE MORTGAGE LOANS
 
     The  following discussion contains summaries,  which are general in nature,
of certain legal  matters relating  to the  Mortgage Loans.  Because such  legal
aspects  are governed primarily  by applicable state law  (which laws may differ
substantially), the summaries do  not purport to be  complete or to reflect  the
laws of any particular state or to encompass the laws of all states in which the
security  for the  Mortgage Loans  is situated.  The summaries  are qualified in
their entirety  by reference  to the  appropriate laws  of the  states in  which
Mortgage Loans may be originated.
 
GENERAL
 
     The  Mortgage Loans will be secured  by deeds of trust, mortgages, security
deeds or deeds  to secure debt,  depending upon the  prevailing practice in  the
state  in which the property subject to the  loan is located. Deeds of trust are
used almost exclusively in California instead of mortgages. A mortgage creates a
lien upon the real property encumbered by the mortgage, which lien is  generally
not  prior to the lien  for real estate taxes  and assessments. Priority between
mortgages depends on their terms and generally on the order of recording with  a
 
                                       48
 
<PAGE>

<PAGE>
state  or county office. There are two parties to a mortgage, the mortgagor, who
is the borrower and owner of the  mortgaged property, and the mortgagee, who  is
the  lender.  Under  the  mortgage instrument,  the  mortgagor  delivers  to the
mortgagee a note or bond and the  mortgage. Although a deed of trust is  similar
to a mortgage, a deed of trust formally has three parties, the borrower-property
owner  called  the trustor  (similar to  a  mortgagor), a  lender (similar  to a
mortgagee) called the beneficiary, and a third-party grantee called the trustee.
Under a deed of trust, the  borrower grants the property, irrevocably until  the
debt is paid, in trust, generally with a power of sale, to the trustee to secure
payment of the obligation. A security deed and a deed to secure debt are special
types  of deeds which indicate on their face  that they are granted to secure an
underlying debt.  By executing  a security  deed  or deed  to secure  debt,  the
grantor conveys title to, as opposed to merely creating a lien upon, the subject
property  to the grantee until  such time as the  underlying debt is repaid. The
trustee's authority under  a deed of  trust, the mortgagee's  authority under  a
mortgage  and the grantee's  authority under a  security deed or  deed to secure
debt are  governed  by  law and,  with  respect  to some  deeds  of  trust,  the
directions of the beneficiary.
 
     Cooperatives.   Certain of the Mortgage Loans may be Cooperative Loans. The
Cooperative owns all the real property that comprises the project, including the
land, separate dwelling units and all common areas. The Cooperative is  directly
responsible  for project management  and, in most cases,  payment of real estate
taxes and hazard and liability insurance. If there is a blanket mortgage on  the
Cooperative  and/or underlying land, as is  generally the case, the Cooperative,
as  project  mortgagor,   is  also  responsible   for  meeting  these   mortgage
obligations.  A blanket  mortgage is ordinarily  incurred by  the Cooperative in
connection with  the construction  or purchase  of the  Cooperative's  apartment
building.  The interest  of the occupant  under proprietary  leases or occupancy
agreements to which that Cooperative is a party are generally subordinate to the
interest of  the  holder  of the  blanket  mortgage  in that  building.  If  the
Cooperative  is unable to meet the payment obligations arising under its blanket
mortgage, the mortgagee  holding the  blanket mortgage could  foreclose on  that
mortgage   and  terminate  all  subordinate  proprietary  leases  and  occupancy
agreements. In  addition, the  blanket  mortgage on  a Cooperative  may  provide
financing  in  the  form of  a  mortgage that  does  not fully  amortize  with a
significant portion of principal  being due in one  lump sum at final  maturity.
The  inability of the Cooperative to  refinance this mortgage and its consequent
inability to make such final payment could lead to foreclosure by the  mortgagee
providing  the financing.  A foreclosure  in either event  by the  holder of the
blanket mortgage  could eliminate  or significantly  diminish the  value of  any
collateral  held  by  the lender  who  financed  the purchase  by  an individual
tenant-stockholder of  Cooperative  shares or,  in  the  case of  a  Trust  Fund
including Cooperative Loans, the collateral securing the Cooperative Loans.
 
     The  Cooperative is owned by  tenant-stockholders who, through ownership of
stock, shares or membership certificates in the corporation, receive proprietary
leases or occupancy agreements which confer exclusive rights to occupy  specific
units.  Generally, a  tenant-stockholder of  a Cooperative  must make  a monthly
payment to the Cooperative representing such tenant-stockholder's pro rata share
of the Cooperative's  payments for  its blanket mortgage,  real property  taxes,
maintenance  expenses  and  other  capital or  ordinary  expenses.  An ownership
interest in  a  Cooperative  and  accompanying  rights  is  financed  through  a
Cooperative  share loan evidenced by a promissory note and secured by a security
interest in the  occupancy agreement  or proprietary  lease and  in the  related
Cooperative  shares. The lender takes possession  of the share certificate and a
counterpart of the  proprietary lease  or occupancy agreement,  and a  financing
statement  covering  the  proprietary  lease  or  occupancy  agreement  and  the
Cooperative shares  is filed  in  the appropriate  state  and local  offices  to
perfect  the lender's  interest in  its collateral.  Subject to  the limitations
discussed below, upon default of the tenant-stockholder, the lender may sue  for
judgment  on  the promissory  note, dispose  of  the collateral  at a  public or
private sale or otherwise proceed  against the collateral or  tenant-stockholder
as  an individual as provided in  the security agreement covering the assignment
of the proprietary lease  or occupancy agreement and  the pledge of  Cooperative
shares.
 
FORECLOSURE/REPOSSESSION
 
     Deed of Trust.  Foreclosure of a deed of trust is generally accomplished by
a  non-judicial  sale under  a specific  provision  in the  deed of  trust which
authorizes the trustee to sell the  property at public auction upon any  default
by the borrower under the terms of the note or deed of trust. In certain states,
such  foreclosure  also may  be accomplished  by judicial  action in  the manner
provided for foreclosure of mortgages. In  some states, such as California,  the
trustee  must record a notice of default and send a copy to the borrower-trustor
and to any person who has recorded a request for a copy of any notice of default
and notice of sale. In addition, the trustee must provide notice in some  states
to  any other  individual having  an interest  of record  in the  real property,
including any junior lienholders. If the deed of trust is not reinstated  within
any  applicable cure period, a  notice of sale must be  posted in a public place
and, in most states, including California,  published for a specified period  of
 
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time  in one  or more newspapers.  In addition, these  notice provisions require
that a copy of  the notice of  sale be posted  on the property  and sent to  all
parties  having an interest of record in the property. In California, the entire
process from recording a notice of default to a non-judicial sale usually  takes
four to five months.
 
     In some states, including California, the borrower-trustor has the right to
reinstate  the  loan at  any  time following  default  until shortly  before the
trustee's sale. In general,  the borrower, or any  other person having a  junior
encumbrance  on the  real estate, may,  during a reinstatement  period, cure the
default by  paying the  entire amount  in arrears  plus the  costs and  expenses
incurred  in enforcing the obligation. Certain  state laws control the amount of
foreclosure  expenses  and  costs,  including  attorney's  fees,  which  may  be
recoverable by a lender.
 
     Mortgages.  Foreclosure of a mortgage is generally accomplished by judicial
action.  The action  is initiated  by the  service of  legal pleadings  upon all
parties having an  interest in the  real property. Delays  in completion of  the
foreclosure  may  occasionally result  from  difficulties in  locating necessary
parties. Judicial foreclosure proceedings are often not contested by any of  the
parties.  When  the mortgagee's  right to  foreclosure  is contested,  the legal
proceedings necessary to  resolve the  issue can  be time  consuming. After  the
completion  of a judicial  foreclosure proceeding, the  court generally issues a
judgment of foreclosure and appoints a referee or other court officer to conduct
the sale of the property. In general, the borrower, or any other person having a
junior encumbrance  on the  real estate,  may, during  a statutorily  prescribed
reinstatement  period, cure  a monetary default  by paying the  entire amount in
arrears plus  other designated  costs  and expenses  incurred in  enforcing  the
obligation. Generally, state law controls the amount of foreclosure expenses and
costs,  including attorney's fees, which may be recovered by a lender. After the
reinstatement period  has expired  without the  default having  been cured,  the
borrower  or junior lienholder no longer has the right to reinstate the loan and
must pay the loan in full to prevent the scheduled foreclosure sale. If the deed
of trust is not reinstated,  a notice of sale must  be posted in a public  place
and,  in most  states, published for  a specific period  of time in  one or more
newspapers. In addition, some state  laws require that a  copy of the notice  of
sale be posted on the property and sent to all parties having an interest in the
real property.
 
     Although  foreclosure sales are typically public sales, frequently no third
party purchaser bids in excess of the lender's lien because of the difficulty of
determining  the  exact  status   of  title  to   the  property,  the   possible
deterioration   of  the  property  during  the  foreclosure  proceedings  and  a
requirement that the  purchaser pay  for the property  in cash  or by  cashier's
check. Thus the foreclosing lender often purchases the property from the trustee
or  referee for an  amount equal to  the principal amount  outstanding under the
loan, accrued and unpaid interest  and the expenses of foreclosure.  Thereafter,
the  lender  will assume  the burden  of  ownership, including  obtaining hazard
insurance and making such repairs at its own expense as are necessary to  render
the  property suitable for sale. The lender will commonly obtain the services of
a real estate broker and pay the broker's commission in connection with the sale
of the property. Depending upon market conditions, the ultimate proceeds of  the
sale of the property may not equal the lender's investment in the property.
 
     Courts  have imposed  general equitable principles  upon foreclosure, which
are generally designed to mitigate the legal consequences to the borrower of the
borrower's defaults under the loan documents.  Some courts have been faced  with
the  issue of whether federal or  state constitutional provisions reflecting due
process concerns for  fair notice require  that borrowers under  deeds of  trust
receive  notice longer than that prescribed by statute. For the most part, these
cases have upheld the notice provisions  as being reasonable or have found  that
the  sale by a trustee  under a deed of trust  does not involve sufficient state
action to afford constitutional protection to the borrower.
 
     Cooperative Loans.  The Cooperative shares owned by the  tenant-stockholder
and  pledged to the lender are, in  almost all cases, subject to restrictions on
transfer as  set forth  in the  Cooperative's certificate  of incorporation  and
bylaws,  as well  as the  proprietary lease or  occupancy agreement,  and may be
cancelled by the Cooperative for failure  by the tenant-stockholder to pay  rent
or  other  obligations or  charges  owed by  such  tenant-stockholder, including
mechanics' liens against  the cooperative  apartment building  incurred by  such
tenant-stockholder.  The  proprietary  lease  or  occupancy  agreement generally
permits the Cooperative  to terminate such  lease or agreement  in the event  an
obligor  fails  to make  payments or  defaults in  the performance  of covenants
required thereunder.  Typically, the  lender and  the Cooperative  enter into  a
recognition  agreement  which establishes  the  rights and  obligations  of both
parties in the event of a  default by the tenant-stockholder on its  obligations
under   the  proprietary  lease  or  occupancy   agreement.  A  default  by  the
tenant-stockholder under  the  proprietary  lease or  occupancy  agreement  will
usually constitute a default under the security agreement between the lender and
the tenant-stockholder.
 
     The  recognition agreement generally  provides that, in  the event that the
tenant-stockholder has  defaulted  under  the  proprietary  lease  or  occupancy
agreement,  the  Cooperative will  take  no action  to  terminate such  lease or
agreement until the  lender has been  provided with an  opportunity to cure  the
default.  The recognition agreement  typically provides that  if the proprietary
lease or occupancy agreement is terminated, the Cooperative
 
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<PAGE>
will recognize  the  lender's  lien  against  proceeds  from  the  sale  of  the
Cooperative  apartment, subject, however, to the Cooperative's right to sums due
under such proprietary lease  or occupancy agreement. The  total amount owed  to
the  Cooperative by  the tenant-stockholder,  which the  lender generally cannot
restrict and does not  monitor, could reduce the  value of the collateral  below
the outstanding principal balance of the Cooperative Loan and accrued and unpaid
interest thereon.
 
     Recognition agreements also provide that in the event of a foreclosure on a
Cooperative  Loan,  the  lender  must  obtain the  approval  or  consent  of the
Cooperative as  required  by  the  proprietary  lease  before  transferring  the
Cooperative  shares or assigning the proprietary lease. Generally, the lender is
not limited in any rights it may have to dispossess the tenant-stockholders.
 
     In some states, foreclosure on the Cooperative shares is accomplished by  a
sale  in accordance with the  provisions of Article 9  of the Uniform Commercial
Code (the 'UCC') and the security agreement relating to those shares. Article  9
of  the UCC  requires that  a sale be  conducted in  a 'commercially reasonable'
manner. Whether  a  foreclosure  sale  has been  conducted  in  a  'commercially
reasonable'  manner  will  depend on  the  facts  in each  case.  In determining
commercial reasonableness, a court will look to the notice given the debtor  and
the  method, manner, time, place and terms of the foreclosure. Generally, a sale
conducted according to the  usual practice of  banks selling similar  collateral
will be considered reasonably conducted.
 
     Article 9 of the UCC provides that the proceeds of the sale will be applied
first  to  pay the  costs  and expenses  of  the sale  and  then to  satisfy the
indebtedness  secured  by  the  lender's  security  interest.  The   recognition
agreement,  however, generally provides that the lender's right to reimbursement
is subject  to the  right  of the  Cooperative to  receive  sums due  under  the
proprietary  lease or occupancy agreement. If  there are proceeds remaining, the
lender must account to the tenant-stockholder for the surplus. Conversely, if  a
portion  of the indebtedness remains unpaid, the tenant-stockholder is generally
responsible for  the  deficiency.  See 'Anti-Deficiency  Legislation  and  Other
Limitations on Lenders' below.
 
     In  the case of foreclosure on a building which was converted from a rental
building to a building  owned by a Cooperative  under a non-eviction plan,  some
states  require that a purchaser at a foreclosure sale take the property subject
to rent control and rent stabilization  laws which apply to certain tenants  who
elected  to  remain in  the  building but  who did  not  purchase shares  in the
Cooperative when the building was so converted.
 
RIGHTS OF REDEMPTION
 
     In some states after sale pursuant to  a deed of trust or foreclosure of  a
mortgage,  the  borrower  and  certain foreclosed  junior  lienors  are  given a
statutory period in which to redeem  the property from the foreclosure sale.  In
certain  other states,  including California,  this right  of redemption applies
only to sales  following judicial foreclosure,  and not to  sales pursuant to  a
non-judicial  power of  sale. In  most states where  the right  of redemption is
available, statutory  redemption  may  occur upon  payment  of  the  foreclosure
purchase  price, accrued interest and taxes. In some states, the right to redeem
is an equitable right. The  effect of a right of  redemption is to diminish  the
ability  of the lender to sell the  foreclosed property. The exercise of a right
of redemption would defeat the title of any purchaser at a foreclosure sale,  or
of  any purchaser  from the  lender subsequent  to judicial  foreclosure or sale
under a deed  of trust.  Consequently, the  practical effect  of the  redemption
right  is to  force the lender  to retain the  property and pay  the expenses of
ownership until the redemption period has run.
 
ANTI-DEFICIENCY LEGISLATION AND OTHER LIMITATIONS ON LENDERS
 
     Certain states have imposed statutory restrictions that limit the  remedies
of  a beneficiary under a deed of trust or a mortgagee under a mortgage. In some
states, including California,  statutes limit  the right of  the beneficiary  or
mortgagee  to  obtain  a  deficiency  judgment  against  the  borrower following
foreclosure or sale under a deed of  trust. A deficiency judgment is a  personal
judgment  against the borrower equal in most cases to the difference between the
amount due to the lender  and the current fair market  value of the property  at
the  time of  the foreclosure  sale. As  a result  of these  prohibitions, it is
anticipated that  in  most  instances  the  Master  Servicer  will  utilize  the
non-judicial  foreclosure remedy and will  not seek deficiency judgments against
defaulting Mortgagors.
 
     Some state statutes may require the beneficiary or mortgagee to exhaust the
security afforded under a deed of trust or mortgage by foreclosure in an attempt
to satisfy the full debt before bringing a personal action against the borrower.
In certain other states, the lender has the option of bringing a personal action
against the  borrower  on  the  debt without  first  exhausting  such  security;
however,  in  some  of these  states,  the  lender, following  judgment  on such
personal action, may be  deemed to have  elected a remedy  and may be  precluded
from  exercising  remedies  with  respect  to  the  security.  Consequently, the
practical effect of the election requirement,
 
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<PAGE>
when applicable, is that lenders will usually proceed first against the security
rather than bringing a personal action against the borrower.
 
     In some states, exceptions to the anti-deficiency statutes are provided for
in certain instances where the value of the lender's security has been  impaired
by  acts or omissions of the borrower, for example, in the event of waste of the
property.
 
     In addition  to anti-deficiency  and  related legislation,  numerous  other
federal  and state statutory provisions,  including the federal bankruptcy laws,
the federal  Soldiers' and  Sailors' Civil  Relief Act  of 1940  and state  laws
affording  relief to debtors,  may interfere with  or affect the  ability of the
secured mortgage  lender  to  realize  upon its  security.  For  example,  in  a
proceeding  under the federal Bankruptcy  Code, a lender may  not foreclose on a
mortgaged  property  without  the  permission  of  the  bankruptcy  court.   The
rehabilitation  plan  proposed  by  the debtor  may  provide,  if  the mortgaged
property is not the debtor's principal  residence and the court determines  that
the  value of the mortgaged  property is less than  the principal balance of the
mortgage loan, for the reduction of the secured indebtedness to the value of the
mortgaged property  as  of the  date  of  the commencement  of  the  bankruptcy,
rendering  the lender a general unsecured  creditor for the difference, and also
may reduce the monthly payments due under such mortgage loan, change the rate of
interest and alter the mortgage loan repayment schedule. The effect of any  such
proceedings  under the federal Bankruptcy Code, including but not limited to any
automatic stay, could  result in delays  in receiving payments  on the  Mortgage
Loans  underlying  a  Series  of Certificates  and  possible  reductions  in the
aggregate amount of such payments.
 
     The federal tax laws provide priority to certain tax liens over the lien of
a mortgage or secured party. Numerous federal and state consumer protection laws
impose substantive requirements  upon mortgage  lenders in  connection with  the
origination, servicing and enforcement of mortgage loans. These laws include the
federal  Truth-in-Lending  Act,  Real Estate  Settlement  Procedures  Act, Equal
Credit Opportunity Act, Fair Credit Billing  Act, Fair Credit Reporting Act  and
related  statutes and regulations. These federal  and state laws impose specific
statutory liabilities upon lenders who fail to comply with the provisions of the
law. In  some  cases,  this liability  may  affect  assignees of  the  loans  or
contracts.
 
     Generally,  Article 9 of the UCC  governs foreclosure on Cooperative shares
and the  related proprietary  lease  or occupancy  agreement. Some  courts  have
interpreted  section 9-504 of the UCC to  prohibit a deficiency award unless the
creditor establishes that the sale  of the collateral (which,  in the case of  a
Cooperative  Loan,  would  be the  shares  of  the Cooperative  and  the related
proprietary lease  or  occupancy  agreement) was  conducted  in  a  commercially
reasonable manner.
 
ENVIRONMENTAL RISKS
 
     Real  property pledged as security to a lender may be subject to unforeseen
environmental risks.  Under  the laws  of  certain states,  contamination  of  a
property  may give rise to a  lien on the property to  assure the payment of the
costs of clean-up. In several states such  a lien has priority over the lien  of
an  existing  mortgage against  such property.  In  addition, under  the federal
Comprehensive Environmental  Response, Compensation  and Liability  Act of  1980
('CERCLA'), the United States Environmental Protection Agency ('EPA') may impose
a  lien on property where the EPA has incurred clean-up costs. However, a CERCLA
lien is subordinate to pre-existing, perfected security interests.
 
     Under the laws of some states, and  under CERCLA, it is conceivable that  a
secured  lender may be held liable as an  'owner' or 'operator' for the costs of
addressing  releases  or  threatened  releases  of  hazardous  substances  at  a
Mortgaged Property, even though the environmental damage or threat was caused by
a prior or current owner or operator. CERCLA imposes liability for such costs on
any  and  all 'responsible  parties,'  including owners  or  operators. However,
CERCLA excludes from the  definition of 'owner or  operator' a secured  creditor
who  holds indicia of ownership primarily  to protect its security interest (the
'secured creditor exclusion'). Thus, if a lender's activities begin to  encroach
on  the actual management of a contaminated facility or property, the lender may
incur liability as an 'owner or  operator' under CERCLA. Similarly, if a  lender
forecloses  and takes title  to a contaminated facility  or property, the lender
may incur CERCLA liability in various circumstances, including, but not  limited
to,  when it holds the facility or  property as an investment (including leasing
the facility or property to a third party), or fails to market the property in a
timely fashion.
 
