PRUDENTIAL HOME MORTGAGE SECURITIES COMPANY INC
424B5, 1996-04-23
MORTGAGE BANKERS & LOAN CORRESPONDENTS
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<PAGE>
SUPPLEMENT
(TO PROSPECTUS SUPPLEMENT DATED FEBRUARY 19, 1993 AND PROSPECTUS DATED FEBRUARY
5, 1993)
 
THE PRUDENTIAL HOME MORTGAGE SECURITIES COMPANY, INC. [LOGO]
 
                                     SELLER
 
               MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 1993-9
         PRINCIPAL AND INTEREST PAYABLE MONTHLY, COMMENCING IN MAY 1996
 
                    VARIABLE RATE(1) CLASS A-18 CERTIFICATES
                     (1) ON THE CLASS A-18 NOTIONAL AMOUNT
                              -------------------
 
    The  Series 1993-9  Mortgage Pass-Through  Certificates (the  "Series 1993-9
Certificates") are the Series 1993-9 Certificates described in the  accompanying
Prospectus  Supplement dated February 19, 1993 (the "Prospectus Supplement") and
the accompanying  Prospectus  dated February  5,  1993 (the  "Prospectus").  The
Series  1993-9 Certificates  consist of  one class  of senior  certificates (the
"Class A Certificates") and two classes of subordinated certificates (the "Class
M  Certificates"  and  "Class  B  Certificates,"  respectively).  The  Class   A
Certificates  consist of twenty subclasses  (each, a "Subclass") of Certificates
designated as 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 A-11, Class A-12, Class
A-13, Class A-14, Class A-15, Class A-16, Class A-17, Class A-18, Class A-R  and
Class  A-LR  Certificates. The  Class M  and  the Class  B Certificates  are not
divided into  subclasses. Only  the Class  A-18 Certificates  are being  offered
hereby.  The Series  1993-9 Certificates  evidence in  the aggregate  the entire
beneficial ownership interest in a  trust fund (the "Trust Estate")  established
by  The Prudential  Home Mortgage  Securities Company,  Inc. (the  "Seller") and
consisting of a pool  of fixed interest rate,  conventional, monthly pay,  fully
amortizing,  one-  to  four-family,  residential  first  mortgage  loans  having
original terms  to stated  maturity  of approximately  15 years  (the  "Mortgage
Loans"), together with certain related property. The Mortgage Loans are serviced
by  The Prudential Home Mortgage Company, Inc. (in its capacity as servicer, the
"Servicer," otherwise "PHMC").  See "Description of  the Mortgage Loans"  herein
and  in the Prospectus Supplement and  "Risk Factors and Special Considerations"
herein.
 
    PROSPECTIVE INVESTORS IN  THE CLASS  A-18 CERTIFICATES  SHOULD CONSIDER  THE
FACTORS DISCUSSED UNDER "RISK FACTORS AND SPECIAL CONSIDERATIONS" HEREIN ON PAGE
S1-3.
 
    The  credit  enhancement  for  the Series  1993-9  Certificates  is provided
through the  use of  a "shifting  interest" type  subordination, which  has  the
effect  of allocating all or a  disproportionate amount of principal prepayments
and other unscheduled receipts of principal  to the Class A Certificates for  at
least  nine  years  beginning  on  the  first  Distribution  Date.  See "Summary
Information--Credit Enhancement"  and "--Effects  of Prepayments  on  Investment
Expectations,"  "Description  of  the Certificates"  and  "Prepayment  and Yield
Considerations" in the Prospectus Supplement.
 
    THE YIELD  TO  MATURITY  OF  THE CLASS  A-18  CERTIFICATES  WILL  BE  HIGHLY
SENSITIVE  TO THE RATE AND TIMING  OF PRINCIPAL PAYMENTS (INCLUDING PREPAYMENTS)
ON THE  MORTGAGE  LOANS, WHICH  MAY  BE PREPAID  AT  ANY TIME  WITHOUT  PENALTY.
INVESTORS  SHOULD CONSIDER THE  ASSOCIATED RISKS THAT  A FASTER THAN ANTICIPATED
RATE OF  PRINCIPAL  PAYMENTS  (INCLUDING PREPAYMENTS)  ON  THE  MORTGAGE  LOANS,
PARTICULARLY  THOSE MORTGAGE LOANS WITH A  HIGHER RATE OF INTEREST, COULD RESULT
IN AN ACTUAL  YIELD THAT  IS LOWER  THAN ANTICIPATED AND  THAT A  RAPID RATE  OF
PAYMENTS  IN RESPECT  OF PRINCIPAL (INCLUDING  PREPAYMENTS) COULD  RESULT IN THE
FAILURE  OF  INVESTORS   TO  FULLY  RECOVER   THEIR  INITIAL  INVESTMENTS.   See
"Sensitivity  of the Pre-Tax Yield  and Weighted Average Life  of the Class A-18
Certificates" herein and "Description of the Certificates--Principal  (Including
Prepayments)"  and  "Prepayment  and  Yield  Considerations"  in  the Prospectus
Supplement and in the Prospectus.
 
                                                        (CONTINUED ON NEXT PAGE)
                             ---------------------
 
THESE SECURITIES DO NOT REPRESENT INTERESTS IN OR OBLIGATIONS OF THE PRUDENTIAL
HOME MORTGAGE SECURITIES COMPANY, INC. OR ANY AFFILIATE THEREOF. NEITHER THESE
        SECURITIES NOR THE UNDERLYING MORTGAGE LOANS WILL BE INSURED OR
          GUARANTEED BY ANY GOVERNMENTAL AGENCY OR INSTRUMENTALITY.
                             ---------------------
 
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  SUPPLEMENT,  THE  PROSPECTUS
       SUPPLEMENT OR THE  PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
                             IS A CRIMINAL OFFENSE.
                             ---------------------
 
    The Class A-18  Certificates are being  offered by PaineWebber  Incorporated
(the  "Underwriter") from time to time  to the public in negotiated transactions
or otherwise at varying prices to be determined at the time of sale. Proceeds to
the Seller from the  sale of the Class  A-18 Certificates will be  approximately
1.09% of the Pool Scheduled Principal Balance as of the Distribution Date in May
1996  without  giving effect  to partial  principal  prepayments or  net partial
liquidation proceeds received on or after the Determination Date in April  1996,
plus  accrued interest from April 1, 1996 to (but not including) April 26, 1996,
before deducting expenses  payable by the  Seller estimated to  be $45,000.  See
"Underwriting" herein.
 
    The Class A-18 Certificates are offered subject to receipt and acceptance by
the  Underwriter, to  prior sale  and to the  Underwriter's right  to reject any
order in whole or in  part and to withdraw, cancel  or modify the offer  without
notice. It is expected that delivery of the Class A-18 Certificates will be made
at  the office  of PaineWebber  Incorporated, 1285  Avenue of  the Americas, New
York, New York 10019, on or about April 26, 1996.
 
                             ---------------------
 
                            PAINEWEBBER INCORPORATED
                                  -----------
 
                 The date of this Supplement is April 22, 1996.
<PAGE>
(CONTINUED FROM PREVIOUS PAGE)
 
    The  Class  A-18  Certificates  may  not  be  appropriate  investments   for
individual  investors.  The  Class  A-18  Certificates  are  offered  in minimum
denominations of $134,222,000  initial Class A-18  Notional Amount as  described
herein under "Description of the Certificates." Except as set forth below, it is
intended  that the Class A-18 Certificates not be directly or indirectly held or
beneficially  owned  by  any   person  in  amounts   lower  than  such   minimum
denomination.  The  Class A-18  Certificates may  be  transferred to  persons in
amounts lower than the minimum denomination but only if any such person delivers
to the Trustee an affidavit concerning certain matters related to the  financial
sophistication   and  net  worth  of  such   person.  See  "Description  of  the
Certificates" and  "Restrictions on  Transfer of  the Class  A-18  Certificates"
herein.
 
    There  is currently no secondary market  for the Class A-18 Certificates and
there can be no assurance  that a secondary market will  develop or, if it  does
develop, that it will provide Certificateholders with liquidity of investment at
any  particular  time  or for  the  life  of the  Class  A-18  Certificates. The
Underwriter intends to  act as a  market maker in  the Class A-18  Certificates,
subject  to applicable provisions of federal and state securities laws and other
regulatory requirements, but is under no obligation to do so and any such market
making may be  discontinued at  any time.  There can  be no  assurance that  any
investor  will be able to sell  a Class A-18 Certificate at  a price equal to or
greater than the price at which such Certificate was purchased.
 
    Distributions in respect of interest and  of principal are made on the  25th
day  of each month,  or if such day  is not a business  day, the next succeeding
business day to the holders of record of the Class A-18 Certificates on the last
business day of the preceding month, to the extent that their allocable  portion
of  the Pool Distribution Amount (as  defined herein) is sufficient therefor. On
each Distribution Date (as  defined herein), to the  extent funds are  available
therefor,  the  amount of  interest  distributed in  respect  of the  Class A-18
Certificates will  equal  the interest  accrued  during the  applicable  Regular
Interest Accrual Period (as defined in the Prospectus Supplement). Interest will
accrue   during  each  Regular  Interest  Accrual   Period  on  the  Class  A-18
Certificates at  a per  annum rate  equal to  the weighted  average of  the  Net
Mortgage  Interest Rates  (as defined  herein) of the  Mortgage Loans  as of the
first day of  such period minus  7.50%, on  the Class A-18  Notional Amount  (as
defined  herein), less any  Non-Supported Interest Shortfall  (as defined in the
Prospectus Supplement) and other losses allocable to the Class A-18 Certificates
as  described  in   the  Prospectus   Supplement  under   "Description  of   the
Certificates--Interest."  The Class  A Subclass  Principal Balance  of the Class
A-18  Certificates  as  of  the  Determination  Date  in  April  1996  will   be
approximately   $382.  The  Class  A  Subclass   Principal  Balance  as  of  the
Determination Date  in  May  1996 will  be  equal  to such  balance  as  of  the
Determination  Date in April 1996 reduced by  the amount of any distributions or
other  reductions  of  principal  on  the  Distribution  Date  in  April   1996.
Distributions  in reduction of the principal balance of the Class A Certificates
will be made monthly on each Distribution  Date in an aggregate amount equal  to
the  Class  A  Principal  Distribution  Amount  (as  defined  in  the Prospectus
Supplement). Distributions in reduction of the principal balance of the Class  A
Certificates  each  month will  be  allocated among  the  Subclasses of  Class A
Certificates  in  the  manner  described  in  the  Prospectus  Supplement  under
"Description    of   the   Certificates--Principal   (Including   Prepayments)."
Distributions on  the  Class A-18  Certificates  will  be made  pro  rata  among
Certificateholders  of  such Subclass  based on  their Percentage  Interests (as
defined in the Prospectus Supplement).
 
    This Supplement does  not contain complete  information regarding the  Class
A-18  Certificates and  should be read  only in conjunction  with the Prospectus
Supplement and the Prospectus. Sales of  the Class A-18 Certificates may not  be
consummated  unless the purchaser  has received this  Supplement, the Prospectus
Supplement and  the  Prospectus. Capitalized  terms  used herein  that  are  not
otherwise  defined shall  have the meanings  ascribed thereto  in the Prospectus
Supplement or the Prospectus, as applicable.
                              -------------------
 
    UNTIL JULY 23, 1996,  ALL DEALERS EFFECTING TRANSACTIONS  IN THE CLASS  A-18
CERTIFICATES, WHETHER OR NOT PARTICIPATING IN THIS DISTRIBUTION, MAY BE REQUIRED
TO  DELIVER THIS SUPPLEMENT, THE PROSPECTUS  SUPPLEMENT AND THE PROSPECTUS. THIS
IS IN ADDITION  TO THE  OBLIGATION OF DEALERS  TO DELIVER  THIS SUPPLEMENT,  THE
PROSPECTUS  SUPPLEMENT AND THE  PROSPECTUS WHEN ACTING  AS UNDERWRITERS AND WITH
RESPECT TO THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
 
                                      S1-2
<PAGE>
                                    GENERAL
 
    The  following is  qualified in  its entirety  by reference  to the detailed
information appearing in the Prospectus  Supplement and in the Prospectus,  each
of  which should be read in  conjunction with this Supplement. Capitalized terms
used in  this Supplement  and not  otherwise defined  herein have  the  meanings
assigned  in  the Prospectus  Supplement  or in  the  Prospectus. See  "Index of
Significant Prospectus Supplement Definitions" in the Prospectus Supplement  and
"Index of Significant Definitions" in the Prospectus.
 
    The  Series 1993-9 Certificates were issued  on February 26, 1993. The Class
A-18 Certificates were not offered to the public at the time of the issuance  of
the Series 1993-9 Certificates.
 
                    RISK FACTORS AND SPECIAL CONSIDERATIONS
 
YIELD CONSIDERATIONS
 
    The  yield  to maturity  of  the Class  A-18  Certificates will  be directly
related to the rate of payments of principal on the Mortgage Loans in the  Trust
Estate,  particularly with respect to those  Mortgage Loans with higher rates of
interest. The rate of principal payments on  the Mortgage Loans will in turn  be
affected  by  the amortization  schedules  of the  Mortgage  Loans, the  rate of
principal prepayments (including  partial prepayments and  those resulting  from
refinancing)  thereon by  mortgagors, liquidations of  defaulted Mortgage Loans,
repurchases  by  the  Seller  of  Mortgage  Loans  as  a  result  of   defective
documentation or breaches of representations and warranties, optional repurchase
by  the Seller of defaulted Mortgage Loans and optional purchase by the Servicer
of all of the  Mortgage Loans in  connection with the  termination of the  Trust
Estate. See "Description of the Mortgage Loans--Optional Repurchase of Defaulted
Mortgage  Loans" and "Pooling and  Servicing Agreement--Optional Termination" in
the Prospectus Supplement and "The Trust Estates--Mortgage Loans--Assignment  of
Mortgage  Loans to the  Trustee," "--Optional Repurchases"  and "The Pooling and
Servicing Agreement--Termination; Purchase of Mortgage Loans" in the Prospectus.
Mortgagors are permitted to prepay the Mortgage  Loans, in whole or in part,  at
any time without penalty.
 
    The  rate of payments (including prepayments)  on pools of mortgage loans is
influenced by a variety  of economic, geographic, social  and other factors.  If
prevailing  rates for  similar mortgage loans  fall below  the Mortgage Interest
Rates on the Mortgage Loans, the rate of prepayment would generally be  expected
to  increase. Conversely, if interest rates on similar mortgage loans rise above
the Mortgage Interest Rates on the Mortgage Loans, the rate of prepayment  would
generally be expected to decrease.
 
    The  yield to maturity on the Class A-18 Certificates may be affected by the
geographic concentration  of  the  Mortgaged Properties  securing  the  Mortgage
Loans.  As  of March  15, 1996,  Mortgaged Properties  located in  the following
states secured at least 5.00% of  the Aggregate Unpaid Principal Balance of  the
Mortgage  Loans: California (44.74%), New York  (16.03%), New Jersey (6.90%) and
Florida (5.50%). In recent  years, California and several  other regions in  the
United  States  have  experienced  significant declines  in  housing  prices. In
addition, California, as well as certain other regions, has experienced  natural
disasters,  including earthquakes, hurricanes and  flooding, which may adversely
affect property values. Any direct damage to the Mortgaged Properties caused  by
such  disasters, deterioration in housing prices  in California (and to a lesser
extent the other states  in which the Mortgaged  Properties are located) or  the
deterioration of economic conditions in such regions which adversely affects the
ability  of borrowers to  make payments on  the Mortgage Loans  may increase the
likelihood of losses  on the  Mortgage Loans. Such  losses, if  they occur,  may
increase  the  likelihood  of liquidations  and  prepayments which  may  have an
adverse effect on  the yield  to maturity of  the Class  A-18 Certificates.  See
"Description of the Mortgage Loans" herein.
 
    AN INVESTOR THAT PURCHASES CLASS A-18 CERTIFICATES, WHICH ARE EXPECTED TO BE
OFFERED  AT A SUBSTANTIAL PREMIUM,  SHOULD CONSIDER THE RISK  THAT A FASTER THAN
ANTICIPATED RATE OF PRINCIPAL PAYMENTS ON  THE MORTGAGE LOANS WILL RESULT IN  AN
ACTUAL YIELD THAT IS LOWER THAN SUCH INVESTOR'S EXPECTED YIELD AND MAY RESULT IN
THE  FAILURE  OF SUCH  INVESTOR  TO FULLY  RECOVER  ITS INITIAL  INVESTMENT. See
"Sensitivity of the Pre-Tax  Yield and Weighted Average  Life of the Class  A-18
Certificates" herein and "Prepayment and Yield Considerations" in the Prospectus
Supplement.
 
                                      S1-3
<PAGE>
RECENT DEVELOPMENTS AFFECTING THE SELLER AND SERVICER
 
    The  Seller and the  Servicer are each  either a direct  or indirect, wholly
owned subsidiary  of Residential  Services Corporation  of America,  which is  a
direct,  wholly owned subsidiary of The Prudential Insurance Company of America,
a mutual insurance company organized under the  laws of the State of New  Jersey
("Prudential  Insurance"). On  January 29, 1996,  Prudential Insurance announced
that it had entered into a definitive agreement (the "Sale Agreement") to sell a
substantial portion of its residential mortgage operations to Norwest  Mortgage,
Inc.,  a California corporation ("Norwest Mortgage"), and Norwest Bank Minnesota
National Association,  a  national  banking  association  ("Norwest  Bank"  and,
collectively  with Norwest Mortgage, "Norwest"). In connection therewith, on the
closing date specified pursuant to the  Sale Agreement (the "Sale Date"),  which
is  currently expected to be  on or about April  30, 1996, Norwest Mortgage will
acquire from the Servicer substantially all of its assets and businesses,  other
than  certain mortgage loans and the  Servicer's right to service mortgage loans
underlying series of mortgage  pass-through certificates representing  interests
in trusts formed by the Seller or by Securitized Asset Sales, Inc., an affiliate
of  the Seller and  the Servicer ("SASI"),  including the Mortgage  Loans in the
Trust Estate, and certain  other mortgage servicing  rights (all such  servicing
rights  collectively, the "Retained Servicing"). It  is the present intention of
the Servicer  to  sell the  Retained  Servicing, from  time  to time  as  market
conditions warrant, in one or more transactions to one or more purchasers, which
may  include  Norwest  Mortgage,  and  to  effectively  exit  the  mortgage loan
origination and servicing business as of the Sale Date.
 
    In order to assure the performance of the Servicer's obligations as servicer
under the Pooling  and Servicing Agreement  as well as  under other pooling  and
servicing  agreements pursuant to which various  series of the Seller's mortgage
pass-through certificates were issued and other agreements pursuant to which the
Servicer performs Retained Servicing with  respect to mortgage loans  underlying
series  of mortgage  pass-through certificates representing  interests in trusts
formed by the  Seller or  SASI (each, a  "Servicing Agreement")  and under  each
other  agreement pursuant to which the Servicer performs Retained Servicing with
respect to  mortgage  loans  not  underlying  series  of  mortgage  pass-through
certificates  representing  interests in  trusts formed  by  the Seller  or SASI
(each, an "Other Servicing Agreement"),  the Servicer, Prudential Insurance  and
Norwest intend to enter into the following arrangements:
 
    1.   SUBSERVICING AGREEMENT.  The Servicer, Prudential Insurance and Norwest
Mortgage  will   enter  into   a  subservicing   agreement  (the   "Subservicing
Agreement"),  pursuant to which the Servicer  will delegate to Norwest Mortgage,
and Norwest Mortgage  will agree to  perform, all of  the Servicer's duties  and
obligations  as mortgage loan servicer under the Pooling and Servicing Agreement
and each  Servicing Agreement  and  Other Servicing  Agreement, other  than  the
Servicer's  duties with  respect to the  administration and  disposition of real
estate  acquired  upon  foreclosure,  which   latter  duties  will  remain   the
responsibility  of the Servicer with the particular functions to be delegated by
the Servicer to Prudential Asset Recovery, Inc., an affiliate of the Seller, the
Servicer, SASI and Prudential Insurance, or other third party contractors.  With
respect  to the  Series 1993-9 Certificates,  such duties  include collection of
mortgage payments,  maintenance  of tax  and  insurance escrows,  advancing  for
borrower  delinquencies and unpaid taxes, to  the extent required by the Pooling
and Servicing  Agreement, and  foreclosure or  other realization  activities  in
connection with defaulted Mortgage Loans.
 
    Under the Subservicing Agreement, Norwest Mortgage will be obligated to make
any principal and interest or other advances required to be made by the Servicer
under  the  Pooling and  Servicing  Agreement as  well  as under  each Servicing
Agreement or Other Servicing Agreement, provided that the aggregate unreimbursed
amount of such advances at any time  does not exceed $100 million. The  Servicer
will  be obligated  to reimburse  Norwest Mortgage  for the  amount of  any such
advances, plus interest, from its own funds. The Servicer will remain  obligated
under the Pooling and Servicing Agreement and each Servicing Agreement and Other
Servicing  Agreement for  all required  advances which  are not  made by Norwest
Mortgage for any reason. In order to provide for its obligation to make advances
after the  Sale  Date,  the Servicer  will  enter  into a  Loan  Agreement  with
Prudential  Funding Corporation, an affiliate of  the Seller, the Servicer, SASI
and Prudential Insurance ("Funding"), pursuant to which Funding will provide the
Servicer with a committed borrowing line (the "Loan Facility") in the amount  of
$40 million for the sole purpose of supporting advances required of the Servicer
under the Pooling and Servicing Agreement and Servicing Agreements. Although the
Servicer   expects   that  the   combination   of  Norwest   Mortgage's  advance
 
                                      S1-4
<PAGE>
obligation under  the  Subservicing Agreement  and  the Loan  Facility  will  be
adequate  to provide for the continuation of  all such advances, there can be no
assurance that such mechanisms will be  sufficient, or that after the Sale  Date
the  Servicer will  have sufficient  other assets,  to ensure  that all required
advances will be made.
 
    The Servicer will pay Norwest Mortgage a portion of the Servicer's servicing
compensation under the  Pooling and  Servicing Agreement for  its activities  as
subservicer.  The Subservicing Agreement will have an initial term of five years
from the Sale Date and may be  extended for consecutive three year terms by  the
Servicer,  at its option, provided that the Servicer and Norwest Mortgage agree,
in the exercise of  good faith, on the  subservicing compensation for each  such
renewal  term. The  Subservicing Agreement will  be terminable  by the Servicer,
from time to time, with respect to  any Mortgage Loans as to which the  Servicer
arranges to sell the Retained Servicing.
 
    2.   CERTIFICATE  ADMINISTRATION AGREEMENT.   The Servicer  and Norwest Bank
will enter  into  an  agreement (the  "Certificate  Administration  Agreement"),
pursuant  to which the Servicer will delegate  to Norwest Bank, and Norwest Bank
will agree  to  perform, all  of  the  Servicer's obligations  with  respect  to
administrative   and  reporting  functions  under   the  Pooling  and  Servicing
Agreement. Such  duties include  calculation of  distributions, preparation  and
filing  of tax returns, preparation of  reports to investors and preparation and
filing of  periodic  reports under  the  Securities  Exchange Act  of  1934,  as
amended.
 
    The Subservicing Agreement and the Certificate Administration Agreement will
collectively  provide for the delegation of  substantially all of the Servicer's
duties and  obligations under  the Pooling  and Servicing  Agreement. While  the
Pooling  and Servicing Agreement  provides that the  Servicer will remain liable
for  its  obligations  thereunder  until  the  related  Retained  Servicing   is
transferred  in the manner permitted  thereby, from and after  the Sale Date the
Servicer is not  expected to  have any  servicing capability  or employees  with
which to perform such obligations.
 
    Under  the Pooling  and Servicing  Agreement, the  Seller is  required, with
respect to any Mortgage Loan found to have defective documentation or in respect
of which  the  Seller has  breached  a  representation or  warranty,  either  to
repurchase  such Mortgage  Loan or to  substitute a new  mortgage loan therefor.
Each such Mortgage Loan was, in turn,  acquired by the Seller from the  Servicer
pursuant  to an agreement under which the  Servicer is required to repurchase or
substitute for any such Mortgage Loan  so repurchased or substituted for by  the
Seller.  Although after  the Sale  Date the  Servicer will  continue to  own the
Retained Servicing,  the Servicer  intends  to sell  the Retained  Servicing  as
expeditiously  as  market  conditions  permit.  Accordingly,  there  can  be  no
assurance that  at any  time after  the Sale  Date the  Servicer will  have  any
material  assets with which to  satisfy such obligations to  the Seller. In such
event, the Seller  would be  unable to  fulfill its  repurchase or  substitution
obligations  under the Pooling and Servicing  Agreement. However with respect to
any Mortgage Loan subserviced pursuant to the Subservicing Agreement, Prudential
Insurance will  agree in  the Subservicing  Agreement to  provide the  funds  to
repurchase such Mortgage Loan.
 
    According to information provided by Norwest Mortgage, at December 31, 1995,
Norwest  Mortgage  was  the  nation's  largest  mortgage  originator  and  had a
servicing portfolio  of  more  than  $107 billion.  In  1995,  Norwest  Mortgage
originated  over $33 billion of residential mortgage loans. Headquartered in Des
Moines, Iowa, Norwest Mortgage has more than 700 loan production offices in  all
50  states.  While derived  from sources  believed to  be reliable,  neither the
Seller, the Servicer nor  the Underwriter makes  any representation or  warranty
regarding  the accuracy  or completeness  of the  information contained  in this
paragraph.
 
                                      S1-5
<PAGE>
                        DESCRIPTION OF THE CERTIFICATES
 
    The  Class  A-18   Certificates  will  be   offered  in  fully   registered,
certificated  form in minimum  denominations of $134,222,000  initial Class A-18
Notional Amount;  provided, however,  that the  Class A-18  Certificates may  be
issued in minimum denominations of $5,671,000 initial Class A-18 Notional Amount
to  persons who deliver  to the Trustee  an affidavit stating  that such person:
(a)(i) is a substantial, sophisticated, institutional investor having  knowledge
and  experience in  financial and  business matters,  and in  particular in such
matters related to securities similar to the Class A-18 Certificates, such  that
such  investor is capable of evaluating the merits and risks of an investment in
the Class A-18 Certificates, and (ii) has  a net worth of at least  $10,000,000;
or  (b) will  hold the Class  A-18 Certificates  solely as nominee  for a person
meeting the criteria set forth in clause (a). The Class A-18 Certificates may be
issued in any amounts in excess of  any such minimum denominations. The Class  A
Subclass   Principal  Balance  of   the  Class  A-18   Certificates  as  of  the
Determination Date  in  April 1996  will  be  approximately $382.  The  Class  A
Subclass   Principal  Balance  of   the  Class  A-18   Certificates  as  of  the
Determination Date  in  May  1996 will  be  equal  to such  balance  as  of  the
Determination Date in April 1996 reduced by the amount of distributions or other
reductions of principal on the Distribution Date in April 1996.
 
    Distributions  of interest and in reduction  of principal balance to holders
of Class A-18 Certificates will be made monthly, to the extent of such Subclass'
entitlement thereto, on  the 25th day  of each month  or, if such  day is not  a
business  day, on  the succeeding  business day  (each, a  "Distribution Date"),
beginning in May 1996.
 
    Distributions (other than the final distribution in retirement of the  Class
A-18  Certificates, as described  in the Prospectus Supplement)  will be made by
check mailed to the address of the person entitled thereto as it appears on  the
Certificate  Register.  However,  with  respect  to  any  holder  of  Class A-18
Certificates evidencing at least a  25% Percentage Interest, distributions  will
be  made  on the  Distribution Date  by wire  transfer in  immediately available
funds, provided that the Servicer, or the  paying agent acting on behalf of  the
Servicer,  shall have  been furnished  with appropriate  wiring instructions not
less than seven business days prior to the related Distribution Date.
 
    The Class A-18 Certificates will be entitled to a distribution in respect of
interest accrued during each Regular Interest Accrual Period in an amount up  to
such  Subclass' Class A  Subclass Interest Accrual Amount.  The Class A Subclass
Interest Accrual Amount for the Class  A-18 Certificates will equal the  product
of  (i) 1/12th  of the difference  between (a)  the weighted average  of the Net
Mortgage Interest Rates of the Mortgage Loans (based on the Scheduled  Principal
Balances  of the Mortgage Loans as of  such Distribution Date) and (b) 7.50% and
(ii) the Class A-18 Notional Amount.
 
    The Class A Subclass Interest Accrual Amount for the Class A-18 Certificates
will be  reduced by  the portion  of (i)  any Non-Supported  Interest  Shortfall
allocable  to  such Subclass  and (ii)  the interest  portion of  Excess Special
Hazard Losses, Excess  Fraud Losses  and Excess Bankruptcy  Losses allocable  to
such  Subclass as described under "Description of the Certificates--Interest" in
the Prospectus Supplement.
 
    The "Net  Mortgage Interest  Rate" on  each Mortgage  Loan is  equal to  the
Mortgage  Interest Rate on such Mortgage Loan  as stated in the related Mortgage
Note minus the Servicing Fee rate of 0.20% per annum. See "Pooling and Servicing
Agreement--Servicing Compensation  and Payment  of Expenses"  in the  Prospectus
Supplement.
 
    The "Class A-18 Notional Amount" with respect to each Distribution Date will
be  equal to the Pool Scheduled Principal Balance, as defined under "Description
of  the  Certificates--Principal  (Including  Prepayments)"  in  the  Prospectus
Supplement,  as of such  Distribution Date. The Class  A-18 Notional Amount with
respect to the Distribution Date  in March 1996 was approximately  $166,111,839.
The Class A-18 Notional Amount with respect to the Distribution Date in May 1996
will be equal to the Class A-18 Notional Amount with respect to the Distribution
Date  in March  1996, less the  difference between the  Pool Scheduled Principal
Balance with  respect  to the  Distribution  Date in  March  1996 and  the  Pool
Scheduled Principal Balance with respect to the Distribution Date in May 1996. A
notional  amount does not entitle a holder to receive distributions of principal
on the basis  of such notional  amount, but is  solely used for  the purpose  of
computing  the amount of interest accrued on  a Subclass. The initial Class A-18
Notional Amount was approximately $402,667,771.
 
    As described under "Pooling  and Servicing Agreement--Optional  Termination"
in  the Prospectus Supplement, the Servicer has  the right, but is not required,
to purchase from the Trust Estate all remaining Mortgage
 
                                      S1-6
<PAGE>
Loans, and thereby effect early retirement of the Series 1993-9 Certificates, on
any Distribution Date when the Pool Scheduled Principal Balance is less than 10%
of the Cut-Off Date  Aggregate Principal Balance (as  defined in the  Prospectus
Supplement). However, the Servicer will agree that for so long as the Class A-18
Certificates  are  outstanding,  without  the  consent  of  holders  of  66 2/3%
Percentage Interest  of  the Class  A-18  Certificates, the  Servicer  will  not
exercise  such right unless the Pool Scheduled Principal Balance of the Mortgage
Loans is  equal to  or less  than 1%  of the  Cut-Off Date  Aggregate  Principal
Balance.
 
    The  Prospectus Supplement and the Prospectus contain significant additional
information concerning  the  characteristics  of the  Class  A-18  Certificates.
Investors  are urged to read "Description of the Certificates" in the Prospectus
Supplement and in the Prospectus.
 
                                      S1-7
<PAGE>
                       DESCRIPTION OF THE MORTGAGE LOANS
 
    As  of March 15, 1996,  the Mortgage Loans in  the Trust Estate consisted of
fixed interest  rate,  conventional,  monthly pay,  fully  amortizing,  one-  to
four-family, residential first mortgage loans originated or acquired by PHMC for
its  own account  or for the  account of  an affiliate having  original terms to
stated maturity of approximately 15 years.  The "Unpaid Principal Balance" of  a
Mortgage  Loan as of March  15, 1996 is its unpaid  principal balance as of such
date assuming no delinquencies and no prepayments in full. As of March 15, 1996,
the Mortgage Loans  included 832  promissory notes, having  an aggregate  Unpaid
Principal  Balance (the  "Aggregate Unpaid Principal  Balance") of approximately
$163,124,715, secured by first  liens (the "Mortgages")  on one- to  four-family
residential  properties (the "Mortgaged Properties"). As of March 15, 1996, five
such  Mortgage  Loans   having  an   aggregate  Unpaid   Principal  Balance   of
approximately  $929,724 have prepaid  in full. Prepayments  in full occurring in
March 1996  will reduce  the Class  A-18  Notional Amount  with respect  to  the
Distribution   Date  in  May  1996.  The  Mortgage  Loans  have  the  additional
characteristics described below and in the Prospectus.
 
    No Mortgage Loan is a Buy-Down Loan. See "The Trust Estates--Mortgage Loans"
in the Prospectus.  As of  March 15,  1996, eight  Mortgage Loans,  representing
approximately  1.02% of the Aggregate  Unpaid Principal Balance, were Relocation
Mortgage Loans. See "PHMC--Mortgage Loan Production Sources" in the Prospectus.
 
    Each of the Mortgage Loans is subject to a due-on-sale clause. See  "Certain
Legal Aspects of the Mortgage Loans--'Due-on-Sale' Clause" and "Servicing of the
Mortgage  Loans--Enforcement of Due-on-Sale  Clauses; Realization Upon Defaulted
Mortgage Loans" in the Prospectus.
 
    As of March 15, 1996, each Mortgage Loan had an Unpaid Principal Balance  of
not  less than $11,097 or  more than $869,444, and  the average Unpaid Principal
Balance of  the Mortgage  Loans was  approximately $196,063.  The latest  stated
maturity date of any of the Mortgage Loans was July 1, 2008; however, the actual
date  on which any Mortgage Loan is paid  in full may be earlier than the stated
maturity date due  to unscheduled  payments of principal.  Based on  information
supplied  by  the  mortgagors  in connection  with  their  loan  applications at
origination, 783 of the Mortgaged Properties, which secure approximately  95.03%
of  the Aggregate  Unpaid Principal  Balance of  the Mortgage  Loans, were owner
occupied primary residences  and 49  of the Mortgaged  Properties, which  secure
approximately  4.97% of the  Aggregate Unpaid Principal  Balance of the Mortgage
Loans, were  non-owner  occupied  or  second  homes.  See  "PHMC--Mortgage  Loan
Underwriting" in the Prospectus.
 
    As  of March 15, 1996, two of the Mortgage Loans, representing approximately
0.26% of the  Aggregate Unpaid  Principal Balance  of the  Mortgage Loans,  were
Subsidy  Loans. See "The Trust Estates--Mortgage Loans" and "PHMC--Mortgage Loan
Underwriting" in the Prospectus.
 
                                      S1-8
<PAGE>
    Set forth below is  a description of  certain additional characteristics  of
the Mortgage Loans as of March 15, 1996 (except as otherwise indicated).
 
                            MORTGAGE INTEREST RATES
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
MORTGAGE INTEREST RATE                      LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
7.750%..................................       87     $ 19,291,071.27       11.83   %
7.875%..................................       97       21,421,708.17       13.13
7.900%..................................        1           50,695.52        0.03
8.000%..................................       96       19,968,445.35       12.24
8.125%..................................       69       13,458,620.65        8.25
8.250%..................................      138       25,048,308.68       15.36
8.375%..................................      143       28,535,462.84       17.50
8.500%..................................       99       18,365,567.45       11.26
8.625%..................................       67       12,492,415.38        7.66
8.750%..................................       22        2,454,867.76        1.50
8.875%..................................        8        1,296,648.75        0.79
9.000%..................................        2          398,559.62        0.24
9.125%..................................        1          126,462.54        0.08
9.375%..................................        1           33,038.51        0.02
9.875%..................................        1          182,842.66        0.11
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
As  of  March 15,  1996,  the weighted  average  Mortgage Interest  Rate  of the
Mortgage Loans was  approximately 8.196%  per annum. The  Net Mortgage  Interest
Rate  of  each Mortgage  Loan is  equal to  the Mortgage  Interest Rate  of such
Mortgage Loan minus the Servicing Fee rate  of 0.20% per annum. As of March  15,
1996,  the weighted average Net Mortgage Interest Rate of the Mortgage Loans was
approximately 7.996% per annum.
 
                      REMAINING MONTHS TO STATED MATURITY
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
REMAINING STATED TERM (MONTHS)              LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
125.....................................        1     $    182,842.66     0.11   %
133.....................................        2          249,091.15     0.15
135.....................................        2          225,486.55     0.14
136.....................................        5          653,430.57     0.40
137.....................................        6          923,658.19     0.57
138.....................................       10        1,845,093.76     1.13
139.....................................       33        7,286,956.00     4.47
140.....................................       54       10,979,234.49     6.73
141.....................................      215       43,309,900.22    26.55
142.....................................      363       69,910,361.29    42.85
143.....................................      139       27,040,629.38    16.58
147.....................................        1          223,678.98     0.14
148.....................................        1          294,351.91     0.18
                                              ---     ---------------  -------
        Total...........................      832     $163,124,715.15   100.00   %
                                              ---     ---------------  -------
                                              ---     ---------------  -------
</TABLE>
 
As of March 15, 1996, the weighted average remaining term to stated maturity  of
the Mortgage Loans was approximately 142 months.
 
                                      S1-9
<PAGE>
                              YEAR OF ORIGINATION
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
YEAR OF ORIGINATION                         LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
1991....................................        2     $    428,368.16     0.26   %
1992....................................      719      141,671,070.67    86.85
1993....................................      111       21,025,276.32    12.89
                                              ---     ---------------  -------
        Total...........................      832     $163,124,715.15   100.00   %
                                              ---     ---------------  -------
                                              ---     ---------------  -------
</TABLE>
 
As  of March 15, 1996 the earliest month and year of origination of any Mortgage
Loan was July 1991 and the latest month and year of origination of any  Mortgage
Loan was January 1993.
 
                         ORIGINAL LOAN-TO-VALUE RATIOS
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
ORIGINAL LOAN-TO-VALUE RATIO                LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
50.0% or less...........................      141     $ 23,412,214.20       14.35   %
50.1-55.0%..............................       35        6,292,239.49        3.86
55.1-60.0%..............................       58       11,327,452.19        6.94
60.1-65.0%..............................       64       12,162,349.97        7.46
65.1-70.0%..............................       88       20,609,635.65       12.63
70.1-75.0%..............................      208       41,150,322.60       25.23
75.1-80.0%..............................      201       40,183,073.83       24.63
80.1-85.0%..............................        7        1,510,176.93        0.93
85.1-90.0%..............................       30        6,477,250.29        3.97
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
As of March 15, 1996 the minimum and maximum Loan-to-Value Ratios at origination
of  the  Mortgage Loans  were 13.1%  and 90.0%,  respectively, and  the weighted
average  Loan-to-Value  Ratio   at  origination  of   the  Mortgage  Loans   was
approximately  67.3%. The Loan-to-Value  Ratio of a  Mortgage Loan is calculated
using the lesser of (i) the  appraised value of the related Mortgaged  Property,
as  established by an appraisal obtained by  the originator from an appraiser at
the time of  origination and  (ii) the  sale price  for such  property. In  some
instances,  the  Loan-to-Value  Ratio may  be  based  on an  appraisal  that was
obtained by the originator more than four months prior to origination,  provided
that  (i) a recertification of  the original appraisal is  obtained and (ii) the
original appraisal was obtained no more than twelve months prior to origination.
For the purpose of calculating the Loan-to-Value Ratio of any Mortgage Loan that
is the result of the refinancing (including a refinancing for "equity  take-out"
purposes)  of  an existing  mortgage loan,  the appraised  value of  the related
Mortgaged Property is generally determined by reference to an appraisal obtained
in connection  with the  origination of  the replacement  loan. See  "The  Trust
Estates--Mortgage  Loans" in the  Prospectus. As of  March 15, 1996,  ten of the
Mortgage Loans  having Loan-to-Value  Ratios at  origination in  excess of  80%,
representing  approximately 1.31% of  the Aggregate Unpaid  Principal Balance of
the Mortgage  Loans, were  originated without  primary mortgage  insurance.  See
"PHMC--Mortgage Loan Underwriting" in the Prospectus.
 
                                     S1-10
<PAGE>
                       MORTGAGE LOAN DOCUMENTATION LEVELS
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
DOCUMENTATION LEVEL                         LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
Full Documentation......................      340     $ 87,932,123.83       53.91   %
Asset & Income Verification.............        0                0.00        0.00
Asset & Mortgage Verification...........      300       46,703,582.96       28.63
Income & Mortgage Verification..........       14        3,372,608.63        2.07
Asset Verification......................       83       10,313,453.78        6.32
Mortgage Verification...................       47        8,700,827.00        5.33
Preferred Processing....................       48        6,102,118.95        3.74
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
Documentation levels vary depending upon several factors, including loan amount,
Loan-to-Value Ratio and the type and purpose of the Mortgage Loan. Asset, income
and mortgage verifications were obtained for Mortgage Loans processed with "full
documentation." In the case of "preferred processing," neither asset, income nor
mortgage  verifications were obtained.  However, for all  of the Mortgage Loans,
verification of the borrower's employment, a credit report on the borrower and a
property appraisal were obtained. See "PHMC--Mortgage Loan Underwriting" in  the
Prospectus.
 
                   ORIGINAL MORTGAGE LOAN PRINCIPAL BALANCES
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                ORIGINAL                  NUMBER OF       UNPAID           UNPAID
             MORTGAGE LOAN                MORTGAGE       PRINCIPAL       PRINCIPAL
           PRINCIPAL BALANCE                LOANS         BALANCE         BALANCE
          --------------------            ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
Less than or equal to $200,000..........      322     $ 31,044,990.30       19.03   %
$200,001-$250,000.......................      185       36,941,650.58       22.65
$250,001-$300,000.......................      160       37,354,235.33       22.90
$300,001-$350,000.......................       71       19,623,717.25       12.03
$350,001-$400,000.......................       40       13,043,279.06        8.00
$400,001-$450,000.......................       18        6,369,586.02        3.90
$450,001-$500,000.......................       11        4,611,587.94        2.83
$500,001-$550,000.......................       10        4,586,881.54        2.81
$550,001-$600,000.......................        5        2,487,395.33        1.52
$600,001-$650,000.......................        1          567,430.89        0.35
$650,001-$700,000.......................        1          581,146.26        0.36
$750,001-$800,000.......................        1          674,782.57        0.41
$800,001-$850,000.......................        3        2,087,110.61        1.28
$850,001-$900,000.......................        3        2,281,477.65        1.40
$950,001-$1,000,000.....................        1          869,443.82        0.53
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
As of March 15, 1996, the average Unpaid Principal Balance of the Mortgage Loans
was  approximately  $196,063.  As  of  March  15,  1996,  the  weighted  average
Loan-to-Value Ratio  at  origination  and the  maximum  Loan-to-Value  Ratio  at
origination  of  the Mortgage  Loans which  had  original principal  balances in
excess of $600,000 were  approximately 63.9% and  70.0%, respectively. See  "The
Trust  Estates--Mortgage Loans"  and "PHMC--Mortgage  Loan Underwriting"  in the
Prospectus.
 
                                     S1-11
<PAGE>
                              MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
PROPERTY                                    LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
Single-family detached..................      783     $155,849,048.85       95.54   %
Two- to four-family units...............        4        1,186,414.15        0.73
Condominiums............................       43        5,722,794.16        3.51
Townhouses..............................        1          281,453.01        0.17
Cooperative units.......................        0                0.00        0.00
Planned Unit Developments...............        1           85,004.98        0.05
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
                                     S1-12
<PAGE>
                GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
GEOGRAPHIC AREA                             LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
Alabama.................................        4     $    491,594.04        0.30   %
Arizona.................................        4          890,578.25        0.55
Arkansas................................        2          413,243.42        0.25
California..............................      296       73,013,464.14       44.74
Colorado................................       14        2,704,423.79        1.66
Connecticut.............................       17        2,454,947.05        1.50
Delaware................................        1          160,479.38        0.10
District of Columbia....................        2          651,130.35        0.40
Florida.................................       64        8,966,294.14        5.50
Georgia.................................        9        1,542,933.49        0.95
Hawaii..................................        1          375,813.20        0.23
Idaho...................................        1          301,366.52        0.18
Illinois................................       15        2,053,347.26        1.26
Kansas..................................        1          283,540.03        0.17
Louisiana...............................        6        1,317,499.77        0.81
Maryland................................       22        4,466,892.39        2.74
Massachusetts...........................       19        3,103,793.86        1.90
Michigan................................        3          630,698.65        0.39
Minnesota...............................        4          990,191.51        0.61
Mississippi.............................        1          151,325.38        0.09
Nevada..................................        3          670,360.83        0.41
New Hampshire...........................        4          438,283.32        0.27
New Jersey..............................       73       11,255,264.20        6.90
New Mexico..............................        3          392,023.12        0.24
New York................................      147       26,150,021.05       16.03
North Carolina..........................        2          227,286.77        0.14
Ohio....................................        3          631,051.15        0.39
Oklahoma................................        2          518,699.54        0.32
Oregon..................................        6          988,121.49        0.61
Pennsylvania............................       27        3,898,833.46        2.39
Rhode Island............................        2          163,170.55        0.10
South Carolina..........................        2          306,844.31        0.19
Tennessee...............................        3          553,759.33        0.34
Texas...................................       41        7,024,546.61        4.31
Utah....................................        2          267,805.26        0.16
Vermont.................................        4          279,710.72        0.17
Virginia................................       17        3,158,389.71        1.94
Washington..............................        5        1,236,987.11        0.76
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
As of March 15, 1996, no more  than approximately 1.83% of the Aggregate  Unpaid
Principal  Balance of  the Mortgage  Loans was  secured by  Mortgaged Properties
located in any one zip code.
 
                                     S1-13
<PAGE>
                         ORIGINATORS OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
ORIGINATOR                                  LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
PHMC or Affiliate.......................      228     $ 41,958,953.34       25.72   %
Other Originators.......................      604      121,165,761.81       74.28
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
                           PURPOSES OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                         AGGREGATE       AGGREGATE
                                          NUMBER OF       UNPAID           UNPAID
                                          MORTGAGE       PRINCIPAL       PRINCIPAL
LOAN PURPOSE                                LOANS         BALANCE         BALANCE
- ----------------------------------------  ---------   ---------------  --------------
<S>                                       <C>         <C>              <C>
Purchase................................      127     $ 21,574,015.02       13.23   %
Rate/term refinance.....................      551      108,524,753.42       66.52
Equity take out.........................      154       33,025,946.71       20.25
                                              ---     ---------------     -------
        Total...........................      832     $163,124,715.15      100.00   %
                                              ---     ---------------     -------
                                              ---     ---------------     -------
</TABLE>
 
In general,  in the  case of  a  Mortgage Loan  made for  "rate/term"  refinance
purposes,  substantially  all  of the  proceeds  are  used to  pay  in  full the
principal balance of a previous mortgage loan of the mortgagor with respect to a
Mortgaged Property and to pay origination and closing costs associated with such
refinancing. However, in the case of a Mortgage Loan made for "equity take  out"
refinance  purposes, all or a portion of  the proceeds are generally retained by
the mortgagor for uses unrelated to  the Mortgaged Property. The amount of  such
proceeds   retained  by  the  mortgagor  may  be  substantial.  See  "The  Trust
Estates--Mortgage  Loans"  and   "PHMC--Mortgage  Loan   Underwriting"  in   the
Prospectus.
 
                               DELINQUENCY STATUS
 
<TABLE>
<CAPTION>
                                                                       PERCENTAGE OF
                                                                         AGGREGATE
                                                       ACTUAL             UNPAID
                                      NUMBER OF        UNPAID            PRINCIPAL
                                      MORTGAGE        PRINCIPAL       BALANCE OF THE
STATUS                                LOANS(1)       BALANCE(1)      MORTGAGE LOANS(2)
- ------------------------------------  ---------   -----------------  -----------------
<S>                                   <C>         <C>                <C>
30 to 59 days.......................         5           579,059.54         0.35      %
60 to 89 days.......................         4           979,225.18         0.60
90 days or more.....................         1            73,244.75         0.04
Loans in Foreclosure................         3         1,388,720.08         0.86
REO Mortgage Loans..................         1           116,891.67         0.07
                                            --
                                                  -----------------          ---
        Total.......................        14         3,137,141.22         1.92      %
                                            --
                                            --
                                                  -----------------          ---
                                                  -----------------          ---
</TABLE>
 
- ------------
(1) Reflects  the  number of  delinquent Mortgage  Loans  and the  actual unpaid
    principal balances of such Mortgage Loans based on information available  to
    the Servicer as of March 15, 1996.
 
(2) As of March 15, 1996.
 
The  indicated periods of delinquency are based  on the number of days past due,
based on a  30-day month. No  Mortgage Loan is  considered delinquent for  these
purposes until one month has passed since its contractual due date.
 
    On  January  17, 1994,  southern California  experienced an  earthquake (the
"Earthquake") and  thereafter  a number  of  aftershocks.  As a  result  of  the
Earthquake,  Los Angeles and  Ventura Counties (the  "Earthquake Counties") were
declared federal disaster  areas eligible  for federal  disaster assistance.  In
addition  to the Earthquake  Counties, other counties may  have been affected by
the Earthquake. As  of March  15, 1996,  approximately 17.56%  of the  Aggregate
Unpaid  Principal  Balance  of  the  Mortgage  Loans  was  secured  by Mortgaged
Properties that  are located  in the  Earthquake Counties.  The Seller  has  not
undertaken  the physical  inspection of any  Mortgaged Properties.  As a result,
there can be no assurance that material damage to any Mortgaged Property in  the
affected region has not occurred.
 
    As  of January 16, 1995 and March 16,  1995, as a result of flooding, 38 and
49 counties in California, respectively, (the "January 1995 Flood Counties"  and
"March 1995 Flood Counties," respectively, and together,
 
                                     S1-14
<PAGE>
the  "1995 Flood  Counties") were declared  federal disaster  areas eligible for
federal disaster assistance. As of March  15, 1996, approximately 42.73% of  the
Aggregate  Unpaid  Principal  Balance  of  the  Mortgage  Loans  was  secured by
Mortgaged Properties that  are located in  the January 1995  Flood Counties  and
approximately  38.58% of the Aggregate Unpaid  Principal Balance of the Mortgage
Loans was secured  by Mortgaged Properties  that are located  in the March  1995
Flood  Counties. The  Seller has not  undertaken the physical  inspection of any
Mortgaged Properties.  As a  result, there  can be  no assurance  that  material
damage to any Mortgaged Property in the affected region has not occurred.
 
    As  of  October 12,  1995, as  a  result of  a hurricane  affecting Georgia,
Alabama and  Florida (the  "Hurricane"), 28,  20 and  11 counties,  in  Georgia,
Alabama  and  Florida, respectively  (the  "Hurricane Counties"),  were declared
federal disaster areas eligible for federal disaster assistance. As of March 15,
1996, 0.72% of the Aggregate Unpaid Principal Balance of the Mortgage Loans  was
secured  by Mortgage Properties that are  located in the Hurricane Counties. The
Seller has not undertaken the  physical inspection of any Mortgaged  Properties.
As  a result, there  can be no  assurance that material  damage to any Mortgaged
Property in the affected region has not occurred.
 
    As of  March  8,  1996, as  a  result  of recent  flooding  (the  "Northeast
Floods"),  all counties in the Commonwealth of Pennsylvania, all counties in the
State of Maryland, 28 counties in the State of West Virginia, 28 counties in the
State of New York, 13 counties in  the Commonwealth of Virginia and 12  counties
in  the State  of Ohio  (the "Northeast  Flood Counties")  were declared federal
disaster areas eligible for federal disaster  assistance. As of March 15,  1996,
approximately  6.24% of the  Aggregate Unpaid Principal  Balance of the Mortgage
Loans was secured  by Mortgaged  Properties that  are located  in the  Northeast
Flood  Counties.  In  addition, other  counties  may  have been  and  may become
affected by the  Northeast Floods. The  Seller has not  undertaken the  physical
inspection  of any Mortgaged Properties. As a  result, there can be no assurance
that material damage to  any Mortgaged Property in  the affected region has  not
occurred.
 
    As  of February  28, 1996,  as a result  of recent  flooding (the "Northwest
Floods"), 26  counties in  the State  of Oregon,  21 counties  in the  State  of
Washington  and  10  counties  in  the  State  of  Idaho  (the  "Northwest Flood
Counties") were declared  federal disaster areas  eligible for federal  disaster
assistance.  As of March  15, 1996, approximately 1.36%  of the Aggregate Unpaid
Principal Balance of the Mortgage Loans was secured by Mortgage Properties  that
are  located in  the Northwest Flood  Counties. In addition,  other counties may
have been and may become  affected by the Northwest  Floods. The Seller has  not
undertaken  the physical  inspection of any  Mortgaged Properties.  As a result,
there can be no assurance that material damage to any Mortgaged Property in  the
affected region has not occurred.
 
    Based on information available to the Servicer as of March 15, 1996, five of
the  delinquent  Mortgage  Loans  shown  in  the  preceding  table, representing
approximately 0.77% of the  Aggregate Unpaid Principal  Balance of the  Mortgage
Loans  or approximately $1,262,227, were secured by Mortgaged Properties located
in the Earthquake Counties, the Hurricane Counties, the 1995 Flood Counties, the
Northeast Flood Counties or the Northwest Flood Counties.
 
              ORIGINATION, DELINQUENCY AND FORECLOSURE EXPERIENCE
 
    During the years ended December 31, 1993, December 31, 1994 and December 31,
1995, PHMC originated or purchased, for its own account or for the account of an
affiliate, conventional mortgage loans having an aggregate principal balance  of
approximately $35,805,498,813, $16,201,648,701 and $11,488,362,184,
respectively.
 
    The   following  tables  reflect  delinquency,  foreclosure  and  loan  loss
experience of mortgage loans serviced by PHMC. As described under "Risk  Factors
and  Special Considerations--Recent Developments," PHMC  intends, as of the Sale
Date, to cease  its mortgage  loan origination and  servicing business.  Norwest
Mortgage,   as  subservicer  for  PHMC,   will  perform  foreclosure  and  other
realization  activities  in  connection   with  defaulted  Mortgage  Loans   and
Prudential   Asset  Recovery,  Inc.  or  another  third  party  contractor  will
administer and dispose of real estate acquired upon foreclosure.
 
    Certain information concerning PHMC's delinquency, foreclosure and loan loss
experience on  certain  categories of  the  mortgage loans  included  in  PHMC's
mortgage  loan  servicing  portfolio  for the  years  ended  December  31, 1990,
December  31,  1991  and  December  31,  1992  is  set  forth  in  "Origination,
Delinquency  and Foreclosure Experience--Delinquency and Foreclosure Experience"
in the Prospectus Supplement. The following tables set forth such information as
of December 31, 1993, December 31, 1994 and December 31, 1995.
 
                                     S1-15
<PAGE>
                              TOTAL PROGRAM LOANS
 
<TABLE>
<CAPTION>
                             AS OF                   AS OF                   AS OF
                       DECEMBER 31, 1993       DECEMBER 31, 1994       DECEMBER 31, 1995
                     ----------------------  ----------------------  ----------------------
                                 BY DOLLAR               BY DOLLAR               BY DOLLAR
                      BY NO.      AMOUNT      BY NO.      AMOUNT      BY NO.      AMOUNT
                     OF LOANS    OF LOANS    OF LOANS    OF LOANS    OF LOANS    OF LOANS
                     --------   -----------  --------   -----------  --------   -----------
<S>                  <C>        <C>          <C>        <C>          <C>        <C>
                                         (DOLLAR AMOUNTS IN THOUSANDS)
 
Total Portfolio of
 Program Loans.....   337,156   $57,687,887   379,075   $62,175,544   423,895   $65,496,977
                     --------   -----------  --------   -----------  --------   -----------
                     --------   -----------  --------   -----------  --------   -----------
Period of
 Delinquency(1)
  30 to 59 days....     3,190   $   489,235     3,548   $   548,524     5,103   $   710,246
  60 to 89 days....       703       109,529       797       128,053       959       141,847
  90 days or
  more.............     1,398       271,637     1,418       308,124       729       122,554
                     --------   -----------  --------   -----------  --------   -----------
Total Delinquent
 Loans.............     5,291   $   870,401     5,763   $   984,701     6,791   $   974,647
                     --------   -----------  --------   -----------  --------   -----------
                     --------   -----------  --------   -----------  --------   -----------
Percent of
 Portfolio.........      1.57%         1.51%     1.52%         1.58%     1.60%         1.49%
</TABLE>
<TABLE>
<CAPTION>
                                         AS OF                AS OF                AS OF
                                   DECEMBER 31, 1993    DECEMBER 31, 1994    DECEMBER 31, 1995
                                   ------------------   ------------------   ------------------
<S>                                <C>                  <C>                  <C>
                                                  (DOLLAR AMOUNTS IN THOUSANDS)
 
Foreclosures(2)..................  $     277,533        $     354,028        $     360,645
Foreclosure Ratio(3).............           0.48%                0.57%                0.55%
 
<CAPTION>
 
                                       YEAR ENDED           YEAR ENDED           YEAR ENDED
                                   DECEMBER 31, 1993    DECEMBER 31, 1994    DECEMBER 31, 1995
                                   ------------------   ------------------   ------------------
                                                  (DOLLAR AMOUNTS IN THOUSANDS)
<S>                                <C>                  <C>                  <C>
 
Net Gain (Loss)(4)...............  $    (112,507)       $    (194,956)       $    (228,775)
Net Gain (Loss) Ratio(5).........          (0.20)%              (0.31)%              (0.35)%
</TABLE>
 
- ------------
(1) The indicated periods of  delinquency are based on  the number of days  past
    due,  based on a 30-day month. No mortgage loan is considered delinquent for
    these purposes until one month has passed since its contractual due date.  A
    mortgage   loan  is   no  longer  considered   delinquent  once  foreclosure
    proceedings have commenced.
 
(2) Includes loans in the applicable portfolio for which foreclosure proceedings
    had been instituted or with respect  to which the related property had  been
    acquired as of the dates indicated.
 
(3) Foreclosures  as a percentage of total  loans in the applicable portfolio at
    the end of each period.
 
(4) Does not  include gain  or loss  with  respect to  loans in  the  applicable
    portfolio  for  which foreclosure  proceedings had  been instituted  but not
    completed as of  the dates indicated,  or for which  the related  properties
    have been acquired in foreclosure proceedings but not yet sold.
 
(5) Net  gain (loss) as a percentage of  total loans in the applicable portfolio
    at the end of each period.
 
                                     S1-16
<PAGE>
                              FIXED PROGRAM LOANS
 
<TABLE>
<CAPTION>
                                                   AS OF                     AS OF                     AS OF
                                             DECEMBER 31, 1993         DECEMBER 31, 1994         DECEMBER 31, 1995
                                          -----------------------   -----------------------   -----------------------
                                                      BY DOLLAR                 BY DOLLAR                 BY DOLLAR
                                           BY NO.       AMOUNT       BY NO.       AMOUNT       BY NO.       AMOUNT
                                          OF LOANS     OF LOANS     OF LOANS     OF LOANS     OF LOANS     OF LOANS
                                          --------   ------------   --------   ------------   --------   ------------
                                                                 (DOLLAR AMOUNTS IN THOUSANDS)
 
<S>                                       <C>        <C>            <C>        <C>            <C>        <C>
Total Portfolio of Fixed Program
 Loans..................................   288,556   $ 48,156,806    307,975   $ 48,602,956    358,021   $ 53,576,591
                                          --------   ------------   --------   ------------   --------   ------------
                                          --------   ------------   --------   ------------   --------   ------------
Period of Delinquency(1)
  30 to 59 days.........................     2,609   $    380,197      2,708   $    389,236      4,101   $    528,824
  60 to 89 days.........................       571         86,136        591         87,687        743         98,269
  90 days or more.......................     1,117        211,870        965        188,414        545         82,595
                                          --------   ------------   --------   ------------   --------   ------------
Total Delinquent Loans..................     4,297   $    678,203      4,264   $    665,337      5,389   $    709,688
                                          --------   ------------   --------   ------------   --------   ------------
                                          --------   ------------   --------   ------------   --------   ------------
Percent of Fixed Program Loan
 Portfolio..............................      1.49%          1.41%      1.38%          1.37%      1.51%          1.32%
</TABLE>
<TABLE>
<CAPTION>
                                               AS OF             AS OF              AS OF
                                           DECEMBER 31,       DECEMBER 31,      DECEMBER 31,
                                               1993               1994              1995
                                          ---------------   ----------------   ---------------
                                                     (DOLLAR AMOUNTS IN THOUSANDS)
 
<S>                                       <C>               <C>                <C>
Foreclosures(2).........................  $  195,361        $   208,253        $  218,951
Foreclosure Ratio(3)....................        0.41%              0.43%             0.41%
 
<CAPTION>
 
                                            YEAR ENDED         YEAR ENDED        YEAR ENDED
                                           DECEMBER 31,       DECEMBER 31,      DECEMBER 31,
                                               1993               1994              1995
                                          ---------------   ----------------   ---------------
                                                     (DOLLAR AMOUNTS IN THOUSANDS)
<S>                                       <C>               <C>                <C>
 
Net Gain (Loss)(4)......................  $  (63,705)       $  (133,523)       $ (164,734)
Net Gain (Loss) Ratio(5)................       (0.13)%            (0.27)%           (0.31)%
</TABLE>
 
- ------------
(1) The indicated periods of  delinquency are based on  the number of days  past
    due,  based on a 30-day month. No mortgage loan is considered delinquent for
    these purposes until one month has passed since its contractual due date.  A
    mortgage   loan  is   no  longer  considered   delinquent  once  foreclosure
    proceedings have commenced.
 
(2) Includes loans in the applicable portfolio for which foreclosure proceedings
    had been instituted or with respect  to which the related property had  been
    acquired as of the dates indicated.
 
(3) Foreclosures  as a percentage of total  loans in the applicable portfolio at
    the end of each period.
 
(4) Does not  include gain  or loss  with  respect to  loans in  the  applicable
    portfolio  for  which foreclosure  proceedings had  been instituted  but not
    completed as of  the dates indicated,  or for which  the related  properties
    have been acquired in foreclosure proceedings but not yet sold.
 
(5) Net  gain (loss) as a percentage of  total loans in the applicable portfolio
    at the end of each period.
 
                                     S1-17
<PAGE>
                   FIXED 15-YEAR NON-RELOCATION PROGRAM LOANS
 
<TABLE>
<CAPTION>
                                               AS OF                   AS OF                   AS OF
                                         DECEMBER 31, 1993       DECEMBER 31, 1994       DECEMBER 31, 1995
                                       ----------------------  ----------------------  ----------------------
                                                   BY DOLLAR               BY DOLLAR               BY DOLLAR
                                        BY NO.      AMOUNT      BY NO.      AMOUNT      BY NO.      AMOUNT
                                       OF LOANS    OF LOANS    OF LOANS    OF LOANS    OF LOANS    OF LOANS
                                       --------   -----------  --------   -----------  --------   -----------
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
 
<S>                                    <C>        <C>          <C>        <C>          <C>        <C>
Total Portfolio of Fixed 15-Year Non-
 relocation Program Loans............   90,000    $12,652,480   94,356    $12,484,270   97,803    $12,143,242
                                       --------   -----------  --------   -----------  --------   -----------
                                       --------   -----------  --------   -----------  --------   -----------
Period of Delinquency(1)
  30 to 59 days......................      374    $    43,570      399    $    50,230      664    $    71,238
  60 to 89 days......................       53          5,259       61          7,853       97         11,191
  90 days or more....................       94         14,256      106         19,237       69          9,051
                                       --------   -----------  --------   -----------  --------   -----------
Total Delinquent Loans...............      521    $    63,085      566    $    77,320      830    $    91,480
                                       --------   -----------  --------   -----------  --------   -----------
                                       --------   -----------  --------   -----------  --------   -----------
Percent of Fixed 15-Year
 Non-relocation Program Loan
 Portfolio...........................     0.58%          0.50%    0.60%          0.62%    0.85%          0.75%
</TABLE>
<TABLE>
<CAPTION>
                                                AS OF               AS OF               AS OF
                                          DECEMBER 31, 1993   DECEMBER 31, 1994   DECEMBER 31, 1995
                                          -----------------   -----------------   -----------------
                                                        (DOLLAR AMOUNTS IN THOUSANDS)
 
<S>                                       <C>                 <C>                 <C>
Foreclosures(2).........................  $   16,567          $   17,331          $   18,888
Foreclosure Ratio(3)....................       0.13%               0.14%               0.16%
 
<CAPTION>
 
                                             YEAR ENDED          YEAR ENDED          YEAR ENDED
                                          DECEMBER 31, 1993   DECEMBER 31, 1994   DECEMBER 31, 1995
                                          -----------------   -----------------   -----------------
                                                        (DOLLAR AMOUNTS IN THOUSANDS)
<S>                                       <C>                 <C>                 <C>
 
Net Gain (Loss)(4)......................  $   (3,789)         $   (5,280)         $   (9,497)
Net Gain (Loss) Ratio(5)................       (0.03)%             (0.04)%             (0.08)%
</TABLE>
 
- ------------
(1) The indicated periods of  delinquency are based on  the number of days  past
    due,  based on a 30-day month. No mortgage loan is considered delinquent for
    these purposes until one month has passed since its contractual due date.  A
    mortgage   loan  is   no  longer  considered   delinquent  once  foreclosure
    proceedings have commenced.
 
(2) Includes loans in the applicable portfolio for which foreclosure proceedings
    had been instituted or with respect  to which the related property had  been
    acquired as of the dates indicated.
 
(3) Foreclosures  as a percentage of total  loans in the applicable portfolio at
    the end of each period.
 
(4) Does not  include gain  or loss  with  respect to  loans in  the  applicable
    portfolio  for  which foreclosure  proceedings had  been instituted  but not
    completed as of  the dates indicated,  or for which  the related  properties
    have been acquired in foreclosure proceedings but not yet sold.
 
(5) Net  gain (loss) as a percentage of  total loans in the applicable portfolio
    at the end of each period.
 
                                     S1-18
<PAGE>
            RESTRICTIONS ON TRANSFER OF THE CLASS A-18 CERTIFICATES
 
    Class A-18 Certificates with denominations of less than $134,222,000 initial
Class A-18  Notional Amount  but not  less than  $5,671,000 initial  Class  A-18
Notional  Amount may  be transferred  to persons who  deliver to  the Trustee an
affidavit stating  that such  person: (a)(i)  is a  substantial,  sophisticated,
institutional investor having knowledge and experience in financial and business
matters,  and in particular in such matters related to securities similar to the
Class A-18 Certificates, such  that such investor is  capable of evaluating  the
merits and risks of an investment in the Class A-18 Certificates, and (ii) has a
net  worth of at least $10,000,000; or (b) will hold the Class A-18 Certificates
solely as nominee for a person meeting the criteria set forth in clause (a).
 
                             HISTORICAL PREPAYMENTS
 
    The prepayment  model used  in  the Prospectus  Supplement is  the  Standard
Prepayment  Assumption ("SPA"). See "Prepayment and Yield Considerations" in the
Prospectus Supplement. An alternative  model is a conditional  (also known as  a
constant)  prepayment  rate  ("CPR").  CPR  represents  a  rate  of  payment  of
unscheduled principal on mortgage loans,  expressed as an annualized  percentage
of  the outstanding principal balance of such mortgage loans at the beginning of
each period. CPR DOES NOT PURPORT  TO BE A HISTORICAL DESCRIPTION OF  PREPAYMENT
EXPERIENCE  OR A PREDICTION OF THE ANTICIPATED RATE OF PREPAYMENT OF ANY POOL OF
MORTGAGE LOANS, INCLUDING THE MORTGAGE LOANS.
 
    The Series 1993-9 Certificates were issued  on February 26, 1993. Set  forth
below  are the  approximate annualized  prepayment rates  of the  Mortgage Loans
underlying the  Series 1993-9  Certificates as  a percentage  of CPR  as of  the
Distribution Dates occurring in the indicated months.
 
                          HISTORICAL PREPAYMENT RATES
<TABLE>
<CAPTION>
MONTH                                                           PERCENTAGE OF CPR
- --------------------------------------------------------------  -----------------
<S>                                                             <C>
March 1993....................................................        3.01%
April 1993....................................................        3.57%
May 1993......................................................       17.76%
June 1993.....................................................       26.27%
July 1993.....................................................       23.54%
August 1993...................................................       30.58%
September 1993................................................       33.40%
October 1993..................................................       61.92%
November 1993.................................................       62.03%
December 1993.................................................       61.99%
January 1994..................................................       73.06%
February 1994.................................................       43.75%
March 1994....................................................       42.69%
April 1994....................................................       42.15%
May 1994......................................................       11.54%
June 1994.....................................................        5.79%
July 1994.....................................................        8.34%
August 1994...................................................        1.26%
September 1994................................................        7.07%
 
<CAPTION>
MONTH                                                           PERCENTAGE OF CPR
- --------------------------------------------------------------  -----------------
<S>                                                             <C>
October 1994..................................................        7.73%
November 1994.................................................        8.46%
December 1994.................................................        2.57%
January 1995..................................................        1.90%
February 1995.................................................        6.46%
March 1995....................................................        3.41%
April 1995....................................................        0.95%
May 1995......................................................        4.22%
June 1995.....................................................       12.56%
July 1995.....................................................        8.25%
August 1995...................................................       11.83%
September 1995................................................        6.09%
October 1995..................................................        9.15%
November 1995.................................................        5.03%
December 1995.................................................        5.31%
January 1996..................................................       12.30%
February 1996.................................................       15.37%
March 1996....................................................       15.44%
</TABLE>
 
    The prepayment rates described above were calculated based upon the weighted
average  Mortgage Interest Rate  of the Mortgage Loans  for the applicable month
and an assumed  weighted average  remaining term  to maturity  for the  Mortgage
Loans  equal to the weighted  average remaining term to  maturity at the date of
the initial issuance  of the Series  1993-9 Certificates with  respect to  March
1993,  reduced by one month for each month thereafter. The prepayment history of
the Mortgage Loans underlying the Series 1993-9 Certificates is relatively short
and cannot be  relied upon as  an indicator of  the rate of  prepayments on  the
Mortgage  Loans to be experienced over the  life of the Class A-18 Certificates.
Further, the rate of prepayment  of a pool of  mortgage loans during any  period
should  be  considered  in  light  of  the  amount  of  time  elapsed  since the
origination of such mortgage loans and  the absolute levels of, and changes  in,
prevailing market interest rates during such period. For a further discussion of
the factors affecting the rate of prepayments on mortgage loans, see "Prepayment
and  Yield Considerations" in the Prospectus  Supplement. INVESTORS ARE URGED TO
MAKE AN INDEPENDENT DECISION AS TO THE APPROPRIATE PREPAYMENT ASSUMPTIONS TO  BE
USED IN DECIDING WHETHER TO PURCHASE A CLASS A-18 CERTIFICATE.
 
                                     S1-19
<PAGE>
                 SENSITIVITY OF THE PRE-TAX YIELD AND WEIGHTED
                  AVERAGE LIFE OF THE CLASS A-18 CERTIFICATES
 
    The  Prospectus Supplement and the  Prospectus contain important information
concerning factors that will affect the  yield and weighted average life of  the
Class  A-18  Certificates. Investors  are urged  to  read "Prepayment  and Yield
Considerations" in the Prospectus Supplement and the Prospectus.
 
    THE YIELD TO INVESTORS IN THE CLASS A-18 CERTIFICATES, WHICH ARE EXPECTED TO
BE OFFERED AT A SUBSTANTIAL PREMIUM, WILL BE HIGHLY SENSITIVE TO BOTH THE TIMING
OF RECEIPT OF PREPAYMENTS  AND THE OVERALL RATE  OF PRINCIPAL PREPAYMENT ON  THE
MORTGAGE  LOANS, PARTICULARLY WITH  RESPECT TO THOSE  MORTGAGE LOANS WITH HIGHER
RATES OF INTEREST, WHICH OVERALL RATE  MAY FLUCTUATE SIGNIFICANTLY FROM TIME  TO
TIME.  AN  INVESTOR IN  THE CLASS  A-18 CERTIFICATES  SHOULD FULLY  CONSIDER THE
ASSOCIATED RISKS, INCLUDING  THE RISK THAT  A RAPID RATE  OF PRINCIPAL  PAYMENTS
(INCLUDING  PREPAYMENTS) COULD RESULT  IN THE FAILURE OF  SUCH INVESTOR TO FULLY
RECOVER ITS INITIAL INVESTMENT.
 
    For purposes of the table  set forth below, the  weighted average life of  a
Class A-18 Certificate is the average amount of time that will elapse from April
26,  1996 until each dollar in reduction  of the principal balance of the Series
1993-9 Certificates is distributed to the holders thereof. The weighted  average
life  of the Class A-18 Certificates will  be influenced by, among other things,
the rate and timing of principal payments on the Mortgage Loans, which may be in
the form of scheduled amortization or prepayments.
 
    The following table has been prepared on the basis of the characteristics of
the Mortgage  Loans included  in  the Trust  Estate as  of  March 15,  1996,  as
described  above under "Description of the  Mortgage Loans," adjusted to reflect
calculated payments of principal on April 1, 1996 assuming a constant prepayment
rate equal to 0% CPR for the month of March 1996. This adjustment has the effect
of reducing the remaining terms to stated maturity of each Mortgage Loan by  one
month  from the  table shown  on page  S1-9. The  following table  indicates the
sensitivity to various rates of prepayment on the Mortgage Loans of the  pre-tax
yield  to maturity,  on a  corporate bond equivalent  ("CBE") basis,  and of the
weighted average life of the Class  A-18 Certificates at various percentages  of
CPR.  Such  calculations  are based  on  distributions made  in  accordance with
"Description of the Certificates"  herein and in  the Prospectus Supplement,  on
the  assumptions  described in  clauses (i),  (iii)  and (v)  of the  first full
paragraph on  page  S-71  of  the Prospectus  Supplement,  and  on  the  further
assumptions  that (i) the Class A-18 Certificates will be purchased on April 26,
1996 for an aggregate  purchase price equal  to approximately $1,870,282,  which
includes  accrued interest from April  1, 1996 to (but  not including) April 26,
1996, (ii) distributions to holders of  Class A-18 Certificates will be made  on
the  25th day  of each  month commencing  in May  1996, (iii)  scheduled monthly
payments of principal and interest on the Mortgage Loans will be timely received
on the first day of each month  (with no defaults) commencing in May 1996,  (iv)
principal  prepayments on the Mortgage Loans will be received on the last day of
each month commencing  in April 1996  at the respective  percentages of CPR  set
forth  in the  table and  there are no  Prepayment Interest  Shortfalls, (v) the
Class A-18 Notional Amount applicable to the Distribution Date occurring in  May
1996  will be approximately $162,436,826 and (vi) the Class A Subclass Principal
Balance of the Class A-18 Certificates as of the Determination Date occurring in
May 1996 will be approximately $380.
 
           SENSITIVITY OF THE PRE-TAX YIELD AND WEIGHTED AVERAGE LIFE
                 OF THE CLASS A-18 CERTIFICATES TO PREPAYMENTS
 
<TABLE>
<CAPTION>
                                                   PERCENTAGES OF CPR
                                        ----------------------------------------
                                         5%     10%    15%    20%    25%    31%
                                        -----  -----  -----  -----  -----  -----
<S>                                     <C>    <C>    <C>    <C>    <C>    <C>
Pre-Tax Yield to Maturity (CBE).......  32.37% 26.40% 20.26% 13.92%  7.38% (0.77)%
Weighted Average Life (years).........   5.56   4.58   3.82   3.21   2.73   2.28
</TABLE>
 
    The pre-tax yields set forth in  the preceding table were calculated by  (i)
determining the monthly discount rates which, when applied to the assumed stream
of  cash  flows to  be  paid on  the Class  A-18  Certificates, would  cause the
discounted present  value of  such assumed  stream  of cash  flows to  equal  an
assumed  purchase  price  for  the  Class  A-18  Certificates  of  approximately
$1,870,282 which  includes accrued  interest  from April  1,  1996 to  (but  not
 
                                     S1-20
<PAGE>
including)  April 26, 1996, and (ii)  converting such monthly rates to corporate
bond equivalent rates. Such calculation does not take into account the  interest
rates  at  which an  investor may  be able  to reinvest  funds received  by such
investor as distributions on the  Class A-18 Certificates and consequently  does
not  purport  to  reflect  the  return  on  any  investment  in  the  Class A-18
Certificates when such reinvestment rates are considered.
 
    The weighted average lives of the  Class A-18 Certificates set forth in  the
preceding   table  were  determined  by  (i)  multiplying  the  amount  of  each
distribution in  reduction  of  the  principal  balance  of  the  Series  1993-9
Certificates  by  the  number  of  years from  April  26,  1996  to  the related
Distribution Date, (ii)  adding the results  and (iii) dividing  the sum by  the
aggregate  distributions in  reduction of  the principal  balance of  the Series
1993-9 Certificates referred to in clause (i).
 
    NOTWITHSTANDING THE  ASSUMED PREPAYMENT  RATES  REFLECTED IN  THE  PRECEDING
TABLE, IT IS HIGHLY UNLIKELY THAT THE MORTGAGE LOANS WILL PREPAY AT ANY CONSTANT
RATE,  THAT THE MORTGAGE LOANS WILL PREPAY AT THE SAME RATE OR THAT THE MORTGAGE
LOANS WILL NOT EXPERIENCE ANY LOSSES. As a result of these factors, the  pre-tax
yield  and weighted average  life of the  Class A-18 Certificates  are likely to
differ from those shown in such table, even if all of the Mortgage Loans  prepay
at the indicated percentages of CPR.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    Elections  have  been made  to treat  the  Trust Estate  as two  REMICs (the
"Upper-Tier REMIC" and the "Lower-Tier REMIC") for federal income tax  purposes.
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 A-11,  Class A-12,  Class A-13, Class
A-14, Class A-15, Class A-16, Class A-17 and Class A-18 Certificates, the  Class
M  Certificates  and the  Class  B Certificates  are  designated as  the regular
interests in the Upper-Tier REMIC and the Class A-R and Class A-LR  Certificates
are  designated as the residual interests in the Upper-Tier REMIC and Lower-Tier
REMIC, respectively.
 
    The Class A-18 Certificates are treated as "qualifying real property  loans"
for  mutual savings banks and domestic  building and loan associations, "regular
interests in a  REMIC" for  domestic building  and loan  associations and  "real
estate assets" for real estate investment trusts, to the extent described in the
Prospectus.
 
    The  Class  A-18  Certificates  generally are  treated  as  debt instruments
originated on the date  of original issuance of  the Series 1993-9  Certificates
for  federal income tax purposes. Holders of the Class A-18 Certificates will be
required to  report income  thereon in  accordance with  the accrual  method  of
accounting.  Final and  temporary Treasury regulations  regarding original issue
discount (the "OID  Regulations") were  issued on February  2, 1994,  indicating
that  either the OID Regulations or the Proposed OID Regulations (as defined and
discussed in the  Prospectus) may be  relied upon as  authority with respect  to
debt  instruments issued on the  date of original issuance  of the Series 1993-9
Certificates. Although not free from doubt, the Seller believes that, under both
the  OID  Regulations  and  the   Proposed  OID  Regulations,  the  Class   A-18
Certificates  are considered to have been issued with original issue discount in
an amount equal  to the excess  of all distributions  of principal and  interest
expected  to  be  received thereon  over  their issue  price  (including accrued
interest). Any "negative" amounts of original  issue discount on the Class  A-18
Certificates attributable to rapid prepayments will not be deductible currently,
but  may be offset against future  positive accruals of original issue discount,
if any.  The holder  of a  Class  A-18 Certificate  may be  entitled to  a  loss
deduction  to the extent it becomes certain  that such holder will not recover a
portion of its basis in such  Certificate, assuming no further prepayments.  The
Seller  makes no representation  as to the  timing or amount  of such losses, if
any, or  how any  such losses  will be  reported to  the holders.  See  "Certain
Federal  Income  Tax  Consequences--Federal Income  Tax  Consequences  for REMIC
Certificates--Taxation of Regular Certificates-- Original Issue Discount" in the
Prospectus. The adjusted issue price of a Class A-18 Certificate as of the  date
of  purchase by  an investor  is its original  issue price,  plus original issue
discount accrued  since the  date  of original  issuance  of the  Series  1993-9
Certificates,  less distributions  made, and  losses, if  any, incurred,  on the
Class A-18 Certificates since the date of original issuance of the Series 1993-9
Certificates. A purchase price for a Class A-18 Certificate that is less than or
greater than the adjusted issue price of such Class A-18 Certificate will result
in market discount or acquisition premium, respectively, to the beneficial owner
thereof, as  discussed  in the  Prospectus  under "Certain  Federal  Income  Tax
Consequences--Federal  Income Tax Consequences for REMIC Certificates-- Taxation
of Regular Certificates."
 
                                     S1-21
<PAGE>
    The Prepayment Assumption  that is  to be used  in determining  the rate  of
accrual  of original  issue discount is  set forth in  the Prospectus Supplement
under   "Federal   Income   Tax   Considerations--Regular   Certificates."    No
representation  is made as to  the actual rate at  which the Mortgage Loans will
prepay.
 
    See "Summary Information--Federal Income Tax Status" and "Federal Income Tax
Considerations" in the  Prospectus Supplement  and "Certain  Federal Income  Tax
Consequences--Federal  Income Tax  Consequences for  REMIC Certificates"  in the
Prospectus.
 
                                  UNDERWRITING
 
    Subject to the terms and conditions of an underwriting agreement and a terms
agreement (together, the  "Underwriting Agreement") among  the Seller, PHMC  and
PaineWebber  Incorporated,  as underwriter  (the "Underwriter")  and, as  to the
terms agreement,  Prudential  Insurance,  the Class  A-18  Certificates  offered
hereby  are being purchased from the Seller by the Underwriter on or about April
26, 1996.  The  Underwriter is  committed  to purchase  all  of the  Class  A-18
Certificates  offered hereby if  any Class A-18  Certificates are purchased. The
Underwriter has advised  the Seller  that it proposes  to offer  the Class  A-18
Certificates,  from  time  to  time,  for  sale  in  negotiated  transactions or
otherwise at prices determined at the time of sale. Proceeds to the Seller  from
the  sale of the Class A-18 Certificates  are expected to be approximately 1.09%
of the Pool Scheduled Principal Balance as of the Distribution Date in May  1996
without   giving  effect  to  partial   principal  prepayments  or  net  partial
liquidation proceeds received on or after the Determination Date in April  1996,
plus  accrued interest from April 1, 1996 to (but not including) April 26, 1996.
The Underwriter and  any dealers that  participate with the  Underwriter in  the
distribution  of the Class  A-18 Certificates may be  deemed to be underwriters,
and any discounts or commissions received by  them and any profit on the  resale
of Class A-18 Certificates by them may be deemed to be underwriting discounts or
commissions under the Securities Act of 1933, as amended (the "Securities Act").
 
    The  Underwriting Agreement  provides that  the Seller,  PHMC and Prudential
Insurance will indemnify the Underwriter against certain civil liabilities under
the Securities  Act or  contribute  to payments  which  the Underwriter  may  be
required to make in respect thereof.
 
                                SECONDARY MARKET
 
    There  will  not be  any secondary  market for  the Class  A-18 Certificates
offered hereby prior to the offering thereof. The Underwriter intends to act  as
a  market maker in the Class A-18 Certificates, subject to applicable provisions
of federal and state securities laws  and other regulatory requirements, but  is
under  no obligation to do so. There can be no assurance that a secondary market
in the Class A-18 Certificates will develop  or, if such a market does  develop,
that  it  will provide  holders  of Class  A-18  Certificates with  liquidity of
investment  at  any  particular  time  or  for  the  life  of  the  Class   A-18
Certificates.
 
                              ERISA CONSIDERATIONS
 
    As  described in the Prospectus under  "ERISA Considerations," ERISA and the
Code impose certain duties and restrictions  on any person which is an  employee
benefit  plan  within the  meaning of  Section 3(3)  of the  Employee Retirement
Income Security Act of 1974, as amended  ("ERISA"), or Code Section 4975 or  any
person  utilizing the assets of such employee benefit plan (an "ERISA Plan") and
certain persons  who perform  services for  ERISA Plans.  Comparable duties  and
restrictions may exist under federal, state or local laws ("Similar Law"), which
are,  to a material  extent, similar to  the foregoing sections  of ERISA or the
Code, on governmental  plans and  on certain  persons who  perform services  for
governmental plans. For example, unless exempted, investment by an ERISA Plan in
the Class A-18 Certificates may constitute a prohibited transaction under ERISA,
the  Code or  Similar Law.  There are  certain exemptions  issued by  the United
States Department of Labor (the "DOL")  that may be applicable to an  investment
by  an  ERISA Plan  in  the Class  A-18  Certificates, including  the individual
administrative  exemption  described  below  and  Prohibited  Transaction  Class
Exemption 83-1 ("PTE 83-1"). For a further discussion of PTE 83-1, including the
necessary  conditions to  its applicability, and  other important  factors to be
considered  by  an  ERISA  Plan  contemplating  investing  in  the  Class   A-18
Certificates, see "ERISA Considerations" in the Prospectus.
 
                                     S1-22
<PAGE>
    On  June  25,  1990,  the  DOL  issued  to  the  Underwriter  an  individual
administrative exemption, Prohibited Transaction  Exemption 90-36, 55 Fed.  Reg.
25903  (the "Exemption"),  from certain of  the prohibited  transaction rules of
ERISA with  respect to  the initial  purchase, the  holding and  the  subsequent
resale  by an ERISA  Plan of certificates  in pass-through trusts  that meet the
considerations and requirements of the  Exemption. The Exemption might apply  to
the  acquisition, holding and resale of the  Class A-18 Certificates by an ERISA
Plan, provided that specified conditions are met.
 
    Among the conditions which would have  to be satisfied for the Exemption  to
apply to the acquisition by an ERISA Plan of the Class A-18 Certificates, is the
condition  that the ERISA  Plan investing in  the Class A-18  Certificates be an
"accredited investor"  as defined  in  Rule 501(a)(1)  of  Regulation D  of  the
Securities and Exchange Commission under the Securities Act.
 
    Before  purchasing a  Class A-18 Certificate,  a fiduciary of  an ERISA Plan
should make its own determination as to the availability of the exemptive relief
provided  in  the  Exemption  or  the  availability  of  any  other   prohibited
transaction  exemptions (including PTE 83-1), and  whether the conditions of any
such exemption will be applicable to the Class A-18 Certificates. Any  fiduciary
of an ERISA Plan considering whether to purchase a Class A-18 Certificate should
also  carefully  review with  its own  legal advisors  the applicability  of the
fiduciary duty and prohibited  transaction provisions of ERISA  and the Code  to
such investment. See "ERISA Considerations" in the Prospectus.
 
                                LEGAL INVESTMENT
 
    The  Class A-18  Certificates will constitute  "mortgage related securities"
for purposes  of the  Secondary Mortgage  Market Enhancement  Act of  1984  (the
"Enhancement  Act") so long as  they are rated in one  of the two highest rating
categories  by   at  least   one   nationally  recognized   statistical   rating
organization.  As such,  the Class A-18  Certificates are  legal investments for
certain entities  to  the  extent  provided in  the  Enhancement  Act.  However,
institutions subject to the jurisdiction of the Office of the Comptroller of the
Currency,  the Board  of Governors  of the  Federal Reserve  System, the Federal
Deposit Insurance Corporation,  the Office of  Thrift Supervision, the  National
Credit  Union Administration  or state  banking or  insurance authorities should
review applicable rules, supervisory policies  and guidelines of these  agencies
before  purchasing a Class A-18 Certificate,  as such Certificates may be deemed
to be unsuitable  investments under  one or more  of these  rules, policies  and
guidelines  and certain restrictions may apply  to investments in the Class A-18
Certificates. It should also be noted that certain states recently have enacted,
or have proposed enacting, legislation  limiting to varying extents the  ability
of  certain entities (in  particular insurance companies)  to invest in mortgage
related securities. Investors should  consult with their  own legal advisors  in
determining  whether and to  what extent the  Class A-18 Certificates constitute
legal investments for such investors. See "Legal Investment" in the Prospectus.
 
                                 LEGAL MATTERS
 
    The validity of  the Class A-18  Certificates and certain  tax matters  with
respect  thereto will be passed upon for  the Seller by Cadwalader, Wickersham &
Taft, New York,  New York. Certain  legal matters  will be passed  upon for  the
Underwriter by Brown & Wood, New York, New York.
 
                                USE OF PROCEEDS
 
    The net proceeds to be received from the sale of the Class A-18 Certificates
will  be applied by  the Seller to the  purchase from an  affiliate of the Class
A-18 Certificates.
 
                                    RATINGS
 
    The Class A-18  Certificates have  been rated "AAA"  by Fitch  and "Aaa"  by
Moody's.  See "Ratings" in the Prospectus Supplement for a further discussion of
the ratings of the Certificates.
 
    The ratings of Fitch and Moody's do  not address the possibility that, as  a
result  of principal  prepayments, Certificateholders  may receive  a lower than
anticipated yield or the possibility that, as a result of prepayments, investors
in  the  Class  A-18  Certificates  may  fail  to  fully  recoup  their  initial
investment.
 
                                     S1-23
<PAGE>
               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
 
    There  are incorporated herein by reference  all documents and reports filed
or caused to be filed by the Seller with respect to the Trust Estate pursuant to
Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the  termination
of the offering of the Class A-18 Certificates. The Seller will provide or cause
to  be  provided  without charge  to  each  person to  whom  this  Supplement is
delivered in connection with the offering of the Class A-18 Certificates a  list
identifying  all  filings with  respect to  a Trust  Estate pursuant  to Section
13(a), 13(c), 14 or 15(d) of the  Exchange Act since the Seller's latest  fiscal
year  covered  by its  annual report  on  Form 10-K  and a  copy  of any  or all
documents or  reports incorporated  herein by  reference, in  each case  to  the
extent  such documents or  reports relate to the  Class A-18 Certificates, other
than the  exhibits to  such  documents (unless  such exhibits  are  specifically
incorporated  by reference in such documents).  Requests to the Seller should be
directed to:  The  Prudential  Home  Mortgage  Securities  Company,  Inc.,  5325
Spectrum Drive, Frederick, Maryland 21701, telephone number (301) 846-8199.
 
                                     S1-24
<PAGE>
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED FEBRUARY 5, 1993)
 
                                  $388,743,000
                                 (APPROXIMATE)
 
THE PRUDENTIAL HOME MORTGAGE SECURITIES COMPANY, INC. r
 
                                     SELLER
               MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 1993-9
        PRINCIPAL AND INTEREST PAYABLE MONTHLY, COMMENCING IN MARCH 1993
                              --------------------
 
    The  Series 1993-9  Mortgage Pass-Through  Certificates (the  "Series 1993-9
Certificates") will consist of  one class of senior  certificates (the "Class  A
Certificates")  and  two  classes  of subordinated  certificates  (the  "Class M
Certificates" and  "Class  B  Certificates,"  respectively,  and  together,  the
"Subordinated Certificates"). The Class A Certificates are entitled to a certain
priority,  relative  to  the  Class  M and  Class  B  Certificates  in  right of
distributions on the Mortgage Loans. As between the Class M Certificates and the
Class B  Certificates,  the Class  M  Certificates  are entitled  to  a  certain
priority  in  right  of  distributions  on  the  Mortgage  Loans.  The  Class  A
Certificates  will  consist  of  twenty  subclasses  (each,  a  "Subclass")   of
Certificates designated as 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 A-11, Class
A-12, Class A-13, Class  A-14, Class A-15, Class  A-16, Class A-17, Class  A-18,
Class  A-R and  Class A-LR  Certificates. The Class  M Certificates  will not be
divided into subclasses.  The Class A  Certificates (other than  the Class  A-18
Certificates)  and the Class M Certificates  are referred to herein collectively
as the "Offered Certificates" and are the only Series 1993-9 Certificates  being
offered hereby.                                         (CONTINUED ON NEXT PAGE)
 
THESE  SECURITIES DO NOT REPRESENT INTERESTS IN OR OBLIGATIONS OF THE PRUDENTIAL
HOME MORTGAGE SECURITIES  COMPANY, INC.  OR ANY  AFFILIATE THEREOF.  NEITHER
    THESE SECURITIES NOR THE UNDERLYING MORTGAGE LOANS WILL BE INSURED OR
       GUARANTEED  BY ANY                        GOVERNMENTAL AGENCY OR
                                INSTRUMENTALITY.
                          ----------------------------
 
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 SUBCLASS OR                                             INITIAL SUBCLASS OR
   SUBCLASS OR             CLASS              PASS-THROUGH         SUBCLASS OR             CLASS              PASS-THROUGH
CLASS DESIGNATION  PRINCIPAL BALANCE (1)          RATE          CLASS DESIGNATION  PRINCIPAL BALANCE (1)          RATE
<S>                <C>                      <C>                 <C>                <C>                      <C>
Class A-1........       $14,244,000               4.65%         Class A-11.......       $22,803,000               7.50%
Class A-2........       $55,000,000               5.40%         Class A-12.......       $31,632,000               7.50%
Class A-3........           (2)                   7.50%         Class A-13.......       $37,825,000               7.50%
Class A-4........       $20,304,000               5.40%         Class A-14.......       $35,000,000               7.50%
Class A-5........       $47,937,000                (3)          Class A-15.......       $25,000,000                (6)
Class A-6........           (4)                    (5)          Class A-16.......       $ 7,500,000                (7)
Class A-7........       $11,129,000               5.90%         Class A-17.......       $ 3,715,000               7.50%
Class A-8........       $23,946,000               6.30%         Class A-R........       $     1,000               7.50%
Class A-9........       $26,341,000               6.70%         Class A-LR.......       $     1,000             7.50%(8)
Class A-10.......       $21,329,000               7.05%         Class M..........       $ 5,036,000               7.50%
</TABLE>
 
(1) Approximate. The initial Subclass or Class Principal Balances are subject to
    adjustment as described herein.
 
(2) The Class A-3 Certificates are interest only certificates, have no principal
    balance and will bear interest on the Class A-3 Notional Amount  (initially,
    approximately  $20,812,720) as  described herein  under "Description  of the
    Certificates--Interest."
 
(3) Until the LIBOR  Based Interest  Accrual Period commencing  on February  25,
    1995,  interest will  accrue on  the Class A-5  Certificates at  the rate of
    5.00% per annum. During each LIBOR Based Interest Accrual Period thereafter,
    interest will accrue on the Class A-5 Certificates at a per annum rate equal
    to the lesser of (i) 0.65% plus the arithmetic mean of the London  interbank
    offered rate quotations for one-month Eurodollar deposits determined monthly
    as  set forth  herein ("LIBOR") and  (ii) 10.0001%. See  "Description of the
    Certificates--Interest" herein.
 
(4) The Class A-6 Certificates are interest only certificates, have no principal
    balance and will bear interest on the Class A-6 Notional Amount  (initially,
    approximately  $11,984,250) as  described herein  under "Description  of the
    Certificates--Interest."
 
(5) Until the LIBOR  Based Interest  Accrual Period commencing  on February  25,
    1995,  interest will  accrue on  the Class A-6  Certificates at  the rate of
    20.0005% per annum on the Class A-6 Notional Amount. During each LIBOR Based
    Interest Accrual Period thereafter,  interest will accrue  on the Class  A-6
    Certificates  at a per annum rate, subject to  a minimum of 0% and a maximum
    of 37.4005%,  equal  to 37.4005%  minus  (4.00 X  LIBOR)  on the  Class  A-6
    Notional Amount. See "Description of the Certificates--Interest" herein.
 
(6) During  the  initial  LIBOR  Based  Interest  Accrual  Period  commencing on
    February 25, 1993, interest  will accrue on the  Class A-15 Certificates  at
    the  rate of  4.4375% per  annum. During  each LIBOR  Based Interest Accrual
    Period thereafter, interest will accrue on the Class A-15 Certificates at  a
    per  annum rate  equal to  the lesser  of (i)  1.25% plus  LIBOR, determined
    monthly as  set  forth  herein  and (ii)  9.75%.  See  "Description  of  the
    Certificates--Interest" herein.
 
(7) During  the  initial  LIBOR  Based  Interest  Accrual  Period  commencing on
    February 25, 1993, interest  will accrue on the  Class A-16 Certificates  at
    the  rate  of  approximately 17.7083%  per  annum. During  each  LIBOR Based
    Interest Accrual Period thereafter, interest  will accrue on the Class  A-16
    Certificates  at a  per annum rate,  subject to a  minimum rate of  0% and a
    maximum rate of  approximately 28.33%, equal  to approximately 28.33%  minus
    (approximately 3.33 X LIBOR). See "Description of the
    Certificates--Interest" herein.
 
(8) On the Class A-LR Notional Amount.
 
    The  Offered Certificates will be purchased from the Seller by Bear, Stearns
& Co. Inc. (the "Underwriter") and will be offered by the Underwriter from  time
to  time to the public in negotiated transactions or otherwise at varying prices
to be determined at the time of sale.  The proceeds to the Seller from the  sale
of  the  Offered  Certificates  will  be  101.71875%  of  the  aggregate initial
principal balance of the Offered Certificates, plus accrued interest thereon and
on an amount equal to the aggregate initial principal balance of the Class  A-18
Certificates  at the rate of  7.50% per annum from February  1, 1993 to (but not
including) February 26, 1993,  before deducting expenses  payable by the  Seller
estimated  to be  $395,000. The  price to  be paid  to the  Seller has  not been
allocated among the Offered Certificates. See "Underwriting" herein.
 
    The Offered Certificates  are offered  by the Underwriter  subject to  prior
sale when, as and if delivered to and accepted by the Underwriter and subject to
certain other conditions. The Underwriter reserves the right to withdraw, cancel
or modify such offer without notice and to reject any order in whole or in part.
It  is expected that the  Offered Certificates will be  ready for delivery on or
about February 26, 1993 through the facilities of The Depository Trust  Company,
or  in the case of the  Class A-3, Class A-6, Class  A-R, Class A-LR and Class M
Certificates, at the office of  Bear, Stearns & Co.  Inc., 245 Park Avenue,  New
York, New York 10167, against payment therefor in immediately available funds.
 
                          ----------------------------
 
                            BEAR, STEARNS & CO. INC.
                               FEBRUARY 19, 1993
<PAGE>
(CONTINUED FROM PREVIOUS PAGE)
 
    The  Class A-1, Class A-2, Class A-4, Class A-5, Class A-7, Class A-8, Class
A-9, Class  A-10 and  Class  A-11 Certificates  are planned  amortization  class
certificates  and are referred to herein collectively as the "PAC Certificates."
The  Class  A-12  Certificates  are   referred  to  herein  as  the   "Scheduled
Certificates." The Class A-15 and Class A-16 Certificates are referred to herein
as  the  "Scheduled Companion  Certificates."  The Class  A-17  Certificates are
referred to herein as the "Companion Certificates." The Class A-12, Class  A-15,
Class  A-16 and Class  A-17 Certificates are referred  to herein collectively as
the "Support Certificates." The Class  A-13 Certificates will exhibit  principal
payment  characteristics  of both  planned  amortization class  certificates and
scheduled certificates.  The  Class  A-14 Certificates  will  exhibit  principal
payment  characteristics  of both  planned  amortization class  certificates and
scheduled  companion  certificates.  Solely  for  the  purpose  of   determining
distributions  in reduction  of principal  balance, the  Class A-13 Certificates
will be  deemed  to  consist of  three  components:  two PAC  Components  and  a
Scheduled  Component.  Solely for  the purpose  of determining  distributions in
reduction of principal  balance, the Class  A-14 Certificate will  be deemed  to
consist  of two components: a PAC Component and a Scheduled Companion Component.
The Scheduled Component and  the Scheduled Companion  Component are referred  to
herein  collectively as the "Support  Components." However, the Beneficial Owner
of a Class A-13 or Class A-14 Certificate will not have a severable interest  in
any  component, but will have an undivided  interest in the entire Subclass. The
Class A-17 Certificates will accrete interest  as described herein and are  also
referred to herein as the "Accrual Certificates."
    The  Series 1993-9  Certificates will evidence  in the  aggregate the entire
beneficial ownership interest in a trust fund (the "Trust Estate") consisting of
a pool of fixed interest rate, conventional, monthly pay, fully amortizing, one-
to four-family, residential first mortgage loans having original terms to stated
maturity of approximately 15  years, which may include  loans secured by  shares
issued by cooperative housing corporations (the "Mortgage Loans"), together with
certain  related  property,  sold  by The  Prudential  Home  Mortgage Securities
Company, Inc.  (the  "Seller") and  serviced  by The  Prudential  Home  Mortgage
Company,  Inc. (in its capacity as  servicer, the "Servicer;" otherwise "PHMC").
See "Description of the  Mortgage Loans" herein. The  Class A Certificates  will
initially  evidence in the aggregate an approximate 95.25% undivided interest in
the principal  balance of  the Mortgage  Loans. The  Class M  Certificates  will
initially  evidence in the aggregate an  approximate 1.25% undivided interest in
the principal balance  of the  Mortgage Loans. The  remaining approximate  3.50%
undivided  interest  in the  principal  balance of  the  Mortgage Loans  will be
evidenced by the Class B Certificates.
    Distributions in respect of  interest and of principal  will be made on  the
25th  day of each month or, if such day is not a business day, on the succeeding
business day (each  a "Distribution  Date"), commencing  in March  1993, to  the
holders  of Offered Certificates  as described herein.  The Accrual Certificates
will not receive distributions of interest  until the Cross-Over Date. Prior  to
such  time,  interest  otherwise  available  for  distribution  to  the  Accrual
Certificates will  be added  to the  principal balance  thereof. The  amount  of
interest  accrued  on any  Subclass  or Class  of  Offered Certificates  will be
reduced by any prepayment  interest shortfalls and  certain other shortfalls  in
the  collection  of interest  from  mortgagors, as  well  as certain  losses, as
described herein  under  "Description  of the  Certificates--Interest."  On  any
Distribution  Date,  the  holders  of  the  Class  M  Certificates  will receive
distributions of interest only if the  holders of the Class A Certificates  have
received  all amounts of interest and of principal to which they are entitled on
such date. Distributions  of principal to  holders of the  Class M  Certificates
will  be made only  after the Class  M Certificates have  received the amount of
interest due  them with  respect  to such  Distribution Date.  Distributions  in
reduction  of  the  principal  balance  of  the  Class  A  Certificates  on  any
Distribution Date will be allocated among the Subclasses of Class A Certificates
in the manner described herein under "Description of the Certificates--Principal
(Including Prepayments)." Distributions to each  Subclass or undivided Class  of
Offered  Certificates will  be made  pro rata  among Certificateholders  of such
Subclass or Class. The Class A-3 and Class A-6 Certificates are not entitled  to
any distributions of principal.
    THE  YIELD  TO MATURITY  OF THE  OFFERED CERTIFICATES  WILL BE  SENSITIVE IN
VARYING DEGREES  TO  THE  RATE  AND  TIMING  OF  PRINCIPAL  PAYMENTS  (INCLUDING
PREPAYMENTS)  ON THE MORTGAGE  LOANS, WHICH MAY  BE PREPAID AT  ANY TIME WITHOUT
PENALTY. INVESTORS IN  THE OFFERED CERTIFICATES  SHOULD CONSIDER THE  ASSOCIATED
RISKS,  INCLUDING, IN THE CASE OF  OFFERED CERTIFICATES PURCHASED AT A DISCOUNT,
THE RISK THAT A SLOWER THAN ANTICIPATED RATE OF PAYMENTS IN RESPECT OF PRINCIPAL
(INCLUDING PREPAYMENTS) ON THE  MORTGAGE LOANS COULD RESULT  IN AN ACTUAL  YIELD
THAT  IS  LOWER  THAN  ANTICIPATED  AND, IN  THE  CASE  OF  OFFERED CERTIFICATES
PURCHASED AT  A  PREMIUM,  OR IN  THE  CASE  OF  THE CLASS  A-3  AND  CLASS  A-6
CERTIFICATES  WHICH HAVE  NO PRINCIPAL BALANCE,  THAT A  FASTER THAN ANTICIPATED
RATE OF PAYMENTS IN RESPECT OF PRINCIPAL (INCLUDING PREPAYMENTS) ON THE MORTGAGE
LOANS COULD RESULT IN AN ACTUAL YIELD THAT IS LOWER THAN ANTICIPATED.  INVESTORS
IN THE CLASS A-3 AND CLASS A-6 CERTIFICATES SHOULD ALSO CONSIDER THE RISK THAT A
RAPID  RATE OF  PAYMENTS IN RESPECT  OF PRINCIPAL  (INCLUDING PREPAYMENTS) COULD
RESULT IN  THE  FAILURE  OF  SUCH  INVESTORS  TO  FULLY  RECOVER  THEIR  INITIAL
INVESTMENTS. THE YIELD TO INVESTORS IN THE CLASS A-6 AND CLASS A-16 CERTIFICATES
WILL  BE HIGHLY SENSITIVE  TO THE LEVEL OF  LIBOR AND HIGH  LEVELS OF LIBOR WILL
HAVE A MATERIAL NEGATIVE EFFECT ON THE  YIELD TO INVESTORS IN THE CLASS A-6  AND
CLASS  A-16 CERTIFICATES AND, IN  THE CASE OF THE  CLASS A-6 CERTIFICATES, COULD
RESULT IN  THE  FAILURE  OF  SUCH  INVESTORS  TO  FULLY  RECOVER  THEIR  INITIAL
INVESTMENTS.  THE YIELD  TO MATURITY  OF THE CLASS  M CERTIFICATES  WILL BE MORE
SENSITIVE TO THE AMOUNT AND TIMING OF LOSSES DUE TO LIQUIDATIONS OF THE MORTGAGE
LOANS THAN THE CLASS  A CERTIFICATES, IN  THE EVENT THAT  THE CLASS B  PRINCIPAL
BALANCE    HAS    BEEN   REDUCED    TO   ZERO.    SEE   "DESCRIPTION    OF   THE
CERTIFICATES--INTEREST,"   "--PRINCIPAL   (INCLUDING   PREPAYMENTS)"   AND   "--
SUBORDINATION  OF CLASS M  AND CLASS B CERTIFICATES"  HEREIN AND "PREPAYMENT AND
YIELD CONSIDERATIONS" HEREIN AND IN THE PROSPECTUS.
    THE WEIGHTED AVERAGE LIVES OF THE  SUPPORT CERTIFICATES, AND THE CLASS  A-13
AND  CLASS A-14  CERTIFICATES BY VIRTUE  OF AND  TO THE EXTENT  OF THEIR SUPPORT
COMPONENTS, WILL BE SENSITIVE, IN VARYING DEGREES, TO THE RATE OF PREPAYMENTS ON
THE MORTGAGE LOANS  AT OR ABOVE  CERTAIN PREPAYMENT LEVELS  BECAUSE PAYMENTS  OF
PRINCIPAL  ALLOCATED TO THE CLASS A  CERTIFICATES IN EXCESS OF AMOUNTS RESULTING
FROM SUCH PREPAYMENT LEVELS WILL BE PAID IN RESPECT OF THE SUPPORT  CERTIFICATES
AND  THE  SUPPORT  COMPONENTS  PRIOR  TO  BEING  PAID  IN  RESPECT  OF  THE  PAC
CERTIFICATES AND THE PAC COMPONENTS.  SEE "PREPAYMENT AND YIELD  CONSIDERATIONS"
HEREIN.
    The  Offered Certificates, other  than the Class A-3,  Class A-6, Class A-R,
Class A-LR and Class M Certificates, will be issued only in book-entry form (the
"Book-Entry Certificates")  and  purchasers  thereof will  not  be  entitled  to
receive  definitive certificates except  in the limited  circumstances set forth
herein. The Book-Entry  Certificates will be  registered in the  name of Cede  &
Co.,  as nominee of The Depository Trust  Company, which will be the "holder" or
"Certificateholder" of such  Certificates, as  such terms are  used herein.  See
"Description of the Certificates" herein.
    There  is currently  no secondary  market for  the Offered  Certificates and
there can be no assurance  that a secondary market will  develop or, if it  does
develop, that it will provide Certificateholders with liquidity of investment at
any particular time or for the life of the Offered Certificates. The Underwriter
intends  to  act as  a  market maker  in  the Offered  Certificates,  subject to
applicable provisions of federal and state securities laws and other  regulatory
requirements, but is under no obligation to do so and any such market making may
be discontinued at any time. There can be no assurance that any investor will be
able to sell an Offered Certificate at a price which is equal to or greater than
the  price at which such Certificate was purchased. THE CLASS M CERTIFICATES MAY
NOT BE PURCHASED BY OR TRANSFERRED TO AN ERISA PLAN EXCEPT UPON THE DELIVERY  OF
AN  OPINION OF COUNSEL AS PROVIDED HEREIN.  IN ADDITION, THE CLASS A-R AND CLASS
A-LR CERTIFICATES MAY NOT BE PURCHASED BY OR TRANSFERRED TO (I) A  "DISQUALIFIED
ORGANIZATION,"  (II) EXCEPT UNDER CERTAIN LIMITED CIRCUMSTANCES, A PERSON WHO IS
NOT A "U.S. PERSON," (III)  AN ERISA PLAN OR (IV)  ANY PERSON OR ENTITY WHO  THE
TRANSFEROR  KNOWS OR HAS REASON TO KNOW WILL  BE UNWILLING OR UNABLE TO PAY WHEN
DUE ANY  FEDERAL,  STATE  OR  LOCAL  TAXES  WITH  RESPECT  THERETO.  See  "ERISA
Considerations"  and "Description of the Certificates-- Restrictions on Transfer
of the Class A-6, Class  A-R, Class A-LR and  Class M Certificates" herein,  and
"Certain  Federal Income  Tax Consequences--Federal Income  Tax Consequences for
REMIC Certificates--Taxation of Residual Certificates--Tax-Related  Restrictions
on  Transfer of Residual Certificates" in the Prospectus. In addition, Class A-6
Certificates evidencing less than  $855,000 initial notional  amount may not  be
purchased  by or transferred  to any person  unless such person  delivers to the
Trustee an  affidavit  concerning  certain  matters  related  to  the  financial
sophistication   and  net  worth  of  such   person.  See  "Description  of  the
Certificates--General" and "--Restrictions on Transfer  of the Class A-6,  Class
A-R, Class A-LR and Class M Certificates" herein.
    For  federal income tax purposes, the Trust  Estate will consist of two real
estate mortgage investment conduits (each a "REMIC" or, in the alternative,  the
"Lower-Tier  REMIC" and the "Upper-Tier REMIC," respectively). As described more
fully herein and in the Prospectus, 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
A-11, Class A-12, Class A-13, Class A-14, Class A-15, Class A-16, Class A-17 and
Class A-18 Certificates, the Class M  Certificates and the Class B  Certificates
will  constitute "regular interests"  in the Upper-Tier REMIC  and the Class A-R
and Class  A-LR Certificates  will constitute  the "residual  interests" in  the
Upper-Tier  REMIC and Lower-Tier REMIC,  respectively. PROSPECTIVE INVESTORS ARE
CAUTIONED THAT THE CLASS  A-R CERTIFICATEHOLDER'S REMIC  TAXABLE INCOME AND  THE
TAX LIABILITY THEREON WILL, AND THE CLASS A-LR CERTIFICATEHOLDER'S REMIC TAXABLE
INCOME  AND THE  TAX LIABILITY  THEREON MAY,  EXCEED CASH  DISTRIBUTIONS TO SUCH
HOLDERS DURING CERTAIN PERIODS, IN WHICH EVENT SUCH HOLDERS MUST HAVE SUFFICIENT
ALTERNATIVE  SOURCES  OF  FUNDS  TO   PAY  SUCH  TAX  LIABILITY.  See   "Summary
Information--Federal  Income Tax Status" and "Federal Income Tax Considerations"
herein  and  "Certain  Federal  Income  Tax  Consequences--Federal  Income   Tax
Consequences for REMIC Certificates" in the Prospectus.
    The  Class A Certificates (other than the Class A-18 Certificates) represent
nineteen Subclasses of a Class and the Class M Certificates represent a Class of
a separate Series of  Certificates being offered by  the Seller pursuant to  the
Prospectus  dated February 5, 1993  accompanying this Prospectus Supplement. Any
prospective investor  should not  purchase  any Offered  Certificates  described
herein  unless  it  shall  have  received  the  Prospectus  and  this Prospectus
Supplement. The  Prospectus  shall  not  be  considered  complete  without  this
Prospectus  Supplement. The Prospectus  contains important information regarding
this offering which is not contained herein, and prospective investors are urged
to read, in full, the Prospectus and this Prospectus Supplement.
                          ----------------------------
    UNTIL MAY  25,  1993, ALL  DEALERS  EFFECTING TRANSACTIONS  IN  THE  OFFERED
CERTIFICATES, WHETHER OR NOT PARTICIPATING IN THIS DISTRIBUTION, MAY BE REQUIRED
TO  DELIVER A PROSPECTUS SUPPLEMENT  AND PROSPECTUS. THIS IS  IN ADDITION TO THE
OBLIGATION OF DEALERS  TO DELIVER  A PROSPECTUS SUPPLEMENT  AND PROSPECTUS  WHEN
ACTING   AS  UNDERWRITERS  AND  WITH  RESPECT  TO  THEIR  UNSOLD  ALLOTMENTS  OR
SUBSCRIPTIONS.
 
