GE CAPITAL MORTGAGE SERVICES INC
424B5, 1999-06-24
ASSET-BACKED SECURITIES
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<PAGE>   1
                                             As Filed Pursuant to Rule 424(b)(5)
                                             Registration No. 333-68951


PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED APRIL 22, 1999)

                GE CAPITAL MORTGAGE SERVICES, INC. 1999-13 TRUST

                                     Issuer

                       GE CAPITAL MORTGAGE SERVICES, INC.

                             Depositor and Servicer

                                  $493,567,573
                                 (Approximate)

            REMIC MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 1999-13
        PRINCIPAL AND INTEREST PAYABLE MONTHLY, BEGINNING JULY 26, 1999

                          THE TRUST WILL ISSUE:

                               - 20 classes of senior certificates; and
                               - 6 classes of junior certificates.

     For a description of the classes of certificates offered by this prospectus
supplement, see "Securities Offered" on page S-3.

     The assets of the trust will include a pool of conventional, fixed-rate,
first-lien, fully-amortizing, one- to four-family residential mortgage loans.
The stated maturities of the mortgage loans will range from 20 to 30 years.
                             ----------------------

     CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE S-9 OF THIS
PROSPECTUS SUPPLEMENT.
                             ----------------------

     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS SUPPLEMENT. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE.

     Merrill Lynch, Pierce, Fenner & Smith Incorporated will purchase the
certificates offered by this prospectus supplement and will sell them to
investors at varying prices determined at the time of sale. The proceeds to the
depositor from the sale of the offered certificates will be approximately
98.287175% of the total principal balance of those certificates plus accrued
interest, before deducting expenses. The underwriter's commission will be the
difference between the price it pays for those certificates and the amount it
receives from their sale to the public. The certificates will be available for
delivery to investors on or about June 24, 1999.

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

                              MERRILL LYNCH & CO.
            THE DATE OF THIS PROSPECTUS SUPPLEMENT IS JUNE 22, 1999.
<PAGE>   2

IMPORTANT NOTICE ABOUT INFORMATION PRESENTED IN THIS PROSPECTUS SUPPLEMENT AND
THE ACCOMPANYING PROSPECTUS

     We provide information to you about the certificates offered by this
prospectus supplement and the underlying trust in two separate documents: (1)
the accompanying prospectus, which provides general information, some of which
may not apply to your certificates or trust, and (2) this prospectus supplement,
which describes the specific terms of your certificates and the assets in your
trust. You should read both of these documents together.

     This prospectus supplement will supplement and enhance the disclosure in
the prospectus for purposes of your certificates.
                                       S-2
<PAGE>   3

SUMMARY OF TERMS

     This summary highlights selected information from this document and does
not contain all of the information that you need to consider in making your
investment decision. This summary contains an overview of certain concepts and
other information to aid your understanding. All of the information contained in
this summary is qualified by the more detailed explanation described in other
parts of this prospectus supplement and the accompanying prospectus.

THE ISSUER

     The issuer of the certificates will be GE Capital Mortgage Services, Inc.
1999-13 Trust. The trust was created for the sole purpose of issuing the
certificates.

     We will sell the mortgage loans underlying the certificates to the trust.

SECURITIES OFFERED

     The total original principal balance of the certificates will be
approximately $498,750,716. The following table shows the approximate initial
principal balance, annual certificate interest rate and minimum denomination of
each class of certificates offered by this prospectus supplement:

<TABLE>
<CAPTION>
                          CLASS CERTIFICATE      CERTIFICATE        MINIMUM
                         PRINCIPAL BALANCE(1)   INTEREST RATE     DENOMINATION
                         --------------------   -------------     ------------
<S>                      <C>                    <C>               <C>
SENIOR CERTIFICATES
A1....................       $40,926,000            6.50%           $ 25,000
A2....................        14,475,476          (2)                   25,000
A3....................        47,710,557            6.50              25,000
A4....................         4,053,134          (2)                   25,000
A5....................         2,551,890            7.00               1,000
A6....................         4,712,416            7.00               1,000
A7....................         2,000,000            7.00               1,000
A8....................        29,000,000            7.50              25,000
A9....................       138,655,000            6.00              25,000
A10...................        29,000,000            6.75              25,000
A11...................       100,000,000            7.00              25,000
A12...................        20,707,000            6.50              25,000
A13...................         3,448,000            7.00               1,000
A14...................           676,358          (3)                   25,000
A15...................         4,204,000            7.00               1,000
A16...................         1,140,642            7.00               1,000
A17...................        33,845,000            6.00              25,000
Class R...............               100            6.50                 (4)
                        (table continues on next page)
</TABLE>

                                       S-3
<PAGE>   4

<TABLE>
<CAPTION>
                          CLASS CERTIFICATE      CERTIFICATE        MINIMUM
                         PRINCIPAL BALANCE(1)   INTEREST RATE     DENOMINATION
                         --------------------   -------------     ------------
<S>                      <C>                    <C>               <C>
JUNIOR CERTIFICATES:
M.....................       $10,483,000            6.50%           $100,000
B1....................         3,737,000            6.50             100,000
B2....................         2,242,000            6.50             100,000
</TABLE>

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

(1) Approximate, subject to adjustment as described in this prospectus
    supplement.

(2) This class of certificates will accrue interest at the floating rate
    described in this prospectus supplement. You should refer to "Description of
    the Certificates -- Distributions on the Certificates -- Interest" for a
    description of this rate.

(3) This class of certificates pays only principal and will not accrue interest.

(4) This class of certificates will be issued as a single certificate in
    definitive physical form.

     The Class A1 through Class A17 Certificates, Class PO, Class R and Class S
Certificates are the senior certificates. The Class R Certificates are the
residual certificates. The Class M and the Class B1 through Class B5
Certificates are the junior certificates.

     The Class PO, Class B3, Class B4, Class B5 and Class S Certificates are not
offered by this prospectus supplement. We will initially retain the Class PO and
Class S Certificates but may transfer them later.

     Depending on the final composition of the pool of mortgage loans sold to
the trust, the principal balance of each class of certificates may increase or
decrease from the amount listed above. The total original principal balance of
the certificates will not be less than $475,000,000 or greater than
$525,000,000.

     Certificates with principal balances in excess of the minimum denominations
shown above will be issued in multiples of $1,000 above the minimum
denomination.

THE MORTGAGE LOANS

     We originated or acquired all of the mortgage loans. The mortgage loans
expected to be sold to the trust have the following characteristics as of June
1, 1999:

<TABLE>
<S>                                  <C>
- - Total outstanding principal        $498,750,716
  balance(1):
- - Original terms to maturity:        20 to 30 years
- - Weighted average maturity:         between 357 and 359 months
- - Weighted average annual            between 7.14% and 7.18%
  interest rate:
- - Largest geographic                 No more than 45% of the mortgage
  concentration:                     loans are secured by properties
                                     located in California
</TABLE>

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

(1) Approximate, after deducting payments of principal due or received on or
    before June 1, 1999, and subject to the variance described in this
    prospectus supplement.

THE SERVICER

     We will directly service approximately 70% of the mortgage loans in the
trust and will supervise the servicing of the remainder of the mortgage loans by
third party servicers.
                                       S-4
<PAGE>   5

     As servicer, we must make reasonable efforts to collect payments due on the
mortgage loans. In addition, we must advance delinquent payments on mortgage
loans to the extent described in this prospectus supplement and will reduce our
servicing compensation, to the extent described in this prospectus supplement,
to reimburse certificateholders for shortfalls of interest payments.

     You should refer to "GE Capital Mortgage Services, Inc." and "The Pooling
and Servicing Agreement -- Servicing Arrangement with Respect to the Mortgage
Loans" and "-- Servicing Compensation, Compensating Interest and Payment of
Expenses" in this prospectus supplement.

DISTRIBUTIONS ON THE CERTIFICATES

     The trustee will make distributions on the certificates on the 25th day of
each month. If the 25th is not a business day, the trustee will make
distributions on the next business day. The first distribution date will be July
26, 1999.

     On each distribution date, the trustee will first pay to the senior
certificates the amounts of interest and principal distributable to them from
available funds. The trustee will then pay interest and principal to the junior
certificates from the remaining available funds.

Interest Payments

     - The actual amount of interest you receive on your certificates on each
       distribution date if your certificates are entitled to interest, will
       depend on:

       -- the amount of interest accrued on your certificates;

       -- the total amount of funds available for distribution; and

       -- the amount of any accrued interest not paid on your certificates on
          earlier distribution dates.

     - If you are the holder of a Class A2 or Class A4 Certificate, the amount
       of interest you receive will depend from time to time on the level of the
       London Interbank Offered Rate, known as LIBOR.

     - If you are the holder of a senior certificate entitled to interest
       payments, the amount of interest payable to you will be in proportion to
       the interest payable on all of the senior certificates together. All of
       the senior certificates entitled to interest payments will receive these
       payments at the same time.

     - The Class A14 Certificates are principal-only certificates and will
       receive no payments of interest. As a result, the yield on these
       certificates will be particularly sensitive to the rate of prepayments on
       the mortgage loans. See the risk factor relating to these certificates on
       page S-10.

     - If you are the holder of a junior certificate, you will receive interest
       payments only after the trustee has paid interest and principal to:

       -- all of the senior certificates; and

       -- each class of junior certificates that ranks higher than your
       certificates.

     - The trustee will calculate interest on the basis of a 360-day year
       consisting of twelve 30-day months.
                                       S-5
<PAGE>   6

Principal Payments

     - After interest payments have been made on all senior certificates
       entitled to interest, each class of senior certificates entitled to
       principal distributions will also receive a payment of principal. If you
       are the holder of junior certificates, you will receive principal
       payments after (1) interest and principal have been paid on all the
       senior certificates and the junior certificates ranking senior to yours
       (if any) and (2) interest has been paid on your certificates. You should
       refer to "Description of the Certificates -- Distributions on the
       Certificates" for a description of the amount of principal payable to you
       and the priority in which it will be paid.

     - The amount and timing of principal you receive on your certificates will
       depend on:

       -- the various priorities and formulas described in this prospectus
          supplement that determine the allocation of principal payments to your
          certificates; and

       -- the amounts actually available for distribution as principal.