     A decision  in May  1990 of  the United  States Court  of Appeals  for  the
Eleventh Circuit in United States v. Fleet Factors Corp. very narrowly construed
CERCLA's secured creditor exclusion. The Court's opinion suggested that a lender
need  not have involved itself in the  day-to-day operations of the facility, or
participated in decisions  related to hazardous  waste to be  held liable  under
CERCLA;  rather, liability could attach to a  lender if its involvement with the
management of the  facility is broad  enough to support  the inference that  the
lender  had the capacity to influence  the borrower's hazardous waste management
practices. The Court added that a
 
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lender's capacity to influence such decisions could be inferred from the  extent
of  its involvement in the facility's financial management. In January 1991, the
Supreme Court denied certiorari in the  Fleet Factors case, thereby letting  the
Court  of Appeals decision stand. In response  to the Fleet Factors decision, on
April 29, 1992, the EPA issued regulations interpreting and delineating CERCLA's
secured creditor exclusion  and the  range of  permissible actions  that may  be
undertaken by a holder of a security interest in a contaminated property without
exceeding  the bounds of the secured creditor exclusion. However, on February 4,
1994, the United States  Court of Appeals for  the District of Columbia  Circuit
issued a decision in Kelley v. EPA invalidating the EPA regulations. Further, in
January  1995, the Supreme  Court denied certiorari in  the Kelley case, thereby
letting the Court of Appeals decision stand. In September 1995, the EPA and  the
U.S.  Department  of Justice  issued a  guidance document  stating that  the two
agencies,  respectively,  would  apply  the  1992  regulations  in   prosecuting
enforcement  and  cost  recovery  actions, and  in  otherwise  addressing lender
liability under CERCLA. However,  this guidance document is  not binding on  any
parties other than the federal government, and need not be applied by the courts
in  adjudicating CERCLA cost recovery or contribution actions brought by states,
municipalities or private parties.
 
     As a result of the  Kelley decision, the state of  the law with respect  to
the  secured creditor exclusion  remains unclear. Proposed  amendments to CERCLA
that would clarify  the range  of actions a  secured creditor  may take  without
losing  the benefit of the exclusion have  been introduced in Congress, but have
not been enacted. However,  even if CERCLA were  to be amended, such  amendments
would  not affect the potential for liability  under other federal or state laws
which impose  liability  on  'owners  or  operators'  but  do  not  provide  any
protection for secured creditors.
 
     If  a lender is or becomes liable,  it can bring an action for contribution
against any other 'responsible parties,' including a previous owner or operator,
who created  the environmental  hazard, but  those persons  or entities  may  be
bankrupt  or otherwise judgment  proof. The costs  associated with environmental
cleanup may be substantial. It is  conceivable that such costs arising from  the
circumstances set forth above would result in a loss to Certificateholders.
 
     CERCLA  does  not apply  to petroleum  products,  and the  secured creditor
exclusion does not govern liability for  cleanup costs under federal laws  other
than  CERCLA, in particular Subtitle I  of the federal Resource Conservation and
Recovery Act  ('RCRA'),  which  regulates underground  petroleum  storage  tanks
(except  heating oil  tanks). The  EPA has adopted  a lender  liability rule for
underground storage tanks under Subtitle I of RCRA. Under such rule, a holder of
a security interest in an underground  storage tank or real property  containing
an  underground storage  tank is not  considered an operator  of the underground
storage tank as long as petroleum is  not added to, stored in or dispensed  from
the  tank. It should be noted, however,  that liability for cleanup of petroleum
contamination may  be governed  by state  law,  which may  not provide  for  any
specific protection for secured creditors.
 
     Except  as otherwise specified in  the applicable Prospectus Supplement, at
the time the Mortgage  Loans were originated, no  environmental assessment or  a
very limited environmental assessment of the Mortgage Properties was conducted.
 
DUE-ON-SALE CLAUSES
 
     Unless  otherwise  provided  in  the  related  Prospectus  Supplement, each
conventional  Mortgage  Loan  will  contain  a  due-on-sale  clause  which  will
generally  provide that if the mortgagor  or obligor sells, transfers or conveys
the Mortgaged Property, the loan may be accelerated by the mortgagee. In  recent
years,   court  decisions  and  legislative   actions  have  placed  substantial
restriction on the right of lenders to enforce such clauses in many states.  For
instance,  the California  Supreme Court  in August  1978 held  that due-on-sale
clauses were generally  unenforceable. However, the  Garn-St Germain  Depository
Institutions  Act  of  1982  (the 'Garn-St  Germain  Act'),  subject  to certain
exceptions, preempts state  constitutional, statutory and  case law  prohibiting
the enforcement of due-on-sale clauses. As to loans secured by an owner-occupied
residence, the Garn-St Germain Act sets forth nine specific instances in which a
mortgagee covered by the Garn-St Germain Act may not exercise its rights under a
due-on-sale clause, notwithstanding the fact that a transfer of the property may
have  occurred.  The inability  to enforce  a due-on-sale  clause may  result in
transfer of the related  Mortgaged Property to  an uncreditworthy person,  which
could  increase the likelihood of default or may result in a mortgage bearing an
interest rate below the current market rate  being assumed by a new home  buyer,
which  may  affect the  average life  of the  Mortgage Loans  and the  number of
Mortgage Loans which may extend to maturity.
 
PREPAYMENT CHARGES
 
     Under certain state  laws, prepayment charges  may not be  imposed after  a
certain  period of time following the origination of mortgage loans with respect
to   prepayments    on   loans    secured    by   liens    encumbering    owner-
 
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occupied  residential properties. Since many of the Mortgaged Properties will be
owner-occupied, it is  anticipated that  prepayment charges may  not be  imposed
with  respect to many of the Mortgage Loans.  The absence of such a restraint on
prepayment, particularly with respect to fixed rate Mortgage Loans having higher
Mortgage Rates,  may  increase the  likelihood  of refinancing  or  other  early
retirement of such loans or contracts.
 
APPLICABILITY OF USURY LAWS
 
     Title  V of the  Depository Institutions Deregulation  and Monetary Control
Act of  1980, enacted  in March  1980  ('Title V'),  provides that  state  usury
limitations shall not apply to certain types of residential first mortgage loans
originated  by  certain  lenders after  March  31,  1980. The  Office  of Thrift
Supervision, as successor to the Federal Home Loan Bank Board, is authorized  to
issue   rules  and   regulations  and   to  publish   interpretations  governing
implementation of  Title  V.  The  statute authorized  the  states  to  reimpose
interest  rate limits by adopting, before April 1, 1983, a law or constitutional
provision which  expressly  rejects  an  application  of  the  federal  law.  In
addition,  even where Title V is not so rejected, any state is authorized by the
law to adopt a provision limiting  discount points or other charges on  mortgage
loans  covered by Title V. Certain states have taken action to reimpose interest
rate limits and/or to limit discount points or other charges.
 
SOLDIERS' AND SAILORS' CIVIL RELIEF ACT
 
     Generally, under the terms of the  Soldiers' and Sailors' Civil Relief  Act
of  1940, as amended (the 'Relief Act'),  a borrower who enters military service
after the origination of such borrower's mortgage loan (including a borrower who
is a member of  the National Guard or  is in reserve status  at the time of  the
origination  of the mortgage loan and is later called to active duty) may not be
charged interest above an annual rate of 6% during the period of such borrower's
active duty status,  unless a  court orders  otherwise upon  application of  the
lender.  It is possible that such interest rate limitation could have an effect,
for an indeterminate period of  time, on the ability  of the Master Servicer  to
collect  full  amounts of  interest  on certain  of  the Mortgage  Loans. Unless
otherwise provided in  the applicable  Prospectus Supplement,  any shortfall  in
interest  collections resulting  from the  application of  the Relief  Act could
result in losses to the holders of the Certificates. In addition, the Relief Act
imposes limitations which  would impair the  ability of the  Master Servicer  to
foreclose  on an affected  Mortgage Loan during the  borrower's period of active
duty status. Thus, in  the event that  such a Mortgage  Loan goes into  default,
there  may be delays and losses occasioned  by the inability to realize upon the
Mortgaged Property in a timely fashion.
 
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                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     The  following  summary  of  the anticipated  material  federal  income tax
consequences of the purchase, ownership and disposition of Certificates is based
on the advice of  Brown & Wood  LLP, counsel to the  Depositor. This summary  is
based  on laws, regulations, including the  REMIC regulations promulgated by the
Treasury Department on December 23, 1992 and generally effective for REMICs with
start-up dates on or after November 12, 1991 (the 'REMIC Regulations'),  rulings
and  decisions now in effect  or (with respect to  regulations) proposed, all of
which are subject to change either prospectively or retroactively. This  summary
does  not  address  the federal  income  tax  consequences of  an  investment in
Certificates applicable  to all  categories  of investors,  some of  which  (for
example,  banks  and  insurance  companies) may  be  subject  to  special rules.
Prospective investors should consult their  tax advisors regarding the  federal,
state,  local and any other tax consequences  to them of the purchase, ownership
and disposition of Certificates.
 
GENERAL
 
     The  federal  income  tax  consequences  to  Certificateholders  will  vary
depending  on whether an election is made to  treat the Trust Fund relating to a
particular Series of  Certificates as  a REMIC  under the  Code. The  Prospectus
Supplement for each Series of Certificates will specify whether a REMIC election
will be made.
 
NON-REMIC CERTIFICATES
 
     If  a REMIC election is not made, Brown & Wood LLP will deliver its opinion
that the  Trust Fund  will not  be classified  as an  association taxable  as  a
corporation  and that each such Trust Fund will be classified as a grantor trust
under subpart E, Part  I of subchapter  J of the Internal  Revenue Code of  1986
(the  'Code' referred  to in this  section unless otherwise  indicated). In this
case, owners of Certificates will be treated for federal income tax purposes  as
owners of a portion of the Trust Fund's assets as described below.
 
A. SINGLE CLASS OF CERTIFICATES
 
     Characterization.    The  Trust  Fund  may be  created  with  one  class of
Certificates. In this case, each Certificateholder will be treated as the  owner
of  a pro rata undivided interest in  the interest and principal portions of the
Trust Fund represented by the Certificates and will be considered the  equitable
owner  of a  pro rata undivided  interest in each  of the Mortgage  Loans in the
Pool. Any amounts received  by a Certificateholder in  lieu of amounts due  with
respect  to any Mortgage  Loans because of  a default or  delinquency in payment
will be treated for federal income tax purposes as having the same character  as
the payments they replace.
 
     Each Certificateholder will be required to report on its federal income tax
return  in accordance with such Certificateholder's method of accounting its pro
rata share  of the  entire income  from the  Mortgage Loans  in the  Trust  Fund
represented   by  Certificates,  including  interest,  original  issue  discount
('OID'), if any, prepayment fees, assumption  fees, any gain recognized upon  an
assumption  and late payment charges received by the Master Servicer. Under Code
Sections 162 or 212  each Certificateholder will be  entitled to deduct its  pro
rata  share  of  servicing  fees, prepayment  fees,  assumption  fees,  any loss
recognized upon an assumption  and late payment charges  retained by the  Master
Servicer,  provided that such  amounts are reasonable  compensation for services
rendered to the Trust Fund. Certificateholders that are individuals, estates  or
trusts  will be entitled  to deduct their  share of expenses  only to the extent
such expenses plus such taxpayer's  other miscellaneous itemized deductions  (as
defined  in  the  Code) exceed  two  percent  of its  adjusted  gross  income. A
Certificateholder using the cash method of accounting must take into account its
pro rata share of income and deductions as and when collected by or paid to  the
Master  Servicer. A Certificateholder using an accrual method of accounting must
take into account its pro rata share of income and deductions as they become due
(or received if received prior to when  due) or are paid (or accrued if  accrued
prior  to payment)  to the Master  Servicer. If  the servicing fees  paid to the
Master Servicer  are deemed  to exceed  reasonable servicing  compensation,  the
amount  of such excess could be considered  as an ownership interest retained by
the Master Servicer  (or any  person to whom  the Master  Servicer assigned  for
value  all or  a portion  of the servicing  fees) in  a portion  of the interest
payments on the Mortgage Loans. The Mortgage Loans would then be subject to  the
'coupon stripping' rules of the Code discussed below.
 
     Unless otherwise specified in the related Prospectus Supplement, as to each
Series of Certificates Brown & Wood LLP will have advised the Depositor that:
 
          (i)  a Certificate owned by a 'domestic building and loan association'
     within the meaning of Code  Section 7701(a)(19) representing principal  and
     interest    payments   on   Mortgage   Loans    will   be   considered   to
 
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<PAGE>
     represent  'loans ... secured  by an interest in real property which is ...
     residential property' within the meaning of Code Section 7701(a)(19)(C)(v),
     to the extent that the Mortgage Loans  represented by that  Certificate are
     of a type described in such Code section;
 
          (ii) a Certificate owned by a financial institution described in  Code
     Section  593(a) representing  principal and  interest payments  on Mortgage
     Loans will  be considered  to represent  'qualifying real  property  loans'
     within  the meaning  of Code  Section 593(d)  and the  Treasury regulations
     under Code Section 593, to the  extent that the Mortgage Loans  represented
     by that Certificate are of a type described in such Code section;
 
          (iii)   a  Certificate  owned  by   a  real  estate  investment  trust
     representing an interest in Mortgage Loans will be considered to  represent
     'real  estate assets' within the meaning  of Code Section 856(c)(5)(A), and
     interest income  on the  Mortgage  Loans will  be considered  'interest  on
     obligations  secured by mortgages  on real property'  within the meaning of
     Code  Section  856(c)(3)(B),  to  the   extent  that  the  Mortgage   Loans
     represented  by  that Certificate  are  of a  type  described in  such Code
     section; and
 
          (iv) a Certificate  owned by a REMIC will represent an 'obligation ...
     which is principally  secured,  directly or  indirectly,  by an interest in
     real property' within the meaning of Code Section 860G(a)(3).
 
     Buydown  Loans.  The assets  constituting  certain  Trust Funds may include
Buydown  Loans.  The  characterization  of any  investment in Buydown Loans will
depend  upon the  precise  terms of the related  buydown  agreement,  but to the
extent that such  Buydown  Loans are secured in part by a bank  account or other
personal property, they may not be treated in their entirety as assets described
in the  foregoing  sections  of the  Code.  There  are  no  directly  applicable
precedents   with   respect  to  the  federal   income  tax   treatment  or  the
characterization    of    investments    in    Buydown    Loans.    Accordingly,
Certificateholders  should  consult  their own tax advisors  with respect to the
characterization  of investments in  Certificates  representing an interest in a
Trust Fund that includes Buydown Loans.
 
     Premium.  The price paid for a Certificate by a holder will be allocated to
such holder's undivided interest  in each Mortgage Loan  based on each  Mortgage
Loan's  relative fair market value, so  that such holder's undivided interest in
each Mortgage  Loan  will have  its  own  tax basis.  A  Certificateholder  that
acquires  an  interest in  Mortgage Loans  at  a premium  may elect,  under Code
Section 171, to amortize such premium under a constant interest method, provided
that the underlying  mortgage loans  with respect  to such  Mortgage Loans  were
originated  after  September  27,  1985.  Premium  allocable  to  mortgage loans
originated on  or  before September  27,  1985  should be  allocated  among  the
principal  payments on such mortgage loans  and allowed as an ordinary deduction
as principal payments are made. Amortizable  bond premium will be treated as  an
offset  to interest income  on such Certificate. The  basis for such Certificate
will be reduced  to the  extent that amortizable  premium is  applied to  offset
interest  payments. It is  not clear whether  a reasonable prepayment assumption
should be used in computing amortization of premium allowable under Code Section
171.
 
     If a premium is not subject  to amortization using a reasonable  prepayment
assumption, the holder of a Certificate acquired at a premium should recognize a
loss  if  a Mortgage  Loan (or  an underlying  mortgage loan  with respect  to a
Mortgage Loan) prepays in full, equal  to the difference between the portion  of
the prepaid principal amount of such Mortgage Loan (or underlying mortgage loan)
that  is allocable to the  Certificate and the portion  of the adjusted basis of
the Certificate that is allocable to such Mortgage Loan (or underlying  mortgage
loan).  If a reasonable prepayment assumption  is used to amortize such premium,
it appears that such a loss would  be available, if at all, only if  prepayments
have  occurred at a rate faster than  the reasonable assumed prepayment rate. It
is not  clear  whether  any  other adjustments  would  be  required  to  reflect
differences   between  an  assumed  prepayment  rate  and  the  actual  rate  of
prepayments.
 
     On June 27, 1996 the Internal  Revenue Service (the 'IRS') issued  proposed
regulations   (the   'Amortizable  Bond   Premium  Regulations')   dealing  with
amortizable bond  premium.  These  regulations  specifically  do  not  apply  to
prepayable  debt instruments subject to  Code Section 1272(a)(6). Absent further
guidance from  the IRS,  the Trustee  intends to  account for  amortizable  bond
premium   in  the  manner   described  above.  Prospective   purchasers  of  the
Certificates  should  consult   their  tax  advisors   regarding  the   possible
application of the Amortizable Bond Premium Regulations.
 
     Original  Issue Discount.   The  Internal Revenue  Service (the  'IRS') has
stated in published rulings  that, in circumstances  similar to those  described
herein,  the special  rules of  the Code  relating to  'original issue discount'
(currently Code Sections  1271 through 1273  and 1275) will  be applicable to  a
Certificateholder's
 
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<PAGE>
interest  in those  Mortgage Loans  meeting the  conditions necessary  for these
sections to apply. OID generally must be reported as ordinary gross income as it
accrues under  a  constant  interest  method.  See  '  --  Multiple  Classes  of
Certificates  --  Certificates Representing  Interests in  Loans Other  Than ARM
Loans' below.
 
     Market Discount.  A Certificateholder  that acquires an undivided  interest
in  Mortgage Loans may be subject to  the market discount rules of Code Sections
1276 through 1278  to the extent  an undivided  interest in a  Mortgage Loan  is
considered  to have been purchased at a 'market discount.' Generally, the amount
of market discount is equal to the excess of the portion of the principal amount
of such Mortgage Loan  allocable to such holder's  undivided interest over  such
holder's  tax  basis  in  such  interest.  Market  discount  with  respect  to a
Certificate will  be  considered to  be  zero if  the  amount allocable  to  the
Certificate  is less than 0.25% of  the Certificate's stated redemption price at
maturity multiplied by the weighted average maturity remaining after the date of
purchase. Treasury regulations implementing the  market discount rules have  not
yet  been issued;  therefore, investors  should consult  their own  tax advisors
regarding the application of these rules  and the advisability of making any  of
the elections allowed under Code Sections 1276 through 1278.
 
     The  Code provides that any principal  payment (whether a scheduled payment
or a prepayment) or any gain on  disposition of a market discount bond  acquired
by  the taxpayer after October 22, 1986,  shall be treated as ordinary income to
the extent that it does  not exceed the accrued market  discount at the time  of
such  payment. The amount of accrued market discount for purposes of determining
the tax treatment of subsequent principal payments or dispositions of the market
discount bond is to be reduced by the amount so treated as ordinary income.
 
     The Code also grants the Treasury Department authority to issue regulations
providing for the computation  of accrued market  discount on debt  instruments,
the  principal of which  is payable in  more than one  installment. Although the
Treasury Department  has not  yet  issued regulations,  rules described  in  the
relevant  legislative history describes how market discount should be accrued on
such instruments. According to such legislative history, the holder of a  market
discount  bond may  elect to  accrue market  discount either  on the  basis of a
constant interest  rate or  according to  one  of the  following methods.  If  a
Certificate  is  issued with  OID, the  amount of  market discount  that accrues
during any  accrual period  would  be equal  to the  product  of (i)  the  total
remaining market discount and (ii) a fraction, the numerator of which is the OID
accruing  during the period and the denominator  of which is the total remaining
OID at the beginning of the accrual period. For Certificates issued without OID,
the amount of  market discount  that accrues  during a  period is  equal to  the
product  of (i)  the total  remaining market discount  and (ii)  a fraction, the
numerator of which  is the  amount of stated  interest paid  during the  accrual
period  and the  denominator of  which is  the total  amount of  stated interest
remaining to be paid  at the beginning  of the accrual  period. For purposes  of
calculating  market  discount under  any of  the  above methods  in the  case of
instruments that  provide for  payments that  may be  accelerated by  reason  of
prepayments  of  other  obligations  (which  technically  does  not  include the
Certificates)  securing  such  instruments,   the  same  prepayment   assumption
applicable to calculating the accrual of OID will apply. Because the regulations
described  above have not been  issued, it is impossible  to predict what effect
those regulations might have on the tax treatment of a Certificate purchased  at
a discount or premium in the secondary market.
 