                                      S-2
<PAGE>
                               TABLE OF CONTENTS
 
                             PROSPECTUS SUPPLEMENT
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
Summary Information........................................................................................  S-4
Description of the Certificates............................................................................  S-22
  General..................................................................................................  S-22
  Book-Entry Registration..................................................................................  S-22
  Definitive Certificates..................................................................................  S-23
  Distributions............................................................................................  S-24
  Interest.................................................................................................  S-26
  Determination of LIBOR...................................................................................  S-32
  Principal (Including Prepayments)........................................................................  S-33
    CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS A CERTIFICATES....................................  S-33
    CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS M CERTIFICATES....................................  S-36
    ALLOCATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS A AND CLASS M CERTIFICATES.........................  S-37
    PRINCIPAL PAYMENT CHARACTERISTICS OF THE PAC CERTIFICATES, THE PAC COMPONENTS, THE SUPPORT CERTIFICATES
     AND THE SUPPORT COMPONENTS............................................................................  S-47
  Additional Rights of the Class A-R and Class A-LR Certificateholders.....................................  S-49
  Periodic Advances........................................................................................  S-50
  Restrictions on Transfer of the Class A-6, Class A-R, Class A-LR and Class M Certificates................  S-51
  Reports..................................................................................................  S-52
  Subordination of Class M and Class B Certificates........................................................  S-52
    ALLOCATION OF LOSSES...................................................................................  S-53
Description of the Mortgage Loans..........................................................................  S-56
  Mandatory Repurchase or Substitution of Mortgage Loans...................................................  S-62
  Optional Repurchase of Defaulted Mortgage Loans..........................................................  S-62
Origination, Delinquency and Foreclosure Experience........................................................  S-63
  Loan Origination.........................................................................................  S-63
  Delinquency and Foreclosure Experience...................................................................  S-63
Prepayment and Yield Considerations........................................................................  S-67
  Sensitivity of the Class A-3 Certificates................................................................  S-76
  Sensitivity of the Class A-6 and Class A-16 Certificates.................................................  S-77
Pooling and Servicing Agreement............................................................................  S-79
  General..................................................................................................  S-79
  Voting...................................................................................................  S-79
  Trustee..................................................................................................  S-80
  Servicing Compensation and Payment of Expenses...........................................................  S-80
  Optional Termination.....................................................................................  S-80
Federal Income Tax Considerations..........................................................................  S-80
  Regular Certificates.....................................................................................  S-81
  Residual Certificates....................................................................................  S-81
ERISA Considerations.......................................................................................  S-83
Legal Investment...........................................................................................  S-84
Secondary Market...........................................................................................  S-84
Underwriting...............................................................................................  S-84
Legal Matters..............................................................................................  S-85
Use of Proceeds............................................................................................  S-85
Ratings....................................................................................................  S-85
Index of Significant Prospectus Supplement Definitions.....................................................  S-86
</TABLE>
 
                                      S-3
<PAGE>
                              SUMMARY INFORMATION
 
    THE  FOLLOWING IS  QUALIFIED IN  ITS ENTIRETY  BY REFERENCE  TO THE DETAILED
INFORMATION APPEARING  ELSEWHERE  IN  THIS  PROSPECTUS  SUPPLEMENT  AND  IN  THE
ACCOMPANYING  PROSPECTUS  (THE  "PROSPECTUS"). CAPITALIZED  TERMS  USED  IN THIS
PROSPECTUS SUPPLEMENT  AND  NOT  OTHERWISE  DEFINED  HEREIN  HAVE  THE  MEANINGS
ASSIGNED  IN  THE PROSPECTUS.  SEE "INDEX  OF SIGNIFICANT  PROSPECTUS SUPPLEMENT
DEFINITIONS" HEREIN AND "INDEX OF SIGNIFICANT DEFINITIONS" IN THE PROSPECTUS.
 
<TABLE>
<S>                                 <C>
Title of Securities...............  Mortgage Pass-Through Certificates,  Series 1993-9  (the
                                    "Series 1993-9 Certificates" or the "Certificates").
 
Seller............................  The  Prudential Home  Mortgage Securities  Company, Inc.
                                    (the "Seller"). See "The Seller" in the Prospectus.
 
Servicer..........................  The Prudential  Home  Mortgage  Company,  Inc.  (in  its
                                    capacity   as   servicer,  the   "Servicer;"  otherwise,
                                    "PHMC"). See  "Servicing  of  the  Mortgage  Loans"  and
                                    "PHMC--General" in the Prospectus.
 
Trustee...........................  First  Trust  National Association,  a  national banking
                                    association (the "Trustee"). See "Pooling and  Servicing
                                    Agreement--Trustee" in this Prospectus Supplement.
 
Rating of Certificates............  It  is  a  condition  to the  issuance  of  the  Class A
                                    Certificates offered by  this Prospectus Supplement  and
                                    the  Prospectus that they shall have been rated "Aaa" by
                                    Moody's Investors Service, Inc. ("Moody's") and "AAA" by
                                    Fitch  Investors  Service,  Inc.  ("Fitch").  It  is   a
                                    condition  to the  issuance of the  Class M Certificates
                                    that they shall  have been  rated "Aa2"  by Moody's  and
                                    "AA"  by Fitch. The ratings by Moody's and Fitch are not
                                    recommendations to buy, sell  or hold such  Certificates
                                    and may be subject to revision or withdrawal at any time
                                    by  the  assigning  rating agency.  The  ratings  do not
                                    address the possibility that,  as a result of  principal
                                    prepayments,  holders of such Certificates may receive a
                                    lower than anticipated yield. See
                                    "--Effects of  Prepayments on  Investment  Expectations"
                                    below and "Ratings" in this Prospectus Supplement.
 
Description of Certificates.......  The  Series 1993-9 Certificates will  consist of Class A
                                    Certificates,  Class   M   Certificates  and   Class   B
                                    Certificates.  The Class A Certificates represent a type
                                    of interest  referred to  in the  Prospectus as  "Senior
                                    Certificates"  and the Class M  and Class B Certificates
                                    represent  a  type  of  interest  referred  to  in   the
                                    Prospectus  as  "Subordinated  Certificates."  As  these
                                    designations  suggest,  the  Class  A  Certificates  are
                                    entitled  to a certain priority, relative to the Class M
                                    and Class B Certificates,  in right of distributions  on
                                    the   mortgage  loans   underlying  the   Series  1993-9
                                    Certificates (the  "Mortgage  Loans").  As  between  the
                                    Class  M Certificates and the  Class B Certificates, the
                                    Class M Certificates are entitled to a certain  priority
                                    in  right of  distributions on  the Mortgage  Loans. See
                                    "--Distributions of Principal and Interest" below.
 
                                    Initially, the Class A Certificates will evidence in the
                                    aggregate   an    approximate   95.25%    (approximately
                                    $383,708,000)   undivided  interest   in  the  aggregate
                                    initial principal  balance of  the Mortgage  Loans;  the
                                    Class  M Certificates will evidence  in the aggregate an
</TABLE>
 
                                      S-4
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    approximate 1.25%  (approximately $5,036,000)  undivided
                                    interest  in the aggregate  initial principal balance of
                                    the Mortgage Loans;  and the Class  B Certificates  will
                                    evidence   in   the  aggregate   an   approximate  3.50%
                                    (approximately $14,100,415)  undivided interest  in  the
                                    aggregate  initial  principal  balance  of  the Mortgage
                                    Loans. The  relative  interests in  the  aggregate  out-
                                    standing   principal  balance  of   the  Mortgage  Loans
                                    represented  by  the  Class  A,  Class  M  and  Class  B
                                    Certificates  are subject to change over time because of
                                    the disproportionate allocation  of certain  unscheduled
                                    principal  payments to  the Class  A Certificates  for a
                                    specified period and  the allocation  of certain  losses
                                    and certain shortfalls first to the Class B Certificates
                                    until  the aggregate principal  balance thereof has been
                                    reduced to zero  and then  to the  Class M  Certificates
                                    until  the aggregate principal  balance thereof has been
                                    reduced to zero, prior to the allocation of such  losses
                                    and shortfalls to the Class A Certificates, as discussed
                                    in  "--Distributions of  Principal and  of Interest" and
                                    "--Credit Enhancement" below.
 
                                    The  Class  A  Certificates   will  consist  of   twenty
                                    subclasses,  designated  as  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  A-11, Class
                                    A-12, Class A-13,  Class A-14, Class  A-15, Class  A-16,
                                    Class  A-17,  Class  A-18,  Class  A-R  and  Class  A-LR
                                    Certificates. The  Class  M  Certificates  will  not  be
                                    divided into subclasses. The Class A Certificates (other
                                    than   the   Class  A-18   Certificates)  and   Class  M
                                    Certificates  are   referred  to   in  this   Prospectus
                                    Supplement  as the "Offered Certificates." References to
                                    the "Subordinated Certificates" are  to the Class M  and
                                    Class  B  Certificates.  The  Class  A-18  and  Class  B
                                    Certificates are not offered hereby and may be  retained
                                    or sold by the Seller.
 
                                    The  Class A-1, Class  A-2, Class A-4,  Class A-5, Class
                                    A-7, Class A-8,  Class A-9,  Class A-10  and Class  A-11
                                    Certificates are planned amortization class certificates
                                    and  are  referred to  herein  collectively as  the "PAC
                                    Certificates." The Class A-12 Certificates are  referred
                                    to  herein  as the  "Scheduled Certificates."  The Class
                                    A-15 and Class A-16 Certificates are referred to  herein
                                    as  the  "Scheduled Companion  Certificates."  The Class
                                    A-17 Certificates are referred to herein as the "Compan-
                                    ion Certificates."  The Class  A-12, Class  A-15,  Class
                                    A-16  and Class A-17 Certificates are referred to herein
                                    collectively  as  the  "Support  Certificates"   because
                                    payments   of  principal   allocated  to   the  Class  A
                                    Certificates in excess of amounts resulting from certain
                                    prepayment levels will  be paid  to the  holders of  the
                                    Support  Certificates,  while  such  Certificates remain
                                    outstanding, prior to being paid  to the holders of  the
                                    PAC Certificates.
 
                                    The  Class A-13 and Class A-14 Certificates will exhibit
                                    principal   payment   characteristics   of   both    PAC
                                    Certificates  and Support  Certificates. Solely  for the
                                    purpose of  determining  distributions in  reduction  of
                                    principal  balance,  the  Class  A-13  Certificates will
</TABLE>
 
                                      S-5
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    be deemed to  consist of three  components as  described
                                    herein:  two PAC  Components and  a Scheduled Component.
                                    Solely for the purpose  of determining distributions  in
                                    reduction   of   principal  balance,   the   Class  A-14
                                    Certificates will be deemed to consist of two components
                                    as described  herein: a  PAC Component  and a  Scheduled
                                    Companion  Component.  The Scheduled  Component  and the
                                    Scheduled Companion  Component  are referred  to  herein
                                    collectively as the "Support Components." The owner of a
                                    Class  A-13 or  Class A-14  Certificate will  not have a
                                    severable interest  in any  component but  will have  an
                                    undivided  interest  in  the entire  subclass.  The "PAC
                                    Components" have  characteristics  similar  to  the  PAC
                                    Certificates   and   the   "Support   Components"   have
                                    characteristics similar to the Support Certificates. The
                                    "Scheduled Component" has characteristics similar to the
                                    Scheduled  Certificates  and  the  "Scheduled  Companion
                                    Component"  has characteristics similar to the Scheduled
                                    Companion  Certificates.   See   "Description   of   the
                                    Certificates--Allocation  of Amount to be Distributed to
                                    the Class A  and Class  M Certificates"  and"--Principal
                                    Payment Characteristics of the PAC Certificates, the PAC
                                    Components,  the  Support Certificates  and  the Support
                                    Components" in this Prospectus Supplement.
 
                                    The Class A-17 Certificates are also referred to  herein
                                    as  "Accrual Certificates" because, unless the principal
                                    balances of  the  Subordinated  Certificates  have  been
                                    reduced  to  zero,  the  interest  that  accrues  on the
                                    principal balance of such subclass  will not be paid  to
                                    such  subclass  on any  Distribution Date  but, instead,
                                    such amounts will be added  to the principal balance  of
                                    such subclass. See "Description of the
                                    Certificates--Principal (Including Prepayments)" in this
                                    Prospectus Supplement.
 
                                    The  Offered Certificates have the approximate aggregate
                                    initial principal  balances set  forth on  the cover  of
                                    this  Prospectus Supplement,  except that  the Class A-3
                                    and  Class  A-6  Certificates  will  have  no  principal
                                    balance.  Any difference between the aggregate principal
                                    balance of the Class  A and Class  M Certificates as  of
                                    the  date of issuance of  the Series 1993-9 Certificates
                                    and the approximate aggregate initial principal  balance
                                    of  the Class A and Class  M Certificates as of the date
                                    of this Prospectus Supplement will not, with respect  to
                                    the  Class  A Certificates  (other  than the  Class A-18
                                    Certificates),  exceed  5%  of  the  aggregate   initial
                                    principal balance of such Class A Certificates stated on
                                    the  cover  of  this  Prospectus  Supplement  and,  with
                                    respect to the Class M Certificates, will depend on  the
                                    final   subordination  levels  for   the  Series  1993-9
                                    Certificates. Any difference  allocated to  the Class  A
                                    Certificates  will be allocated  among the subclasses of
                                    Class A  Certificates other  than the  Class A-3,  Class
                                    A-6, Class A-18, Class A-R and Class A-LR Certificates.
 
Forms of Certificates;
  Denominations...................  BOOK-ENTRY  FORM.  The  Offered Certificates, other than
                                    the Class  A-3, Class  A-6, Class  A-R, Class  A-LR  and
                                    Class M Certificates, will be issued in book-entry form,
                                    through the facilities of
</TABLE>
 
                                      S-6
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    The Depository Trust Company ("DTC"). These Certificates
                                    are   referred  to,  collectively,  in  this  Prospectus
                                    Supplement as the "Book-Entry Certificates." An investor
                                    in  a  subclass  of  Book-Entry  Certificates  will  not
                                    receive   a   physical   certificate   representing  its
                                    ownership  interest  in  such  Book-Entry  Certificates,
                                    except under extraordinary circumstances, which are dis-
                                    cussed  in "Description  of the Certificates--Definitive
                                    Certificates" in  this Prospectus  Supplement.  Instead,
                                    DTC  will effect payments and  transfers by means of its
                                    electronic  recordkeeping   services,   acting   through
                                    certain  participating organizations. This may result in
                                    certain  delays  in  receipt  of  distributions  by   an
                                    investor  and  may  restrict  an  investor's  ability to
                                    pledge its securities.  The rights of  investors in  the
                                    Book-Entry  Certificates may generally only be exercised
                                    through DTC  and  its participating  organizations.  See
                                    "Description of the Certificates--Book-Entry
                                    Registration" in this Prospectus Supplement.
 
                                    The  Book-Entry Certificates  will be  issued in minimum
                                    denominations of $100,000 initial principal balance. Any
                                    amounts in  excess  of  $100,000  will  be  in  integral
                                    multiples  of  $1,000  initial  principal  balance.  See
                                    "Description  of  the  Certificates--General"  in   this
                                    Prospectus Supplement.
 
                                    CERTIFICATED FORM.  The Class A-3, Class A-6, Class A-R,
                                    Class  A-LR and Class M  Certificates will be offered in
                                    fully registered,  certificated  form.  Accordingly,  an
                                    investor  in any such subclass or class will be issued a
                                    physical   certificate   representing   its    ownership
                                    interest.  The Class A-3 Certificates  will be issued in
                                    minimum denominations  of  $3,300,000  initial  notional
                                    amount.  Any amounts in excess  of $3,300,000 will be in
                                    integral multiples of  $1 initial  notional amount.  The
                                    initial  notional amount  of the  Class A-3 Certificates
                                    will equal  approximately  $20,812,720.  The  Class  A-6
                                    Certificates  will be issued in minimum denominations of
                                    $855,000 initial notional amount; provided however  that
                                    Class   A-6  Certificates  will  be  issued  in  minimum
                                    denominations of  $100,000  initial notional  amount  to
                                    institutional  investors who  deliver to  the Trustee an
                                    affidavit concerning  certain  matters  related  to  the
                                    financial   sophistication   and  net   worth   of  such
                                    institution. Any  amounts  in  excess  of  $855,000  (or
                                    $100,000,  as  the  case  may be)  will  be  in integral
                                    multiples of  $1 initial  notional amount.  The  initial
                                    notional amount of the Class A-6 Certificates will equal
                                    approximately   $11,984,250.  See  "Description  of  the
                                    Certificates--Interest" in  this Prospectus  Supplement.
                                    The  notional amount does not entitle the holders of the
                                    Class A-3 or Class A-6 Certificates to any distributions
                                    of principal.
 
                                    The Class  M  Certificates  will be  issued  in  minimum
                                    denominations of $100,000 initial principal balance. Any
                                    amounts  in  excess  of  $100,000  will  be  in integral
                                    multiples of $1,000 initial principal balance. The Class
                                    A-R and Class A-LR Certificates will each be issued as a
                                    single certificate with a denomination of $1,000 initial
                                    principal  balance.   See  "Description   of  the   Cer-
                                    tificates--General" in this Prospectus Supplement.
</TABLE>
 
                                      S-7
<PAGE>
 
<TABLE>
<S>                                 <C>
Mortgage Loans....................  MORTGAGE  LOAN DATA.  The  Mortgage Loans, which are the
                                    source of distributions to holders of the Series  1993-9
                                    Certificates,  are expected to  consist of conventional,
                                    fixed interest rate, monthly pay, fully amortizing, one-
                                    to four-family, residential first mortgage loans, having
                                    original terms to  stated maturity  of approximately  15
                                    years,  which may include loans secured by shares issued
                                    by cooperative housing corporations. The Mortgage  Loans
                                    are  expected  to  have the  further  specifications set
                                    forth in  the  following  table and  under  the  heading
                                    "Description  of the Mortgage  Loans" in this Prospectus
                                    Supplement.
 
- -------------------------------------------------------------------------------------------SELECTED
  MORTGAGE LOAN DATA
(AS OF THE CUT-OFF DATE)
 
Cut-Off Date:                         February 1, 1993
Number of Mortgage Loans:             1,510
Aggregate Unpaid Principal
  Balance 1:                          $402,844,415
 
Range of Unpaid Principal             $25,927 to $994,453
  Balances 1:
Average Unpaid Principal Balance 1:   $266,784
 
Range of Interest Rates:              7.750% to 9.875%
Weighted Average Interest Rate 1:     8.227%
 
Range of Remaining  Terms to  Stated
  Maturity:                           157 months to 180 months
Weighted  Average Remaining  Term to
  Stated Maturity 1:                  178 months
 
Range  of   Original   Loan-to-Value
  Ratios:                             11.43% to 90.00%
Weighted  Average  Original Loan-to-
  Value Ratio 1:                      66%
 
Geographic Concentration of
  Mortgaged   Properties    Securing
  Mortgage  Loans in Excess of 5% of
  the  Aggregate  Unpaid   Principal
  Balance(1):                         California     53.25%
                                      New York    10.29%
                                      New Jersey   5.64%
 
1 approximate
- --------------------------------------------------------------------------------------------
</TABLE>
 
<TABLE>
<S>                                 <C>
                                    CHANGES  TO POOL.  A number of Mortgage Loans may be re-
                                    moved from the pool, or  a substitution may be made  for
                                    certain  Mortgage Loans,  in advance of  the issuance of
                                    the Series  1993-9 Certificates  (which is  expected  to
                                    occur on or about February 26, 1993). This may result in
                                    changes in certain of the pool characteristics set forth
                                    in  the  table above  and  elsewhere in  this Prospectus
                                    Supplement. See "Description of  the Mortgage Loans"  in
                                    this Prospectus Supplement.
</TABLE>
 
                                      S-8
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Subsequent   to  the  issuance   of  the  Series  1993-9
                                    Certificates, certain Mortgage Loans may be removed from
                                    the  pool   through   repurchase   or,   under   certain
                                    circumstances,   substitution  by  the  Seller,  if  the
                                    Mortgage  Loans   are  discovered   to  have   defective
                                    documentation or if they otherwise do not conform to the
                                    standards  established  by the  Seller's representations
                                    and  warranties  concerning  the  Mortgage  Loans.   See
                                    "Description of the Mortgage Loans--Mandatory Repurchase
                                    or  Substitution of  Mortgage Loans"  in this Prospectus
                                    Supplement. The  Seller  may also  repurchase  defaulted
                                    Mortgage   Loans.  See  "Description   of  the  Mortgage
                                    Loans--Optional Repurchase of Defaulted Mortgage  Loans"
                                    in this Prospectus Supplement.
 
                                    The  Servicer is entitled, subject to certain conditions
                                    relating to  the then-remaining  size  of the  pool,  to
                                    purchase  all outstanding Mortgage Loans in the pool and
                                    thereby effect  early retirement  of the  Series  1993-9
                                    Certificates. See "Pooling and Servicing
                                    Agreement--Optional   Termination"  in  this  Prospectus
                                    Supplement.
 
Distributions of Principal and
  Interest........................  DISTRIBUTIONS IN  GENERAL. Distributions  on the  Series
                                    1993-9 Certificates will be made on the 25th day of each
                                    month  or, if  such day  is not  a business  day, on the
                                    succeeding business day (each  such date is referred  to
                                    in this Prospectus Supplement as a "Distribution Date"),
                                    commencing  in March 1993,  to holders of  record at the
                                    close of  business  on  the last  business  day  of  the
                                    preceding  month. In the case of the Book-Entry Certifi-
                                    cates, the holder of record will be DTC.
 
                                    The   amount   available   for   distribution   on   any
                                    Distribution  Date is  primarily a  function of  (i) the
                                    amount remitted by mortgagors  of the Mortgage Loans  in
                                    payment of their scheduled installments of principal and
                                    interest,  (ii) the  amount of  prepayments made  by the
                                    mortgagors and (iii) proceeds  from liquidations of  de-
                                    faulted Mortgage Loans.
 
                                    On  any  Distribution  Date,  holders  of  the  Class  A
                                    Certificates will be entitled to receive all amounts due
                                    them before any distributions are made to holders of the
                                    Class M and  Class B Certificates  on that  Distribution
                                    Date.  The amount that is available to be distributed on
                                    any Distribution  Date will  be allocated  first to  pay
                                    interest  due holders  of the  Class A  Certificates and
                                    then, if the amount  available for distribution  exceeds
                                    the  amount  of  interest  due holders  of  the  Class A
                                    Certificates,  to  reduce   the  outstanding   principal
                                    balance  of the Class A Certificates. Amounts accrued in
                                    respect of interest on the Class A-17 Certificates  will
                                    be   distributed  as  a  reduction  of  the  outstanding
                                    principal balance  of  the  Class  A  Certificates  then
                                    entitled  to distributions of  principal, rather than as
                                    interest to the holders of the Class A-17  Certificates,
                                    unless   the  principal  balances  of  the  Subordinated
                                    Certificates have been reduced  to zero. The  likelihood
                                    that  a holder of  a particular subclass  of the Class A
                                    Certificates (other  than the  Class  A-3 or  Class  A-6
                                    Certificates)  will  receive principal  distributions on
                                    any Distribution  Date will  depend on  the priority  in
                                    which such subclass is entitled to
</TABLE>
 
                                      S-9
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    principal  distributions, as set forth under the heading
                                    "Description of  the Certificates--Principal  (Including
                                    Prepayments)-- Allocation of Amount to be Distributed to
                                    the Class A and Class M Certificates" in this Prospectus
                                    Supplement.
 
                                    After  all amounts due  on the Class  A Certificates for
                                    any  Distribution  Date  have  been  paid,  the   amount
                                    remaining  will be distributed,  in the following order,
                                    to  (i)  pay  interest  due  holders  of  the  Class   M
                                    Certificates,  (ii)  reduce  the  outstanding  principal
                                    balance of the Class M Certificates, (iii) pay  interest
                                    due  to the holders of the Class B Certificates and (iv)
                                    reduce the outstanding principal balance of the Class  B
                                    Certificates.
 
                                    If  any  mortgagor  is  delinquent  in  the  payment  of
                                    principal or interest on a  Mortgage Loan in any  month,
                                    the  Servicer  will  advance  such  payment  unless  the
                                    Servicer determines that the delinquent amount will  not
                                    be  recoverable by it from liquidation proceeds or other
                                    recoveries   on   the   related   Mortgage   Loan.   See
                                    "Description  of the Certificates--Periodic Advances" in
                                    this Prospectus Supplement.
 
                                    INTEREST DISTRIBUTIONS. The amount of interest to  which
                                    holders   of   each   subclass  or   class   of  Offered
                                    Certificates, other than  the Class A-3,  Class A-6  and
                                    Class  A-LR  Certificates, will  be entitled  each month
                                    (and the amount of interest to be added to the principal
                                    balance of the Accrual Certificates) is calculated based
                                    on the outstanding principal balance of that subclass or
                                    class, as  of the  related Distribution  Date.  Interest
                                    will  accrue each month  on each such  subclass or class
                                    according  to  the  following  formula:  1/12th  of  the
                                    pass-through  rate for such subclass or class multiplied
                                    by the outstanding principal balance of such subclass or
                                    class as of the related Distribution Date before  taking
                                    into   account  distributions  of   principal  for  such
                                    Distribution Date. The pass-through  rate for each  such
                                    subclass (other than the Class A-5, Class A-15 and Class
                                    A-16  Certificates) or class is the percentage set forth
                                    on  the  cover  of   this  Prospectus  Supplement.   The
                                    pass-through  rate  for the  Class  A-5, Class  A-15 and
                                    Class A-16 Certificates will be determined as  described
                                    below.
 
                                    The  amount of  interest to  which holders  of the Class
                                    A-3, Class A-6 and Class A-LR Certificates are  entitled
                                    each month is calculated based on a "notional amount." A
                                    notional  amount  does  not entitle  holders  to receive
                                    distributions of principal on the basis of such notional
                                    amount, but is  used for  the purpose  of computing  the
                                    amount  of interest  accrued on each  such subclass. The
                                    notional  amounts  for  the  Class  A-3  and  Class  A-6
                                    Certificates  are  calculated based  on  the sum  of the
                                    indicated  percentages  of  the  respective  outstanding
                                    principal  balances of certain  other subclasses. In the
                                    case of the Class A-LR Certificate, the notional  amount
                                    is an amount other than its actual outstanding principal
                                    balance. The methods of determining the notional amounts
                                    of  the Class A-3, Class A-6 and Class A-LR Certificates
                                    are described on page S-29. Interest will accrue on  the
                                    Class    A-3    Certificates    each    month    in   an
</TABLE>
 
                                      S-10
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    amount equal to the product  of (i) 1/12th of 7.50%  and
                                    (ii)  the notional amount of the Class A-3 Certificates.
                                    Interest will accrue on the Class A-6 Certificates  each
                                    month in an amount equal to the product of (i) 1/12th of
                                    the  pass-through  rate  in  effect  for  the respective
                                    one-month period  for  the  Class  A-6  Certificates  as
                                    described  below  and (ii)  the  notional amount  of the
                                    Class A-6  Certificates.  Interest will  accrue  on  the
                                    Class
                                    A-LR  Certificate each month  in an amount  equal to the
                                    product of (i)  1/12th of  7.50% and  (ii) the  notional
                                    amount of the Class A-LR Certificate.
 
                                    Interest  will accrue on the Class A-5, Class A-6, Class
                                    A-15 and Class A-16  Certificates during each  one-month
                                    period  commencing  on the  25th day  of each  month and
                                    ending on the 24th day  of the following month (each,  a
                                    "LIBOR  Based  Interest  Accrual  Period").  The initial
                                    LIBOR Based  Interest Accrual  Period will  commence  on
                                    February 25, 1993. Until
                                    the  LIBOR Based  Interest Accrual  Period commencing on
                                    February 25, 1995, the  pass-through rate for the  Class
                                    A-5  Certificates  will be  a  fixed rate  of  5.00% per
                                    annum.  During  each  subsequent  LIBOR  Based  Interest
                                    Accrual  Period, the pass-through rate for the Class A-5
                                    Certificates will  be  a per  annum  rate equal  to  the
                                    lesser  of (i) 0.65% plus LIBOR and (ii) 10.0001%. Until
                                    the LIBOR Based  Interest Accrual  Period commencing  on
                                    February  25, 1995, the pass-through  rate for the Class
                                    A-6 Certificates will  be a fixed  rate of 20.0005%  per
                                    annum.  During  each  subsequent  LIBOR  Based  Interest
                                    Accrual Period, the pass-through rate for the Class  A-6
                                    Certificates  will  be a  per annum  rate, subject  to a
                                    minimum rate of 0% and a maximum rate of 37.4005%, equal
                                    to (i)  37.4005%  minus (ii)  the  product of  4.00  and
                                    LIBOR.  As a result of this calculation, for LIBOR Based
                                    Interest Accrual Periods commencing on or after February
                                    25, 1995,  increasing levels  of  LIBOR will  produce  a
                                    reduced pass-through rate for the Class A-6 Certificates
                                    (subject  to the minimum  rate), while decreasing levels
                                    of LIBOR  will produce  an increased  pass-through  rate
                                    (subject  to the maximum rate). During the initial LIBOR
                                    Based Interest Accrual Period, the pass-through rate for
                                    the  Class  A-15  Certificates  will  be   approximately
                                    4.4375%  per annum.  During each  subsequent LIBOR Based
                                    Interest Accrual Period, the  pass-through rate for  the
                                    Class  A-15 Certificates will be  a per annum rate equal
                                    to the lesser of  (i) 1.25% plus  LIBOR and (ii)  9.75%.
                                    During  the initial LIBOR Based Interest Accrual Period,
                                    the pass-through rate  for the  Class A-16  Certificates
                                    will  be approximately  17.7083% per  annum. During each
                                    subsequent LIBOR  Based  Interest  Accrual  Period,  the
                                    pass-through  rate for the  Class A-16 Certificates will
                                    be a per annum rate, subject to a minimum rate of 0% and
                                    a maximum  rate of  approximately 28.33%,  equal to  (i)
                                    approximately   28.33%   minus  (ii)   the   product  of
                                    approximately 3.33  and  LIBOR.  As  a  result  of  this
                                    calculation,  increasing levels of  LIBOR will produce a
                                    reduced pass-
</TABLE>
 
                                      S-11
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    through rate for the Class A-16 Certificates (subject to
                                    the minimum rate), while decreasing levels of LIBOR will
                                    produce an increased pass-through  rate (subject to  the
                                    maximum rate).
 
                                    Holders   of   each   subclass  or   class   of  Offered
                                    Certificates, other than the Accrual Certificates,  will
                                    be entitled to receive distributions of interest on each
                                    Distribution  Date. Holders of  the Accrual Certificates
                                    will  not  be  entitled  to  receive  distributions   of
                                    interest   unless   the   principal   balances   of  the
                                    Subordinated Certificates have been reduced to zero. See
                                    "Description  of  the  Certificates--Interest"  in  this
                                    Prospectus  Supplement. Prior to  such event, the amount
                                    of interest that accrues on the principal balance of the
                                    Accrual Certificates will not be distributed as interest
                                    to such holders but instead will be added to the princi-
                                    pal balance of the  Accrual Certificates. Amounts  which
                                    have   accrued  in  respect  of  interest  but  are  not
                                    distributable  on  the  Accrual  Certificates  will   be
                                    distributed  in reduction  of the  principal balances of
                                    the subclasses of Class A Certificates then entitled  to
                                    payments  of principal,  as described  under the heading
                                    "Description of  the Certificates--Principal  (Including
                                    Prepayments)--Allocation  of Amount to be Distributed to
                                    the Class A and Class M Certificates" in this Prospectus
                                    Supplement.
 
                                    When mortgagors prepay  principal or  when principal  is
                                    recovered  through foreclosures or other liquidations of
                                    defaulted Mortgage Loans,  a full  month's interest  for
                                    the  month of  payment or  recovery may  not be  paid or
                                    recovered, resulting  in interest  shortfalls. Any  such
                                    shortfalls  that  result from  principal  prepayments IN
                                    FULL will be offset  from aggregate servicing fees  that
                                    would  otherwise  be  payable  to  the  Servicer  on any
                                    Distribution Date, but only  to the extent of  servicing
                                    fees  payable  with respect  to that  Distribution Date.
                                    Shortfalls in  collections  of interest  resulting  from
                                    principal prepayments in full, to the extent they exceed
                                    the aggregate servicing fees, will be allocated pro rata
                                    based on outstanding principal balance among all classes
                                    of the Series 1993-9 Certificates, and will be allocated
                                    pro  rata based on interest accrued among the subclasses
                                    of Class A Certificates. Any shortfalls of interest that
                                    result from the timing of PARTIAL principal  prepayments
                                    or  liquidations of defaulted Mortgage Loans will not be
                                    offset by the servicing fees  and will not be  allocated
                                    pro  rata but instead will be borne first by the Class B
                                    Certificates, second  by the  Class M  Certificates  and
                                    finally by the Class A Certificates. See "Description of
                                    the Certificates--Subordination of the Class M and Class
                                    B Certificates" in this Prospectus Supplement.
 
                                    In  addition,  the  amount of  interest  required  to be
                                    distributed to holders of the Series 1993-9 Certificates
                                    will be reduced by a  portion of certain special  hazard
                                    losses,  fraud losses and bankruptcy losses attributable
                                    to interest.  See  "Credit Enhancement--Extent  of  Loss
                                    Coverage" below and "Description of the
                                    Certificates--Interest" in this Prospectus Supplement.
</TABLE>
 
                                      S-12
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    To the extent that the amount available for distribution
                                    on  any Distribution Date is  insufficient to permit the
                                    distribution  of  the   applicable  amount  of   accrued
                                    interest  on  the  Class  A  Certificates  (which amount
                                    includes any  interest  to  be added  to  the  principal
                                    balance  of  the Accrual  Certificates and  excludes any
                                    shortfalls  and  losses   allocable  to   the  Class   A
                                    Certificates   as  described  in   the  two  immediately
                                    preceding paragraphs),  the  amount of  interest  to  be
                                    distributed  (or to be added to the principal balance of
                                    the Accrual Certificates)  will be  allocated among  the
                                    outstanding  subclasses of Class A Certificates pro rata
                                    in accordance  with  their  respective  entitlements  to
                                    interest, and the amount of any deficiency will be added
                                    to  the amount of interest that the Class A Certificates
                                    are entitled  to  receive  (or  accrete)  on  subsequent
                                    Distribution  Dates.  No  interest will  accrue  on such
                                    deficiencies.
 
                                    To the extent that the amount available for distribution
                                    on any  Distribution  Date,  after the  payment  of  all
                                    amounts  due the Class A  Certificates has been made, is
                                    insufficient to permit distribution  in full of  accrued
                                    interest  on  the  Class  M  Certificates  (net  of  any
                                    shortfalls  and  losses   allocable  to   the  Class   M
                                    Certificates  as  described  above), the  amount  of any
                                    deficiency will be added to the amount of interest  that
                                    the  Class  M Certificates  are  entitled to  receive on
                                    subsequent Distribution Dates.  No interest will  accrue
                                    on such deficiencies.
 
                                    Interest  on the  Class A  Certificates and  the Class M
                                    Certificates will  be  calculated  on  the  basis  of  a
                                    360-day year consisting of twelve 30-day months.
 
                                    See  "Description of the Certificates--Interest" in this
                                    Prospectus Supplement.
 
                                    PRINCIPAL  DISTRIBUTIONS.    The  aggregate  amount   of
                                    principal   to  which   the  holders  of   the  Class  A
                                    Certificates (other  than the  Class A-3  and Class  A-6
                                    Certificates)  are entitled each month will be comprised
                                    of a percentage of  the scheduled payments of  principal
                                    on  the  Mortgage  Loans  and  a  percentage  of certain
                                    unscheduled payments of principal on the Mortgage Loans.
                                    The percentage of scheduled  payments will be equal,  on
                                    each  Distribution Date, to the fraction that represents
                                    the ratio of the  then-outstanding principal balance  of
                                    the  Class A  Certificates to  the aggregate outstanding
                                    principal balance of the Mortgage Loans (based on  their
                                    amortization  schedules then in  effect). The percentage
                                    of certain  unscheduled payments  will be  equal to  the
                                    percentage  described in the  preceding sentence plus an
                                    additional amount equal to a percentage of the principal
                                    otherwise distributable to the  holders of the  Subordi-
                                    nated  Certificates.  As  a  result,  the  percentage of
                                    certain   unscheduled   principal   payments   otherwise
                                    distributable   to  the  holders   of  the  Subordinated
                                    Certificates  that  is  instead  distributable  to   the
                                    holders  of the  Class A  Certificates will  be equal to
                                    100% during the first five years beginning on the  first
                                    Distribution Date and will decline during the subsequent
                                    four  years, as described under the heading "Description
                                    of the Certificates--
</TABLE>
 
                                      S-13
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Principal (Including Prepayments)--Calculation of Amount
                                    to be Distributed to the  Class A Certificates" in  this
                                    Prospectus  Supplement, until in year  ten and each year
                                    thereafter it  is equal  to zero.  On each  Distribution
                                    Date, the Subordinated Certificates will collectively be
                                    entitled to receive the percentages of the scheduled and
                                    certain   unscheduled  payments  of   principal  on  the
                                    Mortgage Loans equal,  in each  case, to  100% less  the
                                    applicable  percentage for the  Class A Certificates de-
                                    scribed above.
 
                                    Except   as   described   below   under   "--Effect   of
                                    Subordination Level on Principal Distributions," on each
                                    Distribution  Date,  the  Class M  Certificates  will be
                                    entitled to a portion of scheduled payments and  certain
                                    unscheduled  payments of principal on the Mortgage Loans
                                    allocable  to   the   Subordinated   Certificates   that
                                    represents  the ratio of  the then-outstanding principal
                                    balance   of   the   Class   M   Certificates   to   the
                                    then-outstanding  principal balance  of the Subordinated
                                    Certificates.
 
                                    The amount  that is  available for  distribution to  the
                                    holders  of the Class A Certificates on any Distribution
                                    Date as a distribution  of principal is  the sum of  (i)
                                    the  amount  remaining  after  deducting  the  amount of
                                    interest  distributable  on  the  Class  A  Certificates
                                    (including  the amount added to the principal balance of
                                    the  Accrual   Certificates)  from   the  total   amount
                                    collected that is available to be distributed to holders
                                    of  the Series 1993-9  Certificates on such Distribution
                                    Date and (ii) the amount  of interest, if any, added  to
                                    the  principal balance of  the Accrual Certificates with
                                    respect to  such Distribution  Date. Principal  will  be
                                    distributed  to the holders of  the Class A Certificates
                                    in accordance  with  the  payment  priorities  described
                                    under the heading "Description of the
                                    Certificates--Principal (Including Prepay-
                                    ments)--Allocation  of Amount  to be  Distributed to the
                                    Class A  and Class  M Certificates"  in this  Prospectus
                                    Supplement.
 
                                    The  amount that  is available  for distribution  to the
                                    holders of the Class M Certificates on any  Distribution
                                    Date  as  a  distribution  of  principal  is  the amount
                                    remaining after all interest and principal distributions
                                    due on the Class A Certificates and interest due on  the
                                    Class  M Certificates have been  deducted from the total
                                    amount collected that is available to be distributed  to
                                    holders of the Series 1993-9 Certificates.
 
                                    EFFECT    OF    SUBORDINATION    LEVEL    ON   PRINCIPAL
                                    DISTRIBUTIONS. In order to preserve the availability  of
                                    the  original subordination level  as protection against
                                    losses  on  the  Class  M  Certificates,  the  Class   B
                                    Certificates, as described below, may not be entitled on
                                    certain   Distribution   Dates   to   distributions   of
                                    principal.
 
                                    If on any Distribution  Date the percentage obtained  by
                                    dividing  the outstanding principal balance of the Class
                                    B Certificates by the  sum of the outstanding  principal
                                    balances   of  the  Class   A,  Class  M   and  Class  B
                                    Certificates is less than  such percentage was upon  the
                                    initial issuance of the Series 1993-9 Certificates, then
                                    the  Class  B  Certificates  will  not  be  entitled  to
                                    distributions
</TABLE>
 
                                      S-14
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    of principal on such Distribution  Date and the Class  M
                                    Certificates  will be  entitled to  all distributions of
                                    principal allocable to the Subordinated Certificates for
                                    such Distribution Date.
 
                                    In such case,  the Class M  Certificates will receive  a
                                    greater portion of scheduled and unscheduled payments of
                                    principal   on  the  Mortgage  Loans  allocable  to  the
                                    Subordinated Certificates than the Class M  Certificates
                                    would  have received  had the Class  B Certificates been
                                    entitled to their  portion of  such principal  payments.
                                    See    "Description   of   the   Certificates--Principal
                                    (Including Prepayments)--Calculation  of  Amount  to  be
                                    Distributed   to  the  Class  M  Certificates"  in  this
                                    Prospectus Supplement.
 
Credit Enhancement................  DESCRIPTION OF "SHIFTING-INTEREST"  SUBORDINATION.   The
                                    rights  of the  holders of  the Class  M Certificates to
                                    receive distributions will be subordinated to the rights
                                    of the holders  of the Class  A Certificates to  receive
                                    distributions,  to  the  extent  described  herein.  The
                                    rights of the  holders of  the Class  B Certificates  to
                                    receive distributions will be subordinated to the rights
                                    of  the holders of the Class  A and Class M Certificates
                                    to  receive  distributions,  to  the  extent   described
                                    herein.  This subordination provides a certain amount of
                                    protection to the  holders of the  Class A  Certificates
                                    (to  the extent of the subordination  of the Class M and
                                    Class B Certificates) and  the Class M Certificates  (to
                                    the  extent of the subordination of the Class B Certifi-
                                    cates)  against  delays  in  the  receipt  of  scheduled
                                    payments  of interest  and principal  and against losses
                                    associated with  the liquidation  of defaulted  Mortgage
                                    Loans  and certain losses  resulting from the bankruptcy
                                    of a mortgagor.
 
                                    The protection  afforded  the  holders of  the  Class  A
                                    Certificates  by  means  of this  subordination  will be
                                    effected in two ways: (i)  by the preferential right  of
                                    the  holders  of the  Class  A Certificates  to receive,
                                    prior to any distribution being made on any Distribution
                                    Date in respect of the Class M and Class B Certificates,
                                    the amounts of interest and principal due the holders of
                                    the Class A Certificates on such date and, if necessary,
                                    by  the  right  of   such  holders  to  receive   future
                                    distributions on the Mortgage Loans that would otherwise
                                    have  been allocated to  the holders of  the Class M and
                                    Class B Certificates and (ii)  by the allocation to  the
                                    holders  of  the Class  M  and Class  B  Certificates of
                                    certain  losses  resulting   from  the  liquidation   of
                                    defaulted Mortgage Loans or the bankruptcy of mortgagors
                                    prior to the allocation of such losses to the holders of
                                    the Class A Certificates.
 
                                    The  protection  afforded  the holders  of  the  Class M
                                    Certificates by means of this subordination will also be
                                    effected in two ways: (i)  by the preferential right  of
                                    the  holders  of the  Class  M Certificates  to receive,
                                    prior to any distribution being made on any Distribution
                                    Date in respect of the Class B Certificates, the amounts
                                    of interest and principal due the holders of the Class M
                                    Certificates on  such date  and,  if necessary,  by  the
                                    right of such holders to receive future distributions on
                                    the  Mortgage  Loans  that  would  otherwise  have  been
                                    allocated to the holders of the Class B Certificates and
                                    (ii) by the allocation to the
</TABLE>
 
                                      S-15
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    holders of the  Class B Certificates  of certain  losses
                                    resulting  from  the liquidation  of  defaulted Mortgage
                                    Loans or  the  bankruptcy  of mortgagors  prior  to  the
                                    allocation  of such losses to the holders of the Class M
                                    Certificates.
 
                                    In addition,  in order  to  increase the  period  during
                                    which  the principal balances of the Class M and Class B
                                    Certificates remain available  as credit enhancement  to
                                    the  Class A Certificates,  a disproportionate amount of
                                    prepayments  and  certain  unscheduled  recoveries  with
                                    respect  to the Mortgage Loans  will be allocated to the
                                    Class A Certificates. This allocation has the effect  of
                                    accelerating  the amortization  of the  Class A Certifi-
                                    cates while, in the absence of losses in respect of  the
                                    liquidation   of  defaulted  Mortgage  Loans  or  losses
                                    resulting from the bankruptcy of mortgagors,  increasing
                                    the  respective  percentage  interest  in  the principal
                                    balance  of  the   Mortgage  Loans   evidenced  by   the
                                    Subordinated Certificates.
 
                                    EXTENT  OF LOSS  COVERAGE.  Realized  losses on Mortgage
                                    Loans, other than  losses that are  (i) attributable  to
                                    "special  hazards" not insured  against under a standard
                                    hazard insurance  policy,  (ii)  incurred  on  defaulted
                                    Mortgage  Loans  as  to  which there  was  fraud  in the
                                    origination of such Mortgage Loans or (iii) attributable
                                    to certain actions  which may be  taken by a  bankruptcy
                                    court  in connection  with a Mortgage  Loan, including a
                                    reduction by a bankruptcy court of the principal balance
                                    of or  the  interest  rate  on a  Mortgage  Loan  or  an
                                    extension  of its maturity, will not be allocated to the
                                    Class  A  Certificates  until  the  date  on  which  the
                                    aggregate  principal balance of the  Class M and Class B
                                    Certificates  (which  aggregate   balance  is   expected
                                    initially  to  be  approximately  $19,136,415)  has been
                                    reduced to zero and will not be allocated to the Class M
                                    Certificates until  the  date  on  which  the  aggregate
                                    principal  balance  of the  Class B  Certificates (which
                                    aggregate  balance   is   expected   initially   to   be
                                    approximately $14,100,415) has been reduced to zero.
 
                                    With  respect to any Distribution Date subsequent to the
                                    first Distribution Date, the availability of the  credit
                                    enhancement   provided  by  the  Class  M  and  Class  B
                                    Certificates will be affected by the prior reduction  of
                                    the  principal  balances  of  the Class  M  and  Class B
                                    Certificates. Reduction of the principal balance of  the
                                    Class  M Certificates and the  Class B Certificates will
                                    result from (i)  the prior allocation  of losses due  to
                                    the  liquidation of defaulted  Mortgage Loans, including
                                    losses due to special hazards and fraud losses up to the
                                    respective limits  referred  to below,  (ii)  the  prior
                                    allocation of bankruptcy losses up to the limit referred
                                    to  below  and  (iii)  the  prior  receipt  of principal
                                    distributions by  the  holders  of such  class  or  sub-
                                    classes. As of the date of issuance of the Series 1993-9
                                    Certificates,  the  amount  of  losses  attributable  to
                                    special hazards,  fraud  and  bankruptcy  that  will  be
                                    absorbed   solely  by   the  holders  of   the  Class  B
                                    Certificates and then solely by the holders of the Class
                                    M Certificates will  be approximately  1.42%, 2.00%  and
                                    0.17%,  respectively, of the aggregate principal balance
                                    of
</TABLE>
 
                                      S-16
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    the Mortgage Loans as of the Cut-Off Date (approximately
                                    $5,705,356, $8,056,888 and  $689,136, respectively).  If
                                    losses  due  to  special  hazards,  fraud  or bankruptcy
                                    exceed any  of  such  amounts  prior  to  the  principal
                                    balances  of the Class M  and Class B Certificates being
                                    reduced to zero, such losses will be shared pro rata  by
                                    the  subclasses  of Class  A  Certificates, the  Class M
                                    Certificates and  the Class  B Certificates.  After  the
                                    principal   balances  of   the  Class  M   and  Class  B
                                    Certificates have been reduced to zero, such losses will
                                    be  shared  pro  rata  by  the  subclasses  of  Class  A
                                    Certificates  based on  their then-outstanding principal
                                    balances or in the  case of Accrual Certificates,  their
                                    initial  principal balance, if lower. Losses that reduce
                                    the principal balances  of the Class  A-1 and Class  A-2
                                    Certificates will result in a corresponding reduction of
                                    the  notional  amount  of  the  Class  A-3 Certificates.
                                    Losses that reduce  the principal balance  of the  Class
                                    A-5   Certificates  will   result  in   a  corresponding
                                    reduction of  the  notional  amount  of  the  Class  A-6
                                    Certificates.  See  "Description  of  the Certificates--
                                    Interest" in this  Prospectus Supplement. Under  certain
                                    circumstances, the limits set forth above may be reduced
                                    as described under "Description of the
                                    Certificates--Subordination  of the Class  M and Class B
                                    Certificates--Allocation of Losses"  in this  Prospectus
                                    Supplement.
 
                                    THE  YIELD TO MATURITY ON  THE CLASS M CERTIFICATES WILL
                                    BE MORE SENSITIVE TO LOSSES  DUE TO LIQUIDATIONS OF  THE
                                    MORTGAGE LOANS (AND THE TIMING THEREOF) THAN THE CLASS A
                                    CERTIFICATES, IN THE EVENT THAT THE PRINCIPAL BALANCE OF
                                    THE CLASS B CERTIFICATES HAS BEEN REDUCED TO ZERO.
 
                                    See  "Description of  the Certificates--Subordination of
                                    Class M  and Class  B Certificates"  in this  Prospectus
                                    Supplement.
Effects of Prepayments on
  Investment Expectations.........  The  actual  rate  of  prepayment  of  principal  on the
                                    Mortgage  Loans  cannot  be  predicted.  The  investment
                                    performance   of  the  Offered   Certificates  may  vary
                                    materially   and   adversely    from   the    investment
                                    expectations  of  investors  due to  prepayments  on the
                                    Mortgage Loans being higher or lower than anticipated by
                                    investors. The actual yield to the holder of an  Offered
                                    Certificate may not be equal to the yield anticipated at
                                    the   time   of   purchase   of   the   Certificate  or,
                                    notwithstanding that the  actual yield is  equal to  the
                                    yield  anticipated  at that  time,  the total  return on
                                    investment expected  by  the investor  or  the  expected
                                    weighted  average  life of  the  Certificate may  not be
                                    realized.  These  effects   are  summarized  below.   IN
                                    DECIDING  WHETHER TO PURCHASE  ANY OFFERED CERTIFICATES,
                                    AN INVESTOR SHOULD  MAKE AN INDEPENDENT  DECISION AS  TO
                                    THE APPROPRIATE PREPAYMENT ASSUMPTIONS TO BE USED.
 
                                    YIELD.   If an investor purchases an Offered Certificate
                                    at an amount equal to its unpaid principal balance (that
                                    is, at  "par"), the  effective  yield to  that  investor
                                    (assuming  that  there  are no  interest  shortfalls and
                                    assuming the  full return  of the  purchaser's  invested
                                    principal)  will  approximate the  pass-through  rate on
</TABLE>
 
                                      S-17
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    that Certificate. If an investor pays less or more  than
                                    the  unpaid principal  balance of  the Certificate (that
                                    is, buys the Certificate  at a "discount" or  "premium,"
                                    respectively),  then, based on the assumptions set forth
                                    in the preceding  sentence, the effective  yield to  the
                                    investor will be higher or lower, respectively, than the
                                    stated  interest rate  on the  Certificate, because such
                                    discount or premium will be  amortized over the life  of
                                    the  Certificate. Any  deviation in  the actual  rate of
                                    prepayments on the Mortgage Loans from the rate  assumed
                                    by  the  investor will  affect the  period of  time over
                                    which, or the  rate at  which, the  discount or  premium
                                    will  be  amortized and,  consequently, will  change the
                                    investor's  actual  yield  from  that  anticipated.   AN
                                    INVESTOR  THAT PURCHASES  ANY OFFERED  CERTIFICATES AT A
                                    DISCOUNT SHOULD  CAREFULLY  CONSIDER  THE  RISK  THAT  A
                                    SLOWER  THAN ANTICIPATED  RATE OF  PRINCIPAL PAYMENTS ON
                                    THE MORTGAGE LOANS WILL RESULT  IN AN ACTUAL YIELD  THAT
                                    IS   LOWER  THAN  SUCH  INVESTOR'S  EXPECTED  YIELD.  AN
                                    INVESTOR THAT PURCHASES  ANY OFFERED  CERTIFICATES AT  A
                                    PREMIUM,  OR THE  CLASS A-3  AND CLASS  A-6 CERTIFICATES
                                    WHICH HAVE  NO PRINCIPAL  BALANCE, SHOULD  CONSIDER  THE
                                    RISK  THAT A  FASTER THAN ANTICIPATED  RATE OF PRINCIPAL
                                    PAYMENTS ON THE MORTGAGE LOANS WILL RESULT IN AN  ACTUAL
                                    YIELD THAT IS LOWER THAN SUCH INVESTOR'S EXPECTED YIELD.
 
                                    The  yield to investors  in the Class  A-3 and Class A-6
                                    Certificates, which have no  principal balance, will  be
                                    sensitive  to both the timing  of receipt of prepayments
                                    and the  overall  rate  of prepayment  on  the  Mortgage
                                    Loans. The yield to investors in the Class A-6 and Class
                                    A-16  Certificates will also be  highly sensitive to the
                                    level of  LIBOR and  high levels  of LIBOR  will have  a
                                    material  negative effect  on the yield  to investors in
                                    the  Class  A-6   and  Class   A-16  Certificates.   The
                                    particular sensitivities of the Class A-3, Class A-6 and
                                    Class  A-16 Certificates are separately displayed in the
                                    tables appearing under the heading "Prepayment and Yield
                                    Considerations" in this Prospectus Supplement. INVESTORS
                                    IN THE  CLASS  A-3  AND CLASS  A-6  CERTIFICATES  SHOULD
                                    CONSIDER  THE  RISK  THAT  A  RAPID  RATE  OF  PRINCIPAL
                                    PAYMENTS ON THE MORTGAGE LOANS,  AND IN THE CASE OF  THE
                                    CLASS  A-6 CERTIFICATES,  A HIGH  LEVEL OF  LIBOR, COULD
                                    RESULT IN THE FAILURE OF SUCH INVESTORS TO FULLY RECOVER
                                    THEIR INITIAL INVESTMENTS.
 
                                    REINVESTMENT RISK.  As stated above, if a Certificate is
                                    purchased at  an amount  equal to  its unpaid  principal
                                    balance,  fluctuations in  the rate  of distributions of
                                    principal  will  generally  not  affect  the  yield   to
                                    maturity  of that Certificate. However, the total return
                                    on any purchaser's investment, including an investor who
                                    purchases at par,  will be  reduced to  the extent  that
                                    principal  distributions  received  on  its  Certificate
                                    cannot be reinvested  at a  rate as high  as the  stated
                                    interest  rate  of  the  Certificate.  Investors  in the
                                    Offered Certificates should consider the risk that rapid
                                    rates of prepayments on the Mortgage Loans may  coincide
                                    with  periods of  low prevailing  market interest rates.
                                    During periods of low prevailing market interest  rates,
                                    mortgagors  may  be  expected  to  prepay  or  refinance
                                    Mortgage
</TABLE>
 
                                      S-18
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Loans that  carry  interest rates  significantly  higher
                                    than  then-current  interest rates  for  mortgage loans.
                                    Consequently,  the  amount  of  principal  distributions
                                    available  to an  investor for reinvestment  at such low
                                    prevailing  interest  rates  may  be  relatively  large.
                                    Conversely,  slow rates  of prepayments  on the Mortgage
                                    Loans may  coincide  with  periods  of  high  prevailing
                                    market  interest rates. During such  periods, it is less
                                    likely that mortgagors will elect to prepay or refinance
                                    Mortgage Loans and, therefore,  the amount of  principal
                                    distributions  available to an investor for reinvestment
                                    at such high prevailing interest rates may be relatively
                                    small.
 
                                    WEIGHTED AVERAGE LIFE VOLATILITY.  One indication of the
                                    impact of varying prepayment rates on a security is  the
                                    change  in  its  weighted  average  life.  The "weighted
                                    average life" of an Offered Certificate (other than  the
                                    Class  A-3 and  Class A-6  Certificates) is  the average
                                    amount of  time that  will elapse  between the  date  of
                                    issuance  of the Certificate and  the date on which each
                                    dollar in  reduction of  the  principal balance  of  the
                                    Certificate is distributed to the investor. The weighted
                                    average  life of a Class  A-3 Certificate is the average
                                    amount of  time that  will elapse  between the  date  of
                                    issuance  of the Series 1993-9 Certificates and the date
                                    on which  each  dollar  in reduction  of  the  principal
                                    balances  of the  Class A-1  and Class  A-2 Certificates
                                    (indicated percentages  of which  balances comprise  the
                                    notional  amount  of  the  Class  A-3  Certificates)  is
                                    distributed to the investors in the Class A-1 and  Class
                                    A-2  Certificates. The weighted average  life of a Class
                                    A-6 Certificate is the average amount of time that  will
                                    elapse between the date of issuance of the Series 1993-9
                                    Certificates  and  the  date  on  which  each  dollar in
                                    reduction of  the principal  balance  of the  Class  A-5
                                    Certificates  (the indicated percentage of which balance
                                    comprises  the  notional   amount  of   the  Class   A-6
                                    Certificates)  is  distributed to  the investors  in the
                                    Class A-5  Certificates.  Low rates  of  prepayment  may
                                    result  in the extension of the weighted average life of
                                    a Certificate; high rates  may result in the  shortening
                                    of  such  weighted  average  life.  In  general,  if the
                                    weighted average life of a Certificate purchased at  par
                                    is  extended  beyond  that  initially  anticipated, such
                                    Certificate's market  value  may be  adversely  affected
                                    even  though the yield to maturity on the Certificate is
                                    unaffected. THE WEIGHTED AVERAGE LIVES OF THE  SCHEDULED
                                    COMPANION  CERTIFICATES, THE  COMPANION CERTIFICATES AND
                                    THE CLASS  A-14 CERTIFICATES  BY VIRTUE  OF AND  TO  THE
                                    EXTENT  OF THEIR SCHEDULED  COMPANION COMPONENT, WILL BE
                                    HIGHLY SENSITIVE, AND THE WEIGHTED AVERAGE LIVES OF  THE
                                    SCHEDULED  CERTIFICATES AND THE  CLASS A-13 CERTIFICATES
                                    BY VIRTUE OF AND TO THE EXTENT OF THEIR SCHEDULED COMPO-
                                    NENT, WILL BE SENSITIVE, TO PREPAYMENTS ON THE  MORTGAGE
                                    LOANS AT RATES AT OR ABOVE CERTAIN PREPAYMENT LEVELS BE-
                                    CAUSE  PAYMENTS OF  PRINCIPAL ALLOCATED  TO THE  CLASS A
                                    CERTIFICATES AT OR ABOVE SUCH PREPAYMENT LEVELS WILL  BE
                                    PAID  TO  HOLDERS OF  THE  SUPPORT CERTIFICATES  AND THE
                                    CLASS A-13 AND
</TABLE>
 
                                      S-19
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    CLASS A-14  CERTIFICATES  IN RESPECT  OF  THEIR  SUPPORT
                                    COMPONENTS,  WHILE SUCH CERTIFICATES REMAIN OUTSTANDING,
                                    PRIOR  TO  BEING  PAID  TO   THE  HOLDERS  OF  THE   PAC
                                    CERTIFICATES  OR IN  RESPECT OF THE  PAC COMPONENTS. The
                                    weighted average  lives  of  the  Offered  Certificates,
                                    under various prepayment scenarios, are displayed in the
                                    tables appearing under the heading "Prepayment and Yield
                                    Considerations" in this Prospectus Supplement.
 
                                    See    "Prepayment   and   Yield   Considerations"   and
                                    "Description of  the Certificates--Principal  (Including
                                    Prepayments)--Principal  Payment Characteristics  of the
                                    PAC  Certificates,  the  PAC  Components,  the   Support
                                    Certificates   and  the  Support   Components"  in  this
                                    Prospectus Supplement.
 
Federal Income Tax Status.........  For federal income tax  purposes, the Trust Estate  will
                                    consist  of two real estate mortgage investment conduits
                                    (the "Upper-Tier REMIC" and the "Lower-Tier REMIC"). 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 A-11, Class  A-12, Class A-13,  Class A-14,  Class
                                    A-15,   Class   A-16,   Class   A-17   and   Class  A-18
                                    Certificates, the Class M  Certificates and the Class  B
                                    Certificates will be designated as the regular interests
                                    in  the Upper-Tier REMIC, and  the Class A-R Certificate
                                    and Class  A-LR Certificate  will be  designated as  the
                                    residual   interests   in  the   Upper-Tier   REMIC  and
                                    Lower-Tier REMIC, respectively.
 
                                    The Regular Certificates  (as defined herein)  generally
                                    will be treated as newly originated debt instruments for
                                    federal  income tax  purposes. Beneficial  owners of the
                                    Regular Certificates will be  required to report  income
                                    thereon   in  accordance  with  the  accrual  method  of
                                    accounting. The Class A-17  Certificates will be  issued
                                    with  original issue discount in  an amount equal to the
                                    excess of all  distributions of  principal and  interest
                                    thereon  (whether current  or accrued)  over their issue
                                    price (including accrued  interest). The  Class A-3  and
                                    Class  A-6  Certificates  will be  issued  with original
                                    issue discount in an amount  equal to the excess of  all
                                    distributions  of  interest  thereon  over  their  issue
                                    prices (including accrued  interest). It is  anticipated
                                    that  the  Class A-5  Certificates  will be  issued with
                                    original issue discount in an amount equal to the excess
                                    of the initial principal balance of such subclass plus a
                                    portion  of  interest  thereon  (as  further   described
                                    herein)  over their  issue price  (including accrued in-
                                    terest). It is further  anticipated that the Class  A-16
                                    Certificates will be issued with original issue discount
                                    for  federal income tax  purposes in an  amount equal to
                                    the excess  of the  initial  principal balance  of  such
                                    subclass  over their issue price. It is anticipated that
                                    the Class A-1,  Class A-2, Class  A-4, Class A-7,  Class
                                    A-8,  Class  A-9, Class  A-10,  Class A-11,  Class A-12,
                                    Class  A-13,  Class  A-14,   Class  A-15  and  Class   M
                                    Certificates  will be  issued at  a premium  for federal
                                    income tax purposes. The Class A-18 Certificates,  which
                                    are  not offered hereby, also  will be treated as issued
                                    with original  issue  discount for  federal  income  tax
                                    purposes.
</TABLE>
 
                                      S-20
<PAGE>
 
<TABLE>
<S>                                 <C>
                                    Holders  of the  Class A-R  and Class  A-LR Certificates
                                    will be required to include  the taxable income or  loss
                                    of  the  Upper-Tier  REMIC  and  the  Lower-Tier  REMIC,
                                    respectively,  in  determining  their  federal   taxable
                                    income.  It  is anticipated  that  all or  a substantial
                                    portion of the  taxable income of  the Upper-Tier  REMIC
                                    and  Lower-Tier REMIC  includible by  the Class  A-R and
                                    Class A-LR  Certificateholders,  respectively,  will  be
                                    treated  as "excess inclusion" income subject to special
                                    limitations for  federal income  tax purposes.  FURTHER,
                                    SIGNIFICANT  RESTRICTIONS APPLY  TO THE  TRANSFER OF THE
                                    CLASS A-R  AND CLASS  A-LR CERTIFICATES.  THE CLASS  A-R
                                    CERTIFICATE WILL, AND THE CLASS A-LR CERTIFICATE MAY, BE
                                    CONSIDERED  "NONECONOMIC  RESIDUAL  INTERESTS,"  CERTAIN
                                    TRANSFERS OF WHICH MAY BE DISREGARDED FOR FEDERAL INCOME
                                    TAX PURPOSES.
 
                                    See "Description  of the  Certificates--Restrictions  on
                                    Transfer  of the  Class A-6,  Class A-R,  Class A-LR and
                                    Class  M   Certificates"   and   "Federal   Income   Tax
                                    Considerations"   in  this   Prospectus  Supplement  and
                                    "Certain Federal Income Tax Consequences--Federal Income
                                    Tax  Consequences   for  REMIC   Certificates"  in   the
                                    Prospectus.
 
ERISA Considerations..............  A  fiduciary of any employee benefit plan subject to the
                                    Employee Retirement  Income  Security Act  of  1974,  as
                                    amended ("ERISA"), or the Internal Revenue Code of 1986,
                                    as  amended (the  "Code"), should  carefully review with
                                    its legal advisors  whether the purchase  or holding  of
                                    Class  A or  Class M Certificates  could give  rise to a
                                    transaction  prohibited  or  not  otherwise  permissible
                                    under   ERISA  or   the  Code.   BECAUSE  THE   CLASS  M
                                    CERTIFICATES   ARE   SUBORDINATED   TO   THE   CLASS   A
                                    CERTIFICATES,  THE  CLASS  M  CERTIFICATES  MAY  NOT  BE
                                    PURCHASED BY OR TRANSFERRED TO AN ERISA PLAN EXCEPT UPON
                                    THE DELIVERY OF AN OPINION OF COUNSEL AS DESCRIBED UNDER
                                    "ERISA CONSIDERATIONS"  IN THIS  PROSPECTUS  SUPPLEMENT.
                                    NEITHER  THE CLASS  A-R CERTIFICATE  NOR THE  CLASS A-LR
                                    CERTIFICATE MAY  BE PURCHASED  BY OR  TRANSFERRED TO  AN
                                    ERISA   PLAN.   See  "ERISA   Considerations"   in  this
                                    Prospectus Supplement and in the Prospectus.
 
Legal Investment..................  The Offered  Certificates constitute  "mortgage  related
                                    securities"  for  purposes  of  the  Secondary  Mortgage
                                    Market Enhancement Act of 1984 so long as they are rated
                                    in one of the two highest rating categories by at  least
                                    one nationally recognized statistical rating
                                    organization.  As  such,  the  Offered  Certificates are
                                    legal investments  for certain  entities to  the  extent
                                    provided  in  such  act. However,  there  are regulatory
                                    requirements and considerations applicable to  regulated
                                    financial  institutions and restrictions  on the ability
                                    of such  institutions  to  invest in  certain  types  of
                                    mortgage  related securities.  Prospective purchasers of
                                    the Offered Certificates should consult their own legal,
                                    tax and  accounting advisors  in determining  the  suit-
                                    ability  of and  consequences to  them of  the purchase,
                                    ownership and disposition  of the Offered  Certificates.
                                    See "Legal Investment" in this Prospectus Supplement.
</TABLE>
 
                                      S-21
<PAGE>
                        DESCRIPTION OF THE CERTIFICATES
 
GENERAL
 
    The  Book-Entry Certificates will be issued  only in book-entry form, except
as described  below.  The Book-Entry  Certificates  will be  issued  in  minimum
denominations  of $100,000 initial  principal balance and  integral multiples of
$1,000 initial principal balance in excess thereof.
 
    Offered Certificates  issued  in  fully registered,  certificated  form  are
referred to herein as "Definitive Certificates." The Class A-3 Certificates will
be  issued  as Definitive  Certificates in  minimum denominations  of $3,300,000
initial Class A-3 Notional Amount and integral multiples of $1 initial Class A-3
Notional Amount in excess thereof. The Class A-6 Certificates will be issued  as
Definitive  Certificates and, except as set  forth in the immediately succeeding
sentence, in  minimum  denominations  of $855,000  initial  Class  A-6  Notional
Amount.  The Class  A-6 Certificates may  be issued in  minimum denominations of
$100,000 initial Class A-6 Notional Amount to persons who deliver to the Trustee
an affidavit stating that such  person: (a)(i) is a substantial,  sophisticated,
institutional investor having knowledge and experience in financial and business
matters,  and in particular in such matters related to securities similar to the
Class A-6 Certificates,  such that such  investor is capable  of evaluating  the
merits  and risks of an investment in the Class A-6 Certificates, and (ii) has a
net worth of at least $10,000,000; or  (b) will hold the Class A-6  Certificates
solely as nominee for a person meeting the criteria set forth in clause (a). Any
amounts  in excess  of $855,000  (or $100,000, as  the case  may be)  will be in
integral multiples  of  $1  initial  Class A-6  Notional  Amount.  The  Class  M
Certificates  will be issued as Definitive Certificates in minimum denominations
of $100,000 initial principal balance  and integral multiples of $1,000  initial
principal  balance in excess thereof. The  Class A-R and Class A-LR Certificates
will each be issued  as a single Definitive  Certificate with a denomination  of
$1,000 initial principal balance.
 
    Each  Subclass of Book-Entry Certificates initially will be represented by a
single physical certificate registered  in the name of  Cede & Co. ("Cede"),  as
nominee  of  DTC, which  will  be the  "holder"  or "Certificateholder"  of such
Certificates, as such terms are used herein. No person acquiring an interest  in
the Book-Entry Certificates (a "Beneficial Owner") will be entitled to receive a
certificate  representing such person's interest in the Book-Entry Certificates,
except as set forth  below under "--Definitive  Certificates." Unless and  until
Definitive  Certificates are  issued under  the limited  circumstances described
herein, all references to actions taken by Certificateholders or holders  shall,
in  the case of the Book-Entry Certificates,  refer to actions taken by DTC upon
instructions from its Participants (as defined below), and all references herein
to distributions,  notices,  reports  and statements  to  Certificateholders  or
holders   shall,  in  the   case  of  the   Book-Entry  Certificates,  refer  to
distributions, notices, reports and statements to DTC or Cede, as the registered
holder of the Book-Entry Certificates, as  the case may be, for distribution  to
Beneficial   Owners  in  accordance  with   DTC  procedures.  See  "--Book-Entry
Registration" below.
 
BOOK-ENTRY REGISTRATION
 
    DTC is a limited purpose trust company organized under the laws of the State
of New York, a  member of the Federal  Reserve System, a "clearing  corporation"
within  the  meaning of  the New  York  UCC and  a "clearing  agency" registered
pursuant to Section 17A of the Securities Exchange Act of 1934, as amended.  DTC
was   created   to   hold  securities   for   its   participating  organizations
("Participants") and to  facilitate the clearance  and settlement of  securities
transactions   among  Participants  through   electronic  book-entries,  thereby
eliminating the need for physical movement of certificates. Participants include
securities  brokers  and  dealers  (including  the  Underwriter),  banks,  trust
companies  and clearing corporations. Indirect access  to the DTC system also is
available to banks,  brokers, dealers,  trust companies  and other  institutions
that  clear through  or maintain  a custodial  relationship with  a Participant,
either directly or indirectly ("Indirect Participants").
 
    Under the rules, regulations and  procedures creating and affecting DTC  and
its  operations (the "Rules"),  DTC is required to  make book-entry transfers of
Book-Entry Certificates among Participants on whose behalf it acts with  respect
to  the Book-Entry  Certificates and  to receive  and transmit  distributions of
principal of  and  interest on  the  Book-Entry Certificates.  Participants  and
Indirect Participants with
 
                                      S-22
<PAGE>
which   Beneficial  Owners  have   accounts  with  respect   to  the  Book-Entry
Certificates similarly are required to make book-entry transfers and receive and
transmit such payments on behalf of their respective Beneficial Owners.
 
    Beneficial Owners that  are not  Participants or  Indirect Participants  but
desire  to purchase, sell or otherwise transfer ownership of, or other interests
in, Book-Entry Certificates  may do  so only through  Participants and  Indirect
Participants.  In addition, Beneficial Owners  will receive all distributions of
principal and interest from  the Servicer, or  a paying agent  on behalf of  the
Servicer,  through DTC Participants. DTC will  forward such distributions to its
Participants, which thereafter  will forward  them to  Indirect Participants  or
Beneficial  Owners. Beneficial Owners will not be recognized by the Trustee, the
Servicer or any paying agent as Certificateholders, as such term is used in  the
Pooling  and Servicing  Agreement, and  Beneficial Owners  will be  permitted to
exercise the rights of  Certificateholders only indirectly  through DTC and  its
Participants.
 
    Because  DTC can  only act  on behalf  of Participants,  who in  turn act on
behalf of Indirect Participants and certain  banks, the ability of a  Beneficial
Owner  to  pledge Book-Entry  Certificates to  persons or  entities that  do not
participate in  the  DTC  system, or  to  otherwise  act with  respect  to  such
Book-Entry  Certificates,  may  be  limited  due  to  the  lack  of  a  physical
certificate for such  Book-Entry Certificates. In  addition, under a  book-entry
format,  Beneficial Owners may  experience delays in  their receipt of payments,
since distributions will be made by the Servicer, or a paying agent on behalf of
the Servicer, to Cede, as nominee for DTC.
 
    DTC has advised  the Seller that  it will  take any action  permitted to  be
taken  by a Certificateholder under the  Pooling and Servicing Agreement only at
the direction  of  one or  more  Participants to  whose  accounts with  DTC  the
Book-Entry  Certificates are credited. Additionally,  DTC has advised the Seller
that it will take such actions  with respect to specified Voting Interests  only
at  the direction of and on behalf  of Participants whose holdings of Book-Entry
Certificates evidence such specified Voting Interests. DTC may take  conflicting
actions  with respect to Voting Interests  to the extent that Participants whose
holdings of  Book-Entry Certificates  evidence such  Voting Interests  authorize
divergent action.
 
    Neither   the  Seller,   the  Servicer  nor   the  Trustee   will  have  any
responsibility for any  aspect of the  records relating to  or payments made  on
account of beneficial ownership interests of the Book-Entry Certificates held by
Cede,  as  nominee for  DTC, or  for maintaining,  supervising or  reviewing any
records relating to  such beneficial ownership  interests. In the  event of  the
insolvency  of  DTC  or a  Participant  or  Indirect Participant  in  whose name
Book-Entry Certificates are registered, the ability of the Beneficial Owners  of
such  Book  Entry Certificates  to  obtain timely  payment  may be  impaired. In
addition, in such event, if the  limits of applicable insurance coverage by  the
Securities  Investor Protection Corporation are exceeded  or if such coverage is
otherwise unavailable, ultimate payment of amounts distributable with respect to
such Book-Entry Certificates may be impaired.
 
DEFINITIVE CERTIFICATES
 
    The Class A-3,  Class A-6, Class  A-R, Class A-LR  and Class M  Certificates
will be issued as Definitive Certificates. Further, Book-Entry Certificates will
be  converted to Definitive  Certificates and re-issued  to Beneficial Owners or
their nominees, rather  than to DTC  or its  nominee, only if  (i) the  Servicer
advises  the  Trustee  in writing  that  DTC is  no  longer willing  or  able to
discharge properly  its  responsibilities  as depository  with  respect  to  the
Book-Entry  Certificates  and  the  Servicer is  unable  to  locate  a qualified
successor, (ii) the Servicer, at its option, elects to terminate the  book-entry
system  through DTC or (iii) after the  occurrence of a dismissal or resignation
of the Servicer  under the  Pooling and Servicing  Agreement, Beneficial  Owners
representing not less than 51% of the Voting Interests of each outstanding class
of  Book-Entry Certificates advise the Trustee through DTC, in writing, that the
continuation of a book-entry system through  DTC (or a successor thereto) is  no
longer in the Beneficial Owners' best interest.
 
    Upon  the occurrence  of any  event described  in the  immediately preceding
paragraph, the Trustee will be required to notify all Beneficial Owners  through
Participants of the availability of Definitive
 
                                      S-23
<PAGE>
Certificates.  Upon surrender by DTC of the definitive certificates representing
the Book-Entry Certificates and receipt of instructions for re-registration, the
Trustee will reissue the Book-Entry  Certificates as Definitive Certificates  to
Beneficial   Owners.  Distributions  of  principal  of,  and  interest  on,  the
Book-Entry Certificates will  thereafter be made  by the Servicer,  or a  paying
agent  on behalf of the Servicer, directly to holders of Definitive Certificates
in accordance  with  the procedures  set  forth  in the  Pooling  and  Servicing
Agreement.
 
    Definitive Certificates will be transferable and exchangeable at the offices
of  the Trustee or the certificate registrar.  No service charge will be imposed
for any  registration of  transfer  or exchange,  but  the Trustee  may  require
payment  of  a sum  sufficient to  cover  any tax  or other  governmental charge
imposed in connection therewith.
 
DISTRIBUTIONS
 
    Distributions of interest and in  reduction of principal balance to  holders
of  Class A Certificates of each Subclass will be made monthly, to the extent of
each Subclass' entitlement thereto, on  the 25th day of  each month or, if  such
day is not a business day, on the succeeding business day (each, a "Distribution
Date"),  beginning in March  1993, in an  aggregate amount equal  to the Class A
Distribution Amount. Distributions  of interest  and in  reduction of  principal
balance  to holders of Class M Certificates  will be made monthly, to the extent
of the Class M Certificates' entitlement  thereto, on each Distribution Date  in
an  aggregate amount equal to the Class  M Distribution Amount after all amounts
in respect of interest and  principal due on the  Class A Certificates for  such
Distribution  Date  including all  previously unpaid  Class A  Subclass Interest
Shortfall Amounts with respect to any Subclass of Class A Certificates have been
paid. The "Determination Date"  with respect to each  Distribution Date will  be
the  17th day of each month, or if such day is not a business day, the preceding
business day. Distributions will be made on each Distribution Date to holders of
record (which, in  the case  of the Book-Entry  Certificates, will  be Cede,  as
nominee  for DTC)  at the  close of  business on  the last  business day  of the
preceding month (each, a "Record Date"),  except that the final distribution  in
respect of each Class A Certificate of any Subclass and each Class M Certificate
will  only be made  upon presentation and surrender  of such Class  A or Class M
Certificate at the office  or agency appointed by  the Trustee and specified  in
the  notice  of  final distribution  in  respect  of such  Subclass  of  Class A
Certificates or Class M Certificate.
 
    The aggregate  amount available  for distribution  to Certificateholders  on
each  Distribution  Date  will  be  the  Pool  Distribution  Amount.  The  "Pool
Distribution Amount" for a Distribution Date  will be the sum of all  previously
undistributed  payments  or other  receipts on  account of  principal (including
principal prepayments and Liquidation Proceeds in respect of principal, if  any)
and  interest on or  in respect of  the Mortgage Loans  received by the Servicer
after the Cut-Off Date (except for amounts due on or prior to the Cut-Off Date),
or received by the Servicer  on or prior to the  Cut-Off Date but due after  the
Cut-Off  Date, in either case received on or prior to the business day preceding
the Determination Date in the month in which such Distribution Date occurs, plus
(i) all Periodic Advances  made by the Servicer,  (ii) all withdrawals from  any
reserve  fund established  to provide support  for the  Servicer's obligation to
make advances,  as described  under "--Periodic  Advances" below  and (iii)  all
other  amounts required to be placed in  the Certificate Account by the Servicer
pursuant to the Pooling and Servicing Agreement, but excluding the following:
 
        (a)  amounts  received  as  late  payments  of  principal  or   interest
    respecting  which the Servicer previously has  made one or more unreimbursed
    Periodic Advances or an unreimbursed advance has been made from the  Reserve
    Fund, if established;
 
        (b) any unreimbursed Periodic Advances or unreimbursed advances from the
    Reserve Fund, if established, with respect to Liquidated Loans;
 
        (c)  those portions of each payment of interest on a particular Mortgage
    Loan which represent the applicable Servicing Fee, as adjusted in respect of
    Prepayment Interest Shortfalls as described under "--Interest" below;
 
                                      S-24
<PAGE>
        (d)  all  amounts  representing  scheduled  payments  of  principal  and
    interest  due  after the  Due  Date occurring  in  the month  in  which such
    Distribution Date occurs;
 
        (e) all principal prepayments in full  and all proceeds of any  Mortgage
    Loans,  or  property acquired  in  respect thereof,  liquidated, foreclosed,
    purchased or repurchased  pursuant to the  Pooling and Servicing  Agreement,
    received  on or  after the  Due Date  occurring in  the month  in which such
    Distribution Date occurs, and all partial principal prepayments received  by
    the  Servicer on or after  the Determination Date occurring  in the month in
    which such Distribution Date occurs, and all related payments of interest on
    such amounts;
 
         (f) to the  extent permitted  by the Pooling  and Servicing  Agreement,
    that portion of Liquidation Proceeds or insurance proceeds with respect to a
    Mortgage  Loan  which  represents  any unpaid  Servicing  Fee  to  which the
    Servicer is entitled;
 
        (g) all  amounts  representing  certain  expenses  reimbursable  to  the
    Servicer  and  other amounts  permitted to  be retained  by the  Servicer or
    withdrawn by  the Servicer  from  the Certificate  Account pursuant  to  the
    Pooling and Servicing Agreement;
 
        (h)  all amounts in the nature of late fees, assumption fees, prepayment
    fees and similar fees which the Servicer is entitled to retain as additional
    servicing compensation;
 
         (i) reinvestment  earnings  on  payments received  in  respect  of  the
    Mortgage Loans; and
 
         (j) Net Foreclosure Profits.
 
    On  each Distribution Date,  the Pool Distribution  Amount will be allocated
among the Classes  of Certificates  and distributed  to the  holders thereof  of
record  as of the related Record Date  as follows (the "Pool Distribution Amount
Allocation"):
 
        FIRST, to each Subclass of Class A Certificates, pro rata based on their
    respective Class A Subclass Interest Accrual Amounts, in an aggregate amount
    up to the sum of the Class A Subclass Interest Accrual Amounts with  respect
    to  such Distribution Date; provided, that prior to the Cross-Over Date, the
    amount that would otherwise be distributable  in respect of interest to  the
    Accrual  Certificates  will  instead be  distributed  concurrently  with the
    amounts described  in THIRD  below  in reduction  of  the Class  A  Subclass
    Principal  Balances of  the Class  A Certificates  then entitled  to receive
    distributions in  reduction  of principal  balance  in accordance  with  the
    priorities set forth below under "--Principal (Including
    Prepayments)--Allocation  of Amount  to be  Distributed to  the Class  A and
    Class M Certificates;"
 
        SECOND, to each  Subclass of  Class A  Certificates, pro  rata based  on
    their  respective unpaid Class A Subclass  Interest Shortfall Amounts, in an
    aggregate amount up  to the sum  of the previously  unpaid Class A  Subclass
    Interest Shortfall Amounts; provided, that prior to the Cross-Over Date, the
    amount  that would otherwise be distributable  in respect of interest to the
    Accrual Certificates pursuant to this provision will instead be  distributed
    concurrently  with the amounts described in  THIRD below in reduction of the
    Class A  Subclass  Principal  Balances  of the  Class  A  Certificates  then
    entitled  to  receive distributions  in  reduction of  principal  balance in
    accordance with the priorities set forth below under "--Principal (Including
    Prepayments)--Allocation of  Amount to  be Distributed  to the  Class A  and
    Class M Certificates;"
 
        THIRD,  to each Subclass  of Class A Certificates  (except the Class A-3
    and Class  A-6 Certificates),  in an  aggregate  amount up  to the  Class  A
    Optimal  Principal  Amount, such  distribution  to be  allocated  among such
    Subclasses in  accordance with  the  priorities set  forth below  under  "--
    Principal (Including Prepayments)--Allocation of Amount to be Distributed to
    the Class A and Class M Certificates;"
 
        FOURTH,  to the  Class M  Certificates in  an amount  up to  the Class M
    Interest Accrual Amount with respect to such Distribution Date;
 
                                      S-25
<PAGE>
        FIFTH, to the  Class M Certificates  in an amount  up to the  previously
    unpaid Class M Interest Shortfall Amount;
 
        SIXTH,  to  the Class  M Certificates  in an  amount up  to the  Class M
    Optimal Principal Amount; and
 
        SEVENTH, to the  Class B  Certificates first in  an amount  up to  their
    Class  B Interest  Accrual Amount  with respect  to such  Distribution Date,
    second in an amount up to their previously unpaid interest shortfall  amount
    and then in an amount up to their optimal principal amount.
 
    The "Class A Distribution Amount" for any Distribution Date will be equal to
the  sum of the amounts distributed  in accordance with priorities FIRST through
THIRD of the Pool Distribution Amount Allocation set forth above.
 
    The "Class M Distribution Amount" for any Distribution Date will be equal to
the sum of the amounts distributed in accordance with priorities FOURTH  through
SIXTH of the Pool Distribution Amount Allocation set forth above.
 
    The undivided percentage interest (the "Percentage Interest") represented by
any Class A Certificate of a Subclass or Class M Certificate in distributions to
such  Subclass or Class will be equal to the percentage obtained by dividing the
initial principal balance of such Certificate (or  in the case of the Class  A-3
Certificates,   the  initial  Class  A-3  Notional  Amount  of  such  Class  A-3
Certificate or, in the case of the Class A-6 Certificates, the initial Class A-6
Notional Amount  of  such  Class  A-6  Certificate)  by  the  aggregate  initial
principal  balance of all Certificates of such Subclass or Class (or in the case
of the Class  A-3 or  Class A-6 Certificates,  the aggregate  initial Class  A-3
Notional Amount of the Class A-3 Certificates or the aggregate initial Class A-6
Notional  Amount of the  Class A-6 Certificates, respectively),  as the case may
be.
 
INTEREST
 
    Interest will accrue on  each Subclass of Class  A Certificates (other  than
the  Class A-5, Class  A-6, Class A-15  and Class A-16  Certificates) and on the
Class M Certificates at their respective Pass-Through Rates, as described below,
during each one-month period ending on the  last day of the month preceding  the
month  in which each Distribution Date occurs (each, a "Regular Interest Accrual
Period"). The initial  Regular Interest Accrual  Period will be  deemed to  have
commenced  on February  1, 1993.  Interest which  accrues on  such Subclasses of
Class A Certificates and on the Class  M Certificates will be calculated on  the
assumption  that distributions in reduction of the principal balances thereof on
a Distribution Date are made on the first day of the month of such  Distribution
Date.  Interest will accrue  on the Class  A-5, Class A-6,  Class A-15 and Class
A-16 Certificates at  the applicable Pass-Through  Rates described below  during
each one-month period commencing on the 25th day of each month and ending on the
24th day of the following month (each, a "LIBOR Based Interest Accrual Period").
The  initial LIBOR Based  Interest Accrual Period will  commence on February 25,
1993. Until the LIBOR Based Interest  Accrual Period commencing on February  25,
1995, the Pass-Through Rates on the Class A-5 and Class A-6 Certificates will be
fixed  rates of  interest equal to  5.00% and 20.0005%  per annum, respectively.
Interest  on  each  Subclass  of  Class  A  Certificates  and  on  the  Class  M
Certificates  will be calculated  on the basis  of a 360-day  year consisting of
twelve 30-day months.
 
    The amount  of  interest which  will  accrue on  each  Subclass of  Class  A
Certificates  during each Regular Interest Accrual Period or, in the case of the
Class A-5, Class A-6, Class A-15  and Class A-16 Certificates, each LIBOR  Based
Interest Accrual Period, is referred to herein as the "Class A Subclass Interest
Accrual  Amount" for such Subclass. The Class A Subclass Interest Accrual Amount
for each Subclass of Offered Certificates,  other than the Class A-3, Class  A-6
and  Class  A-LR Certificates,  will  equal the  product  of (i)  1/12th  of the
Pass-Through Rate for such  Subclass and (ii) the  outstanding Class A  Subclass
Principal Balance of such Subclass. The Pass-Through Rate for each such Subclass
of  Offered Certificates, other  than the Class  A-5, Class A-15  and Class A-16
Certificates, is  the percentage  set  forth on  the  cover of  this  Prospectus
Supplement.  The Pass-Through Rates for the Class A-5, Class A-15 and Class A-16
Certificates will be determined as described below.
 
                                      S-26
<PAGE>
    The Class A Subclass Interest Accrual Amount for the Class A-3  Certificates
will  equal the product of  (i) 1/12th of 7.50% and  (ii) the Class A-3 Notional
Amount. The  Class  A  Subclass  Interest  Accrual  Amount  for  the  Class  A-6
Certificates  will equal the product of (i)  1/12th of the Pass-Through Rate for
the Class A-6 Certificates determined as described below and (ii) the Class  A-6
Notional Amount. The Class A Subclass Interest Accrual Amount for the Class A-LR
Certificate  will equal the  product of (i)  1/12th of 7.50%  and (ii) the Class
A-LR Notional Amount. The Class A Subclass Interest Accrual Amount for the Class
A-18 Certificates will equal the product of (i) 1/12th of the difference between
(a) the weighted  average of  the Net Mortgage  Interest Rates  of the  Mortgage
Loans  as of the first day  of such month and (b)  7.50% and (ii) the Class A-18
Notional Amount.
 
    Each Class A Subclass Interest Accrual Amount will be reduced by the portion
of (i) any Non-Supported Interest Shortfall allocable to such Subclass and  (ii)
the  interest portion of  Excess Special Hazard Losses,  Excess Fraud Losses and
Excess Bankruptcy Losses allocable to such Subclass.
 
    Until the LIBOR  Based Interest  Accrual Period commencing  on February  25,
1995,  the Pass-Through Rate  for the Class  A-5 Certificates will  be 5.00% per
annum. During each LIBOR  Based Interest Accrual Period  commencing on or  after
February  25, 1995, the Pass-Through Rate for the Class A-5 Certificates will be
a  per  annum  rate,  determined  on  the  second  business  day  preceding  the
commencement  of  such  LIBOR  Based  Interest  Accrual  Period  (each,  a "Rate
Determination Date"), equal to the lesser of (i) 0.65% plus the arithmetic  mean
of  the  London  Interbank  offered  rate  quotations  for  one-month Eurodollar
deposits ("LIBOR") prevailing  on such  Rate Determination  Date, determined  as
described below under "--Determination of LIBOR" and (ii) 10.0001%.
 
    Until  the LIBOR  Based Interest Accrual  Period commencing  on February 25,
1995, the Pass-Through Rate for the Class A-6 Certificates will be 20.0005%  per
annum.  During each LIBOR  Based Interest Accrual Period  commencing on or after
February 25, 1995, the Pass-Through Rate for the Class A-6 Certificates will  be
a per annum rate, subject to a minimum rate of 0% and a maximum rate of 37.4005%
equal to (i) 37.4005% minus (ii) the product of 4.00 and LIBOR, as determined on
the  applicable Rate  Determination Date. As  a result of  this calculation, for
LIBOR Based Interest Accrual Periods commencing  on or after February 25,  1995,
increasing  levels of  LIBOR will  produce a  reduced Pass-Through  Rate for the
Class A-6 Certificates (subject to the minimum rate), while decreasing levels of
LIBOR will produce an increased Pass-Through Rate (subject to the maximum rate).
 
    During the initial  LIBOR Based  Interest Accrual  Period, the  Pass-Through
Rate  for the  Class A-15  Certificates will be  4.4375% per  annum. During each
subsequent LIBOR Based Interest  Accrual Period, the  Pass-Through Rate for  the
Class  A-15 Certificates  will be a  per annum rate  equal to the  lesser of (i)
1.25% plus LIBOR, as  determined on the applicable  Rate Determination Date  and
(ii) 9.75%.
 
    During  the initial  LIBOR Based  Interest Accrual  Period, the Pass-Through
Rate for the Class A-16 Certificates  will be approximately 17.7083% per  annum.
During  each subsequent  LIBOR Based  Interest Accrual  Period, the Pass-Through
Rate for the  Class A-16 Certificates  will be a  per annum rate,  subject to  a
minimum  rate of  0% and a  maximum rate  of approximately 28.33%,  equal to (i)
approximately 28.33% minus (ii) the product of approximately 3.33 and LIBOR,  as
determined  on  the applicable  Rate  Determination Date.  As  a result  of this
calculation, increasing levels of LIBOR will produce a reduced Pass-Through Rate
for the Class A-16 Certificates (subject to the minimum rate), while  decreasing
levels  of LIBOR  will produce  an increased  Pass-Through Rate  (subject to the
maximum rate).
 
    The yield to investors in the Class A-15 and Class A-16 Certificates will be
affected by changes in  LIBOR and the  yield to investors in  the Class A-5  and
Class  A-6 Certificates will be affected by changes in LIBOR for any LIBOR Based
Interest Accrual Period  commencing on  or after  February 25,  1995. Levels  of
LIBOR  may have little or  no correlation to levels  of prevailing mortgage loan
interest rates.  It is  possible that  lower prevailing  mortgage loan  interest
rates  (which might  be expected  to result  in faster  prepayments) could occur
concurrently with an increased level of  LIBOR. Conversely, it is possible  that
higher  prevailing  mortgage loan  interest rates  (which  might be  expected to
result in slower prepayments) could occur concurrently with a decreased level of
LIBOR. See "Prepayment and Yield Considerations" herein and in the Prospectus.
 
                                      S-27
<PAGE>
    The amount of interest which will accrue on the Class M Certificates  during
each  month is referred to herein as  the "Class M Interest Accrual Amount." The
Class M Interest Accrual Amount  will equal the product  of (i) 1/12th of  7.50%
and (ii) the outstanding Class M Principal Balance. The Class M Interest Accrual
Amount  will  be  reduced  by  (i) the  portion  of  any  Non-Supported Interest
Shortfall allocable to the Class M Certificates and (ii) the interest portion of
Excess Special Hazard Losses, Excess  Fraud Losses and Excess Bankruptcy  Losses
allocable to the Class M Certificates as described below.
 
    The  amount of  interest which  will accrue on  the Class  B Certificates is
referred to  herein  as the  "Class  B Interest  Accrual  Amount." The  Class  B
Interest  Accrual Amount will equal the product  of (i) 1/12th of 7.50% and (ii)
the outstanding Class B Principal Balance.  The Class B Interest Accrual  Amount
will  be reduced  by (i)  the portion  of any  Non-Supported Interest Shortfalls
allocable to the Class  B Certificates and (ii)  the interest portion of  Excess
Special  Hazard  Losses,  Excess  Fraud  Losses  and  Excess  Bankruptcy  Losses
allocable to the Class B Certificates as described below.
 
    The  "Class  A  Subclass  Principal  Balance"  of  a  Subclass  of  Class  A
Certificates  as of any Determination Date will be the principal balance of such
Subclass on the date of  initial issuance of the  Class A Certificates plus,  in
the  case  of  the Accrual  Certificates,  the  portion of  the  related Accrual
Distribution Amount, as  described under  "--Principal (Including  Prepayments)"
below, previously added to the Class A Subclass Principal Balance of the Accrual
Certificates,  less  (i)  all  amounts  previously  distributed  to  holders  of
Certificates of such  Subclass in  reduction of  the principal  balance of  such
Subclass  and (ii)  such Subclass'  pro rata share  of the  principal portion of
Excess Special Hazard Losses, Excess  Fraud Losses and Excess Bankruptcy  Losses
previously  allocated  to the  holders  of Class  A  Certificates in  the manner
described   herein   under   "--Subordination   of   Class   M   and   Class   B
Certificates--Allocation  of  Losses." After  the Cross-Over  Date, the  Class A
Subclass Principal Balance of a Subclass may be subject to further reduction  in
an  amount equal  to such Subclass'  pro rata  share of the  difference, if any,
between (a) the Class A Principal Balance as of such Determination Date  without
regard  to this  provision and  (b) the Adjusted  Pool Amount  for the preceding
Distribution Date.  Any pro  rata allocation  among the  Subclasses of  Class  A
Certificates  described in this  paragraph will be made  among the Subclasses of
Class A Certificates  on the basis  of their then-outstanding  Class A  Subclass
Principal  Balances immediately prior to the  preceding Distribution Date, or in
the case of the Accrual Certificates,  their initial Class A Subclass  Principal
Balance, if lower.
 
    The  "Class A Principal Balance" as of  any Determination Date will be equal
to the sum of the Class A Subclass Principal Balances of the Subclasses of Class
A Certificates as of such date.
 
    The "Class M  Principal Balance" as  of any Determination  Date will be  the
lesser  of (a) the principal balance of the  Class M Certificates on the date of
initial issuance of  the Class M  Certificates less (i)  all amounts  previously
distributed  to holders  of Class M  Certificates in reduction  of the principal
balance thereof and (ii) the principal portion of Excess Special Hazard  Losses,
Excess  Fraud Losses  and Excess Bankruptcy  Losses previously  allocated to the
holders of  the  Class M  Certificates  in  the manner  described  herein  under
"--Subordination  of Class M and Class B Certificates--Allocation of Losses" and
(b) the Adjusted  Pool Amount  as of the  preceding Distribution  Date less  the
Class A Principal Balance as of such Determination Date.
 
    The  "Class B Principal  Balance" as of  any Determination Date  will be the
lesser of (a) the initial principal balance  on the date of initial issuance  of
the  Class B Certificates less (i) all amounts previously distributed to holders
of the Class B  Certificates in reduction of  the principal balance thereof  and
(ii)  the principal portion of Excess Special Hazard Losses, Excess Fraud Losses
and Excess Bankruptcy Losses previously allocated to the holders of the Class  B
Certificates in the manner described under
"--Subordination  of Class M and Class B Certificates--Allocation of Losses" and
(b) the Adjusted Pool Amount as of the preceding Distribution Date less the  sum
of the Class A Principal Balance and the Class M Principal Balance.
 
    With respect to any Distribution Date, the "Adjusted Pool Amount" will equal
the Cut-Off Date Aggregate Principal Balance of the Mortgage Loans minus the sum
of  (i) all amounts in respect of  principal received in respect of the Mortgage
Loans (including amounts received as Periodic Advances,
 
                                      S-28
<PAGE>
principal prepayments  and Liquidation  Proceeds in  respect of  principal)  and
distributed  to holders of  the Series 1993-9  Certificates on such Distribution
Date and all  prior Distribution  Dates and (ii)  the principal  portion of  all
Realized Losses incurred on the Mortgage Loans from the Cut-Off Date through the
end of the month preceding such Distribution Date.
 
    The  "Net Mortgage Interest Rate" on each Mortgage Loan will be equal to the
Mortgage Interest Rate on such Mortgage  Loan as stated in the related  mortgage
note minus the Servicing Fee rate of 0.20% per annum. See "Pooling and Servicing
Agreement--Servicing Compensation and Payment of Expenses" herein.
 
    The  Class A-3 and Class A-6 Certificates are interest only Certificates and
have no principal balance. The "Class A-3 Notional Amount" with respect to  each
Distribution  Date will be equal to the  sum of the indicated percentages of the
respective outstanding  Class A  Subclass Principal  Balance of  the  Subclasses
specified below immediately prior to each Distribution Date:
 
<TABLE>
<CAPTION>
                                                                                         CORRESPONDING
                                                                                         INITIAL CLASS
                                                                                              A-3
PERCENTAGE OF CLASS A SUBCLASS                                                              NOTIONAL
PRINCIPAL BALANCE OF SPECIFIED SUBCLASS                                                    AMOUNT(1)
- --------------------------------------------------------------------------------------  ----------------
<S>                                                                                     <C>
38.00% of Class A-1 Certificates......................................................   $    5,412,720
28.00% of Class A-2 Certificates......................................................       15,400,000
                                                                                        ----------------
Total.................................................................................   $   20,812,720
                                                                                        ----------------
                                                                                        ----------------
</TABLE>
 
(1) Approximate.  The initial Class A-3 Notional Amount is subject to adjustment
    in the event  that the initial  Class A Subclass  Principal Balances of  the
    Class A-1 and Class A-2 Certificates are adjusted as described herein.
 
    The  "Class A-6 Notional Amount" with respect to each Distribution Date will
be equal  to  the indicated  percentage  of  the outstanding  Class  A  Subclass
Principal  Balance  of  the Class  A-5  Certificates immediately  prior  to each
Distribution Date:
 
<TABLE>
<CAPTION>
                                                                                         CORRESPONDING
                                                                                         INITIAL CLASS
                                                                                              A-6
PERCENTAGE OF CLASS A SUBCLASS                                                              NOTIONAL
PRINCIPAL BALANCE OF SPECIFIED SUBCLASS                                                    AMOUNT(2)
- --------------------------------------------------------------------------------------  ----------------
<S>                                                                                     <C>
25.00% of Class A-5 Certificates......................................................   $   11,984,250
</TABLE>
 
(2) Approximate. The initial Class A-6 Notional Amount is subject to  adjustment
    in  the event  that the  initial Class A  Subclass Principal  Balance of the
    Class A-5 Certificates is adjusted as described herein.
 
    Accordingly, any distributions in respect of principal made to, or losses in
respect of principal allocated in reduction  of, the Class A Subclass  Principal
Balances  of  the  Class  A-1  and  Class  A-2  Certificates  will  result  in a
corresponding reduction in the Class  A-3 Notional Amount and any  distributions
in  respect of principal made to, or losses in respect of principal allocated in
reduction  of,  the  Class  A  Subclass  Principal  Balance  of  the  Class  A-5
Certificates  will result in a corresponding reduction in the Class A-6 Notional
Amount. See "--Principal (Including Prepayments)" and "--Subordination of  Class
M and Class B Certificates--Allocation of Losses" herein.
 