     - Because of the principal allocation formulas described in this prospectus
       supplement, the senior certificates entitled to principal
       distributions -- other than the Class PO Certificates -- will receive
       principal payments at a faster rate than the junior certificates for at
       least the first nine years after the issuance of the certificates. The
       Class A3 Certificates will not benefit from this accelerated repayment.
       You should refer to "Description of the Certificates -- Distributions on
       the Certificates -- Allocation of Available Funds."

     - If you are the holder of a Class A7, Class A13, Class A15 or Class A16
       Certificate, you will have the option to request redemption of all or any
       part of your certificate, in any amount that is a multiple of $1,000. In
       addition, you may receive principal payments by random lottery.
       Accordingly, the timing of the principal payments you receive will be
       determined by whether your redemption request is honored and whether your
       certificates are selected for payment. You should refer to "Description
       of the Certificates -- Principal Distributions on the Class A7, Class
       A13, Class A15 and Class A16 Certificates" for a description of how
       principal payments will be made on these certificates. You should also
       see the risk factor relating to these certificates on page S-11.

OPTIONAL TERMINATION

     We will have the option to repurchase all the mortgage loans and thereby
effect the early retirement of the certificates when the aggregate principal
balance of the mortgage loans is less than 10% of the aggregate principal
balance of the mortgage loans as of June 1, 1999. See "The Pooling and Servicing
Agreement -- Termination" in this prospectus supplement.

CREDIT ENHANCEMENT

     Your certificates will benefit from the credit enhancement provided by the
subordination of the junior certificates.

     This subordination will benefit the senior certificates in two ways:

     - The senior certificates will have a preferential right over the junior
       certificates to receive funds available for interest and principal
       distributions.
                                       S-6
<PAGE>   7

     - The junior certificates will absorb all losses on the mortgage loans up
       to the level described in this prospectus supplement.

     If you are the holder of a senior certificate, you should keep in mind,
however, that the subordination of the junior certificates offers only limited
protection against the loss of your investment. See the related risk factor on
page S-13.

FEDERAL INCOME TAX CONSEQUENCES

     The trust will be treated as a single REMIC for federal income tax
purposes. As a result, the certificates other than the Class R Certificates will
be treated as regular interests in the REMIC, and the Class R Certificates will
be treated as the residual interest in the REMIC. All of the regular interest
certificates will be treated as debt for tax purposes. In addition, unless you
are the holder of the Class R Certificates, you will be required to report
income on your certificates under the accrual method of accounting. Under the
accrual method of accounting, you may be required to report income for federal
income tax purposes in advance of receiving a corresponding cash distribution.

     The particular federal income tax consequences of your investment will
depend upon the class of certificates you buy. You should consider carefully the
tax consequences of an investment in the following classes of certificates:

     - the Class A14 Certificates, which will be, and certain other classes of
       certificates, which may be, issued with original issue discount;

     - the residual certificates, which will be subject to special rules that
       could significantly reduce their after-tax yield; and

     - the junior certificates, whose reported income may exceed the amount of
       cash actually received.

     You should refer to "Federal Income Tax Consequences" in this prospectus
supplement and "Federal Income Tax Consequences -- REMIC Certificates" in the
accompanying prospectus to determine the tax consequences to you of an
investment in the certificates.

LEGAL INVESTMENT

     The senior certificates offered hereby and the Class M Certificates will be
"mortgage related securities" for purposes of the Secondary Mortgage Market
Enhancement Act of 1984 for so long as they satisfy the criteria described in
"Legal Investment Matters" in this prospectus supplement. No other certificates
will be mortgage related securities. You should consult your own legal advisors
to determine whether, and to what extent, you can invest in the certificates.
See "Legal Investment Matters" in this prospectus supplement and in the
accompanying prospectus for important information concerning possible
restrictions on the ownership of the certificates by regulated institutions.

ERISA CONSIDERATIONS

     If you are investing the assets of an employee benefit plan that is subject
to ERISA or to Section 4975 of the federal income tax code, you may not acquire
the Class M, Class B1, Class B2 or Class R Certificates. In addition, you should
consider carefully the information presented in "ERISA Considerations" in this
prospectus supplement and in the accompanying prospectus.
                                       S-7
<PAGE>   8

CERTIFICATE RATINGS

     The certificates must receive the ratings indicated under "Certificate
Ratings" from Fitch IBCA, Inc. and/or Standard & Poor's Ratings Services, a
division of The McGraw-Hill Companies, Inc., at the time of their initial
issuance. You should refer to "Certificate Ratings" in this prospectus
supplement to learn more about the significance and limitation of ratings.
                                       S-8
<PAGE>   9

RISK FACTORS

AN INVESTMENT IN THE
CERTIFICATES MAY
  NOT BE SUITABLE FOR YOU           The certificates are not suitable
                                    investments for all investors. In
                                    particular, you should not purchase any
                                    class of offered certificates unless you
                                    understand the prepayment, credit, liquidity
                                    and market risks associated with that class.

                                    The certificates are complex securities. You
                                    should possess, either alone or together
                                    with an investment advisor, the expertise
                                    necessary to evaluate the information
                                    contained in this prospectus supplement and
                                    the accompanying prospectus in the context
                                    of your financial situation and tolerance
                                    for risk.

                                    You should carefully consider, among other
                                    things, the factors described below before
                                    purchasing the certificates.

LOSSES AND DELINQUENT PAYMENTS
ONTHE MORTGAGE LOANS MAY REDUCE
  THE YIELD ON YOUR CERTIFICATES    Payments on the mortgage loans will not be
                                    insured by the government or any other
                                    person. Moreover, we, as servicer, have a
                                    limited obligation to make advances for
                                    delinquent installments of principal or
                                    interest, as described in "The Pooling and
                                    Servicing Agreement -- Advances."
                                    Consequently, the certificates will absorb
                                    the losses resulting from delinquent
                                    payments, and the yield on your certificates
                                    could be lower than you expect.

                                    In addition, if you are buying a class of
                                    certificates that ranks junior to another
                                    class of certificates, you will be more
                                    likely than the holder of a certificate
                                    senior to yours to experience losses as a
                                    result of payment defaults or liquidation
                                    losses on the underlying mortgage loans.
                                    This is because payment defaults and
                                    liquidation losses are first allocated to
                                    junior certificates, as described in
                                    "Description of the
                                    Certificates -- Allocation of Realized
                                    Losses on the Certificates" and
                                    "-- Distributions on the
                                    Certificates -- Allocation of Available
                                    Funds" in this prospectus supplement.

WE CANNOT GUARANTEE YOU REGULAR
  PAYMENTS ON YOUR CERTIFICATES     The amounts you receive on your certificates
                                    will depend on the amount of the payments
                                    borrowers make on the mortgage loans.
                                    Because we cannot predict the rate at which
                                    borrowers will repay their loans, you may
                                    receive distributions on your certificates
                                    in amounts that are larger or smaller than
                                    you expect. In addition, the life of your
                                    certificates may be longer or shorter than
                                    antici-

                                       S-9
<PAGE>   10

                                    pated. Because of this, we cannot guarantee
                                    that you will receive distributions at any
                                    specific future date or in any specific
                                    amount. Holders of the Class A7, Class A13,
                                    Class A15 and Class A16 Certificates should
                                    be aware of the special payment rules for
                                    these certificates that may make these
                                    payments especially unpredictable.

PREPAYMENT RATES THAT ARE FASTER
ORSLOWER THAN YOU EXPECT MAY
  REDUCE THE YIELD ON YOUR
  CERTIFICATES                      The yield to maturity on your certificates
                                    will depend primarily on the purchase price
                                    of your certificates and the rate of
                                    principal payments on the mortgage loans in
                                    the trust. Unexpected changes in prepayment
                                    rates could have the following negative
                                    effects:

                                         - If you bought your certificates for
                                           more than their face amount, the
                                           yield on your certificates will drop
                                           if principal payments occur at a rate
                                           faster than you expect.

                                         - If you bought your certificates for
                                           less than their face amount, the
                                           yield on your certificates will drop
                                           if principal payments occur at a rate
                                           slower than you expect.

                                         - If you are the holder of a Class A14
                                           Certificate, you will receive only
                                           distributions of principal. If
                                           prepayments occur at a rate slower
                                           than expected, the payments on your
                                           certificates will likewise occur at a
                                           rate slower than expected.
                                           Consequently, the yield on your
                                           certificates could drop
                                           significantly.

                                    For a more detailed discussion of the
                                    sensitivity of certain classes to prepayment
                                    rates and a description of the factors that
                                    may influence prepayments, see "Yield and
                                    Weighted Average Life Considerations" in
                                    this prospectus supplement and "Yield,
                                    Maturity and Weighted Average Life
                                    Considerations" in the prospectus.

IF YOU ARE THE HOLDER OF A CLASS
A2OR CLASS A4 CERTIFICATE, THE
  LEVEL
  OF LIBOR WILL GREATLY
  INFLUENCE
  THE YIELD ON YOUR CERTIFICATES    The amount of interest payable on the Class
                                    A2 and Class A4 Certificates is calculated
                                    by reference to the London Interbank Offered
                                    Rate, known as LIBOR. If LIBOR falls, the
                                    yield on the Class A2 Certificates will be
                                    lower. By contrast, if LIBOR rises, the
                                    yield on the Class A4 Certificates will be
                                    lower and could possibly fall to zero. The
                                    interest rate on the Class A2 and Class A4
                                    Certificates will not exceed a specified
                                    rate, regardless of LIBOR levels. See "Yield
                                    and Weighted Average Life
                                    Considerations -- Sensitivity of the LIBOR
                                    Certificates" in this prospectus supplement

                                      S-10
<PAGE>   11

                                    for more information on the yield
                                    sensitivity of these certificates.