     A  holder  who acquired  a Certificate  at  a market  discount also  may be
required to defer, until  the maturity date of  such Certificate or its  earlier
disposition  in a taxable transaction, the deduction  of a portion of the amount
of interest  that  the  holder  paid  or accrued  during  the  taxable  year  on
indebtedness  incurred or  maintained to purchase  or carry  such Certificate in
excess of the aggregate  amount of interest (including  OID) includible in  such
holder's gross income for the taxable year with respect to such Certificate. The
amount  of such net interest  expense deferred in a  taxable year may not exceed
the amount of market discount accrued on the Certificate for the days during the
taxable year on which the holder held the Certificate and, in general, would  be
deductible  when such market discount is includible in income. The amount of any
remaining deferred deduction is to be taken into account in the taxable year  in
which the Certificate matures or is disposed of in a taxable transaction. In the
case  of a disposition  in which gain or  loss is not recognized  in whole or in
part, any remaining  deferred deduction will  be allowed to  the extent of  gain
recognized  on  the  disposition.  This  deferral rule  does  not  apply  if the
Certificateholder elects to include such market discount in income currently  as
it accrues on all market discount obligations acquired by such Certificateholder
in that taxable year or thereafter.
 
     Election  to  Treat  All Interest  as  OID.  The OID  Regulations  permit a
Certificateholder to  elect  to  accrue all  interest,  discount  (including  de
minimis  market or original  issue discount) and premium  in income as interest,
based on a constant yield method for Certificates acquired on or after April  4,
1994. If such an election were to
 
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<PAGE>
be   made   with   respect  to   a   Certificate  with   market   discount,  the
Certificateholder would be deemed to have made an election to include in  income
currently  market discount  with respect  to all  other debt  instruments having
market discount  that such  Certificateholder acquires  during the  year of  the
election  or thereafter. Similarly, a Certificateholder that makes this election
for a Certificate that is acquired at a  premium will be deemed to have made  an
election  to amortize bond  premium with respect to  all debt instruments having
amortizable bond  premium  that such  Certificateholder  owns or  acquires.  See
'  -- Single Class  of Certificates --  Premium' herein. The  election to accrue
interest, discount and  premium on  a constant yield  method with  respect to  a
Certificate cannot be revoked without the consent of the IRS.
 
B. MULTIPLE CLASSES OF CERTIFICATES
 
     1. Stripped Bonds and Stripped Coupons
 
     Pursuant  to Code Section 1286, the separation of ownership of the right to
receive some or all of the interest payments on an obligation from ownership  of
the  right  to receive  some or  all of  the principal  payments results  in the
creation of 'stripped bonds'  with respect to  principal payments and  'stripped
coupons'  with respect to interest payments.  For purposes of Code Sections 1271
through 1288, Code Section 1286 treats a  stripped bond or a stripped coupon  as
an  obligation issued on the  date that such stripped  interest is created. If a
Trust  Fund  is  created  with  two  classes  of  Certificates,  one  class   of
Certificates  may represent  the right to  principal and  interest, or principal
only,  on  all  or  a  portion  of  the  Mortgage  Loans  (the  'Stripped   Bond
Certificates'),  while the second class of  Certificates may represent the right
to  some  or  all  of  the  interest  on  such  portion  (the  'Stripped  Coupon
Certificates').
 
     Servicing  fees in excess of reasonable servicing fees ('excess servicing')
will be treated under the  stripped bond rules. If  the excess servicing fee  is
less  than 100 basis  points (i.e., 1%  interest on the  Mortgage Loan principal
balance) or  the Certificates  are initially  sold with  a de  minimis  discount
(which  amount may  be calculated without  a prepayment  assumption), any non-de
minimis discount arising from a  subsequent transfer of the Certificates  should
be  treated  as market  discount.  The IRS  appears  to require  that reasonable
servicing fees be calculated  on a Mortgage Loan  by Mortgage Loan basis,  which
could  result in some Mortgage Loans being treated as having more than 100 basis
points of interest stripped off. See ' -- Non-REMIC Certificates' and  'Multiple
Classes of Senior Certificates -- Stripped Bonds and Stripped Coupons' herein.
 
     Although  not entirely clear, a  Stripped Bond Certificate generally should
be treated as an interest in Mortgage  Loans issued on the day such  Certificate
is  purchased for purposes of calculating any OID. Generally, if the discount on
a Mortgage Loan is larger than a  de minimis amount (as calculated for  purposes
of  the OID rules) a purchaser of such  a Certificate will be required to accrue
the discount under the OID rules of  the Code. See ' -- Non-REMIC  Certificates'
and  '  -- Single  Class  of Certificates  --  Original Issue  Discount' herein.
However, a purchaser of a Stripped Bond Certificate will be required to  account
for  any discount on  the Mortgage Loans  as market discount  rather than OID if
either (i) the amount  of OID with  respect to the Mortgage  Loan is treated  as
zero  under the OID de minimis rule when the Certificate was stripped or (ii) no
more than 100 basis points (including any amount of servicing fees in excess  of
reasonable servicing fees) is stripped off of the Trust Fund's Mortgage Loans.
 
     The  precise tax treatment of Stripped Coupon Certificates is substantially
uncertain. The Code could be read literally to require that OID computations  be
made  for each payment from each Mortgage Loan. However, based on the recent IRS
guidance, it  appears  that all  payments  from  a Mortgage  Loan  underlying  a
Stripped Coupon Certificate should be treated as a single installment obligation
subject  to the  OID rules of  the Code, in  which case, all  payments from such
Mortgage Loan would be included in  the Mortgage Loan's stated redemption  price
at maturity for purposes of calculating income on such certificate under the OID
rules of the Code.
 
     It  is unclear under what circumstances, if any, the prepayment of Mortgage
Loans will give  rise to a  loss to the  holder of a  Stripped Bond  Certificate
purchased  at a premium or a Stripped Coupon Certificate. If such Certificate is
treated as a  single instrument (rather  than an interest  in discrete  mortgage
loans)  and the effect of  prepayments is taken into  account in computing yield
with respect to such Certificate, it appears that no loss will be available as a
result of any particular  prepayment unless prepayments occur  at a rate  faster
than  the assumed prepayment rate. However, if such Certificate is treated as an
interest in discrete  Mortgage Loans, or  if no prepayment  assumption is  used,
then  when a Mortgage Loan is prepaid,  the holder of such Certificate should be
 
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able to recognize a loss equal to the portion of the unrecovered premium of such
Certificate that is allocable to such Mortgage Loan.
 
     Holders of Stripped Bond Certificates and Stripped Coupon Certificates  are
urged  to consult with their own tax  advisors regarding the proper treatment of
these Certificates for federal income tax purposes.
 
     2. Certificates Representing Interests in Loans Other Than ARM Loans
 
     The original issue discount rules of  Code Sections 1271 through 1275  will
be  applicable to a  Certificateholder's interest in those  Mortgage Loans as to
which the  conditions for  the  application of  those  sections are  met.  Rules
regarding periodic inclusion of original issue discount in income are applicable
to  mortgages  of  corporations  originated after  May  27,  1969,  mortgages of
noncorporate mortgagors (other than individuals) originated after July 1,  1982,
and  mortgages  of individuals  originated after  March 2,  1984. Under  the OID
Regulations, such original issue discount could arise by the charging of  points
by  the originator of  the mortgage in  an amount greater  than the statutory de
minimis exception, including a payment of points that is currently deductible by
the borrower under applicable Code  provisions, or under certain  circumstances,
by the presence of 'teaser' rates (i.e., the initial rates on the Mortgage Loans
are lower than subsequent rates on the Mortgage Loans) on the Mortgage Loans.
 
     OID on each Certificate must be included in the owner's ordinary income for
federal  income  tax  purposes as  it  accrues,  in accordance  with  a constant
interest method that takes into account the compounding of interest, in  advance
of  receipt of the cash attributable to  such income. The amount of OID required
to be  included in  an owner's  income in  any taxable  year with  respect to  a
Certificate representing an interest in Mortgage Loans other than Mortgage Loans
with  interest  rates  that adjust  periodically  ('ARM Loans')  likely  will be
computed as described below under ' -- Accrual of Original Issue Discount.'  The
following  discussion is based in part on Treasury regulations issued on January
27, 1994, under Code Sections 1271 through 1273 and 1275 (the 'OID Regulations')
and in part on the  provisions of the Tax Reform  Act of 1986 (the '1986  Act').
The  OID Regulations generally  are effective for debt  instruments issued on or
after April 4, 1994, but  may be relied upon as  authority with respect to  debt
instruments  issued after  December 21,  1992. Alternatively,  proposed Treasury
regulations issued  December 21,  1992  may be  treated  as authority  for  debt
instruments  issued after  December 21,  1992 and  prior to  April 4,  1994, and
proposed Treasury  regulations  issued  in  1986 and  1991  may  be  treated  as
authority  for instruments  issued before December  21, 1992.  In applying these
dates, the issued date of the Mortgage Loans should be used, or, in the case  of
Stripped  Bond  Certificates  or  Stripped Coupon  Certificates,  the  date such
Certificates are acquired. The holder of a Certificate should be aware, however,
that neither the  proposed OID  Regulations nor the  OID Regulations  adequately
address certain issues relevant to prepayable securities.
 
     Under  the Code,  the Mortgage  Loans underlying  the Certificates  will be
treated as having been issued on the date the were originated with an amount  of
OID  equal to  the excess  of such  Mortgage Loan's  stated redemption  price at
maturity over its issue price. The issue  price of a Mortgage Loan is  generally
the  amount lent to  the mortgagee, which  may be adjusted  to take into account
certain loan origination  fees. The  stated redemption  price at  maturity of  a
Mortgage  Loan is the sum of all payments to be made on such Mortgage Loan other
than payments  that  are treated  as  qualified stated  interest  payments.  The
accrual  of this OID,  as described below  under ' --  Accrual of Original Issue
Discount,'  will,  unless   otherwise  specified  in   the  related   Prospectus
Supplement,   utilize  the  original  yield  to  maturity  of  the  Certificates
calculated based on a reasonable assumed prepayment rate for the mortgage  loans
underlying  the Certificates (the  'Prepayment Assumption'), and  will take into
account  events  that  occur  during  the  calculation  period.  The  Prepayment
Assumption  will be determined in the manner prescribed by regulations that have
not yet been issued. The legislative  history of the 1986 Act (the  'Legislative
History')  provides,  however,  that  the  regulations  will  require  that  the
Prepayment Assumption be the prepayment  assumption that is used in  determining
the  offering  price of  such Certificate.  No representation  is made  that any
Certificate will prepay at the Prepayment  Assumption or at any other rate.  The
prepayment  assumption  contained in  the Code  literally  only applies  to debt
instruments collateralized  by  other  debt  instruments  that  are  subject  to
prepayment rather than direct ownership interests in such debt instruments, such
as  the  Certificates  represent.  However, no  other  legal  authority provides
guidance with regard to the proper  method for accruing OID on obligations  that
are  subject to  prepayment, and, until  further guidance is  issued, the Master
Servicer intends to calculate and report OID under the method described below.
 
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     Accrual of Original Issue Discount.  Generally, the owner of a  Certificate
must  include in gross income the sum of the 'daily portions,' as defined below,
of the OID on such Certificate for  each day on which it owns such  Certificate,
including  the date of  purchase but excluding  the date of  disposition. In the
case of  an original  owner, the  daily portions  of OID  with respect  to  each
component generally will be determined as set forth under the OID Regulations. A
calculation  will be made by the Master  Servicer or such other entity specified
in the related Prospectus Supplement of  the portion of OID that accrues  during
each  successive  monthly accrual  period (or  shorter period  from the  date of
original issue) that ends on the day in the calendar year corresponding to  each
of  the Distribution Dates  on the Certificates  (or the day  prior to each such
date). This will  be done, in  the case of  each full month  accrual period,  by
adding  (i) the present  value at the  end of the  accrual period (determined by
using as a  discount factor  the original yield  to maturity  of the  respective
component  under  the Prepayment  Assumption) of  all  remaining payments  to be
received under the Prepayment  Assumption on the  respective component and  (ii)
any  payments received  during such  accrual period,  and subtracting  from that
total the 'adjusted issue price' of the respective component at the beginning of
such accrual period. The adjusted issue price of a Certificate at the  beginning
of  the first accrual period  is its issue price; the  adjusted issue price of a
Certificate at the  beginning of  a subsequent  accrual period  is the  adjusted
issue  price at the  beginning of the immediately  preceding accrual period plus
the amount of OID allocable to that accrual period reduced by the amount of  any
payment  made at  the end  of or  during that  accrual period.  The OID accruing
during such accrual period  will then be  divided by the number  of days in  the
period  to determine the daily  portion of OID for each  day in the period. With
respect to an initial accrual period shorter than a full monthly accrual period,
the daily  portions  of OID  must  be  determined according  to  an  appropriate
allocation under any reasonable method.
 
     Original issue discount generally must be reported as ordinary gross income
as  it accrues  under a  constant interest  method that  takes into  account the
compounding of interest as  it accrues rather than  when received. However,  the
amount  of original issue  discount includible in  the income of  a holder of an
obligation is reduced when the obligation is acquired after its initial issuance
at a price greater than the sum  of the original issue price and the  previously
accrued  original issue discount, less prior payments of principal. Accordingly,
if such Mortgage Loans acquired by a Certificateholder are purchased at a  price
equal  to the then  unpaid principal amount  of such Mortgage  Loan, no original
issue discount attributable to  the difference between the  issue price and  the
original  principal amount of such  Mortgage Loan (e.g., due  to points) will be
includible by such holder. Other original  issue discount on the Mortgage  Loans
(e.g., that arising from a 'teaser' rate) would still need to be accrued.
 
     3. Certificates Representing Interests in ARM Loans
 
     The  OID Regulations do  not address the treatment  of instruments, such as
the Certificates, which represent interests in ARM Loans. Additionally, the  IRS
has  not issued guidance under the Code's coupon stripping rules with respect to
such instruments. In  the absence  of any  authority, the  Master Servicer  will
report   OID  on   Certificates  attributable   to  ARM   Loans  ('Stripped  ARM
Obligations') to holders in  a manner it believes  is consistent with the  rules
described  above under the  heading ' --  Certificates Representing Interests in
Loans  Other  Than  ARM  Loans'  and  with  the  OID  Regulations.  In  general,
application  of these rules  may require inclusion  of income on  a Stripped ARM
Obligation in  advance of  the  receipt of  cash  attributable to  such  income.
Further,  the addition of  interest deferred by  reason of negative amortization
('Deferred Interest') to the  principal balance of an  ARM Loan may require  the
inclusion of such amount in the income of the Certificateholder when such amount
accrues.  Furthermore, the  addition of  Deferred Interest  to the Certificate's
principal balance  will  result in  additional  income (including  possibly  OID
income) to the Certificateholder over the remaining life of such Certificates.
 
     Because  the treatment of Stripped  ARM Obligations is uncertain, investors
are urged to consult their tax advisors regarding how income will be  includible
with respect to such Certificates.
 
C. SALE OR EXCHANGE OF A CERTIFICATE
 
     Sale or exchange of a Certificate prior to its maturity will result in gain
or  loss equal to  the difference, if  any, between the  amount received and the
owner's adjusted basis in  the Certificate. Such  adjusted basis generally  will
equal  the seller's  purchase price  for the  Certificate, increased  by the OID
included in  the seller's  gross income  with respect  to the  Certificate,  and
reduced  by principal  payments on  the Certificate  previously received  by the
seller. Such gain or loss will be capital  gain or loss to an owner for which  a
Certificate is a 'capital asset'
 
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within  the meaning of  Code Section 1221,  and will be  long-term or short-term
depending on whether the  Certificate has been owned  for the long-term  capital
gain holding period (currently more than one year).
 
     The  Certificates will be 'evidences of indebtedness' within the meaning of
Code Section 582(c)(1),  so that  gain or  loss recognized  from the  sale of  a
Certificate by a bank or a thrift institution to which such section applies will
be ordinary income or loss.
 
D. NON-U.S. PERSONS
 
     Generally,  to  the  extent  that  a  Certificate  evidences  ownership  in
underlying Mortgage Loans that were issued on or before July 18, 1984,  interest
or  OID paid by the  person required to withhold tax  under Code Section 1441 or
1442 to (i) an  owner that is  not a U.S.  Person (as defined  below) or (ii)  a
Certificateholder  holding on behalf of an owner  that is not a U.S. Person will
be subject to federal income tax, collected by withholding, at a rate of 30%  or
such  lower rate as  may be provided  for interest by  an applicable tax treaty.
Accrued OID  recognized  by  the  owner  on the  sale  or  exchange  of  such  a
Certificate  also  will be  subject  to federal  income  tax at  the  same rate.
Generally, such payments would not be subject to withholding to the extent  that
a  Certificate evidences ownership in Mortgage Loans issued after July 18, 1984,
by  natural   persons   if   such  Certificateholder   complies   with   certain
identification  requirements (including delivery  of a statement,  signed by the
Certificateholder   under   penalties   of   perjury,   certifying   that   such
Certificateholder  is not a  U.S. Person and  providing the name  and address of
such Certificateholder). Additional restrictions  apply to Mortgage Loans  where
the mortgagor is not a natural person in order to qualify for the exemption from
withholding.
 
     As  used herein, a 'U.S. Person' means  a citizen or resident of the United
States, a corporation or  a partnership organized  in or under  the laws of  the
United  States or any political  subdivision thereof or an  estate or trust, the
income of which from  sources outside the United  States is includible in  gross
income  for federal  income tax purposes  regardless of its  connection with the
conduct of a trade or business within the United States.
 
E. INFORMATION REPORTING AND BACKUP WITHHOLDING
 
     The Master Servicer  will furnish  or make available,  within a  reasonable
time   after  the  end  of  each  calendar  year,  to  each  person  who  was  a
Certificateholder at  any time  during such  year, such  information as  may  be
deemed  necessary or desirable  to assist Certificateholders  in preparing their
federal income  tax returns,  or  to enable  holders  to make  such  information
available  to  beneficial  owners  or financial  intermediaries  that  hold such
Certificates as nominees on behalf of beneficial owners. If a holder, beneficial
owner, financial intermediary  or other recipient  of a payment  on behalf of  a
beneficial  owner fails to supply a  certified taxpayer identification number or
if the Secretary of  the Treasury determines that  such person has not  reported
all  interest and dividend income required to be shown on its federal income tax
return, 31% backup withholding may be required with respect to any payments. Any
amounts deducted  and withheld  from  a distribution  to  a recipient  would  be
allowed as a credit against such recipient's federal income tax liability.
 
REMIC CERTIFICATES
 
     The Trust Fund relating to a Series of Certificates may elect to be treated
as  a REMIC. Qualification  as a REMIC requires  ongoing compliance with certain
conditions. Although a  REMIC is  not generally  subject to  federal income  tax
(see,  however '  -- Residual  Certificates' and  ' --  Prohibited Transactions'
below), if a Trust Fund with respect to which a REMIC election is made fails  to
comply with one or more of the ongoing requirements of the Code for REMIC status
during  any taxable  year, including the  implementation of  restrictions on the
purchase and transfer of  the residual interests in  a REMIC as described  below
under  'Residual Certificates,' the Code provides that  a Trust Fund will not be
treated as a REMIC for such year and thereafter. In that event, such entity  may
be  taxable as a separate corporation,  and the related Certificates (the 'REMIC
Certificates') may  not  be accorded  the  status  or given  the  tax  treatment
described  below. While  the Code  authorizes the  Treasury Department  to issue
regulations providing relief in the event  of an inadvertent termination of  the
status  of a trust  fund as a REMIC,  no such regulations  have been issued. Any
such relief, moreover, may be accompanied  by sanctions, such as the  imposition
of  a corporate tax on all or a portion  of the REMIC's income for the period in
which the requirements for such status  are not satisfied. With respect to  each
Trust  Fund that elects REMIC status, Brown  & Wood LLP will deliver its opinion
generally to the effect that,
 
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under then  existing law  and assuming  compliance with  all provisions  of  the
related  Agreement, such  Trust Fund  will qualify as  a REMIC,  and the related
Certificates will be considered to be regular interests ('Regular Certificates')
or residual  interests  ('Residual  Certificates') in  the  REMIC.  The  related
Prospectus  Supplement for each Series of Certificates will indicate whether the
Trust Fund will make a REMIC election  and whether a class of Certificates  will
be treated as a regular or residual interest in the REMIC.
 