    The "Class A-18 Notional Amount" with respect to each Distribution Date will
be  equal to the Pool Scheduled Principal Balance, as defined under "--Principal
(Including Prepayments)" below,  as of  such Distribution Date.  The Class  A-18
Notional   Amount  with  respect   to  the  first   Distribution  Date  will  be
approximately $402,844,415, less any  partial principal prepayments received  in
February 1993.
 
    The "Class A-LR Notional Amount" with respect to each Distribution Date will
be  equal to the sum of the Class A Subclass Principal Balance of the Class A-LR
Certificate and  the  Class A  Subclass  Principal  Balance of  the  Class  A-18
Certificates.  The  Class  A-LR  Notional  Amount  with  respect  to  the  first
Distribution Date will be $2,000.
 
    Interest shortfalls resulting from principal prepayments in full of Mortgage
Loans ("Prepayment Interest  Shortfalls") will be  offset to the  extent of  the
aggregate Servicing Fees relating to mortgagor
 
                                      S-29
<PAGE>
payments  or other recoveries  distributed on the  related Distribution Date. To
the extent that the aggregate Prepayment  Interest Shortfalls with respect to  a
Distribution  Date  exceed the  aggregate Servicing  Fees relating  to mortgagor
payments  or  other  recoveries  distributed  on  such  Distribution  Date,  the
resulting  interest shortfall  (the "Non-Supported Interest  Shortfall") will be
allocated to (i) the Class A  Certificates according to the percentage  obtained
by  dividing the then-outstanding  Class A Principal  Balance by the  sum of the
then-outstanding Class A Principal Balance, Class M Principal Balance and  Class
B  Principal Balance, (ii) the Class  M Certificates according to the percentage
obtained by dividing the then-outstanding Class  M Principal Balance by the  sum
of the then-outstanding Class A Principal Balance, Class M Principal Balance and
Class  B Principal Balance and  (iii) the Class B  Certificates according to the
percentage obtained by dividing the  then-outstanding Class B Principal  Balance
by  the sum of the then-outstanding Class A Principal Balance, Class M Principal
Balance and Class B Principal Balance. Such allocation of Non-Supported Interest
Shortfalls will reduce the amount of  interest due to be distributed to  holders
of  the  Class  A Certificates  then  entitled  to distributions  in  respect of
interest, and, in the case of  the Accrual Certificates, will reduce the  amount
accrued  and  added to  the  Class A  Subclass  Principal Balance  thereof. Such
allocation of Non-Supported Interest Shortfalls  will also reduce the amount  of
interest  due to be distributed  to the holders of  the Class M Certificates and
Class B  Certificates.  Any  such  reduction in  respect  of  interest  will  be
allocated  among the Subclasses of Class A Certificates pro rata on the basis of
their respective Class A Subclass Interest Accrual Amounts for such Distribution
Date. See  "Servicing of  the  Mortgage Loans--Adjustment  to Servicing  Fee  in
Connection  with Prepaid Mortgage Loans"  in the Prospectus. Interest shortfalls
resulting from the timing of the  receipt of partial principal prepayments  will
not  be offset by Servicing  Fees and will, on  each Distribution Date occurring
prior to the Cross-Over Date, be allocated first to the Class B Certificates and
then to the Class M Certificates before being borne by the Class A Certificates.
See "--Subordination of  the Class M  and Class B  Certificates" below. On  each
Distribution  Date  occurring  on or  after  the Cross-Over  Date,  any interest
shortfalls resulting  from  the  timing  of the  receipt  of  partial  principal
prepayments  will be  considered Non-Supported  Interest Shortfalls  and will be
allocated to the Class A Certificates as described above.
 
    The interest  portion of  any  Excess Special  Hazard Losses,  Excess  Fraud
Losses  or Excess Bankruptcy Losses will be allocated among the Class A, Class M
and Class B Certificates  pro rata based  on the interest  accrued on each  such
Class  and among the Subclasses of Class A Certificates pro rata on the basis of
their respective Class A Subclass Interest Accrual Amounts for such Distribution
Date.
 
    Allocations of the interest  portion of Realized  Losses (other than  Excess
Special Hazard Losses, Excess Fraud Losses or Excess Bankruptcy Losses) first to
the  Class B Certificates and then to  the Class M Certificates will result from
the priority of distributions first to  the Class A Certificateholders and  then
to  the Class M Certificateholders of  the Pool Distribution Amount as described
above under
"--Distributions."
 
    On each Distribution Date  on which the Pool  Distribution Amount equals  or
exceeds  the sum of the Class A Subclass Interest Accrual Amounts, distributions
in respect of interest to each Subclass of Class A Certificates will equal  such
Subclass'  Class A Subclass  Interest Accrual Amount.  On each such Distribution
Date prior to the Cross-Over  Date, interest in an amount  equal to its Class  A
Subclass  Interest Accrual Amount  will accrue on  the Accrual Certificates, but
such amount will  not be distributed  as interest to  the Accrual  Certificates.
Prior  to the Cross-Over Date, an amount  equal to the Class A Subclass Interest
Accrual Amount for the Accrual Certificates will be distributed in reduction  of
the  Class A Subclass Principal Balance of the Subclass or Subclasses of Class A
Certificates then entitled  to receive distributions  in reduction of  principal
balance  as described under "--Principal (Including Prepayments)" below, and the
Class A Subclass Principal Balance of the Accrual Certificates will be increased
by a corresponding amount.
 
    If, on any Distribution Date, the Pool Distribution Amount is less than  the
sum  of the Class  A Subclass Interest  Accrual Amounts, the  amount of interest
currently distributed or accreted on the
 
                                      S-30
<PAGE>
Class  A  Certificates  will equal  the  Pool  Distribution Amount  and  will be
allocated among the Subclasses  of Class A Certificates  pro rata in  accordance
with  each such Subclass'  Class A Subclass Interest  Accrual Amount. Amounts so
allocated will be distributed in respect of interest to each Subclass of Class A
Certificates, with  the  exception of  the  Accrual Certificates  prior  to  the
Cross-Over  Date. Any  difference between the  portion of  the Pool Distribution
Amount distributed in respect  of current interest to  each Subclass of Class  A
Certificates or, in the case of the Accrual Certificates prior to the Cross-Over
Date,  accrued on and added  to the Class A  Subclass Principal Balance thereof,
and the Class A Subclass Interest Accrual Amount for such Subclass with  respect
to  the related Distribution  Date (as to  each Subclass, the  "Class A Subclass
Interest Shortfall Amount") will be added to the amount to be distributed or, in
the case of the Accrual Certificates, accreted on subsequent Distribution  Dates
to  the  extent that  the Pool  Distribution Amount  is sufficient  therefor. No
interest will accrue on the unpaid Class A Subclass Interest Shortfall  Amounts.
In the event that on any Distribution Date prior to the Cross-Over Date the Pool
Distribution  Amount  is less  than the  sum  of the  Class A  Subclass Interest
Accrual Amounts, resulting in  Class A Subclass  Interest Shortfall Amounts,  as
described  above, an  amount equal to  the Accrual Distribution  Amount would be
distributed to the Subclass or Subclasses of Class A Certificates then  entitled
to receive distributions in reduction of principal balance, notwithstanding that
the  holders  of  Certificates  of  the  Subclasses  then  entitled  to  receive
distributions of  interest have  received  less than  their respective  Class  A
Subclass Interest Accrual Amounts with respect to such Distribution Date.
 
    On  each Distribution Date on which the Pool Distribution Amount exceeds the
sum of the Class A  Subclass Interest Accrual Amounts,  any excess will then  be
allocated  first to pay (or accrete) previously unpaid Class A Subclass Interest
Shortfall Amounts. Such amounts will be allocated among the Subclasses of  Class
A  Certificates  pro  rata in  accordance  with  the respective  unpaid  Class A
Subclass Interest Shortfall Amounts immediately prior to such Distribution Date.
Prior  to  the  Cross-Over  Date,  the  amount  so  allocated  to  the   Accrual
Certificates  will not be distributed as interest  to the holders of the Accrual
Certificates, but  will instead  be  distributed in  reduction  of the  Class  A
Subclass Principal Balance of the Subclass or Subclasses of Class A Certificates
then  entitled to receive  distributions in reduction  of principal balance, and
the Class  A Subclass  Principal Balance  of the  Accrual Certificates  will  be
increased by a corresponding amount.
 
    On  each Distribution Date  on which the Pool  Distribution Amount equals or
exceeds the sum for such Distribution Date of (A) the sum of (i) the sum of  the
Class A Subclass Interest Accrual Amounts with respect to each Subclass of Class
A  Certificates, (ii) the sum of the  unpaid Class A Subclass Interest Shortfall
Amounts with respect  to each  Subclass of Class  A Certificates  and (iii)  the
Class  A Optimal  Principal Amount (collectively  with the  amounts described in
clauses (i) and (ii), "the Class A Optimal Amount") and (B) the Class M Interest
Accrual Amount, distributions  in respect  of current  interest to  the Class  M
Certificates will equal the Class M Interest Accrual Amount.
 
    If,  on any Distribution Date, the Pool Distribution Amount is less than the
sum of (i)  the Class A  Optimal Amount and  (ii) the Class  M Interest  Accrual
Amount,  the amount of current interest  distributed on the Class M Certificates
will equal the  Pool Distribution Amount  minus the amounts  distributed to  the
Class  A Certificates  with respect  to such  Distribution Date.  Any difference
between the portion of  the Pool Distribution Amount  distributed in respect  of
current  interest to the Class  M Certificates and the  Class M Interest Accrual
Amount with respect to such Distribution  Date (the "Class M Interest  Shortfall
Amount"),  will  be  added  to  the  amount  to  be  distributed  on  subsequent
Distribution Dates to the extent that the Pool Distribution Amount is sufficient
therefor. No  interest will  accrue on  the unpaid  Class M  Interest  Shortfall
Amount.
 
    On  each Distribution Date on which the Pool Distribution Amount exceeds the
sum of the Class A Optimal Amount  and the Class M Interest Accrual Amount,  any
excess  will  be  allocated first  to  pay  previously unpaid  Class  M Interest
Shortfall Amounts and then to make distributions in respect of principal on  the
Class  M Certificates and in respect of interest and then principal on the Class
B
 
                                      S-31
<PAGE>
Certificates. With  respect to  each  Distribution Date,  the "Class  M  Optimal
Amount"  will equal the sum of (i) the Class M Interest Accrual Amount, (ii) the
unpaid Class M Interest Shortfall Amount and (iii) the Class M Optimal Principal
Amount.
 
    On any Distribution Date on which the Pool Distribution Amount is less  than
the  Class  A  Optimal  Amount,  the  Class  M  Certificates  and  the  Class  B
Certificates will not be entitled to any distributions of interest or principal.
 
DETERMINATION OF LIBOR
 
    On each Rate Determination  Date, the Trustee will  determine LIBOR for  the
succeeding LIBOR Based Interest Accrual Period on the basis of the offered LIBOR
quotations  of  the Reference  Banks,  as such  quotations  are provided  to the
Trustee as of 11:00 a.m. (London time) on such Rate Determination Date. As  used
herein  with respect to a Rate Determination Date, "business day" means a day on
which banks are open for dealing in foreign currency and exchange in London  and
New   York  City;  "Reference  Banks"  means   four  leading  banks  engaged  in
transactions in Eurodollar deposits in the International Eurocurrency market (i)
with an established place of business in London, (ii) whose quotations appear on
the Reuters Screen  LIBO Page  on the Rate  Determination Date  in question  and
(iii) which have been designated as such by the Trustee and are able and willing
to  provide such quotations to the Trustee  on each Rate Determination Date; and
"Reuters Screen LIBO Page"  means the display designated  as page "LIBO" on  the
Reuters  Monitor Money Rates Service (or such other page as may replace the LIBO
page on that service for the purpose of displaying London Interbank offered rate
quotations of major  banks). If any  Reference Bank should  be removed from  the
Reuters Screen LIBO Page or in any other way fails to meet the qualifications of
a  Reference  Bank,  the  Trustee  may, in  its  sole  discretion,  designate an
alternative Reference Bank.
 
    On each  Determination  Date, LIBOR  for  the next  succeeding  LIBOR  Based
Interest Accrual Period will be established by the Trustee as follows:
 
         (i)  If on  any Rate  Determination Date two  or more  of the Reference
    Banks provide  such  offered quotations,  LIBOR  for the  next  LIBOR  Based
    Interest  Accrual  Period  will  be  the  arithmetic  mean  of  such offered
    quotations (rounding  such  arithmetic  mean upwards  if  necessary  to  the
    nearest whole multiple of 1/16%).
 
        (ii) If on any Rate Determination Date only one or none of the Reference
    Banks  provides  such offered  quotations, LIBOR  for  the next  LIBOR Based
    Interest Accrual Period will be the higher of (x) LIBOR as determined on the
    previous Rate  Determination Date  or  (y) the  Reserve Interest  Rate.  The
    "Reserve  Interest  Rate"  will be  the  rate  per annum  which  the Trustee
    determines to be either  (A) the arithmetic  mean (rounding such  arithmetic
    mean  upwards if necessary  to the nearest  whole multiple of  1/16%) of the
    one-month Eurodollar lending rate that New  York City banks selected by  the
    Trustee  are  quoting,  on  the relevant  Rate  Determination  Date,  to the
    principal London  offices  of at  least  two  leading banks  in  the  London
    Interbank  market or (B) in the event that the Trustee can determine no such
    arithmetic mean, the lowest one-month  Eurodollar lending rate that the  New
    York   City  banks  selected  by  the  Trustee  are  quoting  on  such  Rate
    Determination Date to leading European banks.
 
        (iii) If on any Rate Determination  Date the Trustee is required but  is
    unable  to determine  the Reserve  Interest Rate  in the  manner provided in
    paragraph (ii) above, LIBOR for the next LIBOR Based Interest Accrual Period
    will be LIBOR as determined on the previous Rate Determination Date, or,  in
    the case of the first Rate Determination Date, 3.1875%.
 
    The  establishment  of LIBOR  by the  Trustee  and the  Trustee's subsequent
calculation of the  rates of interest  applicable to the  Class A-5, Class  A-6,
Class  A-15 and  Class A-16 Certificates  for the relevant  LIBOR Based Interest
Accrual Period, in the absence of manifest error, will be final and binding. The
Pass-Through Rates  on the  Class A-5,  Class  A-6, Class  A-15 and  Class  A-16
Certificates  for any  LIBOR Based  Interest Accrual  Period may  be obtained by
telephoning the Trustee at (612) 223-7900.
 
                                      S-32
<PAGE>
PRINCIPAL (INCLUDING PREPAYMENTS)
 
    The principal balance of  a Class A  Certificate of any  Subclass or of  any
Class  M Certificate at any time is equal to the product of the Class A Subclass
Principal Balance of such Subclass or the Class M Principal Balance, as the case
may be, and such Certificate's  Percentage Interest, and represents the  maximum
specified  dollar amount (exclusive of (i) any  interest that may accrue on such
Class A Certificate (other than interest added to the Class A Subclass Principal
Balance of the Accrual Certificates) or Class M Certificate and (ii) in the case
of the Class A-R and Class A-LR Certificates, any additional amounts to which  a
holder  of the Class A-R or Class  A-LR Certificate may be entitled as described
below  under   "--Additional  Rights   of   the  Class   A-R  and   Class   A-LR
Certificateholders")  to which the holder thereof is entitled from the cash flow
on the  Mortgage  Loans  at  such  time, and  will  decline  to  the  extent  of
distributions  in  reduction of  the principal  balance  of, and  allocations of
losses to, such Certificate. The approximate initial Class A Subclass  Principal
Balance  of each  Subclass of  Class A Certificates  (other than  the Class A-3,
Class A-6  and Class  A-18 Certificates)  and the  approximate initial  Class  M
Principal  Balance are set forth on the cover of this Prospectus Supplement. The
Class A-3 and  Class A-6 Certificates  will have no  Class A Subclass  Principal
Balance.  The  initial Class  A  Subclass Principal  Balance  of the  Class A-18
Certificates is $1,000.
 
  CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS A CERTIFICATES
 
    Distributions  in  reduction  of  the  principal  balance  of  the  Class  A
Certificates  (other than the Class A-3 and Class A-6 Certificates) will be made
on each Distribution Date in an aggregate amount equal to the Class A  Principal
Distribution Amount. The "Class A Principal Distribution Amount" with respect to
any  Distribution Date will be equal to  the sum of (i) the Accrual Distribution
Amount, if any,  with respect to  such Distribution  Date and (ii)  the Class  A
Principal   Amount  with  respect  to   such  Distribution  Date.  The  "Accrual
Distribution Amount" with respect to any Distribution Date will be equal to  the
sum  of  (i)  the  portion,  if  any,  of  current  interest  allocated  but not
distributed to the Accrual Certificates on such Distribution Date in  accordance
with  priority FIRST  of the  Pool Distribution  Amount Allocation  and (ii) the
portion, if any, of the unpaid  Class A Interest Shortfall Amount allocated  but
not  distributed  to  the  Accrual Certificates  on  such  Distribution  Date in
accordance with priority SECOND of the Pool Distribution Amount Allocation.  The
"Class  A Principal Amount" with respect to  any Distribution Date will be equal
to the amount distributed  pursuant to priority THIRD  of the Pool  Distribution
Amount  Allocation, in an aggregate  amount up to the  Class A Optimal Principal
Amount.
 
    The "Class A  Optimal Principal  Amount" with respect  to each  Distribution
Date will be an amount equal to the sum of (i) the Class A Percentage of (A) all
scheduled payments of principal due on each outstanding Mortgage Loan (including
each  defaulted Mortgage  Loan, other  than a  Liquidated Loan,  with respect to
which the related Mortgaged Property has  been acquired by the Trust Estate)  on
the  first day of the  month in which the Distribution  Date occurs, less (B) if
the Bankruptcy Coverage Termination Date has occurred, the principal portion  of
Debt Service Reductions, (ii) the Class A Prepayment Percentage of the Scheduled
Principal  Balance of each  Mortgage Loan which, during  the month preceding the
month of such  Distribution Date  was repurchased  by the  Seller, as  described
under  the heading "The Trust Estates--Mortgage  Loans" in the Prospectus, (iii)
the Class A Prepayment Percentage of  the aggregate net Liquidation Proceeds  on
all  Mortgage Loans  that became  Liquidated Loans  during such  preceding month
(excluding the portion thereof, if any, constituting Net Foreclosure Profits, as
defined  under  "--Additional   Rights  of   the  Class  A-R   and  Class   A-LR
Certificateholders"  below),  less the  amounts  allocable to  principal  of any
unreimbursed  Periodic  Advances  previously  made  by  the  Servicer  and   any
unreimbursed  advances from  the Reserve Fund  (if established)  with respect to
such Liquidated Loans and the portion of the net Liquidation Proceeds  allocable
to  interest, (iv) the Class  A Prepayment Percentage of  an amount equal to the
principal portion of Realized Losses (other  than Bankruptcy Losses due to  Debt
Service  Reductions) incurred in such preceding  month other than Excess Special
Hazard Losses, Excess Fraud Losses and Excess Bankruptcy Losses, (v) the Class A
Prepayment Percentage of the Scheduled  Principal Balance of each Mortgage  Loan
which  was  the subject  of  a principal  prepayment  in full  during  the month
preceding the  month of  such Distribution  Date, (vi)  the Class  A  Prepayment
Percentage  of all  partial principal  prepayments received  by the  Servicer on
 
                                      S-33
<PAGE>
or after the Determination  Date occurring in the  month preceding the month  in
which  such  Distribution  Date  occurs  and  prior  to  the  Determination Date
occurring in the  month in  which such Distribution  Date occurs  and (vii)  the
Class A Percentage of the difference between the unpaid principal balance of any
Mortgage  Loan  substituted  for  a defective  Mortgage  Loan  during  the month
preceding the  month in  which  such Distribution  Date  occurs and  the  unpaid
principal balance of such defective Mortgage Loan, less the amounts allocable to
principal  of any unreimbursed  Periodic Advances and  any unreimbursed advances
from the Reserve Fund (if established)  with respect to such defective  Mortgage
Loan.  See "The Trust  Estates--Mortgage Loans--Assignment of  Mortgage Loans to
the Trustee" in  the Prospectus. In  addition, in  the event that  there is  any
recovery  of  an  amount  in  respect of  principal  which  had  previously been
allocated as a Realized Loss to the  Class A Certificates, each Subclass of  the
Class  A Certificates then outstanding will be entitled to its pro rata share of
such recovery  in an  amount up  to the  amount by  which the  Class A  Subclass
Principal  Balance of  such Subclass  was reduced as  a result  of such Realized
Loss.
 
    The "Scheduled Principal Balance" of a Mortgage Loan as of any  Distribution
Date  is the unpaid principal balance of  such Mortgage Loan as specified in the
amortization schedule at  the time  relating thereto (before  any adjustment  to
such  schedule  by  reason  of  bankruptcy  (other  than  Deficient Valuations),
moratorium or similar waiver or  grace period) as of  the Due Date occurring  in
the  month preceding  the month  in which  such Distribution  Date occurs, after
giving effect to any  principal prepayments or  other unscheduled recoveries  of
principal  previously received, to any  partial principal prepayments applied as
of such Due Date, Deficient Valuations occurring  prior to such Due Date and  to
the  payment  of  principal  due  on such  Due  Date,  and  irrespective  of any
delinquency in payment by the mortgagor.
 
    A "Liquidated Loan" is  a defaulted Mortgage Loan  as to which the  Servicer
has determined that all recoverable liquidation and insurance proceeds have been
received.  A "Liquidated Loan Loss" on a Liquidated Loan is equal to the excess,
if any,  of (i)  the unpaid  principal  balance of  such Liquidated  Loan,  plus
interest  thereon  in  accordance  with the  amortization  schedule  at  the Net
Mortgage Interest Rate through the last day of the month in which such  Mortgage
Loan  was  liquidated,  over  (ii) net  Liquidation  Proceeds.  For  purposes of
calculating the amount of any Liquidated Loan Loss, all net Liquidation Proceeds
(after reimbursement to  the Servicer for  any previously unreimbursed  advance)
will  be applied  first to  accrued interest  and then  to the  unpaid principal
balance of the  Liquidated Loan. A  "Special Hazard Loss"  is a Liquidated  Loan
Loss  occurring as  a result of  a hazard  not insured against  under a standard
hazard insurance policy of the type described in the Prospectus under "The Trust
Estates-- Mortgage Loans--Insurance  Policies." A "Fraud  Loss" is a  Liquidated
Loan  Loss incurred  on a  Liquidated Loan as  to which  there was  fraud in the
origination of such Mortgage Loan. A "Bankruptcy Loss" is a loss attributable to
certain actions which may be  taken by a bankruptcy  court in connection with  a
Mortgage  Loan, including  a reduction  by a  bankruptcy court  of the principal
balance of  or the  interest rate  on a  Mortgage Loan  or an  extension of  its
maturity.  A "Debt Service Reduction" means a reduction in the amount of monthly
payments due  to  certain  bankruptcy  proceedings, but  does  not  include  any
permanent  forgiveness of principal.  A "Deficient Valuation"  with respect to a
Mortgage Loan means  a valuation  by a  court of  the Mortgaged  Property in  an
amount  less than  the outstanding indebtedness  under the Mortgage  Loan or any
reduction in  the  amount  of  monthly payments  that  results  in  a  permanent
forgiveness of principal, which valuation or reduction results from a bankruptcy
proceeding.  Liquidated Loan Losses  (including Special Hazard  Losses and Fraud
Losses) and Bankruptcy Losses are referred to herein as "Realized Losses."
 
    The "Class A Percentage"  for any Distribution Date  occurring prior to  the
Cross-Over  Date is the percentage (subject to rounding), which in no event will
exceed 100%, obtained by dividing the Class A Principal Balance as of such  date
(before  taking into account distributions in  reduction of principal balance on
such date) by the aggregate Scheduled  Principal Balances of all Mortgage  Loans
for such Distribution Date (the "Pool Scheduled Principal Balance"). The Class A
Percentage  for the  first Distribution Date  will be  approximately 95.25%. The
Class  A   Percentage   will   decrease   as  a   result   of   the   allocation
 
                                      S-34
<PAGE>
of certain unscheduled payments in respect of principal according to the Class A
Prepayment  Percentage for  a specified period  to the Class  A Certificates and
will increase as a result  of the allocation of Realized  Losses to the Class  B
and  the Class M Certificates. The Class A Percentage for each Distribution Date
occurring on or after the Cross-Over Date will be 100%.
 
    The "Class  A Prepayment  Percentage" for  any Distribution  Date  occurring
during  the five years beginning on the  first Distribution Date will, except as
provided below, equal 100%. Thereafter,  the Class A Prepayment Percentage  will
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 Class A
Certificates while, in the absence of Realized Losses, increasing the respective
interest in the principal balance of the Mortgage Loans evidenced by the Class M
and Class B Certificates. Increasing the respective interest of the Class M  and
Class B Certificates relative to that of the Class A Certificates is intended to
preserve the availability of the subordination provided by the Class M and Class
B Certificates. See "--Subordination of Class M and Class B Certificates" below.
 
    The  Class A 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  subsequent to  February 1998  to and  including the
Distribution Date in February 1999, the Class A Percentage for such Distribution
Date plus 70% of the Subordinated Percentage for such Distribution Date; for any
Distribution Date subsequent to February 1999 to and including the  Distribution
Date  in February 2000, the  Class A Percentage for  such Distribution Date plus
60%  of  the  Subordinated  Percentage  for  such  Distribution  Date;  for  any
Distribution  Date subsequent to February 2000 to and including the Distribution
Date in February 2001,  the Class A Percentage  for such Distribution Date  plus
40%  of  the  Subordinated  Percentage  for  such  Distribution  Date;  for  any
Distribution Date subsequent to February 2001 to and including the  Distribution
Date  in February 2002, the  Class A Percentage for  such Distribution Date plus
20% of  the Subordinated  Percentage for  such Distribution  Date; and  for  any
Distribution  Date thereafter, the Class A Percentage for such Distribution Date
(unless on  any of  the  foregoing Distribution  Dates  the Class  A  Percentage
exceeds  the initial Class  A Percentage, in  which case the  Class A Prepayment
Percentage  for  such  Distribution  Date  will  once  again  equal  100%).  See
"Prepayment   and   Yield  Considerations"   herein   and  in   the  Prospectus.
Notwithstanding the foregoing, no reduction of the Class A Prepayment Percentage
will occur  if (i)  as of  the  first Distribution  Date as  to which  any  such
reduction  applies,  more than  an average  of 2%  of the  dollar amount  of all
monthly payments  on the  Mortgage Loans  due in  each of  the preceding  twelve
months  were delinquent 60 days or more (including for this purpose any Mortgage
Loans in  foreclosure and  Mortgage  Loans with  respect  to which  the  related
Mortgaged  Property has been  acquired by the Trust  Estate), or (ii) cumulative
Realized Losses with respect  to the Mortgage Loans  exceed (a) with respect  to
the  Distribution  Date in  March  1998, 30%  of  the principal  balance  of the
Subordinated Certificates as  of the  Cut-Off Date  (the "Original  Subordinated
Principal  Balance"), (b) with  respect to the Distribution  Date in March 1999,
35% of the  Original Subordinated  Principal Balance,  (c) with  respect to  the
Distribution  Date in  March 2000,  40% of  the Original  Subordinated Principal
Balance, (d) with respect  to the Distribution  Date in March  2001, 45% of  the
Original   Subordinated  Principal  Balance,   and  (e)  with   respect  to  the
Distribution Date  in March  2002, 50%  of the  Original Subordinated  Principal
Balance.  The  "Subordinated  Percentage"  for  any  Distribution  Date  will be
calculated as the difference  between 100% and the  Class A Percentage for  such
date. The "Subordinated Prepayment Percentage" for any Distribution Date will be
calculated  as the difference between 100% and the Class A Prepayment Percentage
for such  date. If  on  any Distribution  Date the  allocation  to the  Class  A
Certificates  of full and partial principal prepayments and other amounts in the
percentage required above would reduce the outstanding Class A Principal Balance
below zero, the Class A Prepayment Percentage for such Distribution Date will be
limited to the percentage necessary to  reduce the Class A Principal Balance  to
zero.   See  "Description  of   the  Certificates--Distributions  to  Percentage
Certificateholders--Shifting Interest Certificates" in the Prospectus.
 
                                      S-35
<PAGE>
  CALCULATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS M CERTIFICATES
 
    Distributions  in  reduction  of  the  principal  balance  of  the  Class  M
Certificates  will be made on each Distribution Date, pursuant to priority SIXTH
of the Pool Distribution Amount Allocation, in an aggregate amount (the "Class M
Principal Distribution Amount"), up to the Class M Optimal Principal Amount.
 
    The "Class M  Optimal Principal  Amount" with respect  to each  Distribution
Date will be an amount equal to the sum of (i) the Class M Percentage of (A) all
scheduled payments of principal due on each outstanding Mortgage Loan (including
each  defaulted Mortgage  Loan, other  than a  Liquidated Loan,  with respect to
which the related Mortgaged Property has  been acquired by the Trust Estate)  on
the  first day of the  month in which the Distribution  Date occurs, less (B) if
the Bankruptcy Coverage Termination Date has occurred, the principal portion  of
Debt Service Reductions, (ii) the Class M Prepayment Percentage of the Scheduled
Principal  Balance of each  Mortgage Loan which, during  the month preceding the
month of such  Distribution Date  was repurchased  by the  Seller, as  described
under  the heading "The Trust Estates--Mortgage  Loans" in the Prospectus, (iii)
the Class M Prepayment Percentage of  the aggregate net Liquidation Proceeds  on
all  Mortgage Loans  that became  Liquidated Loans  during such  preceding month
(excluding the portion thereof, if  any, constituting Net Foreclosure  Profits),
less  the amounts allocable  to principal of  any unreimbursed Periodic Advances
previously made by the Servicer and  any unreimbursed advances from the  Reserve
Fund  (if established) with respect to such  Liquidated Loans and the portion of
the net Liquidation Proceeds  allocable to Interest,  (iv) on each  Distribution
Date  prior to the reduction of the Class B Principal Balance to zero, the Class
M Prepayment Percentage of an amount equal to the principal portion of  Realized
Losses (other than Bankruptcy Losses due to Debt Service Reductions) incurred in
such  preceding  month other  than Excess  Special  Hazard Losses,  Excess Fraud
Losses and Excess Bankruptcy  Losses, (v) the Class  M Prepayment Percentage  of
the Scheduled Principal Balance of each Mortgage Loan which was the subject of a
principal  prepayment  in full  during  the month  preceding  the month  of such
Distribution Date,  (vi)  the  Class  M Prepayment  Percentage  of  all  partial
principal  prepayments received  by the Servicer  on or  after the Determination
Date occurring in the month preceding the month in which such Distribution  Date
occurs  and prior to the Determination Date occurring in the month in which such
Distribution Date occurs  and (vii)  the Class  M Percentage  of the  difference
between  the unpaid  principal balance  of any  Mortgage Loan  substituted for a
defective Mortgage  Loan during  the month  preceding the  month in  which  such
Distribution  Date occurs  and the  unpaid principal  balance of  such defective
Mortgage Loan,  less the  amounts  allocable to  principal of  any  unreimbursed
Periodic  Advances  and  any unreimbursed  advances  from the  Reserve  Fund (if
established) with  respect  to such  defective  Mortgage Loan.  See  "The  Trust
Estates--Mortgage  Loans--Assignment of  Mortgage Loans  to the  Trustee" in the
Prospectus. In addition, in the event that there is any recovery of an amount in
respect of principal which had previously  been allocated as a Realized Loss  to
the Class M Certificates, the Class M Certificates will be entitled to their pro
rata  share of  such recovery up  to the amount  by which the  Class M Principal
Balance was reduced as a result of such Realized Loss.
 
    The "Class  M  Percentage"  and  "Class M  Prepayment  Percentage"  for  any
Distribution  Date will  equal that portion  of the  Subordinated Percentage and
Subordinated Prepayment  Percentage, as  the  case may  be, represented  by  the
fraction  the  numerator  of which  is  the then-outstanding  Class  M Principal
Balance and the denominator of which is the sum of the Class M Principal Balance
and, if the  Class B Certificates  are entitled to  principal distributions  for
such  Distribution Date  as described in  the succeeding paragraph,  the Class B
Principal Balance.
 
    In  the  event  that  on  any   Distribution  Date,  the  Current  Class   M
Subordination  Level is less than the Original Class M Subordination Level, then
the Class B  Certificates will not  be entitled to  distributions in respect  of
principal  and the Class B  Principal Balance will not  be used to determine the
Class M Percentage and Class M Prepayment Percentage for such Distribution Date.
For such  Distribution Date,  the  Class M  Percentage  and Class  M  Prepayment
Percentage   will  equal  the  Subordinated   Percentage  and  the  Subordinated
Prepayment Percentage, respectively.
 
                                      S-36
<PAGE>
    The "Original Class  M Subordination  Level" is the  percentage obtained  by
dividing  the initial  Class B  Subclass Principal  Balance by  the Cut-Off Date
Aggregate Principal  Balance  of  the  Mortgage  Loans.  The  Original  Class  M
Subordination  Level is expected to be approximately 3.50%. The "Current Class M
Subordination Level" for  any Distribution  Date is the  percentage obtained  by
dividing the sum of the then-outstanding Class B Principal Balance by the sum of
the  Class A Principal  Balance, the Class  M Principal Balance  and the Class B
Principal Balance.
 
  ALLOCATION OF AMOUNT TO BE DISTRIBUTED TO THE CLASS A AND CLASS M CERTIFICATES
 
    Solely for purposes of determining  distributions in reduction of  principal
balance, the Class A-13 and Class A-14 Certificates will be deemed to consist of
more  than  one  component  (each,  a  "Component")  each  with  an identifiable
principal balance (a "Component Principal Balance"). The Class A-13 Certificates
will be deemed to consist of three Components: the "Class A-13A PAC  Component,"
the  "Class A-13B PAC  Component" and the "Class  A-13 Scheduled Component". The
Class A-14 Certificates will be deemed to consist of two Components: the  "Class
A-14  PAC  Component"  and the  "Class  A-14 Scheduled  Companion  Component." A
Beneficial Owner of  a Class  A-13 or  Class A-14  Certificate will  not have  a
severable  interest in any Component, but will have an undivided interest in the
entire Subclass. The Class  A Subclass Principal Balance  of the Class A-13  and
Class  A-14 Certificates will be equal to, on any date, the sum of the Component
Principal Balances  of  their  outstanding  Components  as  of  such  date.  The
Components  comprising  the  Class A-13  or  Class A-14  Certificates  and their
respective initial  Component Principal  Balances  are set  forth in  the  table
below.
 
<TABLE>
<CAPTION>
                                                               INITIAL COMPONENT PRINCIPAL
COMPONENT DESIGNATION                                                   BALANCE(1)
<S>                                                           <C>
Class A-13A PAC Component...................................           $  5,485,000
Class A-13B PAC Component...................................           $ 12,340,000
Class A-14 PAC Component....................................           $ 17,500,000
Class A-13 Scheduled Component..............................           $ 20,000,000
Class A-14 Scheduled Companion Component....................           $ 17,500,000
</TABLE>
 
(1)  Approximate.  The  initial  Component  Principal  Balances  are  subject to
     adjustment in the event that the Class A Subclass Principal Balances of the
     Class A-13 and Class A-14 Certificates are adjusted as described herein.
 
    The Class A-13A PAC Component, the  Class A-13B PAC Component and the  Class
A-14  PAC  Component  (each,  a "PAC  Component")  have  payment characteristics
similar to the  PAC Certificates.  The Class  A-13 Scheduled  Component and  the
Class  A-14  Scheduled Companion  Component (each,  a "Support  Component") have
payment characteristics similar  to the Support  Certificates. In addition,  the
Class  A-13 Scheduled Component  (the "Scheduled Component")  and the Class A-14
Scheduled Companion Component (the "Scheduled Companion Component") have payment
characteristics  similar  to  the  Scheduled  Certificates  and  the   Scheduled
Companion Certificates, respectively.
 
    On  each Distribution Date occurring prior to the Cross-Over Date, a portion
of the Class A Principal Distribution Amount, calculated by multiplying (x)  the
fraction  equal  to $3,000  (I.E.,  the sum  of  the aggregate  initial  Class A
Subclass Principal  Balances  of  the  Class A-18,  Class  A-R  and  Class  A-LR
Certificates)  divided by the aggregate initial Class A Principal Balance of the
Class A Certificates (which fraction, expressed as a percentage, is expected  to
be  approximately 0.000782%) by  (y) the Class  A Principal Distribution Amount,
will be distributed in reduction of  the Class A Subclass Principal Balances  of
the  Class A-18, Class A-R  and Class A-LR Certificates  pro rata based on their
Class A Subclass  Principal Balances.  The remainder  of the  Class A  Principal
Distribution  Amount on each Distribution Date occurring prior to the Cross-Over
Date (the "Adjusted Principal Distribution Amount") will be allocated among  and
distributed  in reduction of  the principal balances of  the other Subclasses of
Class A Certificates as follows:
 
        FIRST,  concurrently,  approximately   36.295994%  to   the  Class   A-1
    Certificates  and approximately 63.704006% to the Class A-2 Certificates, up
    to their respective PAC Principal Amounts with respect to such  Distribution
    Date;
 
                                      S-37
<PAGE>
        SECOND,   concurrently,  approximately  23.744693%   to  the  Class  A-2
    Certificates, approximately  41.443501% to  the Class  A-4 Certificates  and
    approximately  34.811806%  to  the  Class  A-5  Certificates,  up  to  their
    respective PAC Principal Amounts with respect to such Distribution Date;
 
        THIRD,  concurrently,  approximately   23.521830%  to   the  Class   A-2
    Certificates,  approximately  22.945062%  to  the  Class  A-5  Certificates,
    approximately 35.859514%  to the  Class A-7  Certificates and  approximately
    17.673594%  to the  Class A-13A  PAC Component,  up to  their respective PAC
    Principal Amounts with respect to such Distribution Date;
 
        FOURTH,  concurrently,  approximately  23.796418%   to  the  Class   A-2
    Certificates,  approximately 24.714559%  to the  Class A-5  Certificates and
    approximately  51.489023%  to  the  Class  A-8  Certificates,  up  to  their
    respective PAC Principal Amounts with respect to such Distribution Date;
 
        FIFTH,   concurrently,  approximately   24.239984%  to   the  Class  A-5
    Certificates and approximately 75.760016% to the Class A-9 Certificates,  up
    to  their respective PAC Principal Amounts with respect to such Distribution
    Date;
 
        SIXTH,  concurrently,   approximately  6.978985%   to  the   Class   A-5
    Certificates,  approximately  38.774360%  to  the  Class  A-10 Certificates,
    approximately 22.433101% to the Class A-13B PAC Component and  approximately
    31.813554%  to  the Class  A-14 PAC  Component, up  to their  respective PAC
    Principal Amounts with respect to such Distribution Date;
 
        SEVENTH, to  the Class  A-11  Certificates, up  to their  PAC  Principal
    Amount with respect to such Distribution Date;
 
        EIGHTH,  sequentially, to the Class A-12 Certificates and the Class A-13
    Scheduled Component, up to their  respective Reduction Amounts with  respect
    to such Distribution Date;
 
        NINTH,  concurrently, approximately  35.00% to the  Class A-14 Scheduled
    Companion Component, approximately 50.00% to the Class A-15 Certificates and
    approximately 15.00% to the Class A-16 Certificates, up to their  respective
    Reduction Amounts with respect to such Distribution Date;
 
        TENTH,  to  the  Class A-17  Certificates,  until the  Class  A Subclass
    Principal Balance thereof has been reduced to zero;
 
        ELEVENTH, concurrently, approximately 35.00% to the Class A-14 Scheduled
    Companion Component, approximately 50.00% to the Class A-15 Certificates and
    approximately 15.00% to the Class A-16 Certificates, without regard to their
    respective Reduction  Amounts, until  their respective  Component  Principal
    Balance and Class A Subclass Principal Balances have been reduced to zero;
 
        TWELFTH,  to the Class  A-13 Scheduled Component,  without regard to its
    Reduction Amount, until its Component Principal Balance has been reduced  to
    zero;
 
        THIRTEENTH,  to  the Class  A-12 Certificates,  without regard  to their
    Reduction Amount, until the Class  A Subclass Principal Balance thereof  has
    been reduced to zero;
 
        FOURTEENTH,  concurrently,  approximately  36.295994% to  the  Class A-1
    Certificates and  approximately 63.704006%  to the  Class A-2  Certificates,
    without regard to their respective PAC Principal Amounts and until the Class
    A  Subclass Principal Balance of the Class A-1 Certificates has been reduced
    to zero;
 
        FIFTEENTH, concurrently,  approximately  23.744693%  to  the  Class  A-2
    Certificates,  approximately 41.443501%  to the  Class A-4  Certificates and
    approximately 34.811806% to  the Class A-5  Certificates, without regard  to
    their  respective  PAC  Principal Amounts  and  until the  Class  A Subclass
    Principal Balance of the Class A-4 Certificates has been reduced to zero;
 
        SIXTEENTH, concurrently,  approximately  23.521830%  to  the  Class  A-2
    Certificates,  approximately  22.945062%  to  the  Class  A-5  Certificates,
    approximately 35.859514% to the Class A-7 Certificates
 
                                      S-38
<PAGE>
    and approximately  17.673594%  to the  Class  A-13A PAC  Component,  without
    regard  to  their respective  PAC Principal  Amounts and  until the  Class A
    Subclass Principal Balance of the  Class A-7 Certificates and the  Component
    Principal  Balance of  the Class  A-13A PAC  Component have  been reduced to
    zero;
 
        SEVENTEENTH, concurrently,  approximately 23.796418%  to the  Class  A-2
    Certificates,  approximately 24.714559%  to the  Class A-5  Certificates and
    approximately 51.489023% to  the Class A-8  Certificates, without regard  to
    their  respective  PAC  Principal Amounts  and  until the  Class  A Subclass
    Principal Balances of  the Class A-2  and Class A-8  Certificates have  been
    reduced to zero;
 
        EIGHTEENTH,  concurrently,  approximately  24.239984% to  the  Class A-5
    Certificates and  approximately 75.760016%  to the  Class A-9  Certificates,
    without regard to their respective PAC Principal Amounts and until the Class
    A  Subclass Principal Balance of the Class A-9 Certificates has been reduced
    to zero;
 
        NINTEENTH,  concurrently,  approximately  6.978985%  to  the  Class  A-5
    Certificates,  approximately  38.774360%  to  the  Class  A-10 Certificates,
    approximately 22.433101% to the Class A-13B PAC Component and  approximately
    31.813554%  to  the  Class  A-14  PAC  Component,  without  regard  to their
    respective PAC  Principal  Amounts  until the  Class  A  Subclass  Principal
    Balances  of the Class A-5 Certificates  and the Class A-10 Certificates and
    the Component Principal Balances  of the Class A-13B  PAC Component and  the
    Class A-14 PAC Component have been reduced to zero; and
 
        TWENTIETH,  to the Class A-11 Certificates,  without regard to their PAC
    Principal Amount until  their Class  A Subclass Principal  Balance has  been
    reduced to zero.
 
    As  used above, the "PAC Principal Amount" for any Distribution Date and for
any Subclass of PAC Certificates or any PAC Component means the amount, if  any,
that  would reduce the  Class A Subclass  Principal Balance of  such Subclass or
Component Principal  Balance of  such PAC  Component to  the percentage  of  its
initial  Class  A  Subclass  Principal Balance  or  initial  Component Principal
Balance shown in the  tables set forth below  with respect to such  Distribution
Date.
 
    As  used above, the "Reduction Amount" for any Distribution Date and for any
Subclass of Support Certificates (other than the Class A-17 Certificates) or any
Support Component  means the  amount, if  any,  that would  reduce the  Class  A
Subclass  Principal Balance of such Subclass  or the Component Principal Balance
of such Support  Component to  the percentage of  its initial  Class A  Subclass
Principal  Balance or  initial Component Principal  Balance shown  in the tables
beginning on page S-45 with respect to such Distribution Date.
 
    On each Distribution  Date occurring on  or after the  Cross-Over Date,  the
Class  A Principal Distribution Amount will  be distributed among the Subclasses
of Class A Certificates pro rata in accordance with their respective outstanding
Class A Subclass Principal Balances without regard to either the priorities  set
forth above or the following tables.
 
    Amounts  distributed on  each Distribution  Date to  the holders  of Class A
Certificates in  reduction of  principal  balance will  be allocated  among  the
holders  of Class A Certificates of each  Subclass (other than the Class A-3 and
Class A-6 Certificates) pro rata in accordance with their respective  Percentage
Interests.
 
    Amounts  distributed  on any  Distribution Date  to the  holders of  Class M
Certificates in  reduction of  principal  balance will  be allocated  among  the
holders  of Class  M Certificates pro  rata in accordance  with their respective
Percentage Interests.
 
    The following tables set forth for each Distribution Date the planned  Class
A  Subclass  Principal Balance  for each  Subclass of  PAC Certificates  and the
planned Component  Principal Balance  for  each PAC  Component, expressed  as  a
percentage of the initial Class A Subclass Principal Balance of such Subclass or
the  initial  Component  Principal Balance  of  such PAC  Component.  The tables
beginning on page S-45 set forth for each Distribution Date the reduced Class  A
Subclass Principal Balance for each Subclass of Support Certificates (other than
the Class A-17 Certificates) and the reduced Component
 
                                      S-39
<PAGE>
Principal  Balance for each Support Component,  expressed as a percentage of the
initial Class  A Subclass  Principal Balance  of such  Subclass or  the  initial
Component  Principal Balance of  such Support Component.  Because the Class A-13
and Class A-14 Certificates consist of PAC Components and Support Components, on
any Distribution Date  the percentages  associated with such  PAC Components  or
Support  Components, as set forth in the applicable table, may be different from
the percentage represented by  the then outstanding  Class A Subclass  Principal
Balance  of the Class A-13 or Class A-14  Certificates, as the case may be, over
the initial Class A Subclass Principal Balance of such Subclass.
 
                  PLANNED CLASS A SUBCLASS PRINCIPAL BALANCES
         AS PERCENTAGES OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCES
                             CLASS A-1 CERTIFICATES
 
<TABLE>
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  Up to and
  including
  August
  1993.........  100.00000000 %
  September
   1993........   95.12737338
  October
   1993........   90.02234454
  November
   1993........   84.68785944
  December
   1993........   79.12703504
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  January
   1994........   73.34323637 %
  February
   1994........   67.34003927
  March 1994...   61.12129582
  April 1994...   54.69092228
  May 1994.....   48.05282736
  June 1994....   41.21107099
  July 1994....   34.16986049
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  August
   1994........   26.93354640 %
  September
   1994........   19.50679806
  October
   1994........   11.89423387
  November
   1994........    4.10123293
  December 1994
   and
  thereafter...      0.000000
</TABLE>
                             CLASS A-2 CERTIFICATES
 
<TABLE>
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  Up to and
  including
  August
  1993.........  100.00000000 %
  September
   1993........   97.78516972
  October
   1993........   95.46470206
  November
   1993........   93.03993611
  December
   1993........   90.51228865
  January
   1994........   87.88328926
  February
   1994........   85.15456330
  March 1994...   82.32786174
  April 1994...   79.40496467
  May 1994.....   76.38764880
  June 1994....   73.27775954
  July 1994....   70.07720931
  August
   1994........   66.78797564
  September
   1994........   63.41218094
  October
   1994........   59.95192449
  November
   1994........   56.40965133
  December
   1994........   53.89030399
  January
   1995........   52.51156318
 
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  February
   1995........   51.10501790 %
  March 1995...   49.67172642
  April 1995...   48.21301730
  May 1995.....   46.73093584
  June 1995....   45.22917346
  July 1995....   43.71853958
  August
   1995........   42.21440589
  September
   1995........   40.72133902
  October
   1995........   39.23926403
  November
   1995........   37.76810654
  December
   1995........   36.30779271
  January
   1996........   34.85824924
  February
   1996........   33.41940334
  March 1996...   32.00435444
  April 1996...   30.59999343
  May 1996.....   29.20601645
  June 1996....   27.82235350
  July 1996....   26.44893509
  August
   1996........   25.08569221
  September
   1996........   23.73255637
<CAPTION>
                 PERCENTAGE OF
                 INITIAL CLASS
                       A
                   SUBCLASS
  DISTRIBUTION     PRINCIPAL
      DATE          BALANCE
  -------------  -------------
  <S>            <C>
  October
   1996........   22.38945959 %
  November
   1996........   21.05633438
  December
   1996........   19.72857610
  January
   1997........   18.39986145
  February
   1997........   17.08103292
  March 1997...   15.77202421
  April 1997...   14.47276951
  May 1997.....   13.18320348
  June 1997....   11.90326128
  July 1997....   10.63287854
  August
   1997........    9.37199135
  September
   1997........    8.12053627
  October
   1997........    6.87845036
  November
   1997........    5.64567110
  December
   1997........    4.42213646
  January
   1998........    3.20778487
  February
   1998........    2.00255519
  March 1998...    0.82002777
  April 1998
   and
  thereafter...    0.00000000
</TABLE>
 
                                      S-40
<PAGE>
                  PLANNED CLASS A SUBCLASS PRINCIPAL BALANCES
         AS PERCENTAGES OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCES
                             CLASS A-4 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and including
November 1994..........       100.00000000%
December 1994..........        96.90249457
January 1995...........        90.38390570
February 1995..........        83.73385922
March 1995.............        76.95735863
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
April 1995.............        70.06068523%
May 1995...............        63.05350910
June 1995..............        55.95328294
July 1995..............        48.81111296
August 1995............        41.69967542
September 1995.........        34.64056101
October 1995...........        27.63341544
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
November 1995..........        20.67788704%
December 1995..........        13.77362669
January 1996...........         6.92028780
February 1996..........         0.11752631
March 1996
 and thereafter........         0.00000000
</TABLE>
                             CLASS A-5 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
November 1994..........       100.00000000%
December 1994..........        98.89797119
January 1995...........        96.57879116
February 1995..........        94.21284121
March 1995.............        91.80190148
April 1995.............        89.34820674
May 1995...............        86.85519740
June 1995..............        84.32908277
July 1995..............        81.78804538
August 1995............        79.25794197
September 1995.........        76.74645405
October 1995...........        74.25345558
November 1995..........        71.77882144
December 1995..........        69.32242742
January 1996...........        66.88415021
February 1996..........        64.46386739
March 1996.............        62.86614406
April 1996.............        61.29437503
May 1996...............        59.73422787
June 1996..............        58.18562423
July 1996..............        56.64848633
August 1996............        55.12273695
September 1996.........        53.60829943
October 1996...........        52.10509769
November 1996..........        50.61305618
December 1996..........        49.09855011
January 1997...........        47.51524416
February 1997..........        45.94371857
March 1997.............        44.38389436
April 1997.............        42.83569310
May 1997...............        41.29903692
 
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
June 1997..............        39.77384858%
July 1997..............        38.26005135
August 1997............        36.75756909
September 1997.........        35.26632620
October 1997...........        33.78624767
November 1997..........        32.31725903
December 1997..........        30.85928634
January 1998...........        29.41225623
February 1998..........        27.97609586
March 1998.............        26.56698767
April 1998.............        25.17648259
May 1998...............        23.81497854
June 1998..............        22.46364145
July 1998..............        21.12240127
August 1998............        19.79118845
September 1998.........        18.46993395
October 1998...........        17.15856920
November 1998..........        15.87132080
December 1998..........        14.61201748
January 1999...........        13.38011133
February 1999..........        12.17506473
March 1999.............        11.00818886
April 1999.............         9.86682612
May 1999...............         8.75047147
June 1999..............         7.90771656
July 1999..............         7.60027952
August 1999............         7.29962269
September 1999.........         7.00561137
October 1999...........         6.71811339
November 1999..........         6.43699913
December 1999..........         6.16214138
January 2000...........         5.89341538
February 2000..........         5.63069872
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
March 2000.............         5.37961796%
April 2000.............         5.13411826
May 2000...............         4.89408691
June 2000..............         4.65941340
July 2000..............         4.42998932
August 2000............         4.20570833
September 2000.........         3.98646615
October 2000...........         3.77216051
November 2000..........         3.56269110
December 2000..........         3.35795955
January 2001...........         3.15786937
February 2001..........         2.96232594
March 2001.............         2.77580104
April 2001.............         2.59344152
May 2001...............         2.41516258
June 2001..............         2.24088105
July 2001..............         2.07051540
August 2001............         1.90398567
September 2001.........         1.74121345
October 2001...........         1.58212186
November 2001..........         1.42663550
December 2001..........         1.27468045
January 2002...........         1.12618423
February 2002..........         0.98107576
March 2002.............         0.84268296
April 2002.............         0.70735476
May 2002...............         0.57502971
June 2002..............         0.44564753
July 2002..............         0.31914912
August 2002............         0.19547647
September 2002.........         0.07457270
October 2002
 and thereafter........         0.00000000
</TABLE>
 
                                      S-41
<PAGE>
                  PLANNED CLASS A SUBCLASS PRINCIPAL BALANCES
         AS PERCENTAGES OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCES
                             CLASS A-7 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
February 1996..........       100.00000000%
March 1996.............        89.52595814
April 1996.............        78.94515599
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
May 1996...............        68.44258969%
June 1996..............        58.01773188
July 1996..............        47.67005890
August 1996............        37.39905088
September 1996.........        27.20419182
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
October 1996...........        17.08496949%
November 1996..........         7.04087543
December 1996
 and thereafter........         0.00000000
</TABLE>
                             CLASS A-8 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
November 1996..........       100.00000000%
December 1996..........        98.04569312
January 1997...........        91.44234027
February 1997..........        84.88811878
March 1997.............        78.38269914
 
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
April 1997.............        71.92575430%
May 1997...............        65.51695955
June 1997..............        59.15599265
July 1997..............        52.84253364
August 1997............        46.57626495
September 1997.........        40.35687133
October 1997...........        34.18403991
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
November 1997..........        28.05746006%
December 1997..........        21.97682349
January 1998...........        15.94182416
February 1998..........         9.95215828
March 1998.............         4.07531649
April 1998
 and thereafter........         0.00000000
</TABLE>
                             CLASS A-9 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
March 1998.............       100.00000000%
April 1998.............        97.64891386
May 1998...............        89.90491530
June 1998..............        82.21874466
July 1998..............        74.59000351
 
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
August 1998............        67.01829627%
September 1998.........        59.50323015
October 1998...........        52.04441525
November 1998..........        44.72276994
December 1998..........        37.56007141
January 1999...........        30.55320323
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
February 1999..........        23.69910751%
March 1999.............        17.06212025
April 1999.............        10.57024726
May 1999...............         4.22061589
June 1999
 and thereafter........         0.00000000
</TABLE>
 
                                      S-42
<PAGE>
                  PLANNED CLASS A SUBCLASS PRINCIPAL BALANCES
         AS PERCENTAGES OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCES
                            CLASS A-10 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
May 1999...............       100.00000000%
June 1999..............        98.74243515
July 1999..............        94.90351638
August 1999............        91.14926102
September 1999.........        87.47798702
October 1999...........        83.88804423
November 1999..........        80.37781379
December 1999..........        76.94570755
January 2000...........        73.59016748
February 2000..........        70.30966521
March 2000.............        67.17445853
April 2000.............        64.10894164
May 2000...............        61.11170733
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
June 2000..............        58.18137545%
July 2000..............        55.31659231
August 2000............        52.51603021
September 2000.........        49.77838702
October 2000...........        47.10238562
November 2000..........        44.48677349
December 2000..........        41.93032219
January 2001...........        39.43182701
February 2001..........        36.99010640
March 2001.............        34.66099887
April 2001.............        32.38390369
May 2001...............        30.15776202
June 2001..............        27.98153552
July 2001..............        25.85420599
August 2001............        23.77477496
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
September 2001.........        21.74226340%
October 2001...........        19.75571122
November 2001..........        17.81417707
December 2001..........        15.91673786
January 2002...........        14.06248847
February 2002..........        12.25054145
March 2002.............        10.52245193
April 2002.............         8.83262960
May 2002...............         7.18030714
June 2002..............         5.56473193
July 2002..............         3.98516572
August 2002............         2.44088444
September 2002.........         0.93117779
October 2002
 and thereafter........         0.00000000
</TABLE>
                            CLASS A-11 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
September 2002.........       100.00000000%
October 2002...........        98.68613104
November 2002..........        95.20604460
December 2002..........        91.80441731
January 2003...........        88.47966351
February 2003..........        85.23022769
March 2003.............        82.05458440
April 2003.............        78.95123747
May 2003...............        75.91871947
June 2003..............        72.95559115
July 2003..............        70.06044095
August 2003............        67.23188449
September 2003.........        64.46856414
October 2003...........        61.76914827
November 2003..........        59.13233101
December 2003..........        56.55683182
 
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
January 2004...........        54.04139464%
February 2004..........        51.58478783
March 2004.............        49.18580353
April 2004.............        46.84325720
May 2004...............        44.55598724
June 2004..............        42.32285454
July 2004..............        40.14274214
August 2004............        38.01455458
September 2004.........        35.93721782
October 2004...........        33.90967846
November 2004..........        31.93090387
December 2004..........        29.99988124
January 2005...........        28.11561755
February 2005..........        26.27713906
March 2005.............        24.48349112
April 2005.............        22.73373753
May 2005...............        21.02696040
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
June 2005..............        19.36225983%
July 2005..............        17.73875341
August 2005............        16.15557602
September 2005.........        14.61187945
October 2005...........        13.10683208
November 2005..........        11.63961865
December 2005..........        10.20943972
January 2006...........         8.81551169
February 2006..........         7.45706622
March 2006.............         6.13335022
April 2006.............         4.84407034
May 2006...............         3.58804517
June 2006..............         2.36456536
July 2006..............         1.17325216
August 2006............         0.01361751
September 2006
 and thereafter........         0.00000000
</TABLE>
 
                                      S-43
<PAGE>
                      PLANNED COMPONENT PRINCIPAL BALANCES
             AS PERCENTAGES OF INITIAL COMPONENT PRINCIPAL BALANCE
                           CLASS A-13A PAC COMPONENT
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
February 1996..........       100.00000000%
March 1996.............        89.52595814
April 1996.............        78.94515599
 
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
May 1996...............        68.44258969%
June 1996..............        58.01773188
July 1996..............        47.67005890
August 1996............        37.39905088
September 1996.........        27.20419182
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
October 1996...........        17.08496949%
November 1996..........         7.04087543
December 1996
 and thereafter........         0.00000000
</TABLE>
 
                 CLASS A-13B PAC AND CLASS A-14 PAC COMPONENTS
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
Up to and
including
May 1999...............       100.00000000%
June 1999..............        98.74243515
July 1999..............        94.90351638
August 1999............        91.14926102
September 1999.........        87.47798702
October 1999...........        83.88804423
November 1999..........        80.37781379
December 1999..........        76.94570755
January 2000...........        73.59016748
February 2000..........        70.30966521
March 2000.............        67.17445853
April 2000.............        64.10894164
May 2000...............        61.11170733
 
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
June 2000..............        58.18137545%
July 2000..............        55.31659231
August 2000............        52.51603021
September 2000.........        49.77838702
October 2000...........        47.10238562
November 2000..........        44.48677349
December 2000..........        41.93032219
January 2001...........        39.43182701
February 2001..........        36.99010640
March 2001.............        34.66099887
April 2001.............        32.38390369
May 2001...............        30.15776202
June 2001..............        27.98153552
July 2001..............        25.85420599
August 2001............        23.77477496
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
September 2001.........        21.74226340%
October 2001...........        19.75571122
November 2001..........        17.81417707
December 2001..........        15.91673786
January 2002...........        14.06248847
February 2002..........        12.25054145
March 2002.............        10.52245193
April 2002.............         8.83262960
May 2002...............         7.18030714
June 2002..............         5.56473193
July 2002..............         3.98516572
August 2002............         2.44088444
September 2002.........         0.93117779
October 2002
 and thereafter........         0.00000000
</TABLE>
 
                                      S-44
<PAGE>
                            REDUCTION AMOUNT TABLES
               CLASS A-12, CLASS A-15 AND CLASS A-16 CERTIFICATES
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
March 1993.............        98.36314640%
April 1993.............        96.52252466
May 1993...............        94.47974866
June 1993..............        92.23675455
July 1993..............        89.79579924
August 1993............        87.15945791
September 1993.........        86.21212815
October 1993...........        85.16534037
November 1993..........        84.02145868
December 1993..........        82.78308123
January 1994...........        81.45307419
February 1994..........        80.03454595
March 1994.............        78.53087202
April 1994.............        76.94558330
May 1994...............        75.28232802
June 1994..............        73.54494435
July 1994..............        71.73745070
August 1994............        69.86403538
September 1994.........        67.92912882
October 1994...........        65.93721968
November 1994..........        63.89322019
December 1994..........        61.80205652
January 1995...........        59.66879881
February 1995..........        57.49855364
March 1995.............        55.29677860
April 1995.............        53.06964393
May 1995...............        50.82516068
June 1995..............        48.57551480
July 1995..............        46.35118125
August 1995............        44.19331978
September 1995.........        42.11299338
October 1995...........        40.10859526
November 1995..........        38.17854750
December 1995..........        36.32130065
January 1996...........        34.53533319
February 1996..........        32.81915103
March 1996.............        31.17128707
April 1996.............        29.59030075
May 1996...............        28.07477759
June 1996..............        26.62332868
July 1996..............        25.23459033
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
August 1996............        23.90722362%
September 1996.........        22.63991393
October 1996...........        21.43137056
November 1996..........        20.28032626
December 1996..........        19.18553690
January 1997...........        18.14578106
February 1997..........        17.15985961
March 1997.............        16.22659531
April 1997.............        15.34483252
May 1997...............        14.51343670
June 1997..............        13.73129415
July 1997..............        12.99731160
August 1997............        12.31041592
September 1997.........        11.66955366
October 1997...........        11.07369080
November 1997..........        10.52181238
December 1997..........        10.01292219
January 1998...........         9.54604241
February 1998..........         9.12021334
March 1998.............         8.77601190
April 1998.............         8.47024193
May 1998...............         8.20199791
June 1998..............         7.97039114
July 1998..............         7.77454949
August 1998............         7.61361711
September 1998.........         7.48675413
October 1998...........         7.39313635
November 1998..........         7.30413989
December 1998..........         7.21138954
January 1999...........         7.11504222
February 1999..........         7.01525037
March 1999.............         6.91033304
April 1999.............         6.80233180
May 1999...............         6.69138489
June 1999..............         6.57762653
July 1999..............         6.46118694
August 1999............         6.34219246
September 1999.........         6.22076564
October 1999...........         6.09702538
November 1999..........         5.97108687
December 1999..........         5.84306189
<CAPTION>
                            PERCENTAGE OF
                           INITIAL CLASS A
     DISTRIBUTION             SUBCLASS
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
January 2000...........         5.71305875%
February 2000..........         5.58118241
March 2000.............         5.44471313
April 2000.............         5.30671840
May 2000...............         5.16728958
June 2000..............         5.02651507
July 2000..............         4.88448040
August 2000............         4.74126827
September 2000.........         4.59695867
October 2000...........         4.45162889
November 2000..........         4.30535364
December 2000..........         4.15820511
January 2001...........         4.01025299
February 2001..........         3.86156458
March 2001.............         3.71028001
April 2001.............         3.55853076
May 2001...............         3.40637147
June 2001..............         3.25385481
July 2001..............         3.10103149
August 2001............         2.94795030
September 2001.........         2.79465814
October 2001...........         2.64120011
November 2001..........         2.48761956
December 2001..........         2.33395811
January 2002...........         2.18025570
February 2002..........         2.02655063
March 2002.............         1.87176604
April 2002.............         1.71717018
May 2002...............         1.56279021
June 2002..............         1.40865205
July 2002..............         1.25478040
August 2002............         1.10119883
September 2002.........         0.94792974
October 2002...........         0.79499446
November 2002..........         0.64241327
December 2002..........         0.49020536
January 2003...........         0.33838891
February 2003..........         0.18698119
March 2003.............         0.03599843
April 2003
 and thereafter........         0.00000000
</TABLE>
 
                                      S-45
<PAGE>
                            REDUCTION AMOUNT TABLES
                  CLASS A-13 AND CLASS A-14 SUPPORT COMPONENTS
 
<TABLE>
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
March 1993.............        98.36314640%
April 1993.............        96.52252466
May 1993...............        94.47974866
June 1993..............        92.23675455
July 1993..............        89.79579924
August 1993............        87.15945791
September 1993.........        86.21212815
October 1993...........        85.16534037
November 1993..........        84.02145868
December 1993..........        82.78308123
January 1994...........        81.45307419
February 1994..........        80.03454595
March 1994.............        78.53087202
April 1994.............        76.94558330
May 1994...............        75.28232802
June 1994..............        73.54494435
July 1994..............        71.73745070
August 1994............        69.86403538
September 1994.........        67.92912882
October 1994...........        65.93721968
November 1994..........        63.89322019
December 1994..........        61.80205652
January 1995...........        59.66879881
February 1995..........        57.49855364
March 1995.............        55.29677860
April 1995.............        53.06964393
May 1995...............        50.82516068
June 1995..............        48.57551480
July 1995..............        46.35118125
August 1995............        44.19331978
September 1995.........        42.11299338
October 1995...........        40.10859526
November 1995..........        38.17854750
December 1995..........        36.32130065
January 1996...........        34.53533319
February 1996..........        32.81915103
March 1996.............        31.17128707
April 1996.............        29.59030075
May 1996...............        28.07477759
June 1996..............        26.62332868
July 1996..............        25.23459033
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
August 1996............        23.90722362%
September 1996.........        22.63991393
October 1996...........        21.43137056
November 1996..........        20.28032626
December 1996..........        19.18553690
January 1997...........        18.14578106
February 1997..........        17.15985961
March 1997.............        16.22659531
April 1997.............        15.34483252
May 1997...............        14.51343670
June 1997..............        13.73129415
July 1997..............        12.99731160
August 1997............        12.31041592
September 1997.........        11.66955366
October 1997...........        11.07369080
November 1997..........        10.52181238
December 1997..........        10.01292219
January 1998...........         9.54604241
February 1998..........         9.12021334
March 1998.............         8.77601190
April 1998.............         8.47024193
May 1998...............         8.20199791
June 1998..............         7.97039114
July 1998..............         7.77454949
August 1998............         7.61361711
September 1998.........         7.48675413
October 1998...........         7.39313635
November 1998..........         7.30413989
December 1998..........         7.21138954
January 1999...........         7.11504222
February 1999..........         7.01525037
March 1999.............         6.91033304
April 1999.............         6.80233180
May 1999...............         6.69138489
June 1999..............         6.57762653
July 1999..............         6.46118694
August 1999............         6.34219246
September 1999.........         6.22076564
October 1999...........         6.09702538
November 1999..........         5.97108687
December 1999..........         5.84306189
<CAPTION>
                            PERCENTAGE OF
                               INITIAL
     DISTRIBUTION             COMPONENT
         DATE             PRINCIPAL BALANCE
- -----------------------  -------------------
<S>                      <C>
January 2000...........         5.71305875%
February 2000..........         5.58118241
March 2000.............         5.44471313
April 2000.............         5.30671840
May 2000...............         5.16728958
June 2000..............         5.02651507
July 2000..............         4.88448040
August 2000............         4.74126827
September 2000.........         4.59695867
October 2000...........         4.45162889
November 2000..........         4.30535364
December 2000..........         4.15820511
January 2001...........         4.01025299
February 2001..........         3.86156458
March 2001.............         3.71028001
April 2001.............         3.55853076
May 2001...............         3.40637147
June 2001..............         3.25385481
July 2001..............         3.10103149
August 2001............         2.94795030
September 2001.........         2.79465814
October 2001...........         2.64120011
November 2001..........         2.48761956
December 2001..........         2.33395811
January 2002...........         2.18025570
February 2002..........         2.02655063
March 2002.............         1.87176604
April 2002.............         1.71717018
May 2002...............         1.56279021
June 2002..............         1.40865205
July 2002..............         1.25478040
August 2002............         1.10119883
September 2002.........         0.94792974
October 2002...........         0.79499446
November 2002..........         0.64241327
December 2002..........         0.49020536
January 2003...........         0.33838891
February 2003..........         0.18698119
March 2003.............         0.03599843
April 2003
 and thereafter........         0.00000000
</TABLE>
 
                                      S-46
<PAGE>
    The Reduction Amounts  for each  Distribution Date have  been determined  by
assuming  that the  Mortgage Loans  prepay at  a CONSTANT  rate of  300% SPA (as
defined herein under "Prepayment and Yield Considerations") and by utilizing the
other assumptions specified in the first  full paragraph on page S-71.  HOWEVER,
IT  IS HIGHLY  UNLIKELY THAT  PRINCIPAL PREPAYMENTS  ON THE  MORTGAGE LOANS WILL
OCCUR AT ANY CONSTANT RATE  OR THAT THE MORTGAGE LOANS  WILL PREPAY AT THE  SAME
RATE.  In addition, there may be  differences between the characteristics of the
mortgage loans ultimately included  in the Trust Estate  and the Mortgage  Loans
which  are expected to be included  as described herein. Consequently, there can
be no assurance that  the Class A Subclass  Principal Balances of the  Scheduled
Certificates  or the Scheduled Companion Certificates or the Component Principal
Balance of  the Class  A-13  Scheduled Component  or  the Class  A-14  Scheduled
Companion  Component, after the  application of the distributions  to be made on
any Distribution Date, will be equal  to the balances expressed as a  percentage
of the initial Class A Subclass Principal Balance or initial Component Principal
Balance for such Distribution Date specified in the tables above.
 
    On each Distribution Date, the excess of the Adjusted Principal Distribution
Amount  over  the  PAC Principal  Amounts  and  the Reduction  Amounts  for such
Distribution Date  will  be  distributed,  in  accordance  with  the  priorities
described  above, first to  the Companion Certificates,  second, concurrently to
the Scheduled  Companion Certificates  and  the Scheduled  Companion  Component,
third  to  the Scheduled  Component and  fourth  to the  Scheduled Certificates.
Therefore, the extent to which the scheduled principal balances indicated in the
Reduction Amount  tables  beginning  on  page S-45  will  be  achieved  and  the
sensitivity  of  the  Support Certificates  and  the Subclasses  comprised  of a
Support Component to the rate of prepayments on the Mortgage Loans will  depend,
in  part  (i)  in the  case  of  the Scheduled  Certificates  and  the Scheduled
Component, on the period  of time during which  the Companion Certificates,  the
Scheduled  Companion Certificates  and the Scheduled  Companion Component remain
outstanding and (ii) in the case of the Scheduled Companion Certificates and the
Scheduled Companion Component, on the period of time during which the  Companion
Certificates   remain  outstanding.  The  period   of  time  during  which  such
Certificates and Components remain outstanding depends, in part, on the relative
sizes of the principal balances of such Certificates and Components. Because  of
the  relative sizes of the principal balances of the Companion Certificates, the
Scheduled Companion Certificates  and the Scheduled  Companion Component, it  is
likely  that at a constant rate of prepayment on the Mortgage Loans in excess of
300% SPA  the Scheduled  Certificates and  the Scheduled  Component will  remain
outstanding  after  the principal  balances of  the Companion  Certificates, the
Scheduled Companion Certificates and the Scheduled Companion Component have been
reduced to  zero.  In  such an  event,  the  excess of  the  Adjusted  Principal
Distribution  Amount over the  PAC Principal Amounts  for such Distribution Date
will be distributed in  reduction of the Class  A Subclass Principal Balance  of
the  Scheduled Certificates and the Component Principal Balance of the Scheduled
Component in accordance with the priorities set forth herein until such Class  A
Subclass  Principal Balance and Component Principal Balance have been reduced to
zero without regard to the Reduction Amounts.
 
    Because of  the relatively  small size  of the  Class A  Subclass  Principal
Balance  of the Companion Certificates, it is unlikely that the distributions in
reduction of the Class A Subclass Principal Balances of the Scheduled  Companion
Certificates  and  the Component  Principal Balance  of the  Scheduled Companion
Component will  vary  significantly  from the  distributions  which  would  have
resulted  had  such  Certificates  and Component  paid  in  accordance  with the
priorities set forth herein until the Class A Subclass Principal Balance of each
such Subclass and  the Component Principal  Balance of each  such Component  had
been  reduced  to zero  without regard  to the  Reduction Amounts.  The weighted
average life  of the  Companion Certificates  will be  reduced significantly  at
prepayment  rates  on  the  Mortgage  Loans in  excess  of  a  constant  rate of
approximately 300% SPA. See "Prepayment and Yield Considerations" herein and the
table set forth therein on page S-75.
 
  PRINCIPAL PAYMENT CHARACTERISTICS OF THE PAC CERTIFICATES, THE PAC COMPONENTS,
   THE SUPPORT CERTIFICATES AND THE SUPPORT COMPONENTS
 
    The percentages of the  initial Class A Subclass  Principal Balances of  the
PAC  Certificates and the Component Principal Balances of the PAC Components set
forth in the tables above were calculated
 
                                      S-47
<PAGE>
using, among other things, the assumptions described in the first full paragraph
on page S-71 herein. Based on  such assumptions, the Class A Subclass  Principal
Balance  of each Subclass of PAC  Certificates or Component Principal Balance of
each PAC Component would  be reduced to  the percentage of  its initial Class  A
Subclass  Principal Balance or initial  Component Principal Balance indicated in
the tables above for each Distribution Date if prepayments on the Mortgage Loans
occur at any  CONSTANT rate between  approximately 135% SPA  (as defined  herein
under  "Prepayment  and  Yield  Considerations")  and  approximately  325%  SPA.
However, IT IS HIGHLY UNLIKELY THAT PRINCIPAL PREPAYMENTS ON THE MORTGAGE  LOANS
WILL  OCCUR AT ANY CONSTANT  RATE OR THAT THE MORTGAGE  LOANS WILL PREPAY AT THE
SAME RATE.  In  addition, even  if  principal prepayments  were  to occur  at  a
constant  rate,  there may  be differences  between  the characteristics  of the
mortgage loans ultimately included  in the Trust Estate  and the Mortgage  Loans
which  are expected to be included, as described herein. Therefore, there can be
no assurance that the Class A Subclass Principal Balance of any Subclass of  PAC
Certificates  or the Component Principal Balance of any PAC Component, after the
application of the distributions  to be made on  any Distribution Date, will  be
equal  to the  applicable percentage of  the initial Class  A Subclass Principal
Balance or  initial  Component  Principal Balance  for  such  Distribution  Date
specified in the tables above.
 
    As  discussed  under  "Prepayment  and  Yield  Considerations"  herein,  the
weighted average life  of a  Subclass of Class  A Certificates  (other than  the
Class  A-3 and Class A-6 Certificates) refers to the average amount of time that
will elapse from  the date of  issuance of  such Subclass until  each dollar  in
reduction of the principal balance of such Subclass is distributed to investors.
The  weighted average  life, of  each Subclass of  Class A  Certificates will be
affected, to  varying degrees,  by  the rate  of principal  payments  (including
prepayments)  of  the Mortgage  Loans, the  timing  of changes  in such  rate of
payment, the priority sequence of distributions in reduction of principal of the
Class A Certificates and the timing  of reductions of the principal balances  of
the PAC Certificates and PAC Components to their planned principal balances. The
interaction  of these  factors may have  different effects on  the Subclasses of
Class A Certificates, including PAC  Certificates and the Subclasses  consisting
of  PAC Components, and the effects on  any Subclass may vary at different times
during the  life of  such Subclass.  Further, to  the extent  that the  purchase
prices  paid  by  investors for  the  Class  A Certificates,  including  the PAC
Certificates  and  the  Subclasses  consisting  of  PAC  Components,   represent
discounts   or  premiums   to  their  respective   initial  principal  balances,
variability in the weighted average lives  of such Certificates could result  in
variability  in  the  related  yields to  maturity.  See  "Prepayment  and Yield
Considerations" herein.
 
    The weighted average  lives of the  Subclasses of PAC  Certificates and  the
Class  A-13 and Class A-14  Certificates to the extent  of their PAC Components,
will vary under  different prepayment  scenarios. To the  extent that  principal
prepayments  are made at a CONSTANT rate  that is slower than approximately 135%
SPA, the Adjusted Principal Distribution Amount on each Distribution Date may be
insufficient to make distributions in reduction of the principal balances of the
PAC Certificates  and the  PAC Components  in amounts  that would  reduce  their
principal  balances  to their  respective  planned principal  balances  for such
Distribution Date.  The weighted  average lives  of the  Subclasses of  the  PAC
Certificates,  and the Class A-13  and Class A-14 Certificates  to the extent of
their PAC Components  may therefore be  extended, as illustrated  by the  tables
beginning  on page S-72. To the extent  that such principal prepayments are made
at a CONSTANT  rate that  is higher than  approximately 325%  SPA, the  weighted
average  lives of  the Subclasses  of PAC Certificates,  and the  Class A-13 and
Class A-14 Certificates to the extent of their PAC Components, may be reduced as
illustrated by the tables beginning on page S-72.
 
    The extent to which the planned principal balances will be achieved and  the
sensitivity  of  the  PAC  Certificates  and  the  PAC  Components  to principal
prepayments on the Mortgage Loans will depend, in part, upon the period of  time
during  which  the  Support  Certificates  and  the  Support  Components  remain
outstanding. On each  Distribution Date,  the excess of  the Adjusted  Principal
Distribution Amount over the PAC Principal Amounts ("Excess Principal Payments")
for such Distribution Date will be distributed first to the Support Certificates
and  the Support Components before being distributed to the PAC Certificates and
the PAC Components,  in accordance  with the  priorities set  forth above  under
"--Allocation  of  Amount  to  be  Distributed  to  the  Class  A  and  Class  M
Certificates." As such, and in
 
                                      S-48
<PAGE>
accordance with such  priorities described above,  the Support Certificates  and
the  Support Components  support the  PAC Certificates  and the  PAC Components.
However, under  certain  relatively  fast  prepayment  scenarios,  one  or  more
Subclasses  of  PAC  Certificates  or  the PAC  Components  may  continue  to be
outstanding when  the Support  Certificates and  the Support  Components are  no
longer  outstanding.  Under such  circumstances,  the entire  Adjusted Principal
Distribution Amount will be  applied to the remaining  PAC Certificates and  the
PAC  Components in accordance  with the priorities  described herein. Thus, when
the principal amounts  of the  Support Certificates and  the Support  Components
have  been  reduced to  zero, any  Subclasses  of PAC  Certificates and  the PAC
Components, if outstanding, will,  in accordance with  the priorities set  forth
above,  become more sensitive to the rate of prepayment on the Mortgage Loans as
such Subclasses  and  the  PAC  Components will  receive  all  Excess  Principal
Payments until the principal amounts of such PAC Certificates and PAC Components
have  been reduced to zero. Conversely, under certain relatively slow prepayment
scenarios, the Adjusted Principal Distribution  Amount may not be sufficient  to
pay the PAC Principal Amounts for all Subclasses of PAC Certificates and the PAC
Components  on a given Distribution Date.  In such cases, the Adjusted Principal
Distribution Amount for  each subsequent  Distribution Date will  be applied  in
accordance   with  the  priorities  described   herein  such  that  the  Support
Certificates and the Support Components  shall not receive any distributions  in
reduction of their principal balances until the outstanding principal balance of
each  such Subclass of PAC  Certificates and the PAC  Components has reached its
planned principal balance for such Distribution Date. As a result, the  weighted
average  life of any Subclass of PAC  Certificates, and the Class A-13 and Class
A-14 Certificates to the  extent of their PAC  Components, that did not  receive
its PAC Principal Amount on a Distribution Date may be extended.
 
    Because  any Excess  Principal Payments  for any  Distribution Date  will be
distributed to  Certificateholders on  such Distribution  Date, the  ability  to
distribute  the  PAC Principal  Amounts  on any  Distribution  Date will  not be
enhanced by the  averaging of  high and low  principal prepayment  rates on  the
Mortgage Loans over several Distribution Dates, as might be the case if any such
Excess  Principal Payments were held for future applications and not distributed
monthly. There is no assurance that (i) distributions in reduction of the  Class
A  Subclass  Principal  Balance  of  any Subclass  of  PAC  Certificates  or the
Component Principal Balance of any PAC Component will not commence significantly
earlier than the first Distribution Date  shown in the above tables relating  to
such  Subclass or Component, (ii) the Class  A Subclass Principal Balance of any
Subclass of  PAC Certificates  or the  Component Principal  Balance of  any  PAC
Component will not commence significantly later than the first Distribution Date
shown  in the above tables  relating to such Subclass  or Component or (iii) the
Class A Subclass Principal  Balance of any Subclass  of PAC Certificates or  the
Component  Principal Balance of  any PAC Component  will not be  reduced to zero
significantly earlier or  significantly later  than the  last Distribution  Date
shown in the above tables relating to such Subclass or Component.
 
ADDITIONAL RIGHTS OF THE CLASS A-R AND CLASS A-LR CERTIFICATEHOLDERS
 
    The  Class A-R  and Class A-LR  Certificates will remain  outstanding for as
long as the Trust Estate shall exist, whether or not they are receiving  current
distributions  of principal or interest. The holders  of the Class A-R and Class
A-LR Certificates will  be entitled  to receive  the proceeds  of the  remaining
assets  of the  Trust Estate,  if any,  on the  final Distribution  Date for the
Series 1993-9 Certificates, after  distributions in respect  of any accrued  but
unpaid  interest on  the Series 1993-9  Certificates and  after distributions in
reduction of principal balance have reduced the principal balances of the Series
1993-9  Certificates  (or,  in  the  case  of  the  Class  A-3  and  Class   A-6
Certificates,  the  Class A-3  Notional Amount  and  Class A-6  Notional Amount,
respectively) to  zero. It  is not  anticipated that  there will  be any  assets
remaining  in  either the  Upper-Tier  REMIC or  Lower-Tier  REMIC on  the final
Distribution Date following the  distributions of interest  and in reduction  of
principal balance made on the Series 1993-9 Certificates on such date.
 
    In  addition,  the Class  A-LR Certificateholder  will  be entitled  on each
Distribution Date to receive  any Pool Distribution  Amount remaining after  all
distributions pursuant to the Pool Distribution Amount Allocation have been made
and  any  Net Foreclosure  Profits after  the Servicer  has been  reimbursed for
 
                                      S-49
<PAGE>
unpaid Servicing  Fees. See  "Servicing of  the Mortgage  Loans--Fixed  Retained
Yield,  Servicing Compensation and Payment of  Expenses" in the Prospectus. "Net
Foreclosure Profits" means, with respect  to any Distribution Date, the  excess,
if  any, of (i) the aggregate profits  on Liquidated Loans in the related period
with respect  to which  net  Liquidation Proceeds  exceed the  unpaid  principal
balance thereof plus accrued interest thereon at the Mortgage Interest Rate over
(ii)  the aggregate  realized losses on  Liquidated Loans in  the related period
with respect  to  which  net  Liquidation Proceeds  are  less  than  the  unpaid
principal balance thereof plus accrued interest thereon at the Mortgage Interest
Rate.  It is not anticipated that there will be any such Net Foreclosure Profits
or such undistributed Pool Distribution Amounts.
 
PERIODIC ADVANCES
 
    If, on any Determination Date, payments of principal and interest due on any
Mortgage Loan in the Trust Estate on the related Due Date have not been received
as of the  close of business  on the business  day preceding such  Determination
Date,  the  Servicer will  be  obligated to  advance  on or  before  the related
Distribution Date for the benefit of  holders of the Series 1993-9  Certificates
an amount in cash equal to all delinquent payments of principal and interest due
on  each  Mortgage Loan  in  the Trust  Estate  (with interest  adjusted  to the
applicable Net Mortgage Interest Rate) not previously advanced, but only to  the
extent  that the Servicer believes  that such amounts will  be recoverable by it
from liquidation proceeds or other recoveries in respect of the related Mortgage
Loan.
 
    The Pooling and Servicing  Agreement provides that any  advance of the  kind
described  in the preceding paragraph  may be reimbursed to  the Servicer at any
time from funds available in the Certificate Account to the extent that (i) such
funds represent receipts on, or  liquidation, insurance, purchase or  repurchase
proceeds  in respect of, the Mortgage Loans to which the advance relates or (ii)
the Servicer has determined in good faith that it will be unable to recover such
advance from funds of the type referred to in clause (i) above.
 
    In the event that, at some future date, Moody's should revise its assessment
of the ability  of the Servicer  to make  Periodic Advances, and  so notify  the
Trustee  in writing  (the date  on which  such notification  is received  by the
Servicer being referred to herein as the "Reserve Fund Trigger Date"), a reserve
fund (the "Reserve Fund") will be established by the Servicer in accordance with
the provisions of the Pooling and Servicing Agreement to provide limited support
for the Servicer's obligation to make Periodic Advances, as described above.  In
the  event that, with respect to any  Distribution Date occurring after the date
on which the Reserve  Fund is funded,  the Servicer fails  to make any  Periodic
Advance  required  to  be made  by  it  pursuant to  the  Pooling  and Servicing
Agreement, the  Trustee will  cause to  be withdrawn  from the  Reserve Fund  an
advance  in an amount equal to the least of (i) the Periodic Advance required to
be made by the Servicer  which the Servicer failed to  make, (ii) the excess  of
(A)  the Class  A Optimal Amount  for such  Distribution Date over  (B) the Pool
Distribution Amount (determined without regard  to any advance from the  Reserve
Fund  on such Distribution Date) and (iii) an amount equal to the amount then in
the Reserve Fund, less any reinvestment income  or gain to be released from  the
Reserve  Fund  as  described  in  the  following  paragraph  (the  "Reserve Fund
Available Advance Amount").  The Pooling  and Servicing  Agreement will  provide
that  any such  advance made  from the  Reserve Fund  will be  reimbursed to the
Reserve Fund if  and to the  extent that such  reimbursement would be  permitted
under  the Pooling and Servicing  Agreement if such advance  had been a Periodic
Advance made by the Servicer.  The Reserve Fund, if  established, will not be  a
part of the Trust Estate.
 
    The  Reserve  Fund, if  required,  will be  established  as a  trust account
pursuant to a depository agreement (the  "Depository Agreement") by and among  a
depository  institution (the  "Reserve Fund  Depository"), the  Servicer and the
Trustee and will be held by  the Reserve Fund Depository. Following the  Reserve
Fund  Trigger Date, should such  date occur, the Reserve  Fund will be funded by
the deposit with the Reserve Fund Depository  of an amount in cash equal to  (i)
0.25% of the outstanding principal balance of the Mortgage Loans as of the close
of  business on  the Reserve  Fund Trigger  Date or  (ii) such  lesser amount as
Moody's may specify (the "Reserve Fund Required Amount"). After the Reserve Fund
Required Amount has been deposited in the Reserve Fund, no person will have  any
further obligation to
 
                                      S-50
<PAGE>
deposit  amounts in the Reserve  Fund or to maintain  the amounts in the Reserve
Fund at that level even if at some future date amounts in the Reserve Fund  fall
below the Reserve Fund Required Amount as a result of unreimbursed advances made
from  the Reserve Fund or  withdrawals permitted by Moody's.  The amounts in the
Reserve Fund may be invested in investments that will not cause the then current
ratings of the Class A Certificates  to be lowered by Moody's, and  reinvestment
income  or  gain will  be released  to the  Servicer (or  its designee)  on each
Distribution Date free  and clear of  any interest of  the Trustee, the  Reserve
Fund  Depository or any  other person. After  the Class A  Principal Balance has
been reduced to zero, any  amounts in the Reserve Fund  will be released to  the
Servicer (or its designee).
 
    An  alternative method of  limited support for  the Servicer's obligation to
make Periodic Advances may be provided, if  such change does not cause the  then
current ratings of the Class A Certificates to be lowered by Moody's.
 
RESTRICTIONS ON TRANSFER OF THE CLASS A-6, CLASS A-R, CLASS A-LR AND CLASS M
CERTIFICATES
 
    Class  A-6  Certificates with  denominations of  less than  $855,000 initial
Class A-6 Notional Amount may only be transferred to persons who deliver to  the
Trustee  an  affidavit  stating  that  such  person:  (a)(i)  is  a substantial,
sophisticated,  institutional  investor  having  knowledge  and  experience   in
financial  and business  matters, and in  particular in such  matters related to
securities similar to  the Class A-6  Certificates, such that  such investor  is
capable  of evaluating the  merits and risks  of an investment  in the Class A-6
Certificates, and (ii) has a net worth of at least $10,000,000; or (b) will hold
the Class A-6 Certificates solely as  nominee for a person meeting the  criteria
set forth in clause (a).
 
    The  Class A-R and Class A-LR Certificates  will be subject to the following
restrictions on transfer, and each of the Class A-R and Class A-LR  Certificates
will contain a legend describing such restrictions.
 
    The  Technical  and  Miscellaneous Revenue  Act  of 1988  amended  the REMIC
provisions of the Code  to impose a  tax on transfers  of residual interests  to
Disqualified  Organizations (as defined  in the Prospectus).  These changes will
apply to transferors  of the  Class A-R  or Class  A-LR Certificate  as well  as
holders  of  the  Class A-R  or  Class  A-LR Certificate  that  are Pass-Through
Entities (as defined  in the  Prospectus). The Pooling  and Servicing  Agreement
will  provide that no  legal or beneficial  interest in either  the Class A-R or
Class A-LR Certificate may be  transferred to or registered  in the name of  any
person unless (i) the proposed purchaser provides to the Trustee an affidavit to
the  effect  that, among  other  items, such  transferee  is not  a Disqualified
Organization, is not purchasing such Class  A-R or Class A-LR Certificate as  an
agent  for a  Disqualified Organization  (I.E., as  a broker,  nominee, or other
middleman thereof) and (ii) the transferor states in writing to the Trustee that
it has no actual knowledge that such affidavit is false. Further, such affidavit
requires the transferee to affirm that it (i) historically has paid its debt  as
they  have come due and intends to do so in the future, (ii) understands that it
may incur  tax  liabilities  with  respect  to  the  Class  A-R  or  Class  A-LR
Certificate  in excess of any cash flows generated thereby, (iii) intends to pay
taxes associated with holding  the Class A-R or  Class A-LR Certificate as  such
taxes  become  due  and (iv)  will  not transfer  the  Class A-R  or  Class A-LR
Certificates to any person or entity that does not provide a similar  affidavit.
The  transferor must certify in  writing to the Trustee that,  as of the date of
the transfer, it had no knowledge or  reason to know that the affirmations  made
by the transferee pursuant to the preceding sentence were false.
 
    In  addition, the Class A-R and Class A-LR Certificates may not be purchased
by or transferred to  any person that  is not a "U.S.  Person," unless (i)  such
person  holds the  Class A-R  or Class A-LR  Certificate in  connection with the
conduct of  a trade  or business  within  the United  States and  furnishes  the
transferor  and the Trustee with an effective Internal Revenue Service Form 4224
or (ii)  the transferee  delivers to  both  the transferor  and the  Trustee  an
opinion  of a nationally recognized tax counsel to the effect that such transfer
is in  accordance  with  the  requirements  of  the  Code  and  the  regulations
promulgated  thereunder and that  such transfer of  the Class A-R  or Class A-LR
Certificate will not be  disregarded for federal income  tax purposes. The  term
"U.S.  Person" means a citizen or resident  of the United States, a corporation,
partnership or other entity  created or organized  in or under  the laws of  the
United  States or any political subdivision thereof,  or an estate or trust that
is subject to U.S. federal income tax regardless of the source of its income.
 
                                      S-51
<PAGE>
    The  Pooling  and Servicing  Agreement will  provide  that any  attempted or
purported transfer in violation of these transfer restrictions will be null  and
void  and will  vest no  rights in any  purported transferee.  Any transferor or
agent to whom the Trustee provides information as to any applicable tax  imposed
on  such transferor or  agent may be required  to bear the  cost of computing or
providing such information. See "Certain Federal Income Tax
Consequences--Federal Income Tax  Consequences for REMIC  Certificates--Taxation
of  Residual Certificates--Tax-Related Restrictions on  Transfer of the Residual
Certificates" in the Prospectus.
 
    Neither the Class  A-R Certificate  nor the  Class A-LR  Certificate may  be
purchased  by or transferred to an ERISA  Plan. Because the Class M Certificates
are subordinated to the Class A  Certificates, the Class M Certificates may  not
be  purchased by or transferred to an ERISA  Plan except upon the delivery of an
opinion of counsel as described herein under "ERISA Considerations." See  "ERISA
Considerations" herein and in the Prospectus.
 
REPORTS
 
    In  addition to the applicable information  specified in the Prospectus, the
Servicer will include in the statement delivered to holders of Class A and Class
M Certificates with respect to each Distribution Date the following information:
(i) the  amount  of such  distribution  allocable  to interest,  the  amount  of
interest  currently distributable on the Class  A Certificates allocated to each
Subclass and  to  the  Class  M Certificates,  any  Class  A  Subclass  Interest
Shortfall  Amount arising with respect to each  Subclass or any Class M Interest
Shortfall Amount  on  such  Distribution  Date, any  remaining  unpaid  Class  A
Subclass  Interest  Shortfall  Amount  with respect  to  each  Subclass,  or any
remaining unpaid Class M Interest Shortfall Amount, after giving effect to  such
distribution and any Non-Supported Interest Shortfall or the interest portion of
Realized  Losses  allocable  to such  Subclass  or  Class with  respect  to such
Distribution Date, (ii) the amount of such distribution allocable to  principal,
(iii)  the Class A Principal Balance, the Class M Principal Balance, the Class A
Subclass Principal Balance of each Subclass of Class A Certificates (and, in the
statement  delivered  to  the  holders  of   the  Class  A-13  and  Class   A-14
Certificates,  the Component Principal Balance with respect to each component of
such Subclass) after  giving effect  to the  distribution of  principal and  the
allocation  of  Excess Special  Hazard Losses,  Excess  Fraud Losses  and Excess
Bankruptcy Losses, if any, (iv) the Adjusted Pool Amount and the Pool  Scheduled
Principal  Balance of  the Mortgage  Loans for  such Distribution  Date, (v) the
Class A Percentage and Class M  Percentage for the following Distribution  Date,
and  (vi) the amount of the remaining Special Hazard Loss Amount, the Fraud Loss
Amount and  the Bankruptcy  Loss Amount  as of  the close  of business  on  such
Distribution  Date. The statement delivered to the  holders of the Class A-3 and
Class A-6 Certificates will  also include the Class  A-3 and Class A-6  Notional
Amounts,  respectively. The statement delivered to the holders of the Class A-5,
Class A-6,  Class  A-15  and  Class A-16  Certificates  will  also  include  the
applicable  Pass-Through  Rates  with  respect to  such  Distribution  Date. The
statement delivered to holders of the Class A-18 Certificates will also  include
the  Class A-18 Notional  Amount and the weighted  average Net Mortgage Interest
Rate of the Mortgage Loans applicable to such Distribution Date minus 7.50%. The
statement delivered  to the  holder  of the  Class  A-LR Certificate  will  also
include  the  Class  A-LR  Notional  Amount.  See  "Servicing  of  the  Mortgage
Loans--Reports to Certificateholders" in the Prospectus.
 
    Copies of the foregoing  reports are available upon  written request to  the
Trustee   at  the  Corporate  Trust  Office.  See  "The  Pooling  and  Servicing
Agreement--Trustee" herein.
 
SUBORDINATION OF CLASS M AND CLASS B CERTIFICATES
 
    The  rights  of  the  holders  of  the  Class  M  Certificates  to   receive
distributions  with respect to  the Mortgage Loans  in the Trust  Estate will be
subordinated to such rights of the holders  of the Class A Certificates and  the
rights  of the holders of the Class B Certificates to receive distributions with
respect to the Mortgage Loans in the  Trust Estate will be subordinated to  such
rights of the holders of the Class A and Class M Certificates, all to the extent
described  below. This  subordination is intended  to enhance  the likelihood of
timely receipt by the holders of the Class A Certificates (to the extent of  the
subordination  of the Class M  and Class B Certificates)  and the holders of the
Class M Certificates (to the extent of the
 
                                      S-52
<PAGE>
subordination of the Class B Certificates) of the full amount of their scheduled
monthly payments of  interest and  principal and to  afford the  holders of  the
Class  A Certificates  (to the extent  of the  subordination of the  Class M and
Class B Certificates) and the holders of the Class M Certificates (to the extent
of the subordination of  the Class B  Certificates) protection against  Realized
Losses,  as more  fully described  below. If  Realized Losses  exceed the credit
support provided through subordination to the  Class A and Class M  Certificates
or  if Excess  Special Hazard Losses,  Excess Fraud Losses  or Excess Bankruptcy
Losses occur, all or a portion of such  losses will be borne by the Class A  and
Class M Certificates.
 
    The  protection afforded to the holders of  Class A Certificates by means of
the subordination feature will be accomplished by the preferential right of such
holders to receive, prior to any distribution being made on a Distribution  Date
in respect of the Class M and Class B Certificates, the amounts of principal and
interest due the Class A Certificateholders on each Distribution Date out of the
Pool  Distribution Amount with  respect to such  date and, if  necessary, by the
right of such holders to receive future distributions on the Mortgage Loans that
would otherwise  have  been payable  to  the holders  of  Class M  and  Class  B
Certificates.  The application  of this  subordination to  cover Realized Losses
experienced in periods  prior to  the periods  in which  a Subclass  of Class  A
Certificates is entitled to distributions in reduction of principal balance will
decrease the protection provided by the subordination to any such Subclass.
 
    The  protection afforded to the holders of  Class M Certificates by means of
the subordination feature will be accomplished by the preferential right of such
holders to receive, prior to any distribution being made on a Distribution  Date
in  respect of the Class  B Certificates, the amounts  of principal and interest
due the  Class M  Certificateholders on  each Distribution  Date from  the  Pool
Distribution  Amount with respect  to such date (after  all required payments on
the Class A Certificates have been made) and, if necessary, by the right of such
holders to  receive  future  distributions  on the  Mortgage  Loans  that  would
otherwise have been payable to the holders of the Class B Certificates.
 
    The Class B Certificates will be entitled, on each Distribution Date, to the
remaining  portion, if  any, of the  applicable Pool  Distribution Amount, after
payment of the Class A  Optimal Amount and the Class  M Optimal Amount for  such
date. Amounts so distributed to Class B Certificateholders will not be available
to  cover delinquencies or Realized Losses in respect of subsequent Distribution
Dates.
 
  ALLOCATION OF LOSSES
 
    Realized Losses  (other  than Excess  Special  Hazard Losses,  Excess  Fraud
Losses  or Excess Bankruptcy Losses) will not be allocated to the holders of the
Class A Certificates until the date on which the amount of principal payments on
the Mortgage Loans  to which the  holders of the  Subordinated Certificates  are
entitled has been reduced to zero as a result of the allocation of losses to the
Subordinated  Certificates, I.E., the date  on which the Subordinated Percentage
has been  reduced to  zero (the  "Cross-Over Date").  Prior to  such time,  such
Realized  Losses will be allocated  first to the Class  B Certificates until the
Class B Principal  Balance has been  reduced to zero,  and then to  the Class  M
Certificates until the Class M Principal Balance has been reduced to zero.
 
    The  allocation of the  principal portion of  a Realized Loss  (other than a
Debt Service Reduction, Excess Special Hazard Loss, Excess Fraud Loss or  Excess
Bankruptcy  Loss)  will  be effected  through  the adjustment  of  the principal
balance of the  most subordinate  Class then-outstanding  in such  amount as  is
necessary to cause the sum of the Class A Subclass Principal Balances, the Class
M Principal Balance and the Class B Principal Balance to equal the Adjusted Pool
Amount.
 
    Allocations  to the Class M Certificates or  Class B Certificates of (i) the
principal portion  of Debt  Service  Reductions, (ii)  the interest  portion  of
Realized  Losses (other than  Excess Special Hazard  Losses, Excess Fraud Losses
and Excess  Bankruptcy Losses),  (iii) any  interest shortfalls  resulting  from
delinquencies  for which  the Servicer  does not  advance and  (iv) any interest
shortfalls resulting from the
 
                                      S-53
<PAGE>
timing of  partial  principal prepayments,  will  result from  the  priority  of
distributions  first to the Class  A Certificateholders and then  to the Class M
Certificateholders of  the Pool  Distribution Amount  as described  above  under
"--Distributions."
 
    The  principal  portion  of any  Realized  Loss  occurring on  or  after the
Cross-Over Date will be  allocated among the outstanding  Subclasses of Class  A
Certificates pro rata in accordance with their then outstanding Class A Subclass
Principal  Balances or,  in the  case of  the Accrual  Certificates, the initial
Class A Subclass Principal  Balance, if lower, and  the interest portion of  any
Realized  Loss occurring on or after the Cross-Over Date will be allocated among
the outstanding Subclasses of Class A  Certificates pro rata in accordance  with
their  Class  A  Subclass Interest  Accrual  Amounts.  Any such  losses  will be
allocated among the outstanding  Class A Certificates  within each Subclass  pro
rata  in  accordance with  their  respective Percentage  Interests.  Losses that
reduce the principal balances of the  Class A-1 and Class A-2 Certificates  will
result  in a  corresponding reduction of  the Class A-3  Notional Amount. Losses
that reduce the principal balance of the Class A-5 Certificates will result in a
corresponding reduction of the Class A-6 Notional Amount.
 
    Any Excess Special Hazard Losses,  Excess Fraud Losses or Excess  Bankruptcy
Losses  will be allocated  on a pro  rata basis among  the Class A,  Class M and
Class B Certificates (any such losses  so allocated to the Class A  Certificates
will  be allocated among the outstanding  Subclasses of Class A Certificates pro
rata in  accordance  with their  then  outstanding Class  A  Subclass  Principal
Balances  or,  in the  case of  the  Accrual Certificates,  the initial  Class A
Subclass Principal Balance, if lower, with  respect to the principal portion  of
such  losses and their Class A Subclass Interest Accrual Amounts with respect to
the interest  portion  of  such  losses,  and  among  the  outstanding  Class  A
Certificates  within each Subclass pro rata  in accordance with their respective
Percentage Interests). Losses that  reduce the principal  balances of the  Class
A-1  and Class A-2 Certificates will result  in a corresponding reduction of the
Class A-3 Notional Amount. Losses that reduce the principal balance of the Class
A-5 Certificates  will result  in a  corresponding reduction  of the  Class  A-6
Notional Amount. An allocation of a loss on a "pro rata basis" among two or more
Classes  of Certificates means  an allocation on  a pro rata  basis to each such
Class of Certificates on the basis of their then outstanding principal  balances
in  the case of the principal portion of a loss or based on the accrued interest
thereon in the case of an interest portion of a loss.
 
    The interest portion of  Excess Special Hazard  Losses, Excess Fraud  Losses
and  Excess Bankruptcy Losses will be allocated by reducing the applicable Class
B Interest Accrual Amount, Class M  Interest Accrual Amount or Class A  Interest
Accrual Amount.
 
    As  described above, the Pool Distribution  Amount for any Distribution Date
will include  current  receipts  (other than  certain  unscheduled  payments  in
respect  of principal) from  the Mortgage Loans otherwise  payable to holders of
the Class M and  Class B Certificates.  If the Pool  Distribution Amount is  not
sufficient  to cover the amount of principal payable to the holders of the Class
A Certificates on a particular Distribution Date (other than any portion thereof
representing the  difference between  the Class  A Percentage  of the  Scheduled
Principal  Balances of Liquidated Loans and the Class A Prepayment Percentage of
such amounts), then the percentage of  principal payments on the Mortgage  Loans
to  which the holders  of the Class  A Certificates will  be entitled (I.E., the
Class  A  Percentage)  on  and  after   the  next  Distribution  Date  will   be
proportionately   increased,  thereby  reducing,  as   a  relative  matter,  the
respective interest of the Class M  and Class B Certificates in future  payments
of  principal on the Mortgage Loans in  the Trust Estate. Such a shortfall could
occur, for example, if  a considerable number of  Mortgage Loans were to  become
Liquidated Loans in a particular month.
 
    Special  Hazard Losses will be allocated solely to the Class B Certificates,
or following the reduction of the Class  B Principal Balance to zero, solely  to
the Class M Certificates, but only prior to the Special Hazard Termination Date.
The  "Special Hazard Termination Date" will be  the date on which Special Hazard
Losses exceed the  Special Hazard Loss  Amount (or, if  earlier, the  Cross-Over
Date).  Upon initial  issuance of the  Series 1993-9  Certificates, the "Special
Hazard Loss Amount" with  respect thereto will be  equal to approximately  1.42%
(approximately   $5,705,356)   of   the   Cut-Off   Date   Aggregate   Principal
 
                                      S-54
<PAGE>
Balance of the Mortgage Loans. As  of any Distribution Date, the Special  Hazard
Loss  Amount will equal the  initial Special Hazard Loss  Amount less the sum of
(A) any  Special Hazard  Losses  allocated solely  to the  Class  B or  Class  M
Certificates  and (B)  the Adjustment  Amount. The  "Adjustment Amount"  on each
anniversary of the Cut-Off Date  will be equal to the  amount, if any, by  which
the  Special  Hazard  Amount, without  giving  effect  to the  deduction  of the
Adjustment Amount for such anniversary, exceeds the greater of (i) 1.00% (or, if
greater than  1.00%,  the highest  percentage  of Mortgage  Loans  by  principal
balance in any California zip code) times the aggregate principal balance of all
the  Mortgage Loans on such anniversary and  (ii) twice the principal balance of
the single Mortgage Loan  having the largest  principal balance. Special  Hazard
Losses  in excess of the  Special Hazard Loss Amount  are "Excess Special Hazard
Losses".
 
    Fraud Losses  will be  allocated  solely to  the  Class B  Certificates,  or
following  the reduction of the Class B Principal Balance to zero, solely to the
Class M Certificates, but only prior to the Fraud Coverage Termination Date. The
"Fraud Coverage Termination Date" will be the date on which Fraud Losses  exceed
the  Fraud  Loss Amount  (or,  if earlier,  the  Cross-Over Date).  Upon initial
issuance of the Series 1993-9 Certificates, the "Fraud Loss Amount" with respect
thereto will be equal to  approximately 2.00% (approximately $8,056,888) of  the
Cut-Off  Date  Aggregate Principal  Balance  of the  Mortgage  Loans. As  of any
Distribution Date prior to the first anniversary of the Cut-Off Date, the  Fraud
Loss  Amount will equal the initial Fraud Loss Amount minus the aggregate amount
of Fraud Losses allocated solely to the  Class B or the Class M Certificates  up
to  the related Determination Date.  As of any Distribution  Date from the first
through fifth anniversary of the Cut-Off Date, an amount equal to (1) the lesser
of (a) the Fraud Loss  Amount as of the most  recent anniversary of the  Cut-Off
Date  and (b) 1.00%  of the aggregate  principal balance of  all of the Mortgage
Loans as  of the  most recent  anniversary of  the Cut-Off  Date minus  (2)  the
aggregate  amounts allocated solely to  the Class B or  the Class M Certificates
with respect to Fraud  Losses since the most  recent anniversary of the  Cut-Off
Date  up to the related  Determination Date. After the  fifth anniversary of the
Cut-Off Date, the Fraud Loss Amount will be zero and thereafter any Fraud Losses
will be shared pro  rata among the  Class A, Class M  and Class B  Certificates.
Fraud Losses in excess of the Fraud Loss Amount are "Excess Fraud Losses."
 