PRINCIPAL PAYMENTS ON THE CLASS
A7,
  CLASS A13, CLASS A15 AND CLASS
  A16 CERTIFICATES MAY BE LESS
  PREDICTABLE THAN ON OTHER
  CLASSES
  BECAUSE OF SPECIAL RULES FOR
  DISTRIBUTING PRINCIPAL            As described in this prospectus supplement,
                                    special rules apply to determining which
                                    holders receive principal distributions on
                                    these classes and when these distributions
                                    are made. Amounts available for principal on
                                    any of these classes will first be paid to
                                    holders who have submitted requests for
                                    principal payments in the order submitted
                                    and with certain priorities given to holders
                                    who have died. Any amounts not paid to these
                                    requesting holders will be paid by random
                                    lot to other holders of these classes.

                                    If you submitted a request for principal
                                    payments, you may not receive the amount
                                    requested, either because other requests had
                                    priority over yours or because the amount
                                    available for principal payments on your
                                    class was insufficient to honor your
                                    request. If the amount available for
                                    principal distributions on your class
                                    exceeds the amount requested by all holders,
                                    you may receive distributions in excess of
                                    the amount you requested or, even if you did
                                    not make a request, you may receive
                                    distributions.

                                    As a result, holders may not receive
                                    principal payments when they are expecting
                                    them, and may receive principal payments
                                    when they are not expecting them. In
                                    addition to making distributions on these
                                    classes somewhat unpredictable, your yield
                                    may be affected by the timing of these
                                    payments, as described in some of the other
                                    risk factors in this prospectus supplement.

                                    Investors in these certificates should pay
                                    particular attention to the risk that they
                                    may be less likely to receive principal
                                    payments when prevailing interest rates
                                    available for reinvestment are high, and may
                                    be more likely to receive principal payments
                                    when prevailing interest rates available for
                                    reinvestment are low. See "Distributions on
                                    the Certificates -- Principal Distributions
                                    on the Class A7, Class A13, Class A15 and
                                    Class A16 Certificates."

YOU MAY BE UNABLE TO REINVEST
  DISTRIBUTIONS FROM THE
  CERTIFICATES
  IN COMPARABLE INVESTMENTS         Rapid prepayment rates on the mortgage loans
                                    are likely to coincide with periods of low
                                    prevailing interest rates. During these
                                    periods, the yield at which you may be able
                                    to reinvest amounts received as payments on
                                    your certificates may be lower than the
                                    yield on your certificates.

                                      S-11
<PAGE>   12

                                    Conversely, slow prepayment rates on the
                                    mortgage loans are likely to coincide with
                                    periods of high interest rates. During these
                                    periods, the amount of payments available to
                                    you for reinvestment at high rates may be
                                    relatively low.

                                    See "Yield and Weighted Average Life
                                    Considerations" in this prospectus
                                    supplement and "Yield, Maturity and Weighted
                                    Average Life Considerations" in the
                                    prospectus for more discussion of the effect
                                    of prepayments.

PREPAYMENTS MAY CAUSE REDUCTIONS
  IN INTEREST DISTRIBUTIONS ON
  YOUR
  CERTIFICATES                      The actual interest rate on your certificate
                                    may be less than the interest rate stated in
                                    this prospectus supplement. Unless you are
                                    the holder of the Class A14 Certificates,
                                    which pay only principal, your certificates
                                    will be allocated any interest shortfalls
                                    that we do not compensate for as described
                                    in this prospectus supplement. The
                                    circumstances under which interest
                                    shortfalls will occur are described in
                                    "Description of the
                                    Certificates -- Distributions on the
                                    Certificates" in this prospectus supplement.

THE CONCENTRATION OF MORTGAGE
LOANS
  IN SPECIFIC GEOGRAPHIC AREAS
  MAY
  INCREASE THE RISK OF LOSS ON
  THOSE
  MORTGAGE LOANS AND REDUCE THE
  YIELD ON YOUR CERTIFICATES        Approximately 45% of the mortgage loans in
                                    the trust are secured by properties located
                                    in California. Any deterioration in the real
                                    estate market or economy in California could
                                    result in higher rates of loss and
                                    delinquency than expected on the mortgage
                                    loans. In addition, California may
                                    experience natural disasters, such as
                                    earthquakes, fires, floods and hurricanes,
                                    which may not be fully insured against and
                                    which may result in property damage and
                                    losses on the mortgage loans. These events
                                    may adversely affect the funds available to
                                    make payments on your certificates, which
                                    may in turn reduce the yield on your
                                    certificates.

                                    See "Description of the Mortgage Pool and
                                    the Mortgaged Properties" in this prospectus
                                    supplement for more information on the
                                    location of the mortgage loans.

LOSSES ON THE MORTGAGE LOANS MAY
  BE HIGHER THAN EXPECTED, WHICH
  MAY LOWER THE YIELD ON YOUR
  CERTIFICATES                      A decline in real estate values or in
                                    economic conditions generally could increase
                                    the rates of delinquencies, foreclosures and
                                    losses on the mortgage loans to a level that
                                    is significantly higher than those
                                    experienced currently. This in turn will
                                    reduce the yield on your certificates, if
                                    the credit enhancement described in this
                                    prospectus supplement is not enough to
                                    protect your certificates from these losses.

                                      S-12
<PAGE>   13

THE SUBORDINATION PROVIDED BY
THE
  JUNIOR CERTIFICATES MAY NOT BE
  ADEQUATE TO PROTECT THE SENIOR
  CERTIFICATES FROM ALL LOSSES      As described in "Description of the
                                    Certificates -- Allocation of Realized
                                    Losses," losses will be allocated first to
                                    the junior certificates, in inverse order of
                                    priority. Losses may be severe enough,
                                    however, to reduce the aggregate principal
                                    balance of the junior certificates to zero.
                                    If this occurs, the senior certificates will
                                    bear their share of losses thereafter.

                                    In addition, certain types of
                                    losses -- referred to in this prospectus
                                    supplement as "Excess Losses" -- will be
                                    borne pro rata by the senior certificates
                                    and the junior certificates after a
                                    specified amount of these losses are borne
                                    solely by the junior certificates.

IF WE EXERCISE OUR OPTION TO
  TERMINATE THE TRUST, THE YIELD
  ON
  YOUR CERTIFICATES COULD BE
  LOWER
  THAN EXPECTED                     We may, at our option, terminate the trust
                                    under the circumstances described in "The
                                    Pooling and Servicing Agreement -- Optional
                                    Termination" in this prospectus supplement.
                                    If the proceeds realized upon termination
                                    are less than the outstanding principal
                                    balance on the certificates and accrued
                                    interest thereon, your certificates may bear
                                    their share of the resulting shortfall. As a
                                    result, you may not fully recover your
                                    investment and could potentially suffer
                                    losses. In addition, termination of the
                                    trust will result in the early retirement of
                                    your certificates, which will shorten the
                                    average life of the certificates and
                                    potentially lower their yield.

                                    You should refer to "The Pooling and
                                    Servicing Agreement -- Optional Termination"
                                    for a discussion of additional consequences
                                    of the trust's early termination.

YOU MAY NOT BE ABLE TO RESELL
YOUR
  CERTIFICATES                      The certificates will not be listed on any
                                    securities exchange, and a resale market for
                                    the certificates may not develop. Although
                                    the underwriter of this offering intends to
                                    create a resale market for the certificates
                                    offered by it, it has no obligation to do
                                    so. If a market for the certificates does
                                    develop, it may not continue. Moreover, this
                                    market may not be liquid enough to allow you
                                    to resell your certificates or to resell
                                    them at the price you desire.

                                      S-13
<PAGE>   14

YOU WILL NOT RECEIVE PHYSICAL
  CERTIFICATES, WHICH CAN CAUSE
  DELAYS IN DISTRIBUTIONS AND
  HAMPER
  YOUR ABILITY TO PLEDGE OR
  RESELL
  YOUR CERTIFICATES                 Unless you are the purchaser of the residual
                                    certificates, your ownership of the
                                    certificates will be registered
                                    electronically with DTC. The lack of
                                    physical certificates could:

                                         - result in payment delays on the
                                           certificates because the trustee will
                                           be sending distributions on the
                                           certificates to DTC instead of
                                           directly to you;

                                         - make it difficult for you to pledge
                                           your certificates if physical
                                           certificates are required by the
                                           party demanding the pledge; and

                                         - could hinder your ability to resell
                                           the certificates because some
                                           investors may be unwilling to buy
                                           certificates that are not in physical
                                           form.

OUR FAILURE OR THE FAILURE OF
THIRD
  PARTIES TO BE YEAR 2000
  COMPUTER
  READY COULD DISRUPT THE
  DISTRIBUTIONS ON YOUR
  CERTIFICATES                      Many computer systems and microprocessors
                                    with data functions, including those in
                                    non-information technology equipment and
                                    systems, use only two digits to identify a
                                    year in the date field with the assumption
                                    that the first two digits of the year are
                                    always "19." Consequently, on January 1,
                                    2000, computers that are not year 2000
                                    compliant may read the year as 1900 and
                                    malfunction.

                                    We are implementing a plan, which is
                                    described in "Year 2000 Computer Readiness"
                                    in the prospectus, to become year 2000
                                    compliant by mid-1999. We cannot guarantee,
                                    however, that our efforts to achieve year
                                    2000 readiness will be fully effective.
                                    Moreover, we cannot guarantee that any of
                                    our third-party service providers, such as
                                    trustees, borrowers' banks, loan servicers
                                    and DTC, will be year 2000 ready. We also
                                    cannot assure you that any future
                                    developments in connection with our year
                                    2000 readiness or the readiness of third
                                    parties will be those that we have
                                    anticipated.

                                    Our failure, or the failure of our
                                    third-party servicers, to become fully year
                                    2000 ready could disrupt, at least
                                    temporarily, our ability to carry out the
                                    servicing duties described in this
                                    prospectus supplement, including the
                                    calculation of amounts distributable to you
                                    and the timely transfer of funds to the
                                    trustee for your benefit. Your investment in
                                    the certificates could consequently suffer.

                                      S-14
<PAGE>   15

INDEX OF DEFINITIONS

     You can find a list of capitalized terms used in this prospectus
supplement, and the pages on which they are defined, under the caption "Index of
Certain Prospectus Supplement Definitions" beginning on page S-78 of this
prospectus supplement. Any capitalized terms that are not defined in the
prospectus supplement are defined in the accompanying prospectus. See "Index of
Certain Prospectus Definitions" on page 91 of the accompanying prospectus.