     In  general, with respect to each Series  of Certificates for which a REMIC
election is  made, (i)  Certificates held  by a  thrift institution  taxed as  a
'mutual savings bank' or 'domestic building and loan association' will represent
interests in 'qualifying real property loans' within the meaning of Code Section
593(d)(1);  (ii) Certificates held by a  thrift institution taxed as a 'domestic
building and loan association' will constitute assets described in Code  Section
7701(a)(19)(C);  (iii) Certificates held by a  real estate investment trust will
constitute 'real estate assets' within the meaning of Code Section 856(c)(5)(A);
and (iv) interest on Certificates held by a real estate investment trust will be
considered 'interest  on  obligations secured  by  mortgages on  real  property'
within the meaning of Code Section 856(c)(3)(B). If less than 95% of the REMIC's
assets  are  assets qualifying  under any  of the  foregoing Code  sections, the
Certificates will  be qualifying  assets only  to the  extent that  the  REMIC's
assets  are  qualifying assets.  In addition,  payments  on Mortgage  Loans held
pending distribution  on  the  REMIC  Certificates  will  be  considered  to  be
qualifying  real property loans for purposes  of Code Section 593(d)(1) and real
estate assets for purposes of Code Section 856(c).
 
     In some instances the Mortgage Loans may not be treated entirely as  assets
described  in the  foregoing sections.  See, in  this regard,  the discussion of
Buydown Loans  contained in  '  -- Non-REMIC  Certificates  -- Single  Class  of
Certificates'  above. REMIC Certificates held by  a real estate investment trust
will not constitute 'Government Securities'  within the meaning of Code  Section
856(c)(5)(A), and REMIC Certificates held by a regulated investment company will
not  constitute  'Government  Securities'  within the  meaning  of  Code Section
851(b)(4)(A)(ii). REMIC Certificates held by certain financial institutions will
constitute 'evidences  of  indebtedness'  within the  meaning  of  Code  Section
582(c)(1).
 
     A  'qualified  mortgage' for  REMIC purposes  is any  obligation (including
certificates of participation in such an obligation) that is principally secured
by an interest in real  property and that is transferred  to the REMIC within  a
prescribed  time period  in exchange  for regular  or residual  interests in the
REMIC. The REMIC Regulations provide  that manufactured housing or mobile  homes
(not  including  recreational vehicles,  campers or  similar vehicles)  that are
'single family residences'  under Code  Section 25(e)(10) will  qualify as  real
property  without  regard  to  state  law  classifications.  Under  Code Section
25(e)(10), a single family residence includes  any manufactured home that has  a
minimum  of 400 square feet of living space and a minimum width in excess of 102
inches and that is of a kind customarily used at a fixed location.
 
     Tiered REMIC Structures.  For certain Series of Certificates, two  separate
elections  may be made to treat designated portions of the related Trust Fund as
REMICs (respectively, the 'Subsidiary REMIC' and the 'Master REMIC') for federal
income tax purposes. Upon the issuance of any such Series of Certificates, Brown
& Wood LLP, counsel to the Depositor, will deliver its opinion generally to  the
effect  that, assuming compliance with all  provisions of the related Agreement,
the Master REMIC as well as any  Subsidiary REMIC will each qualify as a  REMIC,
and  the REMIC Certificates issued by the Master REMIC and the Subsidiary REMIC,
respectively, will be considered to  evidence ownership of Regular  Certificates
or  Residual Certificates in the  related REMIC within the  meaning of the REMIC
provisions.
 
     Only REMIC Certificates, other than the residual interest in the Subsidiary
REMIC, issued by  the Master  REMIC will  be offered  hereunder. The  Subsidiary
REMIC  and the Master REMIC will be treated  as one REMIC solely for purposes of
determining whether the REMIC Certificates will be (i) 'qualifying real property
loans' under Section 593(d)  of the Code; (ii)  'real estate assets' within  the
meaning of Section 856(c)(5)(A) of the Code; (iii) 'loans secured by an interest
in real property' under Section 7701(a)(19)(C) of the Code; and (iv) whether the
income on such Certificates is interest described in Section 856(c)(3)(B) of the
Code.
 
A. REGULAR CERTIFICATES
 
     General.     Except  as  otherwise   stated  in  this  discussion,  Regular
Certificates will be treated for federal income tax purposes as debt instruments
issued by the REMIC and not as  ownership interests in the REMIC or its  assets.
Moreover,  holders of Regular Certificates that  otherwise report income under a
cash method of  accounting will  be required to  report income  with respect  to
Regular Certificates under an accrual method.
 
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     Original  Issue  Discount and  Premium.   The  Regular Certificates  may be
issued with original issue discount ('OID').  Generally, such OID, if any,  will
equal  the difference  between the  'stated redemption  price at  maturity' of a
Regular Certificate and its 'issue price.' Holders of any class of  Certificates
issued with OID will be required to include such OID in gross income for federal
income tax purposes as it accrues, in accordance with a constant interest method
based  on the compounding  of interest as  it accrues rather  than in accordance
with receipt of the interest payments. The following discussion is based in part
on Treasury regulations  issued on January  27, 1994, under  Code Sections  1271
through  1273 and 1275 (the 'OID Regulations')  and in part on the provisions of
the Tax Reform Act of 1986 (the  '1986 Act'). The OID Regulations generally  are
effective  for debt  instruments issued  on or after  April 4,  1994. Holders of
Regular  Certificates  (the  'Regular  Certificateholders')  should  be   aware,
however,  that  the OID  Regulations do  not  adequately address  certain issues
relevant to prepayable securities, such as the Regular Certificates.
 
     Rules governing OID are  set forth in Code  Sections 1271 through 1273  and
1275.  These  rules  require that  the  amount and  rate  of accrual  of  OID be
calculated based on the Prepayment  Assumption and the anticipated  reinvestment
rate,  if any, relating to  the Regular Certificates and  prescribe a method for
adjusting the  amount and  rate of  accrual of  such discount  where the  actual
prepayment  rate differs  from the  Prepayment Assumption.  Under the  Code, the
Prepayment  Assumption  must   be  determined  in   the  manner  prescribed   by
regulations, which regulations have not yet been issued. The Legislative History
provides,  however, that Congress  intended the regulations  to require that the
Prepayment Assumption be the prepayment  assumption that is used in  determining
the  initial  offering  price  of  such  Regular  Certificates.  The  Prospectus
Supplement for each Series of  Regular Certificates will specify the  Prepayment
Assumption  to be  used for the  purpose of  determining the amount  and rate of
accrual of OID.  No representation is  made that the  Regular Certificates  will
prepay at the Prepayment Assumption or at any other rate.
 
     The  IRS recently  issued final regulations  (the 'Contingent Regulations')
governing the  calculation  of OID  on  instruments having  contingent  interest
payments.  The Contingent Regulations specifically do  not apply for purposes of
calculating OID on debt instruments subject to Code Section 1272(a)(6), such  as
the  Regular  Certificates. Additionally,  the  OID Regulations  do  not contain
provisions  specifically  interpreting  Code  Section  1272(a)(6).  The  Trustee
intends  to  base  its  computations  on Code  Section  1272(a)(6)  and  the OID
Regulations  as  described  herein.  However,  because  no  regulatory  guidance
currently  exists under Code Section 1272(a)(6),  there can be no assurance that
such methodology represents the correct manner of calculating OID.
 
     In  general,  each  Regular  Certificate  will  be  treated  as  a   single
installment  obligation issued with an amount of  OID equal to the excess of its
'stated redemption price at maturity' over its 'issue price.' The issue price of
a Regular  Certificate is  the first  price  at which  a substantial  amount  of
Regular  Certificates of that class are first sold to the public (excluding bond
houses, brokers,  underwriters or  wholesalers). The  issue price  of a  Regular
Certificate  also includes the  amount paid by  an initial Certificateholder for
accrued interest that relates to a period prior to the issue date of the Regular
Certificate. The stated redemption  price at maturity  of a Regular  Certificate
includes the original principal amount of the Regular Certificate, but generally
will  not  include distributions  of interest  if such  distributions constitute
'qualified stated interest.' Qualified stated interest generally means  interest
payable  at a single fixed rate or  qualified variable rate (as described below)
provided that such interest payments are unconditionally payable at intervals of
one year or less during the entire term of the Regular Certificate. Interest  is
payable at a single fixed rate only if the rate appropriately takes into account
the  length  of  the interval  between  payments. Distributions  of  interest on
Regular Certificates with respect  to which Deferred  Interest will accrue  will
not  constitute qualified  stated interest  payments, and  the stated redemption
price at maturity  of such  Regular Certificates includes  all distributions  of
interest as well as principal thereon.
 
     Where  the interval between the issue  date and the first Distribution Date
on a  Regular  Certificate  is  longer  than  the  interval  between  subsequent
Distribution  Dates, the greater of any original issue discount disregarding the
rate in the first period  and any interest foregone  during the first period  is
treated  as the amount by  which the stated redemption  price of the Certificate
exceeds its issue price for purposes of the de minimis rule described below. The
OID Regulations suggest that all  or a portion of the  interest on a long  first
period  Regular  Certificate that  is  issued with  non-de  minimis OID  will be
treated as  OID.  Where  the interval  between  the  issue date  and  the  first
Distribution  Date on a Regular Certificate is shorter than the interval between
subsequent Distribution Dates, interest  due on the  first Distribution Date  in
excess  of the amount that accrued during the first period would be added to the
Certificates stated  redemption price  at maturity.  Regular  Certificateholders
should  consult their own tax  advisors to determine the  issue price and stated
redemption price at maturity of a Regular
 
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Certificate. Additionally, it  is possible that  the IRS could  assert that  the
stated  Pass-Through  Rate  of  interest  on  the  Regular  Certificates  is not
unconditionally payable because  late payments  or nonpayments  on the  Mortgage
Loans  are not penalized  nor are there  reasonable remedies in  place to compel
payment on such Mortgage Loans. Such position, if successful, would require  all
holders  of Regular Certificates to accrue income on such certificates under the
OID Regulations.
 
     Under the de minimis rule, OID on a Regular Certificate will be  considered
to  be zero if  such OID is  less than 0.25%  of the stated  redemption price at
maturity of the Regular Certificate multiplied by the weighted average  maturity
of  the Regular Certificate. For this  purpose, the weighted average maturity of
the Regular Certificate  is computed  as the sum  of the  amounts determined  by
multiplying  the number of  full years (i.e., rounding  down partial years) from
the issue date until each distribution  in reduction of stated redemption  price
at maturity is scheduled to be made by a fraction, the numerator of which is the
amount  of each distribution included in the stated redemption price at maturity
of the Regular Certificate and the denominator of which is the stated redemption
price at maturity  of the  Regular Certificate. Although  currently unclear,  it
appears  that  the  schedule  of  such  distributions  should  be  determined in
accordance with  the  Prepayment  Assumption.  The  Prepayment  Assumption  with
respect  to a Series  of Regular Certificates  will be set  forth in the related
Prospectus Supplement. Holders generally must report de minimis OID pro rata  as
principal  payments are received,  and such income  will be capital  gain if the
Regular Certificate is held as a capital asset. However, accrual method  holders
may  elect to  accrue all  de minimis  OID as  well as  market discount  under a
constant interest method.
 
     The Prospectus Supplement  with respect  to a  Trust Fund  may provide  for
certain  Regular  Certificates to  be issued  at prices  significantly exceeding
their  principal  amounts   or  based  on   notional  principal  balances   (the
'Super-Premium   Certificates').  The  income  tax  treatment  of  such  Regular
Certificates is not  entirely certain. For  information reporting purposes,  the
Trust  Fund intends  to take  the position that  the stated  redemption price at
maturity of such Regular Certificates is the  sum of all payments to be made  on
such  Regular Certificates determined under  the Prepayment Assumption, with the
result that such Regular Certificates would be issued with OID. The  calculation
of income in this manner could result in negative original issue discount (which
delays  future accruals  of OID rather  than being  immediately deductible) when
prepayments on the Mortgage  Loans exceed those  estimated under the  Prepayment
Assumption.  As discussed above, the  Contingent Regulations specifically do not
apply to prepayable debt instruments subject to Code Section 1272(a)(6), such as
the Regular  Certificates.  However,  if  the  Super-Premium  Certificates  were
treated  as contingent payment  obligations, it is unclear  how holders of those
Certificates would report income or recover their basis. In the alternative, the
IRS could assert that  the stated redemption price  at maturity of such  Regular
Certificates  should  be  limited  to their  principal  amount  (subject  to the
discussion below  under  ' --  Accrued  Interest Certificates'),  so  that  such
Regular  Certificates would be considered for  federal income tax purposes to be
issued at a premium.  If such a  position were to  prevail, the rules  described
below  under ' --  Regular Certificates --  Premium' would apply.  It is unclear
when a  loss  may be  claimed  for any  unrecovered  basis for  a  Super-Premium
Certificate.  It is  possible that a  holder of a  Super-Premium Certificate may
only claim a loss when its remaining basis exceeds the maximum amount of  future
payments,  assuming no further prepayments or when the final payment is received
with respect to  such Super-Premium  Certificate. Absent  further guidance,  the
Trustee intends to treat the Super-Premium Certificates as described herein.
 
     Under  the REMIC Regulations,  if the issue price  of a Regular Certificate
(other than those based on a notional amount) does not exceed 125% of its actual
principal amount, the interest rate  is not considered disproportionately  high.
Accordingly,  such  Regular Certificate  generally should  not  be treated  as a
Super-Premium Certificate  and the  rules  described below  under '  --  Regular
Certificates -- Premium' should apply. However, it is possible that certificates
issued  at a premium, even if the premium is less than 25% of such Certificate's
actual principal balance,  will be  required to  amortize the  premium under  an
original  issue discount  method or  contingent interest  method even  though no
election under Code section 171 is made to amortize such premium.
 
     Generally, a Regular  Certificateholder must  include in  gross income  the
'daily  portions,' as  determined below,  of the OID  that accrues  on a Regular
Certificate for  each day  a Certificateholder  holds the  Regular  Certificate,
including  the  purchase  date but  excluding  the disposition  date.  The daily
portions of OID are determined  by allocating to each  day in an accrual  period
the  ratable portion of OID allocable to the accrual period. Accrual periods may
be of  any  length  and  may  vary  in length  over  the  term  of  the  Regular
Certificates, provided that each accrual period (i) is not longer than one year,
(ii) begins or ends on a Distribution Date
 
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(except  for the first accrual period which  begins on the issue date) and (iii)
begins on the day after the preceding accrual period ends. This will be done, in
the case of each full accrual period, by (i) adding (a) the present value at the
end of the accrual period (determined by using as a discount factor the original
yield to maturity of the Regular Certificates as calculated under the Prepayment
Assumption) of all remaining payments to be received on the Regular Certificates
under the Prepayment  Assumption and  (b) any  payments included  in the  stated
redemption  price  at maturity  received during  such  accrual period,  and (ii)
subtracting from that total the adjusted issue price of the Regular Certificates
at the beginning of such accrual period.  The adjusted issue price of a  Regular
Certificate at the beginning of the first accrual period is its issue price; the
adjusted  issue price of a Regular Certificate  at the beginning of a subsequent
accrual period is the adjusted issue  price at the beginning of the  immediately
preceding accrual period plus the amount of OID allocable to that accrual period
and  reduced by  the amount  of any  payment other  than a  payment of qualified
stated interest  made at  the end  of or  during that  accrual period.  The  OID
accrued  during an accrual period will then be  divided by the number of days in
the period to determine  the daily portion  of OID for each  day in the  accrual
period.  The calculation of OID under the  method described above will cause the
accrual of OID to either increase or decrease (but never below zero) in a  given
accrual  period to  reflect the  fact that  prepayments are  occurring faster or
slower than under the Prepayment Assumption. With respect to an initial  accrual
period  shorter than  a full accrual  period, the  daily portions of  OID may be
determined according to an appropriate allocation under any reasonable method.
 
     A subsequent  purchaser  of  a  Regular Certificate  issued  with  OID  who
purchases  the  Regular Certificate  at a  cost less  than the  remaining stated
redemption price at maturity  will also be required  to include in gross  income
the  sum of the daily portions of  OID on that Regular Certificate. In computing
the daily portions of OID for such a purchaser (as well as an initial  purchaser
that purchases at a price higher than the adjusted issue price but less than the
stated  redemption price at maturity), however,  the daily portion is reduced by
the amount that would be the daily portion for such day (computed in  accordance
with the rules set forth above) multiplied by a fraction, the numerator of which
is  the amount, if any, by which the  price paid by such holder for that Regular
Certificate exceeds the following  amount: (a) the sum  of the issue price  plus
the  aggregate amount of OID that would have been includible in the gross income
of an original Regular Certificateholder (who purchased the Regular  Certificate
at  its  issue  price), less  (b)  any  prior payments  included  in  the stated
redemption price at maturity,  and the denominator  of which is  the sum of  the
daily  portions for that Regular Certificate for  all days beginning on the date
after the  purchase date  and ending  on the  maturity date  computed under  the
Prepayment  Assumption. A  holder who  pays an  acquisition premium  instead may
elect to accrue OID by treating the purchase as a purchase at original issue.
 
     Variable Rate Regular Certificates.   Regular Certificates may provide  for
interest  based on a variable rate. Interest is treated as payable at a variable
rate and not as contingent interest if, generally, (i) the issue price does  not
exceed  the original principal balance by more  than a specified amount and (ii)
the interest compounds  or is  payable at least  annually at  current values  of
certain  objective rates matured by or based on lending rates for newly borrowed
funds. For a debt instrument issued after August 13, 1996, an objective rate  is
a  rate (other than a qualified floating rate) that is determined using a single
fixed formula and that is based on objective financial or economic  information.
The  variable interest generally will be qualified stated interest to the extent
it is unconditionally payable  at least annually and,  to the extent  successive
variable rates are used, interest is not significantly accelerated or deferred.
 
     The  amount of OID with respect to a Regular Certificate bearing a variable
rate of interest will accrue in the  manner described above under ' --  Original
Issue  Discount and Premium' by  assuming generally that the  index used for the
variable rate  will  remain  fixed  throughout  the  term  of  the  Certificate.
Appropriate adjustments are made for the actual variable rate.
 
     Although  unclear  at  present,  the  Depositor  intends  to  treat Regular
Certificates bearing an  interest rate  that is a  weighted average  of the  net
interest  rates on Mortgage  Loans as variable rate  certificates. In such case,
the weighted average rate used to  compute the initial pass-through rate on  the
Regular  Certificates will be deemed to be  the index in effect through the life
of the Regular  Certificates. It is  possible, however, that  the IRS may  treat
some or all of the interest on Regular Certificates with a weighted average rate
as  taxable under  the rules  relating to  obligations providing  for contingent
payments. Such  treatment may  effect  the timing  of  income accruals  on  such
Regular  Certificates. Additionally,  if some or  all of the  Mortgage Loans are
subject to 'teaser  rates' (i.e., the  initial rates on  the Mortgage Loans  are
less  than subsequent rates on the Mortgage  Loans) the interest paid on some or
all of the Regular Certificates may be subject to accrual using a constant yield
method
 
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notwithstanding the fact that  such Certificates may not  have been issued  with
'true' non-de minimis original issue discount.
 
     Election  to  Treat  All Interest  as  OID.  The OID  Regulations  permit a
Certificateholder to  elect  to  accrue all  interest,  discount  (including  de
minimus  market or original  issue discount) and premium  in income as interest,
based on a constant yield method for Certificates acquired on or after April  4,
1994.  If such an election were to be made with respect to a Regular Certificate
with market discount,  the Certificateholder  would be  deemed to  have made  an
election  to include  in income  currently market  discount with  respect to all
other debt  instruments  having  market  discount  that  such  Certificateholder
acquires   during  the  year  of  the   election  or  thereafter.  Similarly,  a
Certificateholder that makes this election for a Certificate that is acquired at
a premium will be deemed to have made an election to amortize bond premium  with
respect  to  all  debt instruments  having  amortizable bond  premium  that such
Certificateholder owns or acquires.  See ' --  Regular Certificates --  Premium'
herein.  The election  to accrue  interest, discount  and premium  on a constant
yield method with respect to a Certificate cannot be revoked without the consent
of the IRS.
 
     Market Discount.  A purchaser of a Regular Certificate may also be  subject
to  the market  discount provisions  of Code  Sections 1276  through 1278. Under
these provisions and the OID  Regulations, 'market discount' equals the  excess,
if any, of (i) the Regular Certificate's stated principal amount or, in the case
of a Regular Certificate with OID, the adjusted issue price (determined for this
purpose  as  if the  purchaser had  purchased such  Regular Certificate  from an
original holder) over (ii)  the price for such  Regular Certificate paid by  the
purchaser.  A Certificateholder that purchases a Regular Certificate at a market
discount will recognize  income upon receipt  of each distribution  representing
stated  redemption price. In particular,  under Section 1276 of  the Code such a
holder generally will be required  to allocate each such principal  distribution
first  to  accrued market  discount not  previously included  in income,  and to
recognize ordinary  income to  that  extent. A  Certificateholder may  elect  to
include  market discount in income currently as it accrues rather than including
it on a deferred basis in accordance with the foregoing. If made, such  election
will apply to all market discount bonds acquired by such Certificateholder on or
after the first day of the first taxable year to which such election applies.
 