    Bankruptcy  Losses will be allocated solely  to the Class B Certificates, or
following the reduction of the Class B Principal Balance to zero, solely to  the
Class  M Certificates,  but only  prior to  the Bankruptcy  Coverage Termination
Date. The  "Bankruptcy Coverage  Termination Date"  will be  the date  on  which
Bankruptcy  Losses  exceed  the  Bankruptcy Loss  Amount  (or,  if  earlier, the
Cross-Over Date). Upon initial issuance  of the Series 1993-9 Certificates,  the
"Bankruptcy  Loss Amount"  with respect thereto  will be  equal to approximately
0.17% (approximately $689,136) of the  Cut-Off Date Aggregate Principal  Balance
of  the  Mortgage  Loans.  As  of  any  Distribution  Date  prior  to  the first
anniversary of  the Cut-Off  Date, the  Bankruptcy Loss  Amount will  equal  the
initial  Bankruptcy Loss Amount minus the  aggregate amount of Bankruptcy Losses
allocated solely to  the Class  B and  Class M  Certificates up  to the  related
Determination  Date.  As  of  any  Distribution  Date  on  or  after  the  first
anniversary of  the Cut-Off  Date, the  Bankruptcy Loss  Amount will  equal  the
excess,  if any, of (1) the  lesser of (a) the Bankruptcy  Loss Amount as of the
business day next preceding the most recent anniversary of the Cut-Off Date  and
(b)  an amount  calculated pursuant  to the terms  of the  Pooling and Servicing
Agreement, which  amount as  calculated  will provide  for  a reduction  in  the
Bankruptcy  Loss  Amount, over  (2) the  aggregate  amount of  Bankruptcy Losses
allocated solely to the Class B Certificates or Class M Certificates since  such
anniversary.  The  Bankruptcy  Loss  Amount  and  the  related  coverage  levels
described above  may  be reduced  or  modified upon  written  confirmation  from
Moody's  and Fitch that such reduction or modification will not adversely affect
the then-current ratings  assigned to the  Class A and  Class M Certificates  by
Moody's  and Fitch.  Such a reduction  or modification may  adversely affect the
coverage provided by subordination with respect to Bankruptcy Losses. Bankruptcy
Losses in excess of the Bankruptcy Loss Amount are "Excess Bankruptcy Losses."
 
    Notwithstanding the foregoing, the provisions relating to subordination will
not be applicable in connection with a  Bankruptcy Loss so long as the  Servicer
has notified the Trustee in writing that the Servicer is diligently pursuing any
remedies   that   may  exist   in  connection   with  the   representations  and
 
                                      S-55
<PAGE>
warranties made regarding  the related Mortgage  Loan and when  (A) the  related
Mortgage  Loan is not in  default with regard to  the payments due thereunder or
(B) delinquent payments  of principal  and interest under  the related  Mortgage
Loan and any premiums on any applicable Standard Hazard Insurance Policy and any
related escrow payments in respect of such Mortgage Loan are being advanced on a
current  basis by the Servicer, in either case without giving effect to any Debt
Service Reduction.
 
    Since the  initial principal  balance of  the Class  B Certificates  in  the
aggregate  will be approximately $14,100,415, the risk of Special Hazard Losses,
Fraud Losses  and Bankruptcy  Losses will  separately be  borne by  the Class  B
Certificates  to  a lesser  extent (I.E.,  only  up to  the Special  Hazard Loss
Amount, Fraud Loss  Amount and  Bankruptcy Loss Amount,  respectively) than  the
risk  of other Realized Losses, which they will bear to the full extent of their
initial principal balance. See "The Trust Estates--Mortgage
Loans--Representations and  Warranties"  and  "--Insurance  Policies,"  "Certain
Legal   Aspects  of   the  Mortgage   Loans--Environmental  Considerations"  and
"Servicing  of   the  Mortgage   Loans--Enforcement  of   Due-on-Sale   Clauses;
Realization Upon Defaulted Mortgage Loans" in the Prospectus.
 
                      DESCRIPTION OF THE MORTGAGE LOANS(1)
 
    The Mortgage Loans to be included in the Trust Estate will be fixed interest
rate,   conventional,  monthly  pay,  fully  amortizing,  one-  to  four-family,
residential first mortgage  loans originated  or acquired  by PHMC  for its  own
account  or for  the account  of an  affiliate having  original terms  to stated
maturity of approximately 15  years, which may include  loans secured by  shares
("Co-op   Shares")   issued   by   private   non-profit   housing   corporations
("Cooperatives") and  the related  proprietary  leases or  occupancy  agreements
granting  exclusive  rights  to  occupy specified  units  in  such Cooperatives'
buildings. As  of the  Cut-Off Date,  there are  not expected  to be  any  loans
secured  by Co-op Shares in the Trust Estate. The Mortgage Loans are expected to
include 1,510 promissory notes, to have an aggregate unpaid principal balance as
of the  Cut-Off  Date  (the  "Cut-Off  Date  Aggregate  Principal  Balance")  of
approximately  $402,844,415, to be  secured by first  liens (the "Mortgages") on
one- to  four-family  residential properties  or  Co-op Shares  (the  "Mortgaged
Properties")  and to have the additional  characteristics described below and in
the Prospectus.
 
    No Mortgage Loan is a Buy-Down Loan. See "The Trust Estates--Mortgage Loans"
in the Prospectus.
 
    Each of the Mortgage Loans is subject to a due-on-sale clause. See  "Certain
Legal  Aspects of the  Mortgage Loans--'Due-on-Sale' Clauses"  and "Servicing of
the  Mortgage  Loans--Enforcement  of  Due-on-Sale  Clauses;  Realization   Upon
Defaulted Mortgage Loans" in the Prospectus.
 
- ------------------------
(1) The  descriptions in this Prospectus Supplement  of the Trust Estate and the
    properties securing the Mortgage  Loans to be included  in the Trust  Estate
    are  based upon  the expected characteristics  of the Mortgage  Loans at the
    close of  business  on the  Cut-Off  Date,  as adjusted  for  the  scheduled
    principal   payments  due  on  or  before  such  date.  Notwithstanding  the
    foregoing, any of such Mortgage Loans may be excluded from the Trust  Estate
    (i)  as a result  of principal prepayment thereof  in full or  (ii) if, as a
    result of  delinquencies  or  otherwise, the  Seller  otherwise  deems  such
    exclusion  necessary or desirable. In either event, other Mortgage Loans may
    be included in the  Trust Estate. The Seller  believes that the  information
    set  forth  herein  with  respect to  the  expected  characteristics  of the
    Mortgage Loans on the Cut-Off Date is representative of the  characteristics
    as  of the Cut-Off  Date of the Mortgage  Loans to be  included in the Trust
    Estate as it will be constituted at the time the Series 1993-9  Certificates
    are issued, although the Cut-Off Date Aggregate Principal Balance, the range
    of Mortgage Interest Rates and maturities, and certain other characteristics
    of the Mortgage Loans in the Trust Estate may vary. In the event that any of
    the  characteristics  as of  the  Cut-Off Date  of  the Mortgage  Loans that
    constitute the Trust Estate  on the date of  initial issuance of the  Series
    1993-9  Certificates vary  materially from  those described  herein, revised
    information  regarding  the  Mortgage  Loans  will  be  made  available   to
    purchasers of the Class A Certificates, on or before such issuance date, and
    a  Current Report on Form 8-K containing such information will be filed with
    the Securities and Exchange Commission within 15 days following such date.
 
                                      S-56
<PAGE>
    As of the Cut-Off  Date, each Mortgage  Loan is expected  to have an  unpaid
principal  balance  of not  less than  $25,927  or more  than $994,453,  and the
average unpaid  principal  balance of  the  Mortgage  Loans is  expected  to  be
approximately  $266,784. The latest stated maturity  date of any of the Mortgage
Loans is expected to be February 1, 2008; however, the actual date on which  any
Mortgage  Loan is paid in full may be  earlier than the stated maturity date due
to unscheduled  payments of  principal.  Based on  information supplied  by  the
mortgagors  in connection with their loan  applications at origination, 1,425 of
the Mortgaged Properties, which secure approximately 95.00% of the Cut-Off  Date
Aggregate  Principal Balance  of the  Mortgage Loans,  are expected  to be owner
occupied primary residences  and 85  of the Mortgaged  Properties, which  secure
approximately  5.00%  of the  Cut-Off Date  Aggregate  Principal Balance  of the
Mortgage Loans,  are expected  to be  non-owner occupied  or second  homes.  See
"PHMC--Mortgage Loan Underwriting" in the Prospectus.
 
    It   is  expected  that  approximately   thirteen  of  the  Mortgage  Loans,
representing approximately 0.85% of the Cut-Off Date Aggregate Principal Balance
of the Mortgage Loans, will be Mortgage Loans originated in connection with  the
relocation  of employees of various  corporate employers participating in PHMC's
relocation  program  and  of  employees  of  various  non-participant  employers
("Relocation Mortgage Loans").
 
    It  is expected that  two of the  Mortgage Loans, representing approximately
0.12% of the  Cut-Off Date Aggregate  Principal Balance of  the Mortgage  Loans,
will   be  Subsidy  Loans.   See  "The  Trust   Estates--  Mortgage  Loans"  and
"PHMC--Mortgage Loan Underwriting" in the Prospectus.
 
    Set  forth  below   is  a   description  of   certain  additional   expected
characteristics  of  the  Mortgage  Loans  as of  the  Cut-Off  Date  (except as
otherwise indicated).
 
                            MORTGAGE INTEREST RATES
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
MORTGAGE INTEREST RATES                                     LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
7.750%.................................................         140   $     41,375,012.06       10.27 %
7.875%.................................................         160         45,579,306.57       11.31
7.900%.................................................           1             58,627.03        0.01
8.000%.................................................         160         43,042,551.22       10.68
8.125%.................................................         127         33,703,111.33        8.37
8.250%.................................................         275         71,424,110.03       17.74
8.375%.................................................         252         67,322,638.98       16.71
8.500%.................................................         202         55,169,412.71       13.69
8.625%.................................................         114         27,373,019.85        6.79
8.750%.................................................          51         11,288,661.48        2.80
8.875%.................................................          13          3,778,066.63        0.94
9.000%.................................................           4            839,862.00        0.21
9.125%.................................................           4            564,908.73        0.14
9.250%.................................................           1            141,654.49        0.04
9.375%.................................................           1             39,897.82        0.01
9.500%.................................................           1            187,312.26        0.05
9.750%.................................................           1            286,557.41        0.07
9.875%.................................................           3            669,703.97        0.17
                                                              -----   -------------------  -------
        Total..........................................       1,510   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
As of  the Cut-Off  Date, the  weighted average  Mortgage Interest  Rate of  the
Mortgage  Loans  is  expected to  be  approximately  8.227% per  annum.  The Net
Mortgage Interest  Rate of  each Mortgage  Loan will  be equal  to the  Mortgage
Interest  Rate of such Mortgage  Loan minus the Servicing  Fee rate of 0.20% per
annum. As of the Cut-Off Date,  the weighted average Net Mortgage Interest  Rate
of the Mortgage Loans is expected to be approximately 8.027% per annum.
 
                                      S-57
<PAGE>
                      REMAINING MONTHS TO STATED MATURITY
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
REMAINING STATED TERM (MONTHS)                              LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
157....................................................           1   $        187,312.26        0.05 %
160....................................................           1            141,654.49        0.04
161....................................................           1            228,006.95        0.06
162....................................................           2            441,697.02        0.11
163....................................................           1            286,557.41        0.07
168....................................................           1            338,181.66        0.08
170....................................................           6          1,198,793.62        0.30
171....................................................           2            844,122.54        0.21
172....................................................           6          1,059,240.26        0.26
173....................................................           6            888,558.87        0.22
174....................................................          11          2,126,221.99        0.53
175....................................................          18          5,124,430.97        1.27
176....................................................          48         13,437,087.25        3.34
177....................................................         112         32,875,741.05        8.16
178....................................................         429        116,752,597.89       28.98
179....................................................         659        173,946,636.44       43.17
180....................................................         206         52,967,573.90       13.15
                                                              -----   -------------------  -------
        Total..........................................       1,510   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
As  of the Cut-Off Date, the weighted  average remaining term to stated maturity
of the Mortgage Loans is expected to be approximately 178 months.
 
                              YEARS OF ORIGINATION
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
YEAR OF ORIGINATION                                         LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
1991...................................................           7   $      1,565,771.50        0.39 %
1992...................................................       1,348        362,015,219.17       89.86
1993...................................................         155         39,263,423.90        9.75
                                                              -----   -------------------  -------
        Total..........................................       1,510   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
The earliest month and year of origination  of any Mortgage Loan is expected  to
be  February 1991 and the latest month and year of origination is expected to be
January 1993.
 
                                      S-58
<PAGE>
                         ORIGINAL LOAN-TO-VALUE RATIOS
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
LOAN-TO-VALUE RATIO                                         LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
50.00% or less.........................................         258   $     61,280,088.17       15.21 %
50.01%-55.00%..........................................          71         20,324,186.30        5.05
55.01%-60.00%..........................................         102         28,584,172.31        7.10
60.01%-65.00%..........................................         117         32,128,764.52        7.98
65.01%-70.00%..........................................         182         58,367,015.81       14.49
70.01%-75.00%..........................................         345         89,330,188.55       22.17
75.01%-80.00%..........................................         373         97,074,572.01       24.09
80.01%-85.00%..........................................          10          2,576,940.65        0.64
85.01%-90.00%..........................................          52         13,178,486.25        3.27
                                                              -----   -------------------  -------
        Total..........................................  1,510.....   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
As of  the  Cut-Off  Date,  the minimum  and  maximum  Loan-to-Value  Ratios  at
origination  of  the  Mortgage  Loans  are expected  to  be  11.43%  and 90.00%,
respectively, and the weighted average Loan-to-Value Ratio at origination of the
Mortgage Loans is expected to be approximately 66%. The Loan-to-Value Ratio of a
Mortgage Loan is calculated using the lesser  of (i) the appraised value of  the
related  Mortgaged  Property, as  established by  an  appraisal obtained  by the
originator from an appraiser at the time of origination and (ii) the sale  price
for such property. For the purpose of calculating the Loan-to-Value Ratio of any
Mortgage Loan that is the result of the refinancing (including a refinancing for
"equity take out" purposes) of an existing mortgage loan, the appraised value of
the  related  Mortgaged  Property is  generally  determined by  reference  to an
appraisal obtained in connection with  the origination of the replacement  loan.
See  "The Trust Estates--Mortgage Loans" in  the Prospectus. It is expected that
eighteen of the  Mortgage Loans  having Loan-to-Value Ratios  at origination  in
excess  of 80%, representing  approximately 1.13% of  the Cut-Off Date Aggregate
Principal Balance  of  the  Mortgage  Loans,  were  originated  without  primary
mortgage insurance. See "PHMC--Mortgage Loan Underwriting" in the Prospectus.
 
                       MORTGAGE LOAN DOCUMENTATION LEVELS
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
DOCUMENTATION LEVELS                                        LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
Full Documentation.....................................         790   $    257,978,249.37       64.04 %
Asset and Income Verification..........................           1            338,181.66        0.08
Asset and Mortgage Verification........................         458         95,297,357.29       23.66
Income and Mortgage Verification.......................          22          6,811,052.20        1.69
Asset Verification.....................................         106         15,580,320.62        3.87
Income Verification....................................           0                  0.00        0.00
Mortgage Verification..................................          76         17,652,873.89        4.38
Preferred Processing...................................          57          9,186,379.54        2.28
                                                              -----   -------------------  -------
        Total                                            1,510.....   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
Documentation levels vary depending upon several factors, including loan amount,
Loan-to-Value Ratio and the type and purpose of the Mortgage Loan. Asset, income
and mortgage verifications were obtained for Mortgage Loans processed with "full
documentation." In the case of "preferred processing," neither asset, income nor
mortgage  verifications were obtained.  However, for all  of the Mortgage Loans,
verification of the borrower's employment, a credit report on the borrower and a
property appraisal were obtained. See "PHMC--Mortgage Loan Underwriting" in  the
Prospectus.
 
                                      S-59
<PAGE>
                   ORIGINAL MORTGAGE LOAN PRINCIPAL BALANCES
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                       ORIGINAL                           NUMBER OF         UNPAID           AGGREGATE
                     MORTGAGE LOAN                        MORTGAGE         PRINCIPAL         PRINCIPAL
                   PRINCIPAL BALANCE                        LOANS           BALANCE           BALANCE
                 --------------------                    -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
Less than or equal to $200,000.........................         410   $     46,844,242.66       11.63 %
$200,001-$250,000......................................         317         73,376,361.11       18.21
$250,001-$300,000......................................         332         91,444,498.51       22.70
$300,001-$350,000......................................         163         53,112,373.45       13.18
$350,001-$400,000......................................         104         39,279,356.66        9.75
$400,001-$450,000......................................          48         20,473,746.01        5.08
$450,001-$500,000......................................          64         30,893,015.47        7.67
$500,001-$550,000......................................          21         11,053,929.77        2.74
$550,001-$600,000......................................          21         12,247,314.95        3.04
$600,001-$650,000......................................           3          1,914,143.33        0.48
$650,001-$700,000......................................           4          2,703,039.45        0.67
$700,001-$750,000......................................           4          2,921,941.32        0.73
$750,001-$800,000......................................           4          3,064,649.26        0.76
$800,001-$850,000......................................           5          4,089,769.21        1.02
$850,001-$900,000......................................           3          2,591,055.07        0.64
$950,001-$1,000,000....................................           7          6,834,978.34        1.70
                                                              -----   -------------------  -------
        Total..........................................  1,510.....   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
As  of the Cut-Off  Date, the average  unpaid principal balance  of the Mortgage
Loans is expected  to be  approximately $266,784. As  of the  Cut-Off Date,  the
weighted   average   Loan-to-Value  Ratio   at   origination  and   the  maximum
Loan-to-Value Ratio  at origination  of the  Mortgage Loans  which had  original
principal balances in excess of $600,000 are expected to be approximately 62.71%
and   70.00%,  respectively.   See  "The  Trust   Estates--Mortgage  Loans"  and
"PHMC--Mortgage Loan Underwriting" in the Prospectus.
 
                              MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                                           PERCENTAGE OF
                                                                           AGGREGATE        CUT-OFF DATE
                                                          NUMBER OF         UNPAID           AGGREGATE
                                                          MORTGAGE         PRINCIPAL         PRINCIPAL
PROPERTY                                                    LOANS           BALANCE           BALANCE
- -------------------------------------------------------  -----------  -------------------  --------------
<S>                                                      <C>          <C>                  <C>
Single-family Detached.................................       1,441   $    389,832,395.92       96.77 %
Two- to four-family units..............................           4          1,348,701.73        0.33
Condominiums
  High-rise (four stories or more).....................          31          6,589,452.86        1.64
  Low-rise (less than four stories)....................          32          4,656,017.18        1.16
Planned Unit Development...............................           1             96,461.87        0.02
Townhouses.............................................           1            321,385.01        0.08
Cooperative units......................................           0                  0.00        0.00
                                                              -----   -------------------  -------
        Total..........................................  1,510.....   $    402,844,414.57      100.00 %
                                                              -----   -------------------  -------
                                                              -----   -------------------  -------
</TABLE>
 
                                      S-60
<PAGE>
                GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                                    AGGREGATE        CUT-OFF DATE
                                                                   NUMBER OF         UNPAID           AGGREGATE
                                                                   MORTGAGE         PRINCIPAL         PRINCIPAL
STATE                                                                LOANS           BALANCE           BALANCE
- ----------------------------------------------------------------  -----------  -------------------  --------------
<S>                                                               <C>          <C>                  <C>
Alabama.........................................................           4   $        558,218.05        0.14 %
Arizona.........................................................          11          3,185,452.15        0.79
Arkansas........................................................           2            470,636.24        0.12
California......................................................         684        214,454,257.49       53.25
Colorado........................................................          19          4,184,546.71        1.04
Connecticut.....................................................          26          5,563,476.40        1.38
Delaware........................................................           1            182,558.57        0.05
District of Columbia............................................           7          2,950,654.33        0.73
Florida.........................................................          92         17,122,555.37        4.25
Georgia.........................................................          14          3,140,621.35        0.78
Hawaii..........................................................           2            652,538.26        0.16
Idaho...........................................................           2            587,068.28        0.15
Illinois........................................................          22          4,133,297.86        1.03
Indiana.........................................................           3          1,346,969.55        0.33
Iowa............................................................           1            215,000.00        0.05
Kansas..........................................................           3            867,815.43        0.22
Louisiana.......................................................           7          1,739,694.95        0.43
Maryland........................................................          42         11,886,511.50        2.95
Massachusetts...................................................          38          9,187,794.51        2.28
Michigan........................................................           8          2,432,671.88        0.60
Minnesota.......................................................           4          1,131,536.51        0.28
Mississippi.....................................................           1            175,000.00        0.04
Missouri........................................................           5          1,453,627.36        0.36
Nevada..........................................................           9          2,707,925.32        0.67
New Hampshire...................................................           5          1,056,996.94        0.26
New Jersey......................................................         107         22,706,544.07        5.64
New Mexico......................................................           5            998,277.18        0.25
New York........................................................         184         41,451,912.10       10.29
North Carolina..................................................           4            818,064.11        0.20
Ohio............................................................          16          4,645,294.26        1.15
Oklahoma........................................................           3            656,383.04        0.16
Oregon..........................................................           7          1,378,873.52        0.34
Pennsylvania....................................................          38          7,330,410.66        1.82
Rhode Island....................................................           5            769,679.22        0.19
South Carolina..................................................           4            810,739.93        0.20
Tennessee.......................................................           3            674,096.26        0.17
Texas...........................................................          66         14,599,432.22        3.62
Utah............................................................           7          1,506,964.11        0.37
Vermont.........................................................           6            977,239.85        0.24
Virginia........................................................          34          9,366,727.04        2.33
Washington......................................................           9          2,766,351.99        0.69
                                                                       -----   -------------------  -------
        Total...................................................       1,510   $    402,844,414.57      100.00 %
                                                                       -----   -------------------  -------
                                                                       -----   -------------------  -------
</TABLE>
 
No more than approximately 1.42% of the Cut-Off Date Aggregate Principal Balance
of  the Mortgage Loans is expected to be secured by Mortgaged Properties located
in any one zip code.
 
                                      S-61
<PAGE>
                         ORIGINATORS OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                                    AGGREGATE        CUT-OFF DATE
                                                                   NUMBER OF         UNPAID           AGGREGATE
                                                                   MORTGAGE         PRINCIPAL         PRINCIPAL
ORIGINATOR                                                           LOANS           BALANCE           BALANCE
- ----------------------------------------------------------------  -----------  -------------------  --------------
<S>                                                               <C>          <C>                  <C>
PHMC or Affiliate...............................................         352   $     85,470,099.38       21.22 %
Other Originators...............................................       1,158        317,374,315.19       78.78
                                                                       -----   -------------------  -------
        Total...................................................       1,510   $    402,844,414.57      100.00 %
                                                                       -----   -------------------  -------
                                                                       -----   -------------------  -------
</TABLE>
 
It is expected that, as of the Cut-Off Date, one of the "Other Originators" will
have accounted for approximately 10.51% of the Cut-Off Date Aggregate  Principal
Balance of the Mortgage Loans. No other single "Other Originator" is expected to
have  accounted  for more  than 5.00%  of the  Cut-Off Date  Aggregate Principal
Balance of the Mortgage Loans.  See "PHMC--Mortgage Loan Production Sources"  in
the Prospectus.
 
                           PURPOSES OF MORTGAGE LOANS
 
<TABLE>
<CAPTION>
                                                                                                    PERCENTAGE OF
                                                                                    AGGREGATE        CUT-OFF DATE
                                                                   NUMBER OF         UNPAID           AGGREGATE
                                                                   MORTGAGE         PRINCIPAL         PRINCIPAL
LOAN PURPOSE                                                         LOANS           BALANCE           BALANCE
- ----------------------------------------------------------------  -----------  -------------------  --------------
<S>                                                               <C>          <C>                  <C>
Purchase........................................................         229   $     53,960,363.89       13.39 %
Rate/Term Refinance.............................................         976        264,947,087.97       65.77
Equity Take Out Refinance.......................................         305         83,936,962.71       20.84
                                                                       -----   -------------------  -------
        Total...................................................       1,510   $    402,844,414.57      100.00 %
                                                                       -----   -------------------  -------
                                                                       -----   -------------------  -------
</TABLE>
 
In  general,  in the  case of  a  Mortgage Loan  made for  "rate/term" refinance
purposes, substantially  all  of  the proceeds  are  used  to pay  in  full  the
principal balance of a previous mortgage loan of the mortgagor with respect to a
Mortgaged Property and to pay origination and closing costs associated with such
refinancing.  However, in the case of a Mortgage Loan made for "equity take out"
refinance purposes, all or a portion  of the proceeds are generally retained  by
the  mortgagor for uses unrelated to the  Mortgaged Property. The amount of such
proceeds  retained  by  the  mortgagor  may  be  substantial.  See  "The   Trust
Estates--Mortgage   Loans"  and   "PHMC--Mortgage  Loan   Underwriting"  in  the
Prospectus.
 
MANDATORY REPURCHASE OR SUBSTITUTION OF MORTGAGE LOANS
 
    The Seller is required, with respect to Mortgage Loans that are found by the
Trustee to have defective documentation, or  in respect of which the Seller  has
breached  a representation or warranty, either to repurchase such Mortgage Loans
or, if within two  years of the  date of initial issuance  of the Series  1993-9
Certificates,  to substitute new  Mortgage Loans therefor.  Any Mortgage Loan so
substituted must, among other things, have an unpaid principal balance equal  to
or  less than the Scheduled Principal Balance  of the Mortgage Loan for which it
is being substituted (after giving effect to the scheduled principal payment due
in the month of substitution on the Mortgage Loan for which a new Mortgage  Loan
is  being  substituted), a  Loan-to-Value Ratio  less  than or  equal to,  and a
Mortgage Interest Rate  no less than,  and no  more than one  percent per  annum
greater  than, that of the Mortgage Loan  for which it is being substituted. See
"Prepayment and Yield  Considerations" herein and  "The Trust  Estates--Mortgage
Loans--Assignment of Mortgage Loans to the Trustee" in the Prospectus.
 
OPTIONAL REPURCHASE OF DEFAULTED MORTGAGE LOANS
 
    The  Seller may, in  its sole discretion,  repurchase any defaulted Mortgage
Loan from the Trust Estate at a  price equal to the unpaid principal balance  of
such  Mortgage  Loan, together  with accrued  interest  at a  rate equal  to the
Mortgage Interest  Rate  through  the  last  day of  the  month  in  which  such
repurchase occurs. See "The Trust Estates--Mortgage Loans--Optional Repurchases"
in  the  Prospectus.  The  Servicer  may,  in  its  sole  discretion,  allow the
assumption of a defaulted Mortgage Loan by a borrower
 
                                      S-62
<PAGE>
meeting PHMC's  underwriting  guidelines  or  encourage  the  refinancing  of  a
defaulted  Mortgage Loan. See  "Prepayment and Yield  Considerations" herein and
"Servicing  of   the  Mortgage   Loans--Enforcement  of   Due-on-Sale   Clauses;
Realization Upon Defaulted Mortgage Loans" in the Prospectus.
 
              ORIGINATION, DELINQUENCY AND FORECLOSURE EXPERIENCE
 
LOAN ORIGINATION
 
    During the years ended December 31, 1990, December 31, 1991 and December 31,
1992, PHMC originated or purchased, for its own account or for the account of an
affiliate,  conventional mortgage  loans having aggregate  principal balances of
approximately $5,837,566,957, $9,742,858,764 and $24,516,257,276, respectively.
 
DELINQUENCY AND FORECLOSURE EXPERIENCE
 
    The  following  tables  set  forth  certain  information  concerning  recent
delinquency,  foreclosure and loan loss  experience on the conventional mortgage
loans included in PHMC's mortgage loan servicing portfolio which were originated
by PHMC for its own  account or for the account  of an affiliate or acquired  by
PHMC  for its own account or for the account of an affiliate and underwritten to
PHMC's underwriting standards (the "Program Loans"), on the Program Loans  which
are  fixed interest rate  mortgage loans ("Fixed  Program Loans"), including, in
both cases, Relocation  Mortgage Loans, and  on the Fixed  Program Loans,  other
than  Relocation Mortgage Loans, having original  terms to stated maturity of 15
years ("Fixed 15-Year  Non-relocation Program Loans").  See "Description of  the
Mortgage   Loans"   herein   and  "The   Trust   Estates--Mortgage   Loans"  and
"PHMC--General,"  "--Mortgage  Loan  Underwriting"  and  "--Servicing"  in   the
Prospectus. The delinquency, foreclosure and loan loss experience represents the
recent  experience of PHMC and The Prudential Mortgage Capital Company, Inc., an
affiliate of PHMC which serviced the Program Loans prior to June 30, 1989. There
can be no assurance that the  delinquency, foreclosure and loan loss  experience
set  forth with  respect to PHMC's  total servicing portfolio  of Program Loans,
which includes both fixed and adjustable interest rate mortgage loans and  loans
having  a  variety of  original terms  to  stated maturity  including Relocation
Mortgage  Loans  and  non-relocation   mortgage  loans,  and  PHMC's   servicing
portfolios of Fixed Program Loans or Fixed 15-Year Non-relocation Program Loans,
each  of which includes loans having  a variety of payment characteristics, such
as Subsidy Loans, Buy-Down  Loans and Balloon Loans,  will be representative  of
the  results that may be experienced with respect to the Mortgage Loans included
in the Trust Estate.
 
    Historically, Relocation  Mortgage  Loans, which  constitute  a  significant
percentage  of the Mortgage Loans currently serviced by PHMC, have experienced a
significantly lower  rate of  delinquency and  foreclosure than  other  mortgage
loans included in the portfolios of total Program Loans and Fixed Program Loans.
There  can be  no assurance  that the  future experience  on the  Mortgage Loans
contained in the  Trust Estate, all  of which are  fixed interest rate  mortgage
loans  having original  terms to stated  maturity of 15  years and approximately
0.85% (by percentage of Cut-off Date  Aggregate Principal Balance) of which  are
Relocation  Mortgage  Loans, will  be comparable  to that  of the  total Program
Loans, the  Fixed Program  Loans  or the  Fixed 15-Year  Non-relocation  Program
Loans.
 
                                      S-63
<PAGE>
                              TOTAL PROGRAM LOANS
 
<TABLE>
<CAPTION>
                                            AS OF                       AS OF                      AS OF
                                      DECEMBER 31, 1990           DECEMBER 31, 1991          DECEMBER 31, 1992
                                 ---------------------------  -------------------------  -------------------------
                                                BY DOLLAR                  BY DOLLAR                  BY DOLLAR
                                   BY NO.         AMOUNT       BY NO.        AMOUNT       BY NO.        AMOUNT
                                  OF LOANS       OF LOANS     OF LOANS      OF LOANS     OF LOANS      OF LOANS
                                 -----------  --------------  ---------  --------------  ---------  --------------
<S>                              <C>          <C>             <C>        <C>             <C>        <C>
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
 
Total Portfolio of Program
 Loans.........................      99,196   $   13,724,585    136,972  $   21,489,014    217,719  $   37,908,754
                                 -----------  --------------  ---------  --------------  ---------  --------------
                                 -----------  --------------  ---------  --------------  ---------  --------------
Period of Delinquency(1)
  30 to 59 days................       2,439   $      319,663      2,973  $      396,403      2,875  $      419,519
  60 to 89 days................         697           93,302        706         103,710        572          84,335
  90 days or more..............         902          145,245      1,268         220,943      1,204         221,281
                                 -----------  --------------  ---------  --------------  ---------  --------------
Total Delinquent Loans.........       4,038   $      558,210      4,947  $      721,056      4,651  $      725,135
                                 -----------  --------------  ---------  --------------  ---------  --------------
                                 -----------  --------------  ---------  --------------  ---------  --------------
Percent of Portfolio...........        4.07%            4.07%      3.61%           3.36%      2.14%           1.91%
</TABLE>
<TABLE>
<CAPTION>
                                           AS OF                       AS OF                       AS OF
                                     DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                 --------------------------  --------------------------  --------------------------
<S>                              <C>                         <C>                         <C>
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
 
Foreclosures(2)................         $    132,326                $    189,563                $    248,806
Foreclosure Ratio(3)...........                 0.96%                         0.88     %                  0.66     %
 
<CAPTION>
 
                                         YEAR ENDED                  YEAR ENDED                  YEAR ENDED
                                     DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                 --------------------------  --------------------------  --------------------------
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
<S>                              <C>                         <C>                         <C>
 
Net Gain (Loss)(4).............         $    (4,897)                $   (11,105)                $   (36,793)
Net Gain (Loss) Ratio(5).......               (0.04)%                       (0.05)     %                (0.10)     %
</TABLE>
 
- --------------------------
(1) The  indicated periods of delinquency  are based on the  number of days past
    due, based on a 30-day month. No mortgage loan is considered delinquent  for
    these  purposes until one month has passed since its contractual due date. A
    mortgage  loan  is   no  longer  considered   delinquent  once   foreclosure
    proceedings have commenced.
 
(2) Includes loans in the applicable portfolio for which foreclosure proceedings
    had  been instituted or with respect to  which the related property had been
    acquired as of the dates indicated.
 
(3) Foreclosures as a percentage of total  loans in the applicable portfolio  at
    the end of each period.
 
(4) Does  not  include gain  or loss  with  respect to  loans in  the applicable
    portfolio for  which foreclosure  proceedings had  been instituted  but  not
    completed  as of  the dates indicated,  or for which  the related properties
    have been acquired in foreclosure proceedings but not yet sold.
 
(5) Net gain (loss) as a percentage  of total loans in the applicable  portfolio
    at the end of each period.
 
                                      S-64
<PAGE>
                              FIXED PROGRAM LOANS
 
<TABLE>
<CAPTION>
                                            AS OF                       AS OF                      AS OF
                                      DECEMBER 31, 1990           DECEMBER 31, 1991          DECEMBER 31, 1992
                                 ---------------------------  -------------------------  -------------------------
                                                BY DOLLAR                  BY DOLLAR                  BY DOLLAR
                                   BY NO.         AMOUNT       BY NO.        AMOUNT       BY NO.        AMOUNT
                                  OF LOANS       OF LOANS     OF LOANS      OF LOANS     OF LOANS      OF LOANS
                                 -----------  --------------  ---------  --------------  ---------  --------------
<S>                              <C>          <C>             <C>        <C>             <C>        <C>
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
 
Total Portfolio of Fixed
 Program Loans.................      86,233   $   11,687,518    120,333  $   18,604,937    186,059  $   32,047,865
                                 -----------  --------------  ---------  --------------  ---------  --------------
                                 -----------  --------------  ---------  --------------  ---------  --------------
Period of Delinquency(1)
  30 to 59 days................       1,823   $      227,468      2,379  $      311,415      2,341  $      332,954
  60 to 89 days................         456           52,748        534          72,567        464          67,300
  90 days or more..............         538           72,393        859         133,313        920         159,831
                                 -----------  --------------  ---------  --------------  ---------  --------------
Total Delinquent Loans.........       2,817   $      352,609      3,772  $      517,295      3,725  $      560,085
                                 -----------  --------------  ---------  --------------  ---------  --------------
                                 -----------  --------------  ---------  --------------  ---------  --------------
Percent of Fixed Program Loan
 Portfolio.....................        3.27%            3.02%      3.13%           2.78%      2.00%           1.75%
</TABLE>
<TABLE>
<CAPTION>
                                           AS OF                       AS OF                       AS OF
                                     DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                 --------------------------  --------------------------  --------------------------
<S>                              <C>                         <C>                         <C>
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
 
Foreclosures(2)................          $   48,681                  $   93,405                 $    152,089
Foreclosure Ratio(3)...........                0.42%                         0.50      %                  0.47     %
 
<CAPTION>
 
                                         YEAR ENDED                  YEAR ENDED                  YEAR ENDED
                                     DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                 --------------------------  --------------------------  --------------------------
                                                           (DOLLAR AMOUNTS IN THOUSANDS)
<S>                              <C>                         <C>                         <C>
 
Net Gain (Loss)(4).............          $   (1,194)                 $   (4,050)                $    (16,079)
Net Gain (Loss) Ratio(5).......               (0.01)%                       (0.02      )%                 (0.05     )%
</TABLE>
 
                                      S-65
<PAGE>
                   FIXED 15-YEAR NON-RELOCATION PROGRAM LOANS
 
<TABLE>
<CAPTION>
                                          AS OF                       AS OF                       AS OF
                                    DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                --------------------------  --------------------------  --------------------------
                                               BY DOLLAR                   BY DOLLAR                   BY DOLLAR
                                  BY NO.       AMOUNT OF      BY NO.       AMOUNT OF      BY NO.       AMOUNT OF
                                 OF LOANS        LOANS       OF LOANS        LOANS       OF LOANS        LOANS
                                -----------  -------------  -----------  -------------  -----------  -------------
<S>                             <C>          <C>            <C>          <C>            <C>          <C>
                                                          (DOLLAR AMOUNTS IN THOUSANDS)
Total Portfolio of
 Fixed 15-Year Non-relocation
 Program Loans................      12,273   $   1,244,533      17,215   $   2,148,635      49,332   $   7,805,963
                                -----------  -------------  -----------  -------------  -----------  -------------
                                -----------  -------------  -----------  -------------  -----------  -------------
Period of Delinquency(1)
  30 to 59 days...............         260   $      29,485         307   $      30,859         299   $      36,642
  60 to 89 days...............          54           5,762          66           5,370          63           7,492
  90 days or more.............          55           7,061          87          13,480          85           9,240
                                -----------  -------------  -----------  -------------  -----------  -------------
Total Delinquent Loans........         369   $      42,308         460   $      49,709         447   $      53,374
                                -----------  -------------  -----------  -------------  -----------  -------------
                                -----------  -------------  -----------  -------------  -----------  -------------
Percent of
 Fixed 15-Year Non-relocation
 Program Loan Portfolio.......        3.01%           3.40%       2.67 %          2.31%       0.91 %          0.68%
</TABLE>
<TABLE>
<CAPTION>
                                          AS OF                       AS OF                       AS OF
                                    DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                --------------------------  --------------------------  --------------------------
                                                          (DOLLAR AMOUNTS IN THOUSANDS)
<S>                             <C>                         <C>                         <C>
Foreclosures(2)...............          $    5,696                 $     10,360                $     15,521
Foreclosure Ratio(3)..........                  0.46%                        0.48     %                  0.20     %
 
<CAPTION>
 
                                        YEAR ENDED                  YEAR ENDED                  YEAR ENDED
                                    DECEMBER 31, 1990           DECEMBER 31, 1991           DECEMBER 31, 1992
                                --------------------------  --------------------------  --------------------------
                                                          (DOLLAR AMOUNTS IN THOUSANDS)
<S>                             <C>                         <C>                         <C>
Net Gain (Loss)(4)............          $    (459)                 $      (211)                $      (450)
Net Gain (Loss) Ratio(5)......                (0.04)%                      (0.01)     %                (0.01)     %
</TABLE>
 
- --------------------------
(1) The  indicated periods of delinquency  are based on the  number of days past
    due, based on a 30-day month. No mortgage loan is considered delinquent  for
    these  purposes until one month has passed since its contractual due date. A
    mortgage  loan  is   no  longer  considered   delinquent  once   foreclosure
    proceedings have commenced.
 
(2) Includes loans in the applicable portfolio for which foreclosure proceedings
    had  been instituted or with respect to  which the related property had been
    acquired as of the dates indicated.
 
(3) Foreclosures as a percentage of total  loans in the applicable portfolio  at
    the end of each period.
 
(4) Does  not  include gain  or loss  with  respect to  loans in  the applicable
    portfolio for  which foreclosure  proceedings had  been instituted  but  not
    completed  as of  the dates indicated,  or for which  the related properties
    have been acquired in foreclosure proceedings but not yet sold.
 
(5) Net gain (loss) as a percentage  of total loans in the applicable  portfolio
    at the end of each period.
 
    The likelihood that a mortgagor will become delinquent in the payment of his
or  her mortgage loan, the rate of any subsequent foreclosures, and the severity
of any loan loss experience, may be affected by a number of factors related to a
borrower's personal circumstances, including,  but not limited to,  unemployment
or  change  in  employment  (or  in  the  case  of  self-employed  mortgagors or
mortgagors relying  on  commission  income,  fluctuations  in  income),  marital
separation  and the  mortgagor's equity  in the  related mortgaged  property. In
addition, delinquency, foreclosure and loan loss experience may be sensitive  to
adverse  economic  conditions,  either  nationally  or  regionally,  may exhibit
seasonal variations and  may be influenced  by the level  of interest rates  and
servicing   decisions  on  the  applicable  mortgage  loans.  Regional  economic
conditions (including  declining real  estate  values) may  particularly  affect
delinquency,  foreclosure  and loan  loss experience  on  mortgage loans  to the
extent that mortgaged properties are  concentrated in certain geographic  areas.
The Seller believes that the changes in the
 
                                      S-66
<PAGE>
delinquency, foreclosure and loan loss experience of PHMC's respective servicing
portfolios  during  the  periods  set  forth  in  the  preceding  tables  may be
attributable to factors such  as those described above,  although the Seller  is
unable  to assess to what extent these  changes are the result of any particular
factor or a combination of factors.  The delinquency, foreclosure and loan  loss
experience  on  the  Mortgage  Loans  contained  in  the  Trust  Estate  may  be
particularly  affected  to  the  extent   that  the  Mortgaged  Properties   are
concentrated  in areas which experience adverse economic conditions or declining
real estate values. See "Description of the Mortgage Loans."
 
                      PREPAYMENT AND YIELD CONSIDERATIONS
 
    The rate  of distributions  in reduction  of the  principal balance  of  any
Subclass of the Class A Certificates and the Class M Certificates, the aggregate
amount  of distributions  on any  Subclass of the  Class A  Certificates and the
Class M Certificates and the  yield to maturity of any  Subclass of the Class  A
Certificates  and the  Class M Certificates  purchased at a  discount or premium
will be directly related to  the rate of payments  of principal on the  Mortgage
Loans  in  the Trust  Estate and  the  amount and  timing of  mortgagor defaults
resulting in Realized  Losses. The rate  of principal payments  on the  Mortgage
Loans  will in turn  be affected by  the amortization schedules  of the Mortgage
Loans, the  rate of  principal prepayments  (including partial  prepayments  and
those  resulting  from  refinancing)  thereon  by  mortgagors,  liquidations  of
defaulted Mortgage  Loans, repurchases  by the  Seller of  Mortgage Loans  as  a
result of defective documentation or breaches of representations and warranties,
optional  repurchase  by the  Seller of  defaulted  Mortgage Loans  and optional
purchase by the Servicer  of all of  the Mortgage Loans  in connection with  the
termination   of   the  Trust   Estate.   See  "Description   of   the  Mortgage
Loans--Optional  Repurchase  of  Defaulted  Mortgage  Loans"  and  "Pooling  and
Servicing    Agreement--Optional    Termination"   herein    and    "The   Trust
Estates--Mortgage  Loans--Assignment  of   Mortgage  Loans   to  the   Trustee,"
"--Optional  Repurchases" and "The Pooling and Servicing Agreement--Termination;
Purchase of  Mortgage Loans"  in  the Prospectus.  Mortgagors are  permitted  to
prepay  the Mortgage Loans, in whole or in part, at any time without penalty. As
described  under   "Description   of  the   Certificates--Principal   (Including
Prepayments)"   herein,  all  or  a  disproportionate  percentage  of  principal
prepayments on the  Mortgage Loans  (including liquidations  and repurchases  of
Mortgage  Loans) will be distributed to the holders of Class A Certificates then
entitled to  distributions  in  respect  of  principal  during  the  nine  years
beginning  on the first  Distribution Date. Prepayments  (which, as used herein,
include all unscheduled payments of principal, including payments as the  result
of  liquidations, purchases and repurchases) of  the Mortgage Loans in the Trust
Estate will  result  in distributions  to  Certificateholders then  entitled  to
distributions  in  respect  of principal  of  amounts which  would  otherwise be
distributed over the remaining terms of  such Mortgage Loans. Since the rate  of
prepayment  on the Mortgage Loans will depend  on future events and a variety of
factors (as described more fully below  and in the Prospectus under  "Prepayment
and  Yield Considerations"), no  assurance can be  given as to  such rate or the
rate of principal payments on  any Subclass of the  Class A Certificates or  the
Class M Certificates or the aggregate amount of distributions on any Subclass of
Class A Certificates or the Class M Certificates.
 
    The  rate of payments (including prepayments)  on pools of mortgage loans is
influenced by a variety  of economic, geographic, social  and other factors.  If
prevailing  rates  for  similar  mortgage  loans  fall  significantly  below the
Mortgage Interest Rates  on the  Mortgage Loans,  the rate  of prepayment  would
generally  be expected  to increase.  Conversely, if  interest rates  on similar
mortgage loans  rise significantly  above  the Mortgage  Interest Rates  on  the
Mortgage  Loans, the rate of prepayment would generally be expected to decrease.
The rate of prepayment on the Mortgage Loans may also be influenced by  programs
offered  by mortgage loan originators  (including PHMC) to encourage refinancing
through such  originators, including  but  not limited  to general  or  targeted
solicitations,  reduced origination  fees or  closing costs,  or other financial
incentives.
 
    Other factors  affecting prepayment  of mortgage  loans include  changes  in
mortgagors'  housing  needs,  job transfers,  unemployment  or, in  the  case of
self-employed mortgagors or mortgagors relying on commission income, substantial
fluctuations in income, significant declines  in real estate values and  adverse
economic   conditions  either  generally  or  in  particular  geographic  areas,
mortgagors' equity in
 
                                      S-67
<PAGE>
the Mortgaged Properties and servicing decisions. In this regard, mortgagors  of
Relocation Mortgage Loans are thought by some within the mortgage industry to be
more  likely to be transferred by their employers than mortgagors generally are.
There can be no assurance as to the likelihood of future transfers of mortgagors
of Relocation Mortgage Loans or as to such mortgagors' continued employment with
the same employers by  which they were employed  when their Mortgage Loans  were
originated.  No  representation is  made as  to  the rate  of prepayment  on the
Relocation Mortgage  Loans.  In addition,  all  of the  Mortgage  Loans  contain
due-on-sale  clauses  which will  generally be  exercised upon  the sale  of the
related Mortgaged Properties. Consequently, acceleration of mortgage payments as
a result of any such sale will  affect the level of prepayments on the  Mortgage
Loans.  The extent to which defaulted  Mortgage Loans are assumed by transferees
of the  related Mortgaged  Properties will  also affect  the rate  of  principal
payments.  The rate of prepayment  and, therefore, the yield  to maturity of the
Class A and Class M Certificates will be affected by the extent to which (i) the
Seller elects to repurchase,  rather than substitute  for, Mortgage Loans  which
are  found by  the Trustee  to have defective  documentation or  with respect to
which the Seller has breached a representation or warranty or (ii) the  Servicer
elects  to encourage the refinancing of  any defaulted Mortgage Loan rather than
to  permit  an  assumption  thereof  by  a  mortgagor  meeting  the   Servicer's
underwriting  guidelines. See "Servicing of  the Mortgage Loans-- Enforcement of
Due-on-Sale  Clauses;  Realization  Upon   Defaulted  Mortgage  Loans"  in   the
Prospectus.  There can  be no  certainty as  to the  rate of  prepayments on the
Mortgage Loans  during  any  period  or  over the  life  of  the  Series  1993-9
Certificates. See "Prepayment and Yield Considerations" in the Prospectus.
 
    The  timing of changes in  the rate of prepayment  on the Mortgage Loans may
significantly affect the actual yield to maturity experienced by an investor who
purchases a Class A or  Class M Certificate at a  price other than par, even  if
the  average rate of principal payments experienced over time is consistent with
such investor's expectation. In general,  the earlier a prepayment of  principal
on  the underlying  Mortgage Loans,  the greater  the effect  on such investor's
yield to maturity. As a result, the effect on such investor's yield 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 Class A and
Class  M Certificates would not  be fully offset by  a subsequent like reduction
(or increase) in the rate of principal payments.
 
    The yield to  maturity on the  Class M Certificates  will be more  sensitive
than  the Class A Certificates  to losses due to  defaults on the Mortgage Loans
(and the timing thereof), to the extent not covered by the Class B Certificates,
because the  entire amount  of such  losses will  be allocable  to the  Class  M
Certificates  prior to  the Class A  Certificates, except  as otherwise provided
herein. To  the  extent  not  covered by  Periodic  Advances,  delinquencies  on
Mortgage  Loans  may also  have  a relatively  greater  effect on  the  yield to
investors in  the  Class  M Certificates.  Amounts  otherwise  distributable  to
holders  of  the Class  M Certificates  will  be made  available to  protect the
holders of the Class A  Certificates against interruptions in distributions  due
to  certain  mortgagor  delinquencies.  Such delinquencies,  to  the  extent not
covered by the Class B Certificates, even if subsequently cured, may affect  the
timing  of the receipt of distributions by  the holders of Class M Certificates,
because the entire amount of those delinquencies  would be borne by the Class  M
Certificates prior to the Class A Certificates.
 
    No  representation  is made  as to  the  rate of  principal payments  on the
Mortgage Loans  or as  to the  yield  to maturity  of any  Subclass of  Class  A
Certificates  or  the Class  M Certificates.  An  investor is  urged to  make an
investment decision with respect to any Subclass of Class A Certificates or  the
Class M Certificates based on the anticipated yield to maturity of such Subclass
of  Class A Certificates or the Class M Certificates resulting from its purchase
price and  such investor's  own determination  as to  anticipated Mortgage  Loan
prepayment rates under a variety of scenarios and, in the case of the Class A-5,
Class  A-6,  Class  A-15  and  Class  A-16  Certificates,  such  investor's  own
determination of LIBOR. The extent to which any Subclass of Class A Certificates
or the Class M Certificates are purchased at a discount or a premium, the degree
to which  the timing  of payments  on such  Subclass or  Class is  sensitive  to
prepayments  and, in the case  of the Class A-5  and Class A-6 Certificates, the
degree to which LIBOR varies for LIBOR Based Interest Accrual Periods commencing
on or after February 25, 1995 from the level anticipated by an investor, and, in
the case of the Class A-15 and Class A-16
 
                                      S-68
<PAGE>
Certificates, the degree to which LIBOR varies from the level anticipated by  an
investor,  will determine  the extent  to which  the yield  to maturity  of such
Subclass or  Class may  vary  from the  anticipated  yield. An  investor  should
carefully  consider the associated risks, including, in  the case of any Class A
or Class M Certificates  purchased at a  discount, the risk  that a slower  than
anticipated  rate of principal payments 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 any Class A  or Class M Certificates purchased  at a premium, or in
the case of the  Class A-3 and  Class A-6 Certificates  which have no  principal
balance,  the risk  that a  faster than  anticipated rate  of principal payments
could result  in  an actual  yield  to such  investor  that is  lower  than  the
anticipated yield.
 
    An  investor should consider the risk that rapid rates of prepayments on the
Mortgage Loans, and therefore of amounts distributable in reduction of principal
balance of the Class A or Class M Certificates, may coincide with periods of low
prevailing interest rates. During such periods, the effective interest rates  on
securities  in which an  investor may choose to  reinvest amounts distributed in
reduction of  the  principal balance  of  such investor's  Class  A or  Class  M
Certificate  may  be lower  than the  applicable Pass-Through  Rate. Conversely,
slower rates of  prepayments on  the Mortgage  Loans, and  therefore of  amounts
distributable  in  reduction of  principal balance  of  the Class  A or  Class M
Certificates, may  coincide  with periods  of  high prevailing  interest  rates.
During  such  periods, the  amount of  principal  distributions available  to an
investor for  reinvestment  at  such  high  prevailing  interest  rates  may  be
relatively small.
 
    Investors  in the Class  A-5 Certificates should  understand that, for LIBOR
Based Interest Accrual  Periods commencing  on or  after February  25, 1995,  at
levels  of LIBOR greater than approximately 9.35%, the Pass-Through Rate of such
Subclass will remain at its maximum rate of 10.0001% per annum. Investors in the
Class A-5 Certificates should also consider the risk that lower than anticipated
levels of LIBOR, for LIBOR Based Interest Accrual Periods commencing on or after
February 25, 1995,  could result  in actual yields  to such  investors that  are
lower  than  the  anticipated yields.  Conversely,  investors in  the  Class A-6
Certificates should consider  the risk  that higher than  anticipated levels  of
LIBOR,  for LIBOR Based Interest Accrual Periods commencing on or after February
25, 1995, could result in actual yields to such investors that are significantly
lower than anticipated yields.  Investors in the  Class A-6 Certificates  should
also  understand that at levels  of LIBOR in excess  of approximately 9.35%, the
Pass-Through Rate  of the  Class A-6  Certificates  will be  0% per  annum.  See
"--Sensitivity  of the Class  A-6 and Class  A-16 Certificates" below. Moreover,
investors in the Class A-5 and Class A-6 Certificates should understand that the
timing of changes in the level of LIBOR for LIBOR Based Interest Accrual Periods
commencing on or after February  25, 1995 may affect  the actual yields to  such
investors  even  if  the  average  level  is  consistent  with  such  investors'
expectations.
 
    Investors in the Class A-15 Certificates should understand that at levels of
LIBOR greater than approximately 8.50%,  the Pass-Through Rate of such  Subclass
will  remain at its maximum rate of 9.75% per annum. Investors in the Class A-15
Certificates should also consider the risk that lower than anticipated levels of
LIBOR could  result in  actual yields  to  such investors  that are  lower  than
anticipated yields. Investors in the Class A-16 Certificates should consider the
risk  that higher than anticipated levels of LIBOR could result in actual yields
to  such  investors  that  are  significantly  lower  than  anticipated  yields.
Investors  in the  Class A-16 Certificates  should understand that  at levels of
LIBOR greater than approximately 8.50%, the Pass-Through Rate of the Class  A-16
Certificates will be 0% per annum. See
"--Sensitivity of the Class A-6 and Class A-16 Certificates" below.
 
    Investors   in  the  Class  A-5,  Class  A-6,  Class  A-15  and  Class  A-16
Certificates should understand that the timing of changes in the level of  LIBOR
may  affect the  actual yields to  such investors  even if the  average level is
consistent with  such  investors'  expectations.  Each  investor  must  make  an
independent  decision  as to  the appropriate  LIBOR assumptions  to be  used in
deciding whether to purchase a Class A-5,  Class A-6, Class A-15 and Class  A-16
Certificate.
 
    As indicated under "Federal Income Tax Considerations" herein, the Class A-R
Certificateholder's REMIC taxable income and the tax liability thereon will, and
the Class A-LR Certificateholder's REMIC
 
                                      S-69
<PAGE>
taxable  income and the tax liability  thereon may, exceed cash distributions to
such holders during certain periods. There can be no assurance as to the  amount
by   which  such  taxable  income  or   such  tax  liability  will  exceed  cash
distributions in respect of the Class A-R and the Class A-LR Certificates during
any such period  and no representation  is made with  respect thereto under  any
principal  prepayment scenario or otherwise. DUE TO THE SPECIAL TAX TREATMENT OF
RESIDUAL INTERESTS, THE  AFTER-TAX RETURN OF  THE CLASS A-R  AND THE CLASS  A-LR
CERTIFICATES  MAY BE SIGNIFICANTLY LOWER THAN WOULD BE THE CASE IF THE CLASS A-R
AND CLASS A-LR CERTIFICATES WERE TAXED AS DEBT INSTRUMENTS.
 
    As referred to herein, the  weighted average life of  a Subclass of Class  A
Certificates (other than the Class A-3 and Class A-6 Certificates) and the Class
M  Certificates refers to the  average amount of time  that will elapse from the
date of issuance of such Subclass or Class until each dollar in reduction of the
principal balance of such Subclass or Class is distributed to the investor.  The
weighted  average life of  the Class A-3  Certificates is the  average amount of
time that  will  elapse  between the  date  of  issuance of  the  Series  1993-9
Certificates  and the date  on which each  dollar in reduction  of the principal
balances of the Class A-1 and  Class A-2 Certificates (indicated percentages  of
which  balances comprise  the Class A-3  Notional Amount) is  distributed to the
investors in the Class A-1 and Class A-2 Certificates. The weighted average life
of a  Class A-6  Certificate is  the average  amount of  time that  will  elapse
between  the date of issuance of the  Series 1993-9 Certificates and the date on
which each  dollar  in reduction  of  the principal  balance  of the  Class  A-5
Certificates  (the indicated percentage of  which balance comprises the notional
amount of the  Class A-6 Certificates)  is distributed to  the investors in  the
Class  A-5 Certificates. The weighted average life of each Subclass of the Class
A Certificates and the Class M  Certificates will be influenced by, among  other
things,  the rate and timing of principal  payments on the Mortgage Loans, which
may be in the form of scheduled amortization or prepayments.
 
    THE WEIGHTED AVERAGE LIVES OF THE  SUPPORT CERTIFICATES, AND THE CLASS  A-13
AND  CLASS A-14 CERTIFICATES TO THE EXTENT  OF THEIR SUPPORT COMPONENTS, AS WELL
AS THE YIELD  TO MATURITY OF  THE SUPPORT  CERTIFICATES AND THE  CLASS A-13  AND
CLASS A-14 CERTIFICATES, TO THE EXTENT THAT SUCH CERTIFICATES ARE PURCHASED AT A
DISCOUNT  OR PREMIUM,  WILL BE  SENSITIVE, IN  VARYING DEGREES,  TO THE  RATE OF
PRINCIPAL PAYMENTS (INCLUDING PREPAYMENTS) ON THE MORTGAGE LOANS.  Specifically,
if  prepayments result in an Adjusted  Principal Distribution Amount equal to or
less than the sum  of the PAC  Principal Amounts on  any Distribution Date,  the
Support  Certificates  will  receive  no  distributions  in  reduction  of their
principal balances on such Distribution Date  and the Class A-13 and Class  A-14
Certificates  will  receive  no  distributions  in  reduction  of  the Component
Principal Balance  of  their  Support  Components  on  such  Distribution  Date.
Further,  on each Distribution Date up to and including the Distribution Date on
which the Class A  Subclass Principal Balances of  the Support Certificates  and
the  Component Principal Balances of the Support Components are reduced to zero,
any Excess Principal Payments will be applied first to the Support  Certificates
and  the  Support  Components and  then  to  the outstanding  Subclasses  of PAC
Certificates and the PAC Components in the proportions and priorities  described
herein  without regard to their PAC Principal Amounts. In addition, as among the
Support Certificates  and  the Support  Components,  if the  Adjusted  Principal
Distribution  Amount exceeds the PAC Principal Amounts and the Reduction Amounts
for any Distribution  Date, the excess  will be applied  first to the  Companion
Certificates,  second, concurrently to the  Scheduled Companion Certificates and
the Scheduled Companion Component , third to the Scheduled Component and  fourth
to  the  Scheduled Certificates  without regard  to  the Reduction  Amounts. See
"Description of the  Certificates--Principal (Including  Prepayments)--Principal
Payment Characteristics of the PAC Certificates, the PAC Components, the Support
Certificates  and  the Support  Components" and  "--Allocation  of Amount  to be
Distributed to the Class A and Class M Certificates" herein.
 
    Prepayments on mortgage loans are commonly measured relative to a prepayment
standard or model. The  model used in this  Prospectus Supplement, the  Standard
Prepayment  Assumption ("SPA"),  represents an  assumed rate  of prepayment each
month relative  to the  then outstanding  principal  balance of  a pool  of  new
mortgage  loans. A prepayment assumption of 100% SPA assumes constant prepayment
rates of  0.2% per  annum of  the  then outstanding  principal balance  of  such
mortgage  loans in  the first  month of the  life of  the mortgage  loans and an
additional 0.2% per annum in each month
 
                                      S-70
<PAGE>
thereafter until the thirtieth  month. Beginning in the  thirtieth month and  in
each  month thereafter during the life of the mortgage loans, 100% SPA assumes a
constant prepayment rate of 6% per annum each month. As used in the table below,
"0% SPA" assumes  prepayment rates  equal to 0%  of SPA,  I.E., no  prepayments.
Correspondingly,  "75% SPA" assumes prepayment rates equal to 75% of SPA, and so
forth. SPA  DOES  NOT PURPORT  TO  BE  A HISTORICAL  DESCRIPTION  OF  PREPAYMENT
EXPERIENCE  OR A PREDICTION OF THE ANTICIPATED RATE OF PREPAYMENT OF ANY POOL OF
MORTGAGE LOANS, INCLUDING THE MORTGAGE LOANS.
 
    The tables  set  forth  below  have  been  prepared  on  the  basis  of  the
characteristics  of the Mortgage Loans  that are expected to  be included in the
Trust Estate, as described above under "Description of the Mortgage Loans."  The
tables  assume, among other things, that (i) the scheduled payment in each month
for each Mortgage Loan has been based on its outstanding balance as of the first
day of the month preceding the month of such payment, its Mortgage Interest Rate
and its remaining term to stated maturity, so that such scheduled payments would
amortize the  remaining balance  by  its stated  maturity date,  (ii)  scheduled
monthly  payments of principal and interest on the Mortgage Loans will be timely
received on the first day of each month (with no defaults), commencing in  March
1993, (iii) the Seller does not repurchase any Mortgage Loan, as described under
"The Trust Estates--Mortgage Loans" in the Prospectus, and the Servicer does not
exercise  its  option  to  purchase  the  Mortgage  Loans  and  thereby  cause a
termination of  the Trust  Estate, (iv)  principal prepayments  on the  Mortgage
Loans will be received on the last day of each month commencing in February 1993
at  the respective constant percentages of SPA set forth in the tables and there
are no Prepayment Interest  Shortfalls, (v) each Mortgage  Loan has an  original
term  to maturity of  15 years and  (vi) the Series  1993-9 Certificates will be
issued on February 26, 1993. IT IS HIGHLY UNLIKELY THAT THE MORTGAGE LOANS  WILL
PREPAY AT ANY CONSTANT RATE OR THAT ALL OF THE MORTGAGE LOANS WILL PREPAY AT THE
SAME  RATE. In addition, there may be differences between the characteristics of
the mortgage loans  ultimately included  in the  Trust Estate  and the  Mortgage
Loans which are expected to be included, as described herein. Any difference may
have an effect upon the actual percentages of initial Class A Subclass Principal
Balance  of the Subclasses of Class A Certificates and initial principal balance
of the Class M  Certificates outstanding, the actual  weighted average lives  of
the Subclasses of Class A Certificates and the Class M Certificates and the date
on  which the  Class A  Subclass Principal  Balance of  any Subclass  of Class A
Certificates and the principal balance of  the Class M Certificates are  reduced
to zero.
 
    Based  upon  the foregoing  assumptions, the  following tables  indicate the
weighted average life of each Subclass and Class of Offered Certificates and set
forth the percentages of the initial Class A Subclass Principal Balance of  each
such  Subclass (or, in the case of the Class A-3 and Class A-6 Certificates, the
initial Class  A-3  Notional  Amount  and initial  Class  A-6  Notional  Amount,
respectively),  and, in  the case  of the Class  M Certificates,  of the initial
principal balance of the  Class M Certificates that  would be outstanding  after
each of the dates shown at various constant percentages of SPA.
 
                                      S-71
<PAGE>
    PERCENTAGE OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE(1) AND CLASS M
                       PRINCIPAL BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                                       CLASS A-1                                           CLASS A-2
                                                  CERTIFICATES AT THE                                 CERTIFICATES AT THE
                                                 FOLLOWING PERCENTAGES                               FOLLOWING PERCENTAGES
                                                         OF SPA                                              OF SPA
<S>                   <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
 
<CAPTION>
    DISTRIBUTION
        DATE              0%           75%         135%         300%         325%         500%          0%           75%
<S>                   <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
Initial.............
                             100          100          100          100          100          100
                                                                                                           100          100
February 1994.......
                              82           74           67           67           67           67
                                                                                                            92           88
February 1995.......
                              43            7            0            0            0            0
                                                                                                            74           58
February 1996.......
                               1            0            0            0            0            0
                                                                                                            55           42
February 1997.......
                               0            0            0            0            0            0
                                                                                                            47           29
February 1998.......
                               0            0            0            0            0            0
                                                                                                            38           17
February 1999.......
                               0            0            0            0            0            0
                                                                                                            29            4
February 2000.......
                               0            0            0            0            0            0
                                                                                                            20            0
February 2001.......
                               0            0            0            0            0            0
                                                                                                             9            0
February 2002.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2003.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2004.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2005.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2006.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2007.......
                               0            0            0            0            0            0
                                                                                                             0            0
February 2008.......
                               0            0            0            0            0            0
                                                                                                             0            0
Weighted Average
  Life (years)(2)...
                            1.84         1.39         1.24         1.24         1.24         1.24
                                                                                                          4.19         2.94
 
<CAPTION>
                                                                                              CLASS A-3
                                                                                         CERTIFICATES AT THE
                                                                                        FOLLOWING PERCENTAGES
                                                                                                OF SPA
<S>                   <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
    DISTRIBUTION
        DATE             135%         300%         325%         500%          0%           75%         135%         300%
<S>                   <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
Initial.............
 
                             100          100          100          100
                                                                                 100          100          100          100
 
February 1994.......
 
                              85           85           85           85
                                                                                  89           84           81           81
 
February 1995.......
 
                              51           51           51           51
                                                                                  66           44           38           38
 
February 1996.......
 
                              33           33           33           24
                                                                                  41           31           25           25
 
February 1997.......
 
                              17           17           17            0
                                                                                  35           22           13           13
 
February 1998.......
 
                               2            2            2            0
                                                                                  28           12            1            1
 
February 1999.......
 
                               0            0            0            0
                                                                                  22            3            0            0
 
February 2000.......
 
                               0            0            0            0
                                                                                  14            0            0            0
 
February 2001.......
 
                               0            0            0            0
                                                                                   7            0            0            0
 
February 2002.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2003.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2004.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2005.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2006.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2007.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
February 2008.......
 
                               0            0            0            0
                                                                                   0            0            0            0
 
Weighted Average
  Life (years)(2)...
 
                            2.44         2.44         2.44         2.16
                                                                                3.58         2.54         2.13         2.13
 
<CAPTION>
                                                                                 CLASS A-4
                                                                            CERTIFICATES AT THE
                                                                           FOLLOWING PERCENTAGES
                                                                                   OF SPA
    DISTRIBUTION
        DATE             325%         500%          0%           75%         135%         300%         325%         500%
 
Initial.............
 
                             100          100
                                                       100          100          100          100          100          100
 
February 1994.......
 
                              81           81
                                                       100          100          100          100          100          100
 
February 1995.......
 
                              38           38
                                                       100          100           84           84           84           84
 
February 1996.......
 
                              25           18
                                                       100           43            0            0            0            0
 
February 1997.......
 
                              13            0
                                                        64            0            0            0            0            0
 
February 1998.......
 
                               1            0
                                                        24            0            0            0            0            0
 
February 1999.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2000.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2001.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2002.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2003.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2004.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2005.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2006.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2007.......
 
                               0            0
                                                         0            0            0            0            0            0
 
February 2008.......
 
                               0            0
                                                         0            0            0            0            0            0
 
Weighted Average
  Life (years)(2)...
 
                            2.13         1.92
                                                      4.38         2.92         2.44         2.44         2.44         2.37
 
</TABLE>
 
- ------------------
(1) With  respect to  the Class A-3  Certificates, percentages  are expressed as
    percentages of the initial Class A-3 Notional Amount.
(2) The weighted average  life of an  Offered Certificate is  determined by  (i)
    multiplying  the  amount  of  each distribution  in  reduction  of principal
    balance or notional amount, as the case may be, by the number of years  from
    the  date of  the issuance of  such Certificate to  the related Distribution
    Date, (ii) adding the  results and (iii) dividing  the sum by the  aggregate
    distributions  in reduction of principal balance  or notional amount, as the
    case may be, referred to in clause (i).
 
                                      S-72
<PAGE>
    PERCENTAGE OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE(1) AND CLASS M
                       PRINCIPAL BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                                 CLASS A-5                                              CLASS A-6
                                            CERTIFICATES AT THE                                    CERTIFICATES AT THE
                                           FOLLOWING PERCENTAGES                                  FOLLOWING PERCENTAGES
                                                   OF SPA                                                 OF SPA
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
 
<CAPTION>
    DISTRIBUTION
        DATE             0%         75%       135%       300%       325%       500%        0%         75%       135%       300%
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Initial.............
                            100        100        100        100        100        100
                                                                                              100        100        100        100
February 1994.......
                            100        100        100        100        100        100
                                                                                              100        100        100        100
February 1995.......
                            100        100         94         94         94         94
                                                                                              100        100         94         94
February 1996.......
                            100         80         64         64         64         54
                                                                                              100         80         64         64
February 1997.......
                             87         60         46         46         46         22
                                                                                               87         60         46         46
February 1998.......
                             73         46         28         28         28          6
                                                                                               73         46         28         28
February 1999.......
                             60         31         12         12         12          2
                                                                                               60         31         12         12
February 2000.......
                             49         17          6          6          6          0
                                                                                               49         17          6          6
February 2001.......
                             36          7          3          3          3          0
                                                                                               36          7          3          3
February 2002.......
                             22          3          1          1          1          0
                                                                                               22          3          1          1
February 2003.......
                              8          0          0          0          0          0
                                                                                                8          0          0          0
February 2004.......
                              3          0          0          0          0          0
                                                                                                3          0          0          0
February 2005.......
                              0          0          0          0          0          0
                                                                                                0          0          0          0
February 2006.......
                              0          0          0          0          0          0
                                                                                                0          0          0          0
February 2007.......
                              0          0          0          0          0          0
                                                                                                0          0          0          0
February 2008.......
                              0          0          0          0          0          0
                                                                                                0          0          0          0
Weighted Average
  Life (years)(2)...
                           6.91       4.94       4.09       4.09       4.09       3.33
                                                                                             6.91       4.94       4.09       4.09
 
<CAPTION>
                                                                                                                   CLASS A-8
                                                                  CERTIFICATES AT THE                              FOLLOWING
                                                                 FOLLOWING PERCENTAGES                            PERCENTAGES
 
                                                                         OF SPA                                      OF SPA
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
    DISTRIBUTION
        DATE            325%       500%        0%         75%       135%       300%       325%       500%        0%         75%
<S>                   <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Initial.............
 
                            100        100
                                                  100        100        100        100        100        100
                                                                                                                    100        100
 
February 1994.......
 
                            100        100
                                                  100        100        100        100        100        100
                                                                                                                    100        100
 
February 1995.......
 
                             94         94
                                                  100        100        100        100        100        100
                                                                                                                    100        100
 
February 1996.......
 
                             64         54
                                                  100        100        100        100        100         27
                                                                                                                    100        100
 
February 1997.......
 
                             46         22
                                                  100         70          0          0          0          0
                                                                                                                    100        100
 
February 1998.......
 
                             28          6
                                                  100          0          0          0          0          0
                                                                                                                    100         83
 
February 1999.......
 
                             12          2
                                                   70          0          0          0          0          0
                                                                                                                    100         22
 
February 2000.......
 
                              6          0
                                                    0          0          0          0          0          0
                                                                                                                     97          0
 
February 2001.......
 
                              3          0
                                                    0          0          0          0          0          0
                                                                                                                     44          0
 
February 2002.......
 
                              1          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2003.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2004.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2005.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2006.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2007.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
February 2008.......
 
                              0          0
                                                    0          0          0          0          0          0
                                                                                                                      0          0
 
Weighted Average
  Life (years)(2)...
 
                           4.09       3.33
                                                 6.31       4.24       3.44       3.44       3.44       2.95
                                                                                                                   7.91       5.58
 
<CAPTION>
 
                                                                                             CLASS A-9
                                                                                        CERTIFICATES AT THE
                                                                                       FOLLOWING PERCENTAGES
                                                                                               OF SPA
    DISTRIBUTION
        DATE            135%       300%       325%       500%        0%         75%       135%       300%       325%       500%
 
Initial.............
 
                            100        100        100        100
                                                                        100        100        100        100        100        100
 
February 1994.......
 
                            100        100        100        100
                                                                        100        100        100        100        100        100
 
February 1995.......
 
                            100        100        100        100
                                                                        100        100        100        100        100        100
 
February 1996.......
 
                            100        100        100        100
                                                                        100        100        100        100        100        100
 
February 1997.......
 
                             85         85         85          0
                                                                        100        100        100        100        100         82
 
February 1998.......
 
                             10         10         10          0
                                                                        100        100        100        100        100          0
 
February 1999.......
 
                              0          0          0          0
                                                                        100        100         24         24         24          0
 
February 2000.......
 
                              0          0          0          0
                                                                        100         50          0          0          0          0
 
February 2001.......
 
                              0          0          0          0
                                                                        100          0          0          0          0          0
 
February 2002.......
 
                              0          0          0          0
                                                                         81          0          0          0          0          0
 
February 2003.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
February 2004.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
February 2005.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
February 2006.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
February 2007.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
February 2008.......
 
                              0          0          0          0
                                                                          0          0          0          0          0          0
 
Weighted Average
  Life (years)(2)...
 
                           4.50       4.50       4.50       3.52
                                                                       9.41       7.03       5.74       5.74       5.74       4.28
 
</TABLE>
 
- ------------------
(1) With respect to  the Class  A-6 Certificates, percentages  are expressed  as
    percentages of the initial Class A-6 Notional Amount.
 
(2) The  weighted average  life of an  Offered Certificate is  determined by (i)
    multiplying the  amount  of  each distribution  in  reduction  of  principal
    balance  or notional amount, as the case may be, by the number of years from
    the date of  the issuance of  such Certificate to  the related  Distribution
    Date,  (ii) adding the results  and (iii) dividing the  sum by the aggregate
    distributions in reduction of principal  balance or notional amount, as  the
    case may be, referred to in clause (i).
 
                                      S-73
<PAGE>
 PERCENTAGE OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE AND CLASS M PRINCIPAL
                            BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                                      CLASS A-10                                            CLASS A-11
                                                 CERTIFICATES AT THE                                    CERTIFICATES AT THE
                                                FOLLOWING PERCENTAGES                                  FOLLOWING PERCENTAGES
                                                        OF SPA                                                OF SPA
<S>                   <C>        <C>          <C>          <C>          <C>          <C>          <C>        <C>        <C>
 
<CAPTION>
    DISTRIBUTION
        DATE             0%          75%         135%         300%         325%         500%         0%         75%       135%
<S>                   <C>        <C>          <C>          <C>          <C>          <C>          <C>        <C>        <C>
Initial.............
                            100         100          100          100          100          100
                                                                                                        100        100        100
February 1994.......
                            100         100          100          100          100          100
                                                                                                        100        100        100
February 1995.......
                            100         100          100          100          100          100
                                                                                                        100        100        100
February 1996.......
                            100         100          100          100          100          100
                                                                                                        100        100        100
February 1997.......
                            100         100          100          100          100          100
                                                                                                        100        100        100
February 1998.......
                            100         100          100          100          100           78
                                                                                                        100        100        100
February 1999.......
                            100         100          100          100          100           31
                                                                                                        100        100        100
February 2000.......
                            100         100           70           70           70            2
                                                                                                        100        100        100
February 2001.......
                            100          82           37           37           37            0
                                                                                                        100        100        100
February 2002.......
                            100          34           12           12           12            0
                                                                                                        100        100        100
February 2003.......
                             98           0            0            0            0            0
                                                                                                        100         85         85
February 2004.......
                             40           0            0            0            0            0
                                                                                                        100         52         52
February 2005.......
                              0           0            0            0            0            0
                                                                                                         44         26         26
February 2006.......
                              0           0            0            0            0            0
                                                                                                          7          7          7
February 2007.......
                              0           0            0            0            0            0
                                                                                                          0          0          0
February 2008.......
                              0           0            0            0            0            0
                                                                                                          0          0          0
Weighted Average
  Life (years)(1)...
                          10.86        8.71         7.74         7.74         7.74         5.68
                                                                                                      12.13      11.26      11.25
 
<CAPTION>
                                                                                         CLASS A-12
                                                                                    CERTIFICATES AT THE
                                                                                   FOLLOWING PERCENTAGES
                                                                                           OF SPA
<S>                   <C>        <C>        <C>          <C>          <C>          <C>          <C>
    DISTRIBUTION
        DATE            300%       325%        500%         0%          75%         135%         200%         300%         325%
<S>                   <C>        <C>        <C>          <C>          <C>          <C>          <C>
Initial.............
 
                            100        100         100
                                                               100         100          100          100          100          100
 
February 1994.......
 
                            100        100         100
                                                                87          87           87           80           80           80
 
February 1995.......
 
                            100        100         100
                                                                87          87           86           57           57           57
 
February 1996.......
 
                            100        100         100
                                                                87          87           85           33           33           33
 
February 1997.......
 
                            100        100         100
                                                                87          87           84           17           17           17
 
February 1998.......
 
                            100        100         100
                                                                87          87           82            9            9            9
 
February 1999.......
 
                            100        100         100
                                                                87          87           80            7            7            7
 
February 2000.......
 
                            100        100         100
                                                                87          87           66            6            6            7
 
February 2001.......
 
                            100        100          62
                                                                87          87           40            4            4            7
 
February 2002.......
 
                            100        100          37
                                                                87          87            7            2            2            7
 
February 2003.......
 
                             85         85          22
                                                                87          76            0            0            0            7
 
February 2004.......
 
                             52         52          13
                                                                87          20            0            0            0            7
 
February 2005.......
 
                             26         26           7
                                                                87           0            0            0            0            7
 
February 2006.......
 
                              7          7           3
                                                                 0           0            0            0            0            7
 
February 2007.......
 
                              0          0           1
                                                                 0           0            0            0            0            3
 
February 2008.......
 
                              0          0           0
                                                                 0           0            0            0            0            0
 
Weighted Average
  Life (years)(1)...
 
                          11.25      11.25        8.96
                                                             11.01        9.30         6.67         2.67         2.67         3.11
 
<CAPTION>
                                                                         CLASS A-13
                                                                     CERTIFICATES AT THE
                                                                    FOLLOWING PERCENTAGES
                                                                           OF SPA
    DISTRIBUTION
        DATE             500%         0%          75%         135%         200%         300%         325%         500%
Initial.............
 
                             100
                                         100         100          100          100          100          100          100
 
February 1994.......
 
                              80
                                          94          93           93           91           89           89           89
 
February 1995.......
 
                              57
                                          94          93           93           85           78           78           63
 
February 1996.......
 
                               0
                                          94          93           93           78           64           64           37
 
February 1997.......
 
                               0
                                          94          89           79           56           42           42           33
 
February 1998.......
 
                               0
                                          94          79           79           50           37           37           25
 
February 1999.......
 
                               0
                                          90          79           79           45           36           35           10
 
February 2000.......
 
                               0
                                          80          79           69           26           26           26            1
 
February 2001.......
 
                               0
                                          80          73           58           14           14           15            0
 
February 2002.......
 
                               0
                                          80          57           50            5            5            7            0
 
February 2003.......
 
                               0
                                          79          46           20            0            0            3            0
 
February 2004.......
 
                               0
                                          60          46            0            0            0            3            0
 
February 2005.......
 
                               0
                                          47          12            0            0            0            3            0
 
February 2006.......
 
                               0
                                          43           0            0            0            0            3            0
 
February 2007.......
 
                               0
                                           0           0            0            0            0            3            0
 
February 2008.......
 
                               0
                                           0           0            0            0            0            0            0
 
Weighted Average
  Life (years)(1)...
 
                            1.78
                                       10.68        8.93         7.62         5.03         4.43         4.59         3.14
 
<CAPTION>
                                                           CLASS A-14
                                                       CERTIFICATES AT THE
                                                      FOLLOWING PERCENTAGES
                                                             OF SPA
    DISTRIBUTION
        DATE             0%         75%        135%         200%         300%         325%         500%
Initial.............
 
                            100        100         100          100          100          100          100
February 1994.......
 
                             99         98          97           96           90           90           81
February 1995.......
 
                             99         98          97           96           79           78           50
February 1996.......
 
                             99         98          97           96           66           63           50
February 1997.......
 
                             99         98          97           96           59           54           50
February 1998.......
 
                             99         98          97           96           55           50           39
February 1999.......
 
                             99         98          97           96           54           50           16
February 2000.......
 
                             99         98          82           81           38           35            1
February 2001.......
 
                             99         89          65           59           20           18            0
February 2002.......
 
                             99         65          53           40            7            6            0
February 2003.......
 
                             98         48          47           27            0            0            0
February 2004.......
 
                             69         48          42           19            0            0            0
February 2005.......
 
                             49         48          29           12            0            0            0
February 2006.......
 
                             49         32          16            4            0            0            0
February 2007.......
 
                             27         10           2            0            0            0            0
February 2008.......
 
                              0          0           0            0            0            0            0
Weighted Average
  Life (years)(1)...
 
                          12.39      10.82        9.72         8.68         5.20         4.98         3.42
</TABLE>
 
- ------------------
(1) The  weighted average  life of an  Offered Certificate is  determined by (i)
    multiplying the  amount  of  each distribution  in  reduction  of  principal
    balance  by  the number  of  years from  the date  of  the issuance  of such
    Certificate to the related  Distribution Date, (ii)  adding the results  and
    (iii)  dividing  the  sum by  the  aggregate distributions  in  reduction of
    principal balance referred to in clause (i).
 
                                      S-74
<PAGE>
 PERCENTAGE OF INITIAL CLASS A SUBCLASS PRINCIPAL BALANCE AND CLASS M PRINCIPAL
                            BALANCE OUTSTANDING FOR:
<TABLE>
<CAPTION>
                                                                                                                CLASS A-17
                                                      CLASS A-15 AND A-16                                  CERTIFICATES AT THE
                                                      CERTIFICATES AT THE                                       FOLLOWING
                                                     FOLLOWING PERCENTAGES                                     PERCENTAGES
                                                            OF SPA                                                OF SPA
<S>                   <C>        <C>        <C>        <C>          <C>          <C>          <C>          <C>        <C>
 
<CAPTION>
    DISTRIBUTION
        DATE             0%         75%       135%        200%         300%         325%         500%         0%         75%
<S>                   <C>        <C>        <C>        <C>          <C>          <C>          <C>          <C>        <C>
Initial.............
                            100        100        100         100          100          100          100
                                                                                                                 100        100
February 1994.......
                             99         96         94          91           80           80           62
                                                                                                                 108        108
February 1995.......
                             99         96         94          91           57           56            0
                                                                                                                 116        116
February 1996.......
                             99         96         94          91           33           26            0
                                                                                                                 125        125
February 1997.......
                             99         96         94          91           17            8            0
                                                                                                                 135        135
February 1998.......
                             99         96         94          91            9            0            0
                                                                                                                 145        145
February 1999.......
                             99         96         94          91            7            0            0
                                                                                                                 157        157
February 2000.......
                             99         96         94          91            6            0            0
                                                                                                                 169        169
February 2001.......
                             99         96         94          80            4            0            0
                                                                                                                 182        182
February 2002.......
                             99         96         94          68            2            0            0
                                                                                                                 196        196
February 2003.......
                             99         96         94          54            0            0            0
                                                                                                                 211        211
February 2004.......
                             99         96         84          39            0            0            0
                                                                                                                 228        228
February 2005.......
                             99         96         58          23            0            0            0
                                                                                                                 245        245
February 2006.......
                             99         65         32           9            0            0            0
                                                                                                                 264        264
February 2007.......
                             53         19          3           0            0            0            0
                                                                                                                 285        285
February 2008.......
                              0          0          0           0            0            0            0
                                                                                                                   0          0
Weighted Average
  Life (years)(1)...
                          13.93      12.93      11.71        9.62         2.67         2.21         1.17
                                                                                                               14.80      14.69
 
<CAPTION>
 
                                                                                             CLASS A-R AND A-LR
                                                                                            CERTIFICATES AT THE
                                                                                           FOLLOWING PERCENTAGES
                                                                                                   OF SPA
<S>                   <C>        <C>          <C>        <C>        <C>        <C>        <C>        <C>
    DISTRIBUTION
        DATE            135%       200%       300%        325%         500%         0%         75%       135%       300%
<S>                   <C>        <C>          <C>        <C>        <C>        <C>        <C>        <C>
Initial.............
 
                            100        100        100         100          100
                                                                                       100        100        100        100
 
February 1994.......
 
                            108        108        108          65            0
                                                                                        96         95         94         91
 
February 1995.......
 
                            116        116        116           0            0
                                                                                        93         88         85         77
 
February 1996.......
 
                            125        125        125           0            0
                                                                                        88         80         75         59
 
February 1997.......
 
                            135        135        135           0            0
                                                                                        84         73         65         45
 
February 1998.......
 
                            145        145        145           0            0
                                                                                        79         65         56         34
 
February 1999.......
 
                            157        157        157           0            0
                                                                                        73         58         47         26
 
February 2000.......
 
                            169        169        169           0            0
                                                                                        67         51         40         19
 
February 2001.......
 
                            182        182        182           0            0
                                                                                        61         44         33         14
 
February 2002.......
 
                            196        196        196           0            0
                                                                                        54         37         27         10
 
February 2003.......
 
                            211        211        211           0            0
                                                                                        47         30         21          7
 
February 2004.......
 
                            228        228        184           0            0
                                                                                        39         24         16          5
 
February 2005.......
 
                            245        245        155           0            0
                                                                                        30         18         11          3
 
February 2006.......
 
                            264        264        130           0            0
                                                                                        20         11          7          2
 
February 2007.......
 
                            285        183         70           0            0
                                                                                        10          5          3          1
 
February 2008.......
 
                              0          0          0           0            0
                                                                                         0          0          0          0
 
Weighted Average
  Life (years)(1)...
 
                          14.53      14.25      13.10        1.19         0.32
                                                                                      8.94       7.34       6.34       4.47
 
<CAPTION>
 
                                                                           CLASS M
                                                                     CERTIFICATES AT THE
                                                                    FOLLOWING PERCENTAGES
                                                                            OF SPA
    DISTRIBUTION
        DATE            325%        500%         0%         75%       135%       300%       325%        500%
Initial.............
 
                            100         100
                                                    100        100        100        100        100         100
February 1994.......
 
                             91          88
                                                     96         96         96         96         96          96
February 1995.......
 
                             75          67
                                                     93         93         93         93         93          93
February 1996.......
 
                             57          44
                                                     88         88         88         88         88          88
February 1997.......
 
                             43          28
                                                     84         84         84         84         84          84
February 1998.......
 
                             32          17
                                                     79         79         79         79         79          79
February 1999.......
 
                             23          10
                                                     73         72         71         69         69          66
February 2000.......
 
                             17           6
                                                     67         65         64         59         58          53
February 2001.......
 
                             12           4
                                                     61         58         55         47         46          39
February 2002.......
 
                              9           2
                                                     54         49         45         36         34          26
February 2003.......
 
                              6           1
                                                     47         40         36         25         24          16
February 2004.......
 
                              4           1
                                                     39         32         27         17         16           9
February 2005.......
 
                              2           0
                                                     30         23         19         11         10           5
February 2006.......
 
                              1           0
                                                     20         15         12          6          5           2
February 2007.......
 
                              1           0
                                                     10          7          5          2          2           1
February 2008.......
 
                              0           0
                                                      0          0          0          0          0           0
Weighted Average
  Life (years)(1)...
 
                           4.27        3.22
                                                   8.94       8.56       8.28       7.65       7.57        7.07
</TABLE>
 
- ------------------
(1) The weighted average  life of an  Offered Certificate is  determined by  (i)
    multiplying  the  amount  of  each distribution  in  reduction  of principal
    balance (net, in the  case of Accrual Certificates,  of any amount added  to
    the  principal balance  on the related  Distribution Date) by  the number of
    years from  the date  of the  issuance of  such Certificate  to the  related
    Distribution Date, (ii) adding the results and (iii) dividing the sum by the
    aggregate  distributions in  reduction of  principal balance  referred to in
    clause (i).
 
                                      S-75
<PAGE>
    Interest  on Mortgage Loans prepaid  in full is accrued  only to the date of
such prepayment in full. Any interest  shortfall with respect to prepayments  in
full  will be offset only  to the extent of the  aggregate of the Servicing Fees
relating to mortgagor payments  or other recoveries  distributed on the  related
Distribution  Date. Any excess of such shortfall above the Servicing Fees in any
month will  result in  a pro  rata reduction  of interest  distributable to  the
holders  of each Subclass  of Class A  Certificates, the holders  of the Class M
Certificates and the holders  of the Class  B Certificates. Interest  shortfalls
resulting from the timing of the receipt of partial principal prepayments on the
Mortgage  Loans or from net liquidation  proceeds in respect of Liquidated Loans
will not be offset by Servicing Fees but will be allocated first to the Class  B
Certificates  until  the Class  B Principal  Balance has  been reduced  to zero,
second to the Class M Certificates until the Class M Principal Balance has  been
reduced  to zero  and finally  to the  Subclasses of  Class A  Certificates. See
"Description of  the Certificates--Interest"  herein and  "Prepayment and  Yield
Considerations" in the Prospectus.
 
    Interest  accrued on the Class A and Class M Certificates will be reduced by
the amount  of  any interest  portions  of  Realized Losses  allocated  to  such
Certificates  as  described  under "Description  of  the Certificates--Interest"
herein. The yield on the Class A  Certificates, other than the Class A-5,  Class
A-6,  Class A-15 and Class A-16 Certificates,  and the Class M Certificates will
be less than the yield otherwise produced by their respective Pass-Through Rates
and the prices  at which  the Class  A and  Class M  Certificates are  purchased
because  the interest which accrues on the Mortgage Loans during each month will
not be passed  through to  Certificateholders until the  25th day  of the  month
following  the end of such month (or if such 25th day is not a business day, the
following business day).
 
SENSITIVITY OF THE CLASS A-3 CERTIFICATES
 
    THE YIELD  TO AN  INVESTOR ON  THE  CLASS A-3  CERTIFICATES WILL  BE  HIGHLY
SENSITIVE  TO BOTH THE TIMING OF RECEIPT  OF PREPAYMENTS AND THE OVERALL RATE OF
PRINCIPAL  PREPAYMENT  ON   THE  MORTGAGE  LOANS,   WHICH  RATE  MAY   FLUCTUATE
SIGNIFICANTLY  FROM  TIME  TO  TIME.  AN  INVESTOR  SHOULD  FULLY  CONSIDER  THE
ASSOCIATED RISKS, INCLUDING  THE RISK THAT  A RAPID RATE  OF PRINCIPAL  PAYMENTS
(INCLUDING  PREPAYMENTS) COULD RESULT IN THE FAILURE OF AN INVESTOR IN THE CLASS
A-3 CERTIFICATES TO FULLY RECOVER ITS INITIAL INVESTMENT.
 
    The following table indicates the sensitivity to various rates of prepayment
on the Mortgage  Loans of the  pre-tax yields  to maturity on  a corporate  bond
equivalent  ("CBE") basis of  the Class A-3  Certificates. Such calculations are
based on distributions made in accordance with "Description of the Certificates"
above, on the  assumptions described in  clauses (i) through  (vi) of the  first
full  paragraph on page S-71  and on the further  assumptions that (i) the Class
A-3 Certificates will be purchased on February 26, 1993 at an aggregate purchase
price of $2,896,635  which includes  accrued interest thereon  from February  1,
1993 to (but not including) February 26, 1993, (ii) the initial Class A Subclass
Principal Balance of each Subclass of Class A Certificates (other than the Class
A-3,  Class A-6 and Class  A-18 Certificates) will be as  set forth on the cover
hereof or  described  herein and  (iii)  distributions  to holders  of  Class  A
Certificates  will be  made on the  25th day  of each month  commencing in March
1993.
 
            SENSITIVITY OF THE CLASS A-3 CERTIFICATES TO PREPAYMENTS
 
<TABLE>
<CAPTION>
                                                                  PERCENTAGES OF SPA
                                     ----------------------------------------------------------------------------
                                         75%         135%         300%         325%         500%         560%
                                     -----------  -----------  -----------  -----------  -----------  -----------
<S>                                  <C>          <C>          <C>          <C>          <C>          <C>
Pre-Tax Yields (CBE)...............      19.93%       10.00%       10.00%       10.00%        3.09%       (0.01)%
</TABLE>
 
    The pre-tax yields set forth in  the preceding table were calculated by  (i)
determining the monthly discount rates which, when applied to the assumed stream
of  cash  flows  to be  paid  on the  Class  A-3 Certificates,  would  cause the
discounted present  value of  such assumed  stream  of cash  flows to  equal  an
assumed  aggregate purchase price  for the Class  A-3 Certificates of $2,896,635
which includes  accrued interest  thereon  from February  1,  1993 to  (but  not
including) February 26, 1993 and (ii) converting such monthly rates to corporate
bond equivalent rates. Such calculation does not take
 
                                      S-76
<PAGE>
into account the interest rates at which investors may be able to reinvest funds
received by them as distributions on the Class A-3 Certificates and consequently
does  not  purport to  reflect the  return on  any investment  in the  Class A-3
Certificates when such reinvestment rates are considered.
 
    NOTWITHSTANDING THE  ASSUMED PREPAYMENT  RATES  REFLECTED IN  THE  PRECEDING
TABLE,  IT IS HIGHLY UNLIKELY THAT THE  MORTGAGE LOANS WILL PREPAY AT A CONSTANT
RATE UNTIL MATURITY OR THAT  ALL OF THE MORTGAGE LOANS  WILL PREPAY AT THE  SAME
TIME.  The Mortgage Loans initially included in the Trust Estate may differ from
those currently expected to be included in the Trust Estate, and thereafter  may
be changed as a result of permitted substitutions. As a result of these factors,
the pre-tax yields on the Class A-3 Certificates are likely to differ from those
shown  in such table, even if all of  the Mortgage Loans prepay at the indicated
percentages of SPA.
 
SENSITIVITY OF THE CLASS A-6 AND CLASS A-16 CERTIFICATES
 
    THE YIELD  TO  INVESTORS  IN  THE CLASS  A-6  CERTIFICATES  WILL  BE  HIGHLY
SENSITIVE  TO THE  LEVEL OF  LIBOR FOR ANY  LIBOR BASED  INTEREST ACCRUAL PERIOD
COMMENCING ON OR AFTER FEBRUARY 25, 1995 AND TO THE RATE AND TIMING OF PRINCIPAL
PAYMENTS (INCLUDING PREPAYMENTS) OF THE MORTGAGE LOANS, WHICH RATE MAY FLUCTUATE
SIGNIFICANTLY FROM TIME  TO TIME. IN  PARTICULAR, HIGH LEVELS  OF LIBOR FOR  ANY
LIBOR  BASED INTEREST ACCRUAL PERIOD COMMENCING ON OR AFTER FEBRUARY 25, 1995 OR
FASTER THAN ANTICIPATED PRINCIPAL PREPAYMENTS ON THE MORTGAGE LOANS WILL HAVE  A
MATERIAL   NEGATIVE  EFFECT  ON  THE  YIELD   TO  INVESTORS  IN  THE  CLASS  A-6
CERTIFICATES. INVESTORS SHOULD  FULLY CONSIDER THE  ASSOCIATED RISKS,  INCLUDING
THE  RISK THAT  INVESTORS IN  THE CLASS A-6  CERTIFICATES MAY  NOT FULLY RECOVER
THEIR INITIAL INVESTMENTS.
 
    THE YIELD  TO  INVESTORS IN  THE  CLASS  A-16 CERTIFICATES  WILL  BE  HIGHLY
SENSITIVE  TO THE  LEVEL OF  LIBOR. HIGH  LEVELS OF  LIBOR WILL  HAVE A MATERIAL
NEGATIVE EFFECT ON THE YIELD TO INVESTORS IN THE CLASS A-16 CERTIFICATES.
 
    Since there can be no assurance that the level of LIBOR will correlate  with
the  levels of  prevailing mortgage  interest rates,  it is  possible that lower
prevailing  mortgage  rates,  which  might  be  expected  to  result  in  faster
prepayments, could occur concurrently with an increased level of LIBOR. However,
if,  as  generally  expected,  higher  mortgage  rates  and,  accordingly, lower
prepayment rates, were to  occur concurrently with an  increased level of  LIBOR
(with  respect  to the  Class  A-6 Certificates,  for  any LIBOR  Based Interest
Accrual Period commencing on or after February 25, 1995), the Pass-Through Rates
of the Class A-6 and Class A-16  Certificates would be reduced at the same  time
that the rate of distributions in reduction of principal balances may be reduced
resulting in the extension of the weighted average lives of such Subclasses.
 
    To  illustrate  the  significance  of  changes in  the  level  of  LIBOR and
prepayments on the Class A-6 and  Class A-16 Certificates, the following  tables
indicate  the pre-tax yields to maturity  (on a corporate bond equivalent basis)
under the  assumptions specified  in the  following paragraph  at the  different
constant  percentages of SPA and  the constant levels of  LIBOR indicated. It is
not likely that the Mortgage Loans will prepay at a CONSTANT level of SPA  until
maturity,  that all of the  Mortgage Loans will prepay at  the same rate or that
the level  of LIBOR  will remain  constant. As  discussed above,  the timing  of
changes   in  the  rate  of  prepayments  may  significantly  affect  the  total
distributions received, the date of receipt of such distributions and the actual
yield to maturity to an investor in a Class A-6 or Class A-16 Certificate,  even
if  the average rate of principal prepayments is consistent with such investor's
expectations. Moreover, the timing of changes  in the level of LIBOR may  affect
the  actual  yield to  maturity to  an investor  in  a Class  A-6 or  Class A-16
Certificate even  if  the  average  level is  consistent  with  such  investor's
expectation.
 
    The  following tables have been prepared on the basis of the assumptions set
forth in clauses  (i) through  (vi) of  the first  full paragraph  on page  S-71
hereof  and the additional assumptions that (i) the aggregate purchase price for
the Class A-6 Certificate is $6,695,947 and the aggregate purchase price for the
Class A-16 Certificate  is $7,554,106 which  prices include one  day of  accrued
interest,  (ii) such purchase prices are paid  on February 26, 1993 and (iii) on
the Rate Determination Date  occurring in March 1993  with respect to the  Class
A-16   Certificates  and  occurring  in  February   1995  with  respect  to  the
 
                                      S-77
<PAGE>
Class A-6 Certificates and each Rate Determination Date thereafter, LIBOR is  at
the level specified. The Mortgage Loans will not have all of the characteristics
assumed  above and there can be no assurance that the Mortgage Loans will prepay
at any of the constant rates shown in the table or at any other particular rate,
that the pre-tax yield to maturity on  the Class A-6 or Class A-16  Certificates
will correspond to any of the amounts shown herein, that the level of LIBOR will
correspond  to the levels shown herein or  that the aggregate purchase prices of
the Class A-6 and Class A-16 Certificates, respectively, will be as assumed. The
tables do not constitute a representation as to the correlation of any level  of
LIBOR  with any rate  of prepayments on  the Mortgage Loans.  Each investor must
make an independent decision as to the appropriate prepayment assumptions to  be
used  and the appropriate levels  of LIBOR to be  assumed in deciding whether or
not to purchase a Class A-6 or Class A-16 Certificate.
 
    The pre-tax yields set forth in the following tables were calculated by  (i)
determining the monthly discount rates which, when applied to the assumed stream
of  cash flows to  be paid on the  Class A-6 or Class  A-16 Certificates, as the
case may be, would cause the discounted present value of such assumed stream  of
cash  flows  to equal  an assumed  aggregate  purchase price  for the  Class A-6
Certificates of $6,695,947 and an assumed aggregate purchase price for the Class
A-16 Certificates of $7,554,106 which prices include one day of accrued interest
and (ii) converting such monthly rates to corporate bond equivalent rates.  Such
calculation does not take into account the interest rates at which investors may
be  able to reinvest funds received by them as distributions on the Class A-6 or
Class A-16 Certificates and consequently does not purport to reflect the  return
on any investment in Class A-6 or Class A-16 Certificates when such reinvestment
rates are considered.
 
       SENSITIVITY OF THE CLASS A-6 CERTIFICATES TO PREPAYMENTS AND LIBOR
                                 PRE-TAX YIELDS
 
<TABLE>
<CAPTION>
                                                                    PERCENTAGES OF SPA
                                       ----------------------------------------------------------------------------
           LEVELS OF LIBOR                 0%           75%         135%         300%         325%         500%
- -------------------------------------  -----------  -----------  -----------  -----------  -----------  -----------
<S>                                    <C>          <C>          <C>          <C>          <C>          <C>
1.1875%..............................      44.23%       36.50%       29.98%       29.98%       29.98%       21.79%
3.1875%..............................      37.05%       29.35%       23.00%       23.00%       23.00%       14.87%
5.1875%..............................      28.00%       20.34%       14.26%       14.26%       14.26%        6.33%
7.1875%..............................      15.10%        7.62%        2.05%        2.05%        2.05%       (5.24)%
8.1875%..............................       5.06%       (2.12)%      (7.07)%      (7.07)%      (7.07)%     (13.38)%
9.1875%..............................     (16.17)%     (20.94)%     (23.34)%     (23.34)%     (23.34)%     (25.68)%
9.3502% and above....................     (28.43)%     (28.43)%     (28.62)%     (28.62)%     (28.62)%     (28.62)%
</TABLE>
 
      SENSITIVITY OF THE CLASS A-16 CERTIFICATES TO PREPAYMENTS AND LIBOR
                                 PRE-TAX YIELDS
 
<TABLE>
<CAPTION>
                                                                  PERCENTAGES OF SPA
                                      ---------------------------------------------------------------------------
          LEVELS OF LIBOR                0%         75%       135%       200%       300%       325%       500%
- ------------------------------------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                   <C>        <C>        <C>        <C>        <C>        <C>        <C>
1.1875%.............................    25.31%     25.30%     25.29%     25.27%     24.89%     24.82%     24.32%
3.1875%.............................    18.23%     18.23%     18.22%     18.21%     18.00%     17.96%     17.68%
5.1875%.............................    11.28%     11.28%     11.28%     11.27%     11.23%     11.22%     11.16%
7.1875%.............................     4.45%      4.46%      4.46%      4.47%      4.58%      4.61%      4.77%
8.1875%.............................     1.10%      1.10%      1.11%      1.12%      1.30%      1.35%      1.62%
8.5000% and above...................     0.05%      0.06%      0.06%      0.08%      0.28%      0.34%      0.65%
</TABLE>
 
                                      S-78
<PAGE>
                        POOLING AND SERVICING AGREEMENT
 
GENERAL
 
    The  Series 1993-9  Certificates will  be issued  pursuant to  a Pooling and
Servicing Agreement to be dated as of the date of initial issuance of the Series
1993-9 Certificates (the  "Pooling and Servicing  Agreement") among the  Seller,
the  Servicer and the Trustee. Reference is made to the Prospectus for important
additional information regarding  the terms  and conditions of  the Pooling  and
Servicing  Agreement and the Series 1993-9 Certificates. See "Description of the
Certificates," "Servicing of the Mortgage Loans" and "The Pooling and  Servicing
Agreement"  in the Prospectus. Distributions  (other than the final distribution
in retirement of the Class  A Certificates of each Subclass  and of the Class  M
Certificates) will be made by check mailed to the address of the person entitled
thereto  as it appears on the Certificate Register. However, with respect to any
holder of  an  Offered  Certificate  (other  than  a  Class  A-3  or  Class  A-6
Certificate)  evidencing at least a $5,000,000 initial principal balance, or any
holder of a Class A-3 or Class A-6 Certificate evidencing at least a  $5,000,000
initial Class A-3 or Class A-6 Notional Amount, respectively, distributions will
be  made  on the  Distribution Date  by wire  transfer in  immediately available
funds, provided that the Servicer, or the  paying agent acting on behalf of  the
Servicer,  shall have  been furnished  with appropriate  wiring instructions not
less than seven business days prior to the related Distribution Date. The  final
distribution  in respect of  each Class A  and Class M  Certificate will be made
only upon presentation and surrender of such  Class A or Class M Certificate  at
the  office or agency appointed by the  Trustee specified in the notice of final
distribution with respect to the related Subclass or Class.
 
    Unless Definitive Certificates are issued  as described above, the  Servicer
and  the Trustee will treat DTC as the Holder of the Book-Entry Certificates for
all purposes, including  making distributions  thereon and  taking actions  with
respect  thereto. DTC will make book-entry transfers among its participants with
respect to the Book-Entry  Certificates; it will  also receive distributions  on
the  Book-Entry Certificates from the Trustee  and transmit them to participants
for distribution to Beneficial Owners or their nominees.
 
VOTING
 
    With respect  to  any provisions  of  the Pooling  and  Servicing  Agreement
providing  for the  action, consent  or approval  of the  holders of  all Series
1993-9 Certificates evidencing specified Voting  Interests in the Trust  Estate,
the  holders of the  Class A Certificates  will collectively be  entitled to the
then applicable Class A Percentage, and the holders of the Class M  Certificates
will collectively be entitled to the then applicable percentage of the aggregate
Voting  Interest  represented  by  all Series  1993-9  Certificates  obtained by
dividing the then-outstanding Class M Principal Balance by the sum of the  then-
outstanding  Class A  Principal Balance, Class  M Principal Balance  and Class B
Principal Balance and the holders of the Class B Certificates will  collectively
be  entitled to the balance of the  aggregate Voting Interest represented by all
Series 1993-9  Certificates.  The aggregate  Voting  Interests of  the  Class  A
Certificates,  other than the Class A-3,  Class A-6 and Class A-18 Certificates,
on any date will be  97% of the Class A  Percentage on such date. The  aggregate
Voting  Interest of  the Class A-3  Certificates on any  date will be  1% of the
Class A Percentage on such date. The aggregate Voting Interests of the Class A-6
Certificates on any date will be 1% of the Class A Percentage on such date.  The
aggregate  Voting Interest of the Class A-18 Certificates on any date will be 1%
of the Class A Percentage on such  date. The aggregate Voting Interests of  each
Subclass  of Class A Certificates, other than the Class A-3, Class A-6 and Class
A-18 Certificates, on any date  will be equal to the  product of (a) 97% of  the
Class  A Percentage on such  date and (b) the  fraction obtained by dividing the
Class A  Subclass  Principal  Balance of  such  Subclass  on such  date  by  the
aggregate  Class A Subclass Principal Balance  of the Class A Certificates other
than the Class A-18 Certificates on such date. The aggregate Voting Interests of
the Class M Certificates on  any date will be  100% of the percentage  described
above  for the Class  M Certificates on  such date. Each  Certificateholder of a
Class or Subclass will have a Voting Interest equal to the product of the Voting
Interest to  which such  Class  or Subclass  is  collectively entitled  and  the
Percentage  Interest  in such  Class or  Subclass  represented by  such holder's
Certificates. With  respect  to any  provisions  of the  Pooling  and  Servicing
Agreement providing for action, consent or approval of each Class or Subclass of
Certificates   or  specified   Classes  or  Subclasses   of  Certificates,  each
Certificateholder of a
 
                                      S-79
<PAGE>
Subclass will have  a Voting Interest  in such Subclass  equal to such  holder's
Percentage  Interest in such Subclass. Unless Definitive Certificates are issued
as described above,  Beneficial Owners of  Book-Entry Certificates may  exercise
their voting rights only through Participants.
 