DESCRIPTION OF THE MORTGAGE POOL AND THE MORTGAGED PROPERTIES

GENERAL

     The certificates described in this prospectus supplement will represent the
entire beneficial ownership interest in the trust that is issuing these
certificates. The assets of the trust will consist primarily of a pool of
conventional, fixed-rate, fully-amortizing mortgage loans. The mortgage loans
are secured by mortgages, deeds of trust or other security instruments creating
first liens on one- to four-family residential properties or first liens on
rights to own and occupy apartments in cooperative buildings. GE Capital
Mortgage Services, Inc. ("GECMSI") is depositing the mortgage loans in the
trust.

     Certain data with respect to the mortgage loans expected to be included in
the trust are set forth below. A description of the final mortgage pool on a
Current Report on Form 8-K will be available to purchasers of the certificates
at or before, and will be filed by GECMSI with the SEC within fifteen days
after, the initial delivery of the certificates. This definitive description
will specify the precise aggregate Scheduled Principal Balance (as defined in
this prospectus supplement) of the mortgage loans as of the first day of the
month of creation of the trust (the "Cut-off Date") and will also include
statistical data relating to the final mortgage loans comparable in scope to
that set forth with respect to the expected mortgage pool on pages S-18 through
S-22 of this prospectus supplement. It will also specify the original principal
balance of each class of certificates (or, in the case of the Class S
Certificates, the notional principal balance) on the date of issuance of the
certificates, the initial Senior Percentage, the initial Class A3 Percentage,
the initial Junior Percentage, the Bankruptcy Loss Amount, the Fraud Loss Amount
and the Special Hazard Loss Amount, each as defined herein. The Pooling and
Servicing Agreement under which the certificates are issued and its exhibits
will be filed as an exhibit to the definitive description of the final mortgage
pool.

     The "Scheduled Principal Balance" of a mortgage loan as of the Cut-off Date
is the then outstanding principal balance thereof, after deducting payments of
principal due on or received before such date. 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
or similar proceeding or any moratorium or similar waiver or grace period, as of
the first day of the month preceding the month of such Distribution Date, after
giving effect to any previously applied partial principal prepayments, the
payment of principal due on such first day of the month and Deficient Valuations
occurring after the Bankruptcy Coverage Termination Date, as such terms are
defined herein, irrespective of any delinquency in payment by the related
borrower.

     The "Pool Scheduled Principal Balance" as of any Distribution Date is equal
to the aggregate Scheduled Principal Balances of all of the mortgage loans that
were Outstanding

                                      S-15
<PAGE>   16

Mortgage Loans on the first day of the month preceding the month of such
Distribution Date, or such other date as is specified.

     An "Outstanding Mortgage Loan" is any mortgage loan which has not been
prepaid in full, has not become a Liquidated Mortgage Loan and has not been
repurchased.

     We expect that the following percentages of the mortgage loans (by
Scheduled Principal Balance as of the Cut-off Date) will have been originated
under the following documentation programs:

     - At least 86% of the mortgage loans and substantially all of the mortgage
       loans with loan-to-value ratios in excess of 80% will have been
       originated under GECMSI's full or alternative documentation program or
       other full or alternative documentation programs acceptable to GECMSI.

     - No more than 4.50% of the mortgage loans will have been originated under
       GECMSI's no income verification programs or other no income verification
       programs acceptable to GECMSI.

     - No more than 9% of the mortgage loans will have been originated under
       GECMSI's "Enhanced Streamlined Refinance Program" or other streamlined
       refinance programs acceptable to GECMSI.

     - No more than 0.50% of the mortgage loans will have been originated under
       GECMSI's "No Ratio Program" or other no ratio programs acceptable to
       GECMSI.

     - None of the mortgage loans will have been originated under GECMSI's "No
       Income, No Asset Verification Program" or other no income, no asset
       verification programs acceptable to GECMSI.

     - No more than 0.70% of the mortgage loans will have been acquired under
       GECMSI's "Relocation Loan" program or other relocation programs
       acceptable to GECMSI.

See "The Trusts -- The Mortgage Loans -- Loan Underwriting Policies" in the
accompanying prospectus for a description of these documentation programs.

     Each mortgage loan other than a Cooperative Loan, as defined below, is
required to be covered by a standard hazard insurance policy. Each mortgage loan
which had a loan-to-value ratio at origination in excess of 80% also will be
covered by a private mortgage insurance policy. See "Servicing of the Mortgage
Loans -- Hazard Insurance" and "-- Private Mortgage Insurance" in the
prospectus.

     All payments due on each mortgage loan on which at least one payment of
principal and interest was due prior to the Cut-off Date will have been paid
through the first day of the month preceding the Cut-off Date. The mortgage loan
pool will include a substantial number of recently originated loans on which the
first monthly payments are not due until the Cut-off Date or on a date
subsequent to the initial issuance of the certificates.

     For a description of the underwriting standards generally applicable to the
mortgage loans, see "The Trust Fund -- The Mortgage Loans -- Loan Underwriting
Policies" in the prospectus.

                                      S-16
<PAGE>   17

THE MORTGAGE LOANS

     The mortgage loans will have an aggregate Scheduled Principal Balance as of
the Cut-off Date, after deducting payments of principal due or received on or
before such date, of approximately $498,750,716. This amount is subject to a
permitted variance such that the aggregate Scheduled Principal Balance thereof
will not be less than $475,000,000 or greater than $525,000,000.

     Prior to issuance of the certificates, we will not remove from the expected
mortgage pool more than 5% of the mortgage loans, measured by Scheduled
Principal Balance as of the Cut-off Date, unless a revised prospectus supplement
is delivered to prospective investors. In addition, prior to issuance of the
certificates, we will not add mortgage loans to the mortgage pool if this would
result in more than a 5% increase in the size of the mortgage pool, measured by
Scheduled Principal Balance as of the Cut-off Date, unless a revised prospectus
supplement is delivered to prospective investors.

     The interest rates borne by the mortgage loans are expected to range from
6.25% to 9.25% per annum, and the weighted average mortgage interest rate as of
the Cut-off Date of such mortgage loans is expected to be between 7.14% and
7.18% per annum. The original principal balances of the mortgage loans are
expected to range from $35,000 to $1,600,000 and, as of the Cut-off Date, the
average Scheduled Principal Balance of the mortgage loans is not expected to
exceed $340,000 after application of payments due on or before the Cut-off Date.
It is expected that the month and year of the earliest origination date of any
mortgage loan will be April 1994 and the month and year of the latest scheduled
maturity date of any such mortgage loan will be June 2029. All of the mortgage
loans will have original terms to maturity of 20 to 30 years, and it is expected
that the weighted average scheduled remaining term to maturity of the mortgage
loans will be between 357 and 359 months as of the Cut-off Date.

     The mortgage loans are expected to have the following additional
characteristics (by Scheduled Principal Balance of all the mortgage loans) as of
the Cut-off Date:

     - No more than 13% of the mortgage loans will have a Scheduled Principal
       Balance of more than $500,000 and up to and including $750,000. No more
       than 2% of the mortgage loans will have a Scheduled Principal Balance of
       more than $750,000 and up to and including $1,000,000. No more than 1.25%
       of the mortgage loans will have a Scheduled Principal Balance of more
       than $1,000,000.

     - No more than 14% of the mortgage loans will have a loan-to-value ratio at
       origination in excess of 80%, no more than 5% of the mortgage loans will
       have a loan-to-value ratio at origination in excess of 90%, and none of
       the mortgage loans will have a loan-to-value ratio at origination in
       excess of 95%. As of the Cut-off Date, the weighted average loan-to-value
       ratio at origination of the mortgage loans is expected to be between 74%
       and 76%.

     - No more than 9% of the mortgage loans had a loan-to-value ratio at
       origination calculated based on an appraisal conducted more than one year
       before the origination date thereof.

     - The proceeds of at least 47% of the mortgage loans will have been used to
       acquire the related mortgaged property. The proceeds of the remainder of
       the mortgage loans will have been used to refinance an existing loan. No
       more than 20% of the mortgage loans will have been the subject of
       "cash-out" refinancings.

                                      S-17
<PAGE>   18

     - No more than 1% of the mortgage loans will be temporary buy-down mortgage
       loans. The portion of the interest rate paid by the related mortgagor
       will not increase by more than one percentage point for each six-month
       period. No mortgage interest rate may exceed the "bought down" rate by
       more than 3 percentage points, and no buy-down period will exceed 3
       years.

     - No more than 2% of the mortgage loans will be secured by mortgaged
       properties located in any one postal zip code area.

     - No more than 45% of the mortgage loans will be secured by mortgaged
       properties located in California. The majority of the mortgage loans will
       be secured by mortgaged properties located in California and New Jersey.

     - No more than 5% of the mortgage loans will be secured by mortgaged
       properties located in any one state except the states specified in the
       preceding sentence.

     - At least 96% of the mortgage loans will be secured by mortgaged
       properties determined by GECMSI to be the primary residence of the
       mortgagor. The basis for such determination will be the making of a
       representation by the mortgagor at origination that the underlying
       property will be used as the mortgagor's primary residence.

     - At least 91% of the mortgage loans will be secured by single-family,
       detached residences.

     - No more than 4% of the mortgage loans will be secured by condominiums.

     - No more than 1% of the mortgage loans will be secured by shares of stock
       in cooperative housing corporations and assignments of the proprietary
       leases to occupy cooperative apartment units therein (each, a
       "Cooperative Loan").

     Set forth below is a description of certain characteristics of the mortgage
pool and the mortgage loans expected to be included therein, subject to the
variance described herein. The sum of the percentages may not equal 100% due to
rounding.