     Market discount with respect to a Regular Certificate will be considered to
be zero if the amount allocable to the Regular Certificate is less than 0.25% of
such  Regular Certificate's  stated redemption  price at  maturity multiplied by
such Regular Certificate's weighted average maturity remaining after the date of
purchase. If market discount on a  Regular Certificate is considered to be  zero
under  this rule, the actual amount of  market discount must be allocated to the
remaining principal payments on the Regular Certificate, and gain equal to  such
allocated  amount will be recognized when the corresponding principal payment is
made. Treasury regulations implementing the  market discount rules have not  yet
been  issued;  therefore,  investors  should  consult  their  own  tax  advisors
regarding the application of these rules  and the advisability of making any  of
the elections allowed under Code Sections 1276 through 1278.
 
     The  Code provides that any principal  payment (whether a scheduled payment
or a prepayment) or any gain on  disposition of a market discount bond  acquired
by  the taxpayer after October 22, 1986,  shall be treated as ordinary income to
the extent that it does  not exceed the accrued market  discount at the time  of
such  payment. The amount of accrued market discount for purposes of determining
the tax treatment of subsequent principal payments or dispositions of the market
discount bond is to be reduced by the amount so treated as ordinary income.
 
     The Code  also  grants  authority  to  the  Treasury  Department  to  issue
regulations  providing for  the computation of  accrued market  discount on debt
instruments, the principal  of which is  payable in more  than one  installment.
Until  such time as regulations  are issued by the  Treasury, rules described in
the Legislative History will  apply. Under those rules,  the holder of a  market
discount  bond may  elect to  accrue market  discount either  on the  basis of a
constant interest rate or according to one of the following methods. For Regular
Certificates issued with OID, the amount of market discount that accrues  during
a  period is equal to the product of (i) the total remaining market discount and
(ii) a fraction, the numerator  of which is the  OID accruing during the  period
and  the denominator of which is the total remaining OID at the beginning of the
period. For  Regular  Certificates issued  without  OID, the  amount  of  market
discount  that accrues during a period is equal  to the product of (a) the total
remaining market discount  and (b)  a fraction, the  numerator of  which is  the
amount  of stated interest paid during the accrual period and the denominator of
which is  the total  amount  of stated  interest remaining  to  be paid  at  the
beginning  of the period. For purposes  of calculating market discount under any
of
 
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the above methods in the case of instruments (such as the Regular  Certificates)
that  provide for payments that  may be accelerated by  reason of prepayments of
other obligations  securing such  instruments,  the same  Prepayment  Assumption
applicable to calculating the accrual of OID will apply.
 
     A holder of a Regular Certificate that acquires such Regular Certificate at
a market discount also may be required to defer, until the maturity date of such
Regular  Certificate or  its earlier disposition  in a  taxable transaction, the
deduction of a portion of the amount of interest that the holder paid or accrued
during the taxable year  on indebtedness incurred or  maintained to purchase  or
carry  the Regular  Certificate in  excess of  the aggregate  amount of interest
(including OID) includible in  such holder's gross income  for the taxable  year
with  respect  to such  Regular  Certificate. The  amount  of such  net interest
expense deferred in a taxable year may not exceed the amount of market  discount
accrued on the Regular Certificate for the days during the taxable year on which
the  holder held  the Regular Certificate  and, in general,  would be deductible
when such market discount is includible  in income. The amount of any  remaining
deferred  deduction is to be taken into account in the taxable year in which the
Regular Certificate matures or is disposed  of in a taxable transaction. In  the
case  of a disposition  in which gain or  loss is not recognized  in whole or in
part, any remaining  deferred deduction will  be allowed to  the extent of  gain
recognized  on the disposition. This deferral rule does not apply if the Regular
Certificateholder elects to include such market discount in income currently  as
it  accrues  on  all  market  discount  obligations  acquired  by  such  Regular
Certificateholder in that taxable year or thereafter.
 
     Premium.  A purchaser of a  Regular Certificate that purchases the  Regular
Certificate  at a cost (not including accrued qualified stated interest) greater
than its remaining  stated redemption price  at maturity will  be considered  to
have  purchased the Regular Certificate  at a premium and  may elect to amortize
such premium  under  a  constant yield  method.  It  is not  clear  whether  the
Prepayment Assumption would be taken into account in determining the life of the
Regular  Certificate for this purpose.  The Amortizable Bond Premium Regulations
described above specifically do not apply to prepayable debt instruments subject
to Code  Section 1272(a)(6)  such as  the Regular  Certificates. Absent  further
guidance  from  the IRS,  the Trustee  intends to  account for  amortizable bond
premium in the manner described herein. However, the Legislative History  states
that  the  same rules  that apply  to  accrual of  market discount  (which rules
require use of a Prepayment Assumption in accruing market discount with  respect
to  Regular Certificates without  regard to whether  such Certificates have OID)
will also apply  in amortizing  bond premium under  Code Section  171. The  Code
provides  that amortizable  bond premium  will be  allocated among  the interest
payments on such Regular Certificates and  will be applied as an offset  against
such interest payment. Prospective purchasers of the Regular Certificates should
consult their tax advisors regarding the possible application of the Amortizable
Bond Premium Regulations.
 
     Deferred  Interest.  Certain  classes of Regular  Certificates will provide
for the accrual of Deferred Interest with respect to one or more ARM Loans.  Any
Deferred  Interest that accrues with respect  to a class of Regular Certificates
will constitute income  to the holders  of such Certificates  prior to the  time
distributions  of cash with  respect to such  Deferred Interest are  made. It is
unclear, under  the  OID  Regulations,  whether any  of  the  interest  on  such
Certificates  will  constitute qualified  stated interest  or  whether all  or a
portion of the  interest payable on  such Certificates must  be included in  the
stated redemption price at maturity of the Certificates and accounted for as OID
(which  could accelerate such inclusion).  Interest on Regular Certificates must
in any event be  accounted for under  an accrual method by  the holders of  such
Certificates  and, therefore, applying the latter  analysis may result only in a
slight difference in the timing of the  inclusion in income of interest on  such
Regular Certificates.
 
     Effects  of Defaults and Delinquencies.  Certain Series of Certificates may
contain one or more classes of Subordinated Certificates, and in the event there
are defaults  or  delinquencies  on  the  Mortgage  Loans,  amounts  that  would
otherwise  be  distributed  on  the  Subordinated  Certificates  may  instead be
distributed on  the Certificates.  Subordinated Certificateholders  nevertheless
will  be required to  report income with  respect to such  Certificates under an
accrual method without giving effect  to delays and reductions in  distributions
on  such Subordinated Certificates attributable to defaults and delinquencies on
the Mortgage Loans, except to  the extent that it  can be established that  such
amounts  are uncollectible.  As a  result, the  amount of  income reported  by a
Subordinated Certificateholder  in any  period  could significantly  exceed  the
amount  of  cash distributed  to such  holder  in that  period. The  holder will
eventually be allowed a loss  (or will be allowed to  report a lesser amount  of
income)  to  the  extent  that  the aggregate  amount  of  distributions  on the
Subordinated Certificate is reduced as a result of defaults and delinquencies on
the Mortgage Loans. However, the timing  and characterization of such losses  or
reductions   in   income   are   uncertain,   and,   accordingly,   Subordinated
Certificateholders should consult their own tax advisors on this point.
 
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<PAGE>
     Sale, Exchange or Redemption. If a Regular Certificate is sold,  exchanged,
redeemed  or  retired, the  seller  will recognize  gain  or loss  equal  to the
difference between the  amount realized  on the sale,  exchange, redemption,  or
retirement  and the  seller's adjusted  basis in  the Regular  Certificate. Such
adjusted basis generally will equal the  cost of the Regular Certificate to  the
seller,  increased by any OID and market discount included in the seller's gross
income with respect to the Regular Certificate, and reduced (but not below zero)
by payments  included in  the  stated redemption  price at  maturity  previously
received  by the seller  and by any  amortized premium. Similarly,  a holder who
receives a payment that is part of the stated redemption price at maturity of  a
Regular  Certificate will  recognize gain  equal to the  excess, if  any, of the
amount  of  the  payment  over  the  holder's  adjusted  basis  in  the  Regular
Certificate.  A Regular Certificateholder  who receives a  final payment that is
less than the holder's adjusted basis in the Regular Certificate will  generally
recognize  a loss. Except as provided in the following paragraph and as provided
under 'Market Discount' above,  any such gain  or loss will  be capital gain  or
loss,  provided  that  the Regular  Certificate  is  held as  a  'capital asset'
(generally, property held  for investment)  within the meaning  of Code  Section
1221.
 
     Gain from the sale or other disposition of a Regular Certificate that might
otherwise  be capital gain will be treated as ordinary income to the extent that
such gain does not exceed the excess, if any, of (i) the amount that would  have
been  includible in such holder's income with respect to the Regular Certificate
had income accrued thereon at a rate equal to 110% of the AFR as defined in Code
Section  1274(d)  determined  as  of  the  date  of  purchase  of  such  Regular
Certificate, over (ii) the amount actually includible in such holder's income.
 
     The  Regular Certificates  will be  'evidences of  indebtedness' within the
meaning of Code Section 582(c)(1), so that gain or loss recognized from the sale
of a Regular Certificate by a bank or a thrift institution to which such section
applies will be ordinary income or loss.
 
     The Regular Certificate information reports will include a statement of the
adjusted issue price of the Regular Certificate at the beginning of each accrual
period. In addition, the reports  will include information necessary to  compute
the  accrual of  any market  discount that may  arise upon  secondary trading of
Regular Certificates.  Because  exact  computation  of  the  accrual  of  market
discount  on a constant  yield method would require  information relating to the
holder's purchase  price which  the REMIC  may  not have,  it appears  that  the
information  reports will only require information pertaining to the appropriate
proportionate method of accruing market discount.
 
     Accrued  Interest  Certificates.    Certain  of  the  Regular  Certificates
('Payment  Lag Certificates')  may provide for  payments of interest  based on a
period that corresponds to the interval between Distribution Dates but that ends
prior to each such  Distribution Date. The period  between the Closing Date  for
Payment Lag Certificates and their first Distribution Date may or may not exceed
such  interval.  Purchasers of  Payment Lag  Certificates  for which  the period
between the Closing Date  and the first Distribution  Date does not exceed  such
interval could pay upon purchase of the Regular Certificates accrued interest in
excess  of the accrued interest  that would be paid if  the interest paid on the
Distribution Date were interest accrued  from Distribution Date to  Distribution
Date.  If a portion  of the initial  purchase price of  a Regular Certificate is
allocable to interest that  has accrued prior to  the issue date  ('pre-issuance
accrued  interest') and the Regular Certificate provides for a payment of stated
interest on the first  payment date (and  the first payment  date is within  one
year  of the issue date)  that equals or exceeds  the amount of the pre-issuance
accrued interest, then the Regular Certificates' issue price may be computed  by
subtracting  from the issue  price the amount  of pre-issuance accrued interest,
rather than as  an amount  payable on the  Regular Certificate.  However, it  is
unclear  under this method how the OID Regulations treat interest on Payment Lag
Certificates. Therefore, in  the case of  a Payment Lag  Certificate, the  Trust
Fund  intends to include accrued interest in the issue price and report interest
payments made on  the first  Distribution Date as  interest to  the extent  such
payments  represent interest for  the number of  days that the Certificateholder
has held such Payment Lag Certificate during the first accrual period.
 
     Investors should consult  their own tax  advisors concerning the  treatment
for federal income tax purposes of Payment Lag Certificates.
 
     Non-Interest   Expenses  of  the  REMIC.    Under  the  temporary  Treasury
regulations, if the REMIC is considered to be a 'single-class REMIC,' a  portion
of the REMIC's servicing, administrative and other non-interest expenses will be
allocated  as  a  separate item  to  those Regular  Certificateholders  that are
'pass-through  interest  holders.'  Certificateholders  that  are   pass-through
interest holders should consult their own tax advisors about the impact of these
rules  on  an  investment  in the  Regular  Certificates.  See  'Pass-Through of
Non-Interest Expenses of the REMIC' under 'Residual Certificates' below.
 
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<PAGE>
     Treatment of Realized Losses. Although not entirely clear, it appears  that
holders  of  Regular Certificates  that are  corporations  should in  general be
allowed to deduct as an ordinary loss any loss sustained during the taxable year
on account of any such Certificates becoming wholly or partially worthless,  and
that,  in general, holders  of Certificates that are  not corporations should be
allowed to deduct  as a short-term  capital loss any  loss sustained during  the
taxable  year on  account of  any such  Certificates becoming  wholly worthless.
Although the matter  is unclear,  non-corporate holders of  Certificates may  be
allowed a bad debt deduction at such time that the principal balance of any such
Certificate  is reduced to reflect realized losses resulting from any liquidated
Mortgage Loans. The Internal Revenue  Service, however, could take the  position
that  non-corporate  holders will  be allowed  a bad  debt deduction  to reflect
realized losses only  after all Mortgage  Loans remaining in  the related  Trust
Fund  have been liquidated or  the Certificates of the  related Series have been
otherwise retired. Potential investors and Holders of the Certificates are urged
to consult their own tax advisors  regarding the appropriate timing, amount  and
character of any loss sustained with respect to such Certificates, including any
loss  resulting  from  the failure  to  recover previously  accrued  interest or
discount  income.  Special  loss  rules  are  applicable  to  banks  and  thrift
institutions,  including rules regarding reserves  for bad debts. Such taxpayers
are advised to consult their tax  advisors regarding the treatment of losses  on
Certificates.
 
     Non-U.S.  Persons.  Generally, payments  of interest (including any payment
with  respect  to  accrued  OID)  on  the  Regular  Certificates  to  a  Regular
Certificateholder  who is  not a U.S.  Person and is  not engaged in  a trade or
business within the United States will not be subject to federal withholding tax
if  such  Regular   Certificateholder  complies   with  certain   identification
requirements   (including  delivery  of  a  statement,  signed  by  the  Regular
Certificateholder under  penalties  of  perjury, certifying  that  such  Regular
Certificateholder is a foreign person and providing the name and address of such
Regular  Certificateholder). If a  Regular Certificateholder is  not exempt from
withholding, distributions of  interest, including distributions  in respect  of
accrued  OID, such holder  may be subject  to a 30%  withholding tax, subject to
reduction under any applicable tax treaty.
 
     Further, it appears that a Regular Certificate would not be included in the
estate of a  non-resident alien individual  and would not  be subject to  United
States  estate  taxes. However,  Certificateholders  who are  non-resident alien
individuals should consult their tax advisors concerning this question.
 
     Regular Certificateholders who are not U.S. Persons and persons related  to
such  holders  should  not acquire  any  Residual Certificates,  and  holders of
Residual Certificates (the 'Residual Certificateholder') and persons related  to
Residual  Certificateholders should not acquire any Regular Certificates without
consulting their tax  advisors as to  the possible adverse  tax consequences  of
doing so.
 
     Information  Reporting and  Backup Withholding.   The  Master Servicer will
furnish or  make available,  within a  reasonable  time after  the end  of  each
calendar  year, to each person  who was a Regular  Certificateholder at any time
during such year, such  information as may be  deemed necessary or desirable  to
assist Regular Certificateholders in preparing their federal income tax returns,
or  to enable holders to make such information available to beneficial owners or
financial intermediaries  that  hold  such Regular  Certificates  on  behalf  of
beneficial  owners.  If a  holder, beneficial  owner, financial  intermediary or
other recipient of a payment on behalf  of a beneficial owner fails to supply  a
certified  taxpayer identification  number or if  the Secretary  of the Treasury
determines that such person  has not reported all  interest and dividend  income
required  to be shown on  its federal income tax  return, 31% backup withholding
may be required with respect to any payments. Any amounts deducted and  withheld
from  a distribution to  a recipient would  be allowed as  a credit against such
recipient's federal income tax liability.
 
B. RESIDUAL CERTIFICATES
 
     Allocation of the Income  of the REMIC to  the Residual Certificates.   The
REMIC  will not be subject  to federal income tax  except with respect to income
from prohibited transactions and certain other transactions. See ' -- Prohibited
Transactions and Other Taxes' below. Instead, each original holder of a Residual
Certificate will report on  its federal income tax  return, as ordinary  income,
its  share of the  taxable income of the  REMIC for each  day during the taxable
year on which such holder owns any Residual Certificates. The taxable income  of
the  REMIC for each day  will be determined by  allocating the taxable income of
the REMIC for each calendar quarter ratably  to each day in the quarter. Such  a
holder's  share of the taxable income of the REMIC for each day will be based on
the portion of the  outstanding Residual Certificates that  such holder owns  on
that  day. The taxable income  of the REMIC will  be determined under an accrual
method and will be taxable to the holders of
 
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Residual  Certificates  without  regard  to  the  timing  or  amounts  of   cash
distributions  by the REMIC. Ordinary  income derived from Residual Certificates
will be 'portfolio income' for purposes of the taxation of taxpayers subject  to
the limitations on the deductibility of 'passive losses.' As residual interests,
the  Residual Certificates will  be subject to tax  rules, described below, that
differ from those that would apply if the Residual Certificates were treated for
federal income tax purposes as direct ownership interests in the Certificates or
as debt instruments issued by the REMIC.
 
     A Residual Certificateholder may be required to include taxable income from
the Residual  Certificate in  excess of  the cash  distributed. For  example,  a
structure  where principal distributions are  made serially on regular interests
(that is, a  fast-pay, slow-pay structure)  may generate such  a mismatching  of
income  and cash distributions (that is, 'phantom income'). This mismatching may
be caused by the use  of certain required tax  accounting methods by the  REMIC,
variations  in the prepayment rate of  the underlying Mortgage Loans and certain
other factors. Depending  upon the  structure of a  particular transaction,  the
aforementioned  factors  may  significantly  reduce  the  after-tax  yield  of a
Residual Certificate to a  Residual Certificateholder. Investors should  consult
their own tax advisors concerning the federal income tax treatment of a Residual
Certificate  and the impact  of such tax  treatment on the  after-tax yield of a
Residual Certificate.
 
     A subsequent Residual  Certificateholder also  will report  on its  federal
income  tax return amounts representing  a daily share of  the taxable income of
the REMIC for each day that  such Residual Certificateholder owns such  Residual
Certificate.  Those daily amounts  generally would equal  the amounts that would
have been reported for the same days by an original Residual  Certificateholder,
as  described above. The Legislative  History indicates that certain adjustments
may be appropriate to reduce (or increase) the income of a subsequent holder  of
a  Residual  Certificate that  purchased such  Residual  Certificate at  a price
greater than (or less than) the  adjusted basis such Residual Certificate  would
have  in the hands of  an original Residual Certificateholder.  See ' -- Sale or
Exchange of Residual Certificates' below. It is not clear, however, whether such
adjustments will in fact be permitted or required and, if so, how they would  be
made. The REMIC Regulations do not provide for any such adjustments.
 
     Taxable  Income  of  the REMIC  Attributable  to Residual  Interests.   The
taxable income of the REMIC  will reflect a netting of  (i) the income from  the
Mortgage  Loans and the REMIC's other assets  and (ii) the deductions allowed to
the REMIC  for interest  and OID  on  the Regular  Certificates and,  except  as
described  above under ' -- Regular Certificates -- Non-Interest Expenses of the
REMIC,' other expenses. REMIC taxable income is generally determined in the same
manner as  the taxable  income of  an  individual using  the accrual  method  of
accounting,  except  that (i)  the  limitations on  deductibility  of investment
interest expense and expenses  for the production of  income do not apply,  (ii)
all bad loans will be deductible as business bad debts, and (iii) the limitation
on  the deductibility of  interest and expenses related  to tax-exempt income is
more restrictive  than with  respect  to individual.  The REMIC's  gross  income
includes  interest, original issue discount  income, and market discount income,
if any,  on  the  Mortgage Loans,  as  well  as, income  earned  from  temporary
investments on reverse assets, reduced by the amortization of any premium on the
Mortgage  Loans.  In  addition,  a  Residual  Certificateholder  will  recognize
additional income  due to  the  allocation of  realized  losses to  the  Regular
Certificates  due to defaults, delinquencies and realized losses on the Mortgage
Loans. The timing of the inclusion of such income by Residual Certificateholders
may  differ  from  the  time  the  actual  loss  is  allocated  to  the  Regular
Certificates.  The  REMIC's  deductions  include  interest  and  original  issue
discount expense on  the Regular  Certificates, servicing fees  on the  Mortgage
Loans,  other administrative  expenses of the  REMIC and realized  losses on the
Mortgage Loans. The  requirement that Residual  Certificateholders report  their
pro  rata share of taxable  income or net loss of  the REMIC will continue until
there are no Certificates of any class of the related Series outstanding.
 