TRUSTEE
 
    The  Trustee for the Series 1993-9 Certificates will be First Trust National
Association, a national banking association.  The Corporate Trust Office of  the
Trustee is located at 180 East Fifth Street, St. Paul, Minnesota 55101. See "The
Pooling and Servicing Agreement--The Trustee" in the Prospectus.
 
SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
    The Servicing Fee paid to the Servicer with respect to the servicing of each
Mortgage  Loan  included  in  the  Trust  Estate  underlying  the  Series 1993-9
Certificates and administrative services provided by it will be 0.20% per  annum
of  the  outstanding principal  balance  of each  such  Mortgage Loan.  No Fixed
Retained Yield (as defined in the  Prospectus) will be retained with respect  to
any  of the Mortgage Loans. See "Servicing of the Mortgage Loans--Fixed Retained
Yield, Servicing Compensation  and Payment  of Expenses" in  the Prospectus  for
information  regarding other possible compensation to the Servicer. The Servicer
will pay all routine expenses  incurred in connection with its  responsibilities
under  the  Pooling  and  Servicing  Agreement,  subject  to  certain  rights of
reimbursement as  described in  the  Prospectus. The  servicing fees  and  other
expenses  of the Upper-Tier REMIC and the  Lower-Tier REMIC will be allocated to
the  holders  of  the  Class   A-R  Certificate  and  Class  A-LR   Certificate,
respectively, who are individuals, estates, or trusts (whether such Certificates
are  held directly or through certain pass-through entities) as additional gross
income without a corresponding distribution of  cash, and any such investor  (or
its  owners, in the case of a pass-through entity) may be limited in its ability
to deduct such expenses for regular tax  purposes and may not be able to  deduct
such  expenses to  any extent for  alternative minimum tax  purposes. Unless and
until applicable authority provides otherwise,  the Seller intends to treat  all
such  expenses as incurred by the  Lower-Tier REMIC and, therefore, as allocable
to the holder  of the Class  A-LR Certificate. See  "Certain Federal Income  Tax
Consequences--Federal Income Tax Consequences for REMIC
Certificates--Limitations on Deduction of Certain Expenses" in the Prospectus.
 
OPTIONAL TERMINATION
 
    At its option, the Servicer may purchase from the Trust Estate all remaining
Mortgage  Loans,  and  thereby  effect early  retirement  of  the  Series 1993-9
Certificates, on any Distribution Date when the Pool Scheduled Principal Balance
is less  than 10%  of the  Cut-Off Date  Aggregate Principal  Balance. Any  such
purchase  will be made only in connection  with a "qualified liquidation" of the
Upper-Tier REMIC  and  the  Lower-Tier  REMIC  within  the  meaning  of  Section
860F(a)(4)(A)  of the Code. The purchase price  will, generally, be equal to the
greater of (i) the unpaid principal balance of each Mortgage Loan plus the  fair
market  value of  other property in  the Trust  Estate and (ii)  the fair market
value of the  Trust Estate's assets  plus, in each  case, accrued interest.  See
"The  Pooling and Servicing Agreement--Termination;  Purchase of Mortgage Loans"
in the Prospectus.
 
                       FEDERAL INCOME TAX CONSIDERATIONS
 
    For federal  income tax  purposes,  the Trust  Estate  will consist  of  two
segregated  asset groupings, each of  which will qualify as  a REMIC for federal
income tax  purposes. One  REMIC  (the "Lower-Tier  REMIC") will  issue  certain
uncertificated  interests (each, a "Lower-Tier REMIC Regular Interest"), each of
which will be designated as a regular interest in the Lower-Tier REMIC, and  the
Class A-LR Certificate, which will be designated as the residual interest in the
Lower-Tier  REMIC. The assets of the  Lower-Tier REMIC will include the Mortgage
Loans, together with the amounts held by  the Servicer in a separate account  in
which  collections on  the Mortgage  Loans will  be deposited  (the "Certificate
Account"),  the  hazard  insurance  policies  and  primary  mortgage   insurance
policies,  if any, relating to the Mortgage Loans and any property which secured
a Mortgage Loan which is acquired by foreclosure or deed in lieu of foreclosure.
 
                                      S-80
<PAGE>
    The second REMIC (the "Upper-Tier REMIC")  will issue all Subclasses of  the
Class A Certificates other than the Class A-LR Certificate. 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 A-11, Class  A-12, Class A-13,  Class A-14, Class  A-15,
Class   A-16  and  Class   A-17  Certificates  and   the  Class  M  Certificates
(collectively,  the  "Regular  Certificates"),  together  with  the  Class  A-18
Certificates  and  the  Class  B Certificates,  will  be  designated  as regular
interests in  the  Upper-Tier REMIC,  and  the  Class A-R  Certificate  will  be
designated  as  the  residual  interest in  the  Upper-Tier  REMIC.  The regular
interests and the  residual interest  in the  Upper-Tier REMIC  are referred  to
herein  collectively as the  "Upper-Tier Certificates." The  Class A-R and Class
A-LR Certificates are  "Residual Certificates" for  purposes of the  Prospectus.
The  assets of the  Upper-Tier REMIC will  include the uncertificated Lower-Tier
REMIC Regular Interests  and a separate  account in which  distributions on  the
uncertificated  Lower-Tier  REMIC  Regular  Interests  will  be  deposited.  The
aggregate amount  distributed to  the holders  of the  Upper-Tier  Certificates,
payable from such separate account, will be equal to the aggregate distributions
in  respect of the Mortgage Loans on the uncertificated Lower-Tier REMIC Regular
Interests.
 
    The Offered Certificates will be treated as "qualifying real property loans"
for mutual savings banks and  domestic building and loan associations,  "regular
or  residual interests in a REMIC"  for domestic building and loan associations,
and "real  estate assets"  for  real estate  investment  trusts, to  the  extent
described in the Prospectus.
 
REGULAR CERTIFICATES
 
    The  Regular Certificates generally will be treated as newly originated debt
instruments for federal income tax purposes.  Beneficial owners (or in the  case
of  Definitive  Certificates,  holders)  of  the  Regular  Certificates  will be
required to report income  on such Certificates in  accordance with the  accrual
method  of accounting. The Class A-17  Certificates will be issued with original
issue discount  in  an  amount equal  to  the  excess of  all  distributions  of
principal  and interest  thereon (whether current  or accrued)  over their issue
price (including  accrued  interest). It  is  anticipated that  the  Class  A-16
Certificates  will be issued with original issue discount for federal income tax
purposes, in an amount equal to the  excess of the initial principal balance  of
such  Subclass over their issue price. It  is further anticipated that the Class
A-1, Class A-2, Class A-4,  Class A-7, Class A-8,  Class A-9, Class A-10,  Class
A-11,  Class A-12, Class A-13,  Class A-14, Class A-15  and Class M Certificates
will be issued at a premium for  federal income tax purposes. Based on  proposed
Treasury  regulations, original  issue discount  with respect  to the  Class A-5
Certificates will  be  computed  assuming  that  interest  payments  distributed
thereon  after February  25, 1995  will be  at a  level which  will result  in a
reasonable assumed overall yield for the Class A-5 Certificates. As a result,  a
portion  of the assumed interest  payments made after February  25, 1995 will be
included  in  the  stated  redemption  price  at  maturity  of  the  Class   A-5
Certificates,  thereby causing the Class A-5 Certificates to be considered to be
issued with original issue discount for federal tax purposes.
 
    The Class A-3 and Class A-6 Certificates will be issued with original  issue
discount  in an  amount equal  to the  excess of  all distributions  of interest
thereon over their  issue prices  (including accrued  interest). Any  "negative"
amounts  of original issue discount attributable  to rapid prepayments would not
be deductible currently, but most likely would be offset against future positive
accruals of original issue discount, if any. Finally, the holder of a Class  A-3
or  Class A-6 Certificate may  be entitled to a loss  deduction to the extent it
becomes certain that such holder will not recover a portion of its basis in such
Certificate, assuming no further prepayments. The Class A-18 Certificates, which
are not  offered hereby,  also will  be treated  as issued  with original  issue
discount for federal income tax purposes.
 
    The  Prepayment Assumption (as defined in the Prospectus) that is to be used
in determining the rate  of accrual of original  issue discount and whether  the
original  issue  discount is  considered DE  MINIMIS,  and that  may be  used to
amortize premium, will be calculated using  300% SPA. No representation is  made
as to the actual rate at which the Mortgage Loans will prepay.
 
RESIDUAL CERTIFICATES
 
    The  holders of the Class  A-R and Class A-LR  Certificates must include the
taxable income  or  loss of  the  Upper-Tier  REMIC and  the  Lower-Tier  REMIC,
respectively, in determining their federal taxable
 
                                      S-81
<PAGE>
income.  The Class A-R  and Class A-LR Certificates  will remain outstanding for
federal income tax purposes until there  are no Certificates of any other  Class
outstanding.   PROSPECTIVE   INVESTORS  ARE   CAUTIONED   THAT  THE   CLASS  A-R
CERTIFICATEHOLDER'S REMIC TAXABLE INCOME AND THE TAX LIABILITY THEREON WILL, AND
THE CLASS A-LR CERTIFICATEHOLDER'S  REMIC TAXABLE INCOME  AND THE TAX  LIABILITY
THEREON  MAY, EXCEED CASH DISTRIBUTIONS TO  SUCH HOLDERS DURING CERTAIN PERIODS,
IN WHICH EVENT THE HOLDERS THEREOF  MUST HAVE SUFFICIENT ALTERNATIVE SOURCES  OF
FUNDS  TO PAY SUCH TAX  LIABILITY. Furthermore, it is  anticipated that all or a
substantial portion of the taxable income of the Upper-Tier REMIC and Lower-Tier
REMIC includible by the  holders of the Class  A-R and Class A-LR  Certificates,
respectively, will be treated as "excess inclusion" income, resulting in (i) the
inability  of such holder to use net operating losses to offset such income from
the respective REMIC, (ii) the treatment  of such income as "unrelated  business
taxable  income" to certain holders who  are otherwise tax-exempt, and (iii) the
treatment of such income as subject  to 30% withholding tax to certain  non-U.S.
investors, with no exemption or treaty reduction.
 
    Under  the REMIC Regulations, since  the fair market value  of the Class A-R
and Class A-LR Certificates will not exceed  2% of the fair market value of  the
Upper-Tier  REMIC and  Lower-Tier REMIC, respectively,  the Class  A-R and Class
A-LR Certificates will  not have  "significant value,"  and thrift  institutions
will  not be permitted to offset their  net operating losses against such excess
inclusion income.  In  addition, under  the  REMIC Regulations,  the  Class  A-R
Certificate will, and the Class A-LR Certificate may, be considered "noneconomic
residual interests," with the result that transfers thereof would be disregarded
for federal income tax purposes if any significant purpose of the transferor was
to  impede  the assessment  or collection  of  tax. Accordingly,  the transferee
affidavit used for transfers of the  Class A-R and Class A-LR Certificates  will
require  the transferee to affirm that it (i) historically has paid its debts as
they have come due and intends to do so in the future, (ii) understands that  it
may  incur  tax  liabilities  with  respect  to  the  Class  A-R  or  Class A-LR
Certificate in excess of any cash flows generated thereby, (iii) intends to  pay
taxes  associated with holding the  Class A-R or Class  A-LR Certificate as such
taxes become  due  and (iv)  will  not transfer  the  Class A-R  or  Class  A-LR
Certificate  to any person or entity that  does not provide a similar affidavit.
The transferor must certify in  writing to the Trustee that,  as of the date  of
transfer,  it had no knowledge  or reason to know  that the affirmations made by
the transferee pursuant to the preceding sentence were false. Finally, the Class
A-R and Class A-LR Certificates generally may not be transferred to a person who
is  not  a   U.S.  Person  (as   defined  herein).  See   "Description  of   the
Certificates--Restrictions  on Transfer of the Class  A-6, Class A-R, Class A-LR
and  Class   M   Certificates"   herein  and   "Certain   Federal   Income   Tax
Consequences--Federal  Income Tax Consequences  for REMIC Certificates--Taxation
of the  Residual  Certificates--Limitations  on Offset  or  Exemption  of  REMIC
Income"  and "--Tax-Related Restrictions on  Transfer of Residual Certificates--
Noneconomic Residual Interests" in the Prospectus.
 
    Under proposed Treasury regulations relating to original issue discount, the
Lower-Tier REMIC Regular Interests would be treated as a single debt  instrument
for  original issue discount  purposes because they  will be issued  in a single
transaction to a single holder (the Upper-Tier REMIC). Although there can be  no
assurance  that  final  regulations  will apply  this  aggregation  rule  to the
Lower-Tier REMIC  Regular  Interests,  the Servicer  intends  to  calculate  the
taxable  income (or net loss) of the  Upper-Tier REMIC and Lower-Tier REMIC (and
to report to the  Class A-R and Class  A-LR Certificateholders) by treating  the
Lower-Tier REMIC Regular Interests as a single debt instrument. A failure of the
Lower-Tier  REMIC Regular Interests  to qualify as a  single debt instrument for
original issue discount  purposes could have  a material adverse  impact on  the
timing of taxable income to the Class A-LR Certificateholder.
 
    An  individual,  trust or  estate that  holds  the Class  A-R or  Class A-LR
Certificate (whether such  Certificate is  held directly  or indirectly  through
certain  pass-through  entities)  also  may have  additional  gross  income with
respect to, but may be subject to limitations on the deductibility of, Servicing
Fees on the Mortgage Loans and other administrative expenses properly  allocable
to  such Certificate in  computing such holder's regular  tax liability, and may
not be able  to deduct such  fees or expenses  to any extent  in computing  such
holder's  alternative  minimum tax  liability. In  addition,  some portion  of a
purchaser's basis, if any, in the Class A-R or Class A-LR Certificate may not be
recovered until termination of the
 
                                      S-82
<PAGE>
respective REMIC.  Furthermore,  the  federal income  tax  consequences  of  any
consideration  paid to a transferee  on a transfer of a  Class A-R or Class A-LR
Certificate are unclear. The  preamble to the  REMIC Regulations indicates  that
the  Internal Revenue Service anticipates providing guidance with respect to the
federal tax treatment of such consideration. Any transferee of the Class A-R  or
Class  A-LR  Certificate receiving  such  consideration should  consult  its tax
advisors.
 
    DUE TO  THE  SPECIAL TAX  TREATMENT  OF RESIDUAL  INTERESTS,  THE  EFFECTIVE
AFTER-TAX   RETURN  OF  THE  CLASS  A-R  AND  CLASS  A-LR  CERTIFICATES  MAY  BE
SIGNIFICANTLY LOWER THAN  WOULD BE  THE CASE  IF THE  CLASS A-R  AND CLASS  A-LR
CERTIFICATES WERE TAXED AS DEBT INSTRUMENTS.
 
                              ERISA CONSIDERATIONS
 
    Neither  the Class  A-R Certificate  nor the  Class A-LR  Certificate may be
purchased by or  transferred to  any person which  is an  employee benefit  plan
within  the meaning of  Section 3(3) of the  Employee Retirement Income Security
Act of  1974,  as amended  ("ERISA"),  and which  is  subject to  the  fiduciary
responsibility  rules of Sections 401-414 of ERISA  or Code Section 4975, or any
person utilizing the  assets of such  employee benefit plan  (an "ERISA  Plan").
Accordingly,   the  following  discussion  does   not  purport  to  discuss  the
considerations under ERISA or  Code Section 4975 with  respect to the  purchase,
acquisition or resale of the Class A-R or Class A-LR Certificate.
 
    In  addition, under  current law  the purchase  and holding  of the  Class M
Certificates by  or  on  behalf of  an  ERISA  Plan may  result  in  "prohibited
transactions" within the meaning of ERISA and Code Section 4975. Transfer of the
Class  M Certificates  will not  be made  unless the  transferee (i)  executes a
representation letter in form and substance satisfactory to the Trustee  stating
that it is not, and is not acting on behalf of, any such ERISA Plan or using the
assets  of  any such  ERISA Plan  to effect  such purchase  or (ii)  provides an
opinion of counsel in  form and substance satisfactory  to the Trustee that  the
purchase  or holding of the  Class M Certificates by or  on behalf of such ERISA
Plan will not result in the assets of the Trust Estate being deemed to be  "plan
assets"  and subject to  the prohibited transaction provisions  of ERISA and the
Code and  will not  subject  the Servicer,  the Seller  or  the Trustee  to  any
obligation  in  addition  to  those  undertaken  in  the  Pooling  and Servicing
Agreement. The  Class  M Certificates  will  contain a  legend  describing  such
restrictions  on transfer and  the Pooling and  Servicing Agreement will provide
that any  attempted  or  purported  transfer  in  violation  of  these  transfer
restrictions  will be  null and void  and will  vest no rights  in any purported
transferee. Accordingly, the  following discussion does  not purport to  discuss
the  considerations  under  ERISA  or  Code Section  4975  with  respect  to the
purchase, acquisition or resale of the Class M Certificates.
 
    As described in the Prospectus  under "ERISA Considerations," ERISA and  the
Code  impose certain duties and restrictions  on ERISA Plans and certain persons
who perform services for ERISA  Plans. For example, unless exempted,  investment
by  an ERISA Plan in  the Offered Certificates may constitute  or give rise to a
prohibited transaction under  ERISA or  the Code. There  are certain  exemptions
issued  by  the  United States  Department  of  Labor (the  "DOL")  that  may be
applicable to  an investment  by  an ERISA  Plan  in the  Offered  Certificates,
including the individual administrative exemption described below and Prohibited
Transaction  Class Exemption 83-1 ("PTE 83-1").  For a further discussion of the
individual administrative  exemption  and  PTE  83-1,  including  the  necessary
conditions  to their applicability, and other important factors to be considered
by an ERISA Plan contemplating investing in the Offered Certificates, see "ERISA
Considerations" in the Prospectus.
 
    On  May  24,  1990,  the  DOL  issued  to  the  Underwriter  an   individual
administrative  exemption, Prohibited Transaction Exemption  90-30, 55 Fed. Reg.
21461 (the "Exemption"),  from certain  of the prohibited  transaction rules  of
ERISA  with  respect to  the initial  purchase, the  holding and  the subsequent
resale by an  ERISA Plan of  certificates in pass-through  trusts that meet  the
conditions  and requirements of the Exemption.  The Exemption might apply to the
acquisition, holding and resale  of the Offered Certificates  by an ERISA  Plan,
provided that specified conditions are met.
 
                                      S-83
<PAGE>
    Among  the conditions which would have to  be satisfied for the Exemption to
apply to the acquisition by  an ERISA Plan of  the Offered Certificates, is  the
condition  that  the ERISA  Plan  investing in  the  Offered Certificates  be 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 "Securities Act").
 
    Before purchasing  an Offered  Certificate,  a fiduciary  of an  ERISA  Plan
should make its own determination as to the availability of the exemptive relief
provided   in  the  Exemption  or  the  availability  of  any  other  prohibited
transaction exemptions (including PTE 83-1),  and whether the conditions of  any
such  exemption will be applicable to the Offered Certificates. Any fiduciary of
an ERISA Plan considering whether to purchase an Offered Certificate should also
carefully review with its own legal advisors the applicability of the  fiduciary
duty  and  prohibited  transaction provisions  of  ERISA  and the  Code  to such
investment. See "ERISA Considerations" in the Prospectus.
 
                                LEGAL INVESTMENT
 
    The  Offered  Certificates  constitute  "mortgage  related  securities"  for
purposes  of  the  Secondary  Mortgage  Market  Enhancement  Act  of  1984  (the
"Enhancement Act") so long as  they are rated in one  of the two highest  rating
categories   by   at  least   one   nationally  recognized   statistical  rating
organization. As  such,  the  Offered Certificates  are  legal  investments  for
certain  entities  to  the  extent provided  in  the  Enhancement  Act. However,
institutions subject to the jurisdiction of the Office of the Comptroller of the
Currency, the Board  of Governors  of the  Federal Reserve  System, the  Federal
Deposit  Insurance Corporation, the  Office of Thrift  Supervision, the National
Credit Union Administration  or state  banking or  insurance authorities  should
review  applicable rules, supervisory policies  and guidelines of these agencies
before purchasing any of the Offered Certificates, as certain Subclasses of  the
Class  A Certificates or the Class M Certificates may be deemed to be unsuitable
investments under  one or  more  of these  rules,  policies and  guidelines  and
whether certain restrictions may apply to investments in other Subclasses of the
Class  A Certificates or the Class M  Certificates. It should also be noted that
certain states recently  have enacted,  or have  proposed enacting,  legislation
limiting  to  varying extents  the ability  of  certain entities  (in particular
insurance companies) to invest in mortgage related securities. Investors  should
consult  with their own legal advisors in determining whether and to what extent
Offered Certificates constitute legal investments for such investors. See "Legal
Investment" in the Prospectus.
 
                                SECONDARY MARKET
 
    There will not  be any market  for the Offered  Certificates offered  hereby
prior  to the issuance thereof. The Underwriter intends to act as a market maker
in the Offered  Certificates, subject  to applicable provisions  of federal  and
state  securities  laws  and  other regulatory  requirements,  but  is  under no
obligation to do so. There  can be no assurance that  a secondary market in  the
Offered  Certificates will develop  or, if such  a market does  develop, that it
will provide holders of Offered Certificates with liquidity of investment at any
particular time or for the life of the Offered Certificates.
 
                                  UNDERWRITING
 
    Subject to the terms and conditions  of the underwriting agreement dated  as
of  January 28, 1993  (the "Underwriting Agreement") among  the Seller, PHMC and
Bear, Stearns  &  Co. Inc.,  as  underwriter (the  "Underwriter"),  the  Offered
Certificates  offered  hereby  are  being  purchased  from  the  Seller  by  the
Underwriter upon issuance. The Underwriter is  committed to purchase all of  the
Offered  Certificates if any Offered Certificates are purchased. The Underwriter
has advised the Seller that it proposes to offer the Offered Certificates,  from
time  to  time,  for sale  in  negotiated  transactions or  otherwise  at prices
determined at the  time of sale.  Proceeds to the  Seller from the  sale of  the
Offered  Certificates  will be  101.71875%  of the  aggregate  initial principal
balance of the  Offered Certificates, plus  accrued interest thereon  and on  an
amount  equal  to the  aggregate  initial principal  balance  of the  Class A-18
Certificates at the rate of  7.50% per annum from February  1, 1993 to (but  not
including)  February 26, 1993, before deducting  expenses payable by the Seller.
The Underwriter, which is not an affiliate of the Seller, has advised the Seller
that the Underwriter  has not allocated  the purchase price  paid to the  Seller
among the
 
                                      S-84
<PAGE>
Subclasses  or Classes of Offered Certificates.  The Underwriter and any dealers
that participate  with  the  Underwriter  in the  distribution  of  the  Offered
Certificates  may be deemed to be underwriters, and any discounts or commissions
received by them and any  profit on the resale  of Offered Certificates by  them
may  be deemed to be underwriting discounts or commissions, under the Securities
Act.
 
    The Underwriting Agreement provides that the Seller and PHMC will  indemnify
the  Underwriter against certain  civil liabilities under  the Securities Act or
contribute to payments which the Underwriter may be required to make in  respect
thereof.
 
                                 LEGAL MATTERS
 
    Certain  legal matters in  connection with the  Offered Certificates offered
hereby will be passed upon for the Seller by Cadwalader, Wickersham & Taft,  New
York, New York, and for the Underwriter by Brown & Wood, New York, New York.
 
                                USE OF PROCEEDS
 
    The  net proceeds to be  received from the sale  of the Offered Certificates
offered hereby will be applied  by the Seller to the  purchase from PHMC of  the
Mortgage  Loans represented  by the Series  1993-9 Certificates.  It is expected
that PHMC will  use the  proceeds from  the sale of  the Mortgage  Loans to  the
Seller  for its  general business  purposes, including,  without limitation, the
origination or acquisition of new mortgage loans and the repayment of borrowings
incurred to  finance  the  origination  or acquisition  of  the  Mortgage  Loans
underlying the Series 1993-9 Certificates.
 
                                    RATINGS
 
    It  is a  condition to the  issuance of  the Class A  Certificates that each
Subclass will have  been rated  "Aaa" by  Moody's and "AAA"  by Fitch.  It is  a
condition  to the issuance of the Class M Certificates that they shall have been
rated "Aa2"  by  Moody's  and  "AA"  by  Fitch.  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 agency.  Each security rating
should be evaluated independently of any other security rating.
 
    The ratings of  Moody's on  mortgage pass-through  certificates address  the
likelihood  of the receipt  by certificateholders of  all distributions to which
such certificateholders  are  entitled.  Moody's  rating  opinions  address  the
structural,   legal,  issues   and  tax-related  aspects   associated  with  the
certificates, including  the nature  of the  underlying mortgage  loans and  the
credit  quality  of the  credit  support provider,  if  any. Moody's  ratings on
pass-through certificates do not represent any assessment of the likelihood that
principal prepayments may differ from those originally anticipated.
 
    The ratings  of  Fitch on  mortgage  pass-through certificates  address  the
likelihood  of the receipt  by certificateholders of  all distributions to which
such certificateholders  are  entitled.  Fitch's  rating  opinions  address  the
structural  and legal  aspects associated  with the  certificates, including the
nature of  the  underlying  mortgage  loans.  Fitch's  ratings  on  pass-through
certificates  do  not represent  any  assessment of  the  likelihood or  rate of
principal prepayments.
 
    The ratings of Moody's and Fitch do  not address the possibility that, as  a
result  of principal  prepayments, Certificateholders  may receive  a lower than
anticipated  yield  or  that  the  holders  of  the  Class  A-3  and  Class  A-6
Certificates may fail to fully recover their initial investments.
 
    The  Seller has not  requested a rating  on the Offered  Certificates of any
Subclass or Class by  any rating agency other  than Moody's and Fitch,  although
data with respect to the Mortgage Loans may have been provided to other agencies
solely  for their  informational purposes.  There can  be no  assurance that any
rating assigned by any other rating  agency to the Offered Certificates will  be
as high as those assigned by Moody's and Fitch.
 
                                      S-85
<PAGE>
                              INDEX OF SIGNIFICANT
                       PROSPECTUS SUPPLEMENT DEFINITIONS
 
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
<S>                                                                                                        <C>
Accrual Certificates.....................................................................................     S-2
Accrual Distribution Amount..............................................................................    S-33
Adjusted Pool Amount.....................................................................................    S-28
Adjusted Principal Distribution Amount...................................................................    S-37
Adjustment Amount........................................................................................    S-55
Bankruptcy Coverage Termination Date.....................................................................    S-55
Bankruptcy Loss..........................................................................................    S-34
Bankruptcy Loss Amount...................................................................................    S-55
Beneficial Owner.........................................................................................    S-22
Book-Entry Certificates..................................................................................     S-2
Cede.....................................................................................................    S-22
Class A Certificates.....................................................................................    Cover
Class A Distribution Amount..............................................................................    S-26
Class A Optimal Amount...................................................................................    S-31
Class A Optimal Principal Amount.........................................................................    S-33
Class A Percentage.......................................................................................    S-34
Class A Prepayment Percentage............................................................................    S-35
Class A Principal Amount.................................................................................    S-33
Class A Principal Balance................................................................................    S-28
Class A Principal Distribution Amount....................................................................    S-33
Class A Subclass Interest Accrual Amount.................................................................    S-26
Class A Subclass Interest Shortfall Amount...............................................................    S-31
Class A Subclass Principal Balance.......................................................................    S-28
Class A-3 Notional Amount................................................................................    S-29
Class A-6 Notional Amount................................................................................    S-29
Class A-18 Notional Amount...............................................................................    S-29
Class A-LR Notional Amount...............................................................................    S-29
Class A-13A PAC Component................................................................................    S-37
Class A-13B PAC Component................................................................................    S-37
Class A-14 PAC Component.................................................................................    S-37
Class A-13 Scheduled Component...........................................................................    S-37
Class A-14 Scheduled Companion Component.................................................................    S-37
Class B Certificates.....................................................................................    Cover
Class B Interest Accrual Amount..........................................................................    S-28
Class B Principal Balance................................................................................    S-28
Class M Certificates.....................................................................................    Cover
Class M Distribution Amount..............................................................................    S-26
Class M Interest Accrual Amount..........................................................................    S-28
Class M Interest Shortfall Amount........................................................................    S-31
Class M Optimal Amount...................................................................................    S-32
Class M Optimal Principal Amount.........................................................................    S-36
Class M Percentage.......................................................................................    S-36
Class M Prepayment Percentage............................................................................    S-36
Class M Principal Balance................................................................................    S-28
Class M Principal Distribution Amount....................................................................    S-36
Companion Certificates...................................................................................     S-2
Code.....................................................................................................    S-21
Cooperatives.............................................................................................    S-56
Co-op Shares.............................................................................................    S-56
</TABLE>
 
                                      S-86
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
Cross-Over Date..........................................................................................    S-53
<S>                                                                                                        <C>
Current Class M Subordination Level......................................................................    S-37
Cut-Off Date Aggregate Principal Balance.................................................................    S-56
Debt Service Reduction...................................................................................    S-34
Definitive Certificates..................................................................................    S-23
Depository Agreement.....................................................................................    S-50
Determination Date.......................................................................................    S-24
Distribution Date........................................................................................     S-9
DTC......................................................................................................     S-7
Enhancement Act..........................................................................................    S-84
ERISA....................................................................................................    S-83
ERISA Plan...............................................................................................    S-83
Excess Bankruptcy Losses.................................................................................    S-55
Excess Fraud Losses......................................................................................    S-55
Excess Principal Payments................................................................................    S-48
Excess Special Hazard Losses.............................................................................    S-55
Exemption................................................................................................    S-83
Fitch....................................................................................................     S-4
Fixed 15-Year Non-Relocation Program Loans...............................................................    S-63
Fixed Program Loans......................................................................................    S-63
Fraud Coverage Termination Date..........................................................................    S-55
Fraud Loss...............................................................................................    S-34
Fraud Loss Amount........................................................................................    S-55
Indirect Participants....................................................................................    S-22
LIBOR....................................................................................................    Cover
LIBOR Based Interest Accrual Period......................................................................    S-11
Liquidated Loan..........................................................................................    S-34
Liquidated Loan Loss.....................................................................................    S-34
Lower-Tier REMIC.........................................................................................     S-2
Lower-Tier REMIC Regular Interest........................................................................    S-80
Moody's..................................................................................................     S-4
Mortgage Loans...........................................................................................     S-2
Mortgaged Properties.....................................................................................    S-56
Mortgages................................................................................................    S-56
Net Foreclosure Profits..................................................................................    S-50
Net Mortgage Interest Rate...............................................................................    S-29
Non-Supported Interest Shortfall.........................................................................    S-30
Original Class M Subordination Level.....................................................................    S-37
Original Subordinated Principal Balance..................................................................    S-35
PAC Certificates.........................................................................................     S-2
PAC Components...........................................................................................    S-37
PAC Principal Amount.....................................................................................    S-39
Participants.............................................................................................    S-22
Percentage Interest......................................................................................    S-26
PHMC.....................................................................................................     S-2
Pool Distribution Amount.................................................................................    S-24
Pool Distribution Amount Allocation......................................................................    S-25
Pool Scheduled Principal Balance.........................................................................    S-34
Pooling and Servicing Agreement..........................................................................    S-79
Prepayment Interest Shortfalls...........................................................................    S-29
Program Loans............................................................................................    S-63
PTE 83-1.................................................................................................    S-83
</TABLE>
 
                                      S-87
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                                                         PAGE
- ---------------------------------------------------------------------------------------------------------  ---------
Realized Losses..........................................................................................    S-34
<S>                                                                                                        <C>
Record Date..............................................................................................    S-24
Reduction Amount.........................................................................................    S-39
Regular Certificates.....................................................................................    S-81
Relocation Mortgage Loans................................................................................    S-57
REMIC....................................................................................................     S-2
Reserve Fund.............................................................................................    S-50
Reserve Fund Available Advance Amount....................................................................    S-50
Reserve Fund Depository..................................................................................    S-50
Reserve Fund Required Amount.............................................................................    S-50
Reserve Fund Trigger Date................................................................................    S-50
Rules....................................................................................................    S-22
Scheduled Certificates...................................................................................     S-2
Scheduled Companion Certificates.........................................................................     S-2
Scheduled Companion Component............................................................................     S-6
Scheduled Component......................................................................................     S-6
Scheduled Principal Balance..............................................................................    S-34
Securities Act...........................................................................................    S-84
Seller...................................................................................................     S-2
Series 1993-9 Certificates...............................................................................    Cover
Servicer.................................................................................................     S-2
SPA......................................................................................................    S-70
Special Hazard Loss......................................................................................    S-34
Special Hazard Loss Amount...............................................................................    S-54
Special Hazard Termination Date..........................................................................    S-54
Subclass.................................................................................................    Cover
Subordinated Certificates................................................................................    Cover
Subordinated Percentage..................................................................................    S-35
Subordinated Prepayment Percentage.......................................................................    S-35
Support Certificates.....................................................................................     S-2
Support Components.......................................................................................     S-2
Trust Estate.............................................................................................     S-2
Underwriter..............................................................................................    Cover
Underwriting Agreement...................................................................................    S-84
Upper-Tier REMIC.........................................................................................     S-2
</TABLE>
 
                                      S-88
<PAGE>
THE PRUDENTIAL HOME MORTGAGE SECURITIES COMPANY, INC.
                                     SELLER
                       MORTGAGE PASS-THROUGH CERTIFICATES
                              (ISSUABLE IN SERIES)
                             ---------------------
 
    The  Prudential  Home Mortgage  Securities  Company, Inc.  (the  "Seller" or
"PHMSC") may sell from time to time under this Prospectus and related Prospectus
Supplements Mortgage Pass-Through Certificates (the "Certificates"), issuable in
series (each, a "Series") consisting of one or more classes (each, a "Class") of
Certificates.
 
    The Certificates of a Series  will represent beneficial ownership  interests
in  a separate  trust formed  by the Seller.  Unless otherwise  specified in the
applicable Prospectus  Supplement, the  property of  each such  trust (for  each
Series,  the "Trust Estate") will be  comprised primarily of fixed or adjustable
interest rate, conventional, monthly pay, fully-amortizing first mortgage  loans
(the  "Mortgage Loans"), secured by  one- to four-family residential properties.
Unless otherwise specified in the applicable prospectus supplement, the Mortgage
Loans will have been acquired by  the Seller from its affiliate, The  Prudential
Home  Mortgage Company, Inc. ("PHMC"), and will have been underwritten to PHMC's
underwriting standards. Unless otherwise specified in the applicable  prospectus
supplement,  all of  the Mortgage Loans  will be  serviced by PHMC  (PHMC in its
capacity as servicer being referred to hereafter as the "Servicer").
 
    The Certificates of  a Series will  consist of  (i) one or  more Classes  of
Certificates  representing fractional  undivided interests in  all the principal
payments and the interest  payments, to the extent  of the related Net  Mortgage
Interest  Rate (as  defined herein),  on the  related Mortgage  Loans ("Standard
Certificates"), (ii) one or more Classes of Certificates representing fractional
undivided interests  in all  or  specified portions  of the  principal  payments
and/or  interest payments,  to the extent  of the related  Net Mortgage Interest
Rate, on the related Mortgage Loans  ("Stripped Certificates"), or (iii) two  or
more Classes of Certificates ("Multi-Class Certificates"), each of which will be
assigned  a principal balance  (a "Stated Amount"),  and each of  which may bear
interest on the Stated Amount at a fixed rate (which may be zero) specified  in,
or  a  variable  rate  determined as  specified  in,  the  applicable Prospectus
Supplement (the "Interest Rate"). Any Class of Certificates may be divided  into
two or more subclasses (each, a "Subclass").
 
    Each  Series of Certificates may include one or more Classes of Certificates
(the "Subordinated Certificates") that are subordinate in right of distributions
to such rights of one or more of  the other Classes of such Series (the  "Senior
Certificates").  If  specified  in  the  applicable  Prospectus  Supplement, the
relative interests of the Senior Certificates and the Subordinated  Certificates
of  a Series in the Trust Estate may  be subject to adjustment from time to time
on the basis of distributions received  in respect thereof. Any Class of  Senior
Certificates  or Subordinated Certificates  may, as described  above, be divided
into two or more Subclasses. If  specified in the Prospectus Supplement,  credit
support  may also be  provided for any Series  of Certificates in  the form of a
guarantee, letter of  credit, mortgage pool  insurance policy or  other form  of
credit enhancement as described herein or therein.
 
    Except  for  the  Seller's  limited obligation  in  connection  with certain
breaches of its  representations and warranties  and certain other  undertakings
and  PHMC's obligations as  Servicer, neither the Seller,  the Servicer, nor any
affiliate of the Seller or the Servicer, will have any obligations with  respect
to  the Certificates. In the event of  delinquencies in payments on the Mortgage
Loans, the Servicer will be obligated to make advances which it determines  will
be recoverable from future payments and collections on the Mortgage Loans.
 
    An election will be made to treat each Trust Estate (or a segregated pool of
assets  therein) underlying a Series of  Multi-Class Certificates or a Series of
Certificates in which the relative interests in the Trust Estate of the  Classes
of  Senior Certificates and Subordinated  Certificates are subject to adjustment
as a "real estate  mortgage investment conduit" (a  "REMIC") for federal  income
tax  purposes. Such an election may also be made with respect to any other Trust
Estate. See "Certain Federal Income Tax Consequences."
 
    There will have  been no public  market for the  Certificates of any  Series
prior to the offering thereof. No assurance can be given that such a market will
develop,   or   that  if   such  a   market  does   develop,  it   will  provide
Certificateholders with liquidity of investment or will continue for the life of
the Certificates.
                           --------------------------
 
   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.  ANY
       REPRESENTATION   TO   THE   CONTRARY   IS   A   CRIMINAL  OFFENSE.
                            ------------------------
 
    The Certificates may be sold from time to time by the Seller through dealers
or  agents,  through  underwriting  syndicates  led  by  one  or  more  managing
underwriters  or through  one or  more underwriters  acting alone.  See "Plan of
Distribution." Affiliates of the Seller may from  time to time act as agents  or
underwriters  in connection with  the sale of  the Certificates. The  terms of a
particular offering will be set forth  in the Prospectus Supplement relating  to
such offering.
 
    THIS  PROSPECTUS MAY NOT BE USED  TO CONSUMMATE SALES OF CERTIFICATES UNLESS
ACCOMPANIED BY  THE  PROSPECTUS SUPPLEMENT  RELATING  TO THE  OFFERING  OF  SUCH
CERTIFICATES.
                           --------------------------
 
                The date of this Prospectus is February 5, 1993
<PAGE>
                                    REPORTS
 
    The  Servicer, or the  Paying Agent appointed by  the Servicer, will furnish
the Certificateholders of each Series, in connection with each distribution  and
annually,  statements  containing  information  with  respect  to  principal and
interest payments and the related Trust  Estate, as described herein and in  the
applicable  Prospectus Supplement for  such Series. No  information contained in
such reports will have been examined  or reported upon by an independent  public
accountant.    See    "Servicing    of    the    Mortgage    Loans--Reports   to
Certificateholders." The Servicer will also furnish periodic statements  setting
forth  certain specified information to the Trustee identified in the Prospectus
Supplement. See "Servicing of  the Mortgage Loans--Reports  to the Trustee."  In
addition,  annually  the Servicer  will furnish  the Trustee  for each  Series a
statement from a  firm of  independent public  accountants with  respect to  the
examination  of certain  documents and  records relating  to the  mortgage loans
serviced by the Servicer under the  related Pooling and Servicing Agreement  and
other   similar   servicing   agreements.  See   "Servicing   of   the  Mortgage
Loans--Evidence as to Compliance." Copies  of the monthly and annual  statements
provided  by the Servicer to the Trustee will be furnished to Certificateholders
of each Series upon  request addressed to the  Servicer c/o The Prudential  Home
Mortgage  Company,  Inc., 7470  New Technology  Way, Frederick,  Maryland 21701,
Attention: Legal Department.
 
                             ADDITIONAL INFORMATION
 
    This Prospectus contains, and the  Prospectus Supplement for each Series  of
Certificates  will contain,  a summary  of the  material terms  of the documents
referred to herein and therein, but neither contains nor will contain all of the
information set forth in the Registration Statement of which this Prospectus  is
a  part.  For  further  information,  reference  is  made  to  such Registration
Statement and  the  exhibits  thereto  which  the  Seller  has  filed  with  the
Securities  and Exchange Commission (the  "Commission"), Washington, D.C., under
the Securities  Act  of 1933,  as  amended (the  "Securities  Act").  Statements
contained in this Prospectus and any Prospectus Supplement as to the contents of
any  contract or other document referred to are summaries and, in each instance,
reference is made  to the copy  of the contract  or other document  filed as  an
exhibit  to the Registration  Statement, each such  statement being qualified in
all respects by  such reference.  Copies of  the Registration  Statement may  be
obtained  from the Public Reference Section  of the Commission, Washington, D.C.
20549 upon payment of the prescribed charges, or may be examined free of  charge
at the Commission's offices, 450 Fifth Street N.W., Washington, D.C. 20549 or at
the  regional offices of the Commission located at Room 1400, 75 Park Place, New
York, New York 10007 and 14th Floor, 500 West Madison Street, Chicago,  Illinois
60661. Copies of any documents incorporated herein by reference will be provided
to  each person to whom  a Prospectus is delivered  upon written or oral request
directed to  The Prudential  Home Mortgage  Securities Company,  Inc., 7470  New
Technology Way, Frederick, Maryland 21701, telephone number 301-846-8199.
 
                        ADDITIONAL DETAILED INFORMATION
 
    The   Seller  intends  to  offer  by  subscription  detailed  mortgage  loan
information in machine readable format updated on a monthly basis (the "Detailed
Information") with  respect  to each  outstanding  Series of  Certificates.  The
Detailed  Information  will reflect  payments  made on  the  individual mortgage
loans, including prepayments in full and in part made on such mortgage loans, as
well as the liquidation  of any such mortgage  loans, and will identify  various
characteristics  of the  mortgage loans.  Among the  initial subscribers  of the
Detailed Information will  be a number  of major investment  brokerage firms  as
well  as  financial information  service firms.  Some  of such  firms, including
certain investment brokerage firms  as well as Bloomberg  L.P. through the  "The
Bloomberg  (R)" service and Merrill Lynch Mortgage Capital Inc. through the "CMO
Passport-Registered  Trademark-"  service,   may,  in   accordance  with   their
individual  business practices and  fee schedules, if any,  make portions of, or
summaries of portions of, the Detailed Information available to their  customers
and  subscribers. The  Seller, the Servicer  and any affiliates  thereof take no
responsibility for  the  actions  of  such firms  in  processing,  analyzing  or
disseminating  such information. For further  information regarding the Detailed
Information and  subscriptions  thereto,  please  contact  The  Prudential  Home
Mortgage  Securities Company, Inc., 7470 New Technology Way, Frederick, Maryland
21701, telephone number (301) 846-8199.
 
                                       2
<PAGE>
                               TABLE OF CONTENTS
 
                                   PROSPECTUS
 
<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                          <C>
Reports....................................................................    2
Additional Information.....................................................    2
Additional Detailed Information............................................    2
Summary of Prospectus......................................................    7
Title of Securities........................................................    7
Seller.....................................................................    7
Servicer...................................................................    7
The Trust Estates..........................................................    7
Description of the Certificates............................................    7
    A. Standard Certificates...............................................    8
    B. Stripped Certificates...............................................    8
    C. Shifting Interest Certificates......................................    8
    D. Multi-Class Certificates............................................    8
Cut-Off Date...............................................................    8
Distribution Dates.........................................................    8
Record Dates...............................................................    9
Interest...................................................................    9
Principal (Including Prepayments)..........................................    9
Distributions in Reduction of Stated Amount................................    9
Credit Enhancement.........................................................    9
Periodic Advances..........................................................   11
Optional Purchase of Mortgage Loans........................................   11
ERISA Limitations..........................................................   11
Tax Status.................................................................   11
Rating.....................................................................   11
The Trust Estates..........................................................   12
General....................................................................   12
Mortgage Loans.............................................................   12
    INSURANCE POLICIES.....................................................   15
    ACQUISITION OF THE MORTGAGE
      LOANS FROM PHMC......................................................   16
    ASSIGNMENT OF MORTGAGE LOANS
      TO THE TRUSTEE.......................................................   16
    REPRESENTATIONS AND WARRANTIES.........................................   18
    OPTIONAL REPURCHASES...................................................   21
Description of The Certificates............................................   22
General....................................................................   22
Percentage Certificates....................................................   23
Multi-Class Certificates...................................................   24
Distributions to Percentage
 Certificateholders........................................................   24
    CERTIFICATES OTHER THAN SHIFTING
      INTEREST CERTIFICATES................................................   24
    CALCULATION OF DISTRIBUTABLE AMOUNTS...................................   24
    DETERMINATION OF AMOUNTS TO
      BE DISTRIBUTED.......................................................   26
    SHIFTING INTEREST CERTIFICATES.........................................   28
</TABLE>
 
                                       3
<PAGE>
<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                          <C>
Example of Distribution to
 Percentage Certificateholders.............................................   30
Distributions to Multi-Class Certificateholders............................   31
    VALUATION OF MORTGAGE LOANS............................................   32
    SPECIAL DISTRIBUTIONS..................................................   33
    LAST SCHEDULED DISTRIBUTION DATE.......................................   33
Credit Support.............................................................   34
Subordination..............................................................   34
    CERTIFICATES OTHER THAN SHIFTING INTEREST CERTIFICATES.................   34
    SHIFTING INTEREST CERTIFICATES.........................................   36
Other Credit Enhancement...................................................   38
    LIMITED GUARANTEE......................................................   38
    LETTER OF CREDIT.......................................................   38
    POOL INSURANCE POLICIES................................................   38
    SPECIAL HAZARD INSURANCE POLICIES......................................   38
    MORTGAGOR BANKRUPTCY BOND..............................................   38
Prepayment and Yield Considerations........................................   39
Pass-Through Rates and Interest Rates......................................   39
Scheduled Delays in Distributions..........................................   39
Effect of Principal Prepayments............................................   39
Weighted Average Life of Certificates......................................   40
The Seller.................................................................   41
PHMC.......................................................................   42
General....................................................................   42
Mortgage Loan Production Sources...........................................   43
Mortgage Loan Underwriting.................................................   45
Mortgage Origination Processing............................................   48
Servicing..................................................................   48
Use of Proceeds............................................................   48
Servicing of the Mortgage Loans............................................   48
The Servicer...............................................................   48
Payments on Mortgage Loans.................................................   49
Periodic Advances and Limitations Thereon..................................   51
Adjustment to Servicing Fee in Connection with Prepaid Mortgage Loans......   51
Reports to Certificateholders..............................................   52
Reports to the Trustee.....................................................   53
Collection and Other Servicing Procedures..................................   54
Enforcement of Due-on-Sale Clauses;
 Realization Upon Defaulted Mortgage Loans.................................   54
Fixed Retained Yield, Servicing Compensation and Payment of Expenses.......   55
Evidence as to Compliance..................................................   56
Certain Matters Regarding the Servicer.....................................   57
The Pooling and Servicing Agreement........................................   58
Events of Default..........................................................   58
Rights Upon Event of Default...............................................   58
Amendment..................................................................   59
Termination; Purchase of Mortgage Loans....................................   60
The Trustee................................................................   60
</TABLE>
 
                                       4
<PAGE>
<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                          <C>
Certain Legal Aspects of the Mortgage Loans................................   61
General....................................................................   61
Foreclosure................................................................   61
Foreclosure on Shares of Cooperatives......................................   62
Rights of Redemption.......................................................   63
Anti-Deficiency Legislation and Other Limitations on Lenders...............   63
Soldiers' and Sailors' Civil Relief Act and Similar Laws...................   64
Environmental Considerations...............................................   65
"Due-on-Sale" Clause.......................................................   65
Applicability of Usury Laws................................................   66
Enforceability of Certain Provisions.......................................   66
Certain Federal Income Tax Consequences....................................   67
Federal Income Tax Consequences for REMIC Certificates.....................   67
  General..................................................................   67
  Status of REMIC Certificates.............................................   68
  Qualification as a REMIC.................................................   68
  Taxation of Regular Certificates.........................................   70
    GENERAL................................................................   70
    ORIGINAL ISSUE DISCOUNT................................................   70
    VARIABLE RATE REGULAR CERTIFICATES.....................................   72
    MARKET DISCOUNT........................................................   73
    PREMIUM................................................................   74
    SALE OR EXCHANGE OF REGULAR CERTIFICATES...............................   74
Taxation of Residual Certificates..........................................   75
    TAXATION OF REMIC INCOME...............................................   75
    BASIS AND LOSSES.......................................................   76
    TREATMENT OF CERTAIN ITEMS OF REMIC INCOME AND EXPENSE.................   76
      ORIGINAL ISSUE DISCOUNT..............................................   76
      MARKET DISCOUNT......................................................   76
      PREMIUM..............................................................   77
      LIMITATIONS OF OFFSET OR EXEMPTION OF REMIC INCOME...................   77
    TAX-RELATED RESTRICTIONS ON TRANSFER OF RESIDUAL CERTIFICATES..........   78
    DISQUALIFIED ORGANIZATIONS.............................................   78
    NONECONOMIC RESIDUAL INTERESTS.........................................   79
    FOREIGN INVESTORS......................................................   80
      SALE OR EXCHANGE OF A RESIDUAL CERTIFICATE...........................   80
    TAXES THAT MAY BE IMPOSED ON THE REMIC POOL............................   81
      PROHIBITED TRANSACTIONS..............................................   81
      CONTRIBUTIONS TO THE REMIC POOL AFTER THE STARTUP DAY................   81
      NET INCOME FROM FORECLOSURE PROPERTY.................................   81
      LIQUIDATION OF THE REMIC POOL........................................   81
      ADMINISTRATIVE MATTERS...............................................   81
Limitations on Deduction of Certain Expenses...............................   82
Taxation of Certain Foreign Investors......................................   82
    REGULAR CERTIFICATES...................................................   82
    RESIDUAL CERTIFICATES..................................................   83
Backup Withholding.........................................................   83
Reporting Requirements.....................................................   83
</TABLE>
 
                                       5
<PAGE>
<TABLE>
<CAPTION>
                                                                             PAGE
                                                                             ----
<S>                                                                          <C>
Federal Income Tax Consequences for Certificates as to Which No REMIC
 Election Is Made..........................................................   84
Standard Certificates......................................................   84
    GENERAL................................................................   84
    TAX STATUS.............................................................   85
    PREMIUM AND DISCOUNT...................................................   85
      PREMIUM..............................................................   86
      ORIGINAL ISSUE DISCOUNT..............................................   86
      MARKET DISCOUNT......................................................   86
      RECHARACTERIZATION OF SERVICING FEES.................................   86
    SALE OR EXCHANGE OF STANDARD CERTIFICATES..............................   87
Stripped Certificates......................................................   87
    GENERAL................................................................   87
    STATUS OF STRIPPED CERTIFICATES........................................   88
    TAXATION OF STRIPPED CERTIFICATES......................................   89
    ORIGINAL ISSUE DISCOUNT................................................   89
      SALE OR EXCHANGE OF STRIPPED CERTIFICATES............................   90
      PURCHASE OF MORE THAN ONE CLASS OF STRIPPED CERTIFICATES.............   90
      POSSIBLE ALTERNATIVE CHARATERIZATIONS................................   90
Reporting Requirements and Backup Withholding..............................   90
Taxation of Certain Foreign Investors......................................   91
ERISA Considerations.......................................................   91
General....................................................................   91
Certain Requirements Under ERISA...........................................   91
    GENERAL................................................................   91
    PARTIES IN INTEREST/DISQUALIFIED PERSONS...............................   92
    DELEGATION OF FIDUCIARY DUTY...........................................   92
Administrative Exemptions..................................................   92
    INDIVIDUAL ADMINISTRATIVE EXEMPTIONS...................................   92
Exempt Plans...............................................................   94
Unrelated Business Taxable Income--Residual Certificates...................   95
Legal Investment...........................................................   95
Plan of Distribution.......................................................   96
Legal Matters..............................................................   97
Rating.....................................................................   97
Index of Significant Definitions...........................................   98
</TABLE>
 
                                       6
<PAGE>
                             SUMMARY OF PROSPECTUS
 
    THE  FOLLOWING IS  QUALIFIED IN  ITS ENTIRETY  BY REFERENCE  TO THE DETAILED
INFORMATION APPEARING  ELSEWHERE IN  THIS PROSPECTUS,  AND BY  REFERENCE TO  THE
INFORMATION  WITH  RESPECT  TO  EACH SERIES  OF  CERTIFICATES  CONTAINED  IN THE
APPLICABLE  PROSPECTUS  SUPPLEMENT.  CERTAIN  CAPITALIZED  TERMS  USED  AND  NOT
OTHERWISE  DEFINED  HEREIN  SHALL  HAVE THE  MEANINGS  GIVEN  ELSEWHERE  IN THIS
PROSPECTUS.
 
<TABLE>
<S>                     <C>
Title of Securities...  Mortgage Pass-Through Certificates (Issuable in Series).
Seller................  The Prudential  Home Mortgage  Securities Company,  Inc.
                        (the "Seller"), a direct, wholly-owned subsidiary of The
                        Prudential  Home Mortgage Company,  Inc. ("PHMC"), which
                        is a  direct,  wholly-owned  subsidiary  of  Residential
                        Services  Corporation of America.  See "The Seller." The
                        Seller  and   PHMC  are   each  indirect,   wholly-owned
                        subsidiaries  of  The  Prudential  Insurance  Company of
                        America ("Prudential Insurance").
Servicer..............  PHMC (in such  capacity, the  "Servicer"). The  Servicer
                        will  service the  Mortgage Loans  comprising each Trust
                        Estate and administer  each Trust Estate  pursuant to  a
                        Pooling  and Servicing  Agreement (each,  a "Pooling and
                        Servicing Agreement").  See "Servicing  of the  Mortgage
                        Loans."
The Trust Estates.....  Each  Trust Estate will consist  of the related Mortgage
                        Loans (other than the  Fixed Retained Yield (as  defined
                        herein),  if any) and certain other related property, as
                        specified  in  the  applicable  Prospectus   Supplement.
                        Unless  otherwise specified in the applicable Prospectus
                        Supplement, the  Mortgage  Loans will  be  conventional,
                        fixed  interest  rate,  monthly  pay,  fully-amortizing,
                        level payment,  one-  to four-family  residential  first
                        mortgage  loans.  If  so  specified  in  the  applicable
                        Prospectus Supplement, a Trust Estate may include  fully
                        amortizing,  adjustable  rate  Mortgage  Loans, Mortgage
                        Loans secured  by condominium  units, townhouses,  units
                        located  within  planned  unit  developments,  long-term
                        leases with  respect to  any  of the  foregoing,  shares
                        issued   by  cooperative  housing  corporations,  and/or
                        Mortgage   Loans   which   are   subject   to   interest
                        differential  subsidy agreements or buydown schedules or
                        which provide for balloon payments of principal.
                        The Mortgage Loans will have been acquired by the Seller
                        from  its  affiliate  PHMC  or  another  affiliate.  The
                        Mortgage Loans will have been originated by PHMC or will
                        have  been  acquired by  PHMC  from other  mortgage loan
                        originators, in each case for its own account or for the
                        account of an affiliate. All of the Mortgage Loans  will
                        have  been  underwritten to  PHMC's standards.  See "The
                        Trust Estates."
                        The particular characteristics or expected
                        characteristics of each Trust  Estate will be set  forth
                        in the applicable Prospectus Supplement.
Description of the
  Certificates........  Each  Series  will consist  of  one or  more  Classes of
                        Certificates which  may  be (i)  Standard  Certificates,
                        (ii) Stripped Certificates,
</TABLE>
 
                                       7
<PAGE>
 
<TABLE>
<S>                     <C>
                        or  (iii)  Multi-Class  Certificates.  Unless  otherwise
                        specified in the  applicable Prospectus Supplement,  the
                        Certificates  will be  offered only  in fully-registered
                        form.
  A.  Standard
  Certificates........  Standard Certificates of a  Series will each evidence  a
                        fractional  undivided beneficial interest in the related
                        Trust Estate and will entitle the holder thereof to  its
                        proportionate share of a percentage of the principal and
                        interest  payments (to the extent  of the applicable Net
                        Mortgage Interest Rate) on the related Mortgage Loans.
  B.  Stripped
  Certificates........  Stripped Certificates  will each  evidence a  fractional
                        undivided  beneficial  interest  in  the  related  Trust
                        Estate and  will  entitle  the  holder  thereof  to  its
                        proportionate share of a specified portion (which may be
                        zero)  of principal payments  and/or a specified portion
                        (which may be zero) of interest payments (to the  extent
                        of  the applicable  Net Mortgage  Interest Rate)  on the
                        related Mortgage Loans.
  C.  Shifting
  Interest
  Certificates........  Shifting Interest Certificates of a Series are  Standard
                        or  Stripped Certificates, credit  enhancement for which
                        is supplied by the adjustment  from time to time of  the
                        relative  interests in  the Trust  Estate of  the Senior
                        Certificates and the  Subordinated Certificates of  such
                        Series.   See  "Description  of  the  Certificates--Dis-
                        tributions  to  Percentage  Certificateholders--Shifting
                        Interest Certificates" and "Credit
                        Support--Subordination--Shifting Interest Certificates."
  D.  Multi-Class
  Certificates........  Each  Series of Multi-Class Certificates will consist of
                        Certificates,  each  of  which  evidences  a  beneficial
                        interest  in the  related Trust Estate  and entitles the
                        holder thereof to interest  payments on the  outstanding
                        Stated  Amount  thereof at  a fixed  rate (which  may be
                        zero) specified  in, or  a variable  rate determined  as
                        specified  in, the applicable Prospectus Supplement, and
                        distributions  in  reduction   of  such  Stated   Amount
                        determined in the manner and applied in the priority set
                        forth  in  the  applicable  Prospectus  Supplement.  The
                        aggregate Stated  Amount  of  a  Series  of  Multi-Class
                        Certificates  may be  less than  the aggregate principal
                        balance of the related Mortgage Loans.
Cut-Off Date..........  The  date   specified  in   the  applicable   Prospectus
                        Supplement.
Distribution Dates....  Distributions  on  Standard  Certificates  and  Stripped
                        Certificates will generally be made on the 25th day (or,
                        if such  day is  not a  business day,  the business  day
                        following  the 25th day) of  each month, commencing with
                        the month following  the month in  which the  applicable
                        Cut-Off  Date  occurs  (each,  a  "Distribution  Date").
                        Distributions on Multi-Class  Certificates will be  made
                        monthly,  quarterly,  or  semi-annually,  on  the  dates
                        specified in the applicable Prospectus Supplement.
</TABLE>
 
                                       8
<PAGE>
 
<TABLE>
<S>                     <C>
Record Dates..........  Distributions will be made on each Distribution Date  to
                        Certificateholders of record at the close of business on
                        (unless  a different date is specified in the applicable
                        Prospectus Supplement)  the  last business  day  of  the
                        month  preceding  the month  in which  such Distribution
                        Date occurs (each, a "Record Date").
Interest..............  With respect to a  Series of Certificates consisting  of
                        Standard Certificates or Stripped Certificates, interest
                        on   the  related  Mortgage   Loans  at  the  applicable
                        pass-through rate  for  each  Class  and  Subclass  (the
                        "Pass-Through  Rate"),  as set  forth in  the applicable
                        Prospectus Supplement, will be passed through monthly to
                        holders thereof, in accordance with the particular terms
                        of  each  such   Certificate.  Holders  of   Multi-Class
                        Certificates  will receive distributions  of interest on
                        the Stated Amount of such Certificate, without regard to
                        the  Net  Mortgage  Interest  Rate  on  the   underlying
                        Mortgage  Loans. The Net Mortgage Interest Rate for each
                        Mortgage Loan in a given period will equal the  mortgage
                        interest  rate for such Mortgage Loan in such period, as
                        specified in the  related mortgage  note (the  "Mortgage
                        Interest  Rate"), less  the retained yield,  if any (the
                        "Fixed Retained Yield"), and less an amount reserved for
                        servicing the Mortgage  Loan and  administration of  the
                        related  Trust  Estate and  related expenses  (the "Ser-
                        vicing Fee").
Principal (Including
  Prepayments)........  With respect  to a  Series of  Standard Certificates  or
                        Stripped Certificates, unless otherwise specified in the
                        applicable  Prospectus  Supplement,  principal  payments
                        (including prepayments in full received on each  related
                        Mortgage  Loan during  the month preceding  the month in
                        which a Distribution Date occurs and partial prepayments
                        received by the Servicer prior to the Determination Date
                        preceding such Distribution Date) will be passed through
                        to holders on such Distribution Date.
Distributions in
  Reduction of Stated
  Amount..............  With respect to  a Series  of Multi-Class  Certificates,
                        distributions in reduction of Stated Amount will be made
                        on  each Distribution Date to  the holders of each Class
                        then entitled to  receive such  distributions until  the
                        aggregate  amount of such distributions have reduced the
                        Stated Amount  of each  such  Class of  Certificates  to
                        zero.  Distributions in reduction  of Stated Amount will
                        be allocated among the  Classes of such Certificates  in
                        the   manner  specified  in  the  applicable  Prospectus
                        Supplement. See "Description of the
                        Certificates--Distributions to Multi-Class Cer-
                        tificateholders."
Credit Enhancement....  A Series of Certificates may include one or more Classes
                        of Senior  Certificates  and  one  or  more  Classes  of
                        Subordinated  Certificates. The rights of the holders of
                        Subordinated  Certificates  of   a  Series  to   receive
                        distributions with respect to the related Mortgage Loans
                        will  be subordinated to  such rights of  the holders of
                        the Senior Certificates of the same Series to the extent
                        (the "Subordinated Amount") specified in the  applicable
                        Prospectus
</TABLE>
 
                                       9
<PAGE>
 
<TABLE>
<S>                     <C>
                        Supplement.  This subordination  is intended  to enhance
                        the likelihood  of  the  timely receipt  by  the  Senior
                        Certificateholders   of  their  proportionate  share  of
                        scheduled monthly principal and interest payments on the
                        related Mortgage  Loans  and  to  protect  them  against
                        losses.   This  protection  will   be  effected  by  the
                        preferential right of  the Senior Certificateholders  to
                        receive  current distributions  on the  related Mortgage
                        Loans and (if so specified in the applicable  Prospectus
                        Supplement)  by the establishment of a reserve fund (the
                        "Subordination  Reserve  Fund")  with  respect  to  each
                        Series   of  Certificates  that   includes  a  Class  of
                        Subordinated  Certificates.  Any  Subordination  Reserve
                        Fund  may be  funded initially with  the Initial Deposit
                        (as defined  herein)  in  an  amount  specified  in  the
                        applicable Prospectus Supplement, and may be funded from
                        time  to  time  from  payments  on  the  Mortgage  Loans
                        otherwise distributable to the Subordinated
                        Certificateholders in  the  manner  and  to  the  extent
                        specified  in the applicable  Prospectus Supplement. The
                        maintenance  of  any   Subordination  Reserve  Fund   is
                        intended   to   provide   liquidity,   but   in  certain
                        circumstances the  Subordination Reserve  Fund could  be
                        depleted   and,   if   other   amounts   available   for
                        distribution are insufficient, shortfalls in
                        distributions to  the  Senior  Certificateholders  could
                        result.  Until  the  Subordinated Amount  is  reduced to
                        zero, Senior  Certificateholders  will  be  entitled  to
                        receive  the amount of any such shortfall, together with
                        interest at  the applicable  Pass-Through Rate,  on  the
                        next   Distribution  Date   (as  defined   herein).  The
                        Subordinated  Amount  is  intended  to  protect   Senior
                        Certificateholders  against  losses; however,  if losses
                        realized on the  Mortgage Loans  in a  Trust Estate  are
                        exceptionally  high Senior  Certificateholders will bear
                        their proportionate share of any losses realized on  the
                        related  Mortgage  Loans  in  excess  of  the applicable
                        Subordinated Amount.
                        If so specified in the applicable Prospectus Supplement,
                        the   protection   afforded   to   holders   of   Senior
                        Certificates of a Series by the subordination of certain
                        rights  of holders of  Subordinated Certificates of such
                        Series to distributions  on the  related Mortgage  Loans
                        may  be effected by  a method other  than that described
                        above, such as, in the  event that the applicable  Trust
                        Estate  (or a segregated pool  of assets therein) elects
                        to be treated as a REMIC, the reallocation from time  to
                        time, on the basis of distributions previously received,
                        of  the  respective percentage  interests of  the Senior
                        Certificates and  the Subordinated  Certificates in  the
                        related   Trust   Estate.   See   "Description   of  the
                        Certificates--Distributions to Percentage
                        Certificateholders-- Shifting Interest Certificates."
                        The Certificates  of  any Series,  or  any one  or  more
                        Classes  thereof, may be  entitled to the  benefits of a
                        guarantee, letter  of  credit, mortgage  pool  insurance
                        policy  or other form of credit enhancement as specified
                        in   the   applicable    Prospectus   Supplement.    See
                        "Description of the Certificates" and "Credit Support."
</TABLE>
 
                                       10
<PAGE>
 
<TABLE>
<S>                     <C>
Periodic Advances.....  In  the  event  of  delinquencies  in  payments  on  the
                        Mortgage Loans, the Servicer will make advances of  cash
                        ("Periodic  Advances")  to the  Certificate  Account (as
                        defined  herein)  to  the   extent  that  the   Servicer
                        determines  such Periodic Advances  would be recoverable
                        from future  payments and  collections on  the  Mortgage
                        Loans.  Any such Periodic  Advances will be reimbursable
                        to the Servicer as described herein and in the  applica-
                        ble   Prospectus  Supplement.  See   "Servicing  of  the
                        Mortgage  Loans--Periodic   Advances   and   Limitations
                        Thereon."
Optional Purchase of
  Mortgage
  Loans...............  The  Seller may, at its option, repurchase any defaulted
                        Mortgage  Loan.   See   "The   Trust   Estates--Mortgage
                        Loans--Optional  Repurchases."  If so  specified  in the
                        Prospectus Supplement with respect to a Series, all, but
                        not less than all, of the Mortgage Loans in the  related
                        Trust  Estate  and  any  property  acquired  in  respect
                        thereof at the time, may  be purchased by the person  or
                        persons  specified in such  Prospectus Supplement in the
                        manner and  at the  price specified  in such  Prospectus
                        Supplement.  In the  event that  an election  is made to
                        treat the related Trust Estate (or a segregated pool  of
                        assets  therein) as a  REMIC, any such  purchase will be
                        effected only pursuant to a "qualified liquidation,"  as
                        defined under Section 860F(a)(4)(A) of the Internal Rev-
                        enue  Code of 1986, as amended (the "Code"). Exercise of
                        the right of purchase  will effect the early  retirement
                        of  the Certificates of that Series. See "Prepayment and
                        Yield Considerations."
ERISA Limitations.....  A fiduciary of any employee benefit plan subject to  the
                        fiduciary  responsibility  provisions  of  the  Employee
                        Retirement Income  Security  Act  of  1974,  as  amended
                        ("ERISA"),  including the "prohibited transaction" rules
                        thereunder, and to the  corresponding provisions of  the
                        Code,   should  carefully  review  with  its  own  legal
                        advisors whether the purchase or holding of Certificates
                        could give rise to a transaction prohibited or otherwise
                        impermissible  under  ERISA  or  the  Code.  See  "ERISA
                        Considerations."
Tax Status............  The treatment of the Certificates for federal income tax
                        purposes  will  be  determined (i)  by  whether  a REMIC
                        election  is   made  with   respect  to   a  Series   of
                        Certificates  and,  if  a  REMIC  election  is  made, by
                        whether  the  Certificates  are  Regular  Interests   or
                        Residual  Interests  and  (ii) by  whether,  if  a REMIC
                        election is not  made, the Certificates  of such  Series
                        are  Standard Certificates or Stripped Certificates. See
                        "Certain Federal Income Tax Consequences."
Rating................  It is  a  condition  to the  issuance  of  the  Stripped
                        Certificates  and  the Multi-Class  Certificates  of any
                        Series that they  be rated  in one of  the four  highest
                        rating  categories by at least one nationally recognized
                        statistical rating  organization  (a  "Rating  Agency").
                        Standard  Certificates  may or  may  not be  rated  by a
                        Rating Agency.
</TABLE>
 
                                       11
<PAGE>
                               THE TRUST ESTATES
 
GENERAL
 
    The  Trust Estate for  each Series of Certificates  will consist of Mortgage
Loans evidenced by promissory notes (the "Mortgage Notes") secured by mortgages,
deeds of trust or  other instruments creating first  liens (the "Mortgages")  on
some  or all of the  following types of property  (as so secured, the "Mortgaged
Properties"), to the extent set  forth in the applicable Prospectus  Supplement:
(i)  one- to four-family detached residences, (ii) townhouses, (iii) condominium
units, (iv) units within  planned unit developments,  (v) long-term leases  with
respect  to any of the  foregoing, and (vi) shares  issued by private non-profit
housing corporations  ("cooperatives") and  the  related proprietary  leases  or
occupancy agreements granting exclusive rights to occupy specified units in such
cooperatives'  buildings.  In addition,  a Trust  Estate  will also  include (i)
amounts held from  time to  time in the  related Certificate  Account, (ii)  the
Seller's  interest in  any primary  mortgage insurance,  hazard insurance, title
insurance or other  insurance policies relating  to a Mortgage  Loan, (iii)  any
property  which initially secured a Mortgage Loan and which has been acquired by
foreclosure or trustee's sale or deed in lieu of foreclosure or trustee's  sale,
(iv)  if applicable, and  to the extent  set forth in  the applicable Prospectus
Supplement, any Subordination Reserve Fund and/or any other reserve fund, (v) if
applicable, and to the extent set forth in the applicable Prospectus Supplement,
contractual obligations of any person to make payments in respect of any form of
credit enhancement or any interest subsidy agreement, and (vi) such other assets
as may be specified  in the applicable  Prospectus Supplement. Unless  otherwise
specified  in the  applicable Prospectus Supplement,  the Trust  Estate will not
include,  however,  the  portion  of  interest  on  the  Mortgage  Loans   which
constitutes  the Fixed  Retained Yield, if  any. See "Servicing  of the Mortgage
Loans--Fixed Retained Yield; Servicing Compensation and Payment of Expenses."
 
MORTGAGE LOANS
 
    The Mortgage Loans will have been acquired by the Seller from its  affiliate
PHMC  or another affiliate. The Mortgage Loans will have been originated by PHMC
for its  own account  or for  the  account of  an affiliate  or will  have  been
acquired  by PHMC for  its own account or  for the account  of an affiliate from
other mortgage loan originators. Each Mortgage Loan will have been  underwritten
to   PHMC's  standards.  See  "PHMC--  Mortgage  Loan  Production  Sources"  and
"--Mortgage Loan Underwriting." The Prospectus  Supplement for each Series  will
set  forth the  respective number  and principal  amounts of  Mortgage Loans (i)
originated by PHMC for its own account or for the account of its affiliates  and
(ii)  purchased by PHMC for its own account or for the account of its affiliates
from other  mortgage  loan originators  through  PHMC's mortgage  loan  purchase
programs.
 
    Each  of the  Mortgage Loans will  be secured  by a Mortgage  on a Mortgaged
Property located in any of the 50 states or the District of Columbia. Generally,
the land underlying a Mortgaged Property will consist of five acres or less  but
may  consist of greater acreage in PHMC's  discretion. The Mortgage Loans may be
secured by leases on real property  under circumstances that PHMC determines  in
its  discretion  are commonly  acceptable  to institutional  mortgage investors.
Generally, a  Mortgage Loan  will be  secured  by a  lease only  if the  use  of
leasehold  estates as security for mortgage loans  is customary in the area, the
lease is not subject to any prior  lien that could result in termination of  the
lease  and the term  of the lease ends  at least five  years beyond the maturity
date of the related Mortgage Loan. The Prospectus Supplement will set forth  the
geographic  distribution of  Mortgaged Properties  and the  number and aggregate
unpaid principal  balances  of  the  Mortgage Loans  by  category  of  Mortgaged
Property.
 
    The  Prospectus Supplement for each Series will  also set forth the range of
original terms  to maturity  of the  Mortgage  Loans in  the Trust  Estate,  the
weighted  average remaining term to stated maturity  at the Cut-Off Date of such
Mortgage Loans, the earliest and latest  months of origination of such  Mortgage
Loans,  the range  of Mortgage  Interest Rates  and Net  Mortgage Interest Rates
borne by such Mortgage Loans, if  such Mortgage Loans have varying Net  Mortgage
Interest Rates, the weighted average Net Mortgage Interest
 
                                       12
<PAGE>
Rate  at the  Cut-Off Date  of such Mortgage  Loans, the  range of Loan-to-Value
Ratios at  the  time of  origination  of such  Mortgage  Loans and  the  highest
outstanding principal balance at origination of any such Mortgage Loan.
 
    The  information with respect to the Mortgage Loans and Mortgaged Properties
described in the  preceding two paragraphs  may be presented  in the  Prospectus
Supplement  for a Series as  ranges in which the  actual characteristics of such
Mortgage Loans and Mortgaged Properties are expected to fall. In all such cases,
information as to the final characteristics of the Mortgage Loans and  Mortgaged
Properties will be available in a Current Report on Form 8-K which will be filed
with  the  Commission within  15 days  of  the initial  issuance of  the related
Series.
 
    Unless otherwise specified in the  applicable Prospectus Supplement, all  of
the Mortgage Loans in a Trust Estate will have monthly payments due on the first
of  each month (each, a "Due Date") and will be fully-amortizing Mortgage Loans,
each with a fixed rate of interest  and level monthly payments over the term  of
the  Mortgage Loan. If  so specified in the  applicable Prospectus Supplement, a
Trust Estate may include fully  amortizing, adjustable rate Mortgage Loans  with
Mortgage  Interest Rates adjusted  periodically, in the  manner specified in the
related Prospectus  Supplement. Unless  otherwise  specified in  the  applicable
Prospectus Supplement, no adjustable interest rate Mortgage Loan will be subject
to  a  possibility  of negative  amortization.  If specified  in  the applicable
Prospectus Supplement, fixed rates on certain Mortgage Loans may be converted to
adjustable rates and adjustable rates on certain Mortgage Loans may be converted
to fixed rates, in each case after  origination of such Mortgage Loans and  upon
the  satisfaction  of other  conditions specified  in the  applicable Prospectus
Supplement. Unless otherwise specified in the applicable Prospectus  Supplement,
in  either  such event,  the Pooling  and Servicing  Agreement will  require the
Servicer to repurchase each such converted Mortgage Loan at the price set  forth
in  the  applicable  Prospectus  Supplement.  If  specified  in  the  applicable
Prospectus Supplement, a  Trust Estate  may contain  convertible Mortgage  Loans
which  have converted prior to  the formation of the  Trust Estate and which are
subject to no further conversions.
 
    Unless otherwise  specified  in  the applicable  Prospectus  Supplement,  no
Mortgage  Loan will have had  at origination a Loan-to-Value  Ratio in excess of
90%. The Loan-to-Value  Ratio is the  ratio, expressed as  a percentage, of  the
principal  amount of the Mortgage  Loan at origination to  the lesser of (i) the
appraised value  of  the  related  Mortgaged  Property,  as  established  by  an
appraisal obtained by the originator generally no more than four months prior to
origination,  or  (ii) the  sale price  for  such property.  For the  purpose of
calculating the Loan-to-Value Ratio of any  Mortgage Loan that is the result  of
the  refinancing (including a refinancing for  "equity take out" purposes) of an
existing mortgage loan, the appraised value of the related Mortgaged Property is
generally determined by reference  to an appraisal  obtained in connection  with
the  origination  of the  replacement loan.  Unless  otherwise specified  in the
related Prospectus Supplement,  with respect  to a  Mortgage Loan  secured by  a
second  home,  an  owner-occupied  cooperative, a  high  rise  condominium  or a
non-owner occupied property, the  Loan-to-Value Ratio will  not exceed 80%,  and
with  respect to a Mortgage Loan which is made to refinance, for equity take out
purposes, an  existing  mortgage loan  on  a non-owner  occupied  property,  the
Loan-to-Value  Ratio  will generally  not exceed  75%.  Mortgage Loans  having a
Loan-to-Value Ratio in  excess of 80%  will not be  covered by primary  mortgage
insurance,   except  to  the  extent  specified  in  the  applicable  Prospectus
Supplement. See "PHMC--Mortgage Loan Underwriting."
 
    No assurance  can be  given that  values of  the Mortgaged  Properties  have
remained  or will remain at  the levels which existed  on the dates of appraisal
(or, where applicable, recertification of value) of the related Mortgage  Loans.
If  residential real estate  values generally or  in particular geographic areas
decline such  that  the outstanding  balances  of  the Mortgage  Loans  and  any
secondary  financing on  the Mortgaged Properties  in a  particular Trust Estate
become equal to or greater than the values of the related Mortgaged  Properties,
the  actual rates of delinquencies, foreclosures and losses could be higher than
those now generally experienced in the  mortgage lending industry and those  now
experienced  in  PHMC's  servicing  portfolio.  In  addition,  adverse  economic
conditions  generally,  in  particular   geographic  areas  or  industries,   or
 
                                       13
<PAGE>
affecting  particular segments  of the  borrowing community  (such as mortgagors
relying on commission  income and  self-employed mortgagors)  and other  factors
which  may or may  not affect real  property values, including  the purposes for
which the Mortgage Loans were made and the uses of the Mortgaged Properties, 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  Trust Estate.  See
"PHMC--Mortgage Loan Underwriting" and "Description of the
Certificates--Weighted  Average Life of Certificates" herein. To the extent that
such losses are not covered  by the methods of  credit support or the  insurance
policies  described herein, they will be borne by holders of the Certificates of
the Series evidencing interests in such Trust Estate.
 
    Unless otherwise  provided  in  the applicable  Prospectus  Supplement,  all
Mortgage  Loans will  be covered by  an appropriate standard  form American Land
Title Association ("ALTA")  title insurance policy,  or a substantially  similar
policy  or  form  of  insurance  acceptable  to  the  Federal  National Mortgage
Association ("FNMA") or the Federal Home Loan Mortgage Corporation ("FHLMC").
 
    If so specified in the applicable Prospectus Supplement, a Trust Estate  may
contain   Mortgage  Loans  subject  to  temporary  interest  subsidy  agreements
("Subsidy Loans") pursuant  to which the  monthly payments made  by the  related
mortgagors  will be  less than the  scheduled monthly payments  on such Mortgage
Loans with the present  value of the resulting  difference in payment  ("Subsidy
Payments")  being provided  by the  employer of  the mortgagor,  generally on an
annual  basis.  Unless   otherwise  specified  in   the  applicable   Prospectus
Supplement,  Subsidy Payments  will be placed  in a  custodial account ("Subsidy
Account") by  the  Servicer. Despite  the  existence  of a  subsidy  program,  a
mortgagor  remains  primarily  liable for  making  all scheduled  payments  on a
Subsidy Loan and for all other obligations provided for in the related  Mortgage
Note and Mortgage Loan.
 
    Subsidy  Loans are offered by employers generally through either a graduated
or fixed  subsidy loan  program, or  a  combination thereof.  The terms  of  the
subsidy  agreements relating  to Subsidy Loans  generally range from  one to ten
years. The subsidy agreements relating to  Subsidy Loans made under a  graduated
program  generally will  provide for subsidy  payments that  result in effective
subsidized interest rates  between three percentage  points and five  percentage
points  below  the Mortgage  Interest Rates  specified  in the  related Mortgage
Notes. Generally, under a graduated program, the subsidized rate for a  Mortgage
Loan  will increase approximately one percentage  point per year until it equals
the full Mortgage Interest Rate. For example, if the initial subsidized interest
rate is five percentage points below the Mortgage Interest Rate in year one, the
subsidized rate  will increase  to  four percentage  points below  the  Mortgage
Interest Rate in year two, and likewise until year six, when the subsidized rate
will  equal the Mortgage Interest Rate. Where the subsidy agreements relating to
Subsidy Loans are in effect for longer than five years, the subsidized  interest
rates  generally increase  at smaller percentage  increments for  each year. The
subsidy agreements  relating  to  Subsidy  Loans  made  under  a  fixed  program
generally  will  provide  for  subsidized interest  rates  at  fixed percentages
(generally one percentage  point to  two percentage points)  below the  Mortgage
Interest  Rates for  specified periods,  generally not  in excess  of ten years.
Subsidy Loans are also offered pursuant to combination fixed/graduated programs.
The subsidy agreements relating to such Subsidy Loans generally will provide for
an initial  fixed subsidy  of up  to five  percentage points  below the  related
Mortgage  Interest Rate for up  to five years, and  then a periodic reduction in
the subsidy for up to  five years, at an equal  fixed percentage per year  until
the subsidized rate equals the Mortgage Interest Rate.
 
    Generally,  employers may terminate subsidy programs in the event of (i) the
mortgagor's death, retirement,  resignation or termination  of employment,  (ii)
the  full prepayment  of the Subsidy  Loan by  the mortgagor, (iii)  the sale or
transfer by the mortgagor of the related Mortgaged Property as a result of which
the mortgagee  is  entitled to  accelerate  the  Subsidy Loan  pursuant  to  the
"due-on-sale"  clause contained  in the  Mortgage, or  (iv) the  commencement of
foreclosure proceedings or the acceptance of  a deed in lieu of foreclosure.  In
addition,  some  subsidy programs  provide that  if  prevailing market  rates of
interest on mortgage loans similar to a Subsidy Loan are less than the  Mortgage
Interest  Rate of such Subsidy Loan, the employer may request that the mortgagor
refinance   such    Subsidy    Loan    and    may    terminate    the    related
 
                                       14
<PAGE>
subsidy  agreement if the mortgagor fails to refinance such Subsidy Loan. In the
event the  mortgagor refinances  such Subsidy  Loan, the  new loan  will not  be
included  in the Trust Estate. See "Prepayment and Yield Considerations" herein.
In the event  a subsidy  agreement is terminated,  the amount  remaining in  the
Subsidy  Account will  be returned  to the employer,  and the  mortgagor will be
obligated to make the full amount  of all remaining scheduled payments, if  any.
The  mortgagor's reduced  monthly housing expense  as a  consequence of payments
under a  subsidy agreement  is  used by  PHMC  in determining  certain  expense-
to-income  ratios utilized in  underwriting a Subsidy  Loan. See "PHMC--Mortgage
Loan Underwriting."
 
    If so specified in the applicable Prospectus Supplement, a Trust Estate  may
contain  Mortgage Loans subject  to temporary buy-down  plans ("Buy-Down Loans")
pursuant to which the  monthly payments made by  the mortgagor during the  early
years  of the Mortgage Loan will be  less than the scheduled monthly payments on
the Mortgage Loan. The resulting difference  in payment will be compensated  for
from  an amount contributed by  the seller of the  related Mortgaged Property or
another source, including the  originator of the Mortgage  Loan (generally on  a
present  value basis) and, if so specified in the related Prospectus Supplement,
placed in a  custodial account  (the "Buy-Down Fund")  by the  Servicer. If  the
mortgagor  on a  Buy-Down Loan  prepays such Mortgage  Loan in  its entirety, or
defaults on such Mortgage Loan and the Mortgaged Property is sold in liquidation
thereof, during the period  when the mortgagor is  not obligated, on account  of
the  buy-down plan, to pay the full  monthly payment otherwise due on such loan,
the unpaid  principal balance  of such  Buy-Down  Loan will  be reduced  by  the
amounts  remaining in the Buy-Down Fund with  respect to such Buy-Down Loan, and
such amounts will be deposited in  the Certificate Account (as defined  herein),
net  of any  amounts paid  with respect  to such  Buy-Down Loan  by any insurer,
guarantor or other person pursuant to a credit enhancement arrangement described
in the applicable Prospectus Supplement.
 
    If so specified in the applicable Prospectus Supplement, a Trust Estate  may
include  Mortgage Loans which are amortized over 30 years but which have shorter
terms to maturity (each  such Mortgage Loan, a  "Balloon Loan") that causes  the
outstanding principal balance of the related Mortgage Loan to be due and payable
at  the  end  of  a  certain specified  period  (the  "Balloon  Period"). Unless
otherwise specified in  the applicable  Prospectus Supplement,  the borrower  of
such  Balloon Loan  will be  obligated to  pay the  entire outstanding principal
balance of the Balloon  Loan at the  end of the related  Balloon Period. In  the
event  PHMC refinances a mortgagor's Balloon Loan at maturity, the new loan will
not be included in the Trust  Estate. See "Prepayment and Yield  Considerations"
herein.  A Trust Estate  may also include  other types of  Mortgage Loans to the
extent set forth in the applicable Prospectus Supplement.
 
  INSURANCE POLICIES
 
    The Pooling and Servicing Agreement will require the Servicer to cause to be
maintained for each Mortgage Loan a standard hazard insurance policy issued by a
generally acceptable insurer insuring the improvements on the Mortgaged Property
underlying such Mortgage Loan  against loss by fire,  with extended coverage  (a
"Standard  Hazard Insurance Policy").  The Pooling and  Servicing Agreement will
require that such  Standard Hazard  Insurance Policy be  in an  amount at  least
equal  to the lesser of  100% of the insurable value  of the improvements on the
Mortgaged Property or  the principal  balance of such  Mortgage Loan;  provided,
however, that such insurance may not be less than the minimum amount required to
fully  compensate  for any  damage  or loss  on  a replacement  cost  basis. The
Servicer will also maintain  on property acquired upon  foreclosure, or deed  in
lieu of foreclosure, of any Mortgage Loan, a Standard Hazard Insurance Policy in
an amount that is at least equal to the lesser of 100% of the insurable value of
the  improvements which are a part of  such property or the principal balance of
such Mortgage Loan  plus accrued  interest and  liquidation expenses;  provided,
however, that such insurance may not be less than the minimum amount required to
fully compensate for any damage or loss on a replacement cost basis. Any amounts
collected  under any  such policies  (other than  amounts to  be applied  to the
restoration or repair of the Mortgaged  Property or released to the borrower  in
accordance   with  normal  servicing  procedures)   will  be  deposited  in  the
Certificate Account.
 
                                       15
<PAGE>
    The Standard Hazard Insurance Policies covering the Mortgage Loans generally
will cover  physical damage  to,  or destruction  of,  the improvements  on  the
Mortgaged Property caused by fire, lightning, explosion, smoke, windstorm, hail,
riot,  strike  and civil  commotion, subject  to  the conditions  and exclusions
particularized in each  policy. Because the  Standard Hazard Insurance  Policies
relating  to such Mortgage Loans will  be underwritten by different insurers and
will cover Mortgaged Properties  located in various  states, such policies  will
not  contain identical terms and conditions. The most significant terms thereof,
however, generally  will  be determined  by  state  law and  generally  will  be
similar.  Most  such  policies  typically will  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 mudflows), nuclear  reaction, wet or  dry rot, vermin,  rodents, insects  or
domestic  animals,  hazardous  wastes  or hazardous  substances,  theft  and, in
certain cases, vandalism.  The foregoing  list is merely  indicative of  certain
kinds of uninsured risks and is not all-inclusive.
 
    The Servicer may maintain a blanket policy insuring against hazard losses on
all  of the  Mortgaged Properties in  lieu of maintaining  the required Standard
Hazard Insurance Policies.  The Servicer will  be liable for  the amount of  any
deductible  under a blanket policy  if such amount would  have been covered by a
required Standard Hazard Insurance Policy, had it been maintained.
 
    In general, if the  improvements on a Mortgaged  Property are located in  an
area  identified in  the Federal  Register by  the Federal  Emergency Management
Agency as having special flood hazards  (and such flood insurance has been  made
available)  the Pooling  and Servicing  Agreement will  require the  Servicer to
cause to be maintained a flood insurance policy meeting the requirements of  the
current  guidelines  of the  Federal Insurance  Administration with  a generally
acceptable insurance  carrier. Generally,  the Pooling  and Servicing  Agreement
will  require that such flood insurance be in  an amount not less than the least
of (i) the  outstanding principal balance  of the Mortgage  Loan, (ii) the  full
insurable  value of the  improvements, or (iii) the  maximum amount of insurance
which is available under the Flood Disaster Protection Act of 1973, as  amended.
PHMC does not provide financing for flood zone properties located in communities
not  participating  in  the National  Flood  Insurance Program  or  if available
insurance coverage is, in its judgment, unrealistically low.
 
    Any losses incurred with  respect to Mortgage Loans  due to uninsured  risks
(including  earthquakes,  mudflows,  floods and  hazardous  wastes  or hazardous
substances) or insufficient hazard insurance proceeds could affect distributions
to the Certificateholders.
 
  ACQUISITION OF THE MORTGAGE LOANS FROM PHMC
 
    The Seller will  have acquired  the Mortgage  Loans included  in each  Trust
Estate from PHMC. In connection with the conveyance of the Mortgage Loans to the
Seller,  PHMC will (i) agree to deliver to the Seller all of the documents which
the  Seller  is  required  to  deliver   to  the  Trustee;  (ii)  make   certain
representations  and warranties to the Seller which will be the basis of certain
of the Seller's representations and warranties  to the Trustee; and (iii)  agree
to  repurchase or substitute for any Mortgage Loan for which any document is not
delivered or is  found to  be defective  in any  material respect,  or which  is
discovered  at any time  not to be  in conformance with  the representations and
warranties PHMC has made to the Seller, if PHMC cannot deliver such document  or
cure  such defect or breach within 60  days after notice thereof. Such agreement
will inure to  the benefit of  the Trustee and  is intended to  help ensure  the
Seller's  performance of its limited obligation  to repurchase or substitute for
Mortgage Loans. See "The  Trust Estates--Mortgage Loans--Assignment of  Mortgage
Loans to the Trustee," and "--Representations and Warranties."
 
  ASSIGNMENT OF MORTGAGE LOANS TO THE TRUSTEE
 
    At  the time of issuance of each  Series of Certificates, the Mortgage Loans
in the  related  Trust Estate  will,  pursuant  to the  applicable  Pooling  and
Servicing Agreement, be assigned to the Trustee, together with all principal and
interest received on or with respect to such Mortgage Loans after the applicable
Cut-Off Date other than principal and interest due and payable on or before such
Cut-Off  Date  and interest  attributable to  the Fixed  Retained Yield  on such
Mortgage  Loans,  if   any.  See   "Servicing  of   the  Mortgage   Loans--Fixed
 
                                       16
<PAGE>
Retained  Yield, Servicing Compensation and Payment of Expenses." The Trustee or
its agent will, concurrently with such assignment, authenticate and deliver  the
Certificates  evidencing such Series to the  Seller in exchange for the Mortgage
Loans. Each  Mortgage Loan  will be  identified in  a schedule  appearing as  an
exhibit  to the applicable  Pooling and Servicing  Agreement. Each such schedule
will include, among other things, the  unpaid principal balance as of the  close
of  business on the applicable Cut-Off Date,  the maturity date and the Mortgage
Interest Rate for each Mortgage Loan in the related Trust Estate.
 
    In addition,  with respect  to each  Mortgage Loan  in a  Trust Estate,  the
mortgage or other promissory note, any assumption, modification or conversion to
fixed  interest rate agreement, a mortgage assignment in recordable form and the
recorded Mortgage (or other  documents as are required  under applicable law  to
create  a perfected security interest in the  Mortgaged Property in favor of the
Trustee) will  be delivered  to  the Trustee  (or  to a  designated  custodian);
provided  that, in instances where recorded documents cannot be delivered due to
delays in connection with recording, copies thereof, certified by the Seller  to
be  true  and complete  copies  of such  documents  sent for  recording,  may be
delivered and the original  recorded documents will  be delivered promptly  upon
receipt. As to each Mortgage Loan for which there is primary mortgage insurance,
the  certificate of primary mortgage insurance will be delivered to the Trustee.
The assignment of  each Mortgage  will be  recorded promptly  after the  initial
issuance  of Certificates for the related  Trust Estate, except in states where,
in the  opinion of  counsel acceptable  to the  Trustee, such  recording is  not
required  to protect  the Trustee's  interest in  the Mortgage  Loan against the
claim of  any subsequent  transferee or  any  successor to  or creditor  of  the
Seller, PHMC or the originator of such Mortgage Loan.
 
    The   Trustee  will  hold  such  documents  in  trust  for  the  benefit  of
Certificateholders of the related Series  and will review such documents  within
45  days of the date  of the applicable Pooling  and Servicing Agreement. If any
document is not delivered or is found  to be defective in any material  respect,
or  if the  Seller is  in breach  of any  of its  representations and warranties
contained in such Pooling  and Servicing Agreement,  and such breach  materially
and  adversely affects  the interests  of the  Certificateholders in  a Mortgage
Loan, and the Seller cannot deliver such document or cure such defect or  breach
within  60 days after written notice thereof, the Seller will, within 60 days of
such notice, either repurchase the related  Mortgage Loan from the Trustee at  a
price  equal  to the  then unpaid  principal balance  thereof, plus  accrued and
unpaid interest  at  the applicable  Mortgage  Interest Rate  (minus  any  Fixed
Retained Yield) through the last day of the month in which such repurchase takes
place,  or (in the  case of a  Series for which  a REMIC election  will be made,
unless the  maximum  period  as  may  be provided  by  the  Code  or  applicable
regulations  of the  Department of  the Treasury  ("Treasury Regulations") shall
have elapsed  since  the  execution  of the  applicable  Pooling  and  Servicing
Agreement)  substitute  for  such  Mortgage  Loan  a  new  mortgage  loan having
characteristics such that the representations and warranties of the Seller  made
pursuant   to  the  applicable  Pooling  and  Servicing  Agreement  (except  for
representations and warranties as to the correctness of the applicable  schedule
of  mortgage loans) would  not have been incorrect  had such substitute Mortgage
Loan originally been  a Mortgage  Loan. In the  case of  a repurchased  Mortgage
Loan,  the  purchase  price will  be  deposited  by the  Seller  in  the related
Certificate Account. In  the case of  a substitute Mortgage  Loan, the  mortgage
file  relating thereto will be  delivered to the Trustee  (or the custodian) and
the Seller will deposit in the Certificate Account an amount equal to the excess
of (i) the unpaid  principal balance of the  Mortgage Loan which is  substituted
for,  over (ii)  the unpaid principal  balance of the  substitute Mortgage Loan,
together with interest on such excess at  the Net Mortgage Interest Rate to  the
next  scheduled Due  Date of  the Mortgage Loan  which is  being substituted for
(adjusted, in the case of a Series for  which a REMIC election will be made,  as
set  forth in the applicable Pooling and Servicing Agreement, to ensure that the
Trustee will not recognize gain). In no event will any substitute Mortgage  Loan
have  an unpaid principal  balance greater than  the Scheduled Principal Balance
(as defined herein)  of the  Mortgage Loan for  which it  is substituted  (after
giving   effect  to  the  scheduled  principal  payment  due  in  the  month  of
substitution on the Mortgage  Loan substituted for), or  a term greater than,  a
Mortgage Interest Rate less than, a Mortgage Interest Rate more than one percent
per  annum greater than or a Loan-to-Value Ratio greater than, the Mortgage Loan
for which it is  substituted. If substitution  is to be  made for an  adjustable
rate    Mortgage   Loan,   the   substitute   Mortgage   Loan   will   have   an
 
                                       17
<PAGE>
unpaid principal balance no greater than the Scheduled Principal Balance of  the
Mortgage  Loan for which it is substituted (after giving effect to the scheduled
principal payment  due  in  the  month of  substitution  on  the  Mortgage  Loan
substituted  for), a Loan-to-Value Ratio  less than or equal  to, and a Mortgage
Interest Rate at  least equal  to, that  of the Mortgage  Loan for  which it  is
substituted,  and  will  bear  interest  based on  the  same  index,  margin and
frequency of  adjustment  as the  substituted  Mortgage Loan.  Unless  otherwise
specified in the applicable Prospectus Supplement, the repurchase obligation and
the  mortgage substitution referred  to above will  constitute the sole remedies
available to the Certificateholders  or the Trustee with  respect to missing  or
defective  documents or breach  of the Seller's  representations and warranties.
Notwithstanding the above, if an election is made to treat the Trust Estate  (or
a segregated pool of assets therein) with respect to a Series of Certificates as
a  REMIC (see "Certain Federal Income  Tax Consequences"), substitutions will be
made only upon receipt by the Trustee of an opinion of counsel or other evidence
satisfactory to the Trustee to the effect that such substitution will not  cause
the  Trust Estate  (or segregated pool  of assets) to  be subject to  the tax on
"prohibited transactions" imposed by Code Section 860F(a), otherwise subject the
Trust Estate  (or segregated  pool  of assets)  to  tax, cause  any  replacement
mortgage not to constitute a "qualified replacement mortgage" within the meaning
of  Code Section 860G(a)(4),  or cause the  Trust Estate (or  segregated pool of
assets) to fail to qualify as a  REMIC while any Certificates of the Series  are
outstanding.  See "The  Trust Estates--Mortgage  Loans" with  respect to certain
obligations of PHMC in connection  with defective documentation and breaches  of
representations and warranties as to the Mortgage Loans.
 
    The Trustee will be authorized to appoint a custodian to maintain possession
of  the documents relating  to the Mortgage  Loans and to  conduct the review of
such documents  described  above.  The  custodian  will  keep  and  review  such
documents as the Trustee's agent under a custodial agreement.
 
  REPRESENTATIONS AND WARRANTIES
 
    Unless  otherwise provided in the applicable Pooling and Servicing Agreement
for a Series, the Seller will represent and warrant to the Trustee, among  other
things, that as of the date of execution of the Pooling and Servicing Agreement,
with respect to the Mortgage Loans, or each Mortgage Loan, as the case may be:
 
       (i) the information set forth in the schedule of Mortgage Loans appearing
           as  an exhibit to such Pooling  and Servicing Agreement is correct in
    all material respects at the date or dates respecting which such information
    is furnished as specified therein;
 
       (ii)immediately prior to the transfer and assignment contemplated by  the
           Pooling  and Servicing  Agreement, the Seller  is the  sole owner and
    holder of the Mortgage Loan, free and  clear of any and all liens,  pledges,
    charges or security interests of any nature and has full right and authority
    to sell and assign the same;
 
       (iii)
           the Mortgage is a valid, subsisting and enforceable first lien on the
           related  Mortgaged Property, and  the Mortgaged Property  is free and
    clear of all encumbrances and liens  having priority over the first lien  of
    the  Mortgage except for liens for real estate taxes and special assessments
    not yet due and payable and liens or interests arising under or as a  result
    of  any federal,  state or  local law,  regulation or  ordinance relating to
    hazardous wastes or hazardous substances; and, if the Mortgaged Property  is
    a  condominium unit, any  lien for common charges  permitted by statute; and
    any security agreement, chattel mortgage or equivalent document related  to,
    and  delivered to the Trustee with, any Mortgage establishes in the Seller a
    valid first lien on the property  described therein and the Seller has  full
    right to sell and assign the same to the Trustee;
 
       (iv)neither  the  Seller nor  any  prior holder  of  the Mortgage  or the
           related Mortgage  Note  has modified  the  Mortgage in  any  material
    respect;  satisfied, cancelled or  subordinated the Mortgage  or the related
    Mortgage Note in  whole or in  part; or released  the Mortgaged Property  in
    whole or in part
 
                                       18
<PAGE>
    from  the  lien of  the  Mortgage; or  executed  any instrument  of release,
    cancellation, modification or satisfaction, except in each case as reflected
    in a  document delivered  by the  Seller to  the Trustee  together with  the
    related Mortgage;
 
       (v) all  taxes, governmental assessments,  insurance premiums, and water,
           sewer and municipal charges previously due and owing have been  paid,
    or  an escrow of  funds in an amount  sufficient to pay  for every such item
    which remains unpaid has  been established to the  extent permitted by  law;
    and  the Seller has not advanced funds or received any advance of funds by a
    party other than the mortgagor,  directly or indirectly (except pursuant  to
    any  Buy-Down  Loan or  Subsidy Loan  arrangement), for  the payment  of any
    amount required by the Mortgage, except for interest accruing from the  date
    of  the related Mortgage Note  or date of disbursement  of the Mortgage Loan
    proceeds, whichever is  later, to  the date which  precedes by  30 days  the
    first Due Date under the related Mortgage Note;
 
       (vi)to the best of the Seller's knowledge, there is no proceeding pending
           or  threatened for the total or partial condemnation of the Mortgaged
    Property and the Mortgaged Property is undamaged by water, fire,  earthquake
    or  earth movement, windstorm, flood, tornado or similar casualty (excluding
    casualty from the presence of  hazardous wastes or hazardous substances,  as
    to  which the Seller makes no representation), so as to affect adversely the
    value of the Mortgaged Property as security for the Mortgage Loan or the use
    for which the premises were intended;
 
       (vii)
           the Mortgaged  Property  is free  and  clear of  all  mechanics'  and
           materialmen's  liens  or  liens  in  the  nature  thereof;  provided,
    however, that this warranty  shall be deemed  not to have  been made at  the
    time  of  the  initial  issuance  of  the  Certificates  if  a  title policy
    affording, in substance, the  same protection afforded  by this warranty  is
    furnished to the Trustee by the Seller;
 
       (viii)
           except  for  Mortgage Loans  secured by  shares in  cooperatives, the
           Mortgaged Property consists of  a fee simple  or leasehold estate  in
    real property, all of the improvements which are included for the purpose of
    determining  the appraised value of the Mortgaged Property lie wholly within
    the boundaries  and  building restriction  lines  of such  property  and  no
    improvements  on adjoining  properties encroach upon  the Mortgaged Property
    (unless insured against under the applicable title insurance policy) and, to
    the  best  of  the  Seller's  knowledge,  the  Mortgaged  Property  and  all
    improvements  thereon comply with all  requirements of any applicable zoning
    and subdivision laws and ordinances;
 
       (ix)the Mortgage  Loan meets,  or  is exempt  from, applicable  state  or
           federal laws, regulations and other requirements pertaining to usury,
    and the Mortgage Loan is not usurious;
 
       (x) to  the best of the Seller's knowledge, all inspections, licenses and
           certificates required  to  be made  or  issued with  respect  to  all
    occupied portions of the Mortgaged Property and, with respect to the use and
    occupancy  of  the  same, including,  but  not limited  to,  certificates of
    occupancy and fire  underwriting certificates,  have been  made or  obtained
    from the appropriate authorities;
 
       (xi)all  payments  required to  be made  up to  the Due  Date immediately
           preceding the Cut-Off Date for such Mortgage Loan under the terms  of
    the related Mortgage Note have been made;
 
       (xii)
           the Mortgage Note, the related Mortgage and other agreements executed
           in connection therewith are genuine, and each is the legal, valid and
    binding  obligation of the maker thereof, enforceable in accordance with its
    terms except as such enforcement  may be limited by bankruptcy,  insolvency,
    reorganization or other similar laws affecting the enforcement of creditors'
    rights  generally and  by general  equity principles  (regardless of whether
    such enforcement is considered in a proceeding in equity or at law); and, to
    the best of the Seller's knowledge, all parties to the Mortgage Note and the
    Mortgage had legal capacity  to execute the Mortgage  Note and the  Mortgage
    and  each Mortgage Note and Mortgage has  been duly and properly executed by
    the mortgagor;
 
                                       19
<PAGE>
       (xiii)
           any and all  requirements of  any federal,  state or  local law  with
           respect  to the origination of  the Mortgage Loans including, without
    limitation, truth-in-lending,  real estate  settlement procedures,  consumer
    credit protection, equal credit opportunity or disclosure laws applicable to
    the Mortgage Loans have been complied with;
 
       (xiv)
           the  proceeds of the Mortgage Loans  have been fully disbursed, there
           is no  requirement for  future advances  thereunder and  any and  all
    requirements as to completion of any on-site or off-site improvements and as
    to  disbursements  of any  escrow funds  therefor  have been  complied with,
    except for escrow funds for exterior items which could not be completed  due
    to  weather; and all costs, fees and expenses incurred in making, closing or
    recording the  Mortgage Loan  have  been paid,  except recording  fees  with
    respect  to  Mortgages  not recorded  as  of  the date  of  the  Pooling and
    Servicing Agreement;
 
       (xv)the Mortgage  Loan (except  any Mortgage  Loan secured  by  Mortgaged
           Property  located in Iowa, as  to which an opinion  of counsel of the
    type customarily  rendered in  such  State in  lieu  of title  insurance  is
    instead  received) is covered by an ALTA mortgagee title insurance policy or
    other generally acceptable form of policy or insurance acceptable to FNMA or
    FHLMC, issued by a  title insurer acceptable to  FNMA or FHLMC insuring  the
    originator, its successors and assigns, as to the first priority lien of the
    Mortgage  in the original principal amount  of the Mortgage Loan and subject
    only to (A) the lien of current real property taxes and assessments not  yet
    due  and payable, (B) covenants, conditions and restrictions, rights-of-way,
    easements and other matters of public record as of the date of recording  of
    such  Mortgage acceptable  to mortgage lending  institutions in  the area in
    which the Mortgaged Property is located  or specifically referred to in  the
    appraisal  performed  in  connection  with the  origination  of  the related
    Mortgage Loan, (C)  liens created pursuant  to any federal,  state or  local
    law,  regulation or ordinance  affording liens for the  costs of clean-up of
    hazardous  substances  or  hazardous  wastes  or  for  other   environmental
    protection  purposes and (D) such other matters to which like properties are
    commonly subject which do not individually, or in the aggregate,  materially
    interfere  with the benefits of the security  intended to be provided by the
    Mortgage; the Seller is the sole  insured of such mortgagee title  insurance
    policy,  the  assignment to  the Trustee  of the  Seller's interest  in such
    mortgagee title  insurance  policy  does  not  require  any  consent  of  or
    notification  to  the insurer  which  has not  been  obtained or  made, such
    mortgagee title insurance policy is in full force and effect and will be  in
    full  force and effect and inure to the benefit of the Trustee and no claims
    have been made  under such mortgagee  title insurance policy,  and no  prior
    holder  of the related Mortgage,  including the Seller, has  done, by act or
    omission, anything which would impair  the coverage of such mortgagee  title
    insurance policy;
 
       (xvi)
           the  Mortgaged Property securing each Mortgage  Loan is insured by an
           insurer acceptable to  FNMA or FHLMC  against loss by  fire and  such
    hazards as are covered under a standard extended coverage endorsement, in an
    amount  which is not less than the lesser  of 100% of the insurable value of
    the Mortgaged Property and the outstanding principal balance of the Mortgage
    Loan, but  in no  event less  than  the minimum  amount necessary  to  fully
    compensate  for  any damage  or loss  on  a replacement  cost basis;  if the
    Mortgaged Property is a condominium unit, it is included under the  coverage
    afforded  by a blanket  policy for the  project; if upon  origination of the
    Mortgage Loan, the improvements  on the Mortgaged Property  were in an  area
    identified  in  the Federal  Register  by the  Federal  Emergency Management
    Agency as having special flood hazards, a flood insurance policy meeting the
    requirements  of   the  current   guidelines   of  the   Federal   Insurance
    Administration  is in effect with  a generally acceptable insurance carrier,
    in an  amount representing  coverage not  less  than the  least of  (A)  the
    outstanding  principal balance of the Mortgage  Loan, (B) the full insurable
    value and (C) the maximum amount of insurance which was available under  the
    Flood  Disaster  Protection Act  of 1973;  and  each Mortgage  obligates the
    mortgagor thereunder to maintain all such insurance at the mortgagor's  cost
    and expense;
 
        (xvii)  to  the best  of the  Seller's knowledge,  there is  no default,
    breach, violation or event  of acceleration existing  under any Mortgage  or
    the    related   Mortgage    Note   and    no   event    which,   with   the
 
                                       20
<PAGE>
    passage of time  or with  notice and  the expiration  of any  grace or  cure
    period,   would  constitute  a  default,   breach,  violation  or  event  of
    acceleration; and the Seller has  not waived any default, breach,  violation
    or  event of acceleration;  no foreclosure action is  threatened or has been
    commenced with respect to the Mortgage Loan;
 
        (xviii) no  Mortgage  Note  or  Mortgage is  subject  to  any  right  of
    rescission,  set-off,  counterclaim  or defense,  including  the  defense of
    usury, nor will the operation  of any of the terms  of the Mortgage Note  or
    Mortgage,  or the  exercise of  any right  thereunder, render  such Mortgage
    unenforceable, in  whole  or  in  part,  or  subject  it  to  any  right  of
    rescission,  set-off,  counterclaim  or defense,  including  the  defense of
    usury, and no such right of rescission, set-off, counterclaim or defense has
    been asserted with respect thereto;
 
       (xix)
           each Mortgage  Note  is payable  in  monthly payments,  resulting  in
           complete  amortization of the  Mortgage Loan over a  term of not more
    than 360 months;
 
       (xx)each Mortgage contains customary  and enforceable provisions such  as
           to  render the rights and remedies of the holder thereof adequate for
    the realization  against  the Mortgaged  Property  of the  benefits  of  the
    security,  including  realization by  judicial  foreclosure (subject  to any
    limitation arising  from any  bankruptcy, insolvency  or other  law for  the
    relief  of debtors), and there is  no homestead or other exemption available
    to the mortgagor which would interfere with such right of foreclosure;
 
       (xxi)
           to the best of  the Seller's knowledge, no  mortgagor is a debtor  in
           any state or federal bankruptcy or insolvency proceeding;
 
        (xxii)  each  Mortgaged Property  is located  in  the United  States and
    consists of a one- to four-unit single family residential property which may
    include a detached home, townhouse, condominium unit, unit in a planned unit
    development or a leasehold interest with respect to any of the foregoing or,
    in the case of Mortgage Loans  secured by shares of cooperatives, leases  or
    occupancy agreements;
 
        (xxiii) no payment required under any Mortgage Loan is more than 30 days
    past due and no Mortgage Loan had more than one delinquency in the preceding
    13 months; and
 
        (xxiv)  with respect to  each Buy-Down Loan, the  funds deposited in the
    Buy-Down Fund, if any, will be sufficient, together with interest thereon at
    the rate  customarily  received by  the  Seller on  such  funds,  compounded
    monthly,  and adding the  amounts required to  be paid by  the mortgagor, to
    make the scheduled payments stated in the Mortgage Note for the term of  the
    buy-down agreement.
 