               ORIGINAL PRINCIPAL BALANCES AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
      RANGE OF ORIGINAL           NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
      PRINCIPAL BALANCE         MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
      -----------------         --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
$      0- 227,150.............         88          $ 12,792,822.56              2.56%
 227,151- 250,000.............         64            15,496,374.48              3.11
 250,001- 300,000.............        526           145,491,022.03             29.17
 300,001- 350,000.............        320           104,069,544.83             20.87
 350,001- 400,000.............        190            71,048,003.31             14.25
 400,001- 450,000.............         99            41,806,685.07              8.38
 450,001- 600,000.............        144            73,506,966.99             14.74
 600,001- 650,000.............         27            17,271,561.72              3.46
 650,001-1,600,000............         19            17,267,734.75              3.46
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                                      S-18
<PAGE>   19

                 MORTGAGE INTEREST RATES AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
    MORTGAGE INTEREST RATE      MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
    ----------------------      --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
 6.250%.......................          1          $    299,715.35              0.06%
 6.375........................          4             1,289,119.18              0.26
 6.500........................         18             6,234,156.64              1.25
 6.625........................         30            10,146,315.49              2.03
 6.750........................         60            18,931,987.91              3.80
 6.875........................        171            57,694,749.53             11.57
 6.880........................          1               294,850.00              0.06
 7.000........................        295            99,208,141.70             19.89
 7.125........................        236            82,181,298.26             16.48
 7.250........................        283            95,248,304.21             19.10
 7.375........................        177            60,369,921.54             12.10
 7.500........................        109            36,436,476.55              7.31
 7.625........................         37            12,029,987.82              2.41
 7.750........................         22             6,967,418.34              1.40
 7.875........................         11             2,969,368.01              0.60
 8.000........................          5             1,942,622.57              0.39
 8.125........................          5             1,493,600.00              0.30
 8.250........................          3             1,335,784.74              0.27
 8.375........................          3             1,534,000.00              0.31
 8.500........................          2               933,068.15              0.19
 8.875........................          2               628,000.00              0.13
 9.000........................          1               324,000.00              0.06
 9.250........................          1               257,829.75              0.05
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                                      S-19
<PAGE>   20

     GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
            STATE               MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
            -----               --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
Alabama.......................          4          $  1,282,244.84              0.26%
Arizona.......................         32            10,278,454.81              2.06
Arkansas......................          4             1,440,283.47              0.29
California....................        651           223,594,620.14             44.83
Colorado......................         47            15,668,050.68              3.14
Connecticut...................         26            10,534,822.99              2.11
Delaware......................          4             1,522,067.36              0.31
District of Columbia..........          8             2,430,893.68              0.49
Florida.......................         24             6,579,252.39              1.32
Georgia.......................         55            19,153,042.05              3.84
Hawaii........................          2               835,600.10              0.17
Idaho.........................          1               427,000.00              0.09
Illinois......................         56            19,116,301.80              3.83
Indiana.......................          6             2,048,014.75              0.41
Iowa..........................          3               856,760.65              0.17
Kansas........................          1               334,000.00              0.07
Kentucky......................          3               857,400.00              0.17
Louisiana.....................          1               359,712.11              0.07
Maine.........................          3               605,661.39              0.12
Maryland......................         58            20,256,551.57              4.06
Massachusetts.................         71            23,077,756.18              4.63
Michigan......................          4             1,854,426.84              0.37
Minnesota.....................          4             1,337,035.47              0.27
Mississippi...................          1               344,000.00              0.07
Missouri......................         12             4,248,492.35              0.85
Nebraska......................          1               317,739.34              0.06
Nevada........................          8             2,369,098.58              0.48
New Hampshire.................          5             1,564,734.50              0.31
New Jersey....................         91            31,093,567.49              6.23
New Mexico....................          4             1,424,938.26              0.29
New York......................         38            11,962,028.42              2.40
North Carolina................         11             3,544,283.53              0.71
Ohio..........................         12             4,085,863.00              0.82
Oregon........................         28             9,085,133.13              1.82
Pennsylvania..................         31             9,881,874.40              1.98
Rhode Island..................          1               319,762.52              0.06
South Carolina................          4             1,207,026.90              0.24
South Dakota..................          1               255,790.16              0.05
Tennessee.....................          4             1,540,100.00              0.31
Texas.........................         31            10,226,440.99              2.05
Utah..........................         11             3,168,432.77              0.64
Vermont.......................          1               280,000.00              0.06
                               (table continues on next page)
</TABLE>

                                      S-20
<PAGE>   21
     GEOGRAPHIC DISTRIBUTION OF MORTGAGED PROPERTIES AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
            STATE               MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
            -----               --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
Virginia......................         52          $ 16,519,908.43              3.31%
Washington....................         57            19,225,013.93              3.85
Wisconsin.....................          5             1,636,533.77              0.33
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                   YEAR OF ORIGINATION AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
YEAR OF ORIGINATION             MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
- -------------------             --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
1994..........................          1          $    264,000.00              0.05%
1997..........................          1               397,377.15              0.08
1998..........................         21             7,358,925.60              1.48
1999..........................      1,454           490,730,412.99             98.39
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                    YEAR OF MATURITY AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
YEAR OF MATURITY                MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
- ----------------                --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
2019..........................         21          $  6,473,379.60              1.30%
2024..........................          6             2,437,070.82              0.49
2028..........................         17             6,866,424.98              1.38
2029..........................      1,433           482,973,840.34             96.84
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

              TYPES OF MORTGAGED PROPERTIES AS OF THE CUT-OFF DATE

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
       TYPE OF DWELLING         MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
       ----------------         --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
Single-family detached........      1,364          $465,579,732.91             93.35%
Single-family attached........         17             4,322,703.92              0.87
Condominium...................         49            14,159,467.35              2.84
2 - 4 family units............         36            12,538,498.69              2.51
Cooperative...................         11             2,150,312.87              0.43
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                                      S-21
<PAGE>   22

                  OCCUPANCY STATUS OF MORTGAGED PROPERTIES(1)

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
OCCUPANCY                       MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
- ---------                       --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
Owner Occupied................      1,439          $487,135,826.52             97.67%
Vacation......................         22             6,642,823.68              1.33
Investment....................         16             4,972,065.54              1.00
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

- -------------------------
(1) Based on information supplied by the mortgagor in the loan application.

                         PURPOSE OF THE MORTGAGE LOANS

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
                                                      PRINCIPAL         AGGREGATE SCHEDULED
                                  NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
     PURPOSE OF THE LOAN        MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
     -------------------        --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
Purchase......................        722          $242,172,108.33             48.56%
Rate Term/Refinance...........        492           166,760,295.47             33.44
Cash-out Refinance............        263            89,818,311.94             18.01
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

                      LOAN-TO-VALUE RATIOS AT ORIGINATION

<TABLE>
<CAPTION>
                                                 AGGREGATE SCHEDULED   PERCENTAGE OF POOL BY
RANGE OF                                              PRINCIPAL         AGGREGATE SCHEDULED
LOAN-TO-VALUE RATIOS              NUMBER OF         BALANCE AS OF      PRINCIPAL BALANCE AS
AT ORIGINATION                  MORTGAGE LOANS    THE CUT-OFF DATE      OF THE CUT-OFF DATE
- --------------------            --------------   -------------------   ---------------------
<S>                             <C>              <C>                   <C>
00.000-50.00%.................         61          $ 21,514,670.66              4.31%
50.001-60.00..................         83            29,485,865.59              5.91
60.001-70.00..................        187            67,568,191.03             13.55
70.001-75.00..................        198            70,238,481.27             14.08
75.001-80.00..................        732           247,266,862.23             49.58
80.001-85.00..................         33            10,525,202.88              2.11
85.001-90.00..................        109            33,449,189.15              6.71
90.001-95.00..................         74            18,702,252.93              3.75
                                    -----          ---------------            ------
     Total....................      1,477          $498,750,715.74            100.00%
                                    =====          ===============            ======
</TABLE>

DESCRIPTION OF THE CERTIFICATES

GENERAL

     The certificates will be issued pursuant to a Pooling and Servicing
Agreement (the "Agreement") to be dated as of the Cut-off Date between GECMSI,
as depositor of the mortgage loans and servicer, and State Street Bank and Trust
Company, as Trustee. See the prospectus for important additional information
regarding the terms and conditions of the Agreement and the certificates. The
certificates will be issued in the classes offered by this prospectus
supplement, together with the Class PO, Class B3, Class B4, Class B5 and Class S
Certificates, none of which are offered hereby. The certificates will be issued
in

                                      S-22
<PAGE>   23

the aggregate original principal balance of approximately $498,750,716, subject
to a permitted variance such that the aggregate original principal balance will
not be less than $475,000,000 or greater than $525,000,000. Any such variance
will be allocated so as to approximate the material characteristics of the
classes of certificates described herein.

     As described below, each class of certificates offered hereby, other than
the residual certificates, will be issued in book-entry form. Beneficial
interests in these certificates (the "Book-Entry Certificates") will be held by
investors through the book-entry facilities of The Depository Trust Company, as
described below, in the minimum denominations described in the summary of this
prospectus supplement. Notwithstanding the integral multiple requirements
described in the summary, one certificate of each class other than the residual
certificates may evidence an additional amount equal to the remaining Class
Certificate Principal Balance thereof.

BOOK-ENTRY CERTIFICATES

     Each class of the Book-Entry Certificates will be registered as a single
certificate held by a nominee of The Depository Trust Company, which is known as
DTC. For purposes of this discussion, the term DTC also refers to any successor
depository selected by DTC. GECMSI has been informed by DTC that its nominee
will be Cede & Co. Accordingly, Cede & Co. is expected to be the holder of
record of the Book-Entry Certificates. Except as described below, no person
acquiring a Book-Entry Certificate (each, a "beneficial owner") will be entitled
to receive a definitive physical certificate representing such certificate.

     The beneficial owner's ownership of a Book-Entry Certificate will be
recorded on the records of the brokerage firm, bank, thrift institution or other
financial intermediary (each, a "Financial Intermediary") that maintains the
beneficial owner's account for such purpose. In turn, the Financial
Intermediary's ownership of such Book-Entry Certificate will be recorded on the
records of DTC (or of a participating firm, that acts as agent for the Financial
Intermediary, whose interest will in turn be recorded on the records of DTC, if
the beneficial owner's Financial Intermediary is not a DTC participant).
Therefore, the beneficial owner must rely on the foregoing procedures to
evidence its beneficial ownership of a Book-Entry Certificate. Beneficial
ownership of a Book-Entry Certificate may only be transferred by compliance with
the procedures of such Financial Intermediaries and participants.