     For purposes of  determining its  taxable income,  the REMIC  will have  an
initial  aggregate tax basis in its assets equal  to the sum of the issue prices
of the Regular  Certificates and the  Residual Certificates (or,  if a class  of
Certificates is not sold initially, its fair market value). Such aggregate basis
will  be allocated  among the Mortgage  Loans and  other assets of  the REMIC in
proportion to their respective fair market value. A Mortgage Loan will be deemed
to have been acquired with  discount or premium to  the extent that the  REMIC's
basis  therein is less than or greater than its principal balance, respectively.
Any such discount  (whether market discount  or OID) will  be includible in  the
income  of  the  REMIC  as  it  accrues,  in  advance  of  receipt  of  the cash
attributable to such  income, under  a method  similar to  the method  described
above  for accruing OID on the Regular  Certificates. The REMIC expects to elect
under Code Section 171 to amortize any premium on the Mortgage Loans. Premium on
any Mortgage Loan  to which  such election applies  would be  amortized under  a
 
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constant  yield method.  It is not  clear whether  the yield of  a Mortgage Loan
would be  calculated for  this purpose  based on  scheduled payments  or  taking
account  of the Prepayment Assumption. Additionally,  such an election would not
apply to the yield with respect to any underlying mortgage loan originated on or
before September 27, 1985. Instead, premium with respect to such a mortgage loan
would be allocated among the principal payments thereon and would be  deductible
by the REMIC as those payments become due.
 
     The  REMIC will be allowed a deduction  for interest and OID on the Regular
Certificates. The amount  and method of  accrual of OID  will be calculated  for
this  purpose in  the same  manner as  described above  with respect  to Regular
Certificates except that the 0.25% per annum de minimis rule and adjustments for
subsequent holders described therein will not apply.
 
     A Residual Certificateholder will not be permitted to amortize the cost  of
the  Residual  Certificate as  an offset  to  its share  of the  REMIC's taxable
income. However, that taxable income will not include cash received by the REMIC
that represents a recovery of the REMIC's basis in its assets, and, as described
above, the issue price of the Residual  Certificates will be added to the  issue
price  of the Regular  Certificates in determining the  REMIC's initial basis in
its assets. See '  -- Sale or  Exchange of Residual  Certificates' below. For  a
discussion  of  possible  adjustments to  income  of  a subsequent  holder  of a
Residual Certificate to reflect any difference  between the actual cost of  such
Residual  Certificate  to  such  holder and  the  adjusted  basis  such Residual
Certificate would have in the  hands of an original Residual  Certificateholder,
see  ' -- Allocation  of the Income  of the REMIC  to the Residual Certificates'
above.
 
     Net Losses of the REMIC.  The REMIC  will have a net loss for any  calendar
quarter  in which its deductions exceed its gross income. Such net loss would be
allocated among  the  Residual Certificateholders  in  the same  manner  as  the
REMIC's  taxable income. The net loss allocable to any Residual Certificate will
not be deductible by the  holder to the extent that  such net loss exceeds  such
holder's  adjusted basis in such Residual Certificate.  Any net loss that is not
currently deductible  by reason  of this  limitation may  only be  used by  such
Residual  Certificateholder to offset its share of the REMIC's taxable income in
future periods (but not otherwise).  The ability of Residual  Certificateholders
that  are individuals or closely  held corporations to deduct  net losses may be
subject to additional limitations under the Code.
 
     Mark to Market  Rules.   Prospective purchasers of  a Residual  Certificate
should  be  aware  that  the IRS  recently  released  proposed  regulations (the
'Proposed Mark-to-Market Regulations') which provide that a Residual Certificate
acquired  after  January  3,  1995  cannot  be  marked-to-market.  The  Proposed
Mark-to-Market  Regulations  change the  temporary  regulations which  allowed a
Residual Certificate to be marked-to-market provided that it was not a 'negative
value' residual  interest.  Prospective  purchasers of  a  Residual  Certificate
should  consult their  tax advisors  regarding the  possible application  of the
Proposed Mark-to-Market Regulations.
 
     Pass-Through of Non-Interest Expenses of the REMIC.  As a general rule, all
of the fees and expenses of a REMIC will be taken into account by holders of the
Residual Certificates.  In  the case  of  a  single class  REMIC,  however,  the
expenses  and a  matching amount of  additional income will  be allocated, under
temporary Treasury  regulations, among  the Regular  Certificateholders and  the
Residual  Certificateholders  on a  daily basis  in  proportion to  the relative
amounts of income  accruing to each  Certificateholder on that  day. In  general
terms, a single class REMIC is one that either (i) would qualify, under existing
Treasury  regulations, as a grantor  trust if it were  not a REMIC (treating all
interests as ownership interests, even if  they would be classified as debt  for
federal  income  tax  purposes)  or (ii)  is  similar  to such  a  trust  and is
structured with the principal purpose of avoiding the single class REMIC  rules.
Unless otherwise stated in the applicable Prospectus Supplement, the expenses of
the  REMIC will be allocated to holders  of the related Residual Certificates in
their entirety and not to holders of the related Regular Certificates.
 
     In the  case of  individuals  (or trusts,  estates  or other  persons  that
compute their income in the same manner as individuals) who own an interest in a
Regular Certificate or a Residual Certificate directly or through a pass-through
interest  holder  that is  required  to pass  miscellaneous  itemized deductions
through to its owners or beneficiaries (e.g. a partnership, an S corporation  or
a grantor trust), such expenses will be deductible under Code Section 67 only to
the extent that such expenses, plus other 'miscellaneous itemized deductions' of
the  individual,  exceed  2%  of such  individual's  adjusted  gross  income. In
addition, Code  Section  68 provides  that  the amount  of  itemized  deductions
otherwise  allowable for  an individual  whose adjusted  gross income  exceeds a
certain amount (the 'Applicable Amount') will be reduced by the lesser of (i) 3%
of the excess  of the  individual's adjusted  gross income  over the  Applicable
Amount or (ii) 80% of the amount of itemized
 
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deductions  otherwise allowable for  the taxable year.  The amount of additional
taxable income recognized by Residual Certificateholders who are subject to  the
limitations  of either Code  Section 67 or  Code Section 68  may be substantial.
Further, holders (other  than corporations) subject  to the alternative  minimum
tax  may  not  deduct  miscellaneous  itemized  deductions  in  determining such
holders' alternative minimum taxable income. The REMIC is required to report  to
each  pass-through interest holder and to the IRS such holder's allocable share,
if any, of the  REMIC's non-interest expenses.  The term 'pass-through  interest
holder'  generally  refers to  individuals,  entities taxed  as  individuals and
certain pass-through  entities,  but does  not  include real  estate  investment
trusts.  Residual  Certificateholders  that  are  pass-through  interest holders
should consult their  own tax advisors  about the  impact of these  rules on  an
investment in the Residual Certificates.
 
     Excess  Inclusions.   A  portion of  the income  on a  Residual Certificate
(referred to in  the Code  as an 'excess  inclusion') for  any calendar  quarter
will,  with an  exception discussed  below for  certain thrift  institutions, be
subject to  federal income  tax in  all  events. Thus,  for example,  an  excess
inclusion  (i) may not,  except as described  below, be offset  by any unrelated
losses, deductions or loss carryovers of a Residual Certificateholder; (ii) will
be treated as  'unrelated business taxable  income' within the  meaning of  Code
Section  512 if the  Residual Certificateholder is  a pension fund  or any other
organization that  is subject  to tax  only on  its unrelated  business  taxable
income (see ' -- Tax-Exempt Investors' below); and (iii) is not eligible for any
reduction   in  the  rate  of  withholding  tax   in  the  case  of  a  Residual
Certificateholder that is a foreign investor. See ' -- Non-U.S. Persons'  below.
The  exception  for thrift  institutions is  available  only to  the institution
holding the Residual Certificate  and not to any  affiliate of the  institution,
unless  the affiliate is a subsidiary all  the stock of which, and substantially
all the  indebtedness  of  which, is  held  by  the institution,  and  which  is
organized  and  operated exclusively  in  connection with  the  organization and
operation of one or more REMICs.
 
     Except as  discussed  in  the  following paragraph,  with  respect  to  any
Residual  Certificateholder, the excess  inclusions for any  calendar quarter is
the excess, if  any, of (i)  the income of  such Residual Certificateholder  for
that  calendar quarter from  its Residual Certificate  over (ii) the  sum of the
'daily accruals' (as defined below) for all days during the calendar quarter  on
which  the Residual Certificateholder holds  such Residual Certificate. For this
purpose,  the  daily  accruals  with  respect  to  a  Residual  Certificate  are
determined by allocating to each day in the calendar quarter its ratable portion
of  the product of the 'adjusted issue price' (as defined below) of the Residual
Certificate at the  beginning of  the calendar quarter  and 120  percent of  the
'Federal  long-term  rate' in  effect at  the time  the Residual  Certificate is
issued. For this purpose, the 'adjusted  issue price' of a Residual  Certificate
at  the beginning of any calendar quarter equals the issue price of the Residual
Certificate, increased by the amount of  daily accruals for all prior  quarters,
and  decreased (but not below zero) by  the aggregate amount of payments made on
the Residual  Certificate before  the beginning  of such  quarter. The  'federal
long-term  rate' is an average  of current yields on  Treasury securities with a
remaining term of greater than nine years, computed and published monthly by the
IRS.
 
     As  an  exception  to  the  general  rule  described  above,  the  Treasury
Department has authority to issue regulations that would treat the entire amount
of  income  accruing  on a  Residual  Certificate  as excess  inclusions  if the
Residual Certificates in the aggregate  are considered not to have  'significant
value.' Under the REMIC Regulations, Residual Certificateholders that are thrift
institutions  described in  Code Section 593  can offset  excess inclusions with
unrelated  deductions,  losses  and   loss  carryovers  provided  the   Residual
Certificates  have  'significant value.'  For  purposes of  applying  this rule,
thrift  institutions  that  are  members   of  an  affiliated  group  filing   a
consolidated  return, together with  their subsidiaries formed  to issue REMICs,
are treated as  separate corporations. Residual  Certificates have  'significant
value'  if: (i) the Residual Certificates have  an aggregate issue price that is
at least equal to 2% of the  aggregate issue price of all Residual  Certificates
and  Regular Certificates  with respect  to the  REMIC and  (ii) the anticipated
weighted average  life of  the Residual  Certificates  is at  least 20%  of  the
anticipated  weighted  average  life  of  the  REMIC  based  on  the anticipated
principal payments to  be received  with respect thereto  (using the  Prepayment
Assumption  and any required or permitted clean up calls or required liquidation
provided  for  in  the  REMIC's  organizational  documents),  except  that   all
anticipated  distributions are to be used to calculate the weighted average life
of Regular Certificates that are not  entitled to any principal payments or  are
entitled  to a  disproportionately small  principal amount  relative to interest
payments thereon and all anticipated distributions  are to be used to  calculate
the  weighted average  life of the  Residual Certificates.  The principal amount
will be considered disproportionately small if  the issue price of the  Residual
Certificates  exceeds  125%  of  their  initial  principal  amount.  Finally, an
ordering rule under the REMIC Regulations provides that a thrift institution may
only offset  its excess  inclusion income  with deductions  after it  has  first
applied its deductions against income that is not excess inclusion income.
 
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     In  the case of any Residual Certificates  held by a real estate investment
trust,  the  aggregate   excess  inclusions  with   respect  to  such   Residual
Certificates,  reduced (but not below zero)  by the real estate investment trust
taxable income (within the meaning of Code Section 857(b)(2), excluding any  net
capital  gain),  will  be allocated  among  the  shareholders of  such  trust in
proportion to the dividends received by  such shareholders from such trust,  and
any amount so allocated will be treated as an excess inclusion with respect to a
Residual  Certificate  as  if  held  directly  by  such  shareholder.  Regulated
investment companies, common trust funds and certain cooperatives are subject to
similar rules.
 
     Payments.  Any distribution  made on a Residual  Certificate to a  Residual
Certificateholder  will be  treated as  a non-taxable  return of  capital to the
extent it does  not exceed  the Residual Certificateholder's  adjusted basis  in
such  Residual Certificate. To  the extent a  distribution exceeds such adjusted
basis, it will be treated as gain from the sale of the Residual Certificate.
 
     Sale or Exchange of  Residual Certificates.  If  a Residual Certificate  is
sold or exchanged, the seller will generally recognize gain or loss equal to the
difference  between the amount realized on the sale or exchange and its adjusted
basis in the Residual  Certificate (except that the  recognition of loss may  be
limited  under the 'wash sale' rules described below). A holder's adjusted basis
in a Residual Certificate generally equals the cost of such Residual Certificate
to such Residual Certificateholder, increased by the taxable income of the REMIC
that was included in the income of such Residual Certificateholder with  respect
to  such Residual  Certificate, and  decreased (but not  below zero)  by the net
losses that have been allowed  as deductions to such Residual  Certificateholder
with  respect to  such Residual  Certificate and  by the  distributions received
thereon by such Residual  Certificateholder. In general, any  such gain or  loss
will  be capital  gain or loss  provided the  Residual Certificate is  held as a
capital  asset.   However,  Residual   Certificates   will  be   'evidences   of
indebtedness' within the meaning of Code Section 582(c)(1), so that gain or loss
recognized  from sale of a Residual Certificate  by a bank or thrift institution
to which such section applies would be ordinary income or loss.
 
     Except as provided in Treasury regulations yet to be issued, if the  seller
of  a Residual Certificate reacquires such Residual Certificate, or acquires any
other Residual Certificate, any  residual interest in  another REMIC or  similar
interest  in  a 'taxable  mortgage pool'  (as defined  in Code  Section 7701(i))
during the period beginning six months before, and ending six months after,  the
date  of such sale, such sale  will be subject to the  'wash sale' rules of Code
Section 1091. In that event, any loss realized by the Residual Certificateholder
on the sale will  not be deductible, but,  instead, will increase such  Residual
Certificateholder's adjusted basis in the newly acquired asset.
 
PROHIBITED TRANSACTIONS AND OTHER TAXES
 
     The  Code imposes a  tax on REMICs equal  to 100 percent  of the net income
derived from 'prohibited transactions'  (the 'Prohibited Transactions Tax').  In
general, subject to certain specified exceptions, a prohibited transaction means
the  disposition of a Mortgage  Loan, the receipt of  income from a source other
than a Mortgage  Loan or  certain other  permitted investments,  the receipt  of
compensation  for services, or  gain from the disposition  of an asset purchased
with the  payments  on  the  Mortgage Loans  for  temporary  investment  pending
distribution  on the Certificates. It is not anticipated that the Trust Fund for
any Series of Certificates will engage  in any prohibited transactions in  which
it would recognize a material amount of net income.
 
     In  addition, certain contributions to a Trust Fund as to which an election
has been made to treat such  Trust Fund as a REMIC  made after the day on  which
such  Trust Fund issues all of its interests could result in the imposition of a
tax on the Trust  Fund equal to  100% of the value  of the contributed  property
(the  'Contributions Tax').  No Trust Fund  for any Series  of Certificates will
accept contributions that would subject it to such tax.
 
     In addition, a Trust Fund  as to which an election  has been made to  treat
such  Trust Fund as  a REMIC may  also be subject  to federal income  tax at the
highest corporate rate on 'net income from foreclosure property,' determined  by
reference  to the rules applicable to  real estate investment trusts 'Net income
from foreclosure  property' generally  means  income from  foreclosure  property
other than qualifying income for a real estate investment trust.
 
     Where any Prohibited Transactions Tax, Contributions Tax, tax on net income
from  foreclosure property or state or local income or franchise tax that may be
imposed on a  REMIC relating to  any Series  of Certificates arises  out of,  or
results  from,  (i) a  breach  of the  related  Master Servicer's,  Trustee's or
Seller's obligations, as the case may  be, under the related Agreement for  such
Series,    such    tax    will    be   borne    by    such    Master   Servicer,
 
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<PAGE>
Trustee or Seller, as the case may be, out of its own funds or (ii) the Seller's
obligation to repurchase a Mortgage Loan, such tax will be borne by the  Seller.
In  the event that such Master Servicer, Trustee  or Seller, as the case may be,
fails to pay or is not required to pay any such tax as provided above, such  tax
will  be payable  out of the  Trust Fund  for such Series  and will  result in a
reduction in amounts available  to be distributed  to the Certificateholders  of
such Series.
 
LIQUIDATION AND TERMINATION
 
     If  the REMIC adopts a plan of  complete liquidation, within the meaning of
Code Section 860F(a)(4)(A)(i), which may  be accomplished by designating in  the
REMIC's  final tax return a date on which  such adoption is deemed to occur, and
sells all of its assets  (other than cash) within  a 90-day period beginning  on
such  date, the REMIC  will not be  subject to any  Prohibited Transactions Tax,
provided that the REMIC  credits or distributes in  liquidation all of the  sale
proceeds  plus its  cash (other  than the  amounts retained  to meet  claims) to
holders of Regular and Residual Certificates within the 90-day period.
 
     The REMIC will terminate  shortly following the  retirement of the  Regular
Certificates.  If a Residual Certificateholder's  adjusted basis in the Residual
Certificate  exceeds  the   amount  of   cash  distributed   to  such   Residual
Certificateholder  in final  liquidation of its  interest, then  it would appear
that the Residual  Certificateholder would be  entitled to a  loss equal to  the
amount  of such excess. It is unclear whether such a loss, if allowed, will be a
capital loss or an ordinary loss.
 
ADMINISTRATIVE MATTERS
 
     Solely for the purpose  of the administrative provisions  of the Code,  the
REMIC   generally  will   be  treated   as  a   partnership  and   the  Residual
Certificateholders will be treated as the partners. Certain information will  be
furnished  quarterly  to each  Residual  Certificateholder who  held  a Residual
Certificate on any day in the previous calendar quarter.
 
     Each Residual Certificateholder is  required to treat  items on its  return
consistently  with their  treatment on the  REMIC's return,  unless the Residual
Certificateholder either  files a  statement  identifying the  inconsistency  or
establishes  that the inconsistency resulted from incorrect information received
from the REMIC.  The IRS may  assert a  deficiency resulting from  a failure  to
comply  with the  consistency requirement without  instituting an administrative
proceeding at the REMIC level.  The REMIC does not intend  to register as a  tax
shelter  pursuant to Code  Section 6111 because  it is not  anticipated that the
REMIC will have  a net  loss for  any of  the first  five taxable  years of  its
existence. Any person that holds a Residual Certificate as a nominee for another
person  may be  required to  furnish the REMIC,  in a  manner to  be provided in
Treasury regulations,  with  the name  and  address  of such  person  and  other
information.
 
TAX-EXEMPT INVESTORS
 
     Any  Residual Certificateholder that is a pension fund or other entity that
is subject to federal  income taxation only on  its 'unrelated business  taxable
income'  within the meaning of  Code Section 512 will be  subject to such tax on
that portion of  the distributions received  on a Residual  Certificate that  is
considered  an  excess  inclusion.  See '  --  Residual  Certificates  -- Excess
Inclusions' above.
 
NON-U.S. PERSONS
 
     Amounts paid to Residual Certificateholders  who are not U.S. persons  (see
'  -- Regular Certificates  -- Non-U.S.  Persons' above) are treated as interest
for purposes of the  30% (or lower treaty  rate) United States withholding  tax.
Amounts  distributed  to  holders  of Residual  Certificates  should  qualify as
'portfolio interest,'  subject  to the  conditions  described in  '  --  Regular
Certificates'  above, but only to the  extent that the underlying mortgage loans
were originated after July 18, 1984. Furthermore, the rate of withholding on any
income on a  Residual Certificate that  is excess inclusion  income will not  be
subject  to  reduction under  any  applicable tax  treaties.  See '  -- Residual
Certificates -- Excess Inclusions' above. If the portfolio interest exemption is
unavailable, such amount will be subject  to United States withholding tax  when
paid  or otherwise distributed (or when the Residual Certificate is disposed of)
under  rules  similar  to  those  for  withholding  upon  disposition  of   debt
instruments  that have  OID. The Code,  however, grants  the Treasury Department
authority to  issue  regulations requiring  that  those amounts  be  taken  into
account earlier than otherwise provided where necessary
 
                                       74
 
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<PAGE>
to prevent avoidance of tax (for example, where the Residual Certificates do not
have  significant value). See  ' -- Residual  Certificates -- Excess Inclusions'
above. If the  amounts paid  to Residual  Certificateholders that  are not  U.S.
persons  are effectively  connected with  their conduct  of a  trade or business
within the United States,  the 30% (or lower  treaty rate) withholding will  not
apply.  Instead, the amounts paid to such  non-U.S. Person will be subject to U.
S. federal income taxation at regular graduated rates. For special  restrictions
on  the transfer of Residual Certificates,  see ' -- Tax-Related Restrictions on
Transfers of Residual Certificates' below.
 