    No representations or warranties are made by the Seller as to the absence or
effect  of  hazardous wastes  or hazardous  substances on  any of  the Mortgaged
Properties or on  the lien of  any Mortgage or  with respect to  the absence  or
effect  of  fraud in  the  origination of  any Mortgage  Loan,  and any  loss or
liability resulting  from  the presence  or  effect of  such  hazardous  wastes,
hazardous  substances or fraud  will be borne  solely by Certificateholders. See
"Certain Legal  Aspects  of the  Mortgage  Loans--Environmental  Considerations"
below.
 
    See  "The Trust  Estates--Mortgage Loans" for  a description  of the limited
remedies available in connection with breaches of the foregoing  representations
and warranties.
 
  OPTIONAL REPURCHASES
 
    The Seller may, at its option, repurchase any defaulted Mortgage Loan if, in
the  Seller's judgment,  the related default  is not  likely to be  cured by the
borrower, at a price equal to the unpaid principal balance thereof plus  accrued
interest thereon and under the conditions set forth in the applicable Prospectus
Supplement.
 
                                       21
<PAGE>
                        DESCRIPTION OF THE CERTIFICATES
 
GENERAL
 
    Each  Series  of  Certificates will  be  issued  pursuant to  a  Pooling and
Servicing Agreement (the "Pooling and Servicing Agreement") between the  Seller,
the  Servicer, and  the Trustee named  in the  applicable Prospectus Supplement.
Each Pooling and Servicing Agreement  will contain substantially the same  terms
and  conditions, except  for revisions of  defined terms  and certain provisions
regarding distributions to Certificateholders, credit support and other  similar
matters.  Illustrative forms of Pooling and  Servicing Agreement have been filed
as exhibits to the  Registration Statement of which  this Prospectus is a  part.
The  following summaries describe certain  provisions common to the Certificates
and to each Pooling and Servicing Agreement. 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 Pooling and Servicing Agreement for each Series
of Certificates and  the applicable Prospectus  Supplement. Wherever  particular
sections  or defined terms  of the Pooling and  Servicing Agreement are referred
to, such sections or defined terms are thereby incorporated herein by  reference
from  the forms  of Pooling  and Servicing  Agreement filed  as exhibits  to the
Registration Statement.
 
    Each Series  of  Certificates  will represent  ownership  interests  in  the
related  Trust Estate. An election  may be made to treat  the Trust Estate (or a
segregated pool of assets therein) with respect to a Series of Certificates as a
REMIC. If such  an election is  made, such Series  will consist of  one or  more
Classes  of  Certificates that  will  represent "regular  interests"  within the
meaning of Code Section 860G(a)(1) (such Class or Classes collectively  referred
to as the "Regular Certificates") and one Class or Subclass of Certificates with
respect to each REMIC that will be designated as "residual interests" within the
meaning  of Code  Section 860G(a)(2) (the  "Residual Certificates") representing
the right to receive distributions as specified in the Prospectus Supplement for
such Series. See "Certain Federal Income Tax Consequences" herein.
 
    The Seller may sell certain Classes  or Subclasses of the Certificates of  a
Series, including one or more Classes of Subordinated Certificates, in privately
negotiated  transactions  exempt  from registration  under  the  Securities Act.
Alternatively, if  so specified  in  a Prospectus  Supplement relating  to  such
Subordinated  Certificates,  the Seller  may offer  one or  more Classes  of the
Subordinated Certificates  of a  Series by  means of  this Prospectus  and  such
Prospectus Supplement.
 
    Unless  otherwise  specified in  the  applicable Prospectus  Supplement with
respect to a Series of Certificates, each Certificate offered hereby and by  the
applicable  Prospectus Supplement will  be issued in  fully registered form. The
Certificates of  a  Series  offered  hereby  and  by  means  of  the  applicable
Prospectus  Supplements will be  transferable and exchangeable  at the office or
agency maintained by the Trustee or such other entity for such purpose set forth
in the related  Prospectus Supplement. No  service charge will  be made for  any
transfer  or exchange of Certificates, but the  Trustee or such other entity may
require payment  of a  sum sufficient  to cover  any tax  or other  governmental
charge  in  connection with  such transfer  or  exchange. In  the event  that an
election is made  to treat  the Trust  Estate (or  a segregated  pool of  assets
therein)  as a REMIC, no  legal or beneficial interest in  all or any portion of
the "residual interest" thereof  may be transferred without  the receipt by  the
transferor  and the  Trustee of an  affidavit signed by  the transferee stating,
among other things, that the transferee  (i) is not a disqualified  organization
within  the meaning  of Code  Section 860E(e) or  an agent  (including a broker,
nominee, or  middleman) thereof  and  (ii) understands  that  it may  incur  tax
liabilities  in excess  of any  cash flows  generated by  the residual interest.
Further, the transferee must state in the affidavit that it (x) historically has
paid its debts as they have come due, (y) intends to pay its debts as they  come
due  in the  future and  (z) intends  to pay  taxes associated  with holding the
residual interest as they become due. The transferor must certify to the Trustee
that, as of the time of the transfer, it has no actual knowledge that any of the
statements made in the transferee affidavit are false and no reason to know that
the statements made by the  transferee pursuant to clauses  (x), (y) and (z)  of
the   preceding   sentence  are   false.   See  "Certain   Federal   Income  Tax
Consequences--Federal Income Tax
 
                                       22
<PAGE>
Consequences for REMIC Certificates--Taxation of Residual
Certificates--Tax-Related Restrictions on Transfer of Residual Certificates." In
the event  that  an election  is  not  made to  treat  the Trust  Estate  (or  a
segregated  pool of assets therein) as  a REMIC, no Subordinated Certificate may
be transferred unless an appropriate ruling  of the Internal Revenue Service  or
opinion  of counsel is obtained to the  effect that the transfer will not result
in the arrangement contemplated under the Pooling and Servicing Agreement  being
treated as an association taxable as a corporation under the Code.
 
    Unless   otherwise  specified  in   the  applicable  Prospectus  Supplement,
distributions  to  Certificateholders  of  all  Series  (other  than  the  final
distribution  in retirement of the Certificates) will be made by check mailed to
the address of  the person  entitled thereto as  it appears  on the  certificate
register,  except that, with  respect to any holder  of a Certificate evidencing
not less  than  a certain  minimum  denomination  set forth  in  the  applicable
Prospectus   Supplement,  distributions  will  be   made  by  wire  transfer  in
immediately available funds,  provided that  the Servicer, or  the Paying  Agent
acting  on behalf  of the Servicer,  shall have been  furnished with appropriate
wiring instructions  not less  than three  business days  prior to  the  related
Distribution  Date. The final distribution in retirement of Certificates will be
made only upon presentation and surrender  of the Certificates at the office  or
agency  maintained by the Trustee or other entity for such purpose, as specified
in the final distribution notice to Certificateholders.
 
    A Series of  Certificates will consist  of one or  more Classes of  Standard
Certificates   or  Stripped  Certificates  (referred  to  hereinafter  sometimes
collectively as "Percentage Certificates") or two or more Classes of Multi-Class
Certificates (each as described below).
 
PERCENTAGE CERTIFICATES
 
    Each Series of Percentage  Certificates may include one  or more Classes  of
Standard  Certificates  or  Stripped Certificates,  any  Class of  which  may be
divided into two  or more Subclasses.  The Standard Certificates  of each  Class
will  evidence  fractional  undivided  interests in  all  of  the  principal and
interest (to  the extent  of the  Net Mortgage  Interest Rate)  payments on  the
Mortgage  Loans comprising the Trust Estate  related to such Series. Each holder
of  a  Standard  Certificate  of  a  Class  will  be  entitled  to  receive  its
Certificate's percentage interest of the portion of the Pool Distribution Amount
(as  defined below)  allocated to  such Class.  The percentage  interest of each
Standard Certificate will be  equal to the percentage  obtained by dividing  the
aggregate  unpaid principal  balance of the  Mortgage Loans  represented by such
Standard Certificate as of  the Cut-Off Date by  the aggregate unpaid  principal
balance  of the Mortgage  Loans represented by all  the Standard Certificates of
the same Class as of the Cut-Off Date.
 
    The Stripped Certificates of each  Class will evidence fractional  undivided
interests in specified portions of the principal and/or interest payments on the
Mortgage  Loans comprising the Trust Estate  related to such Series. The holders
of the Stripped Certificates of each Class will be entitled to receive a portion
(which may be zero) as specified in the applicable Prospectus Supplement of  the
principal  distributions comprising the Pool  Distribution Amount, and a portion
(which may be zero) as specified in the applicable Prospectus Supplement of  the
interest   distributions  comprising  the  Pool   Distribution  Amount  on  each
Distribution Date.
 
    In the case of  Classes of Stripped  Certificates representing interests  in
interest  distributions on the Mortgage Loans and not in principal distributions
on the  Mortgage  Loans,  such  Certificates will  be  denominated  in  notional
amounts. The aggregate original notional amount for a Class of such Certificates
will  be equal to the aggregate unpaid principal balance (or a specified portion
thereof) of  the  Mortgage  Loans  as  of the  Cut-Off  Date  specified  in  the
applicable  Prospectus  Supplement. The  notional amount  of each  such Stripped
Certificate will  be  used to  calculate  the holder's  pro  rata share  of  the
interest distributions on the Mortgage Loans allocated to that Class and for the
determination  of  certain other  rights of  holders of  such Class  of Stripped
Certificates and will not represent an  interest in, or entitle any such  holder
to any distribution with respect to, any principal distributions on the Mortgage
Loans.  Each such Certificate's  pro rata share of  the interest distribution on
the Mortgage Loans on each Distribution  Date will be calculated by  multiplying
the  interest distributions on  the Mortgage Loans  allocated to its  Class by a
fraction, the  numerator  of which  is  the  original notional  amount  of  such
Stripped  Certificate and  the denominator  of which  is the  aggregate original
notional amount of all the Stripped Certificates of its Class.
 
                                       23
<PAGE>
    The interest of a Class of Percentage Certificates representing an  interest
in a Trust Estate (or a segregated pool of assets therein) with respect to which
an  election to be  treated as a REMIC  has been made may  be fixed as described
above or may  vary over  time as  a result  of prepayments  received and  losses
realized  on the underlying Mortgage Loans.  A Series of Percentage Certificates
comprised of Classes whose percentage interests in the Trust Estate may vary  is
referred   to  herein   as  a   Series  of   "Shifting  Interest  Certificates."
Distributions on,  and  subordination  arrangements with  respect  to,  Shifting
Interest Certificates are discussed below under the headings "Description of the
Certificates--Distributions  to Percentage Certificateholders--Shifting Interest
Certificates" and "Credit Support--Subordination--Shifting Interest
Certificates."
 
MULTI-CLASS CERTIFICATES
 
    Each Series may  include two  or more Classes  of Multi-Class  Certificates.
Each Multi-Class Certificate will be assigned a Stated Amount. The Stated Amount
may  be based on an  amount of principal of the  underlying Mortgage Loans or on
the value of  an amount  of future  cash flows  from the  related Trust  Estate,
without distinction as to principal and interest received on the Mortgage Loans.
The  initial  Stated  Amount  of  each  Class  within  a  Series  of Multi-Class
Certificates will be specified in the applicable Prospectus Supplement. Interest
on the Classes of Multi-Class Certificates will be paid at rates specified in or
determined as specified in the applicable Prospectus Supplement, and will accrue
in the manner  specified therein.  Each Series of  Multi-Class Certificates  may
include one or more Classes of Certificates on which interest accrues but is not
payable  until such  time as specified  in the  applicable Prospectus Supplement
("Compound Interest Certificates"), and interest accrued on any such Class  will
be added to the Stated Amount thereof in the manner described therein.
 
DISTRIBUTIONS TO PERCENTAGE CERTIFICATEHOLDERS
 
  CERTIFICATES OTHER THAN SHIFTING INTEREST CERTIFICATES
 
    Except as otherwise specified in the applicable Prospectus Supplement, on or
about  the  17th day  of each  month in  which a  Distribution Date  occurs (the
"Determination Date"), the Servicer will  determine the amount of the  principal
and interest payments on the Mortgage Loans which will be distributed to holders
of  each  Class  and  Subclass  of  Percentage  Certificates  on  the succeeding
Distribution Date. Such amounts will be  distributed, pro rata, to holders of  a
Class  or  Subclass of  Percentage  Certificates (other  than  Shifting Interest
Certificates) except, in  the case of  Subordinated Certificateholders, for  any
amounts required to be paid to the holders of the related Senior Certificates or
deposited in the related Subordination Reserve Fund, if any. If the Certificates
of  a Class include two  or more Subclasses, the  allocation of distributions of
principal and interest among such Subclasses will be as specified in the related
Prospectus Supplement.
 
    CALCULATION OF  DISTRIBUTABLE  AMOUNTS.   On  each Determination  Date,  the
Servicer   will  calculate   the  "Distributable   Amount"  for   the  following
Distribution Date for each Class of Certificates. Unless otherwise specified  in
the  applicable Prospectus Supplement,  the Distributable Amount  for a Class of
Senior Certificates (a "Senior Class") of  a Series on a Distribution Date  (the
"Senior Class Distributable Amount") will be an amount equal to the sum of:
 
           (i)
           the  aggregate  undivided  interest, expressed  as  a  percentage and
           specified in the applicable  Prospectus Supplement, evidenced by  all
    Certificates of such Senior Class (the "Senior Class Principal Portion") of:
 
           (a) all  scheduled payments of principal on each outstanding Mortgage
               Loan that became due on  the Due Date immediately preceding  such
       Distribution  Date in accordance  with the amortization  schedules of the
       related Mortgage  Loans  (as adjusted  to  give effect  to  any  previous
       prepayments),  whether or not such payments were actually received by the
       Servicer (the aggregate of  such scheduled payments due  on any such  Due
       Date  being referred to herein as "Scheduled Principal"), and all partial
       principal  prepayments  received  by  the   Servicer  on  or  after   the
       Determination  Date  in  the  month  preceding  the  month  in  which the
       Distribution Date occurs (or after the  Cut-Off Date, in the case of  the
       first Distribution Date) and prior to the Determination Date occurring in
       the month in which the Distribution Date occurs ("Curtailments");
 
                                       24
<PAGE>
           (b) all principal prepayments in full received by the Servicer during
               the  month preceding  the month  in which  such Distribution Date
       occurs; and
 
           (c) the unpaid  principal  balance,  less any  amounts  with  respect
               thereto   constituting   Late   Payments   (as   herein  defined)
       attributable to principal,  and less any  unreimbursed Periodic  Advances
       with  respect thereto, of each Mortgage Loan which was repurchased by the
       Seller or purchased by the Servicer, as the case may be (as described  in
       "The  Trust Estates--Mortgage Loans--Assignment of  Mortgage Loans to the
       Trustee",  "--Optional  Repurchases,"  and  "The  Pooling  and  Servicing
       Agreement--Termination;  Purchase of Certificates"), and of each Mortgage
       Loan in respect of which property was acquired, liquidated or foreclosed,
       and with respect to which  Liquidation Proceeds (as defined herein)  were
       received, during the month preceding the month in which such Distribution
       Date  occurs,  determined as  of  the date  each  such Mortgage  Loan was
       repurchased or purchased, as the case may be, or as of the date each such
       related property was acquired, liquidated or foreclosed, as the case  may
       be; and
 
          (ii)
           interest   at  the  applicable  Pass-Through  Rate  from  the  second
           preceding Due  Date  to  the  Due  Date  immediately  preceding  such
    Distribution  Date on  the Senior Class  Principal Portion  of the aggregate
    principal balance  of  the Mortgage  Loans  as  of the  Cut-Off  Date,  less
    scheduled  amortization of  principal thereon and  any principal prepayments
    with respect thereto through the  second preceding Due Date (the  "Scheduled
    Principal  Balance"), whether or not such  interest was actually received by
    the Servicer; provided that interest attributable to the accrual of interest
    on any prepaid  Mortgage Loan  at the Net  Mortgage Interest  Rate for  such
    Mortgage  Loan from the date of its  prepayment in full through the last day
    of the month in which such prepayment in full occurred ("Prepayment Interest
    Shortfall") is included only to the extent that funds for such purposes  are
    available out of the aggregate Servicing Fees; and
 
         (iii)
           the  sum of  (a) the  portion that was  included in  the Senior Class
           Distributable Amount on a  prior Distribution Date  of the amount  of
    each scheduled payment of principal and interest on a Mortgage Loan not paid
    by  the mortgagor  when due, net  of any unreimbursed  Periodic Advance with
    respect thereto that was included in the Distributable Amount of each  Class
    on  a prior Distribution Date but was  not included in the Pool Distribution
    Amount until  the  current  Distribution  Date (such  net  amount,  a  "Late
    Payment"),  less the  aggregate amount, if  any, received by  the holders of
    such Senior  Certificates  on any  prior  Distribution Date  or  Dates  with
    respect  to such  Late Payment from  amounts otherwise  distributable to the
    holders  of  Subordinated  Certificates  and  from  any  credit  enhancement
    available for the benefit of the Senior Certificateholders, and (b) interest
    on  the amount set forth  in clause (a) above  at the Pass-Through Rate from
    the Distribution Date on which such  Late Payment was first included in  the
    Distributable   Amount  for   such  Senior   Certificates  to   the  current
    Distribution Date (the "Late Payment  Period"); provided that the  foregoing
    amount  will  be included  in  the Senior  Class  Distributable Amount  on a
    Distribution Date only  to the extent  such amount is  included in the  Pool
    Distribution Amount with respect to such Distribution Date.
 
    Unless  otherwise  specified in  the  applicable Prospectus  Supplement, the
Distributable Amount for a Class of  Subordinated Certificates of a Series on  a
Distribution  Date (the  "Subordinated Class  Distributable Amount")  will be an
amount equal to the sum of:
 
           (i)
           the aggregate  undivided  interest,  expressed as  a  percentage  and
           specified  in the applicable Prospectus  Supplement, evidenced by all
    Subordinated Certificates (the "Subordinated Class Principal Portion") of:
 
           (a) all Scheduled Principal and all Curtailments;
 
           (b) all principal prepayments in full received by the Servicer during
               the month preceding  the month  in which  such Distribution  Date
       occurs; and
 
           (c) the  unpaid  principal  balance, less  any  amounts  with respect
               thereto constituting Late Payments attributable to principal, and
       less any unreimbursed Periodic Advances with respect
 
                                       25
<PAGE>
       thereto, of each  Mortgage Loan which  was repurchased by  the Seller  or
       purchased  by the Servicer, and of each Mortgage Loan in respect of which
       property was  acquired, liquidated  or foreclosed,  and with  respect  to
       which  Liquidation Proceeds were received, during the month preceding the
       month in which such Distribution Date  occurs, determined as of the  date
       each such Mortgage Loan was repurchased or purchased, as the case may be,
       or  as of the date each such related property was acquired, liquidated or
       foreclosed, as the case may be; and
 
          (ii)
           interest  at  the  applicable  Pass-Through  Rate  from  the   second
           preceding  Due  Date  to  the  Due  Date  immediately  preceding such
    Distribution Date  on  the  Subordinated  Class  Principal  Portion  of  the
    Scheduled  Principal Balance of  the Mortgage Loans  as of the Determination
    Date preceding  such Distribution  Date, whether  or not  such interest  was
    actually  received  with  respect  to  the  Mortgage  Loans;  provided  that
    Prepayment Interest Shortfall is included only to the extent that funds  for
    such purposes are available from the aggregate Servicing Fees; and
 
         (iii)
           the   sum  of  (a)  each  Late  Payment  that  was  included  in  the
           Subordinated Class Distributable Amount on a prior Distribution  Date
    plus the aggregate amount, if any, received by the Senior Certificateholders
    on  any prior Distribution Date  or Dates with respect  to such Late Payment
    from amounts  otherwise  available  for  distribution  to  the  Subordinated
    Certificateholders  on such  prior Distribution Date  or Dates,  or from the
    Subordination Reserve Fund and not attributable to the Initial Deposit,  and
    (b) interest on the amount set forth in clause (a) above at the Pass-Through
    Rate during the Late Payment Period; provided that the foregoing amount will
    be   included  in  the  Subordinated  Class  Distributable  Amount  on  such
    Distribution Date only  to the extent  such amount is  included in the  Pool
    Distribution Amount with respect to such Distribution Date.
 
    DETERMINATION  OF AMOUNTS TO BE DISTRIBUTED.   Unless otherwise specified in
the applicable  Prospectus  Supplement,  funds  available  for  distribution  to
Certificateholders  of a Series of Percentage  Certificates with respect to each
Distribution Date for such Series (the  "Pool Distribution Amount") will be  the
sum  of all  previously undistributed payments  or other receipts  on account of
principal (including principal prepayments and Liquidation Proceeds, if any) and
interest on or in respect of the related Mortgage Loans received by the Servicer
after the Cut-Off Date (except for amounts due on or prior to the Cut-Off Date),
or received by the Servicer  on or prior to the  Cut-Off Date but due after  the
Cut-Off  Date, in either case received on or prior to the business day preceding
the Determination Date in the month in which such Distribution Date occurs, plus
all Periodic Advances made by  the Servicer with respect  to payments due to  be
received on the Mortgage Loans on the Due Date preceding such Distribution Date,
but excluding the following:
 
       (a) amounts received as late payments of principal or interest respecting
           which  the  Servicer previously  has  made one  or  more unreimbursed
    Periodic Advances;
 
       (b) unreimbursed Periodic Advances  with respect  to liquidated  Mortgage
           Loans;
 
       (c) those  portions of each payment of  interest on a particular Mortgage
           Loan which represent (i) the Fixed  Retained Yield, if any, and  (ii)
    the   applicable  Servicing  Fee,  as   adjusted  in  respect  of  principal
    prepayments  in   full  as   described  in   "Servicing  of   the   Mortgage
    Loans--Adjustment  to  Servicing  Fee in  Connection  with  Prepaid Mortgage
    Loans" below;
 
       (d) all amounts representing scheduled payments of principal and interest
           due after  the  Due  Date  occurring  in  the  month  in  which  such
    Distribution Date occurs;
 
       (e) all  principal  prepayments  in  full  and  all  proceeds  (including
           Liquidation Proceeds) of any Mortgage Loans, or property acquired  in
    respect  thereof, liquidated, foreclosed,  purchased or repurchased pursuant
    to the applicable Pooling and Servicing Agreement, received on or after  the
    Due  Date occurring in the month in  which such Distribution Date occurs and
    all Curtailments received by the Servicer on or after the Determination Date
    occurring in  the month  in which  such Distribution  Date occurs,  and  all
    related payments of interest on such amounts;
 
                                       26
<PAGE>
       (f) that  portion  of Liquidation  Proceeds  which represents  any unpaid
           Servicing Fee to which the Servicer is entitled and any unpaid  Fixed
    Retained Yield;
 
       (g) if  an election has been made to treat the applicable Trust Estate as
           a  REMIC,  any   Net  Foreclosure  Profits   with  respect  to   such
    Distribution  Date. "Net Foreclosure Profits" with respect to a Distribution
    Date will be  the excess  of (i) the  portion of  aggregate net  Liquidation
    Proceeds   which  represents  the  amount  by  which  aggregate  profits  on
    Liquidated Loans with respect to  which net Liquidation Proceeds exceed  the
    unpaid  principal  balance  thereof  plus accrued  interest  thereon  at the
    Mortgage Interest Rate  over (ii)  aggregate realized  losses on  Liquidated
    Loans  with  respect to  which net  Liquidation Proceeds  are less  than the
    unpaid principal  balance  thereof plus  accrued  interest at  the  Mortgage
    Interest Rate.
 
       (h) all   amounts  representing  certain  expenses  reimbursable  to  the
           Servicer and other amounts permitted to be withdrawn by the  Servicer
    from  the  Certificate  Account, in  each  case pursuant  to  the applicable
    Pooling and Servicing Agreement;
 
       (i) all amounts in the nature  of late fees, assumption fees,  prepayment
           fees  and  similar  fees which  the  Servicer is  entitled  to retain
    pursuant to the applicable Pooling and Servicing Agreement; and
 
       (j) reinvestment earnings on payments received in respect of the Mortgage
           Loans.
 
    The Servicer will calculate the portion of the Distributable Amount for each
Class of the Series that  is available to be paid  out of the Pool  Distribution
Amount  on such  date. The portion  so available  on a Distribution  Date to the
Senior   Certificateholders   and   to   the   Subordinated   Certificateholders
(respectively, the "Senior Class Pro Rata Share" and the "Subordinated Class Pro
Rata  Share")  will  be  the  amount  equal  to  the  product  of  (a)  the Pool
Distribution Amount for such date and (b)  a fraction the numerator of which  is
the  Distributable Amount  for such  Class on such  date and  the denominator of
which is the sum of the Distributable Amounts for such Series on such date.
 
    On each Distribution  Date for  a Series of  Percentage Certificates  (other
than  Shifting Interest Certificates), the holders of the Senior Certificates of
such Series will be entitled to receive the Senior Class Pro Rata Share of  such
Class  on such Distribution Date. In  addition, to the extent credit enhancement
is available on such  Distribution Date, the  Senior Certificateholders will  be
entitled  to receive the  amount by which the  Senior Class Distributable Amount
plus  any  Senior  Class  Carryover   Shortfall  (as  defined  below)  on   such
Distribution  Date exceeds the Senior Class  Pro Rata Share on such Distribution
Date (such excess  being referred to  herein as the  "Senior Class  Shortfall").
Such  credit  support  includes:  (a)  amounts  otherwise  distributable  to the
Subordinated Certificateholders on such Distribution Date and amounts  available
for  such  purpose in  the Subordination  Reserve Fund  as described  below; (b)
amounts  held  in   the  Certificate   Account  for   future  distributions   to
Certificateholders;   and  (c)  amounts  available  under  any  form  of  credit
enhancement (other  than subordination)  which is  specified in  the  applicable
Prospectus  Supplement.  See "Credit  Support" below.  The  manner in  which any
available credit support will  be allocated among Subclasses  of a Senior  Class
will  be set forth in the applicable  Prospectus Supplement. With respect to any
Distribution Date, the "Senior Class  Carryover Shortfall" means the excess,  if
any, of (a) the amount the Senior Certificateholders were entitled to receive on
the  prior  Distribution  Date  less the  amount  the  Senior Certificateholders
received on such prior Distribution Date, together with interest thereon at  the
Pass-Through Rate of such Senior Class from such prior Distribution Date through
the  current Distribution Date, over (b) the  portion of the amount specified in
clause (a) constituting Late Payments, together with interest on such portion at
the applicable Pass-Through Rate from  such prior Distribution Date through  the
current Distribution Date, to the extent such Late Payments and interest thereon
are  included  in  the Pool  Distribution  Amount  with respect  to  the current
Distribution Date.
 
    With respect to  a Series  of Percentage Certificates  (other than  Shifting
Interest  Certificates) including a Class of Subordinated Certificates, once the
Subordinated Amount is  reduced to  zero, any remaining  Senior Class  Shortfall
with  respect to a  Class of Senior  Certificates will cease  to be payable from
amounts otherwise
 
                                       27
<PAGE>
distributable to  the Subordinated  Certificateholders and  the amounts  in  the
related  Subordination Reserve  Fund, if  any, except  that the  portion of such
Senior Class Shortfall which is attributable  to the accrual of interest on  the
Senior  Class Carryover Shortfall (the  "Senior Class Shortfall Accruals") shall
continue to bear interest  at the applicable Pass-Through  Rate, and the  Senior
Certificateholders  shall continue to have a  preferential right to be paid such
amounts   from   distributions   otherwise   available   to   the   Subordinated
Certificateholders   until  such  amount  (including  interest  thereon  at  the
applicable   Pass-Through    Rate)    is    paid   in    full.    See    "Credit
Support--Subordination" below.
 
    The  Subordinated  Certificateholders will  be  entitled to  receive  on any
Distribution Date an amount equal to the Subordinated Class Pro Rata Share less:
(a) any  amounts required  to be  distributed to  the Senior  Certificateholders
pursuant   to   the   subordination   of   the   rights   of   the  Subordinated
Certificateholders as described below; and (b) any amounts necessary to fund the
Subordination Reserve Fund as described below. See "Credit
Support--Subordination" below.
 
  SHIFTING INTEREST CERTIFICATES
 
    On each Distribution Date  for a series  of Shifting Interest  Certificates,
the  Servicer will distribute on behalf of the Trustee or cause the Paying Agent
to distribute, as the case may be, to  the holders of record on the Record  Date
of a Class of Senior Certificates, to the extent of the Pool Distribution Amount
with  respect to such  Distribution Date (as  determined by the  Servicer on the
related Determination Date in the same manner as described above with respect to
Percentage Certificates other than Shifting Interest Certificates) and prior  to
any  distribution being made on the related Subordinated Certificates, an amount
equal to the  Senior Class  Distribution Amount. The  Senior Class  Distribution
Amount  will  (except  as  otherwise  set  forth  in  the  applicable Prospectus
Supplement) be calculated  for any Distribution  Date as the  lesser of (x)  the
Pool Distribution Amount for such Distribution Date and (y) the sum of:
 
           (i)
           one  month's  interest at  the applicable  Pass-Through Rate  on such
           Class's outstanding  principal balance  (less,  if specified  in  the
    applicable  Prospectus  Supplement, (a)  the amount  by which  the aggregate
    Prepayment Interest Shortfall  with respect to  the preceding month  exceeds
    the  aggregate Servicing Fees, in  each case allocated to  such Class on the
    basis set forth in the related Prospectus Supplement and/or (b) one  month's
    interest  at  the  applicable Net  Mortgage  Interest Rate  on  such Class's
    percentage, specified  in  the  applicable  Prospectus  Supplement,  of  the
    Scheduled Principal Balance of each Special Hazard Mortgage Loan (as defined
    below) covered by clause (iv) below);
 
          (ii)
           if  distribution  of the  amount of  interest calculated  pursuant to
           clause (i) above on any prior Distribution Date was not made in  full
    on  such  prior Distribution  Date, an  amount equal  to (a)  the difference
    between (x) the  amount of interest  which the holders  of such Class  would
    have  received on the  prior Distribution Date if  there had been sufficient
    funds available in the  Certificate Account and (y)  the amount of  interest
    actually  distributed to such  holders on such  prior Distribution Date (the
    "Unpaid Interest Shortfall")  less (b) the  aggregate amount distributed  on
    Distribution  Dates subsequent to such  prior Distribution Date with respect
    to the Unpaid Interest Shortfall;
 
         (iii)
           such Class's  percentage, calculated  as provided  in the  applicable
           Prospectus Supplement, of (a) all scheduled payments of principal due
    on each outstanding Mortgage Loan, on the Due Date occurring in the month in
    which  the Distribution Date  occurs, (b) all  partial principal prepayments
    received by  the  Servicer in  reduction  of  the unpaid  principal  of  any
    Mortgage  Loan on or after the Determination Date in the month preceding the
    month in which the Distribution Date  occurs (or after the Cut-Off Date,  in
    the case of the first Distribution Date) and prior to the Determination Date
    occurring in the month in which the Distribution Date occurs, and (c) except
    for  Special  Hazard  Mortgage  Loans  covered  by  clause  (iv)  below, the
    Scheduled Principal  Balance  of  each  Mortgage  Loan  which,  during  such
    preceding month, (i) was the subject of a principal prepayment in full, (ii)
    became a liquidated Mortgage Loan, or (iii) was repurchased by the Seller or
    purchased  by the person  or persons specified  in the applicable Prospectus
    Supplement pursuant to the Pooling and Servicing Agreement; and
 
                                       28
<PAGE>
          (iv)
           such Class's  specified percentage  of the  net Liquidation  Proceeds
           from  any Mortgage  Loan that became  a Special  Hazard Mortgage Loan
    during such preceding month (but only if the Special Hazard Termination Date
    (as defined below) has occurred);
 
provided that, if such Distribution Date  falls on or after the Cross-Over  Date
(i.e.,  the date on which the amount of principal payments on the Mortgage Loans
to which the holders of the  related Subordinated Certificates are entitled  has
been reduced to zero as a result of the allocation of losses to the Subordinated
Certificates),  then the Senior Class Distribution Amount will instead equal the
lesser of (x) the Pool Distribution Amount and (y) the sum of the items referred
to above plus the amount by which such Class's outstanding principal balance  as
of  such Distribution  Date exceeds the  Pool Scheduled Principal  Balance as of
such  Distribution  Date.  The  Pool  Scheduled  Principal  Balance  as  of  any
Distribution  Date is the  aggregate of the Scheduled  Principal Balances of all
Mortgage Loans in a Trust Estate that  were outstanding on the first day of  the
month  prior  to the  month  in which  such  Distribution Date  falls.  The Pool
Scheduled  Principal  Balance  is  determined  after  taking  into  account  all
Curtailments applied by the Servicer on such first day of the month prior to the
month  in  which  such  Distribution Date  falls.  Under  its  current servicing
practices, Curtailments received  in any month  are applied by  the Servicer  in
reduction of the unpaid principal balance of the related Mortgage Loan as of the
first day of such month.
 
    If  so provided in the applicable Prospectus Supplement, one or more Classes
of Senior  Certificates  will also  be  entitled to  receive,  as its  or  their
specified  percentage(s) referred  to in clauses  (y)(iii)(b) and (y)(iii)(c)(i)
above, all partial principal prepayments  and all principal prepayments in  full
on the Mortgage Loans in the related Trust Estate under the circumstances or for
the period of time specified therein, which will have the effect of accelerating
the  amortization  of the  Senior Certificates  while increasing  the respective
interest evidenced by the Subordinated Certificates in the related Trust Estate.
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.
 
    If the Special Hazard Termination Date would occur on any Distribution  Date
under  the circumstances  referred to in  "Credit Support--Subordination" below,
the Senior Class Distribution  Amount for each Class  of Senior Certificates  of
such  Series calculated  as set  forth in the  two preceding  paragraphs will be
modified to the extent described in such section.
 
    Amounts distributed to a Class of Senior Certificates on a Distribution Date
will be deemed to be applied first  to the payment of current interest, if  any,
due  on such Class (i.e., the amount calculated pursuant to clause (y)(i) of the
third preceding  paragraph),  second  to  the payment  of  any  Unpaid  Interest
Shortfall  (i.e.,  the  amount calculated  pursuant  to clause  (y)(ii)  of such
paragraph) and third  to the payment  of principal,  if any, due  on such  Class
(i.e.,  the aggregate of the amounts calculated pursuant to clauses (y)(iii) and
(y)(iv) of such paragraph).
 
    As indicated above, in  the event that the  Pool Distribution Amount on  any
Distribution  Date is  not sufficient to  make the full  distribution of current
interest to the holders of a  Class of Senior Certificates entitled to  payments
of  interest, the  difference between the  amount of current  interest which the
holders of such Class would have received on such Distribution Date if there had
been sufficient  funds available  and the  amount actually  distributed will  be
added  to the amount of interest which the holders of such Class are entitled to
receive on  the  next  Distribution  Date. Unless  otherwise  specified  in  the
applicable  Prospectus Supplement, the amount of  any such interest shortfall so
carried forward will not bear interest.
 
    If the Pool Distribution Amount is insufficient on any Distribution Date  to
make  the full distribution of principal due  on a Class of Senior Certificates,
the percentage  of  principal  payments  to which  the  holders  of  the  Senior
Certificates  would be entitled on  the immediately succeeding Distribution Date
will be increased. This increase will have the effect of reducing, as a relative
matter, the respective interest of the holders of the Subordinated  Certificates
in  future payments  of principal  on the  related Mortgage  Loans. If  the Pool
Distribution Amount is not sufficient to make full distribution described  above
to  the holders of all  Classes of Senior Certificates  on any Distribution Date
(assuming   that    more    than   one    Class    or   Subclass    of    Senior
 
                                       29
<PAGE>
Certificates  of a  Series has been  issued), unless otherwise  specified in the
applicable Prospectus Supplement,  the holders  of each such  Class or  Subclass
will  share  in the  funds actually  available in  proportion to  the respective
amounts that  each such  Class or  Subclass  would have  received had  the  Pool
Distribution  Amount been sufficient  to make the  full distribution of interest
and principal due to each such Class or Subclass.
 
    Unless otherwise  provided in  the related  Prospectus Supplement,  on  each
Distribution  Date the holders of the  related Subordinated Certificates will be
entitled to receive (in the amounts specified therein if there is more than  one
Class  of Subordinated Certificates), out of funds available for distribution in
the related  Certificate  Account on  such  date, all  amounts  remaining  after
deduction  of  the amounts  required to  be  distributed to  the holders  of all
Classes of Senior Certificates of the same Series.
 
EXAMPLE OF DISTRIBUTION TO PERCENTAGE CERTIFICATEHOLDERS
 
    The following  chart  sets  forth  an example  of  the  application  of  the
foregoing  provisions  to the  first two  months of  the related  Trust Estate's
existence, assuming the Certificates are issued in the month of January, with  a
Distribution Date on the 25th of each month and a Determination Date on the 17th
of each month:
 
<TABLE>
<S>                     <C>
January 1(A)..........  Cut-Off Date.
January 2-January       The  Servicer receives any principal prepayments in full
  31(B)...............  (including prepayments due to liquidation) and  interest
                        thereon to date of prepayment.
January 31(C).........  Record Date.
February 1-February     The  Servicer receives  scheduled payments  of principal
  16(D)...............  and interest due on February 1.
February 17(E)........  Determination Date.
February 25(F)........  Distribution Date.
</TABLE>
 
- ------------------------
(A) The initial unpaid principal balance of the Mortgage Loans in a Trust Estate
    would be the aggregate unpaid principal balance of the Mortgage Loans at the
    close of business on January 1, after deducting principal payments due on or
    before such date. Those  principal payments due on  or before January 1  and
    the  related interest payments,  would not be  part of the  Trust Estate and
    would be remitted by the Servicer to the Seller when received.
 
(B) Principal prepayments in full received during this period would be  credited
    to  the Certificate  Account for  distribution to  Certificateholders on the
    February 25 Distribution Date.  When a Mortgage Loan  is prepaid in full  or
    liquidated or an insurance claim with respect to a Mortgage Loan is settled,
    interest  on the  amount prepaid,  liquidated or  received in  settlement is
    collected only from the last scheduled  Due Date to the date of  prepayment,
    liquidation  or settlement. In addition, when  a Mortgage Loan is prepaid in
    part and  such payment  is applied  as  of a  date other  than a  Due  Date,
    interest  is charged on such payment only to the date applied. To the extent
    funds are available from the aggregate Servicing Fees relating to  mortgagor
    payments  or  other  recoveries  distributed  to  Certificateholders  on the
    related Distribution Date, the Servicer would make an additional payment  to
    Certificateholders with respect to any Mortgage Loan that prepaid in full in
    January  equal to the  amount of interest  on such Mortgage  Loan at the Net
    Mortgage Interest  Rate  for  such  Mortgage Loan  from  the  date  of  such
    prepayment in full through January 31.
 
(C) Distributions in the month of February will be made to Certificateholders of
    record at the close of business on this date.
 
(D) Scheduled  monthly payments  on the  Mortgage Loans  due on  February 1, and
    partial principal prepayments received by  the Servicer in reduction of  the
    unpaid  principal balance of any Mortgage Loan prior to February 17, will be
    deposited in the Certificate Account as received by the Servicer and will be
    distributed to  Certificateholders on  the  February 25  Distribution  Date.
    Principal  prepayments  in  full,  liquidation  proceeds  and  proceeds with
    respect to the repurchase or purchase of any of the Mortgage Loans, in  each
    case received during this period, and partial principal prepayments received
    on or after
 
                                         (FOOTNOTES CONTINUED ON FOLLOWING PAGE)
 
                                       30
<PAGE>
    Succeeding  monthly periods  follow the pattern  of (B)  through (F), except
that the period in (B) begins on the first of the month.
 
DISTRIBUTIONS TO MULTI-CLASS CERTIFICATEHOLDERS
 
    The following description of distributions to Multi-Class Certificateholders
is one  example of  how such  distributions may  be determined.  The  Prospectus
Supplement   for  a  Series  may  provide   for  a  different  manner  in  which
distributions to  Multi-Class Certificateholders  will  be determined  for  such
Series  so long as such Multi-Class Certificates  are rated upon issuance in one
of the four highest rating categories by at least one Rating Agency.
 
    Except as  otherwise  set forth  in  the applicable  Prospectus  Supplement,
distributions of interest and distributions in reduction of the Stated Amount of
Multi-Class  Certificates will  be made  from the  Pool Distribution  Amount (as
determined by the Servicer on the related Determination Date in the same  manner
as  described above with  respect to Series of  Percentage Certificates) on each
Distribution Date for such Series to the holders of each Class then entitled  to
receive such distributions until the aggregate amount of such distributions have
reduced  the  Stated  Amount  of  each  such  Class  of  Certificates  to  zero.
Distributions in reduction of Stated Amount will be allocated among the  Classes
of  such  Certificates  in the  manner  specified in  the  applicable Prospectus
Supplement. If so specified  in the related  Prospectus Supplement, such  Series
may include Classes designed to receive principal payments using a predetermined
schedule   such  as   planned  amortization  class   certificates  and  targeted
amortization class certificates and Classes that receive principal payments only
if other designated Classes receive  their scheduled payments. Unless  otherwise
specified   in  the  applicable  Prospectus  Supplement,  all  distributions  in
reduction of the Stated  Amount of a Class  of Multi-Class Certificates will  be
made pro rata among the Certificates of such Class.
 
    Unless otherwise specified in the Prospectus Supplement relating to a Series
of  Certificates, the aggregate amount that  will be distributed in reduction of
Stated Amount to holders of Multi-Class  Certificates of a Series then  entitled
thereto on any Distribution Date for such Series will equal, to the extent funds
are
 
- --------------------------------------------------------------------------------
(FOOTNOTES CONTINUED FROM PRECEDING PAGE)
    February  17, will be deposited  in the Certificate Account  but will not be
    distributed to  Certificateholders on  the  February 25  Distribution  Date.
    Instead,  such  amounts  will be  credited  to the  Certificate  Account for
    distribution to Certificateholders on the March 25 Distribution Date.
 
(E) As of the close of business on February 17, the Servicer will determine  the
    amounts of Periodic Advances and the amounts of principal and interest which
    will  be distributed to the Certificateholders, including scheduled payments
    due on or before February 1 which have been received on or before the  close
    of  business on February  16, partial principal  prepayments received by the
    Servicer in reduction of the unpaid  principal balance of any Mortgage  Loan
    prior  to  February  17  and  principal  prepayments  in  full,  liquidation
    proceeds, and proceeds with respect to the repurchase or purchase of any  of
    the  Mortgage Loans,  received during  the period  commencing January  2 and
    ending  on  January  31.   With  respect  to   each  Series  of   Percentage
    Certificates,  other than Shifting Interest  Certificates, the Servicer will
    calculate the Distributable Amount  and the Pro Rata  Share for each  Class,
    and  the amount otherwise distributable  to the Subordinated Class, together
    with amounts, if any, in the Subordination Reserve Fund, will be  available,
    to   the  extent  of  the  Subordinated   Amount,  to  increase  the  amount
    distributable to  the  Senior  Class  or Classes  up  to  the  Senior  Class
    Shortfall  in  respect  of such  Classes.  With  respect to  each  Series of
    Shifting Interest Certificates, the Servicer will calculate the Senior Class
    Distribution Amount for each Senior Class and will determine the  percentage
    interests  of each  Senior Class to  be used in  connection with calculating
    Senior Class Distribution Amounts with respect to the March 25  Distribution
    Date.  If applicable,  the Servicer  will calculate  the amounts  payable in
    respect of any other form of credit enhancement.
 
(F) Unless otherwise  so specified  in the  related Prospectus  Supplement,  the
    Servicer  or the Paying Agent  will make distributions to Certificateholders
    on the 25th day of each month, or if such 25th day is not a business day, on
    the next business day.
 
                                       31
<PAGE>
available, the sum of  (i) the Multi-Class  Certificate Distribution Amount  (as
defined  herein)  and  (ii)  if  and to  the  extent  specified  in  the related
Prospectus Supplement, the applicable percentage of the Spread specified in such
Prospectus Supplement.
 
    Unless otherwise  specified in  the  applicable Prospectus  Supplement,  the
"Multi-Class  Certificate Distribution  Amount" with  respect to  a Distribution
Date for a Series of Multi-Class Certificates will equal the amount, if any,  by
which  the Stated Amount  of the Multi-Class Certificates  of such Series (after
taking into account the amount of interest  to be added to the Stated Amount  of
any Class of Compound Interest Certificates on such Distribution Date and before
giving  effect  to  any distributions  in  reduction  of Stated  Amount  on such
Distribution Date) exceeds the  Pool Value (as defined  herein) of the  Mortgage
Loans  included in the Trust Estate for such  Series as of the end of the period
(a "Due Period") specified in the related Prospectus Supplement. For purposes of
determining the Multi-Class  Certificate Distribution Amount  with respect to  a
Distribution  Date for a  Series of Certificates  having one or  more Classes of
Multi-Class Certificates, the Pool Value of  the Mortgage Loans included in  the
Trust  Estate for  such Certificates  will be reduced  to take  into account all
distributions thereon received by the Trustee during the applicable Due Period.
 
    Unless otherwise specified in the applicable Prospectus Supplement, "Spread"
with respect to  a Distribution Date  for a Series  of Multi-Class  Certificates
will  be the excess of (a) the sum of (i) all payments of principal and interest
received on the related Mortgage Loans (net of the Fixed Retained Yield, if any,
and the applicable Servicing Fee with respect to such Mortgage Loans) in the Due
Period applicable to such Distribution  Date and, in the  case of the first  Due
Period,  any amount deposited  by the Seller  in the Certificate  Account on the
Closing Date, (ii) income  from reinvestment thereof, if  any, and (iii) to  the
extent  specified in  the applicable Prospectus  Supplement, the  amount of cash
withdrawn from any  reserve fund  or available under  any other  form of  credit
enhancement for such Series, over (b) the sum of (i) all interest distributed on
the  Multi-Class Certificates of such Series on such Distribution Date, (ii) the
Multi-Class Certificate Distribution Amount for such Series with respect to such
Distribution Date, (iii) if applicable to such Series, any Special Distributions
(as described  below) in  reduction  of the  Stated  Amount of  the  Multi-Class
Certificates  of such Series made since the preceding Distribution Date for such
Series (or since the Closing Date in the case of the first Distribution Date for
such Series),  including  any accrued  interest  distributed with  such  Special
Distributions,  (iv) all administrative and other expenses relating to the Trust
Estate payable during  the Due  Period preceding such  Distribution Date,  other
than such expenses which are payable by the Servicer, and any amount required to
be  deposited  into any  reserve fund  from funds  allocable to  the Multi-Class
Certificates in the Certificate Account. Reinvestment income on any reserve fund
will not be included in Spread except to the extent that reinvestment income  is
taken into account in calculating the initial amount required to be deposited in
such reserve fund, if any.
 
  VALUATION OF MORTGAGE LOANS
 
    If   specified  in  the  Prospectus  Supplement  relating  to  a  series  of
Multi-Class Certificates, for purposes of  establishing the principal amount  of
Mortgage  Loans that will  be included in  a Trust Estate  for such Series, each
Mortgage Loan to be included  in such Trust Estate  will be assigned an  initial
"Pool   Value."  Unless   otherwise  specified  in   the  applicable  Prospectus
Supplement, the Pool  Value of  each Mortgage  Loan in  the Trust  Estate for  a
Series  is the Stated  Amount of Multi-Class Certificates  of such Series which,
based upon  certain  assumptions  and  regardless of  any  prepayments  on  such
Mortgage  Loans, can  be supported  by the  scheduled payments  of principal and
interest on  such  Mortgage Loans  (net  of the  Fixed  Retained Yield  on  such
Mortgage  Loans,  if  any,  and the  applicable  Servicing  Fee),  together with
reinvestment earnings thereon, if any, at the Assumed Reinvestment Rate for  the
period  specified in the related Prospectus  Supplement and amounts available to
be withdrawn  (if applicable)  from any  reserve fund  for such  Series, all  as
specified in the applicable Prospectus Supplement. In calculating the Pool Value
of  a Mortgage Loan included  in the Trust Estate,  future distributions on such
Mortgage Loan will be  determined based on scheduled  payments on such  Mortgage
Loan.  Any similar  Mortgage Loans  may be  aggregated into  one or  more groups
(each, a "Pool Value Group"), each of  which will be assigned an aggregate  Pool
Value
 
                                       32
<PAGE>
calculated  as if all such Mortgage Loans  in the Pool Value Group constituted a
single mortgage loan having the highest  mortgage rate and the longest  maturity
of  any such  mortgage loan  for such Pool  Value Group.  There are  a number of
alternative means of determining the Pool Value of a Mortgage Loan or Pool Value
Group, including determinations  based on  the discounted present  value of  the
remaining   scheduled   payments   of  principal   and   interest   thereon  and
determinations based on  the relationship  between the  Mortgage Interest  Rates
borne  thereby and  the Interest  Rates of  the Multi-Class  Certificates of the
related Series.  The Prospectus  Supplement for  each Series  will describe  the
method or methods (and related assumptions) used to determine the Pool Values of
the  Mortgage Loans or the  Pool Value Groups for such  Series. In any event, on
each Distribution Date, after  making the distributions  in reduction of  Stated
Amount  on  such Distribution  Date, the  aggregate  of the  Pool Values  of all
Mortgage Loans and all the Pool Value Groups included in the Trust Estate for  a
Series  of Certificates will be at least equal to the aggregate Stated Amount of
the Multi-Class Certificates of such Series.
 
    The "Assumed Reinvestment  Rate" for  a Series  of Multi-Class  Certificates
will  be the  highest rate  permitted by  the Rating  Agency or  Rating Agencies
rating such Series of Multi-Class Certificates or  a rate insured by means of  a
surety  bond, guaranteed investment contract or similar arrangement satisfactory
to such Rating Agency or Rating Agencies. If the Assumed Reinvestment Rate is so
insured, the related  Prospectus Supplement  will set  forth the  terms of  such
arrangement.
 
  SPECIAL DISTRIBUTIONS
 
    To the extent specified in the Prospectus Supplement relating to a Series of
Multi-Class  Certificates which have other  than monthly Distribution Dates, any
such  Classes  having  Stated  Amounts  may  receive  special  distributions  in
reduction of Stated Amount, together with accrued interest on the amount of such
reduction  ("Special Distributions") in any month, other than a month in which a
Distribution Date  occurs, if,  as  a result  of  principal prepayments  on  the
Mortgage  Loans  in the  related Trust  Estate  and/or reinvestment  yields then
available, the  Trustee  determines,  based  on  assumptions  specified  in  the
applicable  Pooling and Servicing Agreement, that the amount of cash anticipated
to be available on the next Distribution Date for such Series to be  distributed
to  the holders of such Multi-Class Certificates may be less than the sum of (i)
the interest scheduled to be distributed to such holders and (ii) the amount  to
be distributed in reduction of Stated Amount of such Multi-Class Certificates on
such  Distribution Date. Any such Special Distributions will be made in the same
priority and manner as distributions in reduction of Stated Amount would be made
on the next Distribution Date.
 
    To the extent specified  in the related Prospectus  Supplement, one or  more
Classes  of Certificates of a Series  of Multi-Class Certificates may be subject
to special distributions in reduction of the Stated Amount thereof at the option
of the  holders of  such  Certificates, or  to  mandatory distributions  by  the
Servicer.  Any such distributions with respect to  a Series will be described in
the applicable Prospectus Supplement and will be on such terms and conditions as
described therein and specified in the Pooling and Servicing Agreement for  such
Series.
 
  LAST SCHEDULED DISTRIBUTION DATE
 
    The  "Last  Scheduled  Distribution  Date"  for  each  Class  of Multi-Class
Certificates of a Series  having a Stated Amount,  to the extent Last  Scheduled
Distribution Dates are specified in the applicable Prospectus Supplement, is the
latest  date on which  (based upon the  assumptions set forth  in the applicable
Prospectus Supplement) the Stated Amount of such Class is expected to be reduced
to zero. Since the rate of distributions  in reduction of Stated Amount of  each
such Class of Multi-Class Certificates will depend upon, among other things, the
rate  of payment (including prepayments) of  the principal of the Mortgage Loans
in the Trust Estate for such Series,  the actual last Distribution Date for  any
such   Class  could  occur   significantly  earlier  than   its  Last  Scheduled
Distribution Date.  To the  extent of  any delays  in receipt  of any  payments,
insurance  proceeds or liquidation  proceeds with respect  to the Mortgage Loans
included in any  Trust Estate,  the last Distribution  Date for  any such  Class
could  occur  later  than its  Last  Scheduled  Distribution Date.  The  rate of
payments  on  the  Mortgage  Loans  in  the  Trust  Estate  for  any  Series  of
Certificates will
 
                                       33
<PAGE>
depend upon their particular characteristics, as well as on the prevailing level
of interest rates from time to time and other economic factors, and no assurance
can  be given as to the actual  prepayment experience of the Mortgage Loans. See
"Prepayment and Yield Considerations" below.
 
                                 CREDIT SUPPORT
 
SUBORDINATION
 
  CERTIFICATES OTHER THAN SHIFTING INTEREST CERTIFICATES
 
    If so  specified  in the  Prospectus  Supplement  relating to  a  Series  of
Certificates,  other than a Series of Shifting Interest Certificates, the rights
of the holders of a Class of Subordinated Certificates to receive  distributions
will  be  subordinated  to  the rights  of  the  holders of  a  Class  of Senior
Certificates, to  the  extent  of  the Subordinated  Amount  specified  in  such
Prospectus  Supplement. The  Subordinated Amount  will be  reduced by  an amount
equal to  Aggregate Losses  and will  be further  reduced in  accordance with  a
schedule  described in the applicable Prospectus Supplement. Aggregate Losses as
defined in the applicable Pooling and  Servicing Agreement for any given  period
will  equal the aggregate amount of delinquencies, losses and other deficiencies
("Payment Deficiencies") in  the amounts  due to  the Senior  Certificateholders
paid or borne by the Subordinated Certificateholders (but excluding any payments
of  Senior Class  Shortfall Accruals  or interest  thereon) during  such period,
whether  such  aggregate  amount  results   by  way  of  withdrawals  from   the
Subordination  Reserve Fund (including, prior to  the time that the Subordinated
Amount is reduced to  zero, any such withdrawal  of amounts attributable to  the
Initial  Deposit, if any), reductions in  amounts that would otherwise have been
distributable to the Subordinated  Certificateholders on any Distribution  Date,
or  otherwise;  less  the  aggregate  amount  of  previous  Payment Deficiencies
recovered by  the related  Trust Estate  during such  period in  respect of  the
Mortgage  Loans giving  rise to  such previous  Payment Deficiencies, including,
without limitation, such  recoveries resulting  from the  receipt of  delinquent
principal  or  interest payments,  Liquidation  Proceeds and  insurance proceeds
(net, in  each case,  of any  applicable  Fixed Retained  Yield and  any  unpaid
Servicing  Fee to  which the Servicer  is entitled, foreclosure  costs and other
servicing costs, expenses and advances relating to such Mortgage Loans).
 
    The  protection   afforded  to   the   Senior  Certificateholders   by   the
subordination  feature described above will be effected both by the preferential
right, to the extent specified in the applicable Prospectus Supplement, of  such
Senior  Certificateholders  to  receive  current  distributions  on  the related
Mortgage Loans that would otherwise have been distributable to the  Subordinated
Certificateholders  and (unless otherwise specified in the applicable Prospectus
Supplement) by the establishment and maintenance of a Subordination Reserve Fund
for such  Series.  Unless  otherwise  specified  in  the  applicable  Prospectus
Supplement,  the Subordination  Reserve Fund  will not  be a  part of  the Trust
Estate. The Subordination Reserve Fund may  be funded initially with an  initial
deposit  by the  Seller (the "Initial  Deposit") in  an amount set  forth in the
applicable  Prospectus  Supplement.  Following  the  initial  issuance  of   the
Certificates of a Series and until the balance of the Subordination Reserve Fund
(without  taking into account the amount of the Initial Deposit) first equals or
exceeds the  Specified  Subordination Reserve  Fund  Balance set  forth  in  the
applicable   Prospectus  Supplement,  and  unless  otherwise  specified  in  the
applicable Prospectus Supplement,  the Servicer will  withhold all amounts  that
would  otherwise have been distributable  to the Subordinated Certificateholders
and deposit such amounts (less any  portions thereof required to be  distributed
to  Senior Certificateholders as  described below) in  the Subordination Reserve
Fund. The time necessary for the Subordination Reserve Fund of a Series to reach
the applicable  Specified Subordination  Reserve Fund  Balance for  such  Series
after  the initial issuance of  the Certificates, and the  period for which such
balance is  maintained, will  be affected  by the  delinquency, foreclosure  and
prepayment  experience of  the Mortgage  Loans in  the related  Trust Estate and
cannot be accurately  predicted. Unless  otherwise specified  in the  applicable
Prospectus  Supplement,  after  the  amount in  the  Subordination  Reserve Fund
(without taking into  account the amount  of the Initial  Deposit) for a  Series
first  equals  or exceeds  the applicable  Specified Subordination  Reserve Fund
Balance, the Servicer will withhold from the Subordinated Certificateholders and
will deposit in  the Subordination Reserve  Fund such portion  of the  principal
payments  on  the Mortgage  Loans  otherwise distributable  to  the Subordinated
Certificateholders as may be necessary to maintain the
 
                                       34
<PAGE>
Subordination Reserve  Fund  (without taking  into  account the  amount  of  the
Initial  Deposit)  at  the  Specified Subordination  Reserve  Fund  Balance. The
Prospectus Supplement for each Series will set forth the amount of the Specified
Subordination Reserve Fund Balance applicable from time to time and the  extent,
if  any,  to  which the  Specified  Subordination  Reserve Fund  Balance  may be
reduced.
 
    In no event  will the  Specified Subordination  Reserve Fund  Balance for  a
Series  ever be  required to  exceed the Subordinated  Amount. In  the event the
Subordination Reserve Fund is depleted before the Subordinated Amount is reduced
to zero,  the Senior  Certificateholders will  continue to  have a  preferential
right,  to  the extent  specified in  the  applicable Prospectus  Supplement, to
receive  current  distributions  of  amounts  that  would  otherwise  have  been
distributable  to the Subordinated Certificateholders to  the extent of the then
Subordinated Amount.
 
    After  the   Subordinated   Amount   is  reduced   to   zero,   the   Senior
Certificateholders   of  a  Series  will,  unless  otherwise  specified  in  the
applicable Prospectus  Supplement,  nonetheless  have a  preferential  right  to
receive  payment  of  Senior Class  Shortfall  Accruals and  interest  which has
accrued thereon from amounts that would otherwise have been distributable to the
Subordinated Certificateholders.  The Senior  Certificateholders will  otherwise
bear  their proportionate share  of any losses  realized on the  Trust Estate in
excess of the Subordinated Amount.
 
    Amounts held  from time  to time  in the  Subordination Reserve  Fund for  a
Series  will be held  for the benefit  of the Senior  Certificateholders of such
Series until withdrawn from the Subordination Reserve Fund as described below.
 
    If on  any Distribution  Date while  the Subordinated  Amount exceeds  zero,
there  is a Senior Class Shortfall,  the Senior Class Certificateholders will be
entitled to  receive from  current payments  on the  Mortgage Loans  that  would
otherwise  have been distributable to Subordinated Certificateholders the amount
of such Senior Class  Shortfall. If such current  payments are insufficient,  an
amount  equal  to  the  lesser of:  (i)  the  entire amount  on  deposit  in the
Subordination Reserve  Fund  available for  such  purpose; or  (ii)  the  amount
necessary  to  cover  the Senior  Class  Shortfall  will be  withdrawn  from the
Subordination Reserve Fund. Amounts representing investment earnings on  amounts
held in the Subordination Reserve Fund will not be available to make payments to
the  Senior Certificateholders.  If current payments  on the  Mortgage Loans and
amounts available in the Subordination Reserve Fund are insufficient to pay  the
entire  Senior Class Shortfall, then amounts held in the Certificate Account for
future  distributions  will   be  distributed   as  necessary   to  the   Senior
Certificateholders.
 
    Amounts  withdrawn  from the  Subordination Reserve  Fund  for a  Series and
deposited in  the Certificate  Account for  such Series  will be  charged  first
against amounts in the Subordination Reserve Fund other than the Initial Deposit
for such Series, and thereafter against such Initial Deposit.
 
    Any amounts in the Subordination Reserve Fund for a Series on a Distribution
Date  in excess of the Specified Subordination Reserve Fund Balance on such date
prior to the time the  Subordinated Amount for such  Series is reduced to  zero,
and any amounts remaining in the Subordination Reserve Fund for such Series upon
termination  of  the  trust  created by  the  applicable  Pooling  and Servicing
Agreement, will be paid, unless otherwise specified in the applicable Prospectus
Supplement, to the Subordinated Certificateholders of such Series in  accordance
with  their pro rata ownership thereof, or, in the case of a Series with respect
to which an election has  been made to treat the  Trust Estate (or a  segregated
pool of assets therein) as a REMIC, first to the Residual Certificateholders (to
the  extent of  any portion  of the Initial  Deposit, if  any, and undistributed
reinvestment earnings  attributable thereto),  and  second to  the  Subordinated
Certificateholders  of such  Series, in each  case in accordance  with their pro
rata  ownership  thereof.   Amounts  permitted  to   be  distributed  from   the
Subordination  Reserve Fund for a Series will no longer be subject to any claims
or rights of the Senior Certificateholders of such Series.
 
    Funds in the  Subordination Reserve Fund  for a Series  will be invested  as
provided  in the applicable Pooling and  Servicing Agreement in certain types of
eligible investments ("Eligible Investments"). If an
 
                                       35
<PAGE>
election has been made to treat the Trust Estate (or a segregated pool of assets
therein) as a REMIC, no more than 30% of the income or gain of the Subordination
Reserve Fund  in  any  taxable year  may  be  derived from  the  sale  or  other
disposition  of investments held for less than three months in the Subordination
Reserve Fund. The earnings on such investments will be withdrawn and paid to the
Subordinated Certificateholders of such Series or to the holders of the Residual
Certificates, in the event  that an election  has been made  to treat the  Trust
Estate (or a segregated pool of assets therein) with respect to such Series as a
REMIC,  in accordance with their  respective interests. Investment income earned
on amounts held  in the  Subordination Reserve Fund  will not  be available  for
distribution to the Senior Certificateholders or otherwise subject to any claims
or rights of the Senior Certificateholders.
 
    Eligible  Investments for monies deposited in the Subordination Reserve Fund
will be specified in the applicable Pooling and Servicing Agreement and,  unless
otherwise provided in the applicable Prospectus Supplement, will mature no later
than the next Distribution Date.
 
    Holders  of Subordinated  Certificates of a  Series will not  be required to
refund any amounts which have been  properly distributed to them, regardless  of
whether  there are sufficient  funds to distribute  to Senior Certificateholders
the amounts to which they are later entitled.
 
    If  specified  in  the  Prospectus  Supplement  relating  to  a  Series   of
Certificates,  the Subordination Reserve Fund may  be funded in any other manner
acceptable to the  Rating Agency  and consistent with  an election,  if any,  to
treat  the Trust Estate (or a segregated pool of assets therein) for such Series
as a REMIC, as will be more fully described in such Prospectus Supplement.
 
  SHIFTING INTEREST CERTIFICATES
 
    If specified  in the  applicable Prospectus  Supplement, the  rights of  the
holders  of  the  Subordinated Certificates  of  a Series  of  Shifting Interest
Certificates to receive distributions with respect to the Mortgage Loans in  the
related  Trust Estate will be subordinated to  such rights of the holders of the
Senior Certificates of the same Series to the extent described below, except  as
otherwise  set  forth  in  such  Prospectus  Supplement.  This  subordination is
intended to  enhance the  likelihood of  regular receipt  by holders  of  Senior
Certificates  of the full amount of  scheduled monthly payments of principal and
interest due them and to provide limited protection to the holders of the Senior
Certificates against losses due to mortgagor defaults.
 
    The protection afforded to the holders of Senior Certificates of a Series of
Shifting Interest Certificates by the subordination feature described above will
be effected by the preferential right of  such holders to receive, prior to  any
distribution  being made in respect of  the related Subordinated Certificates on
each Distribution Date, current distributions  on the related Mortgage Loans  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 below,  by the right of  such holders to receive future
distributions on the Mortgage  Loans that would otherwise  have been payable  to
the holders of Subordinated Certificates.
 
    Losses  realized on liquidated Mortgage Loans (other than certain liquidated
Mortgage Loans that are Special Hazard  Mortgage Loans as described below)  will
be  allocated to the holders of Subordinated Certificates through a reduction of
the amount of principal payments on the Mortgage Loans to which such holders are
entitled. Prior to the Cross-Over Date,  holders of Senior Certificates of  each
Class  entitled to  a percentage of  principal payments on  the related Mortgage
Loans will be  entitled to  receive, as part  of their  respective Senior  Class
Distribution  Amounts  payable  on each  Distribution  Date in  respect  of each
Mortgage Loan that  became a  liquidated Mortgage  Loan in  the preceding  month
(subject  to the additional limitation  described below applicable to liquidated
Mortgage Loans that are Special Hazard Mortgage Loans), their respective  shares
of  the  Scheduled  Principal Balance  of  each such  liquidated  Mortgage Loan,
together with interest  accrued at  the applicable Net  Mortgage Interest  Rate,
irrespective of whether net Liquidation Proceeds realized thereon are sufficient
to  cover such amount. For  a description of the  full Senior Class Distribution
Amount  payable  to  holders  of   Senior  Certificates  of  each  Series,   see
"Description of the Certificates--Distributions to Percentage
Certificateholders--Shifting Interest Certificates."
 
                                       36
<PAGE>
    On each Distribution Date occurring on or after the Cross-Over Date, holders
of  Senior  Certificates of  each Class  entitled to  a percentage  of principal
payments will  generally  receive, as  part  of their  respective  Senior  Class
Distribution  Amounts,  only  their  respective shares  of  the  net Liquidation
Proceeds actually  realized in  respect of  the applicable  liquidated  Mortgage
Loans  after  reimbursement  to  the  Servicer  of  any  previously unreimbursed
Periodic Advances  made  in  respect  of such  liquidated  Mortgage  Loans.  See
"Description of the Certificates--Distributions to Percentage
Certificateholders--Shifting Interest Certificates."
 
    In  the event that a  Mortgage Loan becomes a  liquidated Mortgage Loan as a
result of a hazard not insured against under a standard hazard insurance  policy
of  the type described herein (a "Special Hazard Mortgage Loan"), the holders of
Senior Certificates of each Class entitled to a percentage of principal payments
on the related Mortgage  Loans will be  entitled to receive  in respect of  each
Mortgage  Loan  which became  a Special  Hazard Mortgage  Loan in  the preceding
month, as part of their respective Senior Class Distribution Amounts payable  on
each  Distribution  Date prior  to the  Special  Hazard Termination  Date, their
respective shares  of the  Scheduled Principal  Balance of  such Mortgage  Loan,
together  with interest  accrued at the  applicable Net  Mortgage Interest Rate,
rather than  their  respective  shares  of  net  Liquidation  Proceeds  actually
realized.  The Special Hazard Termination Date for a Series of Certificates will
be the  earlier to  occur of  (i) the  date on  which cumulative  net losses  in
respect  of Special Hazard Mortgage Loans  exceed the Special Hazard Loss Amount
specified in the applicable Prospectus  Supplement or (ii) the Cross-Over  Date.
Since  the amount of the Special Hazard Loss Amount for a Series of Certificates
is expected to be  less than the  amount of principal  payments on the  Mortgage
Loans  to which the holders of the  Subordinated Certificates of such Series are
initially entitled (such amount being subject to reduction, as described  above,
as  a result of allocation of losses  on other liquidated Mortgage Loans as well
as Special Hazard Mortgage Loans),  the holders of Subordinated Certificates  of
such  Series will bear the risk of losses in the case of Special Hazard Mortgage
Loans to a lesser extent than they will bear losses on other liquidated Mortgage
Loans. Once the Special Hazard Termination Date has occurred, holders of  Senior
Certificates of each Class entitled to payments of principal will be entitled to
receive,  as part  of their respective  Senior Class  Distribution Amounts, only
their respective shares of net  Liquidation Proceeds realized on Special  Hazard
Mortgage  Loans (less the total amount  of delinquent installments in respect of
each such  Special Hazard  Mortgage Loan  that were  previously the  subject  of
distributions  to  the  holders  of  Senior  Certificates  paid  out  of amounts
otherwise distributable to the holders of the Subordinated Certificates of  such
Series).  The outstanding principal balance of each such Class will, however, be
reduced by such Class's specified percentage of the Scheduled Principal  Balance
of   each  such   Special  Hazard  Mortgage   Loan.  See   "Description  of  the
Certificates--Distributions to Percentage Certificateholders--Shifting  Interest
Certificates."
 
    If  the cumulative net losses  on all Mortgage Loans  in a Trust Estate that
have become Special Hazard Mortgage  Loans in the months  prior to the month  in
which a Distribution Date occurs would exceed the Special Hazard Loss Amount for
a  Series of Certificates, that portion  of the Senior Class Distribution Amount
as of  such Distribution  Date for  each Class  of Senior  Certificates of  such
Series  entitled to a percentage of principal  payments on the Mortgage Loans in
the related Trust  Estate attributable  to Mortgage Loans  which became  Special
Hazard Mortgage Loans in the month preceding the month of such Distribution Date
will  be calculated not on the basis of the Scheduled Principal Balances of such
Special Hazard Mortgage Loans but rather will be computed as an amount equal  to
the  sum of (i) the excess of the Special Hazard Loss Amount over the cumulative
net losses on all  Mortgage Loans that became  Special Hazard Mortgage Loans  in
the  months prior to the month of such  Distribution Date and (ii) the excess of
(a) the product of the percentage of  principal payments to which such Class  is
entitled  multiplied by the  aggregate net Liquidation  Proceeds of the Mortgage
Loans which became  Special Hazard  Mortgage Loans  in the  month preceding  the
month  of  such  Distribution  Date  over (b)  the  total  amount  of delinquent
installments in  respect  of  such  Special  Hazard  Mortgage  Loans  that  were
previously  the  subject of  distributions  to such  Class  paid out  of amounts
otherwise distributable to the holders of the related Subordinated Certificates.
 
                                       37
<PAGE>
    Although  the subordination feature  described above is  intended to enhance
the likelihood of  timely payment of  principal and interest  to the holders  of
Senior  Certificates,  shortfalls  could result  in  certain  circumstances. For
example, a shortfall in  the payment of principal  otherwise due the holders  of
Senior  Certificates could occur if  losses realized on the  Mortgage Loans in a
Trust Estate  were exceptionally  high  and were  concentrated in  a  particular
month.   See  "Description  of  the  Certificates--Distributions  to  Percentage
Certificateholders--Shifting Interest  Certificates" for  a description  of  the
consequences of any shortfall of principal or interest.
 
    The  holders of Subordinated Certificates will not be required to refund any
amounts previously properly distributed to them, regardless of whether there are
sufficient funds on a subsequent Distribution  Date to make a full  distribution
to holders of each Class of Senior Certificates of the same Series.
 
OTHER CREDIT ENHANCEMENT
 
    In  addition to subordination as discussed  above, credit enhancement may be
provided with respect to  any Series of Certificates  in any other manner  which
may  be described  in the applicable  Prospectus Supplement,  including, but not
limited to,  credit enhancement  through an  alternative form  of  subordination
and/or one or more of the methods described below.
 
  LIMITED GUARANTEE
 
    If  so specified in  the Prospectus Supplement  with respect to  a Series of
Certificates, credit  enhancement may  be  provided in  the  form of  a  limited
guarantee issued by a guarantor named therein.
 
  LETTER OF CREDIT
 
    Alternative  credit support with respect to  a Series of Certificates may be
provided by  the  issuance of  a  letter of  credit  by the  bank  or  financial
institution  specified in  the applicable  Prospectus Supplement.  The coverage,
amount and frequency of any reduction in coverage provided by a letter of credit
issued with  respect to  a  Series of  Certificates will  be  set forth  in  the
Prospectus Supplement relating to such Series.
 
  POOL INSURANCE POLICIES
 
    If  so  specified  in the  Prospectus  Supplement  relating to  a  Series of
Certificates, the Seller will  obtain a pool insurance  policy for the  Mortgage
Loans in the related Trust Estate. The pool insurance policy will cover any loss
(subject  to the  limitations described in  a related  Prospectus Supplement) by
reason of default to the  extent a related Mortgage Loan  is not covered by  any
primary  mortgage insurance policy.  The amount and principal  terms of any such
coverage will be set forth in the Prospectus Supplement.
 
  SPECIAL HAZARD INSURANCE POLICIES
 
    If so specified in the applicable Prospectus Supplement, for each Series  of
Certificates  as to which a  pool insurance policy is  provided, the Seller will
also obtain a special  hazard insurance policy for  the related Trust Estate  in
the amount set forth in such Prospectus Supplement. The special hazard insurance
policy  will, subject to the limitations  described in the applicable Prospectus
Supplement, protect against  loss by  reason of damage  to Mortgaged  Properties
caused  by certain hazards not insured against under the standard form of hazard
insurance policy for the respective states in which the Mortgaged Properties are
located. The amount and principal terms of  any such coverage will be set  forth
in the Prospectus Supplement.
 
  MORTGAGOR BANKRUPTCY BOND
 
    If  so specified in  the applicable Prospectus  Supplement, losses resulting
from a  bankruptcy proceeding  relating to  a mortgagor  affecting the  Mortgage
Loans in a Trust Estate with respect to a Series of Certificates will be covered
under  a mortgagor bankruptcy bond (or any other instrument that will not result
in a downgrading of  the rating of  the Certificates of a  Series by the  Rating
Agency or Rating Agencies that rated such Series). Any mortgagor bankruptcy bond
or    such    other   instrument    will    provide   for    coverage    in   an
 
                                       38
<PAGE>
amount meeting the criteria of the  Rating Agency or Rating Agencies rating  the
Certificates  of  the related  Series, which  amount  will be  set forth  in the
related Prospectus  Supplement.  The amount  and  principal terms  of  any  such
coverage will be set forth in the Prospectus Supplement.
 
                      PREPAYMENT AND YIELD CONSIDERATIONS
 
PASS-THROUGH RATES AND INTEREST RATES
 
    Any  Class of Certificates of a Series may have a fixed Pass-Through Rate or
Interest Rate, or  a Pass-Through Rate  or Interest Rate  which varies based  on
changes  in an index or based on changes with respect to the underlying Mortgage
Loans (such as, for  example, varying on  the basis of  changes in the  weighted
average Net Mortgage Interest Rate of the underlying Mortgage Loans).
 
    The  Prospectus Supplement  for each Series  will specify the  range and the
weighted average of the Mortgage Interest Rates and, if applicable, Net Mortgage
Interest Rates for the Mortgage Loans  underlying such Series as of the  Cut-Off
Date.  If the Trust  Estate includes adjustable-rate  Mortgage Loans or includes
Mortgage Loans with different Net Mortgage Interest Rates, the weighted  average
Net  Mortgage Interest Rate may  vary from time to time  as set forth below. See
"The Trust Estates." The  Prospectus Supplement for a  Series will also  specify
the  initial weighted average Pass-Through Rate  or Interest Rate for each Class
of Certificates of such Series and  will specify whether each such  Pass-Through
Rate or Interest Rate is fixed or is variable.
 
    The  Net Mortgage Interest  Rate for any adjustable  rate Mortgage Loan will
change with  any  changes in  the  index  specified in  the  related  Prospectus
Supplement  on which such Mortgage Interest  Rate adjustments are based, subject
to any applicable periodic or aggregate  caps or floors on the related  Mortgage
Interest  Rate. The weighted average Net  Mortgage Interest Rate with respect to
any Series  may vary  due  to changes  in the  Net  Mortgage Interest  Rates  of
adjustable  rate Mortgage  Loans, to  the timing  of the  Mortgage Interest Rate
readjustments of  such Mortgage  Loans  and to  different  rates of  payment  of
principal  of fixed or adjustable rate Mortgage Loans bearing different Mortgage
Interest Rates. See "Prepayment and Yield Considerations."
 
SCHEDULED DELAYS IN DISTRIBUTIONS
 
    At the date of initial issuance  of the Certificates of each Series  offered
hereby,  the initial purchasers  of a Class of  Certificates (other than certain
Classes of Residual Certificates)  will be required to  pay accrued interest  at
the  applicable  Pass-Through Rate  or  Interest Rate  for  such Class  from the
Cut-Off Date for such Series to, but  not including, the date of issuance.  With
respect  to Standard Certificates or  Stripped Certificates, the effective yield
to Certificateholders  will  be  below  the  yield  otherwise  produced  by  the
applicable  Pass-Through Rate because the distribution of principal and interest
which is due on each Due  Date will not be made until  the 25th day (or if  such
25th day is not a business day, the business day immediately following such 25th
day)  of  the  month  in  which  such  Due  Date  occurs  (or  until  such other
Distribution Date specified  in the  applicable Prospectus  Supplement). To  the
extent  set forth in the related Prospectus Supplement, Multi-Class Certificates
may provide for distributions of interest accrued during periods ending prior to
the related Distribution Date. In any  such event, the nature of such  scheduled
delays  in  distribution  and  the  impact  on  the  yield  of  such Multi-Class
Certificates will be set forth in the related Prospectus Supplement.
 
EFFECT OF PRINCIPAL PREPAYMENTS
 
    When a Mortgage Loan is prepaid in full, the mortgagor pays interest on  the
amount  prepaid only to  the date of prepayment  and not thereafter. Liquidation
Proceeds (as defined  herein) and  amounts received in  settlement of  insurance
claims  are  also likely  to include  interest only  to the  time of  payment or
settlement. When a Mortgage Loan is  prepaid in part, an interest shortfall  may
result  depending on the timing of the receipt of the partial prepayment and the
timing of when those  prepayments are passed  through to Certificateholders.  To
partially  mitigate this reduction in yield, the Pooling and Servicing Agreement
relating to a Series will provide, unless otherwise specified in the  applicable
Prospectus Supplement, that with
 
                                       39
<PAGE>
respect  to any principal prepayment in full of any Mortgage Loan underlying the
Certificates of such Series, the Servicer will pay into the Certificate  Account
for  such Series  to the extent  funds are  available for such  purpose from the
aggregate Servicing  Fees  (or  portion  thereof as  specified  in  the  related
Prospectus  Supplement) which  the Servicer is  entitled to  receive relating to
mortgagor payments or other recoveries distributed to Certificateholders on  the
related  Distribution Date, the amount, if any,  of interest at the Net Mortgage
Interest Rate  for such  Mortgage Loan  for the  period from  the date  of  such
prepayment  in  full  to  and including  the  end  of the  month  in  which such
prepayment  in  full  occurs.  Unless  otherwise  specified  in  the  applicable
Prospectus  Supplement, no comparable  offset against the  Servicing Fee will be
provided with respect  to partial  prepayments or liquidations  of any  Mortgage
Loans  and  any  interest shortfall  arising  from partial  prepayments  or from
liquidations either will be covered by means of the subordination of the  rights
of Subordinated Certificateholders or any other credit support arrangements. See
"Servicing of the Mortgage Loans--Adjustment to Servicing Fee in Connection with
Prepaid Mortgage Loans."
 
    A  lower  rate of  principal prepayments  than anticipated  would negatively
affect the total return to  investors in any Certificates  of a Series that  are
offered  at a discount to their principal  amount and a higher rate of principal
prepayments than  anticipated  would  negatively  affect  the  total  return  to
investors in the Certificates of a Series that are offered at a premium to their
principal  amount.  The  yield  on  Stripped  Certificates  may  be particularly
sensitive to prepayment rates, and further information with respect to yield  on
such  Stripped  Certificates  will  be  included  in  the  applicable Prospectus
Supplement.
 
WEIGHTED AVERAGE LIFE OF CERTIFICATES
 
    The Mortgage Loans may  be prepaid in  full or in part  at any time.  Unless
otherwise  specified in the  applicable Prospectus Supplement,  no Mortgage Loan
will provide  for  a  prepayment  penalty. Unless  otherwise  specified  in  the
applicable  Prospectus Supplement,  all fixed  rate Mortgage  Loans will contain
due-on-sale clauses permitting the mortgagee to accelerate the maturities of the
Mortgage Loans  upon conveyance  of the  related Mortgaged  Properties, and  all
adjustable-rate  Mortgage Loans will permit creditworthy borrowers to assume the
then-outstanding indebtedness on the Mortgage Loans.
 
    Prepayments on Mortgage Loans are commonly measured relative to a prepayment
standard or  model.  The  Prospectus  Supplement for  each  Series  of  Stripped
Certificates  may, and the Prospectus Supplement  for each Series of Multi-Class
Certificates will, describe one or more such prepayment standards or models  and
contain  tables setting forth the projected yields  to maturity on each Class or
Subclass of Certificates of a Series  of Stripped Certificates or, with  respect
to a Series of Multi-Class Certificates, the weighted average life of each Class
and  the percentage of the  original aggregate Stated Amount  of each Class that
would be outstanding on  specified Distribution Dates for  such Series based  on
the assumptions stated in such Prospectus Supplement, including assumptions that
prepayments  on the  Mortgage Loans are  made at rates  corresponding to various
percentages of  the  prepayment  standard  or model  specified  in  the  related
Prospectus Supplement.
 
    There  is no  assurance that prepayment  of the Mortgage  Loans underlying a
Series of Certificates will conform to  any level of the prepayment standard  or
model  specified  in the  related Prospectus  Supplement.  A number  of factors,
including  homeowner  mobility,  economic  conditions,  changes  in  mortgagors'
housing  needs, job transfers, unemployment or, in the case of borrowers relying
on commission income  and self-employed borrowers,  significant fluctuations  in
income  or adverse economic conditions, mortgagors' net equity in the properties
securing the  mortgages,  servicing  decisions,  enforceability  of  due-on-sale
clauses,  mortgage  market interest  rates,  mortgage recording  taxes,  and the
availability of mortgage  funds, may affect  prepayment experience. In  general,
however,  if  prevailing interest  rates fall  significantly below  the Mortgage
Interest Rates on the  Mortgage Loans underlying a  Series of Certificates,  the
prepayment  rates  of  such Mortgage  Loans  are  likely to  be  higher  than if
prevailing rates remain at or above the  rates borne by such Mortgage Loans.  It
should  be noted  that Certificates of  a Series  may evidence an  interest in a
Trust Estate with different Mortgage Interest Rates. Accordingly, the prepayment
experience of such Certificates will to some extent be a function of the mix  of
interest   rates   of   the  Mortgage   Loans.   In  addition,   the   terms  of
 
                                       40
<PAGE>
the Pooling and  Servicing Agreement will  require the Servicer  to enforce  any
due-on-sale  clause to  the extent  it has  knowledge of  the conveyance  or the
proposed conveyance  of the  underlying Mortgaged  Property; provided,  however,
that  any enforcement action that  the Servicer in good  faith determines may be
restricted by law or that would impair or threaten to impair any recovery  under
any  related insurance policy  will not be required  and provided, further, that
the Servicer  may  permit  the  assumption  of  defaulted  Mortgage  Loans.  See
"Servicing   of   the  Mortgage   Loans--Enforcement  of   Due-on-Sale  Clauses;
Realization Upon Defaulted  Mortgage Loans"  and "Certain Legal  Aspects of  the
Mortgage  Loans--'Due-On-Sale' Clauses" for a  description of certain provisions
of each Pooling and Servicing Agreement and certain legal developments that  may
affect the prepayment experience on the Mortgage Loans.
 
    At the request of the mortgagor, the Servicer may allow the refinancing of a
Mortgage  Loan  in  any  Trust  Estate  by  accepting  prepayments  thereon  and
permitting a new  loan secured by  a Mortgage  on the same  property. Upon  such
refinancing,  the new loan will not be included in the Trust Estate. A mortgagor
may be legally entitled to require the Servicer to allow such a refinancing. Any
such refinancing  will have  the same  effect as  a prepayment  in full  of  the
related  Mortgage Loan. In  this regard PHMC  may, from time  to time, implement
programs designed  to  encourage refinancing  through  PHMC, including  but  not
limited  to general or  targeted solicitations, or  the offering of pre-approved
applications, reduced  origination fees  or closing  costs, or  other  financial
incentives.  The Servicer may  also encourage refinancing  of defaulted Mortgage
Loans, including  Mortgage Loans  that would  permit creditworthy  borrowers  to
assume the outstanding indebtedness.
 
    The  Seller will  be obligated,  under certain  circumstances, to repurchase
certain of  the Mortgage  Loans. In  addition, if  specified in  the  applicable
Prospectus  Supplement, the Pooling and Servicing Agreement will permit, but not
require, the Seller, and the terms of certain insurance policies relating to the
Mortgage Loans may  permit the  applicable insurer, to  purchase any  delinquent
Mortgage Loan. The proceeds of any such purchase or repurchase will be deposited
in the related Certificate Account and such purchase or repurchase will have the
same effect as a prepayment in full of the related Mortgage Loan. See "The Trust
Estates--Mortgage  Loans--Assignment  of  the  Mortgage  Loans  to  the Trustee"
and"--Optional Repurchases."  In addition,  if so  specified in  the  applicable
Prospectus  Supplement, the Servicer  will have the option  to purchase all, but
not less than all, of the Mortgage  Loans in any Trust Estate under the  limited
conditions   specified  in  such  Prospectus   Supplement.  For  any  Series  of
Certificates for which an election has been made to treat the Trust Estate (or a
segregated pool of assets therein) as  a REMIC, any such purchase or  repurchase
may  be effected only pursuant to a  "qualified liquidation," as defined in Code
Section 860F(a)(4)(A). See  "The Pooling  and Servicing  Agreement--Termination;
Purchase of Mortgage Loans."
 
                                   THE SELLER
 
    The  Prudential  Home Mortgage  Securities Company,  Inc. (the  "Seller"), a
direct, wholly-owned subsidiary  of The Prudential  Home Mortgage Company,  Inc.
("PHMC")  and  an  indirect,  wholly-owned  subsidiary  of  Residential Services
Corporation of America and The Prudential Insurance Company of America, a mutual
insurance  company  organized  under  the  laws  of  the  State  of  New  Jersey
("Prudential  Insurance"), is the  successor in interest  to The Prudential Home
Mortgage Securities  Company,  a  limited  purpose  general  partnership  formed
pursuant  to the Partnership Law  of the State of New  York on December 30, 1987
("PHMSCo."). The Seller was incorporated in the State of Delaware on August  21,
1985  under the name Dryden Guaranty Corporation, but did not actively engage in
business prior  to December  28, 1988.  On  July 18,  1988, the  Certificate  of
Incorporation  of the Seller was amended to, among other things, change the name
of Dryden  Guaranty  Corporation  to The  Prudential  Home  Mortgage  Securities
Company,  Inc. and  to limit the  purposes for  which the Seller  exists and, on
December 28, 1988, the Seller acquired all of the assets and assumed all of  the
liabilities of PHMSCo., including but not limited to all of PHMSCo.'s rights and
obligations  under the  Pooling and Servicing  Agreements relating  to series of
mortgage pass-through certificates previously sold by it.
 
                                       41
<PAGE>
    The limited purposes of the Seller are, in general, to acquire, own and sell
mortgage loans;  to issue,  acquire, own,  hold and  sell mortgage  pass-through
securities  which represent  ownership interests in  mortgage loans, collections
thereon and related properties; and to  engage in any acts which are  incidental
to, or necessary, suitable or convenient to accomplish, the foregoing.
 
    The  Seller  maintains  its principal  office  at 7470  New  Technology Way,
Frederick, Maryland 21701. Its telephone number is (301) 846-8199.
 
    At the time of  the formation of  any Trust Estate, the  Seller will be  the
sole  owner of all the related Mortgage Loans. The Seller will have acquired the
Mortgage Loans included in any Trust Estate from PHMC or another affiliate.  The
Seller's  only obligation with respect to the Certificates of any Series will be
to repurchase or substitute for Mortgage Loans in a Trust Estate in the event of
defective documentation  or  upon the  failure  of certain  representations  and
warranties  made by the Seller. See  "The Trust Estates-- Assignment of Mortgage
Loans to the Trustee."
 
                                      PHMC
 
GENERAL
 
    PHMC is the successor in interest to The Prudential Home Mortgage Company, a
joint venture  which was  formed under  the laws  of the  State of  New York  on
November 7, 1984 ("PHMCo."). Immediately prior to November 1987, the partners of
PHMCo.,  each  of which  owned a  50% interest  in the  joint venture,  were The
Prudential Mortgage  Capital Company,  Inc.,  a New  Jersey corporation  and  an
indirect,  wholly  owned  subsidiary  of Prudential  Insurance  ("PMCC")  and TR
Venture Corporation ("TRVC"), a Delaware corporation indirectly, wholly owned by
Salomon Inc and affiliated with Salomon Brothers Inc. During November 1987, PMCC
transferred a 0.1% interest in PHMCo. to its affiliate, PIC Realty  Corporation,
and,  immediately thereafter, the interest  of TRVC in PHMCo.  was retired. As a
consequence thereof,  PHMCo.  became  indirectly,  wholly  owned  by  Prudential
Insurance, which, in turn, also indirectly, wholly owns the Seller.
 
    PHMC was incorporated in the State of New Jersey on September 18, 1978 under
the  name Newark Rehabilitation,  Inc., but did not  actively engage in business
prior to October 31, 1988. On March 3, 1988, Newark Rehabilitation, Inc. changed
its name to  The Prudential  Home Mortgage Company,  Inc., and,  on October  31,
1988,  PHMC acquired  all of the  assets and  assumed all of  the liabilities of
PHMCo. As used herein and in each Prospectus Supplement, references to PHMC that
relate to activities  occurring prior  to October 31,  1988 are  to PHMCo.  From
October  31,  1988  to  December  19, 1989,  PHMC  was  a  direct,  wholly owned
subsidiary of PMCC. On December  19, 1989, all of the  common stock of PHMC  was
transferred   to,  and  PHMC  became  a  direct,  wholly  owned  subsidiary  of,
Residential Services Corporation of America,  a direct, wholly owned  subsidiary
of Prudential Insurance.
 
    PHMC  is engaged principally in the  business of originating and purchasing,
for its own account and for the account of its affiliates, residential  mortgage
loans  secured by one- to four-family homes located throughout the United States
and made in order to purchase those homes or to refinance prior loans secured by
such homes. PHMC  also processes  loans for other  originators. See  "--Mortgage
Origination Processing" below. The executive offices of PHMC are located at 8000
Maryland  Avenue, Suite 1400, Clayton, Missouri  63105, and its telephone number
is (314) 726-3900.
 
    PHMC is  an affiliate  of  Lender's Service,  Inc., a  Delaware  corporation
("LSI"),  formerly known as Lender's Service Acquisition Corporation, which is a
wholly owned subsidiary of  Residential Services Corporation  of America and  an
indirect  wholly  owned subsidiary  of Prudential  Insurance,  and which  is the
successor in interest to Lender's Service, Inc., a Pennsylvania corporation. LSI
maintains  a  relationship  with  a  nationwide  network  of  appraisers;  these
appraisers  perform work for LSI on an independent-contractor basis. Appraisals,
review appraisals  and recertifications  obtained  in connection  with  mortgage
loans  originated  or  acquired  by  PHMC  may  be  obtained  through  LSI.  See
"--Mortgage Loan Underwriting"  below. LSI  may also  act as  a title  insurance
agent  for  various  title  insurance  companies,  and  as  a  vendor  of credit
 
                                       42
<PAGE>
reports for UCB Services, a national mortgage reporting company, with respect to
mortgage loans,  including the  Mortgage Loans.  PHMC is  also an  affiliate  of
Prudential  Property and  Casualty Insurance  Company, a  wholly owned, indirect
subsidiary  of  Prudential  Insurance,  which  offers  casualty  insurance   for
residential  properties, which may include the  Mortgaged Properties. PHMC is an
affiliate of The Prudential  Bank and Trust Company,  a Georgia bank, for  which
PHMC  processes  applications  for  home  equity  loans  secured  by residential
properties, which  may  include  the  Mortgaged  Properties.  PHMC  is  also  an
affiliate of The Prudential Real Estate Affiliates, Inc., which may, directly or
through  real estate brokers, refer  loan originations to PHMC.  PHMC is also an
affiliate of The Prudential Savings Bank, a savings and loan association,  which
may  offer services  to the mortgagors  of the  Mortgage Loans. PHMC  is also an
affiliate  of  Prudential  Residential  Services  Limited  Partnership  and  The
Prudential  Real Estate  Affiliates, Inc.  (collectively, "PRR").  PRR primarily
offers relocation  services to  corporate  employees and  residential  brokerage
services  to the public. PRR may, directly or through real estate brokers, refer
loan originations  to PHMC.  PHMC is  also an  affiliate of  a number  of  other
insurance providers (including providers of life, health, disability, automobile
and  personal catastrophe insurance) and financial services providers (including
providers of annuities,  mutual funds, retirement  accounts, financial  planning
services,   credit  cards,  securities  and   commodities  brokerage  and  asset
management), all of which may offer  services to the mortgagors of the  Mortgage
Loans.
 
    PHMC  conducts its  mortgage loan processing  through centralized production
offices located in Costa Mesa, California, Frederick, Maryland and  Minneapolis,
Minnesota.  At  these locations,  PHMC receives  applications for  home mortgage
loans on toll-free  telephone numbers that  can be called  from anywhere in  the
United   States.  In  addition,  PHMC   maintains  marketing  offices  in  major
metropolitan centers in the United States. While the manner in which it conducts
its business does not generally entail face-to-face interactions with borrowers,
PHMC has varying  degrees of direct  contact with borrowers  under the  mortgage
origination  and acquisition programs  described below. Since  PHMC takes a more
active role in loan  processing in connection with  those programs that  involve
the referral of applicants, rather than the purchase of completed loan packages,
borrower  contact  tends  to  be  more  frequent  where  PHMC  functions  as the
originator of the mortgage loans.
 
    On May 31, 1991, PHMC acquired  certain assets and operations of A  Mortgage
Company,  formerly America's  Mortgage Company ("AMC"),  located in Springfield,
Illinois. AMC's business consisted primarily of the origination and  acquisition
of  mortgage loans insured  or guaranteed by  the Federal Housing Administration
and the  United States  Department  of Veterans  Affairs ("FHA/VA  loans"),  the
issuance  and sale of securities guaranteed  by the Government National Mortgage
Association ("GNMA"), which securities were backed by pools of FHA/VA loans, and
the servicing of such mortgage loans.  These activities are now being  conducted
by  PHMC  from the  Springfield, Illinois  location.  The description  of PHMC's
activities elsewhere in this  Prospectus relate to  conventional rather than  to
FHA/VA  loans, since the Mortgage  Loans to be included  in the Trust Estate for
any Series of Certificates will be comprised exclusively of conventional loans.
 
MORTGAGE LOAN PRODUCTION SOURCES
 
    Unless otherwise specified in  the applicable Prospectus Supplement,  PHMC's
primary  sources  of mortgage  loans are  (i)  selected corporate  clients, (ii)
mortgage brokers and similar  entities, and (iii)  other originators. The  first
two  categories involve  the origination of  mortgage loans by  PHMC through the
referral of applicants  to PHMC by  the respective sources;  the third  category
involves  the acquisition by PHMC of qualifying mortgage loans presented to PHMC
by such third  parties. The relative  contribution of each  of these sources  to
PHMC's  business, measured by the volume  of loans generated, tends to fluctuate
over time.
 
    Mortgage loans generated  through contacts  with corporate  clients or  with
mortgage  brokers and similar entities typically  involve the referral of a loan
applicant to PHMC; the gathering of credit-related and
 
                                       43
<PAGE>
property-specific information by PHMC;  and the decision by  PHMC, based on  its
analysis  of such information, as to the  suitability of its making the loan. It
is characteristic of PHMC's practice with respect to loans generated as a result
of referrals from these two sources  that PHMC, itself, orders appraisals  (most
frequently,  the original appraisals, but in  some cases, review appraisals) and
credit reports.  The  level of  involvement  by PHMC  in  other aspects  of  the
processing  of these loans varies  considerably; whereas, PHMC typically assists
the borrower referred by corporate  clients through the application stage,  PHMC
tends  to  have  limited contact  with  those borrowers  whose  applications are
processed on PHMC's behalf by certain  mortgage brokers or similar entities,  as
discussed below. Taken as a whole, however, PHMC's processing role in connection
with  loans generated either as a result  of referrals from corporate clients or
from mortgage brokers and  similar entities generally  exceeds the more  limited
processing  role  associated with  loans acquired  from PHMC's  third production
source, other  originators.  It is  PHMC's  practice  to review  the  loan  file
submitted  to  it by  the other  originator;  order a  new credit  report; under
certain limited circumstances, order  a review appraisal; and,  on the basis  of
its  analysis of both  the data that  it has received  and the data  that it has
gathered, determine  whether  to  accept  or reject  the  loan.  For  each  loan
purchased  by PHMC, the seller, or the other originator that previously sold the
loan to PHMC's seller, will have taken the borrower's loan application, obtained
the initial  credit reports,  ordered the  original appraisal  and provided  all
necessary  documentation  and disclosure  relating  to compliance  with federal,
state or local law applicable to mortgage loan origination and servicing.
 
    A majority of PHMC's corporate clients are companies that sponsor relocation
programs for their employees and in connection with which PHMC provides mortgage
financing. Eligibility  for  a relocation  loan  is  based, in  general,  on  an
employer's   providing  financial  assistance  to  the  relocating  employee  in
connection with a job-required  move. Although all  Subsidy Loans are  generated
through  such  corporate-sponsored  programs,  the  assistance  extended  by the
employer need  not  necessarily  take the  form  of  a loan  subsidy.  (Not  all
relocation  loans are  generated by  PHMC through  referrals from  its corporate
clients: some  relocation loans  are generated  as a  result of  referrals  from
mortgage  brokers  and similar  entities;  others are  generated  through PHMC's
acquisition of  mortgage  loans  from  other  originators.)  Also  among  PHMC's
corporate  clients are various professional associations. These associations, as
well as the other corporate clients,  promote the availability of a broad  range
of  PHMC mortgage  products to their  members or  employees, including refinance
loans, second-home loans and investment-property loans.
 
    Mortgage brokers, realtors (including  affiliates of Prudential  Insurance),
mortgage  bankers, commercial bankers, developers,  and builders also refer loan
applicants to PHMC.  Although the extent  to which mortgage  brokers or  similar
entities  will assist borrowers in  the application process varies considerably,
PHMC's role in the processing of  loans originated under this program  typically
involves the ordering of credit reports, as well as the ordering of the property
appraisal.  PHMC  may,  however,  permit certain  mortgage  brokers  and similar
entities to make  an initial determination  as to compliance  of mortgage  loans
with  PHMC's underwriting  guidelines. Under such  circumstances, the applicable
third parties take the loan  applications, obtain the borrowers' credit  reports
and  order  the property  appraisals from  qualified  appraisers. In  advance of
reaching a financing decision  with respect to such  loans, PHMC will  typically
order both review appraisals and additional credit reports.
 
    In  order  to qualify  for participation  in  PHMC's mortgage  loan purchase
programs, lending institutions must (i) meet and maintain certain net worth  and
other   financial   standards,  (ii)   demonstrate  experience   in  originating
residential  mortgage  loans,  (iii)  meet  and  maintain  certain   operational
standards,  (iv) evaluate each loan offered  to PHMC for consistency with PHMC's
underwriting guidelines and  (v) utilize the  services of qualified  appraisers.
The   contractual  arrangements  with  eligible   originators  may  involve  the
commitment by PHMC  to accept delivery  of a certain  dollar amount of  mortgage
loans over a period of time; this commitment may be satisfied either by delivery
of  mortgage loans  one at  a time or  in multiples  as aggregated  by the other
originator. In all instances, however, acceptance by PHMC is contingent upon the
loans being found  to satisfy PHMC's  program standards. PHMC  may also  acquire
portfolios of seasoned loans in negotiated transactions.
 
                                       44
<PAGE>
MORTGAGE LOAN UNDERWRITING
 
    In  determining  whether to  lend to  a particular  mortgage borrower  or to
purchase a mortgage loan, PHMC makes an assessment of the applicant's ability to
repay the loan, as well as an assessment  of the value of the property to  which
the  financing relates. The underwriting  standards that guide the determination
represent a balancing of several factors  that may affect the ultimate  recovery
of  the loan amount, including, among others,  the amount of the loan, the ratio
of the loan amount to the property value (i.e., the lower of the appraised value
of the  mortgaged property  and the  purchase price),  the borrower's  means  of
support  and the borrower's  credit history. PHMC's  guidelines for underwriting
may vary according  to the nature  of the borrower  or the type  of loan,  since
differing  characteristics may  be perceived  as presenting  different levels of
risk.
 
    PHMC's underwriting of  a mortgage  loan may be  based on  data obtained  by
parties  other than  PHMC that  are involved at  various stages  in the mortgage
origination or acquisition process. This typically occurs under circumstances in
which loans are subject to more  than one approval process, as when  third-party
lenders, certain mortgage brokers or similar entities that have been approved by
PHMC to process loans on its behalf, or independent contractors hired by PHMC to
perform  underwriting  services  on its  behalf  ("contract  underwriters") make
initial determinations as  to the  consistency of loans  with PHMC  underwriting
guidelines.   In  such  instances,   certain  information  may,   but  need  not
necessarily, be resolicited by PHMC in connection with its approval process. For
example, in connection with a mortgage loan that is presented to PHMC by another
originator for purchase, PHMC will typically  order a second credit report,  but
it  will only order  a review appraisal under  certain limited circumstances, in
advance of reaching a  purchase decision. However,  in connection with  mortgage
loans that are processed on PHMC's behalf by certain mortgage brokers or similar
entities,  PHMC will customarily order both a  second credit report and a review
appraisal. When contract underwriters  are used, PHMC  will generally not  order
any  supplemental  documentation but  will review  the information  collected by
these providers,  who  are trained  by  PHMC personnel  in  PHMC's  underwriting
practices  and  are  required to  review  all  loans in  accordance  with PHMC's
underwriting guidelines. In  all cases,  PHMC makes the  final determination  to
approve or deny the funding or purchase of a particular mortgage loan.
 