     DTC, which is a New York-chartered limited purpose trust company, performs
services for its participants, some of which (and/or their representatives) own
DTC. In accordance with its normal procedures, DTC is expected to record the
positions held by each of its participants in the Book-Entry Certificates,
whether held for its own account or as a nominee for another person. In general,
beneficial ownership of Book-Entry Certificates will be subject to the rules,
regulations and procedures governing DTC and its participants as in effect from
time to time.

     Distributions of principal of and interest on the Book-Entry Certificates
will be made on each Distribution Date by the Trustee to DTC. DTC will be
responsible for crediting the amount of such payments to the accounts of the
applicable participants in accordance with DTC's normal procedures. Each DTC
participant will be responsible for disbursing such payments to the beneficial
owners of the Book-Entry Certificates that it represents and to each Financial
Intermediary for which it acts as agent. Each such Financial Intermediary will
be responsible for disbursing funds to the beneficial owners of the Book-Entry
Certificates that it represents.

                                      S-23
<PAGE>   24

     AS A RESULT, UNDER A BOOK-ENTRY FORMAT, BENEFICIAL OWNERS OF THE BOOK-ENTRY
CERTIFICATES MAY EXPERIENCE SOME DELAY IN THEIR RECEIPT OF PAYMENTS. BECAUSE DTC
CAN ONLY ACT ON BEHALF OF FINANCIAL INTERMEDIARIES, THE ABILITY OF A BENEFICIAL
OWNER TO PLEDGE BOOK-ENTRY CERTIFICATES TO PERSONS OR ENTITIES THAT DO NOT
PARTICIPATE IN THE DTC SYSTEM, OR OTHERWISE TAKE ACTIONS IN RESPECT OF SUCH
BOOK-ENTRY CERTIFICATES, MAY BE LIMITED DUE TO THE LACK OF PHYSICAL CERTIFICATES
FOR SUCH BOOK-ENTRY CERTIFICATES. IN ADDITION, ISSUANCE OF THE BOOK-ENTRY
CERTIFICATES IN BOOK-ENTRY FORM MAY REDUCE THE LIQUIDITY OF SUCH CERTIFICATES IN
THE SECONDARY MARKET SINCE CERTAIN POTENTIAL INVESTORS MAY BE UNWILLING TO
PURCHASE CERTIFICATES FOR WHICH THEY CANNOT OBTAIN PHYSICAL CERTIFICATES.

     DTC has advised GECMSI and the Trustee that, unless and until definitive
physical certificates are issued, DTC will take any action permitted to be taken
by a holder of a certificate under the Agreement only at the direction of one or
more Financial Intermediaries to whose DTC accounts the Book-Entry Certificates
are credited. DTC may take conflicting actions with respect to other Book-Entry
Certificates to the extent that such actions are taken on behalf of Financial
Intermediaries whose holdings include such Book-Entry Certificates.

     Definitive physical certificates will be issued to beneficial owners of the
related Book-Entry Certificates, or their nominees, rather than to DTC, only if
(a) DTC or GECMSI advises the Trustee in writing that DTC is no longer willing,
qualified or able to discharge properly its responsibilities as nominee and
depository with respect to the certificates and GECMSI or the Trustee is unable
to locate a qualified successor, (b) GECMSI, at its sole option, elects to
terminate the book-entry system through DTC, or (c) after the occurrence of an
Event of Default as described in the accompanying prospectus, beneficial owners
of the Book-Entry Certificates aggregating not less than 51% of the aggregate
voting rights allocated thereto advise the Trustee and DTC through the Financial
Intermediaries in writing that the continuation of a book-entry system through
DTC (or a successor thereto) is no longer in the best interests of beneficial
owners of the certificates.

     Upon the occurrence of any of the events described in the immediately
preceding paragraph, the Trustee will be required to notify all beneficial
owners of the occurrence of such event and the availability through DTC of
definitive physical certificates. Upon surrender by DTC of the global
certificate or certificates representing the certificates and instructions for
re-registration, the Trustee will issue definitive physical certificates, and
thereafter the Trustee will recognize the holders of such certificates as
certificateholders under the Agreement. Following the issuance of definitive
physical certificates, distribution of principal and interest on the
certificates will be made by the Trustee directly to holders of these
certificates in accordance with the procedures set forth in the Agreement.

     The Agreement will provide that, if definitive physical certificates are
issued in respect of the Class M, Class B1 or Class B2 Certificates, no transfer
of such a certificate may be made unless the Trustee has received (1) a
certificate to the effect that the proposed transferee is not an ERISA Plan (as
defined herein) or that the transferee is an insurance company investing assets
of its general account and the exemption provided by Section III(a) of the
Department of Labor Prohibited Transaction Class Exemption 95-60, 60 Fed. Reg.
35925 (July 12, 1995), applies to such transferee's acquisition and holding of
such certificate or (2) an opinion of counsel relating to such transfer in form
and substance satisfactory to the Trustee and GECMSI. See "ERISA Considerations"
herein.

                                      S-24
<PAGE>   25

NON-BOOK-ENTRY CERTIFICATES

     The residual certificates (the "Non-Book-Entry Certificates") will be
issued in fully-registered, certificated form. The Non-Book-Entry Certificates
will be transferable and exchangeable on a certificate register to be maintained
at the corporate trust office in the city in which the Trustee is located or
such other office or agency maintained for such purposes by the Trustee in New
York City. Under the Agreement, the Trustee will initially be appointed as the
certificate registrar. No service charge will be made for any registration of
transfer or exchange of the residual certificates, but payment of a sum
sufficient to cover any tax or other governmental charge may be required by the
Trustee. The residual certificates will be subject to certain restrictions on
transfer. See "-- Restrictions on Transfer of the Residual Certificates" herein.

     Distributions of principal and interest, if any, on each Distribution Date
on the Non-Book-Entry Certificates will be made to the persons in whose names
such certificates are registered at the close of business on the last business
day of the month immediately preceding the month of such Distribution Date (the
"Record Date"). Distributions will be made by check or money order mailed to the
person entitled thereto at the address appearing in the certificate register or,
upon written request by the certificateholder to the Trustee, by wire transfer
to a United States depository institution designated by such certificateholder
and acceptable to the Trustee or by such other means of payment as such
certificateholder and the Trustee may agree; provided, however, that the final
distribution in retirement of the Non-Book-Entry Certificates will be made only
upon presentation and surrender of such certificates at the office or agency of
the Trustee specified in the notice to the holders thereof of such final
distribution.

AVAILABLE FUNDS

     The amount of funds ("Available Funds") in respect of the mortgage pool
that will be available for distribution to holders of the certificates on each
Distribution Date is described in the accompanying prospectus under "Servicing
of the Mortgage Loans -- Loan Payment Record."

DISTRIBUTIONS ON THE CERTIFICATES

Allocation of Available Funds

     Interest and principal on the certificates will be distributed monthly on
the 25th day of each month or, if such 25th day is not a business day, on the
succeeding business day (each, a "Distribution Date"), commencing in July 1999.
These distributions will be in an aggregate amount equal to the Available Funds
for the related Distribution Date. Distributions will be made to holders of
record on the close of business on the related Record Date.

     On each Distribution Date, the Available Funds will be distributed in the
following order of priority among the certificates:

          first, to the classes of senior certificates entitled to distributions
     of interest, the Accrued Certificate Interest on each such class for such
     Distribution Date, any shortfall in available amounts being allocated among
     such classes in proportion to the amount of Accrued Certificate Interest
     otherwise distributable thereon;

          second, to the classes of senior certificates entitled to
     distributions of interest, any Accrued Certificate Interest thereon
     remaining undistributed from previous Distribution Dates, to the extent of
     remaining Available Funds, any shortfall in available

                                      S-25
<PAGE>   26

     amounts being allocated among such classes in proportion to the amount of
     such Accrued Certificate Interest remaining undistributed for each such
     class for such Distribution Date;

          third, to the classes of senior certificates entitled to principal
     distributions, in reduction of the aggregate class certificate principal
     balances (the "Class Certificate Principal Balances") thereof, to the
     extent of remaining Available Funds, concurrently, as follows:

             (1) to the Class A1 through A17 Certificates and the Class R
        Certificates, the Senior Optimal Principal Distribution Amount for such
        Distribution Date, in the following order of priority:

                  (a) to the Class A3 Certificates, the Class A3 Principal
             Distribution Amount (as defined herein) for such Distribution Date,
             until the Class Certificate Principal Balance thereof has been
             reduced to zero; and

                  (b) to the Class A1, Class A2, Class A4 through Class A17 and
             Class R Certificates (together, the "Group I Senior Certificates),
             the Senior Optimal Principal Amount for such Distribution Date,
             less the Class A3 Principal Distribution Amount for such
             Distribution Date (such reduced amount, the "Group I Senior
             Principal Distribution Amount"), in the following order of
             priority:

                       (I) to the Class R Certificates, until the Class
                  Certificate Principal Balance thereof has been reduced to
                  zero;

                       (II) to the Class A1 and Class A8 through Class A17
                  Certificates, concurrently, as follows:

                           (A) approximately 17.7045931046% of the Group I
                      Senior Principal Distribution Amount remaining after
                      distributions under clause (1)(b)(I) above to the Class
                      A1, Class A12, Class A13, Class A14, Class A15 and Class
                      A16 Certificates, in the following order of priority:

                               (i) to the Class A1 Certificates, until the Class
                          Certificate Principal Balance thereof has been reduced
                          to zero;

                               (ii) to the Class A12 Certificates, until the
                          Class Certificate Principal Balance thereof has been
                          reduced to zero; and

                               (iii) to the Class A13, Class A14, Class A15 and
                          Class A16 Certificates, concurrently, as follows:

                                    (aa) approximately 92.8571338050% of the
                               amount distributable under clause
                               (1)(b)(II)(A)(iii), sequentially, to the Class
                               A13, Class A15 and Class A16 Certificates, in
                               that order, until the Class Certificate Principal
                               Balances thereof have each been reduced to zero;
                               and