     Regular Certificateholders and persons related  to such holders should  not
acquire  any Residual Certificates, and  Residual Certificateholders and persons
related  to  Residual   Certificateholders  should  not   acquire  any   Regular
Certificates,  without consulting their tax advisors  as to the possible adverse
tax consequences of such acquisition.
 
TAX-RELATED RESTRICTIONS ON TRANSFERS OF RESIDUAL CERTIFICATES
 
     Disqualified Organizations.  An  entity may not qualify  as a REMIC  unless
there  are reasonable arrangements designed to ensure that residual interests in
such entity are  not held  by 'disqualified organizations'  (as defined  below).
Further, a tax is imposed on the transfer of a residual interest in a REMIC to a
'disqualified  organization.' The amount of the tax equals the product of (A) an
amount (as determined under the REMIC Regulations) equal to the present value of
the total  anticipated 'excess  inclusions' with  respect to  such interest  for
periods  after the transfer and (B) the highest marginal federal income tax rate
applicable to corporations.  The tax  is imposed  on the  transferor unless  the
transfer  is through  an agent  (including a  broker or  other middleman)  for a
disqualified organization, in which event the  tax is imposed on the agent.  The
person  otherwise liable for the tax shall  be relieved of liability for the tax
if the transferee furnished to such  person an affidavit that the transferee  is
not  a disqualified organization and,  at the time of  the transfer, such person
does not have  actual knowledge  that the  affidavit is  false. A  'disqualified
organization'  means (A) the  United States, any  State, possession or political
subdivision thereof, any foreign  government, any international organization  or
any  agency or instrumentality of any of  the foregoing (provided that such term
does not include  an instrumentality if  all its activities  are subject to  tax
and,  except for FHLMC, a majority of its  board of directors is not selected by
any such governmental agency), (B) any organization (other than certain farmers'
cooperatives)  generally   exempt  from   federal  income   taxes  unless   such
organization  is subject to  the tax on 'unrelated  business taxable income' and
(C) a rural electric or telephone cooperative.
 
     A tax is imposed  on a 'pass-through entity'  (as defined below) holding  a
residual  interest in  a REMIC  if at any  time during  the taxable  year of the
pass-through entity  a disqualified  organization  is the  record holder  of  an
interest  in such entity. The amount  of the tax is equal  to the product of (A)
the amount of excess inclusions for  the taxable year allocable to the  interest
held  by  the disqualified  organization and  (B)  the highest  marginal federal
income tax rate  applicable to corporations.  The pass-through entity  otherwise
liable for the tax, for any period during which the disqualified organization is
the  record holder of an interest in  such entity, will be relieved of liability
for the tax if  such record holder  furnishes to such  entity an affidavit  that
such  record holder is not a disqualified organization and, for such period, the
pass-through entity does not have actual knowledge that the affidavit is  false.
For  this  purpose, a  'pass-through entity'  means  (i) a  regulated investment
company, real estate investment trust or common trust fund, (ii) a  partnership,
trust  or estate and  (iii) certain cooperatives.  Except as may  be provided in
Treasury regulations not yet issued, any  person holding an interest in a  pass-
through  entity as a nominee for another will, with respect to such interest, be
treated as a pass-through entity. The tax on pass-through entities is  generally
effective for periods after March 31, 1988, except that in the case of regulated
investment  companies,  real estate  investment trusts,  common trust  funds and
publicly-traded partnerships the tax shall apply  only to taxable years of  such
entities  beginning after December  31, 1988. Under  proposed legislation, large
partnerships (generally with  250 or more  partners) will be  taxable on  excess
inclusion income as if all partners were disqualified organizations.
 
     In  order to comply  with these rules,  the Agreement will  provide that no
record or  beneficial  ownership  interest  in a  Residual  Certificate  may  be
purchased,  transferred  or sold,  directly or  indirectly, without  the express
written consent of  the Master  Servicer. The  Master Servicer  will grant  such
consent  to  a proposed  transfer  only if  it  receives the  following:  (i) an
affidavit from  the  proposed  transferee  to  the  effect  that  it  is  not  a
disqualified  organization and  is not acquiring  the Residual  Certificate as a
nominee or agent  for a  disqualified organization and  (ii) a  covenant by  the
proposed  transferee to  the effect  that the  proposed transferee  agrees to be
bound by and to  abide by the transfer  restrictions applicable to the  Residual
Certificate.
 
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<PAGE>
     Noneconomic  Residual Certificates.   The REMIC  Regulations disregard, for
federal income tax purposes, any transfer of a Noneconomic Residual  Certificate
to  a 'U.S.  Person,' as  defined in the  following section  of this discussion,
unless no significant  purpose of the  transfer is to  enable the transferor  to
impede  the assessment or collection of  tax. A Noneconomic Residual Certificate
is any Residual Certificate  (including a Residual  Certificate with a  positive
value  at issuance)  unless, at  the time of  transfer, taking  into account the
Prepayment Assumption and any required or  permitted clean up calls or  required
liquidation  provided  for  in  the REMIC's  organizational  documents,  (i) the
present value of the expected  future distributions on the Residual  Certificate
at  least equals  the product  of the  present value  of the  anticipated excess
inclusions and the highest corporate income tax  rate in effect for the year  in
which  the transfer occurs  and (ii) the transferor  reasonably expects that the
transferee will receive  distributions from the  REMIC at or  after the time  at
which  taxes accrue on the anticipated excess inclusions in an amount sufficient
to satisfy the accrued taxes. A significant purpose to impede the assessment  or
collection  of tax exists if the transferor, at the time of the transfer, either
knew or should have known  that the transferee would  be unwilling or unable  to
pay  taxes due on its share of the  taxable income of the REMIC. A transferor is
presumed not to have such knowledge if (i) the transferor conducted a reasonable
investigation of  the transferee  and (ii)  the transferee  acknowledges to  the
transferor  that the residual interest may generate tax liabilities in excess of
the cash flow and the  transferee represents that it  intends to pay such  taxes
associated  with the residual  interest as they  become due. If  a transfer of a
Noneconomic Residual Certificate is  disregarded, the transferor would  continue
to  be treated as the owner of the Residual Certificate and would continue to be
subject to tax on its allocable portion of the net income of the REMIC.
 
     Foreign Investors.  The  REMIC Regulations provide that  the transfer of  a
Residual  Certificate that has a 'tax avoidance potential' to a 'foreign person'
will be disregarded for federal income tax purposes. This rule appears to  apply
to  a transferee  who is not  a U.S.  Person unless such  transferee's income in
respect of the Residual Certificate is effectively connected with the conduct of
a United States trade or  business. A Residual Certificate  is deemed to have  a
tax  avoidance  potential  unless,  at  the  time  of  transfer,  the transferor
reasonably expects that the REMIC will distribute to the transferee amounts that
will equal at least 30 percent of  each excess inclusion, and that such  amounts
will  be distributed at or  after the time the  excess inclusion accrues and not
later than the end of  the calendar year following the  year of accrual. If  the
non-U.S.  Person  transfers  the  Residual Certificate  to  a  U.S.  Person, the
transfer will be  disregarded, and the  foreign transferor will  continue to  be
treated  as the owner, if the transfer has the effect of allowing the transferor
to avoid  tax  on  accrued  excess  inclusions.  The  provisions  in  the  REMIC
Regulations regarding transfers of Residual Certificates that have tax avoidance
potential  to foreign  persons are  effective for  all transfers  after June 30,
1992. The Agreement will provide that no record or beneficial ownership interest
in a  Residual Certificate  may be  transferred, directly  or indirectly,  to  a
non-U.S.  Person unless such  person provides the Trustee  with a duly completed
I.R.S. Form 4224 and the Trustee consents to such transfer in writing.
 
     Any attempted transfer or pledge in violation of the transfer  restrictions
shall  be absolutely  null and void  and shall  vest no rights  in any purported
transferee. Investors in Residual Certificates are advised to consult their  own
tax  advisors with  respect to  transfers of  the Residual  Certificates and, in
addition, pass-through entities are  advised to consult  their own tax  advisors
with respect to any tax which may be imposed on a pass-through entity.
 
                            STATE TAX CONSIDERATIONS
 
     In  addition to the  federal income tax  consequences described in 'Certain
Federal Income  Tax Considerations,'  potential  investors should  consider  the
state  and  local income  tax consequences  of  the acquisition,  ownership, and
disposition of  the Certificates.  State and  local income  tax law  may  differ
substantially  from the corresponding federal law,  and this discussion does not
purport to describe any aspect of the income tax laws of any state or  locality.
Therefore,  potential  investors  should  consult their  own  tax  advisors with
respect to the various tax consequences of investments in the Certificates.
 
                              ERISA CONSIDERATIONS
 
     The following describes  certain considerations under  ERISA and the  Code,
which  apply  only  to  Certificates  of a  Series  that  are  not  divided into
subclasses. If Certificates are divided  into subclasses the related  Prospectus
Supplement  will contain information concerning considerations relating to ERISA
and the Code that are applicable to such Certificates.
 
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     ERISA imposes requirements on employee benefit plans (and on certain  other
retirement  plans and arrangements, including individual retirement accounts and
annuities, Keogh plans and collective investment funds and separate accounts  in
which  such plans, accounts or arrangements are invested) (collectively 'Plans')
subject to ERISA and on persons who are fiduciaries with respect to such  Plans.
Generally, ERISA applies to investments made by Plans. Among other things, ERISA
requires  that the  assets of Plans  be held in  trust and that  the trustee, or
other duly  authorized fiduciary,  have exclusive  authority and  discretion  to
manage  and control the assets of such  Plans. ERISA also imposes certain duties
on persons who are fiduciaries of  Plans. Under ERISA, any person who  exercises
any  authority or control respecting the management or disposition of the assets
of a Plan  is considered  to be  a fiduciary of  such Plan  (subject to  certain
exceptions   not  here  relevant).  Certain  employee  benefit  plans,  such  as
governmental plans (as defined in ERISA  Section 3(32)) and, if no election  has
been  made under Section 410(d)  of the Code, church  plans (as defined in ERISA
Section 3(33)), are not  subject to ERISA  requirements. Accordingly, assets  of
such  plans may be invested  in Senior Certificates without  regard to the ERISA
considerations  described  above  and  below,  subject  to  the  provisions   of
applicable  state law. Any such plan which is qualified and exempt from taxation
under Code Sections  401(a) and 501(a),  however, is subject  to the  prohibited
transaction rules set forth in Code Section 503.
 
     On  November 13,  1986, the United  States Department of  Labor (the 'DOL')
issued final  regulations  concerning the  definition  of what  constitutes  the
assets  of a  Plan. (Labor Reg.  Section 2510.3-101) Under  this regulation, the
underlying assets and properties of corporations, partnerships and certain other
entities in  which a  Plan makes  an  'equity' investment  could be  deemed  for
purposes  of ERISA to be assets of  the investing Plan in certain circumstances.
However, the regulation provides that, generally, the assets of a corporation or
partnership in which a Plan invests will not be deemed for purposes of ERISA  to
be  assets of such Plan if the equity interest acquired by the investing Plan is
a publicly-offered security.  A publicly-offered security,  as defined in  Labor
Reg.  Section 2510.3-101, is a security that is widely held, freely transferable
and registered under the Securities Exchange Act of 1934, as amended.
 
     In addition to the imposition of general fiduciary standards of  investment
prudence  and  diversification, ERISA  prohibits a  broad range  of transactions
involving Plan  assets  and  persons  ('Parties  in  Interest')  having  certain
specified  relationships  to a  Plan and  imposes additional  prohibitions where
Parties in  Interest are  fiduciaries with  respect to  such Plan.  Because  the
Mortgage   Loans  may  be  deemed  Plan  assets  of  each  Plan  that  purchases
Certificates, an investment in the Certificates by a Plan might be a  prohibited
transaction  under ERISA Sections 406 and 407 and subject to an excise tax under
Code Section 4975 unless a statutory or administrative exemption applies.
 
     In Prohibited  Transaction  Exemption  83-1  ('PTE  83-1'),  which  amended
Prohibited  Transaction Exemption 81-7, the DOL exempted from ERISA's prohibited
transaction rules certain transactions relating to the operation of  residential
mortgage  pool investment trusts and the purchase, sale and holding of 'mortgage
pool pass-through certificates'  in the initial  issuance of such  certificates.
PTE  83-1  permits,  subject  to  certain  conditions,  transactions  that might
otherwise be prohibited between  Plans and Parties in  Interest with respect  to
those  Plans related to the origination, maintenance and termination of mortgage
pools consisting of mortgage loans secured by first or second mortgages or deeds
of trust on single-family residential property, and the acquisition and  holding
of  certain mortgage pool pass-through  certificates representing an interest in
such mortgage pools by Plans. If the general conditions (discussed below) of PTE
83-1 are  satisfied,  investments  by  a Plan  in  certificates  that  represent
interests in a mortgage pool consisting of mortgage loans representing loans for
single  family  homes ('Single  Family Certificates')  will  be exempt  from the
prohibitions  of  ERISA   Sections  406(a)  and   407  (relating  generally   to
transactions  with  Parties in  Interest who  are not  fiduciaries) if  the Plan
purchases the Single Family Certificates at  no more than fair market value  and
will  be  exempt  from the  prohibitions  of  ERISA Sections  406(b)(1)  and (2)
(relating generally  to  transactions with  fiduciaries)  if, in  addition,  the
purchase is approved by an independent fiduciary, no sales commission is paid to
the pool sponsor, the Plan does not purchase more than twenty-five percent (25%)
of all Single Family Certificates and at least fifty percent (50%) of all Single
Family  Certificates are purchased by persons independent of the pool sponsor or
pool trustee. PTE 83-1 does not provide an exemption for transactions  involving
Subordinated Certificates. Accordingly, unless otherwise provided in the related
Prospectus  Supplement, no transfer of a Subordinated Certificate may be made to
a Plan.
 
     The discussion in this  and the next succeeding  paragraph applies only  to
Single  Family Certificates.  The Depositor believes  that, for  purposes of PTE
83-1,  the  term   'mortgage  pass-through  certificate'   would  include:   (i)
Certificates   issued  in  a  Series  consisting  of  only  a  single  class  of
Certificates; and (ii) Senior Certificates
 
                                       77
 
<PAGE>

<PAGE>
issued in a  Series in which  there is  only one class  of Senior  Certificates;
provided  that  the  Certificates in  the  case  of clause  (i),  or  the Senior
Certificates in the case  of clause (ii), evidence  the beneficial ownership  of
both  a  specified percentage  of future  interest  payments (greater  than zero
percent (0%)) and  a specified percentage  (greater than zero  percent (0%))  of
future principal payments on the Mortgage Loans. It is not clear whether a class
of  Certificates that evidences the beneficial ownership in a Trust Fund divided
into mortgage loan  groups, beneficial  ownership of a  specified percentage  of
interest  payments  only or  principal payments  only, or  a notional  amount of
either principal or interest  payments, or a class  of Certificates entitled  to
receive  payments of  interest and  principal on  the Mortgage  Loans only after
payments to other classes  or after the occurrence  of certain specified  events
would be a 'mortgage pass-through certificate' for purposes of PTE 83-1.
 
     PTE  83-1 sets forth  three general conditions which  must be satisfied for
any transaction to be eligible for exemption: (i) the maintenance of a system of
insurance or  other  protection  for  the pooled  mortgage  loans  and  property
securing  such loans and for  indemnifying certificateholders against reductions
in pass-through payments due to property damage or defaults in loan payments  in
an  amount  not less  than  the greater  of one  percent  (1%) of  the aggregate
principal balance of all covered pooled mortgage loans or the principal  balance
of  the  largest covered  pooled mortgage  loan;  (ii) the  existence of  a pool
trustee who is not an affiliate of  the pool sponsor; and (iii) a limitation  on
the  amount of  the payment  retained by the  pool sponsor,  together with other
funds inuring  to its  benefit,  to not  more  than adequate  consideration  for
selling the mortgage loans plus reasonable compensation for services provided by
the  pool sponsor to  the mortgage pool.  The Depositor believes  that the first
general condition  referred to  above  will be  satisfied  with respect  to  the
Certificates  in a Series issued without  a subordination feature, or the Senior
Certificates only in a Series issued with a subordination feature, provided that
the subordination and Reserve Fund, subordination by shifting of interests,  the
pool  insurance  or  other form  of  credit enhancement  described  herein (such
subordination, pool  insurance or  other form  of credit  enhancement being  the
system  of insurance or  other protection referred  to above) with  respect to a
Series of Certificates is maintained in an  amount not less than the greater  of
one  percent of  the aggregate  principal balance of  the Mortgage  Loans or the
principal balance  of  the  largest  Mortgage  Loan.  See  'Description  of  the
Certificates' herein. In the absence of a ruling that the system of insurance or
other  protection with respect  to a Series of  Certificates satisfies the first
general condition  referred to  above,  there can  be  no assurance  that  these
features  will be so viewed by the DOL.  The Trustee will not be affiliated with
the Depositor.
 
     Each Plan fiduciary who is responsible for making the investment  decisions
whether to purchase or commit to purchase and to hold Single Family Certificates
must  make  its own  determination as  to  whether the  first and  third general
conditions, and  the  specific conditions  described  briefly in  the  preceding
paragraph,  of PTE 83-1  have been satisfied,  or as to  the availability of any
other  prohibited  transaction  exemptions.  Each  Plan  fiduciary  should  also
determine  whether, under the general fiduciary standards of investment prudence
and diversification, an investment  in the Certificates  is appropriate for  the
Plan,  taking into  account the  overall investment policy  of the  Plan and the
composition of the Plan's investment portfolio.
 
     The DOL  has  granted  to certain  underwriters  individual  administrative
exemptions  (the  'Underwriter  Exemptions')  from  certain  of  the  prohibited
transaction rules of ERISA and the related excise tax provisions of Section 4975
of the Code with respect to the initial purchase, the holding and the subsequent
resale by Plans of certificates in  pass-through trusts that consist of  certain
receivables,   loans  and  other  obligations   that  meet  the  conditions  and
requirements of the Underwriter Exemptions.
 
     While each  Underwriter Exemption  is  an individual  exemption  separately
granted  to a  specific underwriter,  the terms  and conditions  which generally
apply to the Underwriter Exemptions are substantially the following:
 
          (1) the  acquisition  of  the  certificates by  a  Plan  is  on  terms
     (including  the price for the certificates)  that are at least as favorable
     to the  Plan as  they  would be  in an  arm's  length transaction  with  an
     unrelated party;
 
          (2)  the rights and interest evidenced by the certificates acquired by
     the Plan are  not subordinated  to the  rights and  interests evidenced  by
     other certificates of the trust fund;
 
          (3)  the certificates required  by the Plan have  received a rating at
     the time  of such  acquisition that  is one  of the  three highest  generic
     rating  categories  from Standard  & Poor's  Ratings  Group, a  division of
     McGraw-Hill, Inc.  ('S&P'), Moody's  Investors Service,  Inc.  ('Moody's'),
     Duff  & Phelps Credit  Rating Co. ('D&P') or  Fitch Investors Service, Inc.
     ('Fitch');
 
          (4) the trustee must not  be an affiliate of  any other member of  the
     Restricted Group;
 
                                       78
 
<PAGE>

<PAGE>
          (5)  the sum of all payments made  to and retained by the underwriters
     in connection with the distribution of the certificates represents not more
     than reasonable compensation for underwriting the certificates; the sum  of
     all  payments made to and retained by the seller pursuant to the assignment
     of the loans to  the trust fund  represents not more  than the fair  market
     value  of such loans; the  sum of all payments made  to and retained by the
     servicer and  any  other  servicer  represents  not  more  than  reasonable
     compensation  for such  person's services  under the  agreement pursuant to
     which the loans are pooled  and reimbursements of such person's  reasonable
     expenses in connection therewith; and
 
          (6) the Plan investing in the certificates is an 'accredited investor'
     as defined in Rule 501(a)(1) of Regulation D of the Securities and Exchange
     Commission under the Securities Act of 1933 as amended.
 
     The trust fund must also meet the following requirements:
 
          (i)  the corpus of the trust fund must consist solely of assets of the
     type that have been included in other investment pools;
 
          (ii) certificates in such other investment pools must have been  rated
     in one of the three highest rating categories of S&P, Moody's, Fitch or D&P
     for at least one year prior to the Plan's acquisition of certificates; and
 
          (iii) certificates evidencing interests in such other investment pools
     must  have been purchased  by investors other  than Plans for  at least one
     year prior to any Plan's acquisition of certificates.
 