    The loan application elicits pertinent information about the applicant, with
particular  emphasis on  the applicant's financial  health (assets, liabilities,
income and expenses), the property being financed and the type of loan  desired.
A  self-employed applicant  may be  required to  submit his  or her  most recent
signed federal  income tax  returns.  With respect  to every  applicant,  credit
reports  are  obtained  from  commercial  reporting  services,  summarizing  the
applicant's credit history with  merchants and lenders. Significant  unfavorable
credit  information reported by the applicant  or a credit reporting agency must
be explained by the applicant. The type of credit report that PHMC obtains,  and
that   it  authorizes   parties  referring   loans  to   it  to   obtain,  is  a
computer-generated report that  electronically merges  the information  gathered
from   the  data  bases  of  two   major  consumer  credit  repositories  (these
repositories produce what are commonly referred to as "in-file" credit reports).
In connection  with  its underwriting  procedure,  PHMC will,  with  the  single
exception  of the use of contract underwriters,  itself order a credit report of
the type described,  whether or not  a report has  previously been ordered  with
respect  to an applicant for whom another party has processed or approved of the
loan. Certain of the credit reports that PHMC obtains may be purchased through a
credit reporting service with which LSI has a contractual relationship.
 
    Verifications of  employment, income,  assets or  mortgages may  be used  to
supplement   the  loan  application   and  the  credit   report  in  reaching  a
determination as  to  the  applicant's  ability  to  meet  his  or  her  monthly
obligations  on the proposed mortgage loan, as well as his or her other mortgage
payments (if  any),  living  expenses  and  financial  obligations.  A  mortgage
verification  involves  obtaining information  regarding the  borrower's payment
history with  respect to  any existing  mortgage the  applicant may  have.  This
verification  is accomplished  by either  having the  present lender  complete a
verification of mortgage form, evaluating  the information on the credit  report
concerning   the  applicant's   payment  history  for   the  existing  mortgage,
communicating, either  verbally  or in  writing,  with the  applicant's  present
lender or analyzing cancelled
 
                                       45
<PAGE>
checks  provided by the applicant. Verifications  of income, assets or mortgages
may be waived under certain programs offered by PHMC, but PHMC's practice is  to
obtain  verification of employment  for every loan  applicant. Waivers limit the
amount of  documentation required  for  an underwriting  decision and  have  the
effect  of  increasing the  relative  importance of  the  credit report  and the
appraisal. Such  waivers  or  reduced-documentation  options  are,  in  general,
available  for owner-occupied properties  where the ratio of  the loan amount to
the property value does  not exceed 80%.  The interest rate  may be higher  with
respect  to a loan which has been processed according to a reduced documentation
program than a loan which has been processed under a full documentation program.
Documentation requirements vary based  upon a number  of factors, including  the
purpose  of the loan, the amount of the loan and the ratio of the loan amount to
the property value. The  least restrictive reduced-documentation programs  apply
to  the applicant for  a relocation loan  and to the  borrower whose loan amount
does not exceed $600,000 and whose Loan-to-Value Ratio is not in excess of  75%.
PHMC  accepts  alternative methods  of  verification, in  those  instances where
verifications are  part  of the  underwriting  decision; for  example,  salaried
income may be substantiated either by means of a form independently prepared and
signed  by the applicant's employer  or by means of  the applicant's most recent
paystub and W-2. In cases where two  or more persons have jointly applied for  a
mortgage  loan,  the  gross  incomes  and expenses  of  all  of  the applicants,
including nonoccupant co-mortgagors, are combined and considered as a unit.
 
    All borrowers applying for relocation  loans with Loan-to-Value Ratios  less
than  or  equal  to  90%,  as well  as  borrowers  affiliated  with professional
associations applying for loans with Loan-to-Value Ratios less than or equal  to
80%,  and all  other borrowers applying  for non-relocation  mortgage loans with
respect to  which  the Loan-to-Value  Ratios  are less  than  or equal  to  75%,
generally must demonstrate that the ratio of their total monthly housing debt to
their  monthly gross  income does not  exceed 33%,  and that the  ratio of their
total monthly debt to their monthly gross income does not exceed 38%;  borrowers
affiliated  with professional associations  applying for non-relocation mortgage
loans with  Loan-to-Value Ratios  in  excess of  80%,  and all  other  borrowers
applying  for non-relocation mortgage loans  with Loan-to-Value Ratios in excess
of  75%,  generally  must  satisfy  28%  and  36%  ratios,  respectively.  These
calculations are based on the amortization schedule and the interest rate of the
related  loan,  with each  ratio being  computed  on the  basis of  the proposed
monthly mortgage payment.  In the  case of adjustable-rate  mortgage loans,  the
interest  rate used to  determine a mortgagor's monthly  payment for purposes of
the foregoing ratios is the initial  mortgage interest rate, which is  generally
lower  than the sum of the index  that would have been applicable at origination
plus the applicable  margin. In  evaluating applications for  Subsidy Loans  and
Buy-Down  Loans,  the  foregoing  ratios  are  determined  by  including  in the
applicant's total monthly housing  expense and total  monthly debt the  proposed
monthly  mortgage payment  reduced by  the amount  expected to  be applied  on a
monthly basis under the related subsidy  agreement or buy-down agreement or,  in
certain  cases, the  mortgage payment  that would  result from  an interest rate
approximately 2.50%  lower  than the  Mortgage  Interest Rate.  See  "The  Trust
Estates--Mortgage  Loans." These ratios may be  exceeded if, in PHMC's judgment,
certain compensating  factors are  identified and  proved to  its  satisfaction,
including  a  large downpayment,  a  large equity  position  on a  refinance, an
excellent credit history,  substantial liquid  net worth, the  potential of  the
borrower  for continued employment advancement or  income growth, or the ability
of the borrower to accumulate assets or to devote a greater portion of income to
basic needs  such  as  housing  expense. Secondary  financing  is  permitted  on
mortgage  loans  under  certain  circumstances.  In  those  cases,  the  payment
obligations under  both primary  and  secondary financing  are included  in  the
computation  of  the debt-to-income  ratios  described above,  and  the combined
amount  of  primary  and  secondary  loans   will  be  used  to  calculate   the
Loan-to-Value  Ratio. Any  secondary financing  permitted will  generally mature
prior to  the maturity  date of  the  related mortgage  loan. In  evaluating  an
application  with respect to a "non-owner-occupied" property, which PHMC defines
as a property leased to a third party  by its owner (as distinct from a  "second
home,"  which PHMC defines as an owner-occupied, non-rental property that is not
the owner's principal residence), PHMC will permit projected rental income  from
such  property  to  be  included  in the  applicant's  monthly  gross  income if
necessary to  satisfy  the  foregoing  ratios. A  mortgage  loan  secured  by  a
 
                                       46
<PAGE>
two-  to four-family  Mortgaged Property is  considered to  be an owner-occupied
property if the borrower occupies one of  the units; rental income on the  other
units  is generally taken  into account in evaluating  the borrower's ability to
repay the mortgage loan.
 
    Property value  is established  in connection  with the  origination of  any
mortgage  loan  (whether  the loan  is  originated for  purchase  or refinancing
purposes) by means  of an  appraisal, which is  typically ordered  by the  party
originating  the  related  mortgage  loan. Consistent  with  this  practice, the
appraisals with respect  to the  loans generated through  corporate contacts  or
through  referrals from mortgage  brokers or other  similar entities (other than
those certain mortgage brokers or  similar entities that process mortgage  loans
on  PHMC's  behalf) are  generally ordered  by PHMC,  while the  appraisals with
respect to the loans sold  to PHMC by third-party  lenders are ordered by  those
other originators. PHMC may, however, at it discretion, order a review appraisal
with  respect to any loan  generated by a third-party  lender; in addition, PHMC
typically orders review appraisals with  respect to loans that certain  mortgage
brokers  or similar entities process on its behalf. A review appraisal, like the
original appraisal,  involves  the  making  of  a  site  visit,  the  taking  of
photographs, and the gathering of data on comparable properties. Unlike original
appraisals,  however,  review appraisals  do not  include  an inspection  of the
interior of the  house. A  review appraisal is  generally used  to validate  the
decision  made based  upon the original  appraisal. If the  variance between the
original and the review appraisal is significant, an explanation will be  sought
and  the underwriting decision  may be reevaluated.  In certain instances, which
most frequently  involve the  postponement  of the  closing  with respect  to  a
mortgage   loan  on  a  newly  built   home  due  to  construction  delays,  the
recertification of an appraisal  may be required.  A recertification includes  a
physical  inspection  of the  exterior of  the  property and  a statement  by an
appraiser that the present value of the property is no lower than that reflected
on the original appraisal.
 
    There can be no assurance that the values determined by the appraisers as of
the dates  of appraisal  represent the  prices at  which the  related  Mortgaged
Properties  can be sold, either as of  the dates of appraisal or at foreclosure.
The appraisal  of any  Mortgaged Property  reflects the  individual  appraiser's
judgment as to value, based on the market values of comparable homes sold within
the  recent past in comparable nearby locations and on the estimated replacement
cost. The appraisal relates both  to the land and to  the structure; in fact,  a
significant  portion  of the  appraised  value of  a  Mortgaged Property  may be
attributable to the value of the land  rather than to the residence. Because  of
the  unique  locations and  special  features of  certain  Mortgaged Properties,
identifying comparable  properties in  nearby locations  may be  difficult.  The
appraised  values of such Mortgaged Properties will be based to a greater extent
on adjustments made  by the  appraisers to  the appraised  values of  reasonably
similar  properties rather than  on objectively verifiable  sales data. See "The
Trust Estates--Mortgage Loans" herein.
 
    In connection with  all mortgage  loans that it  originates, PHMC  currently
obtains appraisals through LSI. Review appraisals with respect to mortgage loans
that  PHMC acquires, or with respect to  mortgage loans that PHMC originates but
that certain mortgage  brokers or similar  entities process on  its behalf,  are
also  likely  to be  obtained through  LSI.  LSI also  provides its  services to
third-party lenders which sell mortgage loans to PHMC.
 
    Most residential mortgage  lenders have not  originated mortgage loans  with
Loan-to-Value  Ratios in  excess of  80% unless  primary mortgage  insurance was
obtained. PHMC, however, does not require primary mortgage insurance on loans up
to $400,000 that have Loan-to-Value Ratios exceeding 80% but less than or  equal
to  90%.  Only owner-occupied,  primary  residences (excluding  cooperatives and
certain high-rise condominium  dwellings) are  eligible for  this program.  Each
qualifying  loan will be made  at an interest rate that  is higher than the rate
would be if  the Loan-to-Value  Ratio was  80% or  less or  if primary  mortgage
insurance  was  obtained. Loans  that do  not  qualify for  such program  may be
approved if  primary mortgage  insurance is  obtained from  an approved  primary
mortgage  insurance company. In such cases, the  excess over 75% will be covered
by primary mortgage insurance until the unpaid principal balance of the Mortgage
Loan is reduced to an amount that will result in a Loan-to-Value Ratio less than
or equal to 80%.
 
                                       47
<PAGE>
    Where permitted by law, PHMC generally  requires that a borrower include  in
each  monthly payment a  portion of the real  estate taxes, assessments, primary
mortgage insurance  (if applicable),  and hazard  insurance premiums  and  other
similar items with respect to the related mortgage loan. PHMC may, however, on a
case-by-case  basis, in  its discretion  not require  such advance  payments for
certain Mortgage Loans, based on an evaluation of the borrowers' ability to  pay
such taxes and charges as they become due.
 
MORTGAGE ORIGINATION PROCESSING
 
    PHMC,  or  an  affiliate  of PHMC,  may  provide  loan  processing services,
including document preparation, underwriting analysis and closing functions,  to
other  loan originators. It is  possible that PHMC may  purchase loans from such
loan originators,  or  from mortgage  sellers  that purchased  loans  from  such
originators,  that PHMC itself processed. Any  such loans purchased by PHMC will
meet PHMC's underwriting guidelines.
 
SERVICING
 
    Prior to  June  30,  1989,  all residential  mortgage  loans  originated  or
purchased by PHMC for its own account or for the account of Prudential Insurance
were  serviced by its affiliate, PMCC. On June 30, 1989, PHMC assumed all of the
residential mortgage servicing activities then  being performed by PMCC. On  May
31,  1991, PHMC entered into a Subservicing Agreement with AMC pursuant to which
PHMC  will  sub-service  AMC's  current   servicing  portfolio  of  FHA/VA   and
conventional  loans. PHMC is an approved servicer of FNMA, FHLMC and GNMA. As of
December 31,  1991, PHMC  had a  net worth  of approximately  $213 million.  See
"Servicing of the Mortgage Loans--The Servicer" below.
 
                                USE OF PROCEEDS
 
    The  net proceeds from the sale of  each Series of Certificates will be used
by the  Seller  for  the purchase  of  the  Mortgage Loans  represented  by  the
Certificates  of such Series  from PHMC. It  is expected that  PHMC will use the
proceeds from the  sale of  the Mortgage  Loans to  the Seller  for its  general
business purposes, including, without limitation, the origination or acquisition
of  new mortgage loans and  the repayment of borrowings  incurred to finance the
origination or  acquisition  of mortgage  loans,  including the  Mortgage  Loans
underlying the Certificates of such Series.
 
                        SERVICING OF THE MORTGAGE LOANS
 
THE SERVICER
 
    The  Servicer with  respect to  a Series of  Certificates will  be PHMC. See
"PHMC--Servicing" above. The Servicer may subcontract its servicing  obligations
under  any Pooling and  Servicing Agreement. The  Servicer will remain primarily
liable for any such subservicer's performance in accordance with the  applicable
Pooling  and Servicing Agreement. The  Servicer presently intends to subcontract
certain  of  its  administrative  functions  under  the  Pooling  and  Servicing
Agreements  to Securitized  Asset Services  Corporation ("SASCOR").  SASCOR is a
direct, wholly-owned subsidiary of  Residential Services Corporation of  America
and  an affiliate of the Seller and the Servicer. SASCOR was formed on September
23, 1992 to master service residential mortgage loans and to provide  securities
administration   services   in   connection   with   mortgage-backed  securities
transactions. The  Servicer may  be  released from  its obligations  in  certain
circumstances.  See "Servicing of the  Mortgage Loans--Certain Matters Regarding
the Servicer."
 
    Each Prospectus Supplement relating to a Series of Certificates will contain
information concerning recent delinquency, foreclosure and loan loss  experience
on  the  mortgage  loans  included  in  PHMC's  servicing  portfolio  which were
originated or acquired by  PHMC for its  own account or for  the account of  its
affiliates  ("Program Loans"), and, if available,  on those Program Loans having
payment terms generally similar  to those of the  Mortgage Loans in the  related
Trust  Estate. PHMC's total servicing portfolio of  Program Loans as of any date
may include  loans  having  a  variety  of  payment  characteristics,  including
adjustable  rate mortgage loans and loans subject to subsidy agreements, and the
overall delinquency, foreclosure and loan  loss experience of the Program  Loans
taken  as a whole  may differ from that  of the Mortgage  Loans contained in any
given Trust Estate and from that of mortgage servicers generally.
 
                                       48
<PAGE>
PAYMENTS ON MORTGAGE LOANS
 
    The Servicer will, as to each Series of Certificates, establish and maintain
a  separate  trust  account  or  accounts  in  the  name  of  the  Trustee  (the
"Certificate  Account"), which must be  maintained with a depository institution
(the "Depository") either (i) whose long-term debt obligations (or, in the  case
of  a depository institution which  is part of a  holding company structure, the
long term debt obligations  of which) are,  at the time  of any deposit  therein
rated   at  least  "AA"  (or  the  equivalent)  by  each  nationally  recognized
statistical rating organization that rated  the related Series of  Certificates,
or  (ii) that is  otherwise acceptable to  the Rating Agency  or Rating Agencies
rating the Certificates of such Series and,  if a REMIC election has been  made,
that  would not cause the  related Trust Estate (or  a segregated pool of assets
therein) to fail to qualify as a REMIC. To the extent that the portion of  funds
deposited  in the Certificate Account at any time exceeds the limit of insurance
coverage established by the Federal Deposit Insurance Corporation (the  "FDIC"),
such  excess  will  be subject  to  loss in  the  event  of the  failure  of the
Depository. Such insurance coverage  will be based on  the number of holders  of
Certificates,  rather than the  number of underlying  mortgagors. Holders of the
Subordinated Certificates of  a Series  of Shifting  Interest Certificates  will
bear  any  such loss  up  to the  amount of  principal  payments on  the related
Mortgage Loans to which such holders are entitled.
 
    The Servicer will  deposit in  the Certificate  Account for  each Series  of
Certificates  any  amounts  representing  scheduled  payments  of  principal and
interest on  the  Mortgage Loans  due  after  the applicable  Cut-Off  Date  but
received  on or prior thereto, and, on a daily basis, except as specified in the
applicable  Pooling  and  Servicing   Agreement,  the  following  payments   and
collections received or made by it with respect to the Mortgage Loans subsequent
to the applicable Cut-Off Date (other than payments due on or before the Cut-Off
Date):
 
           (i)
           all  payments  on account  of  principal, including  prepayments, and
           interest;
 
          (ii)
           all  amounts  received  by  the  Servicer  in  connection  with   the
           liquidation  of  defaulted  Mortgage Loans  or  property  acquired in
    respect thereof, whether  through foreclosure sale  or otherwise,  including
    payments  in  connection with  defaulted  Mortgage Loans  received  from the
    mortgagor other than amounts required to  be paid to the mortgagor  pursuant
    to  the terms of the  applicable Mortgage Loan or  otherwise pursuant to law
    ("Liquidation Proceeds") less, to the extent permitted under the  applicable
    Pooling  and Servicing  Agreement, the  amount of  any expenses  incurred in
    connection with the liquidation of such Mortgage Loans;
 
         (iii)
           all proceeds  received by  the Servicer  under any  title, hazard  or
           other  insurance policy covering  any such Mortgage  Loan, other than
    proceeds to be applied to the restoration or repair of the property  subject
    to  the related Mortgage or released to the mortgagor in accordance with the
    applicable Pooling and Servicing Agreement;
 
          (iv)
           all amounts required to be deposited therein from any related Reserve
           Fund,  and  amounts  available  under   any  other  form  of   credit
    enhancement applicable to such Series;
 
           (v)
           all Periodic Advances made by the Servicer;
 
          (vi)
           all  amounts withdrawn from Buy-Down Funds  or Subsidy Funds, if any,
           with respect to such Mortgage Loans, in accordance with the terms  of
    the respective agreements applicable thereto;
 
         (vii)
           all  proceeds  of any  such Mortgage  Loans  or property  acquired in
           respect thereof purchased or repurchased pursuant to the Pooling  and
    Servicing Agreement; and
 
        (viii)
           all  other amounts required  to be deposited  therein pursuant to the
           applicable Pooling and Servicing Agreement.
 
    Notwithstanding the  foregoing,  the  Servicer  will  be  entitled,  at  its
election,  either (a)  to withhold and  pay itself the  applicable Servicing Fee
and/or to withhold and  pay to the  owner thereof the  Fixed Retained Yield,  if
any,  from any payment or other recovery  on account of interest as received and
prior to deposit in the
 
                                       49
<PAGE>
Certificate Account or (b) to withdraw  the applicable Servicing Fee and/or  the
Fixed  Retained Yield,  if any,  from the  Certificate Account  after the entire
payment or recovery  has been  deposited therein; provided,  however, that  with
respect  to each  Trust Estate (or  a segregated  pool of assets  therein) as to
which a  REMIC election  has been  made, the  Servicer will,  in each  instance,
withhold  and pay to the owner thereof the Fixed Retained Yield prior to deposit
of the related payment or recovery in the Certificate Account.
 
    Periodic Advances,  amounts  withdrawn from  any  Buy-Down Fund  or  Subsidy
Account,  amounts withdrawn from  any reserve fund,  and amounts available under
any other  form of  credit enhancement,  will be  deposited in  the  Certificate
Account not later than the business day preceding the Distribution Date on which
such amounts are required to be distributed. All other amounts will be deposited
in  the Certificate Account not  later than the business  day next following the
day of receipt and posting by the Servicer.
 
    If the Servicer deposits in the Certificate Account for a Series any  amount
not  required to be deposited  therein, it may at  any time withdraw such amount
from such Certificate Account. Funds on  deposit in the Certificate Account  may
be  invested in certain Eligible Investments  maturing in general not later than
the business day  preceding the  next Distribution Date.  In the  event that  an
election has been made to treat the Trust Estate (or a segregated pool of assets
therein)  with respect to a Series as a REMIC, no such Eligible Investments will
be sold or  disposed of  at a  gain prior to  maturity unless  the Servicer  has
received  an opinion of counsel  or other evidence satisfactory  to it that such
sale or  disposition will  not cause  the Trust  Estate (or  segregated pool  of
assets)  to be subject to  the tax on "prohibited  transactions" imposed by Code
Section 860F(a)(1), otherwise subject  the Trust Estate  (or segregated pool  of
assets) to tax, or cause the Trust Estate (or segregated pool of assets) to fail
to  qualify as  a REMIC  while any Certificates  of the  Series are outstanding.
Except as  otherwise  specified in  the  applicable Prospectus  Supplement,  all
income and gain realized from any such investment will be for the account of the
Servicer  as  additional servicing  compensation and  all  losses from  any such
investment will  be  deposited by  the  Servicer into  the  Certificate  Account
immediately as realized.
 
    The  Servicer is permitted, from time to  time, to make withdrawals from the
Certificate Account for the following purposes,  to the extent permitted in  the
applicable Pooling and Servicing Agreement:
 
           (i)
           to reimburse itself for Periodic Advances;
 
          (ii)
           to reimburse itself for liquidation expenses and for amounts expended
           by it in connection with the restoration of damaged property;
 
         (iii)
           to  pay to itself  the applicable Servicing Fee  and/or pay the owner
           thereof any Fixed Retained  Yield, in the event  the Servicer is  not
    required,  and has elected not, to withhold  such amounts out of any payment
    or other recovery with  respect to a particular  Mortgage Loan prior to  the
    deposit of such payment or recovery in the Certificate Account;
 
          (iv)
           to  reimburse itself  for certain  expenses (including  taxes paid on
           behalf of  the  Trust  Estate)  incurred by  and  recoverable  by  or
    reimbursable to it;
 
           (v)
           to  pay to the Seller with respect  to each Mortgage Loan or property
           acquired in respect thereof that has been repurchased by the  Seller,
    all  amounts received thereon and not distributed as of the date as of which
    the purchase price of such Mortgage Loan was determined;
 
          (vi)
           to pay itself any interest earned on or investment income earned with
           respect to funds  in the  Certificate Account (all  such interest  or
    income to be withdrawn not later than the next Distribution Date);
 
         (vii)
           to  pay itself from  net Liquidation Proceeds  allocable to interest,
           the amount of  any unpaid  Servicing Fees and  any unpaid  assumption
    fees,  late  payment  charges  or other  mortgagor  charges  on  the related
    Mortgage Loan;
 
                                       50
<PAGE>
        (viii)
           to withdraw from the Certificate Account any amount deposited in  the
           Certificate Account that was not required to be deposited therein;
 
          (ix)
           to  make withdrawals  from the Certificate  Account in  order to make
           distributions to Certificateholders; and
 
           (x)
           to clear and terminate the Certificate Account.
 
    The Servicer  will be  authorized to  appoint a  paying agent  (the  "Paying
Agent")  to make distributions, as agent for the Servicer, to Certificateholders
of a Series. If  the Paying Agent for  a Series is the  Trustee of such  Series,
such  Paying Agent will  be authorized to make  withdrawals from the Certificate
Account in  order to  make distributions  to Certificateholders.  If the  Paying
Agent  for a Series is not the Trustee for such Series, the Servicer will, prior
to each Distribution Date, deposit in immediately available funds in an  account
designated  by the  Paying Agent  the amount required  to be  distributed to the
Certificateholders on such Distribution Date.
 
    The Servicer will cause any Paying Agent which is not the Trustee to execute
and deliver to the Trustee an instrument in which such Paying Agent agrees  with
the Trustee that such Paying Agent will:
 
       (1) hold  all amounts deposited with it  by the Servicer for distribution
           to Certificateholders in trust for the benefit of  Certificateholders
    until  such  amounts  are  distributed  to  Certificateholders  or otherwise
    disposed of as provided in the applicable Pooling and Servicing Agreement;
 
       (2) give the Trustee notice of any default by the Servicer in the  making
           of such deposit; and
 
       (3) at  any time during the continuance of any such default, upon written
           request of the Trustee, forthwith pay to the Trustee all amounts held
    in trust by such Paying Agent.
 
PERIODIC ADVANCES AND LIMITATIONS THEREON
 
    With respect  to each  Series,  the Servicer  will  agree to  make  Periodic
Advances in the amounts specified in the applicable Prospectus Supplement. Funds
of  the Servicer  so advanced  are recoverable  by the  Servicer out  of amounts
received on Mortgage Loans  with respect to which  such funds were advanced  and
which  represent late recoveries  of principal and/or  interest respecting which
any such Periodic  Advance was  made, or, if  the Servicer  determines that  any
Periodic  Advance may not be so recoverable, out of any funds in the Certificate
Account. The Servicer  will make Periodic  Advances only if  it determines  that
funds  will  ultimately  be  available  to reimburse  it.  If  specified  in the
applicable Prospectus Supplement, a reserve fund may be established with respect
to any Series  of Certificates in  order to  provide a source  of liquidity  for
Periodic  Advances by the  Servicer. Any such  reserve fund will  be funded by a
deposit made by the Servicer in such an amount specified, and will otherwise  be
as described, in the applicable Prospectus Supplement.
 
ADJUSTMENT TO SERVICING FEE IN CONNECTION WITH PREPAID MORTGAGE LOANS
 
    When a mortgagor prepays all of a Mortgage Loan, the mortgagor pays interest
on the amount prepaid only to the date on which the principal prepayment in full
is  made. Unless otherwise specified in the applicable Prospectus Supplement, in
order to mitigate the adverse effect to Certificateholders of a Series resulting
from the prepayment  in full  of a  Mortgage Loan  the amount  of the  aggregate
Servicing  Fees will be offset by an amount  equal to the accrual of interest on
any fully  prepaid Mortgage  Loan at  the Net  Mortgage Interest  Rate for  such
Mortgage  Loan from the date of its prepayment to but not including the next Due
Date (the "Prepayment  Interest Shortfall").  Such reductions  in the  aggregate
Servicing  Fees will be made by the  Servicer with respect to the Mortgage Loans
under the applicable  Pooling and Servicing  Agreement, but only  to the  extent
that  the aggregate Prepayment Interest Shortfall  does not exceed the aggregate
amount of the Servicing Fee relating  to mortgagor payments or other  recoveries
distributed  on the related Distribution Date.  The amount of the offset against
the  aggregate  Servicing  Fees  will  be  included  in  the  distributions   to
Certificateholders  on  the Distribution  Date  on which  the  related principal
prepayments in full are passed  through to Certificateholders. Unless  otherwise
specified  in  the  applicable  Prospectus  Supplement,  any  interest shortfall
arising from partial  prepayments or  liquidations will  not be  so offset.  See
"Prepayment and
 
                                       51
<PAGE>
Yield Considerations." Payments of the Prepayment Interest Shortfall will not be
obtained   by  means  of  any  subordination   of  the  rights  of  Subordinated
Certificateholders or any other credit enhancement arrangement.
 
REPORTS TO CERTIFICATEHOLDERS
 
    Unless otherwise specified or modified in the related Pooling and  Servicing
Agreement  for each Series, the Servicer will include, or, in the event a Paying
Agent has been  appointed with  respect to such  Series, will  cause the  Paying
Agent to include, with each distribution to Certificateholders of record of such
Series a statement setting forth the following information, if applicable:
 
           (i)
           to each holder of a Certificate other than a Multi-Class Certificate,
           the amount of such distribution allocable to principal of the related
    Mortgage Loans, separately identifying the aggregate amount of any principal
    prepayments  included therein, the amount  of such distribution allocable to
    interest on the related  Mortgage Loans and  the aggregate unpaid  principal
    balance of the Mortgage Loans evidenced by each Class after giving effect to
    the principal distributions on such Distribution Date;
 
          (ii)
           to  each holder  of a  Multi-Class Certificate  on which  an interest
           distribution and a  distribution in  reduction of  Stated Amount  are
    then  being made, the amount of  such interest distribution and distribution
    in reduction of  Stated Amount, and  the Stated Amount  of each Class  after
    giving effect to the distribution in reduction of Stated Amount made on such
    Distribution Date;
 
         (iii)
           to  each holder of a Multi-Class  Certificate on which a distribution
           of interest only is then being  made, the aggregate Stated Amount  of
    Certificates   outstanding  of  each  Class   after  giving  effect  to  the
    distribution in reduction of  Stated Amount made  on such Distribution  Date
    and  on any Special Distribution Date  occurring subsequent to the last such
    report and after including in the aggregate Stated Amount the Stated  Amount
    of the Compound Interest Certificates, if any, outstanding and the amount of
    any  accrued interest added  to the Stated Amount  of such Compound Interest
    Certificates on such Distribution Date;
 
          (iv)
           to each  holder of  a  Multi-Class Certificate  which is  a  Compound
           Interest Certificate (but only if such holder shall not have received
    a distribution of interest equal to the entire amount of interest accrued on
    such Certificate with respect to such Distribution Date):
 
           (a) the  information contained  in the  report delivered  pursuant to
               clause (ii) above;
 
           (b) the  interest  accrued  on   such  Class  of  Compound   Interest
               Certificates  with respect to such Distribution Date and added to
       the Stated Amount of such Compound Interest Certificate; and
 
           (c) the Stated Amount of such Class of Compound Interest Certificates
               after giving  effect  to the  addition  thereto of  all  interest
       accrued thereon;
 
           (v)
           to each holder of a Certificate, the amount of servicing compensation
           with  respect to  the related Trust  Estate and  such other customary
    information  as  the  Servicer  deems  necessary  or  desirable  to   enable
    Certificateholders to prepare their tax returns;
 
          (vi)
           to  each holder of  a Certificate, the amount  by which the Servicing
           Fee has been reduced by  the aggregate Prepayment Interest  Shortfall
    for the related Distribution Date;
 
         (vii)
           the  aggregate  amount  of  any  Periodic  Advances  by  the Servicer
           included   in    the   amounts    actually   distributed    to    the
    Certificateholders;
 
                                       52
<PAGE>
        (viii)
           to  each holder  of each  Senior Certificate  (other than  a Shifting
           Interest Certificate):
 
           (a) the  amount  of  funds,   if  any,  otherwise  distributable   to
               Subordinated  Certificateholders and the amount of any withdrawal
       from  the  Subordination  Reserve  Fund  included  in  amounts   actually
       distributed to Senior Certificateholders;
 
           (b) the   Subordinated  Amount  remaining  and  the  balance  in  the
               Subordination Reserve Fund following such distribution; and
 
           (c) the amount of any Senior Class Shortfall with respect to, and the
               amount of any Senior Class Carryover Shortfall outstanding  prior
       to, such Distribution Date;
 
          (ix)
           to  each holder of a Certificate entitled to the benefits of payments
           under any form of credit enhancement  or from any reserve fund  other
    than the Subordination Reserve Fund:
 
           (a) the  amounts  so  distributed  under  any  such  form  of  credit
               enhancement or  from  any such  reserve  fund on  the  applicable
       Distribution Date; and
 
           (b) the  amount of coverage  remaining under any  such form of credit
               enhancement and the balance in any such fund, after giving effect
       to any  payments thereunder  and  other amounts  charged thereto  on  the
       Distribution Date;
 
           (x)
           in  the case of a Series of Certificates with a variable Pass-Through
           Rate, such Pass-Through Rate;
 
          (xi)
           the book value of any collateral acquired by the Trust Estate through
           foreclosure or
    otherwise;
 
         (xii)
           the unpaid principal  balance of any  Mortgage Loan as  to which  the
           Servicer  has  determined not  to foreclose  because it  believes the
    related Mortgaged Property may be contaminated with or affected by hazardous
    wastes or hazardous substances; and
 
        (xiii)
           the number  and  aggregate principal  amount  of Mortgage  Loans  one
           month, two months and three or more months delinquent.
 
    In  addition,  within a  reasonable period  of  time after  the end  of each
calendar year, the Servicer will furnish either directly, or through the  Paying
Agent,  if any, a report to each  Certificateholder of record at any time during
such calendar year (a) as to the  aggregate of amounts reported pursuant to  (i)
and  (ii) above,  as applicable, 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  information  as
required  by the Code and applicable  regulations thereunder and as the Servicer
deems necessary or desirable to  enable Certificateholders to prepare their  tax
returns.  (Section 4.02.) In the  event that an election  has been made to treat
the Trust  Estate (or  a segregated  pool of  assets therein)  as a  REMIC,  the
Trustee  will be required  to sign the  Federal income tax  returns of the REMIC
(which will  be prepared  by  the Servicer).  See  "Certain Federal  Income  Tax
Consequences--Federal  Income Tax Consequences for REMIC Certificates-- Taxation
of Residual Certificates--Administrative Matters."
 
REPORTS TO THE TRUSTEE
 
    No later  than  15 days  after  each Distribution  Date  for a  Series,  the
Servicer will provide the Trustee of such Series with a report setting forth the
status  of the related Certificate Account and the related Subordination Reserve
Fund and any other reserve fund as of the close of business on such Distribution
Date, stating that all distributions required  to be made by the Servicer  under
the  applicable  Pooling  and Servicing  Agreement  have  been made  (or  if any
required distribution has not been made  by the Servicer, specifying the  nature
and  status thereof) and showing, for the  period covered by such statement, the
aggregate of deposits to and withdrawals  from the Certificate Account for  each
category  of deposits  and withdrawals  specified in  the Pooling  and Servicing
Agreement.  Such  statement  shall  also  include  information  as  to  (i)  the
 
                                       53
<PAGE>
aggregate unpaid principal balances of all the Mortgage Loans as of the close of
business  on  the  last day  of  the month  preceding  the month  in  which such
Distribution Date occurs; and (ii) the amount of any Subordination Reserve  Fund
and any other reserve fund, as of such Distribution Date (after giving effect to
the  distributions on  such Distribution  Date). Copies  of such  reports may be
obtained  by  Certificateholders  upon  request  in  writing  addressed  to  the
Servicer,  c/o The Prudential  Home Mortgage Company,  Inc., 7470 New Technology
Way, Frederick, Maryland  21701. If  the Servicer  should fail  to provide  such
copies, they may be obtained from the Trustee. (Section 3.12).
 
COLLECTION AND OTHER SERVICING PROCEDURES
 
    The Servicer will make reasonable efforts to collect all payments called for
under  the Mortgage Loans  and will, consistent with  the applicable Pooling and
Servicing Agreement and any  applicable agreement governing  any form of  credit
enhancement,  follow such  collection procedures as  it follows  with respect to
mortgage loans  serviced  by it  that  are  comparable to  the  Mortgage  Loans.
Consistent  with the above, the  Servicer may, in its  discretion, (i) waive any
prepayment charge, assumption fee,  late payment charge or  any other charge  in
connection  with  the prepayment  of a  Mortgage  Loan and  (ii) arrange  with a
mortgagor a schedule for  the liquidation of deficiencies  running for not  more
than 180 days after the applicable Due Date.
 
    Under  the  Pooling and  Servicing Agreement,  the  Servicer, to  the extent
permitted by law, will establish and  maintain one or more escrow accounts  (the
"Servicing  Account")  in which  the Servicer  will be  required to  deposit any
payments made by mortgagors in advance for taxes, assessments, primary  mortgage
(if   applicable)  and  hazard  insurance  premiums  and  other  similar  items.
Withdrawals from the Servicing Account may  be made to effect timely payment  of
taxes,  assessments,  mortgage and  hazard  insurance, to  refund  to mortgagors
amounts determined to be overages, to pay interest to mortgagors on balances  in
the Servicing Account, if required, and to clear and terminate such account. The
Servicer  will be responsible for the  administration of each Servicing Account.
The Servicer will be obligated to  advance certain amounts which are not  timely
paid  by the mortgagors, to  the extent that it  determines, in good faith, that
they will be  recoverable out  of insurance proceeds,  liquidation proceeds,  or
otherwise.  Alternatively,  in lieu  of  establishing a  Servicing  Account, the
Servicer may procure a performance bond or other form of insurance coverage,  in
an  amount  acceptable  to  the  Rating  Agency  rating  the  related  Series of
Certificates, covering loss occasioned  by the failure  to escrow such  amounts.
(Section 3.06.)
 
ENFORCEMENT OF DUE-ON-SALE CLAUSES; REALIZATION UPON DEFAULTED MORTGAGE LOANS
 
    With  respect to  each Mortgage  Loan having  a fixed  interest rate, unless
otherwise specified in  the applicable Prospectus  Supplement, each Pooling  and
Servicing  Agreement will provide that, when  any Mortgaged Property is about to
be conveyed by the mortgagor, the Servicer will, to the extent it has  knowledge
of  such prospective conveyance, exercise its  rights to accelerate the maturity
of such Mortgage Loan under the "due-on-sale" clause applicable thereto, if any,
unless it is  not exercisable  under applicable law  or if  such exercise  would
result  in loss  of insurance  coverage with  respect to  such Mortgage  Loan or
would, in the Servicer's judgment, be reasonably likely to result in  litigation
by  the mortgagor. In either  case, the Servicer is  authorized to take or enter
into an assumption and  modification agreement from or  with the person to  whom
such  Mortgaged Property has been or is  about to be conveyed, pursuant to which
such person becomes  liable under the  Mortgage Note and,  unless prohibited  by
applicable  state law, the  mortgagor remains liable  thereon, provided that the
Mortgage Loan will continue to be covered  by any pool insurance policy and  any
related  primary mortgage insurance  policy and the  Mortgage Interest Rate with
respect to such Mortgage Loan and the payment terms shall remain unchanged.  The
Servicer  will also be authorized,  with the prior approval  of the pool insurer
and the  primary mortgage  insurer, if  any,  to enter  into a  substitution  of
liability  agreement with such person, pursuant  to which the original mortgagor
is released  from liability  and such  person is  substituted as  mortgagor  and
becomes liable under the Mortgage Note. (Section 3.08)
 
                                       54
<PAGE>
    The Servicer is obligated under the Pooling and Servicing Agreement for each
Series  to realize upon  defaulted Mortgage Loans in  accordance with its normal
servicing practices, which will conform  generally to those of prudent  mortgage
lending  institutions which service mortgage loans of  the same type in the same
jurisdictions. Notwithstanding the foregoing,  the Servicer is authorized  under
the  Pooling and  Servicing Agreement  to permit  the assumption  of a defaulted
Mortgage Loan rather than to foreclose  or accept a deed-in-lieu of  foreclosure
if,  in the  Servicer's judgment, the  default is  unlikely to be  cured and the
assuming borrower meets PHMC's underwriting  guidelines. In connection with  any
such assumption, the Mortgage Interest Rate and the payment terms of the related
Mortgage  Note  will  not  be changed.  See  also  "The  Trust Estates--Mortgage
Loans--Optional Repurchases,"  above,  with respect  to  the Seller's  right  to
repurchase  defaulted Mortgage  Loans. Further,  the Servicer  may encourage the
refinancing of  such defaulted  Mortgage Loans,  including Mortgage  Loans  that
would  permit creditworthy borrowers to  assume the outstanding indebtedness. In
the case of foreclosure or of damage  to a Mortgaged Property from an  uninsured
cause,  the Servicer  is not required  to expend  its own funds  to foreclose or
restore any  damaged property,  unless it  reasonably determines  (i) that  such
foreclosure  or restoration will increase  the proceeds to Certificateholders of
such Series  of liquidation  of the  Mortgage Loan  after reimbursement  of  the
Servicer  for its expenses and (ii) that such expenses will be recoverable to it
through Liquidation Proceeds. In  the event that the  Servicer has expended  its
own funds for foreclosure or to restore damaged property, it will be entitled to
charge  the Certificate Account for such Series an amount equal to all costs and
expenses incurred by it. (Sections 3.03 and 3.09).
 
    The Servicer is not obligated to  foreclose on any Mortgaged Property  which
it  believes  may  be  contaminated  with or  affected  by  hazardous  wastes or
hazardous   substances.   See   "Certain   Legal   Aspects   of   the   Mortgage
Loans--Environmental  Considerations." If the  Servicer does not  foreclose on a
Mortgaged Property, the Certificateholders of the related Series may  experience
a  loss on  the related Mortgage  Loan. The Servicer  will not be  liable to the
Certificateholders if it  fails to foreclose  on a Mortgaged  Property which  it
believes may be so contaminated or affected, even if such Mortgaged Property is,
in  fact, not so contaminated or affected.  Conversely, the Servicer will not be
liable  to  the  Certificateholders  if,  based  on  its  belief  that  no  such
contamination  or effect exists, the Servicer forecloses on a Mortgaged Property
and takes  title  to such  Mortgaged  Property, and  thereafter  such  Mortgaged
Property is determined to be so contaminated or affected.
 
    The  Servicer may foreclose  against property securing  a defaulted Mortgage
Loan either by foreclosure, by sale or by strict foreclosure and in the event  a
deficiency  judgment is  available against  the mortgagor  or other  person (see
"Certain Legal Aspects  of the Mortgage  Loans--Anti-Deficiency Legislation  and
Other Limitations on Lenders" for a discussion of the availability of deficiency
judgments), may proceed for the deficiency. It is anticipated that in most cases
the  Servicer  will  not seek  deficiency  judgments,  and the  Servicer  is not
required under the Pooling and Servicing Agreement to seek deficiency judgments.
 
    With respect to a Trust Estate (or  a segregated pool of assets therein)  as
to  which a REMIC election  has been made, if  the trustee acquires ownership of
any Mortgaged Property  as a  result of  a default  or imminent  default of  any
Mortgage  Loan secured by such Mortgaged  Property, the Trustee will be required
to dispose of such  property within two years  following its acquisition by  the
Trust  Estate. The  Servicer also will  be required to  administer the Mortgaged
Property in a  manner which does  not cause  the Mortgaged Property  to fail  to
qualify  as "foreclosure property" within the meaning of Code Section 860G(a)(8)
or result in the receipt by the Trust Estate of any "net income from foreclosure
property" within  the  meaning  of Code  Section  860G(c)(2),  respectively.  In
general,  this would preclude the  holding of the Mortgaged  Property by a party
acting as a dealer in such property or the receipt of rental income based on the
profits of  the  lessee  of  such property.  See  "Certain  Federal  Income  Tax
Consequences."
 
FIXED RETAINED YIELD, SERVICING COMPENSATION AND PAYMENT OF EXPENSES
 
    Fixed  Retained Yield with respect to any  Mortgage Loan is that portion, if
any, of interest  at the  Mortgage Interest  Rate that  is not  included in  the
related   Trust   Estate.  The   Prospectus   Supplement  for   a   Series  will
 
                                       55
<PAGE>
specify whether there is any Fixed  Retained Yield with respect to the  Mortgage
Loans  of such Series. If so, the Fixed  Retained Yield will be established on a
loan-by-loan basis  and will  be specified  in the  schedule of  Mortgage  Loans
attached  as an exhibit  to the applicable Pooling  and Servicing Agreement. The
Servicer may deduct the Fixed Retained Yield from mortgagor payments as received
and prior to deposit of such payments in the Certificate Account for such Series
or may  (unless an  election has  been  made to  treat the  Trust Estate  (or  a
segregated pool of assets therein) as a REMIC) withdraw the Fixed Retained Yield
from  the Certificate Account after the entire payment has been deposited in the
Certificate Account. Notwithstanding the foregoing, with respect to any  payment
of  interest received by the Servicer relating  to a Mortgage Loan (whether paid
by the  mortgagor or  received as  Liquidation Proceeds,  insurance proceeds  or
otherwise)  which is less than the full amount of interest then due with respect
to such Mortgage Loan,  the owner of  the Fixed Retained  Yield with respect  to
such  Mortgage Loan will receive  as its Fixed Retained  Yield only its pro rata
share of such interest payment.
 
    For each Series of  Certificates, the Servicer will  be entitled to be  paid
the  Servicing  Fee  on the  related  Mortgage  Loans until  termination  of the
applicable Pooling and Servicing Agreement, subject, unless otherwise  specified
in  the  applicable  Prospectus  Supplement, to  adjustment  as  described under
"Adjustment to Servicing Fee in Connection with Prepaid and Liquidated  Mortgage
Loans."  The Servicer, at its election, will  pay itself the Servicing Fee for a
Series with respect to each Mortgage  Loan by (a) withholding the Servicing  Fee
from  any scheduled payment of interest prior  to deposit of such payment in the
Certificate Account for such  Series or (b) withdrawing  the Servicing Fee  from
the  Certificate Account after the entire interest payment has been deposited in
the Certificate Account. The Servicer may also pay itself out of the Liquidation
Proceeds of  a  Mortgage Loan  or  other  recoveries with  respect  thereto,  or
withdraw  from the Certificate Account, or if such Liquidation Proceeds or other
recoveries are insufficient, from  Net Foreclosure Profits  with respect to  the
related  Distribution Date the Servicing Fee in respect of such Mortgage Loan to
the extent  provided in  the  applicable Pooling  and Servicing  Agreement.  The
Servicing  Fee with respect to the Mortgage Loans underlying the Certificates of
a Series will be specified  in the applicable Prospectus Supplement.  Additional
servicing  compensation in the form of prepayment charges, assumption fees, late
payment charges or otherwise will be retained by the Servicer.
 
    The Servicer will pay all expenses incurred in connection with the servicing
of the  Mortgage  Loans  underlying a  Series,  including,  without  limitation,
payment  of  the hazard  insurance  policy premiums  and  fees or  other amounts
payable pursuant  to  any  applicable  agreement for  the  provision  of  credit
enhancement  for  such Series,  payment  of the  fees  and disbursements  of the
Trustee and any custodian, fees due to the independent accountants and  expenses
incurred  in connection  with distributions  and reports  to Certificateholders.
Certain of these expenses  may be reimbursable to  the Servicer pursuant to  the
terms of the applicable Pooling and Servicing Agreement.
 
    As  set forth in the  preceding paragraph, the Servicer  will be entitled to
reimbursement for  certain  expenses  incurred  by it  in  connection  with  the
liquidation of defaulted Mortgage Loans. In the event that claims are either not
made  or are not fully paid from  any applicable form of credit enhancement, the
related Trust Estate will suffer a loss to the extent that Liquidation Proceeds,
after reimbursement of the Servicing Fee  and the expenses of the Servicer,  are
less  than the principal balance  of the related Mortgage  Loan. The Servicer is
also  entitled  to  reimbursement  from  the  Certificate  Account  of  Periodic
Advances,  of advances made by  it to pay taxes,  insurance premiums and similar
items with respect to any Mortgaged Property, of expenditures incurred by it  in
connection  with the restoration of any Mortgaged Property and of certain losses
against which it is indemnified by the Trust Estate. (Section 3.03).
 
EVIDENCE AS TO COMPLIANCE
 
    The Servicer will  deliver to the  Trustee annually, on  or before the  date
specified  in  the Pooling  and  Servicing Agreement,  an  Officer's Certificate
stating that (i) a review of the activities of the Servicer during the preceding
calendar year and of performance under  the Pooling and Servicing Agreement  has
been  made under the supervision  of such officer, and (ii)  to the best of such
officer's knowledge, based on such review,
 
                                       56
<PAGE>
the Servicer has fulfilled all its  obligations under the Pooling and  Servicing
Agreement  throughout  such  year,  or,  if there  has  been  a  default  in the
fulfillment of any such obligation, specifying  each such default known to  such
officer  and the nature and status  thereof. Such Officer's Certificate shall be
accompanied by a statement  of a firm of  independent public accountants to  the
effect  that, on the  basis of an  examination of certain  documents and records
relating to  the  mortgage  loans  being serviced  by  the  Servicer,  conducted
substantially  in compliance with the Uniform  Single Audit Program for Mortgage
Bankers, the servicing of such mortgage  loans was conducted in compliance  with
the  provisions  of  the  Pooling  and  Servicing  Agreement  and  other similar
agreements, except  for  (i)  such  exceptions  as  such  firm  believes  to  be
immaterial  and (ii) such other  exceptions as are set  forth in such statement.
(Sections 3.13, 3.14).
 
CERTAIN MATTERS REGARDING THE SERVICER
 
    The Servicer  may not  resign  from its  obligations  and duties  under  the
Pooling  and  Servicing Agreement  for  each Series  (other  than its  duties as
Certificate Registrar for such Series, if it is acting as such), except upon its
determination that  its  duties  thereunder  are  no  longer  permissible  under
applicable  law or are in material conflict by reason of applicable law with any
other activities of a type and nature carried on by it. No such resignation will
become effective until the Trustee for  such Series or a successor servicer  has
assumed  the Servicer's obligations  and duties under  the Pooling and Servicing
Agreement. (Section 6.04).  If the  Servicer resigns  for any  of the  foregoing
reasons  and the  Trustee is  unable or  unwilling to  assume responsibility for
servicing the Mortgage  Loans, it  may appoint another  institution as  mortgage
loan servicer, as described under "Rights Upon Event of Default" below.
 
    The  Pooling  and Servicing  Agreement will  also  provide that  neither the
Servicer, any subservicer, nor any partner, director, officer, employee or agent
of either  of them  (or of  any  partner of  the Servicer),  will be  under  any
liability  to the Trust Estate or the  Certificateholders, for the taking of any
action or for refraining from the taking of any action in good faith pursuant to
the Pooling  and  Servicing Agreement,  or  for errors  in  judgment;  provided,
however, that neither the Servicer, any subservicer, nor any such person will be
protected  against any  liability that would  otherwise be imposed  by reason of
willful misfeasance, bad faith or gross negligence in the performance of his  or
its  duties or  by reason of  reckless disregard  of his or  its obligations and
duties thereunder. The Pooling and Servicing Agreement will further provide that
the Servicer, any subservicer, and  any partner, director, officer, employee  or
agent of either of them (or of any partner of the Servicer) shall be entitled to
indemnification  by the Trust Estate and will be held harmless against any loss,
liability or expense incurred  in connection with any  legal action relating  to
the  Pooling and Servicing  Agreement or the Certificates,  other than any loss,
liability or expense  incurred by reason  of willful misfeasance,  bad faith  or
gross negligence in the performance of his or its duties thereunder or by reason
of  reckless  disregard of  his  or its  obligations  and duties  thereunder. In
addition, the Pooling  and Servicing  Agreement will provide  that the  Servicer
will  not be under  any obligation to  appear in, prosecute  or defend any legal
action that is  not incidental  to its duties  under the  Pooling and  Servicing
Agreement  and that in its  opinion may involve it  in any expense or liability.
The Servicer may, however, in its  discretion, undertake any such action  deemed
by it necessary or desirable with respect to the Pooling and Servicing 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  Estate and  the  Servicer  will be  entitled  to  be
reimbursed  therefor out of the  Certificate Account, and any  loss to the Trust
Estate arising from such right of reimbursement will be allocated pro rata among
the various Classes of Certificates unless otherwise specified in the applicable
Pooling and Servicing Agreement. (Section 6.03).
 
    Any person into  which the Servicer  may be merged  or consolidated, or  any
person  resulting  from any  merger, conversion  or  consolidation to  which the
Servicer is  a party,  or any  person  succeeding to  the business  through  the
transfer  of substantially all of its assets, or otherwise, of the Servicer will
be the successor of the Servicer  under the Pooling and Servicing Agreement  for
each  Series provided  that such successor  or resulting entity  is qualified to
service mortgage loans for FNMA  or FHLMC and has a  net worth of not less  than
$15,000,000.
 
                                       57
<PAGE>
    The Servicer also has the right to assign its rights and delegate its duties
and  obligations  under the  Pooling and  Servicing  Agreement for  each Series;
provided that  (i) the  purchaser  or transferee  accepting such  assignment  or
delegation  is  qualified  to  service  mortgage loans  for  FNMA  or  FHLMC, is
satisfactory to the Trustee for such  Series, in the exercise of its  reasonable
judgment,  and executes and  delivers to the  Trustee an agreement,  in form and
substance reasonably satisfactory to the  Trustee, which contains an  assumption
by  such  purchaser  or  transferee  of the  due  and  punctual  performance and
observance of each  covenant and condition  to be performed  or observed by  the
Servicer  under the Pooling and  Servicing Agreement from and  after the date of
such  agreement;  and  (ii)  each  applicable  Rating  Agency's  rating  of  any
Certificates  for such  Series in effect  immediately prior  to such assignment,
sale or  transfer  is not  reasonably  likely  to be  qualified,  downgraded  or
withdrawn  as a result of such assignment, sale or transfer and the Certificates
are not reasonably  likely to  be placed  on credit  review status  by any  such
Rating  Agency. The  Servicer will  be released  from its  obligations under the
Pooling and Servicing Agreement upon any such assignment and delegation,  except
that  the  Servicer  will  remain liable  for  all  liabilities  and obligations
incurred by it prior to  the time that the  conditions contained in clauses  (i)
and (ii) above are met. (Section 6.02).
 
                      THE POOLING AND SERVICING AGREEMENT
 
EVENTS OF DEFAULT
 
    Events  of Default under the Pooling and Servicing Agreement for each Series
include (i) any failure by the Servicer to distribute to Certificateholders  any
required  payment which  continues unremedied  for 10  days after  the giving of
written notice of such failure to the  Servicer by the Trustee for such  Series,
or to the Servicer and the Trustee by the holders of Certificates of such Series
having  voting  rights  allocated  to  such  Certificates  ("Voting  Interests")
aggregating not  less  than  25%  of  the  Voting  Interests  allocated  to  all
Certificates  for such Series; (ii) any failure  by the Servicer duly to observe
or perform in any material respect any  other of its covenants or agreements  in
the  Pooling and Servicing Agreement which  continues unremedied for 60 days (or
30 days in the case of a failure to maintain any pool insurance policy  required
to  be maintained  pursuant to  the Pooling  and Servicing  Agreement) after the
giving of written notice of such failure  to the Servicer by the Trustee, or  to
the  Servicer and  Trustee by the  holders of Certificates  aggregating not less
than  25%  of  the  Voting  Interests;  (iii)  certain  events  in   insolvency,
readjustment   of  debt,  marshalling  of  assets  and  liabilities  or  similar
proceedings and  certain  action  by the  Servicer  indicating  its  insolvency,
reorganization  or inability to  pay its obligations and  (iv) both the Servicer
and any subservicer  appointed by it  to become ineligible  to service for  both
FNMA and FHLMC (unless remedied within 90 days). (Section 7.01).
 
RIGHTS UPON EVENT OF DEFAULT
 
    So  long as  an Event  of Default remains  unremedied under  the Pooling and
Servicing Agreement for  a Series,  the Trustee for  such Series  or holders  of
Certificates of such Series evidencing not less than 25% of the Voting Interests
in  the  Trust  Estate for  such  Series may  terminate  all of  the  rights and
obligations of the Servicer under the Pooling and Servicing Agreement and in and
to the  Mortgage Loans  (other than  the  Servicer's right  to recovery  of  any
Initial  Deposit for such Series, the aggregate  Servicing Fees due prior to the
date of termination,  and other expenses  and amounts advanced  pursuant to  the
terms  of the  Pooling and Servicing  Agreement, which rights  the Servicer will
retain under all circumstances), whereupon the  Trustee will succeed to all  the
responsibilities,  duties and liabilities of the  Servicer under the Pooling and
Servicing Agreement and will be  entitled to monthly servicing compensation  not
to  exceed  the  aggregate  Servicing Fees  together  with  the  other servicing
compensation in the form of assumption  fees, late payment charges or  otherwise
as  provided  in the  Pooling and  Servicing  Agreement. In  the event  that the
Trustee is unwilling or unable so to act, it may select, pursuant to the  public
bid  procedure described in  the applicable Pooling  and Servicing Agreement, or
petition a  court of  competent  jurisdiction to  appoint,  a housing  and  home
finance  institution, bank or mortgage servicing institution with a net worth of
at least $10,000,000 to act as successor to the Servicer under the provisions of
the Pooling and Servicing  Agreement relating to the  servicing of the  Mortgage
Loans;  provided however, that until such  a successor Servicer is appointed and
 
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has assumed the responsibilities, duties  and liabilities of the Servicer  under
the Pooling and Servicing Agreement, the Trustee shall continue as the successor
to  the Servicer as described  above. In the event  such public bid procedure is
utilized, the successor servicer would be entitled to servicing compensation  in
an  amount  equal  to the  aggregate  Servicing  Fees, together  with  the other
servicing compensation in the form of  assumption fees, late payment charges  or
otherwise,  as provided in the Pooling and Servicing Agreement, and the Servicer
would be entitled to receive the net profits, if any, realized from the sale  of
its  servicing rights and obligations under the Pooling and Servicing Agreement.
(Sections 7.01 and 7.05).
 
    During the  continuance  of any  Event  of  Default under  the  Pooling  and
Servicing  Agreement for  a Series,  the Trustee for  such Series  will have the
right to take  action to  enforce its  rights and  remedies and  to protect  and
enforce  the rights and  remedies of the Certificateholders  of such Series, and
holders of Certificates evidencing not less than 25% of the Voting Interests for
such Series may direct the time,  method and place of conducting any  proceeding
for  any  remedy available  to  the Trustee  or  exercising any  trust  or power
conferred upon  the  Trustee.  However,  the  Trustee  will  not  be  under  any
obligation to pursue any such remedy or to exercise any of such trusts or powers
unless  such Certificateholders have offered  the Trustee reasonable security or
indemnity against the cost,  expenses and liabilities which  may be incurred  by
the  Trustee thereby. Also, the Trustee may decline to follow any such direction
if the Trustee  determines that  the action or  proceeding so  directed may  not
lawfully  be taken  or would  involve it  in personal  liability or  be unjustly
prejudicial to the non-assenting Certificateholders. (Sections 7.02 and 7.03).
 
    No Certificateholder of a Series, solely  by virtue of such holder's  status
as  a Certificateholder,  will have  any right  under the  Pooling and Servicing
Agreement for  such Series  to  institute any  proceeding  with respect  to  the
Pooling  and Servicing Agreement, unless such holder previously has given to the
Trustee for such  Series written  notice of default  and unless  the holders  of
Certificates  evidencing  not less  than 25%  of the  Voting Interests  for such
Series 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. (Section 10.03).
 
AMENDMENT
 
    Each Pooling  and Servicing  Agreement may  be amended  by the  Seller,  the
Servicer  and the Trustee without the  consent of the Certificateholders, (i) to
cure any ambiguity, (ii) to correct or supplement any provision therein that may
be inconsistent with any other provision therein, (iii) to modify, eliminate  or
add  to any of its  provisions to such extent as  shall be necessary to maintain
the qualification of the Trust Estate  (or a segregated pool of assets  therein)
as  a REMIC at  all times that any  Certificates are outstanding  or to avoid or
minimize the risk of the imposition of  any tax on the Trust Estate pursuant  to
the  Code that  would be  a claim  against the  Trust Estate,  provided that the
Trustee has received an  opinion of counsel  to the effect  that such action  is
necessary  or desirable to  maintain such qualification or  to avoid or minimize
the risk  of the  imposition  of any  such  tax and  such  action will  not,  as
evidenced  by such opinion of counsel,  adversely affect in any material respect
the interests of any Certificateholder, (iv) to change the timing and/or  nature
of deposits into the Certificate Account, provided that such change will not, as
evidenced by an opinion of counsel, adversely affect in any material respect the
interests  of  any Certificateholder  and that  such  change will  not adversely
affect the then current rating assigned  to any Certificates, as evidenced by  a
letter  from  each  Rating Agency  to  such effect,  (v)  to add  to,  modify or
eliminate any provisions therein restricting transfers of residual  Certificates
to  certain disqualified  organizations described  below under  "Certain Federal
Income   Tax   Consequences--Federal   Income   Tax   Consequences   for   REMIC
Certificates--Taxation  of  Residual  Certificates--Tax-Related  Restrictions on
Transfer of Residual Certificates,"  or (vi) to make  any other provisions  with
respect  to  matters  or  questions arising  under  such  Pooling  and Servicing
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 the  Certificateholders of  the related
Series. The Pooling and Servicing Agreement  may also be amended by the  Seller,
the  Servicer and the  Trustee with the  consent of the  holders of Certificates
evidencing interests aggregating not less than  66 2/3% of the Voting  Interests
evidenced  by the Certificates  of each Class or  Subclass affected thereby, for
 
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the purpose of adding any provisions to or changing in any manner or eliminating
any of the provisions of such Pooling and Servicing Agreement or of modifying in
any manner the rights of the Certificateholders; provided, however, that no such
amendment may (i) reduce in  any manner the amount of,  or delay the timing  of,
any  payments received on or with respect to Mortgage Loans that are required to
be distributed on any  Certificates, without the consent  of the holder of  such
Certificate,  (ii) adversely affect in any material respect the interests of the
holders of a Class  or Subclass of  Certificates of a Series  in a manner  other
than  that  set  forth  in (i)  above  without  the consent  of  the  holders of
Certificates aggregating not less than 66 2/3% of the Voting Interests evidenced
by such  Class  or  Subclass,  or  (iii)  reduce  the  aforesaid  percentage  of
Certificates  of any  Class or  Subclass, the holders  of which  are required to
consent  to  such  amendment,  without  the  consent  of  the  holders  of   all
Certificates   of   such   Class   or   Subclass   affected   then  outstanding.
Notwithstanding the  foregoing,  the  Trustee  will  not  consent  to  any  such
amendment if such amendment would subject the Trust Estate (or a segregated pool
of  assets therein)  to tax  or cause  the Trust  Estate (or  segregated pool of
assets therein) to fail to qualify as a REMIC.
 
TERMINATION; PURCHASE OF MORTGAGE LOANS
 
    The obligations created by the Pooling and Servicing Agreement for a  Series
of  Certificates will  terminate on  the Distribution  Date following  the final
payment or other liquidation of the  last Mortgage Loan subject thereto and  the
disposition of all property acquired upon foreclosure of any such Mortgage Loan.
In  no  event, however,  will the  trust  created by  the Pooling  and Servicing
Agreement continue beyond the expiration of 21 years from the death of the  last
survivor  of certain persons named in  such Pooling and Servicing Agreement. For
each Series of Certificates, the Trustee will give written notice of termination
of the Pooling and Servicing Agreement to each Certificateholder, and the  final
distribution   will  be  made  only  upon  surrender  and  cancellation  of  the
Certificates at an office or agency appointed by the Seller and specified in the
notice of termination.
 
    If so  provided  in  the  related Prospectus  Supplement,  the  Pooling  and
Servicing  Agreement  for  each  Series of  Certificates  will  permit,  but not
require, the  person  or persons  specified  in such  Prospectus  Supplement  to
purchase  from the Trust Estate for such  Series all remaining Mortgage Loans at
the time subject to the Pooling and Servicing Agreement at a price specified  in
such  Prospectus  Supplement. In  the  event that  the  Servicer has  caused the
related Trust Estate (or a segregated pool of assets therein) to be treated as a
REMIC, any  such  purchase  will  be effected  only  pursuant  to  a  "qualified
liquidation"  as defined  in Code Section  860F(a)(4)(A) and the  receipt by the
Trustee of an opinion of counsel that  such purchase will not (i) result in  the
imposition  of a tax on "prohibited transactions" under Code Section 860F(a)(1),
(ii) otherwise subject the REMIC to tax,  or (iii) cause the Trust Estate (or  a
segregated  pool of assets) to fail to qualify  as a REMIC. The exercise of such
right will effect early retirement of  the Certificates of that Series, but  the
right so to purchase may be exercised only after the aggregate principal balance
of  the Mortgage Loans  for such Series at  the time of purchase  is less than a
specified percentage of the aggregate principal balance at the Cut-Off Date  for
the Series, or after the date set forth in the related Prospectus Supplement.
 
THE TRUSTEE
 
    The  Trustee under each Pooling and Servicing Agreement (the "Trustee") will
be named in the applicable Prospectus  Supplement. The commercial bank or  trust
company serving as Trustee may have normal banking relationships with the Seller
or any of its affiliates.
 
    The  Trustee may  resign at any  time, in  which event the  Servicer will be
obligated to  appoint a  successor trustee.  The Servicer  may also  remove  the
Trustee if the Trustee ceases to be eligible to act as Trustee under the Pooling
and  Servicing Agreement, if the Trustee becomes insolvent or in order to change
the situs of the Trust Estate for state tax reasons. Upon becoming aware of such
circumstances, the  Servicer  will  become  obligated  to  appoint  a  successor
trustee.  The  Trustee  may  also be  removed  at  any time  by  the  holders of
Certificates evidencing not less than 51%  of the Voting Interests in the  Trust
Estate,  except that, any Certificate registered in  the name of the Seller, the
Servicer or any affiliate thereof will not be taken into account in  determining
whether  the requisite Voting  Interest in the Trust  Estate necessary to effect
any such
 
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removal has been obtained. Any resignation  and removal of the Trustee, and  the
appointment  of a successor trustee, will  not become effective until acceptance
of such appointment  by the successor  trustee. The Trustee,  and any  successor
trustee,  will have a combined  capital and surplus of  at least $50,000,000, or
will be a member of  a bank holding system,  the aggregate combined capital  and
surplus  of which is at  least $50,000,000, provided that  the Trustee's and any
such successor trustee's separate capital and  surplus shall at all times be  at
least  the amount specified in  Section 310(a)(2) of the  Trust Indenture Act of
1939, and will  be subject  to supervision or  examination by  federal or  state
authorities.
 
                  CERTAIN LEGAL ASPECTS OF THE MORTGAGE LOANS
 
    The  following  discussion contains  summaries of  certain legal  aspects of
mortgage loans  which are  general in  nature. Because  such legal  aspects  are
governed  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, nor 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 applicable federal and state laws governing the Mortgage Loans.
 
GENERAL
 
    The Mortgage Loans will, in general, be secured by either first mortgages or
first deeds of  trust, depending upon  the prevailing practice  in the state  in
which  the underlying property  is located. A  mortgage creates a  lien upon the
real property described in  the mortgage. There are  two parties to a  mortgage:
the  mortgagor, who is the borrower; and the  mortgagee, who is the lender. In a
mortgage state instrument,  the mortgagor delivers  to the mortgagee  a note  or
bond  evidencing the loan and the mortgage.  Although a deed of trust is similar
to a mortgage, a deed of trust has three parties: a borrower called the  trustor
(similar  to  a  mortgagor),  a  lender called  the  beneficiary  (similar  to a
mortgagee), 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 loan.
The trustee's authority  under a  deed of  trust and  the mortgagee's  authority
under  a mortgage are governed by the express provisions of the deed of trust or
mortgage, applicable law, and, in some cases, with respect to the deed of trust,
the directions of the beneficiary.
 
FORECLOSURE
 
    Foreclosure of  a mortgage  is generally  accomplished by  judicial  action.
Generally,  the action is initiated  by the service of  legal pleadings upon all
parties having an interest of record in the real property. Delays in  completion
of  the  foreclosure  occasionally  may  result  from  difficulties  in locating
necessary parties  defendant.  When  the mortgagee's  right  of  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  may  issue a  judgment of  foreclosure  and appoint  a receiver  or other
officer to conduct the sale of the property. In some states, mortgages may  also
be  foreclosed by  advertisement, pursuant  to a power  of sale  provided in the
mortgage. Foreclosure of a mortgage  by advertisement is essentially similar  to
foreclosure of a deed of trust by non-judicial power of sale.
 
    Foreclosure  of a deed of trust  is generally accomplished by a non-judicial
trustee's sale under a specific provision  in the deed of trust that  authorizes
the  trustee to  sell the  property to  a third  party 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, 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 a 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
 
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notice  of sale must be posted in a  public place and, in most states, published
for a specified  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 of record in the property.
 
    In some states, 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 attorneys' fees, which may be recovered by a lender.
 
    In case of foreclosure under either a mortgage or a deed of trust, the  sale
by  the receiver  or other designated  officer, or  by the trustee,  is a public
sale. However, because  of the difficulty  a potential buyer  at the sale  would
have in determining the exact status of title and because the physical condition
of  the property may have deteriorated during the foreclosure proceedings, it is
uncommon for a  third party to  purchase the property  at the foreclosure  sale.
Rather, it is common for the lender to purchase the property from the trustee or
receiver for an amount equal to the unpaid principal amount of the note, accrued
and  unpaid interest and the expenses of foreclosure. Thereafter, subject to the
right of  the  borrower  in some  states  to  remain in  possession  during  the
redemption  period, the lender  will assume the  burdens 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 commonly will
obtain the services of a real estate  broker and pay the broker a 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. Any loss may  be reduced by the receipt of mortgage
insurance proceeds, if any, or by  judicial action against the borrower for  the
deficiency,   if  such  action  is  permitted  by  law.  See  "--Anti-Deficiency
Legislation and Other Limitations on Lenders" below.
 
FORECLOSURE ON SHARES OF COOPERATIVES
 
    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 By-laws, as well  as
in  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 an opportunity to cure the default.
The  recognition agreement typically  provides that if  the proprietary lease or
occupancy agreement is terminated, the  cooperative will recognize the  lender's
lien  against  proceeds  from  a 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.
 
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<PAGE>
    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  by the  agreement  in any  rights it  may  have to  dispossess the
tenant-stockholders.
 
    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 corporation 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.
 
RIGHTS OF REDEMPTION
 
    In some states, after sale pursuant to a deed of trust and/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
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 delay  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 maintain  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, 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  former
borrower  equal in most  cases to the  difference between the  amount due to the
lender and the net amount realized upon the foreclosure sale.
 
    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,  when applicable, is that lenders
will usually proceed first against the security rather than bringing a  personal
action against the borrower.
 
    Other  statutory provisions  may limit  any deficiency  judgment against the
former borrower following a  foreclosure sale to the  excess of the  outstanding
debt  over the fair market value  of the property at the  time of such sale. The
purpose of  these statutes  is to  prevent  a beneficiary  or a  mortgagee  from
obtaining a large deficiency judgment against the former borrower as a result of
low or no bids at the foreclosure sale.
 
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<PAGE>
    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.
 
    Generally, Article 9 of  the UCC governs  foreclosure on cooperative  shares
and  the related proprietary lease or occupancy agreement and foreclosure on the
beneficial interest in a land trust. 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  Mortgage Loan secured  by
shares  of a cooperative, would be such shares and the related proprietary lease
or occupancy agreement) was conducted in a commercially reasonable manner.
 
    The Servicer is not  required under the Pooling  and Servicing Agreement  to
pursue deficiency judgments on the Mortgage Loans even if permitted by law.
 
    In  addition  to  anti-deficiency and  related  legislation,  numerous other
federal and state  statutory provisions, including  the federal bankruptcy  laws
and  state laws affording  relief to debtors,  may interfere with  or affect the
ability of a secured mortgage lender to realize upon its security. For  example,
in  a Chapter  13 proceeding  under the  federal Bankruptcy  Code, when  a court
determines that the value of  a home is less than  the principal balance of  the
loan,  the court may prevent a lender from foreclosing on the home, and, as part
of the rehabilitation plan, reduce the amount of the secured indebtedness to the
value of the home as it exists at the time of the proceeding, leaving the lender
as a general unsecured  creditor for the difference  between that value and  the
amount  of outstanding indebtedness.  A bankruptcy court may  grant the debtor a
reasonable time to cure a  payment default, and in the  case of a mortgage  loan
not  secured by  the debtor's principal  residence, also may  reduce the monthly
payments due under such mortgage loan,  change the rate of interest, reduce  the
principal balance of the loan to the then-current appraised value of the related
Mortgaged Property and alter the mortgage loan repayment schedule. Certain court
decisions  have applied such relief to  claims secured by the debtor's principal
residence. If  a  court  relieves  a  borrower's  obligation  to  repay  amounts
otherwise  due on a Mortgage Loan, the  Servicer will not be required to advance
such  amounts,  and  any  loss  in   respect  thereof  will  be  borne  by   the
Certificateholders.
 
    The  Internal Revenue Code of 1986, as amended, provides priority to certain
tax liens over  the lien  of the mortgage  or deed  of trust. The  laws of  some
states  provide priority to certain  tax liens over the  lien of the mortgage or
deed of trust. Numerous federal and  some 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 laws  and state  laws  impose
specific  statutory liabilities upon  lenders who originate  or service mortgage
loans and who fail to comply with the provisions of the law. In some cases, this
liability may affect assignees of the mortgage loans.
 
SOLDIERS' AND SAILORS' CIVIL RELIEF ACT AND SIMILAR LAWS
 
    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  action  could  have  an  effect,  for  an
indeterminate  period of time,  on the ability  of the Servicer  to collect full
amounts of interest  on certain of  the Mortgage  Loans in a  Trust Estate.  Any
shortfall  in interest collections resulting from  the application of the Relief
Act could result in  losses to the  holders of the  Certificates of the  related
Series.  Further,  the Relief  Act imposes  limitations  which would  impair the
ability of the  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
 
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<PAGE>
timely fashion. Certain  states have  enacted comparable  legislation which  may
interfere  with or affect the ability of the Servicer to timely collect payments
of principal and interest on, or to foreclose on, Mortgage Loans of borrowers in
such states who are active or reserve members of the armed services.
 
ENVIRONMENTAL CONSIDERATIONS
 
    Under the  federal  Comprehensive Environmental  Response  Compensation  and
Liability  Act, as  amended, and  under state law  in certain  states, a secured
party which takes a deed in lieu of foreclosure, purchases a mortgaged  property
at  a foreclosure  sale or  operates a mortgaged  property may  become liable in
certain circumstances  for the  costs of  remedial action  ("Cleanup Costs")  if
hazardous  wastes or hazardous  substances have been released  or disposed of on
the property. Such Cleanup  Costs may be substantial.  It is possible that  such
Cleanup  Costs  could become  a liability  of  the Trust  Estate and  reduce the
amounts  otherwise  distributable  to  the  Certificateholders  if  a  Mortgaged
Property  securing a Mortgage  Loan became the  property of the  Trust Estate in
certain circumstances and if such Cleanup Costs were incurred. Moreover, certain
states by statute impose a lien for any Cleanup Costs incurred by such state  on
the  property that  is the  subject of such  Cleanup Costs  (a "Superlien"). All
subsequent liens on  such property are  subordinated to such  Superlien and,  in
some  states, even prior recorded liens  are subordinated to such Superliens. In
the latter states, the security  interest of the Trustee  in a property that  is
subject to such a Superlien could be adversely affected.
 
    Traditionally, residential mortgage lenders have not taken steps to evaluate
whether hazardous wastes or hazardous substances are present with respect to any
mortgaged  property prior to  the origination of  the mortgage loan  or prior to
foreclosure or accepting a deed-in-lieu of foreclosure. Accordingly, neither the
Seller nor  PHMC has  made such  evaluations  prior to  the origination  of  the
Mortgage  Loans,  nor  does either  require  that  such evaluations  be  made by
originators who have  sold the Mortgage  Loans to PHMC.  Neither the Seller  nor
PHMC  is  required to  undertake any  such evaluations  prior to  foreclosure or
accepting a deed-in-lieu of  foreclosure. Neither the  Seller, the Servicer  nor
PHMC  makes  any representations  or warranties  or  assumes any  liability with
respect to the absence or effect of hazardous wastes or hazardous substances  on
any  Mortgaged Property or any casualty resulting from the presence or effect of
hazardous wastes  or  hazardous  substances. See  "The  Trust  Estates--Mortgage
Loans--Representations   and   Warranties"  and   "Servicing  of   the  Mortgage
Loans--Enforcement of Due-on-Sale Clauses;  Realization Upon Defaulted  Mortgage
Loans" above.
 
"DUE-ON-SALE" CLAUSES
 
    The  forms  of note,  mortgage and  deed of  trust relating  to conventional
Mortgage Loans may contain a "due-on-sale" clause permitting acceleration of the
maturity of a loan if  the borrower transfers its  interest in the property.  In
recent  years,  court  decisions  and  legislative  actions  placed  substantial
restrictions on the  right of lenders  to enforce such  clauses in many  states.
However,  effective  October  15,  1982, Congress  enacted  the  Garn-St Germain
Depository Institutions Act of 1982 (the  "Garn Act") which purports to  preempt
state  laws which prohibit the enforcement of "due-on-sale" clauses by providing
among other matters, that  "due-on-sale" clauses in  certain loans (which  loans
may  include the Mortgage Loans)  made after the effective  date of the Garn Act
are enforceable, within certain limitations as set forth in the Garn Act and the
regulations promulgated thereunder. "Due-on-sale" clauses contained in  mortgage
loans  originated by  federal savings and  loan associations  or federal savings
banks are fully  enforceable pursuant  to regulations  of the  Office of  Thrift
Supervision ("OTS"), as successor to the Federal Home Loan Bank Board ("FHLBB"),
which  preempt  state  law  restrictions on  the  enforcement  of  such clauses.
Similarly, "due-on-sale" clauses in  mortgage loans made  by national banks  and
federal   credit  unions  are  now  fully  enforceable  pursuant  to  preemptive
regulations of the  Comptroller of the  Currency and the  National Credit  Union
Administration, respectively.
 
    The  Garn  Act  created  a  limited  exemption  from  its  general  rule  of
enforceability for  "due-on-sale" clauses  in  certain mortgage  loans  ("Window
Period  Loans") which were originated by non-federal lenders and made or assumed
in certain states ("Window Period States")  during the period, prior to  October
15,
 
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<PAGE>
1982, in which that state prohibited the enforcement of "due-on-sale" clauses by
constitutional  provision,  statute  or statewide  court  decision  (the "Window
Period"). Though neither the Garn Act nor the OTS regulations actually names the
Window Period States, the Federal Home  Loan Mortgage Corporation has taken  the
position,  in  prescribing mortgage  loan  servicing standards  with  respect to
mortgage loans  which it  has purchased,  that the  Window Period  States  were:
Arizona, Arkansas, California, Colorado, Georgia, Iowa, Michigan, Minnesota, New
Mexico,  Utah and Washington. Under  the Garn Act, unless  a Window Period State
took action  by October  15, 1985,  the end  of the  Window Period,  to  further
regulate   enforcement  of   "due-on-sale"  clauses  in   Window  Period  Loans,
"due-on-sale" clauses would become enforceable even in Window Period Loans. Five
of the Window Period States (Arizona, Minnesota, Michigan, New Mexico and  Utah)
have taken actions which restrict the enforceability of "due-on-sale" clauses in
Window  Period Loans beyond October 15, 1985.  The actions taken vary among such
states.
 
    By virtue  of the  Garn Act,  the  Servicer may  generally be  permitted  to
accelerate  any conventional Mortgage Loan which contains a "due-on-sale" clause
upon transfer of an interest in the property subject to the mortgage or deed  of
trust.  With respect to any Mortgage Loan  secured by a residence occupied or to
be occupied  by the  borrower, this  ability  to accelerate  will not  apply  to
certain  types of transfers, including (i)  the granting of a leasehold interest
which has a term of three years or less and which does not contain an option  to
purchase,  (ii) a transfer to a relative resulting from the death of a borrower,
or a transfer where the  spouse or children become an  owner of the property  in
each  case where  the transferee(s) will  occupy the property,  (iii) a transfer
resulting from a decree of  dissolution of marriage, legal separation  agreement
or  from an incidental property settlement agreement by which the spouse becomes
an owner of  the property,  (iv) the  creation of  a lien  or other  encumbrance
subordinate  to  the lender's  security instrument  which does  not relate  to a
transfer of rights  of occupancy  in the property  (provided that  such lien  or
encumbrance  is not created pursuant to a  contract for deed), (v) a transfer by
devise, descent or operation of law on the death of a joint tenant or tenant  by
the  entirety, and  (vi) other transfers  as set forth  in the Garn  Act and the
regulations thereunder. The extent of the effect of the Garn Act on the  average
lives  and  delinquency rates  of the  Mortgage Loans  cannot be  predicted. See
"Prepayment and Yield Considerations."
 
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 OTS as successor to the
FHLBB  is   authorized  to   issue  rules   and  regulations   and  to   publish
interpretations  governing implementation of Title V. The statute authorized any
state to reimpose interest rate limits by  adopting before April 1, 1983, a  law
or  constitutional provision which expressly  rejects application of the federal
law. Fifteen  states have  adopted laws  reimposing or  reserving the  right  to
reimpose  interest  rate limits.  In  addition, even  where  Title V  is  not so
rejected, any state is  authorized to adopt a  provision limiting certain  other
loan charges.
 
    The Seller will represent and warrant in the Pooling and Servicing Agreement
to the Trustee for the benefit of Certificateholders that all Mortgage Loans are
originated  in full compliance with applicable state laws, including usury laws.
See "The Pooling and  Servicing Agreement--Assignment of  Mortgage Loans to  the
Trustee."
 
ENFORCEABILITY OF CERTAIN PROVISIONS
 
    Standard  forms  of  note,  mortgage and  deed  of  trust  generally contain
provisions obligating the  borrower to  pay a late  charge if  payments are  not
timely  made  and  in some  circumstances  may  provide for  prepayment  fees or
penalties if the obligation is paid prior to maturity. In certain states,  there
are  or may be specific limitations upon late charges which a lender may collect
from a borrower for delinquent payments.  Certain states also limit the  amounts
that a lender may collect from a borrower as an additional charge if the loan is
prepaid.  Under the Pooling and Servicing Agreement, late charges and prepayment
fees (to the extent  permitted by law  and not waived by  the Servicer) will  be
retained by the Servicer as additional servicing compensation.
 
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<PAGE>
    Courts  have imposed  general equitable  principles upon  foreclosure. These
equitable principles are  generally designed  to relieve the  borrower from  the
legal effect of defaults under the loan documents. Examples of judicial remedies
that  may be fashioned  include judicial requirements  that the lender undertake
affirmative and expensive  actions to  determine the causes  for the  borrower's
default and the likelihood that the borrower will be able to reinstate the loan.
In  some cases, courts have substituted their judgment for the lender's judgment
and have required  lenders to  reinstate loans  or recast  payment schedules  to
accommodate  borrowers who are suffering from temporary financial disability. In
some cases, courts have limited the right of lenders to foreclose if the default
under the mortgage instrument is not  monetary, such as the borrower failing  to
adequately  maintain the property or the borrower executing a second mortgage or
deed of trust  affecting the  property. In other  cases, some  courts have  been
faced  with  the  issue  whether  federal  or  state  constitutional  provisions
reflecting due process concerns for adequate notice require that borrowers under
the deeds of  trust receive  notices in addition  to the  statutorily-prescribed
minimum  requirements. 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  or under  a mortgage  having a  power of  sale does  not involve
sufficient state action to afford constitutional protections to the borrower.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    The following is a  general discussion of  the anticipated material  federal
income   tax  consequences  of  the  purchase,  ownership,  and  disposition  of
Certificates, which may consist of REMIC Certificates, Standard Certificates  or
Stripped Certificates, as described below. The discussion below does not purport
to  address  all  federal income  tax  consequences  that may  be  applicable to
particular categories of  investors, some  of which  may be  subject to  special
rules.  The authorities on which this discussion  is based are subject to change
or differing interpretations, and any such change or interpretation could  apply
retroactively.  This discussion reflects the enactment  of the Tax Reform Act of
1986 (the "1986 Act")  and the Technical and  Miscellaneous Revenue Act of  1988
("TAMRA"),  as well as regulations (the  "REMIC Regulations") promulgated by the
U.S. Department of the  Treasury on December 23,  1992, and generally  effective
for  REMICs with startup  days on or  after November 12,  1991. Investors should
consult their own tax advisors in determining the federal, state, local, and any
other tax consequences to  them of the purchase,  ownership, and disposition  of
Certificates,  particularly with respect to  federal income tax changes effected
by the 1986 Act, TAMRA and the REMIC Regulations.
 
    For purposes of this discussion, where the applicable Prospectus  Supplement
provides  for a  Fixed Retained Yield  with respect  to the Mortgage  Loans of a
Series of Certificates, references to the Mortgage Loans will be deemed to refer
to that portion of the  Mortgage Loans held by the  Trust Estate which does  not
include the Fixed Retained Yield.
 
             FEDERAL INCOME TAX CONSEQUENCES FOR REMIC CERTIFICATES
 
GENERAL
 
    With respect to a particular Series of Certificates, an election may be made
to  treat the Trust Estate or one or  more segregated pools of assets therein as
one or more REMICs within the meaning of Code Section 860D. A Trust Estate or  a
portion or portions thereof as to which one or more REMIC elections will be made
will  be  referred  to as  a  "REMIC  Pool." For  purposes  of  this discussion,
Certificates of a Series as to which one or more REMIC elections are made, which
will include all Multi-Class Certificates and may include Standard  Certificates
or  Stripped Certificates or  both, are referred to  as "REMIC Certificates" and
will consist of one or more Classes  of "Regular Certificates" and one Class  of
"Residual Certificates" in the case of each REMIC Pool. Qualification as a REMIC
requires ongoing compliance with certain conditions. With respect to each Series
of REMIC Certificates, Cadwalader, Wickersham & Taft, counsel to the Seller, has
advised  the Seller that  in the firm's  opinion, assuming (i)  the making of an
appropriate election, (ii) compliance with the Pooling and Servicing  Agreement,
and  (iii) compliance with any  changes in the law,  including any amendments to
the Code or  applicable Treasury  regulations thereunder, each  REMIC Pool  will
 
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<PAGE>
qualify as a REMIC. In such case, the Regular Certificates will be considered to
be  "regular interests"  in the  REMIC Pool  and generally  will be  treated for
federal income tax purposes as if  they were newly originated debt  instruments,
and  the Residual Certificates will be  considered to be "residual interests" in
the REMIC Pool. The Prospectus Supplement  for each Series of Certificates  will
indicate  whether one or more REMIC elections  with respect to the related Trust
Estate will be made, in which event references to "REMIC" or "REMIC Pool" herein
shall be deemed to refer to each such REMIC Pool.
 
STATUS OF REMIC CERTIFICATES
 
    REMIC Certificates held by a mutual savings bank or a domestic building  and
loan  association will  constitute "qualifying  real property  loans" within the
meaning of Code Section 593(d)(1) in the same proportion that the assets of  the
REMIC  Pool would be so treated. REMIC  Certificates held by a domestic building
and loan association will constitute "a regular or residual interest in a REMIC"
within the meaning  of Code  Section 7701(a)(19)(C)(xi) in  the same  proportion
that  the assets of  the REMIC Pool  would be treated  as "loans...secured by an
interest in real property" within the meaning of Code Section  7701(a)(19)(C)(v)
or  as other assets described in Code Section 7701(a)(19)(C). REMIC Certificates
held by a  real estate  investment trust  will constitute  "real estate  assets"
within  the  meaning of  Code Section  856(c)(5)(A), and  interest on  the REMIC
Certificates will be considered "interest on obligations secured by mortgages on
real property  or on  interests in  real property"  within the  meaning of  Code
Section  856(c)(3)(B) in the same proportion that, for both purposes, the assets
of the REMIC Pool would be so treated. If at all times 95% or more of the assets
of the  REMIC Pool  qualify for  each  of the  foregoing treatments,  the  REMIC
Certificates  will qualify for  the corresponding status  in their entirety. For
purposes of Code Sections 593(d)(1) and 856(c)(5)(A), payments of principal  and
interest  on  the Mortgage  Loans that  are  reinvested pending  distribution to
holders of REMIC Certificates qualify for such treatment. Where two REMIC  Pools
are  a part of a tiered structure they will be treated as one REMIC for purposes
of the tests  described above respecting  asset ownership of  more or less  than
95%.  In addition,  if the  assets of  the REMIC  include Buy-Down  Loans, it is
possible that  the  percentage  of such  assets  constituting  "qualifying  real
property  loans"  or  "loans...secured  by an  interest  in  real  property" for
purposes of Code Sections 593(d)(1) and 7701(a)(19)(C)(v), respectively, may  be
required  to  be reduced  by the  amount  of the  related Buy-Down  Funds. REMIC
Certificates  held  by  a  regulated  investment  company  will  not  constitute
"Government  securities"  within the  meaning  of Code  Section 851(b)(4)(A)(i).
REMIC Certificates held  by certain  financial institutions  will constitute  an
"evidence of indebtedness" within the meaning of Code Section 582(c)(1).
 
QUALIFICATION AS A REMIC
 
    In  order for the  REMIC Pool to qualify  as a REMIC,  there must be ongoing
compliance on the part of the REMIC Pool with the requirements set forth in  the
Code.  The REMIC Pool  must fulfill an  asset test, which  requires that no more
than a DE MINIMIS portion of  the assets of the REMIC  Pool, as of the close  of
the  third calendar month beginning after  the "Startup Day" (which for purposes
of this discussion is the date of issuance of the REMIC Certificates) and at all
times thereafter, may  consist of  assets other than  "qualified mortgages"  and
"permitted investments." The REMIC Regulations provide a safe harbor pursuant to
which  the DE  MINIMIS requirement  will be  met if  at all  times the aggregate
adjusted basis  of the  nonqualified assets  is less  than 1%  of the  aggregate
adjusted  basis of all the REMIC Pool's assets. An entity that fails to meet the
safe harbor may nevertheless demonstrate that it holds no more than a DE MINIMIS
amount of  nonqualified  assets. A  REMIC  Pool also  must  provide  "reasonable
arrangements" to prevent its residual interests from being held by "disqualified
organizations"  or agents thereof and must furnish applicable tax information to
transferors or agents that violate  this requirement. See "Taxation of  Residual
Certificates--Tax-Related Restrictions on Transfer of Residual
Certificates--Disqualified Organizations."
 
    A  qualified mortgage  is any obligation  that is principally  secured by an
interest in real property and  that is either transferred  to the REMIC Pool  on
the  Startup Day or is  purchased by the REMIC  Pool within a three-month period
thereafter pursuant to  a fixed  price contract in  effect on  the Startup  Day.
Qualified  mortgages include whole  mortgage loans, such  as the Mortgage Loans,
and, generally,  certificates of  beneficial interest  in a  grantor trust  that
holds  mortgage  loans  and  regular  interests  in  another  REMIC.  The  REMIC
Regulations
 
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<PAGE>
specify that loans secured  by timeshare interests and  shares held by a  tenant
stockholder  in a cooperative housing corporation  can be qualified mortgages. A
qualified mortgage  includes  a qualified  replacement  mortgage, which  is  any
property  that  would have  been  treated as  a  qualified mortgage  if  it were
transferred to the REMIC Pool on the Startup Day and that is received either (i)
in exchange for any qualified mortgage within a three-month period thereafter or
(ii)  in  exchange  for  a  "defective  obligation"  within  a  two-year  period
thereafter. A "defective obligation" includes (i) a mortgage in default or as to
which default is reasonably foreseeable, (ii) a mortgage as to which a customary
representation  or warranty made at  the time of transfer  to the REMIC Pool has
been breached, (iii) a mortgage that was fraudulently procured by the mortgagor,
and (iv) a mortgage that  was not in fact  principally secured by real  property
(but  only  if such  mortgage is  disposed of  within 90  days of  discovery). A
Mortgage Loan that is "defective" as described  in clause (iv) that is not  sold
or,  if  within two  years  of the  Startup Day,  exchanged,  within 90  days of
discovery, ceases to be a qualified mortgage after such 90-day period.
 
    Permitted investments  include  cash  flow  investments,  qualified  reserve
assets,  and  foreclosure property.  A cash  flow  investment is  an investment,
earning a return  in the  nature of  interest, of  amounts received  on or  with
respect  to qualified mortgages for a temporary period, not exceeding 13 months,
until the next scheduled distribution to holders of interests in the REMIC Pool.
A qualified reserve asset is any intangible property held for investment that is
part of any reasonably required reserve maintained by the REMIC Pool to  provide
for  payments of  expenses of the  REMIC Pool or  amounts due on  the regular or
residual interests in  the event  of defaults (including  delinquencies) on  the
qualified  mortgages,  lower  than  expected  reinvestment  returns,  prepayment
interest shortfalls and certain  other contingencies. The  reserve fund will  be
disqualified  if more than 30% of the gross  income from the assets in such fund
for the year is derived from the sale or other disposition of property held  for
less  than three  months, unless  required to prevent  a default  on the regular
interests caused by a default on one or more qualified mortgages. A reserve fund
must be reduced "promptly and appropriately"  as payments on the Mortgage  Loans
are  received. Foreclosure property is real  property acquired by the REMIC Pool
in connection with the default or  imminent default of a qualified mortgage  and
generally  held for  not more  than two  years, with  extensions granted  by the
Internal Revenue Service.
 
    In addition to the foregoing requirements, the various interests in a  REMIC
Pool  also must meet certain requirements. All  of the interests in a REMIC Pool
must be either of the following: (i) one or more classes of regular interests or
(ii) a single class  of residual interests on  which distributions, if any,  are
made  pro rata. A regular interest is an interest in a REMIC Pool that is issued
on the Startup Day with  fixed terms, is designated  as a regular interest,  and
unconditionally  entitles the holder to receive a specified principal amount (or
other similar amount),  and provides  that interest payments  (or other  similar
amounts), if any, at or before maturity either are payable based on a fixed rate
or  a qualified variable rate, or consist  of a specified, nonvarying portion of
the interest  payments on  qualified  mortgages. Such  a specified  portion  may
consist  of a  fixed number  of basis  points, a  fixed percentage  of the total
interest, or a qualified variable or inverse variable rate on some or all of the
qualified mortgages. The specified principal  amount of a regular interest  that
provides  for interest payments consisting of a specified, nonvarying portion of
interest payments on qualified mortgages may be zero. A residual interest is  an
interest  in a REMIC  Pool other than a  regular interest that  is issued on the
Startup Day and  that is designated  as a  residual interest. An  interest in  a
REMIC  Pool may be treated  as a regular interest  even if payments of principal
with respect to  such interest  are subordinated  to payments  on other  regular
interests  or the residual interest in the  REMIC Pool, and are dependent on the
absence of  defaults  or  delinquencies  on  qualified  mortgages  or  permitted
investments,  lower than  reasonably expected returns  on permitted investments,
expenses  incurred  by  the  REMIC  Pool  or  prepayment  interest   shortfalls.
Accordingly,  the Regular Certificates  of a Series will  constitute one or more
classes of regular interests, and the Residual Certificates with respect to that
Series  will  constitute  a  single   class  of  residual  interests  on   which
distributions are made pro rata.
 
    If  an entity, such as the  REMIC Pool, fails to comply  with one or more of
the ongoing requirements of the Code  for REMIC status during any taxable  year,
the   Code   provides   that   the   entity   will   not   be   treated   as   a
 
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REMIC for  such year  and thereafter.  In this  event, an  entity with  multiple
classes  of ownership interests may be treated as a separate association taxable
as a corporation under Treasury regulations, and the Regular Certificates may be
treated as equity interests therein. The Code, however, authorizes the  Treasury
Department  to issue regulations  that address situations  where failure to meet
one or more  of the requirements  for REMIC status  occurs inadvertently and  in
good faith, and disqualification of the REMIC Pool would occur absent regulatory
relief. Investors should be aware, however, that the Conference Committee Report
to  the 1986 Act indicates that the relief may be accompanied by sanctions, such
as the imposition of  a corporate tax on  all or a portion  of the REMIC  Pool's
income for the period of time in which the requirements for REMIC status are not
satisfied.
 
TAXATION OF REGULAR CERTIFICATES
 
  GENERAL
    In  general, interest,  original issue  discount, and  market discount  on a
Regular Certificate  will be  treated as  ordinary  income to  a holder  of  the
Regular Certificate (the "Regular Certificateholder"), and principal payments on
a  Regular Certificate will be  treated as a return of  capital to the extent of
the Regular  Certificateholder's  basis  in the  Regular  Certificate  allocable
thereto.  Regular Certificateholders must  use the accrual  method of accounting
with regard  to Regular  Certificates, regardless  of the  method of  accounting
otherwise used by such Regular Certificateholders.
 
  ORIGINAL ISSUE DISCOUNT
    Compound  Interest  Certificates  will  be,  and  other  classes  of Regular
Certificates may be, issued with "original issue discount" within the meaning of
Code Section 1273(a). Holders of any  Class or Subclass of Regular  Certificates
having original issue discount generally must include original issue discount in
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
following discussion is based in part on proposed Treasury regulations issued on
December 21, 1992 under Code Sections 1271 through 1273 and 1275 (the  "Proposed
OID  Regulations")  and in  part  on the  provisions  of the  1986  Act. Regular
Certificateholders should be aware, however,  that the Proposed OID  Regulations
do not adequately address certain issues relevant to prepayable securities, such
as  the Regular  Certificates, and  are subject  to change  and are  not binding
authority before being adopted as  final or temporary regulations. The  Proposed
OID  Regulations are proposed to be effective  for debt instruments issued 60 or
more days after the date the  Proposed OID Regulations are finalized, and  prior
proposed regulations have been withdrawn.
 
    Under  the Proposed OID Regulations, each Regular Certificate (except to the
extent described below with respect to a Regular Certificate on which  principal
is distributed in a single installment or by lots of specified principal amounts
upon  the  request of  a Certificateholder  or  by random  lot (a  "Retail Class
Certificate")) will be treated as  a single installment obligation for  purposes
of   determining   the  original   issue  discount   includible  in   a  Regular
Certificateholder's income. The  total amount  of original issue  discount on  a
Regular  Certificate is the excess of  the "stated redemption price at maturity"
of the Regular Certificate over its "issue price." The issue price of a  Regular
Certificate  offered  pursuant  to  this  Prospectus is  the  price  at  which a
substantial amount of such Class is first sold to the public. The issue price of
a Regular  Certificate also  includes  the amount  paid  by an  initial  Regular
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 always includes  the original principal amount (in the
case of Standard or Stripped Certificates) or initial Stated Amount (in the case
of Multi-Class Certificates) of the Regular Certificate, but generally will  not
include  distributions of  interest if such  distributions constitute "qualified
stated interest." Under the Proposed OID Regulations, qualified stated  interest
generally  means interest payable at a single fixed rate or a 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. Distributions  of interest on  a Compound  Interest
Certificate,  or on  other Regular Certificates  with respect  to which deferred
 
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interest will accrue, will not constitute qualified stated interest payments, in
which case 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 either  longer or shorter  than the  interval between subsequent
Distribution Dates, all or  part of the  interest foregone, in  the case of  the
longer  interval, and all of the additional interest, in the case of the shorter
interval, will be included in the stated redemption price at maturity and tested
under the DE MINIMIS rule described below. The Proposed OID Regulations  suggest
that all interest on a long first period Regular Certificate that is issued with
non-DE  MINIMIS OID will  be treated as OID,  but the Seller  does not intend to
follow  this  approach  unless  and  until  required  to  do  so  by  final  OID
regulations. Regular Certificateholders should consult their own tax advisors to
determine  the issue price and stated redemption  price at maturity of a Regular
Certificate.
 
    Under a DE MINIMIS  rule, original issue discount  on a Regular  Certificate
will be considered to be zero if such original issue discount 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  assumed  rate  of
prepayment  of the Mortgage Loans and the anticipated reinvestment rate, if any,
relating  to  the  Regular  Certificates  (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. Under  the
Proposed  OID Regulations, however,  accrual method holders  may elect to accrue
all DE  MINIMIS OID  as  well as  market discount  and  market premium  under  a
constant  interest  method.  Holders  should  consult  their  own  tax  advisors
regarding the method of  making such an  election and the  effect on other  debt
instruments acquired by such holder at a market discount or market premium.
 
    A  Regular Certificateholder generally must include  in gross income for any
taxable year the sum of the "daily portions," as defined below, of the  original
issue  discount on the Regular Certificate  accrued during an accrual period for
each day  on which  it holds  the  Regular Certificate,  including the  date  of
purchase  but  excluding the  date  of disposition.  The  Seller will  treat the
monthly period ending  on each  Distribution Date  as the  accrual period.  With
respect  to each Regular Certificate, a calculation will be made of the original
issue discount  that accrues  during  each successive  full accrual  period  (or
shorter  period  from the  date  of original  issue)  that ends  on  the related
Distribution Date on the Regular Certificate. The Conference Committee Report to
the 1986 Act  states that  the rate  of accrual  of original  issue discount  is
intended to be based on the Prepayment Assumption. Other than as discussed below
with respect to a Retail Class Certificate, the original issue discount accruing
in  a full accrual period would be the excess, if any, of (i) the sum of (a) the
present value of all of  the remaining distributions to  be made on the  Regular
Certificate as of the end of that accrual period, and (b) the distributions made
on  the Regular Certificate during  the accrual period that  are included in the
Regular Certificate's  stated  redemption  price  at  maturity,  over  (ii)  the
adjusted  issue price of the Regular Certificate at the beginning of the accrual
period. The present  value of  the remaining  distributions referred  to in  the
preceding  sentence is  calculated based  on (i)  the yield  to maturity  of the
Regular  Certificate  at   the  issue  date,   (ii)  events  (including   actual
prepayments)  that have  occurred prior  to the end  of the  accrual period, and
(iii) the Prepayment Assumption. For these purposes, the adjusted issue price of
a Regular Certificate at  the beginning of any  accrual period equals the  issue
price  of the Regular Certificate, increased by the aggregate amount of original
issue discount with respect to the Regular Certificate that accrued in all prior
accrual periods  and reduced  by the  amount of  distributions included  in  the
Regular  Certificate's stated redemption price at maturity that were made on the
Regular Certificate in such prior
 
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periods. The  original issue  discount accruing  during any  accrual period  (as
determined  in this paragraph) will then be divided by the number of days in the
period to determine the daily portion of original issue discount for each day in
the period.  With respect  to an  initial  accrual period  shorter than  a  full
accrual period, the daily portions of original issue discount must be determined
according to an appropriate allocation under any reasonable method.
 
    Under  the  method described  above, the  daily  portions of  original issue
discount required  to  be included  in  income by  a  Regular  Certificateholder
generally  will  increase  to  take  into  account  prepayments  on  the Regular
Certificates as a result  of prepayments on the  Mortgage Loans that exceed  the
Prepayment  Assumption, and generally will decrease  (but not below zero for any
period) if the  prepayments are slower  than the Prepayment  Assumption. To  the
extent  specified  in  the  applicable  Prospectus  Supplement,  an  increase in
prepayments  on  the  Mortgage  Loans  with  respect  to  a  Series  of  Regular
Certificates  can result in both a change  in the priority of principal payments
with respect to certain Classes of  Regular Certificates and either an  increase
or  decrease in the  daily portions of  original issue discount  with respect to
such Regular Certificates.
 
    In the case of a Retail Class Certificate, although not entirely clear,  the
yield  to  maturity of  such  Certificate should  be  determined based  upon the
anticipated payment characteristics of the Class as a whole under the Prepayment
Assumption. In  general, the  original issue  discount accruing  on each  Retail
Class  Certificate in a full accrual period  would be its allocable share of the
original issue  discount with  respect to  the entire  Class, as  determined  in
accordance  with the preceding paragraph. However, in the case of a distribution
in retirement  of  the entire  unpaid  principal  balance of  any  Retail  Class
Certificate  (or portion  of such unpaid  principal balance),  (a) the remaining
unaccrued original  issue discount  allocable to  such Certificate  (or to  such
portion)  will accrue at the  time of such distribution,  and (b) the accrual of
original issue discount allocable  to each remaining  Certificate of such  Class
(or  the remaining unpaid principal balance of a partially redeemed Retail Class
Certificate after  a  distribution  of  principal has  been  received)  will  be
adjusted  by reducing the present value of  the remaining payments on such Class
and the adjusted issue  price of such  Class to the  extent attributable to  the
portion of the unpaid principal balance thereof that was distributed.
 
    A  purchaser of a Regular  Certificate at a price  greater than its adjusted
issue price will be required  to include in gross  income the daily portions  of
the  original issue discount  on the Regular  Certificate reduced pro  rata by a
fraction, the numerator of which is the  excess of its purchase price over  such
adjusted issue price and the denominator of which is the excess of the remaining
stated redemption price at maturity over the adjusted issue price.
 
  VARIABLE RATE REGULAR CERTIFICATES
 
    Regular  Certificates may  provide for  interest based  on a  variable rate.
Under the Proposed OID Regulations, 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, and  (ii) the interest  compounds or is
payable at least annually at current values of certain objective rates  measured
by  or  based on  lending rates  for newly  borrowed  funds or  on the  price of
actively traded  property  or an  index  of the  prices  of such  property.  The
variable  interest generally will be qualified  stated interest to the extent it
is unconditionally  payable at  least  annually and,  to the  extent  successive
qualified  floating rates or a fixed rate  followed by a qualified floating rate
are used,  interest is  not significantly  accelerated or  deferred. Because  of
effective  date rules, qualified variable rates for REMIC purposes do not appear
to be  as broad  as for  OID  purposes without  further clarification  from  the
Internal  Revenue Service. The Internal Revenue Service has provided guidance in
Notice 93-11  that  a  rate  that  meets the  definition  in  the  Proposed  OID
Regulations of a "qualified floating rate" (I.E., a floating rate, variations in
which  can reasonably be  expected to measure  contemporaneous variations in the
cost of newly borrowed funds) is  a qualified variable rate for REMIC  purposes.
Accordingly,  under the REMIC  Regulations, a Regular  Certificate (i) bearing a
variable rate  tied to  current values  of  a qualified  floating rate  (or  the
highest,  lowest or average of two or more qualified floating rates, including a
rate based on the average cost of  funds of one or more financial  institutions)
or that represents a weighted
 
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<PAGE>
average  of rates on some or all of  the Mortgage Loans that bear either a fixed
rate or a qualified floating rate, including such a rate that is subject to  one
or  more caps or floors, or (ii) bearing one or more such variable rates for one
or more periods, or one or more  fixed rates for one or more periods,  qualifies
as a regular interest in a REMIC.
 
    The  Proposed OID  Regulations indicate  that the  amount of  original issue
discount with  respect to  a  Regular Certificate  bearing  a variable  rate  of
interest  will  accrue  in  the manner  described  above  under  "Original Issue
Discount," with  the yield  to  maturity and  future  payments on  such  Regular
Certificate  to be determined by assuming that  interest will be payable for the
life of the  Regular Certificate at  a reasonable fixed  rate that, taking  into
account  any  actual  discount  from  par, provides  a  yield  to  maturity that
approximates the applicable Federal rate under Code Section 1274(d). The Seller,
however,  unless  and  until  required   to  do  otherwise  by  final   Treasury
regulations,  intends  to  determine  original issue  discount  with  respect to
variable rate Regular Certificates based on the assumption that future  interest
payments  will be  based on  the initial rate  for the  relevant Class. Ordinary
income reportable for any period will be adjusted based on subsequent changes in
the applicable interest rate index.
 
    Although  unclear  at   present,  the  Seller   intends  to  treat   Regular
Certificates  bearing an  interest rate  that is a  weighted average  of the net
interest rates on  Mortgage Loans  having adjustable rates  as having  qualified
stated  interest. In such case, the applicable index used to compute interest on
the Mortgage Loans in effect  on the issue date  (or possibly the pricing  date)
will  be deemed  to be in  effect beginning with  the period in  which the first
weighted average adjustment date occurring after  the issue date occurs. If  the
Pass-Through  Rate for one or  more periods is less than  it would be based upon
the fully indexed  rate, the excess  of the interest  payments projected at  the
assumed  index over interest projected at such initial rate will be tested under
the DE  MINIMIS rules  as described  above.  Adjustments will  be made  in  each
accrual  period either  increasing or decreasing  the amount  of ordinary income
reportable to reflect the actual Pass-Through Rate on the Regular Certificate.
 