                                    (bb) approximately 7.1428661950% of the
                               amount distributable under clause
                               (1)(b)(II)(A)(iii) to the Class A14 Certificates,
                               until the Class Certificate Principal Balance
                               thereof has been reduced to zero;

                                      S-26
<PAGE>   27

                           (B) approximately 7.2210795763% of the Group I Senior
                      Principal Distribution Amount remaining after
                      distributions under clause (1)(b)(I) above to the Class A8
                      Certificates, until the Class Certificate Principal
                      Balance thereof has been reduced to zero;

                           (C) approximately 42.9529733418% of the Group I
                      Senior Principal Distribution Amount remaining after
                      distributions under clause (1)(b)(I) above, sequentially,
                      to the Class A9 and Class A17 Certificates, in that order,
                      until the Class Certificate Principal Balances thereof
                      have been reduced to zero;

                           (D) approximately 7.2210795763% of the Group I Senior
                      Principal Distribution Amount remaining after
                      distributions under clause (1)(b)(I) above to the Class
                      A10 Certificates, until the Class Certificate Balance
                      thereof has been reduced to zero; and

                           (E) approximately 24.9002744010% of the Group I
                      Senior Principal Distribution Amount remaining after
                      distributions under clause (1)(b)(I) above to the Class
                      A11 Certificates, until the Class Certificate Balance
                      thereof has been reduced to zero; and

                       (III) to the Class A2, Class A4, Class A5, Class A6 and
                  Class A7 Certificates, the Group I Senior Principal
                  Distribution Amount remaining after distributions under
                  clauses (1)(b)(I) and (II) above, concurrently, as follows:

                           (A) approximately 52.0833294355% of the amount
                      distributable under clause (1)(b)(III) to the Class A2
                      Certificates, until the Class Certificate Principal
                      Balance thereof has been reduced to zero;

                           (B) approximately 14.5833348325% of the amount
                      distributable under clause (1)(b)(III) to the Class A4
                      Certificates, until the Class Certificate Principal
                      Balance thereof has been reduced to zero; and

                           (C) approximately 33.3333357320% of the amount
                      distributable under clause (1)(b)(III) to the Class A5,
                      Class A6 and Class A7 Certificates, in the following order
                      of priority:

                               (i) to the Class A5 Certificates, until the
                          Certificate Principal Balance thereof has been reduced
                          to zero; and

                               (ii) to the Class A6 and Class A7 Certificates,
                          concurrently, as follows:

                                    (aa) approximately 70.2044688529% of the
                               amount distributable under clause
                               (1)(b)(III)(C)(ii) to the Class A6 Certificates,
                               until the Class Certificate Principal Balance
                               thereof has been reduced to zero; and

                                    (bb) approximately 29.7955311471% of the
                               amount distributable under clause
                               (1)(b)(III)(C)(ii) to the Class A7 Certificates,
                               until the Class Certificate Principal Balance
                               thereof has been reduced to zero; and

                                      S-27
<PAGE>   28

             (2) to the Class PO Certificates, the Class PO Principal
        Distribution Amount for such Distribution Date, until the Class
        Certificate Principal Balance thereof has been reduced to zero;

          fourth, to the Class PO Certificates, to the extent of remaining
     Available Funds, the Class PO Deferred Amount for such Distribution Date,
     until the Class Certificate Principal Balance thereof has been reduced to
     zero; provided that, (1) on any Distribution Date, distributions pursuant
     to this priority fourth shall not exceed the Junior Optimal Principal
     Amount for such Distribution Date, (2) such distributions shall not reduce
     the Class Certificate Principal Balance of the Class PO Certificates and
     (3) no distribution will be made in respect of the Class PO Deferred Amount
     after the Distribution Date on which the respective Class Certificate
     Principal Balances of the junior certificates have been reduced to zero
     (the "Cross-Over Date");

          fifth, to the Class M Certificates, to the extent of remaining
     Available Funds, in the following order: (1) the Accrued Certificate
     Interest thereon for such Distribution Date, (2) any Accrued Certificate
     Interest thereon remaining undistributed from previous Distribution Dates
     and (3) such class's Allocable Share (as defined under "-- Principal"
     below) for such Distribution Date;

          sixth, to the Class B1 Certificates, to the extent of remaining
     Available Funds, in the following order: (1) the Accrued Certificate
     Interest thereon for such Distribution Date, (2) any Accrued Certificate
     Interest thereon remaining undistributed from previous Distribution Dates
     and (3) such class's Allocable Share for such Distribution Date;

          seventh, to the Class B2 Certificates, to the extent of remaining
     Available Funds, in the following order: (1) the Accrued Certificate
     Interest thereon for such Distribution Date, (2) any Accrued Certificate
     Interest thereon remaining undistributed from previous Distribution Dates
     and (3) such class's Allocable Share for such Distribution Date; and

          eighth, to each of the Class B3, Class B4 and Class B5 Certificates,
     to the extent of remaining Available Funds: (1) the Accrued Certificate
     Interest thereon for such Distribution Date, (2) any Accrued Certificate
     Interest thereon remaining undistributed from previous Distribution Dates
     and (3) such class's Allocable Share for such Distribution Date.

     The percentages set forth in priority third of the second paragraph under
"Allocation of Available Funds" were calculated on the basis of the Class
Certificate Principal Balances of the related certificates described herein. If
these Class Certificate Principal Balances are increased or decreased in
accordance with the variance permitted hereby, the applicable percentages will
be increased or decreased substantially correspondingly.

     On each Distribution Date after the Cross-Over Date, distributions of
principal on the outstanding senior certificates entitled to principal
distributions (other than the Class PO Certificates) will be made pro rata among
all such certificates, regardless of the allocation, or sequential nature, of
principal payments described in priority third above.

     "Pro rata" distributions among classes of certificates will be made in
proportion to the then-current Class Certificate Principal Balances of such
classes.

     If, after distributions have been made under priorities first and second of
the second paragraph under "Allocation of Available Funds" on any Distribution
Date, the remaining

                                      S-28
<PAGE>   29

Available Funds are less than the sum of the Senior Optimal Principal Amount and
the Class PO Principal Distribution Amount for such Distribution Date, the
amounts distributable under priority third above shall be proportionately
reduced, and such remaining Available Funds will be distributed on the senior
certificates entitled to principal distributions in accordance with the
applicable clauses of priority third above on the basis of such reduced amounts.
Notwithstanding such allocation, Realized Losses will be allocated to the
certificates as described under "-- Allocation of Realized Losses on the
Certificates" herein.

Interest

     Interest will accrue on the certificates offered hereby entitled to
interest distributions, other than the Class A2 and Class A4 Certificates
(together, the "LIBOR Certificates"), at the respective interest rates set forth
in the summary of this prospectus supplement during each Interest Accrual
Period. The "Interest Accrual Period" for each class of certificates entitled to
distributions of interest, other than LIBOR Certificates, will be the one-month
period ending on the last day of the month preceding the month in which a
Distribution Date occurs. The "Interest Accrual Period" for the LIBOR
Certificates will be the one-month period commencing on the 25th day of the
month preceding the month in which a Distribution Date occurs and ending on the
24th day of the month of such Distribution Date, provided that the first
Interest Accrual Period for the LIBOR Certificates will commence on the date of
issuance of the certificates. Interest will be calculated on the basis of a
360-day year consisting of twelve 30-day months.

     The interest rate on the Class A2 and Class A4 Certificates will be
determined by reference to LIBOR.

     Interest will accrue on the Class A2 Certificates at an annual rate of
5.9537000% for the first Interest Accrual Period, and thereafter, with respect
to each Interest Accrual Period, at an annual rate equal to the lesser of (1)
1.050% plus LIBOR and (2) 8.000%, subject to a minimum rate of 1.050%.

     Interest will accrue on the Class A4 Certificates at an annual rate of
7.308214007% for the first Interest Accrual Period, and thereafter, with respect
to each Interest Accrual Period, at an annual rate equal to the lesser of (1)
24.821425% -- (3.5714279 x LIBOR) and (2) 24.821425%, subject to a minimum rate
of 0.000%.

     The Trustee will determine LIBOR in accordance with the methods described
under "-- Determination of LIBOR for the LIBOR Certificates" below.

     On the date of issuance of the certificates, Merrill Lynch, Pierce, Fenner
& Smith Incorporated will deposit an amount equal to one day's interest on the
LIBOR Certificates into a custodial account to be held by State Street Bank and
Trust Company. This amount will be used to pay interest on the LIBOR
Certificates on the Distribution Date in July 1999.

     Interest will accrue on the Class B3, Class B4 and Class B5 Certificates at
the interest rate of 6.50% per annum during each Interest Accrual Period.

     Interest will accrue on the Class S Certificates during each Interest
Accrual Period at a variable per annum rate equal to the excess of (1) the
weighted average (by Scheduled Principal Balance) carried to six decimal places,
rounded down, of the Net Mortgage Rates of the Outstanding Mortgage Loans which
are Non-discount Mortgage Loans as of the first day of such Interest Accrual
Period (or as of the Cut-off Date, in the case of the first Interest Accrual
Period) over (2) 6.50%. However, this calculation will not include any mortgage
loan that was the subject of a voluntary prepayment in full received by

                                      S-29
<PAGE>   30

GECMSI, or, in the case of the mortgage loan master-serviced by GECMSI, of which
GECMSI receives notice, on or after the first day but on or before the fifteenth
day of such Interest Accrual Period. The per annum interest rate on the Class S
Certificates for the first Interest Accrual Period is expected to be
approximately 0.42895%.

     The Class A14 and Class PO Certificates are principal-only certificates and
will not accrue interest.

     The "Accrued Certificate Interest" for any certificate entitled to
distributions of interest for any Distribution Date will equal the interest
accrued during the related Interest Accrual Period at the applicable Certificate
Interest Rate on the Certificate Principal Balance (or, in the case of a Class S
Certificate, the Notional Principal Balance) of such certificate immediately
prior to such Distribution Date, less such certificate's share of any Net
Interest Shortfall (as defined below), the interest portion of any Excess Losses
(as defined herein) through the Cross-Over Date and, after the Cross-Over Date,
the interest portion of Realized Losses, including Excess Losses.