     Moreover, the Underwriter Exemptions generally provide relief from  certain
self-dealing/conflict  of interest  prohibited transactions that  may occur when
the Plan fiduciary causes a Plan to acquire certificates in a trust as to  which
the  fiduciary (or its affiliate)  is an obligor on  the receivables held in the
trust provided that, among other requirements: (i) in the case of an acquisition
in connection with the initial issuance of certificates, at least fifty  percent
(50%)  of each class of certificates in which Plans have invested is acquired by
persons independent  of  the  Restricted  Group, (ii)  such  fiduciary  (or  its
affiliate)  is an obligor with respect to five  percent (5%) or less of the fair
market value  of  the obligations  contained  in  the trust;  (iii)  the  Plan's
investment  in certificates  of any  class does  not exceed  twenty-five percent
(25%) of all of the  certificates of that class outstanding  at the time of  the
acquisition;   and  (iv)  immediately  after   the  acquisition,  no  more  than
twenty-five percent (25%) of the assets of  the Plan with respect to which  such
person  is a fiduciary  is invested in certificates  representing an interest in
one or more trusts containing  assets sold or serviced  by the same entity.  The
Underwriter  Exemptions  do not  apply  to Plans  sponsored  by the  Seller, the
related Underwriter, the Trustee, the Master Servicer, any insurer with  respect
to  the Mortgage Loans, any  obligor with respect to  Mortgage Loans included in
the Trust  Fund  constituting more  than  five  percent (5%)  of  the  aggregate
unamortized  principal balance of the assets in the Trust Fund, or any affiliate
of such parties.
 
     The Prospectus Supplement for each Series of Certificates will indicate the
classes of Certificates, if any, offered thereby as to which it is expected that
an Underwriter Exemption will apply.
 
     Any Plan fiduciary which proposes to cause a Plan to purchase  Certificates
should consult with its counsel concerning the impact of ERISA and the Code, the
applicability of PTE 83-1, the availability and applicability of any Underwriter
Exemption  or any other exemptions from the prohibited transaction provisions of
ERISA  and  the  Code   and  the  potential   consequences  in  their   specific
circumstances,  prior to making  such investment. Moreover,  each Plan fiduciary
should determine whether  under the  general fiduciary  standards of  investment
procedure  and diversification an investment  in the Certificates is appropriate
for the Plan, taking into account the overall investment policy of the Plan  and
the composition of the Plan's investment portfolio.
 
                                LEGAL INVESTMENT
 
     The  Prospectus  Supplement for  each Series  of Certificates  will specify
which, if any, of  the classes of Certificates  offered thereby will  constitute
'mortgage  related securities'  for purposes  of SMMEA.  Classes of Certificates
that qualify  as 'mortgage  related securities'  will be  legal investments  for
persons,  trusts, corporations, partnerships,  associations, business trusts and
business entities (including depository  institutions, life insurance  companies
and  pension funds) created pursuant to or existing under the laws of the United
States or of  any state  (including the District  of Columbia  and Puerto  Rico)
whose  authorized investments are subject to state regulation to the same extent
as, under applicable law,  obligations issued by or  guaranteed as to  principal
and  interest by the United States or any such entities. Under SMMEA, if a state
enacts legislation  prior to  October 4,  1991 specifically  limiting the  legal
investment    authority    of    any    such    entities    with    respect   to
 
                                       79
 
<PAGE>

<PAGE>
'mortgage  related   securities,'  the   Certificates  will   constitute   legal
investments for entities subject to such legislation only to the extent provided
therein.  Approximately twenty-one states adopted  such legislation prior to the
October 4, 1991  deadline. SMMEA provides,  however, that in  no event will  the
enactment  of  any  such  legislation affect  the  validity  of  any contractual
commitment to purchase, hold or invest  in Certificates, or require the sale  or
other  disposition of Certificates,  so long as  such contractual commitment was
made or such Certificates acquired prior to the enactment of such legislation.
 
     SMMEA also amended  the legal investment  authority of  federally-chartered
depository  institutions as follows:  federal savings and  loan associations and
federal savings banks  may invest  in, sell  or otherwise  deal in  Certificates
without  limitations as to  the percentage of  their assets represented thereby,
federal credit unions may  invest in mortgage  related securities, and  national
banks  may purchase  Certificates for  their own  account without  regard to the
limitations generally applicable to investment securities set forth in 12 U.S.C.
24 (Seventh), subject in each case to such regulations as the applicable federal
authority may prescribe. In this connection, federal credit unions should review
the National Credit Union  Administration ('NCUA') Letter  to Credit Unions  No.
96, as modified by Letter to Credit Unions No. 108, which includes guidelines to
assist federal credit unions in making investment decisions for mortgage related
securities,  and the NCUA's  regulation 'Investment and  Deposit Activities' (12
C.F.R. Part 703), (whether or not the class of Certificates under  consideration
for purchase constitutes a 'mortgage related security').
 
     All  depository institutions considering an  investment in the Certificates
(whether or  not the  class  of certificates  under consideration  for  purchase
constitutes  a 'mortgage related  security' should review  the Federal Financial
Institutions Examination Council's  Supervisory Policy  Statement on  Securities
Activities  (to the extent adopted by  their respective regulators) (the 'Policy
Statement'), setting forth,  in relevant  part, certain  securities trading  and
sales practices deemed unsuitable for an institution's investment portfolio, and
guidelines  for (and restrictions on) investing in mortgage derivative products,
including 'mortgage related securities' that are 'high-risk mortgage securities'
as defined in  the Policy  Statement. According  to the  Policy Statement,  such
'high-risk  mortgage  securities' include  securities  such as  Certificates not
entitled to distributions  allocated to principal  or interest, or  Subordinated
Certificates.  Under  the Policy  Statement, it  is  the responsibility  of each
depository institution to determine, prior to purchase (and at stated  intervals
thereafter),  whether a particular  mortgage derivative product  is a 'high-risk
mortgage security', and whether  the purchase (or retention)  of such a  product
would be consistent with the Policy Statement.
 
     The  foregoing  does  not  take  into  consideration  the  applicability of
statutes,  rules,  regulations,  orders,  guidelines,  or  agreements  generally
governing  investments made by a particular investor, including, but not limited
to, 'prudent investor'  provisions, percentage-of-assets  limits and  provisions
that  may restrict or  prohibit investment in securities  that are not 'interest
bearing' or 'income paying.'
 
     There may  be  other restrictions  on  the ability  of  certain  investors,
including  depository  institutions,  either  to  purchase  Certificates  or  to
purchase Certificates  representing  more than  a  specified percentage  of  the
investor's  assets.  Investors  should  consult  their  own  legal  advisors  in
determining whether  and  to  what  extent  the  Certificates  constitute  legal
investments for such investors.
 
                             METHOD OF DISTRIBUTION
 
     Certificates  are being  offered hereby in  Series from time  to time (each
Series evidencing a separate Trust Fund) through any of the following methods:
 
          1. By negotiated firm commitment underwriting and public reoffering by
     underwriters;
 
          2. By agency placements through one or more placement agents primarily
     with institutional investors and dealers; and
 
          3.  By  placement  directly   by  the  Depositor  with   institutional
     investors.
 
     A  Prospectus  Supplement  will  be prepared  for  each  Series  which will
describe the method of offering  being used for that  Series and will set  forth
the  identity of  any underwriters  thereof and either  the price  at which such
Series is being offered, the nature and amount of any underwriting discounts  or
additional compensation to such underwriters and the proceeds of the offering to
the  Depositor, or the method by which  the price at which the underwriters will
sell the  Certificates will  be determined.  Each Prospectus  Supplement for  an
underwritten  offering will also contain information regarding the nature of the
underwriters' obligations, any material  relationship between the Depositor  and
any    underwriter   and,   where   appropriate,   information   regarding   any
 
                                       80
 
<PAGE>

<PAGE>
discounts or concessions to be allowed or reallowed to dealers or others and any
arrangements to stabilize the  market for the Certificates  so offered. In  firm
commitment  underwritten  offerings,  the  underwriters  will  be  obligated  to
purchase all of  the Certificates of  such Series if  any such Certificates  are
purchased.  Certificates  may  be acquired  by  the underwriters  for  their own
accounts and  may be  resold from  time to  time in  one or  more  transactions,
including  negotiated  transactions,  at a  fixed  public offering  price  or at
varying prices determined at the time of sale.
 
     Underwriters and agents may be entitled under agreements entered into  with
the  Depositor  to  indemnification  by  the  Depositor  against  certain  civil
liabilities, including liabilities under the Securities Act of 1933, as amended,
or to contribution with  respect to payments which  such underwriters or  agents
may be required to make in respect thereof.
 
     If  a Series  is offered  other than  through underwriters,  the Prospectus
Supplement relating thereto  will contain  information regarding  the nature  of
such  offering and any agreements  to be entered into  between the Depositor and
purchasers of Certificates of such Series.
 
                                 LEGAL MATTERS
 
     The validity  of the  Certificates, including  certain federal  income  tax
consequences  with respect  thereto, will  be passed  upon for  the Depositor by
Brown & Wood LLP, One World Trade Center, New York, New York 10048.
 
                             FINANCIAL INFORMATION
 
     A new Trust Fund will be formed with respect to each Series of Certificates
and no Trust Fund will engage in  any business activities or have any assets  or
obligations  prior  to  the  issuance of  the  related  Series  of Certificates.
Accordingly, no financial  statements with  respect to  any Trust  Fund will  be
included in this Prospectus or in the related Prospectus Supplement.
 
                                     RATING
 
     It  is  a condition  to the  issuance  of the  Certificates of  each Series
offered hereby and by the Prospectus Supplement that they shall have been  rated
in  one  of the  four  highest rating  categories  by the  nationally recognized
statistical rating  agency  or  agencies specified  in  the  related  Prospectus
Supplement.
 
     Ratings  on mortgage  pass-through certificates  address the  likelihood of
receipt by certificateholders  of all distributions  on the underlying  mortgage
loans.  These ratings address  the structural, legal  and issuer-related aspects
associated with such certificates, the  nature of the underlying mortgage  loans
and  the credit quality of the credit  enhancer or guarantor, if any. Ratings on
mortgage pass-through  certificates  do  not represent  any  assessment  of  the
likelihood of principal prepayments by mortgagors or of the degree by which such
prepayments  might  differ  from  those  originally  anticipated.  As  a result,
certificateholders  might  suffer  a  lower  than  anticipated  yield,  and,  in
addition,  holders of stripped pass-through  certificates in extreme cases might
fail to recoup their underlying investments.
 
     A security rating is not a  recommendation to buy, sell or hold  securities
and may be subject to revision or withdrawal at any time by the assigning rating
organization.  Each  security rating  should be  evaluated independently  of any
other security rating.
 
                                       81


<PAGE>

<PAGE>
                             INDEX TO DEFINED TERMS
<TABLE>
<CAPTION>
                                                    PAGE
                                                    ----
<S>                                                 <C>
1986 Act.........................................    63
Accretion Directed Certificates..................    26
Accrual Certificates.............................    23
Accrual Class....................................    27
accrual period...................................    64
adjusted issue price.............................    60
Advance..........................................     9
Agency Securities................................     3
Agreement........................................     3
Applicable Amount................................    71
ARM Loans........................................    59
Available Funds..................................    23
balloon payments.................................     4
Bankruptcy Bonds.................................     9
beneficial owner.................................    31
Book-Entry Certificates..........................    30
Buydown Fund.....................................    12
Buydown Loans....................................    12
Calculation Agent................................    28
CERCLA...........................................    52
Certificate Account..............................    39
Certificate Balance..............................     7
Certificate Register.............................    22
Certificateholders...............................    11
Certificates.....................................     3
Class Certificate Balance........................    23
Closing Date.....................................     3
Code.............................................    10
COFI.............................................    28
COFI Certificates................................    29
Collateral Value.................................    12
Component Certificates...........................    26
Components.......................................    26
Contributions Tax................................    73
Cooperative Loans................................     3
Cooperatives.....................................     3
Cut-Off Date.....................................     9
D&P..............................................    78
Deferred Interest................................    60
Definitive Certificates..........................    31
Depositor........................................     3
Depository.......................................    30
Detailed Description.............................    11
Distribution Date................................     7
DOL..............................................    77
Eleventh District................................    28
EPA..............................................    52
ERISA............................................    10
excess servicing.................................    58
FHA..............................................     3
FHA Insurance....................................     9
FHA Loans........................................    13
 
<CAPTION>
                                                    PAGE
                                                    ----
<S>                                                 <C>
FHLBSF...........................................    28
FHLMC............................................     3
FHLMC Act........................................    15
FHLMC Certificate group..........................    15
FHLMC Certificates...............................     5
Financial Intermediary...........................    31
Fitch............................................    78
Fixed Rate Class.................................    27
Floating Rate Class..............................    27
FNMA.............................................     3
FNMA Certificates................................     5
Garn-St Germain Act..............................    53
GNMA.............................................     3
GNMA Certificates................................     5
GNMA I Certificate...............................    14
GNMA II Certificate..............................    14
GNMA Issuer......................................    14
Guaranty Agreement...............................    14
Guaranteed Mortgage Pass-Through Certificates....     5
Housing Act......................................    13
HUD..............................................    44
Insurance Proceeds...............................    39
Insured Expenses.................................    39
Interest Only Class..............................    27
Inverse Floating Rate Class......................    27
IRS..............................................    56
Issuer...........................................
Legislative History..............................    59
LIBOR............................................    28
LIBOR Determination Date.........................    25
Liquidated Mortgage..............................    45
Liquidation Expenses.............................    40
Liquidation Proceeds.............................    40
Loan-to-Value Ratio..............................    12
lockout periods..................................     4
Master REMIC.....................................    62
Master Servicer..................................     3
Master Servicing Fee.............................    45
Moody's..........................................    78
Mortgage.........................................    38
Mortgage Assets..................................     3
Mortgage Loans...................................     3
Mortgage Note....................................     4
Mortgage Pool....................................    11
Mortgage Pool Insurance Policy...................     9
Mortgage Rate....................................     4
Mortgaged Property...............................     3
Mortgagor........................................    12
National Cost of Funds Index.....................    29
NCUA.............................................    80
Notional Amount Certificates.....................    26
</TABLE>
 
                                       82
 
<PAGE>

<PAGE>
<TABLE>
<CAPTION>
                                                    PAGE
                                                    ----
<S>                                                 <C>
OID..............................................    55
OID Regulations..................................    63
OTS..............................................    29
Partial Accrual Class............................    27
Parties in Interest..............................    77
pass-through entity..............................    75
pass-through interest holder.....................    72
Pass-Through Rate................................     7
Payment Lag Certificates.........................    68
Percentage Interest..............................
Permitted Investments............................    35
Plans............................................    77
PMBS Agreement...................................    18
PMBS Issuer......................................     6
PMBS Servicer....................................     6
PMBS Trustee.....................................     6
Policy Statement.................................    80
Pool Insurer.....................................    33
pre-issuance accrued interest....................    68
Prepayment Assumption............................    59
Primary Insurer..................................    43
Primary Mortgage Insurance Policy................    11
Prime Rate.......................................    30
Principal Only Class.............................    27
Principal Prepayments............................    24
Private Mortgage-Backed Securities...............     3
Prohibited Transactions Tax......................    73
PTE 83-1.........................................    77
Purchase Price...................................    21
Rating Agency....................................    39
Record Date......................................    22
Reference Banks..................................    28
Regular Certificateholders.......................    63
Regular Certificates.............................    62
Relief Act.......................................    54
REMIC............................................    10
REMIC Certificates...............................    61
REMIC Regulations................................    55
Reserve Fund.....................................     8
<CAPTION>
                                                    PAGE
                                                    ----
<S>                                                 <C>
Reserve Interest Rate............................    28
Residual Certificateholder.......................    69
Residual Certificates............................    62
Retained Interest................................    21
S&P..............................................    78
Scheduled Principal Class........................    26
Seller...........................................     3
Senior Certificateholders........................     8
Senior Certificates..............................     6
Sequential Pay...................................    27
Series...........................................     3
Single Family Certificates.......................    77
SMMEA............................................    10
Special Hazard Insurance Policy..................     9
Special Hazard Insurer...........................    34
Strip............................................    27
Stripped ARM Obligations.........................    60
Stripped Bond Certificates.......................    58
Stripped Coupon Certificates.....................    58
Subordinated Certificateholders..................     8
Subordinated Certificates........................     6
Sub-Servicer.....................................     9
Subsidiary REMIC.................................    62
Super-Premium Certificates.......................    64
Support Class....................................    27
Targeted Principal Class.........................    27
Temporary Mark to Market Regulations.............    71
Title V..........................................    54
Treasury Index...................................    30
Trust Fund.......................................     3
Trustee..........................................     3
UCC..............................................    51
Underwriter Exemption............................    78
U.S. Person......................................    61
VA...............................................     4
VA Guaranty......................................     9
VA Loans.........................................    13
Variable Rate....................................    27
Voting Rights....................................    47
</TABLE>
 
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<PAGE>
_____________________________                      _____________________________
 
     NO  PERSON  HAS BEEN  AUTHORIZED TO  GIVE  ANY INFORMATION  OR TO  MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR  THE
PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON. THIS PROSPECTUS SUPPLEMENT AND THE PROSPECTUS DO NOT  CONSTITUTE
AN  OFFER TO SELL  OR A SOLICITATION  OF AN OFFER  TO BUY ANY  OF THE SECURITIES
OFFERED  HEREBY,  NOR  AN  OFFER  OF  OFFERED  CERTIFICATES  IN  ANY  STATE   OR
JURISDICTION  IN WHICH, OR TO ANY PERSON  TO WHOM, SUCH OFFER WOULD BE UNLAWFUL.
THE DELIVERY OF THIS  PROSPECTUS SUPPLEMENT OR THE  PROSPECTUS AT ANY TIME  DOES
NOT  IMPLY THAT THE INFORMATION CONTAINED HEREIN OR THEREIN IS CORRECT AS OF ANY
TIME SUBSEQUENT TO ITS DATE; HOWEVER,  IF ANY MATERIAL CHANGE OCCURS WHILE  THIS
PROSPECTUS  SUPPLEMENT OR  PROSPECTUS IS REQUIRED  BY LAW TO  BE DELIVERED, THIS
PROSPECTUS  SUPPLEMENT  OR  THE  PROSPECTUS  WILL  BE  AMENDED  OR  SUPPLEMENTED
ACCORDINGLY.
 
                         ------------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                               PAGE
                                                                                                                               ----
<S>                                                                                                                            <C>
                                                       PROSPECTUS SUPPLEMENT
 
Summary of Terms............................................................................................................   S-3
The Mortgage Pool...........................................................................................................   S-9
Servicing of Mortgage Loans.................................................................................................   S-15
Description of the Certificates.............................................................................................   S-18
Yield, Prepayment and Maturity Considerations...............................................................................   S-30
Credit Enhancement..........................................................................................................   S-39
Use of Proceeds.............................................................................................................   S-44
Certain Federal Income Tax Consequences.....................................................................................   S-44
ERISA Considerations........................................................................................................   S-46
Method of Distribution......................................................................................................   S-47
Experts.....................................................................................................................   S-48
Legal Matters...............................................................................................................   S-48
Ratings.....................................................................................................................   S-48
Principal Balance Schedules.................................................................................................   S-49
                                                            PROSPECTUS
 
Prospectus Supplement.......................................................................................................     2
Available Information.......................................................................................................     2
Incorporation of Certain Documents by Reference.............................................................................     2
Summary of Terms............................................................................................................     3
The Trust Fund..............................................................................................................    11
Use of Proceeds.............................................................................................................    19
The Depositor...............................................................................................................    19
Mortgage Loan Program.......................................................................................................    19
Description of the Certificates.............................................................................................    21
Credit Enhancement..........................................................................................................    32
Yield and Prepayment Considerations.........................................................................................    36
The Pooling and Servicing Agreement.........................................................................................    38
Certain Legal Aspects of the Mortgage Loans.................................................................................    48
Certain Federal Income Tax Consequences.....................................................................................    55
State Tax Considerations....................................................................................................    76
ERISA Considerations........................................................................................................    76
Legal Investment............................................................................................................    79
Method of Distribution......................................................................................................    80
Legal Matters...............................................................................................................    81
Financial Information.......................................................................................................    81
Rating......................................................................................................................    81
Index to Defined Terms......................................................................................................    82
</TABLE>
 
                                  $249,401,380
                                 (APPROXIMATE)



                                  CWMBS, INC.
                                   DEPOSITOR



                                     [LOGO]
                           SELLER AND MASTER SERVICER



                             MORTGAGE PASS-THROUGH
                                 CERTIFICATES,
                                 SERIES 1997-3



                   -----------------------------------------
                             PROSPECTUS SUPPLEMENT
                   -----------------------------------------



                          DONALDSON, LUFKIN & JENRETTE
                              SECURITIES CORPORATION

                           COUNTRYWIDE SECURITIES
                                CORPORATION


                               APRIL 25, 1997
 
_____________________________                      _____________________________










                              STATEMENT OF DIFFERENCES
                              ------------------------

The division symbol shall be expressed as ..................... [div]
The registered service mark symbol shall be expressed as ...... 's'




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