  MARKET DISCOUNT
 
    A purchaser  of a  Regular Certificate  also may  be subject  to the  market
discount  rules of Code Sections 1276 through 1278. Under these sections and the
principles applied by the  Proposed OID Regulations in  the context of  original
issue  discount,  "market  discount"  is the  amount  by  which  the purchaser's
original basis in the  Regular Certificate (i) is  exceeded by the  then-current
principal  amount of the Regular  Certificate, or (ii) in  the case of a Regular
Certificate having original issue  discount, is exceeded  by the adjusted  issue
price  of  such Regular  Certificate  at the  time  of purchase.  Such purchaser
generally will be required to recognize ordinary income to the extent of accrued
market discount on such Regular  Certificate as distributions includible in  the
stated  redemption  price at  maturity thereof  are received,  in an  amount not
exceeding any such distribution. Such market  discount would accrue in a  manner
to  be  provided  in  Treasury  regulations and  should  take  into  account the
Prepayment Assumption. The Conference Committee Report to the 1986 Act  provides
that until such regulations are issued, such market discount would accrue either
(i)  on the basis  of a constant interest  rate, or (ii) in  the ratio of stated
interest allocable to the relevant  period to the sum  of the interest for  such
period  plus the remaining interest as of the end of such period, or in the case
of a Regular Certificate  issued with original issue  discount, in the ratio  of
original  issue  discount accrued  for the  relevant  period to  the sum  of the
original issue  discount accrued  for such  period plus  the remaining  original
issue  discount as of the end of such period. Such purchaser also generally will
be required to treat a portion of any gain on a sale or exchange of the  Regular
Certificate  as ordinary income to the extent  of the market discount accrued to
the date of  disposition under one  of the foregoing  methods, less any  accrued
market  discount previously reported as ordinary income as partial distributions
in reduction of  the stated  redemption price  at maturity  were received.  Such
purchaser  will be required to defer deduction of a portion of the excess of the
interest paid or accrued on indebtedness incurred to purchase or carry a Regular
Certificate over the  interest distributable  thereon. The  deferred portion  of
such  interest expense in any taxable year generally will not exceed the accrued
market discount on  the Regular  Certificate for  such year.  Any such  deferred
interest  expense is,  in general,  allowed as  a deduction  not later  than the
 
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<PAGE>
year in which the  related market discount income  is recognized or the  Regular
Certificate  is  disposed  of. As  an  alternative  to the  inclusion  of market
discount in income  on the  foregoing basis, the  Regular Certificateholder  may
elect to include market discount in income currently as it accrues on all market
discount  instruments acquired by such Regular Certificateholder in that taxable
year or thereafter, in which case the interest deferral rule will not apply.
 
    By analogy to the Proposed OID Regulations, market discount with respect  to
a  Regular Certificate will be considered to  be zero if such market discount is
less than 0.25%  of the remaining  stated redemption price  at maturity of  such
Regular  Certificate multiplied by the weighted  average maturity of the Regular
Certificate (determined  as  described  above  in  the  fourth  paragraph  under
"Original  Issue  Discount")  remaining  after the  date  of  purchase. Treasury
regulations implementing the market discount rules have not yet been issued, and
therefore  investors  should  consult  their  own  tax  advisors  regarding  the
application  of  these rules.  Investors should  also consult  Revenue Procedure
92-67 concerning the elections  to include market  discount in income  currently
and to accrue market discount on the basis of a constant interest rate.
 
  PREMIUM
 
    A  Regular Certificate purchased at a cost greater than its remaining stated
redemption price  at maturity  generally  is considered  to  be purchased  at  a
premium.  If the Regular  Certificateholder holds such  Regular Certificate as a
"capital  asset"  within  the  meaning   of  Code  Section  1221,  the   Regular
Certificateholder  may elect  under Code  Section 171  to amortize  such premium
under the constant interest method. The Conference Committee Report to the  1986
Act  indicates a Congressional intent that the same rules that will apply to the
accrual of  market  discount  on  installment obligations  will  also  apply  to
amortizing  bond premium under Code Section  171 on installment obligations such
as the Regular Certificates, although it is unclear whether the alternatives  to
the  constant  interest  method  described  above  under  "Market  Discount" are
available. Amortizable bond  premium will be  treated as an  offset to  interest
income on a Regular Certificate, rather than as a separate deduction item.
 
  SALE OR EXCHANGE OF REGULAR CERTIFICATES
    If a Regular Certificateholder sells or exchanges a Regular Certificate, the
Regular  Certificateholder will recognize gain or  loss equal to the difference,
if any,  between the  amount received  and  its adjusted  basis in  the  Regular
Certificate.  The adjusted basis  of a Regular  Certificate generally will equal
the cost of  the Regular Certificate  to the seller,  increased by any  original
issue  discount or  market discount  previously included  in the  seller's gross
income with respect to the Regular  Certificate and reduced by amounts  included
in  the stated redemption price at maturity of the Regular Certificate that were
previously received by the seller and by any amortized premium.
 
    Except as described  above with respect  to market discount,  and except  as
provided  in this  paragraph, any  gain or  loss on  the sale  or exchange  of a
Regular Certificate realized by an investor who holds the Regular Certificate as
a capital asset will be capital gain or loss and will be long-term or short-term
depending on whether  the Regular Certificate  has been held  for the  long-term
capital  gain holding period (currently, more than  one year). Such gain will be
treated as  ordinary income  if there  was an  "intention to  call" the  Regular
Certificate  prior  to maturity.  The Proposed  OID  Regulations state  that the
presence of  a sinking  fund or  optional call  does not  give rise  to such  an
intention,  and the Seller does not believe  such an intention will otherwise be
present with respect to  a Series of Certificates,  although the application  of
these rules to Retail Class Certificates is unclear. In addition, such 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 the  gross
income  of the holder if his yield on  such Regular Certificate were 110% of the
applicable Federal rate under Code Section  1274(d) as of the date of  purchase,
over  (ii) the amount of income actually  includible in the gross income of such
holder with  respect to  the  Regular Certificate.  In  addition, gain  or  loss
recognized  from the sale  of a Regular  Certificate by certain  banks or thrift
institutions will be treated as ordinary income or loss pursuant to Code Section
582(c). The  preferential  rates  applicable to  long-term  capital  gains  were
eliminated  by the  1986 Act.  However, the  Revenue Reconciliation  Act of 1990
restored a preferential rate applicable to long-term capital gains with  respect
to certain individuals.
 
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<PAGE>
TAXATION OF RESIDUAL CERTIFICATES
 
  TAXATION OF REMIC INCOME
 
    Generally,  the "daily portions" of REMIC taxable income or net loss will be
includible as ordinary income or loss in determining the federal taxable  income
of  holders of Residual Certificates ("Residual Holders"), and will not be taxed
separately to the REMIC Pool. The daily portions of REMIC taxable income or  net
loss  of a Residual Holder are determined by allocating the REMIC Pool's taxable
income or net loss for each calendar quarter ratably to each day in such quarter
and by allocating such daily portion among the Residual Holders in proportion to
their respective holdings  of Residual Certificates  in the REMIC  Pool on  such
day.  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  limitation 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 will apply. REMIC  taxable
income  generally  means  the  REMIC Pool's  gross  income,  including interest,
original issue  discount income,  and market  discount income,  if any,  on  the
Mortgage  Loans, plus income  on reinvestment of cash  flows and reserve assets,
minus deductions, including interest and original issue discount expense on  the
Regular   Certificates,  servicing  fees   on  the  Mortgage   Loans  and  other
administrative expenses of the REMIC Pool, and amortization of premium, if  any,
with respect to the Mortgage Loans. The requirement that Residual Holders report
their  pro rata  share of  taxable income  or net  loss of  the REMIC  Pool will
continue until there  are no  Certificates of any  class of  the related  Series
outstanding.
 
    The  taxable income recognized by a Residual Holder in any taxable year will
be affected by,  among other  factors, the  relationship between  the timing  of
recognition of interest and original issue discount or market discount income or
amortization of premium with respect to the Mortgage Loans, on the one hand, and
the timing of deductions for interest (including original issue discount) on the
Regular  Certificates, on the other  hand. In the event  that an interest in the
Mortgage Loans is acquired by the REMIC Pool  at a discount, and one or more  of
such Mortgage Loans is prepaid, the Residual Holder may recognize taxable income
without being entitled to receive a corresponding amount of cash because (i) the
prepayment may be used in whole or in part to make distributions in reduction of
principal or Stated Amount on the Regular Certificates, and (ii) the discount on
the  Mortgage  Loans which  is  includible in  income  may exceed  the deduction
allowed upon such distributions on those Regular Certificates on account of  any
unaccrued  original issue discount relating  to those Regular Certificates. When
there is more than one Class  of Regular Certificates that distribute  principal
or  payments in  reduction of  Stated Amount  sequentially, this  mismatching of
income and  deductions  is particularly  likely  to  occur in  the  early  years
following  issuance of the Regular  Certificates when distributions in reduction
of principal or Stated Amount  are being made in  respect of earlier Classes  of
Regular  Certificates  to  the extent  that  such  Classes are  not  issued with
substantial discount. If taxable  income attributable to  such a mismatching  is
realized, in general, losses would be allowed in later years as distributions on
the  later Classes of Regular Certificates are  made. Taxable income may also be
greater in  earlier years  than in  later years  as a  result of  the fact  that
interest  expense  deductions,  expressed  as a  percentage  of  the outstanding
principal amount of  such a Series  of Regular Certificates,  may increase  over
time as distributions in reduction of principal or Stated Amount are made on the
lower yielding Classes of Regular Certificates, whereas, to the extent the REMIC
Pool  consists of fixed rate Mortgage Loans, interest income with respect to any
given Mortgage  Loan will  remain constant  over  time as  a percentage  of  the
outstanding  principal amount of that  loan. Consequently, Residual Holders must
have sufficient other sources of cash to pay any federal, state, or local income
taxes due as a result of such mismatching or unrelated deductions against  which
to  offset such income,  subject to the discussion  of "excess inclusions" below
under "Limitations on Offset or Exemption  of REMIC Income." The timing of  such
mismatching  of income  and deductions described  in this  paragraph, if present
with respect to a Series of Certificates, may have a significant adverse  effect
upon  a  Residual Holder's  after-tax rate  of return.  In addition,  a Residual
Holder's taxable income during certain  periods may exceed the income  reflected
by
 
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<PAGE>
such  Residual Holder  for such  periods in  accordance with  generally accepted
accounting principles. Investors should consult their own accountants concerning
the accounting treatment of their investment in Residual Certificates.
 
  BASIS AND LOSSES
 
    The amount of any net loss of the REMIC Pool that may be taken into  account
by  the  Residual  Holder is  limited  to  the adjusted  basis  of  the Residual
Certificate as  of the  close of  the quarter  (or time  of disposition  of  the
Residual Certificate if earlier), determined without taking into account the net
loss  for the quarter. The  initial adjusted basis of  a purchaser of a Residual
Certificate is  the amount  paid for  such Residual  Certificate. Such  adjusted
basis  will  be increased  by the  amount of  taxable income  of the  REMIC Pool
reportable by the Residual  Holder and will be  decreased (but not below  zero),
first,  by a cash distribution from the REMIC Pool and, second, by the amount of
loss of the  REMIC Pool  reportable by  the Residual  Holder. Any  loss that  is
disallowed  on account of this limitation  may be carried over indefinitely with
respect to the Residual Holder  as to whom such loss  was disallowed and may  be
used  by such Residual  Holder only to  offset any income  generated by the same
REMIC Pool.
 
    A Residual Holder will not be permitted to amortize directly the cost of its
Residual Certificate as  an offset to  its share  of the taxable  income of  the
related  REMIC Pool. However, that taxable income will not include cash received
by the REMIC Pool that  represents a recovery of the  REMIC Pool's basis in  its
assets.  Such  recovery of  basis  by the  REMIC Pool  will  have the  effect of
amortization of the issue  price of the Residual  Certificates over their  life.
However,  in view of the possible acceleration of the income of Residual Holders
described above under "Taxation of REMIC Income," the period of time over  which
such  issue price is effectively amortized may  be longer than the economic life
of the Residual Certificates.
 
    A Residual Certificate may have a negative value if the net present value of
anticipated tax liabilities exceeds the present value of anticipated cash flows.
The REMIC  Regulations  appear to  treat  the issue  price  of such  a  residual
interest  as zero rather  than such negative amount  for purposes of determining
the REMIC Pool's  basis in  its assets. The  preamble to  the REMIC  Regulations
states  that the  Internal Revenue  Service may  provide future  guidance on the
proper tax  treatment  of payments  made  by a  transferor  of such  a  residual
interest  to induce the transferee to acquire the interest, and Residual Holders
should consult their own tax advisors in this regard.
 
    Further, to the extent that the initial adjusted basis of a Residual  Holder
(other  than an original holder) in the Residual Certificate is greater than the
corresponding portion  of the  REMIC Pool's  basis in  the Mortgage  Loans,  the
Residual  Holder will not recover  a portion of such  basis until termination of
the  REMIC  Pool  unless  future  Treasury  regulations  provide  for   periodic
adjustments  to the REMIC income otherwise  reportable by such holder. The REMIC
Regulations currently in  effect do not  so provide. See  "Treatment of  Certain
Items of REMIC Income and Expense--Market Discount" below regarding the basis of
Mortgage  Loans  to  the  REMIC  Pool  and  "Sale  or  Exchange  of  a  Residual
Certificate" below regarding possible  treatment of a  loss upon termination  of
the REMIC Pool as a capital loss.
 
  TREATMENT OF CERTAIN ITEMS OF REMIC INCOME AND EXPENSE
 
    ORIGINAL  ISSUE  DISCOUNT.    Generally,  the  REMIC  Pool's  deductions for
original issue discount will be determined in the same manner as original  issue
discount  income on Regular  Certificates as described  above under "Taxation of
Regular Certificates--Original  Issue  Discount" and  "--Variable  Rate  Regular
Certificates," without regard to the DE MINIMIS rule described therein.
 
    MARKET DISCOUNT.  The REMIC Pool will have market discount income in respect
of  Mortgage Loans if, in general, the basis  of the REMIC Pool in such Mortgage
Loans is exceeded by their unpaid principal balances. The REMIC Pool's basis  in
such  Mortgage Loans is  generally the fair  market value of  the Mortgage Loans
immediately after the transfer thereof to the REMIC Pool. The REMIC  Regulations
provide  that such basis  is equal in the  aggregate to the  issue prices of all
regular and residual interests in the  REMIC Pool. In respect of Mortgage  Loans
that   have  market   discount  to   which  Code   Section  1276   applies,  the
 
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<PAGE>
accrued portion of such market discount would be recognized currently as an item
of ordinary income. Market discount income generally should accrue in the manner
described above  under  "Taxation  of  Regular  Certificates--Market  Discount."
However,  the rules of Code Section  1276 concerning market discount income will
not apply in the case of Mortgage Loans originated on or prior to July 18, 1984,
if any.  With respect  to  such Mortgage  Loans,  market discount  is  generally
includible  in  REMIC  taxable  income  or ordinary  gross  income  pro  rata as
principal payments are  received. The  deduction of  a portion  of the  interest
expense  on the Regular Certificates allocable  to such discount may be deferred
until such discount is included in income, and any gain on the sale or  exchange
thereof  will  be treated  as  ordinary income  to  the extent  of  the deferred
interest deductible at that time.
 
    PREMIUM.  Generally, if the  basis of the REMIC  Pool in the Mortgage  Loans
exceeds the unpaid principal balances thereof, the REMIC Pool will be considered
to  have acquired such Mortgage  Loans at a premium equal  to the amount of such
excess. As stated above, the  REMIC Pool's basis in  Mortgage Loans is the  fair
market  value of the Mortgage Loans, based  on the aggregate of the issue prices
of the regular and  residual interests in the  REMIC Pool immediately after  the
transfer  thereof to  the REMIC  Pool. In a  manner analogous  to the discussion
above under "Taxation of Regular  Certificates--Premium," a person that holds  a
Mortgage  Loan as a capital  asset under Code Section  1221 may elect under Code
Section 171 to amortize premium on Mortgage Loans originated after September 27,
1985 under a constant interest method. Amortizable bond premium will be  treated
as an offset to interest income on the Mortgage Loans, rather than as a separate
deduction  item. Because  substantially all  of the  mortgagors on  the Mortgage
Loans are expected to be individuals, Code Section 171 will not be available for
premium on Mortgage Loans originated on or prior to September 27, 1985.  Premium
with  respect to  such Mortgage  Loans may  be deductible  in accordance  with a
reasonable method regularly employed  by the holder  thereof. The allocation  of
such premium pro rata among principal payments should be considered a reasonable
method; however, the Internal Revenue Service may argue that such premium should
be  allocated in a different manner, such as allocating such premium entirely to
the final payment of principal.
 
  LIMITATIONS ON OFFSET OR EXEMPTION OF REMIC INCOME
 
    The Code  provides that,  to  the extent  provided  in regulations,  if  the
aggregate  value of the Residual Certificates relative to the aggregate value of
the  Regular  Certificates  and  Residual  Certificates  is  considered  to   be
"significant,"  as described below,  then a portion  (but not all)  of the REMIC
taxable income includible in determining the  federal income tax liability of  a
Residual  Holder will be subject to special treatment. That portion, referred to
as the "excess inclusion," is  equal to the excess  of REMIC taxable income  for
the calendar quarter allocable to a Residual Certificate over the daily accruals
for  such quarterly period of (i) 120%  of the long-term applicable Federal rate
that would  have  applied  to  the  Residual Certificate  (if  it  were  a  debt
instrument)  on the Startup  Day under Code Section  1274(d), multiplied by (ii)
the adjusted issue price of such  Residual Certificate at the beginning of  such
quarterly  period.  For this  purpose, the  adjusted issue  price of  a Residual
Certificate at the beginning  of a quarter  is the issue  price of the  Residual
Certificate, plus the amount of such daily accruals of REMIC income described in
this  paragraph for all prior quarters, decreased by any distributions made with
respect to such Residual  Certificate prior to the  beginning of such  quarterly
period.  Although the Conference Committee Report to the 1986 Act indicates that
the value of all Residual Certificates would be considered significant in  cases
where  such  value  is  at  least  2% of  the  aggregate  value  of  the Regular
Certificates and Residual Certificates, the  REMIC Regulations have not  adopted
such a general rule. Accordingly, the portion of the REMIC Pool's taxable income
that  will be treated as  excess inclusions will be  determined by the preceding
formula, with the effect that such excess inclusions will be a larger portion of
such income as the relative value of the Residual Certificates diminishes.
 
    The portion of a  Residual Holder's REMIC taxable  income consisting of  the
excess inclusions generally may not be offset by other deductions, including net
operating  loss carryforwards, on such Residual Holder's return. Further, if the
Residual Holder is  an organization  subject to  the tax  on unrelated  business
income imposed by Code Section 511, the Residual Holder's excess inclusions will
be treated as unrelated
 
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<PAGE>
business  taxable income  of such Residual  Holder for purposes  of Code Section
511. In addition, REMIC  taxable income is subject  to 30% withholding tax  with
respect  to certain  persons who  are not U.S.  Persons (as  defined below under
"Tax-Related  Restrictions   on  Transfer   of  Residual   Certificates--Foreign
Investors"),  and the portion  thereof attributable to  excess inclusions is not
eligible for  any  reduction  in the  rate  of  withholding tax  (by  treaty  or
otherwise).  See "Taxation of  Certain Foreign Investors--Residual Certificates"
below. Finally, if  a real  estate investment  trust or  a regulated  investment
company  owns  a  Residual  Certificate,  a  portion  (allocated  under Treasury
regulations yet to be  issued) of dividends paid  by the real estate  investment
trust  or  regulated investment  company could  not be  offset by  net operating
losses of its shareholders, would  constitute unrelated business taxable  income
for   tax-exempt  shareholders,  and  would   be  ineligible  for  reduction  of
withholding to certain persons who are not U.S. Persons.
 
    An exception  to  the  inability  of a  Residual  Holder  to  offset  excess
inclusions  with unrelated deductions  and net operating  losses applies to Code
Section 593 institutions ("thrift institutions"). For purposes of applying  this
rule,  all  members of  an  affiliated group  filing  a consolidated  return are
treated as one taxpayer, except that  thrift institutions to which Code  Section
593  applies,  together  with their  subsidiaries  formed to  issue  REMICs, are
treated  as  separate   corporations.  Furthermore,  the   Code  provides   that
regulations  may disallow the ability of  a thrift institution to use deductions
to offset excess inclusions if necessary or appropriate to prevent the avoidance
of tax. A thrift institution may not so offset its excess inclusions unless  the
Residual  Certificates  have "significant  value," which  requires that  (i) the
Residual Certificates have an issue  price that is at least  equal to 2% of  the
aggregate  of  the  issue  prices  of  all  Residual  Certificates  and  Regular
Certificates with respect to the REMIC  Pool, and (ii) the anticipated  weighted
average  life of the  Residual Certificates is  at least 20%  of the anticipated
weighted average life of the REMIC  Pool. The anticipated weighted average  life
of  the Residual  Certificates is based  on all distributions  anticipated to be
received with respect thereto (using the Prepayment Assumption). The anticipated
weighted average life of the REMIC  Pool is the aggregate weighted average  life
of   all  classes   of  interests   therein  (computed   using  all  anticipated
distributions on a regular interest with  nominal or no principal). 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.  If
applicable,  the Prospectus Supplement  with respect to a  Series will set forth
whether the  Residual  Certificates are  expected  to have  "significant  value"
within the meaning of the REMIC Regulations.
 
  TAX-RELATED RESTRICTIONS ON TRANSFER OF RESIDUAL CERTIFICATES
 
    DISQUALIFIED  ORGANIZATIONS.    If any  legal  or beneficial  interest  in a
Residual Certificate is transferred to  a Disqualified Organization (as  defined
below),  a tax would  be imposed in  an amount equal  to the product  of (i) the
present value of the  total anticipated excess inclusions  with respect to  such
Residual  Certificate  for  periods  after the  transfer  and  (ii)  the highest
marginal  federal  income  tax  rate  applicable  to  corporations.  The   REMIC
Regulations  provide that the anticipated excess  inclusions are based on actual
prepayment experience to the date of  the transfer and projected payments  based
on  the  Prepayment Assumption.  The present  value  rate equals  the applicable
federal rate under Code  Section 1274(d) as  of the date of  the transfer for  a
term  ending  with the  last  calendar quarter  in  which excess  inclusions are
expected to accrue. Such  rate is applied to  the anticipated excess  inclusions
from  the end of the remaining calendar quarters in which they arise to the date
of the transfer. Such a tax generally would be imposed on the transferor of  the
Residual  Certificate,  except  that where  such  transfer is  through  an agent
(including  a  broker,   nominee,  or  other   middleman)  for  a   Disqualified
Organization,  the  tax  would instead  be  imposed  on such  agent.  However, a
transferor of a Residual Certificate  would in no event  be liable for such  tax
with  respect to  a transfer  if the transferee  furnishes to  the transferor an
affidavit stating that the transferee is not a Disqualified Organization and, as
of the time of the transfer, the transferor does not have actual knowledge  that
such  affidavit is  false. The tax  also may  be waived by  the Internal Revenue
Service if  the  Disqualified Organization  promptly  disposes of  the  residual
interest and the transferor pays income tax at the highest corporate rate on the
excess inclusion for the period the Residual Certificate is actually held by the
Disqualified Organization.
 
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<PAGE>
    In  addition,  if  a "Pass-Through  Entity"  (as defined  below)  has excess
inclusion income with respect  to a Residual Certificate  during a taxable  year
and  a Disqualified Organization is  the record holder of  an equity interest in
such entity, then a tax  is imposed on such entity  equal to the product of  (i)
the  amount  of excess  inclusions that  are  allocable to  the interest  in the
Pass-Through Entity during the period such interest is held by such Disqualified
Organization, and (ii) the highest  marginal federal corporate income tax  rate.
Such  tax would be deductible from the ordinary gross income of the Pass-Through
Entity for the  taxable year. The  Pass-Through Entity would  not be liable  for
such  tax if it has received an affidavit from such record holder that it is not
a Disqualified  Organization or  stating such  holder's taxpayer  identification
number  and, during the period such person  is the record holder of the Residual
Certificate, the Pass-Through Entity  does not have  actual knowledge that  such
affidavit is false.
 
    For these purposes, (i) "Disqualified Organization" means the United States,
any  state  or  political  subdivision  thereof,  any  foreign  government,  any
international  organization,  any  agency  or  instrumentality  of  any  of  the
foregoing  (provided, that such term does  not include an instrumentality if all
of its activities are subject to tax and a majority of its board of directors is
not selected  by any  such governmental  entity), any  cooperative  organization
furnishing  electric energy or  providing telephone service  to persons in rural
areas as described in  Code Section 1381(a)(2)(C),  and any organization  (other
than  a farmers' cooperative described in Code  Section 521) that is exempt from
taxation under  the Code  unless such  organization  is subject  to the  tax  on
unrelated  business income imposed  by Code Section  511, and (ii) "Pass-Through
Entity" means any  regulated investment company,  real estate investment  trust,
common  trust  fund,  partnership,  trust  or  estate  and  certain corporations
operating on  a  cooperative  basis.  Except as  may  be  provided  in  Treasury
regulations,  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  Pooling and Servicing  Agreement with respect to  a Series will provide
that  no  legal  or  beneficial  interest  in  a  Residual  Certificate  may  be
transferred  or registered unless  (i) the proposed  transferee furnishes to the
Seller and the Trustee an affidavit providing its taxpayer identification number
and stating  that  such transferee  is  the  beneficial owner  of  the  Residual
Certificate  and is not  a Disqualified Organization and  is not purchasing such
Residual Certificate  on  behalf of  a  Disqualified Organization  (I.E.,  as  a
broker,  nominee,  or  middleman thereof)  and  (ii) the  transferor  provides a
statement in  writing to  the  Seller and  the Trustee  that  it has  no  actual
knowledge  that such  affidavit is  false. Moreover,  the Pooling  and Servicing
Agreement will provide that any attempted or purported transfer in violation  of
these transfer restrictions will be null and void and will vest no rights in any
purported  transferee. Each Residual  Certificate with respect  to a Series will
bear a legend  referring to  such restrictions  on transfer,  and each  Residual
Holder  will be deemed to  have agreed, as a  condition of ownership thereof, to
any amendments to the related Pooling and Servicing Agreement required under the
Code  or   applicable  Treasury   regulations   to  effectuate   the   foregoing
restrictions.  Information necessary to compute an applicable excise tax must be
furnished to the Internal Revenue Service and to the requesting party within  60
days  of  the request,  and  the Seller  or  the Trustee  may  charge a  fee for
computing and providing such information.
 
    NONECONOMIC RESIDUAL  INTERESTS.    The REMIC  Regulations  would  disregard
certain  transfers of Residual Certificates, in  which case the transferor would
continue to be treated as the owner of the Residual Certificates and thus  would
continue  to be subject to tax on its allocable portion of the net income of the
REMIC Pool. Under the REMIC Regulations,  a transfer of a "noneconomic  residual
interest"  (as defined below) to a Residual Holder (other than a Residual Holder
who is  not  a U.S.  Person,  as defined  below  under "Foreign  Investors")  is
disregarded  for all federal income tax purposes if a significant purpose of the
transferor is to impede the assessment or collection of tax. A residual interest
in a REMIC (including a residual interest with a positive value at issuance)  is
a  "noneconomic residual interest" unless, at the  time of the transfer, (i) the
present value of the expected future  distributions on the residual interest  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
 
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<PAGE>
anticipated  excess inclusions  in an amount  sufficient to  satisfy the accrued
taxes on  each  excess inclusion.  The  anticipated excess  inclusions  and  the
present  value rate are determined  in the same manner  as set forth above under
"Disqualified Organizations." The REMIC  Regulations explain that 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 safe  harbor is provided  if (i) the  transferor
conducted,  at  the time  of  the transfer,  a  reasonable investigation  of the
financial condition of the transferee and found that the transferee historically
had paid  its debts  as  they came  due and  found  no significant  evidence  to
indicate  that the transferee would  not continue to pay  its debts as they came
due in the future, and (ii) the transferee represents to the transferor that  it
understands  that,  as the  holder of  the  non-economic residual  interest, the
transferee may incur tax  liabilities in excess of  any cash flows generated  by
the  interest  and that  the  transferee intends  to  pay taxes  associated with
holding the residual  interest as  they become  due. The  Pooling and  Servicing
Agreement  with  respect  to  each  Series  of  Certificates  will  require  the
transferee of a Residual Certificate to certify to the matters in the  preceding
sentence   as  part  of   the  affidavit  described   above  under  the  heading
"Disqualified Organizations."
 
    FOREIGN INVESTORS.   The REMIC Regulations  provide that the  transfer of  a
Residual  Certificate that has  "tax avoidance potential"  to a "foreign person"
will be disregarded for all federal tax purposes. This rule appears intended  to
apply to a transferee who is not a "U.S. Person" (as defined below), unless such
transferee's  income is  effectively connected  with the  conduct of  a trade or
business within the United States. A Residual Certificate is deemed to have  tax
avoidance potential unless, at the time of the transfer, (i) the future value of
expected  distributions equals at least 30% of the anticipated excess inclusions
after the  transfer,  and  (ii)  the  transferor  reasonably  expects  that  the
transferee will receive sufficient distributions from the REMIC Pool at or after
the  time at which the excess inclusions accrue and prior to the end of the next
succeeding taxable  year for  the accumulated  withholding tax  liability to  be
paid.  If the non-U.S. Person transfers the  Residual Certificate back to a U.S.
Person, the  transfer  will  be  disregarded and  the  foreign  transferor  will
continue  to be treated  as the owner  unless arrangements are  made so that the
transfer does not have  the effect of  allowing the transferor  to avoid tax  on
accrued excess inclusions.
 
    The  Prospectus  Supplement relating  to the  Certificates  of a  Series may
provide that a Residual  Certificate may not be  purchased by or transferred  to
any  person that  is not  a U.S.  Person or  may describe  the circumstances and
restrictions pursuant  to which  such a  transfer may  be made.  The term  "U.S.
Person"  means  a  citizen or  resident  of  the United  States,  a corporation,
partnership or other entity  created or organized  in or under  the laws of  the
United  States or any political subdivision thereof,  or an estate or trust that
is subject to U.S. federal income tax regardless of the source of its income.
 
  SALE OR EXCHANGE OF A RESIDUAL CERTIFICATE
 
    Upon the sale  or exchange of  a Residual Certificate,  the Residual  Holder
will  recognize gain or loss equal to the excess, if any, of the amount realized
over the  adjusted  basis  (as  described  above  under  "Taxation  of  Residual
Certificates--Basis  and  Losses")  of  such Residual  Holder  in  such Residual
Certificate at the time of  the sale or exchange.  In addition to reporting  the
taxable  income of the REMIC Pool, a Residual Holder will have taxable income to
the extent that any  cash distribution to  it from the  REMIC Pool exceeds  such
adjusted  basis on that Distribution  Date. Such income will  be treated as gain
from the sale or exchange of the  Residual Certificate. It is possible that  the
termination of the REMIC Pool may be treated as a sale or exchange of a Residual
Holder's  Residual Certificate,  in which  case, if  the Residual  Holder has an
adjusted basis in its  Residual Certificate remaining when  its interest in  the
REMIC  Pool terminates, and if  it holds such Residual  Certificate as a capital
asset under Code Section  1221, then it  will recognize a  capital loss at  that
time in the amount of such remaining adjusted basis.
 
    The  Conference Committee  Report to the  1986 Act provides  that, except as
provided in Treasury regulations yet to be  issued, the wash sale rules of  Code
Section  1091  will apply  to dispositions  of  Residual Certificates  where the
seller of  the Residual  Certificate,  during the  period beginning  six  months
before the
 
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sale or disposition of the Residual Certificate and ending six months after such
sale or disposition, acquires (or enters into any other transaction that results
in  the application of Code Section 1091)  any residual interest in any REMIC or
any interest in a "taxable mortgage pool" (such as a non-REMIC owner trust) that
is economically comparable to a Residual Certificate.
 
  TAXES THAT MAY BE IMPOSED ON THE REMIC POOL
 
    PROHIBITED TRANSACTIONS.   Income  from certain  transactions by  the  REMIC
Pool,  called prohibited  transactions, will not  be part of  the calculation of
income or loss includible in the federal income tax returns of Residual Holders,
but rather will be taxed directly to  the REMIC Pool at a 100% rate.  Prohibited
transactions generally include (i) the disposition of a qualified mortgage other
than  for (a) substitution within  two years of the  Startup Day for a defective
(including a defaulted) obligation (or repurchase  in lieu of substitution of  a
defective  (including a defaulted) obligation at  any time) or for any qualified
mortgage within three months  of the Startup Day,  (b) foreclosure, default,  or
imminent  default of a  qualified mortgage, (c) bankruptcy  or insolvency of the
REMIC Pool,  or (d)  a qualified  (complete) liquidation,  (ii) the  receipt  of
income  from assets that are  not the type of  mortgages or investments that the
REMIC Pool is permitted to hold, (iii) the receipt of compensation for services,
or (iv) the receipt of gain from disposition of cash flow investments other than
pursuant to a qualified liquidation. Notwithstanding  (i) and (iv), it is not  a
prohibited  transaction  to sell  REMIC Pool  property to  prevent a  default on
Regular Certificates  as a  result of  a default  on qualified  mortgages or  to
facilitate   a  clean-up  call  (generally,  an  optional  termination  to  save
administrative costs when no more than a small percentage of the Certificates is
outstanding). The REMIC Regulations indicate that the modification of a Mortgage
Loan generally will not  be treated as  a disposition if it  is occasioned by  a
default  or reasonably foreseeable default, an  assumption of the Mortgage Loan,
the waiver of a due-on-sale or  due-on-encumbrance clause, or the conversion  of
an  interest  rate  by  a  mortgagor pursuant  to  the  terms  of  a convertible
adjustable rate Mortgage Loan.
 
    CONTRIBUTIONS TO THE  REMIC POOL  AFTER THE STARTUP  DAY.   In general,  the
REMIC  Pool will be subject to a tax at a 100% rate on the value of any property
contributed to the REMIC Pool after the Startup Day. Exceptions are provided for
cash contributions to the REMIC Pool  (i) during the three months following  the
Startup  Day, (ii) made to a qualified  reserve fund by a Residual Holder, (iii)
in the nature of a guarantee, (iv) made to facilitate a qualified liquidation or
clean-up call, and (v) as otherwise permitted in Treasury regulations yet to  be
issued.
 
    NET  INCOME FROM FORECLOSURE  PROPERTY.  The  REMIC Pool will  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. Generally, property acquired by  deed in lieu of foreclosure
would be  treated as  "foreclosure property"  for a  period of  two years,  with
possible  extensions. Net income from  foreclosure property generally means gain
from the sale  of a foreclosure  property that is  inventory property and  gross
income   from  foreclosure  property  other  than  qualifying  rents  and  other
qualifying income for a real estate investment trust.
 
  LIQUIDATION OF THE REMIC POOL
 
    If a REMIC Pool 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  Pool'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 Pool will recognize no  gain or loss on the sale of its
assets, provided that the REMIC Pool  credits or distributes in liquidation  all
of  the sale proceeds plus its cash (other than amounts retained to meet claims)
to holders  of  Regular Certificates  and  Residual Holders  within  the  90-day
period.
 
  ADMINISTRATIVE MATTERS
 
    The  REMIC Pool will  be required to  maintain its books  on a calendar year
basis and to file federal income tax returns for federal income tax purposes  in
a manner similar to a partnership. The form for such
 
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income  tax return  is Form 1066,  U.S. Real Estate  Mortgage Investment Conduit
Income Tax  Return.  The Trustee  will  be required  to  sign the  REMIC  Pool's
returns.  Treasury  regulations provide  that, except  where  there is  a single
Residual Holder for an entire  taxable year, the REMIC  Pool will be subject  to
the  procedural and administrative rules of the Code applicable to partnerships,
including the determination by the  Internal Revenue Service of any  adjustments
to,  among other things, items of REMIC income, gain, loss, deduction, or credit
in a unified administrative proceeding. The Servicer will be obligated to act as
"tax matters  person,"  as  defined in  applicable  Treasury  regulations,  with
respect to the REMIC Pool, in its capacity as either Residual Holder or agent of
the  Residual Holders.  If the  Code or  applicable Treasury  regulations do not
permit the Servicer to act as tax matters person in its capacity as agent of the
Residual Holders, the  Residual Holder chosen  by the Residual  Holders or  such
other  person specified pursuant to Treasury regulations will be required to act
as tax matters person.
 
LIMITATIONS ON DEDUCTION OF CERTAIN EXPENSES
 
    An investor  who is  an individual,  estate,  or trust  will be  subject  to
limitation with respect to certain itemized deductions described in Code Section
67, to the extent that such itemized deductions, in the aggregate, do not exceed
2%  of  the  investor's adjusted  gross  income.  In addition,  Code  Section 68
provides that itemized deductions otherwise allowable  for a taxable year of  an
individual  taxpayer will be reduced  by the lesser of (i)  3% of the excess, if
any, of adjusted gross income  over $100,000 ($50,000 in  the case of a  married
individual  filing a  separate return),  or (ii) 80%  of the  amount of itemized
deductions otherwise allowable for such year. In the case of a REMIC Pool,  such
deductions  may include deductions under Code  Section 212 for the Servicing Fee
and all administrative  and other expenses  relating to the  REMIC Pool, or  any
similar  expenses allocated to the REMIC Pool with respect to a regular interest
it holds in  another REMIC. Such  investors who hold  REMIC Certificates  either
directly  or indirectly through certain pass-through entities may have their pro
rata share of such  expenses allocated to them  as additional gross income,  but
may  be subject to such limitation on deductions. In addition, such expenses are
not deductible at all for purposes of computing the alternative minimum tax, and
may cause such investors to be subject to significant additional tax  liability.
Temporary  Treasury  regulations provide  that the  additional gross  income and
corresponding amount of expenses generally are  to be allocated entirely to  the
holders  of Residual  Certificates in the  case of  a REMIC Pool  that would not
qualify as a fixed investment trust in the absence of a REMIC election. However,
such additional gross  income and  limitation on  deductions will  apply to  the
allocable  portion of such expenses to  holders of Regular Certificates, as well
as holders of Residual Certificates, where such Regular Certificates are  issued
in  a manner that is similar to  pass-through certificates in a fixed investment
trust. In general, such allocable portion will be determined based on the  ratio
that  a REMIC Certificateholder's income, determined  on a daily basis, bears to
the income of all holders of Regular Certificates and Residual Certificates with
respect to a  REMIC Pool. As  a result, individuals,  estates or trusts  holding
REMIC  Certificates  (either directly  or  indirectly through  a  grantor trust,
partnership, S  corporation,  REMIC,  or  certain  other  pass-through  entities
described  in  the foregoing  temporary Treasury  regulations) may  have taxable
income in excess  of the  interest income at  the pass-through  rate on  Regular
Certificates  that are issued  in a single class  or otherwise consistently with
fixed investment trust status or in excess of cash distributions for the related
period on Residual Certificates.
 
TAXATION OF CERTAIN FOREIGN INVESTORS
 
  REGULAR CERTIFICATES
 
    Interest,  including  original  issue  discount,  distributable  to  Regular
Certificateholders  who are non-resident aliens,  foreign corporations, or other
Non-U.S. Persons (as  defined below),  will be  considered "portfolio  interest"
and,  therefore, generally will not be  subject to 30% United States withholding
tax, provided that such  Non-U.S. Person (i) is  not a "10-percent  shareholder"
within  the  meaning  of  Code  Section  871(h)(3)(B)  or  a  controlled foreign
corporation described  in  Code  Section  881(c)(3)(C)  and  (ii)  provides  the
Trustee, or the person who would otherwise be required to withhold tax from such
distributions  under Code Section  1441 or 1442,  with an appropriate statement,
signed under penalties of perjury, identifying the beneficial owner and stating,
among   other   things,   that   the    beneficial   owner   of   the    Regular
 
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Certificate  is  a Non-U.S.  Person. If  such statement,  or any  other required
statement, is  not  provided,  30%  withholding will  apply  unless  reduced  or
eliminated  pursuant to an applicable  tax treaty or unless  the interest on the
Regular Certificate is  effectively connected  with the  conduct of  a trade  or
business  within the United States by such  Non-U.S. Person. In the latter case,
such Non-U.S. Person  will be  subject to United  States federal  income tax  at
regular  rates. Investors who are Non-U.S.  Persons should consult their own tax
advisors regarding the  specific tax consequences  to them of  owning a  Regular
Certificate.  The term  "Non-U.S. Person"  means any  person who  is not  a U.S.
Person.
 
  RESIDUAL CERTIFICATES
 
    The Conference Committee Report to the 1986 Act indicates that amounts  paid
to  Residual  Holders  who are  Non-U.S.  Persons  are treated  as  interest for
purposes of  the 30%  (or  lower treaty  rate)  United States  withholding  tax.
Treasury  regulations provide that  amounts distributed to  Residual Holders may
qualify as "portfolio interest," subject to the conditions described in "Regular
Certificates" above, but  only to the  extent that (i)  the Mortgage Loans  were
issued  after July  18, 1984  and (ii)  the Trust  Estate or  segregated pool of
assets therein (as to which  a separate REMIC election  will be made), to  which
the  Residual Certificate relates, consists of obligations issued in "registered
form" within the meaning  of Code Section  163(f)(1). Generally, Mortgage  Loans
will  not be, but  regular interests in  another REMIC Pool  will be, considered
obligations issued in registered form.  Furthermore, a Residual Holder will  not
be entitled to any exemption from the 30% withholding tax (or lower treaty rate)
to  the  extent of  that portion  of  REMIC taxable  income that  constitutes an
"excess inclusion."  See  "Taxation  of  Residual  Certificates--Limitations  on
Offset  or Exemption of REMIC  Income." If the amounts  paid to Residual Holders
who are Non-U.S. Persons are effectively  connected with the conduct of a  trade
or  business within the  United States by  such Non-U.S. Persons,  30% (or lower
treaty rate)  withholding will  not apply.  Instead, the  amounts paid  to  such
Non-U.S.  Persons will be subject to United States federal income tax at regular
rates. If 30%  (or lower treaty  rate) withholding is  applicable, such  amounts
generally  will be taken into account for purposes of withholding only when paid
or otherwise distributed (or when the Residual Certificate is disposed of) under
rules similar  to withholding  upon disposition  of debt  instruments that  have
original  issue discount. See "Tax-Related  Restrictions on Transfer of Residual
Certificates--Foreign Investors"  above  concerning  the  disregard  of  certain
transfers  having "tax avoidance potential."  Investors who are Non-U.S. Persons
should consult their own tax advisors regarding the specific tax consequences to
them of owning Residual Certificates.
 
BACKUP WITHHOLDING
 
    Distributions made on the Regular  Certificates, and proceeds from the  sale
of  the Regular Certificates to or through  certain brokers, may be subject to a
"backup" withholding tax under Code Section 3406 of 31% on "reportable payments"
(including interest distributions, original  issue discount, and, under  certain
circumstances,  principal  distributions) unless  the  Regular Certificateholder
complies with certain reporting  and/or certification procedures, including  the
provision of its taxpayer identification number to the Trustee, its agent or the
broker   who   effected  the   sale  of   the   Regular  Certificate,   or  such
Certificateholder is otherwise an  exempt recipient under applicable  provisions
of  the  Code. Any  amounts  to be  withheld  from distribution  on  the Regular
Certificates would be refunded by the  Internal Revenue Service or allowed as  a
credit against the Regular Certificateholder's federal income tax liability.
 
REPORTING REQUIREMENTS
 
    Reports  of  accrued  interest,  original  issue  discount  and  information
necessary to compute the accrual of market discount will be made annually to the
Internal  Revenue   Service  and   to  individuals,   estates,  non-exempt   and
non-charitable  trusts, and  partnerships who  are either  holders of  record of
Regular Certificates or beneficial owners who own Regular Certificates through a
broker or middleman as nominee. All  brokers, nominees and all other  non-exempt
holders  of record of Regular Certificates (including corporations, non-calendar
year taxpayers,  securities  or  commodities  dealers,  real  estate  investment
trusts,  investment  companies,  common  trust  funds,  thrift  institutions and
charitable trusts) may request such information for
 
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any calendar  quarter  by telephone  or  in  writing by  contacting  the  person
designated  in  Internal  Revenue  Service Publication  938  with  respect  to a
particular Series of Regular Certificates. Holders through nominees must request
such information from the nominee.
 
    The Internal Revenue  Service's Form  1066 has an  accompanying Schedule  Q,
Quarterly  Notice to  Residual Interest Holders  of REMIC Taxable  Income or Net
Loss Allocation. Treasury regulations  require that Schedule  Q be furnished  by
the  REMIC Pool to  each Residual Holder by  the end of  the month following the
close of  each calendar  quarter  (41 days  after the  end  of a  quarter  under
proposed Treasury regulations) in which the REMIC Pool is in existence.
 
    Treasury   regulations   require  that,   in   addition  to   the  foregoing
requirements, information  must  be  furnished quarterly  to  Residual  Holders,
furnished annually, if applicable, to holders of Regular Certificates, and filed
annually  with the Internal Revenue Service  concerning Code Section 67 expenses
(see "Limitations on  Deduction of  Certain Expenses" above)  allocable to  such
holders.  Furthermore,  under such  regulations,  information must  be furnished
quarterly  to  Residual  Holders,  furnished  annually  to  holders  of  Regular
Certificates,  and filed annually  with the Internal  Revenue Service concerning
the percentage of  the REMIC  Pool's assets  meeting the  qualified asset  tests
described above under "Status of REMIC Certificates."
 
                FEDERAL INCOME TAX CONSEQUENCES FOR CERTIFICATES
                     AS TO WHICH NO REMIC ELECTION IS MADE
 
STANDARD CERTIFICATES
 
  GENERAL
 
    In  the  event that  no  election is  made  to treat  a  Trust Estate  (or a
segregated pool  of  assets  therein)  with respect  to  a  Series  of  Standard
Certificates  as a REMIC, the Trust Estate will be classified as a grantor trust
under subpart E, Part 1  of subchapter J of the  Code and not as an  association
taxable as a corporation or a "taxable mortgage pool" within the meaning of Code
Section  7701(i). Where  there is  no Fixed Retained  Yield with  respect to the
Mortgage  Loans  underlying  the  Certificates  of  a  Series,  and  where  such
Certificates  are not designated  as "Stripped Certificates"  the holder of each
such Certificate in  such Series  will be  treated as the  owner of  a pro  rata
undivided  interest  in the  ordinary income  and corpus  portions of  the Trust
Estate represented  by  his Standard  Certificate  and will  be  considered  the
beneficial owner of a pro rata undivided interest in each of the Mortgage Loans,
subject  to the discussion  below under "Recharacterization  of Servicing Fees."
Accordingly, the holder of a Standard Certificate of a particular Series will be
required to report on its  federal income tax return its  pro rata share of  the
entire  income from the Mortgage Loans  represented by his Standard Certificate,
including interest at  the coupon rate  on such Mortgage  Loans, original  issue
discount  (if any), prepayment  fees, assumption fees,  and late payment charges
received by the Servicer, in  accordance with such Standard  Certificateholder's
method  of accounting.  A Standard Certificateholder  generally will  be able to
deduct its share of the Servicing Fee and all administrative and other  expenses
of  the Trust Estate in accordance with  its method of accounting, provided that
such amounts are  reasonable compensation  for services rendered  to that  Trust
Estate.  However,  investors  who are  individuals,  estates or  trusts  who own
Standard Certificates,  either  directly  or indirectly  through  certain  pass-
through entities, will be subject to limitation with respect to certain itemized
deductions described in Code Section 67, including deductions under Code Section
212  for the Servicing Fee and all such administrative and other expenses of the
Trust Estate,  to the  extent that  such deductions,  in the  aggregate, do  not
exceed  two percent  of an investor's  adjusted gross income.  In addition, Code
Section 68 provides that itemized  deductions otherwise allowable for a  taxable
year  of an individual taxpayer will  be reduced by the lesser  of (i) 3% of the
excess, if any, of adjusted gross income over $100,000 ($50,000 in the case of a
married individual filing  a separate  return) (in  each case,  as adjusted  for
inflation), or (ii) 80% of the amount of itemized deductions otherwise allowable
for  such  year.  As a  result,  such investors  holding  Standard Certificates,
directly or indirectly through a pass-through entity, may have aggregate taxable
income in  excess of  the aggregate  amount of  cash received  on such  Standard
Certificates  with respect to  interest at the pass-through  rate or as discount
income  on  such   Standard  Certificates.  In   addition,  such  expenses   are
 
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not deductible at all for purposes of computing the alternative minimum tax, and
may  cause such investors to be subject to significant additional tax liability.
Moreover, where there is Fixed Retained Yield with respect to the Mortgage Loans
underlying a Series of Standard Certificates or where the servicing fees are  in
excess  of reasonable servicing compensation, the transaction will be subject to
the application of the "stripped bond" and "stripped coupon" rules of the  Code,
as  described  below under  "Stripped  Certificates" and  "Recharacterization of
Servicing Fees," respectively.
 
  TAX STATUS
 
    Cadwalader, Wickersham & Taft has advised the Seller that:
 
       1.  A Standard  Certificate  owned  by  a  "domestic  building  and  loan
           association"  within the meaning of  Code Section 7701(a)(19) will be
    considered to represent  "loans...secured by an  interest in real  property"
    within the meaning of Code Section 7701(a)(19)(C)(v), provided that the real
    property   securing  the   Mortgage  Loans  represented   by  that  Standard
    Certificate is of the type described in such section of the Code.
 
       2.  A Standard Certificate owned by a financial institution described  in
           Code  Section 593(a) will be considered to represent "qualifying real
    property loans" within the meaning of Code Section 593(d)(1), provided  that
    the  real property securing the Mortgage  Loans represented by that Standard
    Certificate is of the type described in such section of the Code.
 
       3.  A Standard Certificate owned by  a real estate investment trust  will
           be considered to represent "real estate assets" within the meaning of
    Code Section 856(c)(5)(A) to the extent that the assets of the related Trust
    Estate  consist of qualified assets, and interest income on such assets will
    be  considered  "interest  on  obligations  secured  by  mortgages  on  real
    property" within the meaning of Code Section 856(c)(3)(B).
 
       4.  A  Standard  Certificate  owned  by a  REMIC  will  be  considered to
           represent an "obligation (including any participation or  certificate
    of beneficial ownership therein) which is principally secured by an interest
    in  real property" within  the meaning of Code  Section 860G(a)(3)(A) to the
    extent that the  assets of the  related Trust Estate  consist of  "qualified
    mortgages" within the meaning of Code Section 860G(a)(3).
 
    An  issue arises as to whether Buy-Down  Loans may be characterized in their
entirety under the Code provisions cited in the immediately preceding paragraph.
Code Section 593(d)(1)(C) provides that the term "qualifying real property loan"
does not include a loan "to the extent  secured by a deposit in or share of  the
taxpayer."  The application of  this provision to a  Buy-Down Fund is uncertain,
but may require that a  taxpayer's investment in a  Buy-Down Loan be reduced  by
the  Buy-Down Fund. As  to the treatment  of Buy-Down Loans  as "qualifying real
property loans" under Code  Section 593(d)(1) if the  exception of Code  Section
593(d)(1)(C)  is  inapplicable,  as  "loans...secured  by  an  interest  in real
property" under Code  Section 7701(a)(19)(C)(v), as  "real estate assets"  under
Code Section 856(c)(5)(A), and as "obligation[s] . . . principally secured by an
interest  in real property" under Code  Section 860G(a)(3)(A), there is indirect
authority supporting treatment of an investment  in a Buy-Down Loan as  entirely
secured  by real property if the fair market value of the real property securing
the loan exceeds the  principal amount of  the loan at the  time of issuance  or
acquisition,  as  the case  may be.  There  is no  assurance that  the treatment
described above is proper. Accordingly, Standard Certificateholders are urged to
consult their own tax  advisors concerning the effects  of such arrangements  on
the characterization of such Standard Certificateholder's investment for federal
income tax purposes.
 
  PREMIUM AND DISCOUNT
 
    Standard  Certificateholders are advised to  consult with their tax advisors
as to the federal  income tax treatment of  premium and discount arising  either
upon initial acquisition of Standard Certificates or thereafter.
 
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<PAGE>
    PREMIUM.   The treatment of premium incurred upon the purchase of a Standard
Certificate will  be  determined generally  as  described above  under  "Federal
Income   Tax   Consequences   for  REMIC   Certificates--Taxation   of  Residual
Certificates--Premium."
 
    ORIGINAL ISSUE DISCOUNT.  The original issue discount rules of Code Sections
1271 through 1275 will be applicable to a Standard 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
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 Proposed OID Regulations, such original issue discount could arise by
the charging of points by the originator  of the mortgages 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 on the Mortgage Loans.
 
    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,  in advance of  the cash attributable  to such income.
However, Code Section 1272  provides for a reduction  in the amount of  original
issue  discount  includible in  the income  of  a holder  of an  obligation that
acquires the obligation 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 Standard Certificateholder are purchased  at a price equal to the
then unpaid principal amount of such Mortgage Loans, no original issue  discount
attributable  to  the  difference  between  the  issue  price  and  the original
principal amount of  such Mortgage Loans  (I.E., points) will  be includible  by
such holder.
 
    MARKET  DISCOUNT.  Standard  Certificateholders also will  be subject to the
market discount rules to the extent that the conditions for application of those
sections are met. Market discount on  the Mortgage Loans will be determined  and
will  be reported  as ordinary  income generally  in the  manner described above
under "Federal  Income  Tax  Consequences for  REMIC  Certificates--Taxation  of
Residual Certificates--Market Discount."
 
  RECHARACTERIZATION OF SERVICING FEES
 
    If  the servicing fees paid to the Servicer were deemed to exceed reasonable
servicing compensation, the amount of  such excess would be nondeductible  under
Code  Section 162 or 212. In this  regard, there are no authoritative guidelines
for federal income  tax purposes as  to either the  maximum amount of  servicing
compensation that may be considered reasonable in the context of this or similar
transactions   or  whether,  in  the  case  of  the  Standard  Certificate,  the
reasonableness of  servicing compensation  should be  determined on  a  weighted
average  or  loan-by-loan basis.  If a  loan-by-loan  basis is  appropriate, the
likelihood that such amount would exceed reasonable servicing compensation as to
some of the Mortgage Loans would be increased. Recently issued Internal  Revenue
Service  guidance  indicates  that  a  servicing  fee  in  excess  of reasonable
compensation ("excess servicing") will  cause the Mortgage  Loans to be  treated
under  the  "stripped  bond"  rules. Such  guidance  provides  safe  harbors for
servicing deemed to be reasonable and requires taxpayers to demonstrate that the
value of servicing fees in excess of such amounts is not greater than the  value
of the services provided.
 
    Accordingly,  if  the  Internal  Revenue  Service's  approach  is  upheld, a
Servicer who receives a servicing fee in excess of such amounts would be  viewed
as  retaining an ownership interest in a portion of the interest payments on the
Mortgage Loans.  Under  the  rules  of Code  Section  1286,  the  separation  of
ownership  of the right  to receive some or  all of the  interest payments on an
obligation from the right to  receive some or all  of the principal payments  on
the  obligation would  result in treatment  of such Mortgage  Loans as "stripped
coupons" and "stripped bonds."  Subject to the DE  MINIMIS rule discussed  below
under  "--Stripped Certificates," each stripped bond or stripped coupon could be
considered for this purpose as a  non-interest bearing obligation issued on  the
date  of issue  of the  Standard Certificates,  and the  original issue discount
 
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<PAGE>
rules  of  the  Code  would  apply   to  the  holder  thereof.  While   Standard
Certificateholders would still be treated as owners of beneficial interests in a
grantor trust for federal income tax purposes, the corpus of such trust could be
viewed  as excluding the portion of the Mortgage Loans the ownership of which is
attributed to the Servicer, or  as including such portion  as a second class  of
equitable interest. Applicable Treasury regulations treat such an arrangement as
a  fixed investment trust, since the  multiple classes of trust interests should
be treated as merely facilitating direct investments in the trust assets and the
existence of  multiple classes  of  ownership interests  is incidental  to  that
purpose.  In general, such a recharacterization  should not have any significant
effect  upon  the   timing  or  amount   of  income  reported   by  a   Standard
Certificateholder,  except that the income reported  by a cash method holder may
be slightly  accelerated.  See  "Stripped  Certificates"  below  for  a  further
description  of the federal income tax  treatment of stripped bonds and stripped
coupons.
 
    In the alternative, the amount, if any, by which the servicing fees paid  to
the Servicer are deemed to exceed reasonable compensation for servicing could be
treated   as   deferred   payments   of   purchase   price   by   the   Standard
Certificateholders to  the Seller  to  purchase its  undivided interest  in  the
Mortgage  Loans. In  such event, the  present value of  such additional payments
might be included in  the Standard Certificateholder's  basis in such  undivided
interests  for  purposes of  determining  whether the  Standard  Certificate was
acquired at  a  discount, at  par,  or at  a  premium. Under  this  alternative,
Standard  Certificateholders may  also be entitled  to a  deduction for unstated
interest with respect to each deferred payment. The Internal Revenue Service may
take the position that  the specific statutory provisions  of Code Section  1286
described  above override the alternative  described in this paragraph. Standard
Certificateholders are advised to  consult their tax advisors  as to the  proper
treatment  of the amounts paid to the  Servicer as set forth herein as servicing
compensation or under either of the alternatives set forth above.
 
  SALE OR EXCHANGE OF STANDARD CERTIFICATES
 
    Upon  sale   or   exchange   of   a   Standard   Certificate,   a   Standard
Certificateholder  will recognize gain  or loss equal  to the difference between
the amount realized on the sale and its aggregate adjusted basis in the Mortgage
Loans and other assets represented by the Standard Certificate. In general,  the
aggregate  adjusted basis will  equal the Standard  Certificateholder's cost for
the Standard  Certificate, increased  by  the amount  of any  income  previously
reported with respect to the Standard Certificate and decreased by the amount of
any  losses previously reported with respect to the Standard Certificate and the
amount of  any distributions  received thereon.  Except as  provided above  with
respect  to  market  discount on  any  Mortgage  Loans, and  except  for certain
financial institutions subject  to the  provisions of Code  Section 582(c),  any
such  gain or loss would be capital gain or loss if the Standard Certificate was
held as a capital asset. The preferential rates applicable to long-term  capital
gains  were eliminated by the  Tax Reform Act of 1986,  but were restored by the
Revenue Reconciliation Act of 1990 with respect to certain individuals.
 
STRIPPED CERTIFICATES
 
  GENERAL
 
    Pursuant to Code Section 1286, the  separation of ownership of the right  to
receive some or all of the principal payments on an obligation from ownership of
the  right  to receive  some  or all  of the  interest  payments results  in the
creation of "stripped bonds"  with respect to  principal payments and  "stripped
coupons"  with respect  to interest payments.  For purposes  of this discussion,
Certificates that are subject  to those rules will  be referred to as  "Stripped
Certificates." The Certificates will be subject to those rules if (i) the Seller
or  any  of its  affiliates  retains (for  its own  account  or for  purposes of
resale), in the form of Fixed Retained Yield or otherwise, an ownership interest
in a portion of the  payments on the Mortgage Loans,  (ii) the Seller or any  of
its  affiliates is treated as having an ownership interest in the Mortgage Loans
to the  extent it  is paid  (or  retains) servicing  compensation in  an  amount
greater  than  reasonable consideration  for servicing  the Mortgage  Loans (see
"Standard Certificates--Recharacterization of Servicing Fees" above), and  (iii)
a  Class  of  Certificates are  issued  in  two or  more  Classes  or Subclasses
representing the right to non-pro-rata percentages of the interest and principal
payments on the Mortgage Loans.
 
                                       87
<PAGE>
    In general, a  holder of a  Stripped Certificate will  be considered to  own
"stripped  bonds" with respect to its pro rata  share of all or a portion of the
principal payments on each Mortgage Loan and/or "stripped coupons" with  respect
to  its pro  rata share of  all or  a portion of  the interest  payments on each
Mortgage Loan,  including  the Stripped  Certificate's  allocable share  of  the
servicing  fees paid  to the  Servicer, to the  extent that  such fees represent
reasonable compensation  for  services  rendered.  See  discussion  above  under
"Standard  Certificates--Recharacterization of Servicing Fees." For this purpose
the servicing fees will be allocated to the Stripped Certificates in  proportion
to  the  respective  offering price  of  each  Class (or  Subclass)  of Stripped
Certificates. The holder of a Stripped Certificate generally will be entitled to
a deduction each year in respect of the servicing fees, as described above under
"Standard Certificates-- General," subject to the limitation described therein.
 
    Code Section 1286 treats a stripped  bond or a stripped coupon generally  as
an  obligation  issued at  an  original issue  discount  on the  date  that such
stripped interest is purchased. Although the treatment of Stripped  Certificates
for  federal income tax purposes is not  clear in certain respects at this time,
particularly where  such Stripped  Certificates  are issued  with respect  to  a
Mortgage  Pool  containing variable-rate  Mortgage  Loans, the  Seller  has been
advised by counsel that (i) the Trust Estate will be treated as a grantor  trust
under  subpart E, Part I of  subchapter J of the Code  and not as an association
taxable as a corporation or a "taxable mortgage pool" within the meaning of Code
Section 7701(i),  and (ii)  each Stripped  Certificate should  be treated  as  a
single  installment  obligation  for  purposes  of  calculating  original  issue
discount and  gain  or loss  on  disposition. This  treatment  is based  on  the
interrelationship of Code Section 1286, Code Sections 1272 through 1275, and the
Proposed  OID  Regulations.  While  under Code  Section  1286  computations with
respect to Stripped  Certificates arguably  should be made  in one  of the  ways
described  below under "Taxation  of Stripped Certificates--Possible Alternative
Characterizations," the Proposed OID Regulations state, in general, that two  or
more debt instruments issued by a single issuer to a single investor in a single
transaction  should be treated as a single debt instrument. Accordingly, for OID
purposes, all payments  on any  Stripped Certificates should  be aggregated  and
treated  as though they were  made on a single  debt instrument. The Pooling and
Servicing  Agreement  will  require  that  the  Trustee  make  and  report   all
computations  described below using this  aggregate approach, unless substantial
legal authority requires otherwise.
 
    Furthermore, Treasury  regulations  issued  December 28,  1992  provide  for
treatment  of a Stripped Certificate  as a single debt  instrument issued on the
date it is originated for purposes  of calculating any original issue  discount.
In  addition, under these regulations, a  Stripped Certificate that represents a
right to payments of both interest and principal may be viewed either as  issued
with  original issue discount or  market discount (as described  below), at a DE
MINIMIS original issue discount,  or, presumably, at  a premium. This  treatment
indicates  that the interest  component of such a  Stripped Certificate would be
treated as  qualified  stated  interest  under  the  Proposed  OID  Regulations.
Further,  these final regulations provide that  the purchaser of such a Stripped
Certificate will be  required to  account for  any discount  as market  discount
rather  than original  issue discount  if either  (i) the  initial discount with
respect to the  Stripped Certificate was  treated as zero  under the DE  MINIMIS
rule, or (ii) no more than 100 basis points in excess of reasonable servicing is
stripped  off  the related  Mortgage Loans.  Any such  market discount  would be
reportable as described above under  "Federal Income Tax Consequences for  REMIC
Certificates--Taxation of Regular Certificates--Market Discount," without regard
to  the DE  MINIMIS rule  therein. Pursuant  to Revenue  Procedure 91-49, issued
August 8, 1991,  investors using a  method of accounting  inconsistent with  the
above  treatment must change their method  of accounting and request the consent
to the Internal Revenue Service to such change on a statement attached to  their
first  timely federal income  tax returned for  the first tax  year ending after
August 8, 1991.
 
  STATUS OF STRIPPED CERTIFICATES
 
    No specific  legal authority  exists  as to  whether  the character  of  the
Stripped Certificates, for federal income tax purposes, will be the same as that
of  the Mortgage Loans. Although  the issue is not  free from doubt, counsel has
advised the Seller that Stripped Certificates owned by applicable holders should
be
 
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<PAGE>
considered to represent "qualifying real  property loans" within the meaning  of
Code  Section 593(d)(1), "real estate assets" within the meaning of Code Section
856(c)(5)(A), "obligation[s] . .  . principally secured by  an interest in  real
property" within the meaning of Code Section 860G(a)(3)(A), and "loans...secured
by   an  interest  in  real  property"   within  the  meaning  of  Code  Section
7701(a)(19)(C)(v), and  interest  (including  original  issue  discount)  income
attributable   to  Stripped  Certificates  should  be  considered  to  represent
"interest on  obligations secured  by  mortgages on  real property"  within  the
meaning  of Code Section  856(c)(3)(B), provided that in  each case the Mortgage
Loans and  interest on  such  Mortgage Loans  qualify  for such  treatment.  The
application  of  such  Code  provisions  to  Buy-Down  Loans  is  uncertain. See
"Standard Certificates--Tax Status" above.
 
  TAXATION OF STRIPPED CERTIFICATES
 
    ORIGINAL ISSUE DISCOUNT.   Except as described  above under "General,"  each
Stripped Certificate will be considered to have been issued at an original issue
discount  for federal income tax purposes.  Original issue discount with respect
to a Stripped Certificate must be included in ordinary income as it accrues,  in
accordance  with  a  constant  interest  method  that  takes  into  account  the
compounding of  interest,  which  may  be  prior to  the  receipt  of  the  cash
attributable  to such income. Based in part  on the Proposed OID Regulations and
the amendments to the original issue discount  sections of the Code made by  the
1986  Act, counsel  has advised  the Seller  that the  amount of  original issue
discount required  to be  included  in the  income of  a  holder of  a  Stripped
Certificate  (referred to in this  discussion as a "Stripped Certificateholder")
in any taxable year likely will  be computed generally as described above  under
"Federal  Income Tax  Consequences for  REMIC Certificates--Taxation  of Regular
Certificates--Original Issue Discount" and
"--Variable Rate Regular Certificates." However, with the apparent exception  of
a  Stripped  Certificate  issued  with DE  MINIMIS  original  issue  discount as
described above under "General," the issue price of a Stripped Certificate  will
be  the purchase price  paid by each  holder thereof, and  the stated redemption
price at maturity will include the aggregate  amount of the payments to be  made
on the Stripped Certificate to such Stripped Certificateholder, presumably under
the Prepayment Assumption.
 
    If  the Mortgage Loans  prepay at a  rate either faster  or slower than that
under the Prepayment Assumption,  a Stripped Certificateholder's recognition  of
original issue discount will be either accelerated or decelerated and the amount
of  such original issue discount will be either increased or decreased depending
on the  relative interests  in  principal and  interest  on each  Mortgage  Loan
represented by such Stripped Certificateholder's Stripped Certificate. While the
matter  is not free from  doubt, the holder of  a Stripped Certificate should be
entitled in the year that it  becomes certain (assuming no further  prepayments)
that  the  holder will  not  recover a  portion of  its  adjusted basis  in such
Stripped Certificate to  recognize an  ordinary loss  equal to  such portion  of
unrecoverable basis.
 
    As  an alternative to the method described  above, the fact that some or all
of the interest payments with respect  to the Stripped Certificates will not  be
made  if the Mortgage  Loans are prepaid  could lead to  the interpretation that
such interest payments are "contingent" within the meaning of proposed  Treasury
regulations  issued April 8, 1986 (the "Prior Proposed OID Regulations"). If the
rules of  the Prior  Proposed OID  Regulations relating  to contingent  payments
apply,  treatment of a Stripped Certificate  under such rules depends on whether
the aggregate amount of principal payments, if  any, to be made on the  Stripped
Certificate  is less  than or  greater than  its issue  price. If  the aggregate
principal payments are greater than or  equal to the issue price, the  principal
payments would be treated as a separate installment obligation issued at a price
equal to the purchase price for the Stripped Certificate. In such case, original
issue  discount would be calculated and accrued under the method described above
without consideration  of the  interest payments  with respect  to the  Stripped
Certificate.  Such  payments of  interest would  be  includible in  the Stripped
Certificateholder's gross income in the taxable year in which the amounts become
fixed. If the aggregate amount of principal payments to be made on the  Stripped
Certificate  is less than  its issue price,  each payment of  principal would be
treated as a  return of  basis. Each  payment of  interest would  be treated  as
includible  in gross income to  the extent of the  applicable Federal rate under
Code Section 1274(d), as
 
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<PAGE>
applied to  the  adjusted  basis  of the  Stripped  Certificate,  while  amounts
received  in excess of the  applicable Federal rate, as  applied to the adjusted
basis of the Stripped Certificate, would  be characterized as a return of  basis
until  the  total amount  of  interest payments  treated  as a  return  of basis
equalled the excess of  the purchase price over  the aggregate stated  principal
payments.  Any  additional  interest  payments thereafter  would  be  treated as
ordinary income. While not free from doubt, counsel for the Seller believes that
uncertainty as to the payment of interest arising as a result of the possibility
of prepayment of  the Mortgage  Loans should  not cause  the contingent  payment
rules  under the Proposed OID  Regulations to apply to  interest with respect to
the Stripped Certificates.
 
    SALE OR EXCHANGE OF STRIPPED CERTIFICATES.   Sale or exchange of a  Stripped
Certificate  prior to  its maturity  will result  in gain  or loss  equal to the
difference,  if   any,   between   the  amount   received   and   the   Stripped
Certificateholder's  adjusted basis  in such Stripped  Certificate, as described
above under "Federal Income Tax Consequences for REMIC Certificates--Taxation of
Regular Certificates--Sale or Exchange of  Regular Certificates." To the  extent
that  a  subsequent  purchaser's purchase  price  is exceeded  by  the remaining
payments on  the  Stripped  Certificates,  such  subsequent  purchaser  will  be
required  for federal income tax purposes to accrue and report such excess as if
it were original issue discount in the  manner described above. It is not  clear
for  this purpose whether the assumed prepayment rate  that is to be used in the
case  of  a   Stripped  Certificateholder  other   than  an  original   Stripped
Certificateholder should be the Prepayment Assumption or a new rate based on the
circumstances at the date of subsequent purchase.
 
    PURCHASE  OF MORE THAN ONE CLASS OF STRIPPED CERTIFICATES.  When an investor
purchases more than one Class of Stripped Certificates, it is currently  unclear
whether  for federal income  tax purposes such  Classes of Stripped Certificates
should be treated separately or aggregated  for purposes of the rules  described
above.
 
    POSSIBLE  ALTERNATIVE  CHARACTERIZATIONS.    The  characterizations  of  the
Stripped Certificates discussed above are not the only possible  interpretations
of  the applicable Code provisions.  For example, the Stripped Certificateholder
may be treated as the owner of (i) one installment obligation consisting of such
Stripped Certificate's pro rata share of the payments attributable to  principal
on  each Mortgage  Loan and a  second installment obligation  consisting of such
Stripped Certificate's pro rata share  of the payments attributable to  interest
on  each Mortgage Loan, (ii) as many stripped bonds or stripped coupons as there
are scheduled payments of  principal and/or interest on  each Mortgage Loan,  or
(iii) a separate installment obligation for each Mortgage Loan, representing the
Stripped  Certificate's pro rata share of  payments of principal and/or interest
to be  made with  respect thereto.  Alternatively,  the holder  of one  or  more
Classes  of Stripped  Certificates may  be treated  as the  owner of  a pro rata
fractional undivided interest  in each  Mortgage Loan  to the  extent that  such
Stripped  Certificate,  or Classes  of Stripped  Certificates in  the aggregate,
represent the  same pro  rata portion  of principal  and interest  on each  such
Mortgage  Loan, and  a stripped bond  or stripped  coupon (as the  case may be),
treated as an installment obligation or contingent payment obligation, as to the
remainder. Final  regulations issued  on December  28, 1992  regarding  original
issue  discount on stripped obligations  make the foregoing interpretations less
likely to be applicable. The preamble to those regulations states that they  are
premised  on  the assumption  that an  aggregation  approach is  appropriate for
determining whether  original issue  discount  on a  stripped bond  or  stripped
coupon is DE MINIMIS, and solicits comments on appropriate rules for aggregating
stripped bonds and stripped coupons under Code Section 1286.
 
    Because of these possible varying characterizations of Stripped Certificates
and   the  resultant   differing  treatment  of   income  recognition,  Stripped
Certificateholders are urged  to consult  their own tax  advisors regarding  the
proper treatment of Stripped Certificates for federal income tax purposes.
 
REPORTING REQUIREMENTS AND BACKUP WITHHOLDING
 
    The  Trustee will furnish,  within a reasonable  time after the  end of each
calendar year, to each Standard Certificateholder or Stripped  Certificateholder
at    any   time   during    such   year,   such    information   (prepared   on
 
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<PAGE>
the basis described above) as the Trustee deems to be necessary or desirable  to
enable such Certificateholders to prepare their federal income tax returns. Such
information  will  include  the amount  of  original issue  discount  accrued on
Certificates held by  persons other  than Certificateholders  exempted from  the
reporting  requirements. The amount  required to be reported  by the Trustee may
not be equal  to the proper  amount of  original issue discount  required to  be
reported  as  taxable  income by  a  Certificateholder, other  than  an original
Certificateholder. The  Trustee  will also  file  such original  issue  discount
information  with the Internal Revenue Service.  If a Certificateholder fails to
supply an accurate  taxpayer identification number  or if the  Secretary of  the
Treasury  determines that a Certificateholder has  not reported all interest and
dividend income  required to  be shown  on his  federal income  tax return,  31%
backup  withholding may  be required in  respect of any  reportable payments, as
described   above   under   "Federal   Income   Tax   Consequences   for   REMIC
Certificates--Backup Withholding."
 
TAXATION OF CERTAIN FOREIGN INVESTORS
 
    To  the extent that a Standard Certificate or Stripped Certificate evidences
ownership in Mortgage Loans that are issued on or before July 18, 1984, interest
or original issue  discount paid by  the person required  to withhold tax  under
Code  Section 1441 or 1442 to nonresident aliens, foreign corporations, or other
non-U.S. persons ("foreign  persons") generally  will be subject  to 30%  United
States withholding tax, or such lower rate as may be provided for interest by an
applicable  tax  treaty.  Accrued  original  issue  discount  recognized  by the
Standard Certificateholder or Stripped Certificateholder on the sale or exchange
of such a Certificate  also will be  subject to federal income  tax at the  same
rate.
 
    Treasury  regulations provide that interest  or original issue discount paid
by the  Trustee  or other  withholding  agent  to a  foreign  person  evidencing
ownership  interest  in  Mortgage  Loans  issued after  July  18,  1984  will be
"portfolio interest" and will be treated in the manner, and such persons will be
subject to the same certification  requirements, described above under  "Federal
Income  Tax  Consequences for  REMIC  Certificates--Taxation of  Certain Foreign
Investors--Regular Certificates."
 
                              ERISA CONSIDERATIONS
 
GENERAL
 
    The Employee Retirement Income Security  Act of 1974, as amended  ("ERISA"),
imposes certain requirements on those employee benefit plans to which it applies
("Plans")  and on those persons who are  fiduciaries with respect to such Plans.
The following  is  a  general  discussion  of  such  requirements,  and  certain
applicable  exceptions to and administrative  exemptions from such requirements.
For purposes of this discussion, a  person investing on behalf of an  individual
retirement  account established under Code Section 408 (an "IRA") is regarded as
a fiduciary and the IRA as a Plan.
 
    Before purchasing any Certificates, a Plan fiduciary should consult with its
counsel and  determine whether  there exists  any prohibition  to such  purchase
under  the requirements of ERISA, whether prohibited transaction exemptions such
as PTE  83-1 or  any individual  administrative exemption  (as described  below)
applies, including whether the appropriate conditions set forth therein would be
met,  or whether any  statutory prohibited transaction  exemption is applicable,
and further should consult the applicable Prospectus Supplement relating to such
Series of Certificates.
 
CERTAIN REQUIREMENTS UNDER ERISA
 
    GENERAL.  In  accordance with  ERISA's general  fiduciary standards,  before
investing in a Certificate a Plan fiduciary should determine whether to do so is
permitted  under the governing Plan instruments  and is appropriate for the Plan
in view of its overall investment policy and the composition and diversification
of its  portfolio.  A  Plan  fiduciary  should  especially  consider  the  ERISA
requirement  of investment  prudence and  the sensitivity  of the  return on the
Certificates to the rate of principal repayments (including prepayments) on  the
Mortgage Loans, as discussed in "Prepayment and Yield Considerations" herein.
 
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<PAGE>
    PARTIES  IN INTEREST/DISQUALIFIED PERSONS.   Other provisions  of ERISA (and
corresponding provisions of  the Code) prohibit  certain transactions  involving
the assets of a Plan and persons who have certain specified relationships to the
Plan   (so-called  "parties  in  interest"  within   the  meaning  of  ERISA  or
"disqualified persons" within the meaning of the Code). The Seller, the Servicer
or the Trustee or certain affiliates thereof might be considered or might become
"parties in interest" or "disqualified persons"  with respect to a Plan. If  so,
the acquisition or holding of Certificates by or on behalf of such Plan could be
considered  to give  rise to  a "prohibited  transaction" within  the meaning of
ERISA and the Code  unless an administrative exemption  described below or  some
other exemption is available.
 
    Special  caution should be exercised before the assets of a Plan are used to
purchase a Certificate if, with respect to such assets, the Seller, the Servicer
or the Trustee  or an affiliate  thereof either: (a)  has investment  discretion
with respect to the investment of such assets of such Plan; or (b) has authority
or responsibility to give, or regularly gives, investment advice with respect to
such  assets for a fee  and pursuant to an  agreement or understanding that such
advice will serve as  a primary basis for  investment decisions with respect  to
such  assets and  that such  advice will be  based on  the particular investment
needs of the Plan.
 
    DELEGATION OF FIDUCIARY DUTY.   Further, if the  assets included in a  Trust
Estate  were deemed  to constitute  Plan assets,  it is  possible that  a Plan's
investment in the Certificates might be deemed to constitute a delegation, under
ERISA, of the duty to manage Plan assets by the fiduciary deciding to invest  in
the  Certificates, and  certain transactions  involved in  the operation  of the
Trust Estate might be deemed  to constitute prohibited transactions under  ERISA
and the Code. Neither ERISA nor the Code define the term "plan assets."
 
    The  U.S. Department of Labor (the "Department") has issued regulations (the
"Regulations") concerning whether  or not  a Plan's  assets would  be deemed  to
include  an interest  in the  underlying assets  of an  entity (such  as a Trust
Estate) for  purposes of  the  reporting and  disclosure and  general  fiduciary
responsibility  provisions of ERISA,  as well as  for the prohibited transaction
provisions of ERISA  and the  Code, if the  Plan acquires  an "equity  interest"
(such as a Certificate) in such an entity.
 
    Certain  exceptions  are provided  in the  Regulations whereby  an investing
Plan's assets would be deemed merely to include its interest in the Certificates
instead of being deemed to include an interest in the assets of a Trust  Estate.
However,  it cannot  be predicted  in advance  nor can  there be  any continuing
assurance whether such exceptions may be  met, because of the factual nature  of
certain  of the  rules set  forth in  the Regulations.  For example,  one of the
exceptions in the  Regulations states that  the underlying assets  of an  entity
will  not be  considered "plan  assets" if  less than  25% of  the value  of all
classes of equity  interests are  held by  "benefit plan  investors," which  are
defined  as Plans, IRAs,  and employee benefit  plans not subject  to ERISA (for
example, governmental plans),  but this  exception is  tested immediately  after
each  acquisition  of an  equity  interest in  the  entity whether  upon initial
issuance or in the secondary market.
 
ADMINISTRATIVE EXEMPTIONS
 
    INDIVIDUAL   ADMINISTRATIVE   EXEMPTIONS.       Several   underwriters    of
mortgage-backed  securities  have  applied  for  and  obtained  ERISA prohibited
transaction exemptions (each,  an "Underwriter's Exemption")  which are in  some
respects  broader than  Prohibited Transaction  Class Exemption  83-1 (described
below). Such  exemptions can  only apply  to mortgage-backed  securities  which,
among  other conditions,  are sold  in an  offering with  respect to  which such
underwriter serves as the  sole or a  managing underwriter, or  as a selling  or
placement  agent. If  such an Underwriter's  Exemption might be  applicable to a
Series of Certificates,  the related  Prospectus Supplement will  refer to  such
possibility.
 
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<PAGE>
    Among  the conditions that must be  satisfied for an Underwriter's Exemption
to apply are the following:
 
       (1) The acquisition of 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 interests  evidenced by Certificates  acquired by the
           Plan are not subordinated  to the rights  and interests evidenced  by
    other Certificates of the Trust Estate;
 
       (3) The  Certificates acquired by the Plan  have received a rating at the
           time of such  acquisition that is  one of the  three highest  generic
    rating  categories from either Standard & Poors Corporation ("S&P"), Moody's
    Investors Service, Inc.  ("Moody's"), Duff  & Phelps 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 (as defined below);
 
       (5) The sum of all  payments made to and  retained by the underwriter  in
           connection  with the distribution of 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 Mortgage Loans to the Trust Estate represents not more than the  fair
    market  value of such  Mortgage 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 Pooling and
    Servicing Agreement and reimbursement  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.
 
    The Trust Estate must also meet the following requirements:
 
              (i)
               the assets of the Trust Estate  must consist solely of assets  of
               the type that have been included in other investment pools in the
       marketplace;
 
             (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 the
       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 the Certificates.
 
    If  the conditions to an  Underwriter's Exemption are met,  whether or not a
Plan's assets would be deemed to  include an ownership interest in the  Mortgage
Loans   in  a  mortgage  pool,  the  acquisition,  holding  and  resale  of  the
Certificates by Plans would be exempt from the prohibited transaction provisions
of ERISA and the Code.
 
    Moreover,  an  Underwriter's  Exemption  can  provide  relief  from  certain
self-dealing/conflict  of interest prohibited  transactions that may  occur if a
Plan fiduciary causes a Plan to acquire Certificates in a Trust Estate in  which
the fiduciary (or its affiliate) is an obligor on the Mortgage Loans held in the
Trust  Estate provided  that, among  other requirements: (i)  in the  case of an
acquisition in connection with  the initial issuance  of Certificates, at  least
fifty  percent of  each class  of Certificates in  which Plans  have invested is
acquired by  persons independent  of the  Restricted Group  and at  least  fifty
percent  of the aggregate  interest in the  Trust Estate is  acquired by persons
independent of the Restricted Group (as defined below); (ii) such fiduciary  (or
its  affiliate) is an obligor  with respect to five percent  or less of the fair
market value of  the Mortgage  Loans contained in  the Trust  Estate; (iii)  the
Plan's  investment  in Certificates  of any  Class  does not  exceed twenty-five
percent of all of the Certificates of that Class outstanding at the time of  the
acquisition
 
                                       93
<PAGE>
and  (iv) immediately after the acquisition  no more than twenty-five percent of
the assets of  the Plan with  respect to which  such person is  a fiduciary  are
invested  in  Certificates  representing  an  interest  in  one  or  more trusts
containing assets sold or served by the same entity.
 
    An Underwriter's Exemption does not apply to Plans sponsored by the  Seller,
the  underwriter specified in the applicable Prospectus Supplement, the Trustee,
the Servicer, any obligor with respect  to Mortgage Loans included in the  Trust
Estate  constituting  more  than  five  percent  of  the  aggregate  unamortized
principal balance of the assets  in the Trust Estate,  or any affiliate of  such
parties (the "Restricted Group").
 
    PTE   83-1.    Prohibited  Transaction  Class  Exemption  83-1  for  Certain
Transactions Involving  Mortgage Pool  Investment  Trusts ("PTE  83-1")  permits
certain  transactions  involving the  creation,  maintenance and  termination of
certain residential mortgage pools  and the acquisition  and holding of  certain
residential mortgage pool pass-through certificates by Plans, whether or not the
Plan's  assets would be deemed to include an ownership interest in the mortgages
in such mortgage pools, and whether or not such transactions would otherwise  be
prohibited under ERISA.
 
    The  term "mortgage pool pass-through certificate" is defined in PTE 83-1 as
"a certificate  representing a  beneficial undivided  fractional interest  in  a
mortgage  pool and  entitling the holder  of such a  certificate to pass-through
payment of principal and interest from the pooled mortgage loans, less any  fees
retained  by the pool sponsor."  It appears that, for  purposes of PTE 83-1, the
term "mortgage pool pass-through certificate" would include Certificates  issued
in  a single Class or in multiple Classes that evidence the beneficial ownership
of both  a specified  percentage of  future interest  payments (after  permitted
deductions)  and a specified percentage of  future principal payments on a Trust
Estate.
 
    However, it appears that PTE  83-1 does or might  not apply to the  purchase
and holding of (a) Certificates that evidence the beneficial ownership only of a
specified percentage of future interest payments (after permitted deductions) on
a Trust Estate or only of a specified percentage of future principal payments on
a Trust Estate, (b) Residual Certificates, (c) Certificates evidencing ownership
interests in a Trust Estate which includes Mortgage Loans secured by multifamily
residential  properties or shares issued by cooperative housing corporations, or
(d) Certificates which are subordinated to other Classes of Certificates of such
Series. Accordingly, unless exemptive relief other than PTE 83-1 applies,  Plans
should not purchase any such Certificates.
 
    PTE  83-1 sets forth  "general conditions" and  "specific conditions" to its
applicability.  Section  II  of  PTE  83-1  sets  forth  the  following  general
conditions  to the application of the exemption: (i) the maintenance of a system
of insurance or other protection for  the pooled mortgage loans or the  property
securing  such loans, and for indemnifying certificateholders against reductions
in pass-through payments due  to property damage or  defaults in loan  payments;
(ii)  the  existence of  a pool  trustee who  is  not an  affiliate of  the pool
sponsor; and  (iii) a  requirement that  the sum  of all  payments made  to  and
retained  by the pool sponsor, and all funds  inuring to the benefit of the pool
sponsor as a result of the  administration of the mortgage pool, must  represent
not  more  than  adequate  consideration for  selling  the  mortgage  loans plus
reasonable compensation for services provided by  the pool sponsor to the  pool.
The  system of  insurance or  protection referred  to in  clause (i)  above must
provide such protection and  indemnification up to an  amount not less than  the
greater  of one percent of the aggregate  unpaid principal balance of the pooled
mortgages or the unpaid principal balance  of the largest mortgage in the  pool.
It  should be noted that in promulgating PTE 83-1 (and a predecessor exemption),
the Department did not  have under its consideration  interests in pools of  the
exact nature as some of the Certificates described herein.
 
EXEMPT PLANS
 
    Employee  benefit plans which are governmental  plans (as defined in Section
3(32) of ERISA), and certain church plans (as defined in Section 3(33) of ERISA)
are not subject to ERISA requirements and  assets of such plans may be  invested
in  Certificates without regard to the  ERISA considerations described above but
such plans may  be subject  to the provisions  of other  applicable federal  and
state law.
 
                                       94
<PAGE>
UNRELATED BUSINESS TAXABLE INCOME--RESIDUAL CERTIFICATES
 
    The  purchase  of  a  Residual  Certificate  by  any  employee  benefit plan
qualified under Code Section 401(a) and exempt from taxation under Code  Section
501(a),  including most  varieties of ERISA  Plans, may give  rise to "unrelated
business taxable  income"  as  described  in Code  Sections  511-515  and  860E.
Further,   prior  to  the  purchase  of  Residual  Certificates,  a  prospective
transferee may be required to  provide an affidavit to  a transferor that it  is
not,  nor is it purchasing a Residual  Certificate on behalf of, a "Disqualified
Organization," which term as defined above includes certain tax-exempt  entities
not subject to Code Section 511 such as certain governmental plans, as discussed
above under the caption "Certain Federal Income Tax Consequences--Federal Income
Tax Consequences for REMIC Certificates--Taxation of Residual
Certificates--Tax-Related Restrictions on Transfer of Residual
Certificates--Disqualified Organizations."
 
    DUE  TO THE COMPLEXITY OF THESE RULES AND THE PENALTIES IMPOSED UPON PERSONS
INVOLVED IN PROHIBITED TRANSACTIONS, IT IS PARTICULARLY IMPORTANT THAT POTENTIAL
INVESTORS WHO  ARE PLAN  FIDUCIARIES CONSULT  WITH THEIR  COUNSEL REGARDING  THE
CONSEQUENCES UNDER ERISA OF THEIR ACQUISITION AND OWNERSHIP OF CERTIFICATES.
 
    THE  SALE OF CERTIFICATES TO A PLAN IS IN NO RESPECT A REPRESENTATION BY THE
SELLER OR THE  APPLICABLE UNDERWRITER  THAT THIS INVESTMENT  MEETS ALL  RELEVANT
LEGAL  REQUIREMENTS  WITH  RESPECT  TO INVESTMENTS  BY  PLANS  GENERALLY  OR ANY
PARTICULAR PLAN, OR THAT THIS INVESTMENT  IS APPROPRIATE FOR PLANS GENERALLY  OR
ANY PARTICULAR PLAN.
 
                                LEGAL INVESTMENT
 
    Standard Certificates which are not rated, as discussed below under "Rating"
will  not constitute "mortgage related securities" for purposes of the Secondary
Mortgage  Market  Enhancement  Act  of  1984  (the  "Enhancement  Act").  Unless
otherwise specified in the related Prospectus Supplement, the Certificates other
than  Residual  Certificates  (and if  so  specified in  the  related Prospectus
Supplement,  the  Residual  Certificates)  will  constitute  "mortgage   related
securities"  for  purposes of  the Enhancement  Act  and as  such will  be legal
investments  for  persons,  trusts,  corporations,  partnerships,  associations,
business   trusts  and   business  entities   (including  but   not  limited  to
state-chartered savings banks, commercial  banks, savings and loan  associations
and  insurance  companies, as  well as  trustees  and state  government employee
retirement systems) 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
that, under applicable law, obligations issued by or guaranteed as to  principal
and  interest  by the  United States  or any  agency or  instrumentality thereof
constitute legal investments for such entities. Pursuant to the Enhancement Act,
a number of states enacted legislation, on or before the October 3, 1991 cut-off
for such enactments, limiting to varying extents the ability of certain entities
(in particular insurance companies) to invest in mortgage related securities, in
most cases by  requiring the  affected investors  to rely  solely upon  existing
state  law, and not the Enhancement  Act. Accordingly, the investors affected by
such legislation will be  authorized to invest in  the Certificates only to  the
extent provided in such legislation.
 
    The Enhancement Act 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
with  mortgage related  securities without  limitation as  to the  percentage of
their assets represented thereby, federal  credit unions may invest in  mortgage
related  securities, and national banks may purchase mortgage related securities
for their own account without regard to the limitations generally applicable  to
investment  securities set forth  in 12 U.S.C. Section  24 (Seventh), subject in
each case to such regulations as the applicable federal regulatory authority may
prescribe. In  this connection,  federal credit  unions should  review  National
Credit  Union  Administration 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
 
                                       95
<PAGE>
investment  decisions for mortgage related securities. The National Credit Union
Administration has  adopted rules,  effective December  2, 1991,  that  prohibit
federal credit unions from investing in certain mortgage related securities such
as the Residual Certificates and the Stripped Certificates, except under limited
circumstances.
 
    All  depository institutions  considering an investment  in the Certificates
should review the "Supervisory Policy Statement on Securities Activities"  dated
January  28, 1992 (the "Policy Statement") of the Federal Financial Institutions
Examination Council. The Policy Statement, which  has been adopted by the  Board
of  Governors  of  the Federal  Reserve  System, the  Federal  Deposit Insurance
Corporation,  the  Comptroller  of  the  Currency  and  the  Office  of   Thrift
Supervision,  effective  February 10,  1992, and  by  the National  Credit Union
Administration (with certain modifications), effective June 26, 1992,  prohibits
depository   institutions   from  investing   in  certain   "high-risk  mortgage
securities" (including  securities such  as certain  series and  classes of  the
Certificates),  except  under  limited  circumstances,  and  sets  forth certain
investment practices deemed to be unsuitable for regulated institutions.
 
    Institutions whose  investment  activities  are  subject  to  regulation  by
federal  or state authorities should review policies and guidelines adopted from
time to time by such authorities  before purchasing any of the Certificates,  as
certain  Series or Classes (in particular,  Stripped Certificates) may be deemed
unsuitable investments, or may otherwise  be restricted, under such policies  or
guidelines (in certain instances irrespective of the Enhancement Act).
 
    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, provisions which
may  restrict   or   prohibit   investment   in   securities   which   are   not
"interest-bearing"  or  "income-paying," and,  with  regard to  any Certificates
issued in book-entry form, provisions which may restrict or prohibit investments
in securities which are issued in book-entry form.
 
    All investors should consult  with their own  legal advisors in  determining
whether  and to  what extent the  Certificates constitute  legal investments for
such investors.
 
                              PLAN OF DISTRIBUTION
 
    The Certificates are being offered hereby  in Series through one or more  of
the  methods  described below.  The  applicable Prospectus  Supplement  for each
Series will describe the method of  offering being utilized for that Series  and
will  state the public offering or purchase  price of each Class of Certificates
of such Series, or the method by which  such price is to be determined, and  the
net proceeds to the Seller from such sale.
 
    The  Certificates will be offered through the following methods from time to
time and  offerings may  be made  concurrently through  more than  one of  these
methods  or  an offering  of a  particular  Series of  Certificates may  be made
through a combination of two or more of these methods:
 
       1.  By negotiated firm commitment underwriting and public re-offering  by
           underwriters specified in the applicable Prospectus Supplement;
 
       2.  By placements by the Seller with investors through dealers; and
 
       3.  By direct placements by the Seller with investors.
 
    If  underwriters are used  in a sale of  any Certificates, such Certificates
will be acquired by  the underwriters for  their own account  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  to  be
determined  at the  time of  sale or  at the  time of  commitment therefor. Firm
commitment underwriting  and  public  reoffering by  underwriters  may  be  done
through  underwriting syndicates or through one  or more firms acting alone. The
specific managing underwriter or underwriters, if any, with respect to the offer
and sale of a particular Series
 
                                       96
<PAGE>
of Certificates will  be set  forth on the  cover of  the Prospectus  Supplement
applicable to such Series and the members of the underwriting syndicate, if any,
will  be named  in such  Prospectus Supplement.  The Prospectus  Supplement will
describe any discounts and commissions  to be allowed or  paid by the Seller  to
the underwriters, any other items constituting underwriting compensation and any
discounts  and commissions to be allowed or paid to the dealers. The obligations
of the  underwriters  will  be  subject to  certain  conditions  precedent.  The
underwriters  with  respect to  a  sale of  any  Class of  Certificates  will be
obligated to purchase all such Certificates if any are purchased. The Seller and
PHMC  will  indemnify   the  applicable  underwriters   against  certain   civil
liabilities,  including liabilities under the Securities Act of 1933, as amended
(the "Act").
 
    The Prospectus Supplement with respect to any Series of Certificates offered
other than through underwriters will contain information regarding the nature of
such offering  and any  agreements to  be entered  into between  the Seller  and
dealers and/or the Seller and purchasers of Certificates of such Series.
 
    Purchasers  of Certificates, including dealers,  may, depending on the facts
and circumstances of such purchases, be  deemed to be "underwriters" within  the
meaning   of  the  Act  in  connection  with  reoffers  and  sales  by  them  of
Certificates. Certificateholders  should consult  with their  legal advisors  in
this regard prior to any such reoffer or sale.
 
    If   specified  in  the  Prospectus  Supplement  relating  to  a  Series  of
Certificates, the Seller or  any affiliate thereof may  purchase some or all  of
one  or more  Classes of  Certificates of  such Series  from the  underwriter or
underwriters at a price  specified or described  in such Prospectus  Supplement.
Such purchaser may thereafter from time to time offer and sell, pursuant to this
Prospectus,  some or all of such Certificates so purchased directly, through one
or more  underwriters to  be designated  at the  time of  the offering  of  such
Certificates  or through dealers acting as agent and/or principal. Such offering
may be restricted in  the matter specified in  such Prospectus Supplement.  Such
transactions may be effected at market prices prevailing at the time of sale, at
negotiated prices or at fixed prices. The underwriters and dealers participating
in  such purchaser's offering  of such Certificates  may receive compensation in
the form of underwriting discounts or  commissions from such purchaser and  such
dealers  may receive commissions from the investors purchasing such Certificates
for whom they may act as agent  (which discounts or commissions will not  exceed
those  customary  in  those types  of  transactions involved).  Any  dealer that
participates in the  distribution of such  Certificates may be  deemed to be  an
"underwriter"  within the meaning of the  Act, and any commissions and discounts
received by such dealer  and any profit  on the resale  of such Certificates  by
such  dealer might be deemed to  be underwriting discounts and commissions under
the Act.
 
    One or more affiliates of the Seller and the Servicer, including  Prudential
Securities  Incorporated,  may  act as  underwriter  or dealer  with  respect to
Certificates of  any  Series. Any  such  affiliate  will be  identified  in  the
applicable Prospectus Supplement.
 
                                 LEGAL MATTERS
 
    Certain  legal matters  will be  passed upon  for the  Seller by Cadwalader,
Wickersham & Taft, New York, New York and for any underwriters by Brown &  Wood,
New York, New York.
 
                                     RATING
 
    It  is a  condition to  the issuance  of the  Stripped Certificates  and the
Multi-Class Certificates of any  Series that they  be rated in  one of the  four
highest  categories by at least one  Rating Agency. Standard Certificates may or
may not be rated by a Rating Agency.
 
    A securities 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
Agency.  Each securities rating  should be evaluated  independently of any other
rating.
 
                                       97
<PAGE>
                        INDEX OF SIGNIFICANT DEFINITIONS
 
<TABLE>
<CAPTION>
TERM                                                                         PAGE
- ---------------------------------------------------------------------------  ----
<S>                                                                          <C>
Aggregate Losses...........................................................   34
Assumed Reinvestment Rate..................................................   33
Balloon Loan...............................................................   15
Balloon Period.............................................................   15
Buy-Down Fund..............................................................   15
Buy-Down Loans.............................................................   15
Certificate Account........................................................   48
Certificates...............................................................    1
Class......................................................................    1
Code.......................................................................   11
Compound Interest Certificates.............................................   24
Cross-Over Date............................................................   29
Curtailments...............................................................   24
Cut-Off Date...............................................................    8
Depository.................................................................   48
Determination Date.........................................................   24
Distributable Amount.......................................................   24
Distribution Date..........................................................    8
Due Date...................................................................   13
Due Period.................................................................   32
Eligible Investments.......................................................   35
ERISA......................................................................   11
FDIC.......................................................................   49
FHLMC......................................................................   14
Fixed Retained Yield.......................................................    9
FNMA.......................................................................   14
Initial Deposit............................................................   34
Interest Rate..............................................................    1
Last Scheduled Distribution Date...........................................   33
Late Payment...............................................................   25
Late Payment Period........................................................   25
Liquidation Proceeds.......................................................   49
Loan-to-Value Ratio........................................................   13
Mortgage Interest Rate.....................................................    9
Mortgage Loans.............................................................    1
Mortgage Notes.............................................................   12
Mortgaged Properties.......................................................   12
Mortgages..................................................................   12
Multi-Class Certificate Distribution Amount................................   32
Multi-Class Certificates...................................................    1
Net Foreclosure Profits....................................................   27
Net Mortgage Interest Rate.................................................    9
OTS........................................................................   65
Payment Deficiencies.......................................................   34
Pass-Through Rate..........................................................    9
Percentage Certificates....................................................   23
Periodic Advances..........................................................   11
PHMC.......................................................................    1
PMCC.......................................................................   42
Pool Distribution Amount...................................................   26
Pool Scheduled Principal Balance...........................................   29
Pool Value.................................................................   32
</TABLE>
 
                                       98
<PAGE>
<TABLE>
<CAPTION>
TERM                                                                         PAGE
- ---------------------------------------------------------------------------  ----
<S>                                                                          <C>
Pool Value Group...........................................................   32
Pooling and Servicing Agreement............................................    7
Prepayment Interest Shortfall..............................................   25
Prudential Insurance.......................................................    7
Rating Agency..............................................................   11
Record Date................................................................    9
Registration Statement.....................................................    2
Regular Certificateholder..................................................   70
Regular Certificates.......................................................   22
REMIC......................................................................    1
Residual Certificates......................................................   22
Scheduled Principal........................................................   24
Scheduled Principal Balance................................................   25
Seller.....................................................................    1
Senior Certificates........................................................    1
Senior Class...............................................................   24
Senior Class Carryover Shortfall...........................................   27
Senior Class Distributable Amount..........................................   24
Senior Class Distribution Amount...........................................   28
Senior Class Principal Portion.............................................   24
Senior Class Pro Rata Share................................................   27
Senior Class Shortfall.....................................................   27
Senior Class Shortfall Accruals............................................   28
Series.....................................................................    1
Servicer...................................................................    1
Servicing Fee..............................................................    9
Shifting Interest Certificate..............................................   23
Special Distributions......................................................   33
Special Hazard Loss Amount.................................................   37
Special Hazard Mortgage Loan...............................................   37
Special Hazard Termination Date............................................   37
Specified Subordination Reserve Fund Balance...............................   34
Spread.....................................................................   32
Standard Certificates......................................................    1
Standard Hazard Insurance Policy...........................................   15
Stated Amount..............................................................    1
Stripped Certificates......................................................    1
Subclass...................................................................    1
Subordinated Amount........................................................    9
Subordinated Certificates..................................................    1
Subordinated Class Distributable Amount....................................   25
Subordinated Class Principal Portion.......................................   25
Subordinated Class Pro Rata Share..........................................   27
Subordination Reserve Fund.................................................   10
Subsidy Account............................................................   14
Subsidy Loans..............................................................   14
Treasury Regulations.......................................................   17
Trust Estate...............................................................    1
Trustee....................................................................   60
UCC........................................................................   62
Unpaid Interest Shortfall..................................................   28
Voting Interests...........................................................   58
</TABLE>
 
                                       99
<PAGE>
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    NO  DEALER,  SALESMAN  OR  OTHER  PERSON HAS  BEEN  AUTHORIZED  TO  GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS SUPPLEMENT,  THE
PROSPECTUS SUPPLEMENT OR THE PROSPECTUS, AND, IF GIVEN OR MADE, SUCH INFORMATION
OR  REPRESENTATION MUST  NOT BE  RELIED UPON  AS HAVING  BEEN AUTHORIZED  BY THE
SELLER OR BY THE UNDERWRITER. THIS SUPPLEMENT, THE PROSPECTUS SUPPLEMENT AND THE
PROSPECTUS DO NOT CONSTITUTE AN OFFER TO SELL, OR A SOLICITATION OF AN OFFER  TO
BUY, ANY SECURITIES OTHER THAN THE SECURITIES OFFERED HEREBY NOR AN OFFER TO ANY
PERSON  IN ANY STATE OR OTHER JURISDICTION IN WHICH IT WOULD BE UNLAWFUL TO MAKE
SUCH  OFFER  OR  SOLICITATION  IN  SUCH  JURISDICTION.  THE  DELIVERY  OF   THIS
SUPPLEMENT,  THE PROSPECTUS SUPPLEMENT  AND THE PROSPECTUS AT  ANY TIME DOES NOT
IMPLY THAT INFORMATION  HEREIN IS  CORRECT AS OF  ANY TIME  SUBSEQUENT TO  THEIR
RESPECTIVE DATES.
                             ---------------------
                               TABLE OF CONTENTS
                                   SUPPLEMENT
 
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           -----
<S>                                                                        <C>
General..................................................................   S1-3
Risk Factors and Special Considerations..................................   S1-3
Description of the Certificates..........................................   S1-6
Description of the Mortgage Loans........................................   S1-8
Origination, Delinquency and Foreclosure Experience......................  S1-15
Restrictions on Transfer of the Class A-18 Certificates..................  S1-19
Historical Prepayments...................................................  S1-19
Sensitivity of the Pre-Tax Yield and Weighted Average Life of the Class
  A-18 Certificates......................................................  S1-20
Certain Federal Income Tax Consequences..................................  S1-21
Underwriting.............................................................  S1-22
Secondary Market.........................................................  S1-22
ERISA Considerations.....................................................  S1-22
Legal Investment.........................................................  S1-23
Legal Matters............................................................  S1-23
Use of Proceeds..........................................................  S1-23
Ratings..................................................................  S1-23
Incorporation of Certain Information by Reference........................  S1-24
                             PROSPECTUS SUPPLEMENT
Table of Contents........................................................    S-3
Summary Information......................................................    S-4
Description of the Certificates..........................................   S-22
Description of the Mortgage Loans........................................   S-56
Origination, Delinquency and Foreclosure Experience......................   S-63
Prepayment and Yield Considerations......................................   S-67
Pooling and Servicing Agreement..........................................   S-79
Federal Income Tax Considerations........................................   S-80
ERISA Considerations.....................................................   S-83
Legal Investment.........................................................   S-84
Secondary Market.........................................................   S-84
Underwriting.............................................................   S-84
Legal Matters............................................................   S-85
Use of Proceeds..........................................................   S-85
Ratings..................................................................   S-85
Index of Significant Prospectus Supplement
  Definitions............................................................   S-86
                                   PROSPECTUS
Reports..................................................................      2
Additional Information...................................................      2
Additional Detailed Information..........................................      2
Table of Contents........................................................      3
Summary of Prospectus....................................................      7
The Trust Estates........................................................     12
Description of the Certificates..........................................     22
Credit Support...........................................................     34
Prepayment and Yield Considerations......................................     39
The Seller...............................................................     41
PHMC.....................................................................     42
Use of Proceeds..........................................................     48
Servicing of the Mortgage Loans..........................................     48
The Pooling and Servicing Agreement......................................     58
Certain Legal Aspects of the Mortgage Loans..............................     61
Certain Federal Income Tax Consequences..................................     67
ERISA Considerations.....................................................     91
Legal Investment.........................................................     95
Plan of Distribution.....................................................     96
Legal Matters............................................................     97
Rating...................................................................     97
Index of Significant Definitions.........................................     98
</TABLE>
 
                              THE PRUDENTIAL HOME
                              MORTGAGE SECURITIES
                                 COMPANY, INC.
 
                                     SELLER
 
                             MORTGAGE PASS-THROUGH
                          CERTIFICATES, SERIES 1993-9
 
                              -------------------
 
                                   SUPPLEMENT
 
                              -------------------
 
                                 VARIABLE RATE1
                            CLASS A-18 CERTIFICATES
                       1ON THE CLASS A-18 NOTIONAL AMOUNT
 
                            PAINEWEBBER INCORPORATED
 
                                 APRIL 22, 1996
 
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