     The "Certificate Principal Balance" of any certificate as of any
Distribution Date will equal such certificate's Certificate Principal Balance on
the date of the initial issuance of the certificates, as reduced by:

          - all amounts distributed on previous Distribution Dates on such
     certificate on account of principal;

          - the principal portion of all Realized Losses previously allocated to
     such certificate; and

          - in the case of a junior certificate, such certificate's pro rata
     share, if any, of the Junior Certificate Writedown Amount (as defined
     below) and the Class PO Deferred Payment Writedown Amount (as defined
     below) for previous Distribution Dates.

     The aggregate "Notional Principal Balance" of the Class S Certificates as
of any Distribution Date will equal the aggregate Scheduled Principal Balance of
the Outstanding Mortgage Loans which are Non-discount Mortgage Loans as of the
first day of the calendar month preceding such Distribution Date. The initial
aggregate Notional Principal Balance of the Class S Certificates is expected to
be approximately $476,820,703.

     As of any Distribution Date, the "Junior Certificate Writedown Amount" will
equal the amount by which (a) the sum of the Class Certificate Principal
Balances of all of the certificates, after giving effect to the distribution of
principal and the allocation of Realized Losses in reduction of the Certificate
Principal Balances of the certificates on such Distribution Date, exceeds (b)
the Pool Scheduled Principal Balance on the first day of the month of such
Distribution Date less any Deficient Valuations occurring on or prior to the
Bankruptcy Coverage Termination Date.

     For any Distribution Date, the "Class PO Deferred Payment Writedown Amount"
will equal the amount, if any, distributed on such date in respect of the Class
PO Deferred Amount pursuant to priority fourth of the second paragraph under
"-- Allocation of Available Funds" above. The Junior Certificate Writedown
Amount and the Class PO Deferred Payment Writedown Amount will be allocated to
the classes of junior certificates in inverse order of priority, until the Class
Certificate Principal Balance of each such class has been reduced to zero.

     With respect to any Distribution Date, the "Net Interest Shortfall" will
equal the excess of the aggregate Interest Shortfalls with respect to such
Distribution Date over the Compensating Interest Payment, if any, for such
Distribution Date. See "The Pooling and

                                      S-30
<PAGE>   31

Servicing Agreement -- Servicing Compensation, Compensating Interest and Payment
of Expenses" herein for a definition of "Compensating Interest Payment."

     With respect to any Distribution Date, an "Interest Shortfall" in respect
of a mortgage loan will result from:

          (1) any voluntary prepayment of principal in full on such mortgage
     loan received from the sixteenth day (or, in the case of the first
     Distribution Date, from the Cut-off Date) through the last day of the month
     preceding such Distribution Date;

          (2) any partial prepayment of principal on such mortgage loan by the
     mortgagor during the month preceding such Distribution Date; or

          (3) a reduction in the interest rate on such mortgage loan due to the
     application of the Soldiers' and Sailors' Civil Relief Act of 1940 whereby,
     in general, members of the Armed Forces who entered into mortgages prior to
     the commencement of military service may have the interest rates on those
     mortgage loans reduced for the duration of their active military service.
     See "Certain Legal Aspects of the Mortgage Loans -- Soldiers' and Sailors'
     Civil Relief Act" in the prospectus.

     As to any Distribution Date and any mortgage loan with respect to which a
prepayment in full has occurred as described above, the resulting "Interest
Shortfall" generally will equal the difference between (a) one month's interest
at the mortgage interest rate net of the applicable servicing fee (the "Net
Mortgage Rate") on the Scheduled Principal Balance of such mortgage loan, and
(b) the amount of interest at the Net Mortgage Rate actually received with
respect to such mortgage loan. In the case of a partial prepayment, the
resulting "Interest Shortfall" will equal one month's interest at the applicable
Net Mortgage Rate on the amount of such prepayment.

     Any Net Interest Shortfall, the interest portion of any Excess Losses
through the Cross-Over Date and, after the Cross-Over Date, the interest portion
of any Realized Losses (see "-- Allocation of Realized Losses on the
Certificates" below) will, on each Distribution Date, be allocated among all the
outstanding certificates entitled to distributions of interest in proportion to
the amount of Accrued Certificate Interest that would have been allocated
thereto in the absence of such shortfall and losses. See "The Pooling and
Servicing Agreement -- Servicing Compensation, Compensating Interest and Payment
of Expenses" herein.

     The interest portion of any Realized Losses (other than Excess Losses)
occurring prior to the Cross-Over Date will not be allocated among any
certificates, but will reduce the amount of Available Funds on the related
Distribution Date. As a result of the subordination of the junior certificates
in right of distribution, such losses will be borne first by the outstanding
junior certificates in inverse order of priority.

     If Available Funds are insufficient on any Distribution Date to distribute
the aggregate Accrued Certificate Interest on the senior certificates entitled
to distributions of interest to their certificateholders, any shortfall in
available amounts will be allocated among such classes of senior certificates in
proportion to the amounts of Accrued Certificate Interest otherwise
distributable thereon. The amount of any such undistributed Accrued Certificate
Interest will be added to the amount of interest to be distributed on the senior
certificates entitled to distributions of interest on subsequent Distribution
Dates in accordance with priority second of the second paragraph under
"-- Allocations of Available Funds" above. No interest will accrue on any
Accrued Certificate Interest remaining undistributed from previous Distribution
Dates.

                                      S-31
<PAGE>   32

Determination of LIBOR for the LIBOR Certificates

     LIBOR will be determined on the second London banking day immediately
preceding the beginning of each Interest Accrual Period, other than the first
Interest Accrual Period. A London banking day is a date on which banks are open
for dealing in foreign currency and exchange in London. Each date on which LIBOR
is calculated is a "LIBOR Determination Date."

     LIBOR will be the rate, expressed as an annual percentage, for deposits in
U.S. Dollars for a period of one month that appears on Telerate Page 3750 as of
11:00 a.m., London time, on the relevant LIBOR Determination Date. This rate is
referred to as the British Bankers' Association Interest Settlement Rate. If a
rate does not appear on Telerate Page 3750 as of 11:00 a.m., London time, on the
applicable LIBOR Determination Date, the Trustee will request the principal
London office of each of four major reference banks in the London interbank
market selected by the Trustee to provide such banks' respective offered
quotations (expressed as a percentage per annum) to prime banks in the London
interbank market for deposits in U.S. Dollars for a period of one month as of
11:00 a.m., London time, on such LIBOR Determination Date. If at least two such
offered quotations are so provided, LIBOR will be the arithmetic mean of such
quotations. If fewer than two such quotations are so provided, the Trustee will
request each of three major banks in New York City selected by the Trustee to
provide such banks' respective rates (expressed as a percentage per annum) for
loans in U.S. Dollars to leading European banks for a period of one month as of
approximately 11:00 a.m., New York City time, on the first day of the Interest
Accrual Period, and LIBOR will be the arithmetic mean of such rates. If on any
LIBOR Determination Date the Trustee is required but is unable to determine
LIBOR in the manner provided in the immediately preceding sentence, LIBOR for
the related Interest Accrual Period will be LIBOR as determined on the previous
LIBOR Determination Date, or, in the case of the first LIBOR Determination Date,
4.9037% per annum.

     The establishment of LIBOR by the Trustee and the Trustee's subsequent
calculation of the rates of interest applicable to the LIBOR Certificates for
the relevant Interest Accrual Period, in the absence of manifest error, will be
final and binding. The interest rates on the LIBOR Certificates for any Interest
Accrual Period may be obtained by calling the Trustee at (617) 664-5500.

Principal

     Distributions in reduction of the principal balance of each certificate
entitled to principal distributions will be made on each Distribution Date.

     All payments and other amounts received in respect of principal of the
mortgage loans will be allocated between (1) the senior certificates entitled to
principal distributions and the junior certificates, on the one hand, and (2)
the Class PO Certificates, on the other, in each case based on the applicable
Non-PO Percentage and the applicable PO Percentage, respectively, of such
amounts.

     The "Non-PO Percentage" with respect to any mortgage loan with a Net
Mortgage Rate ("NMR") less than 6.50% per annum (each such mortgage loan, a
"Discount Mortgage Loan") will be the fraction, expressed as a percentage, equal
to NMR / 6.50%. The "Non-PO Percentage" with respect to any mortgage loan with a
Net Mortgage Rate equal to or greater than 6.50% (each such mortgage loan, a
"Non-discount Mortgage Loan") will be 100%. The "PO Percentage" with respect to
any Discount Mortgage Loan

                                      S-32
<PAGE>   33

will be the fraction, expressed as a percentage, equal to
(6.50% -- NMR) / 6.50%. The "PO Percentage" with respect to any Non-discount
Mortgage Loan will be 0%.

     The initial Class Certificate Principal Balance of the Class PO
Certificates, which are not offered hereby, will be approximately $448,236,
subject to the variance described herein.

     Distributions in reduction of the Class Certificate Principal Balance of
each class of senior certificates entitled to principal distributions will be
made on each Distribution Date under priority third in the second paragraph
under "-- Allocation of Available Funds" above. In accordance with priority
third, the Available Funds remaining after the distribution of interest will be
allocated to such senior certificates in an aggregate amount not to exceed the
sum of the Senior Optimal Principal Amount and the Class PO Principal
Distribution Amount for such Distribution Date. Distributions in reduction of
the Class Certificate Principal Balances of the Class M, Class B1 and Class B2
Certificates will be made pursuant to priorities fifth, sixth and seventh,
respectively, of the second paragraph under "-- Allocation of Available Funds"
above. In accordance with each such priority, the Available Funds, if any,
remaining after distributions of principal and interest on the senior
certificates and payments in respect of the Class PO Deferred Amount on such
Distribution Date will be allocated to the Class M, Class B1 and Class B2
Certificates in an amount equal to each such class's Allocable Share for such
Distribution Date, provided that no distribution of principal will be made on
any such class until any class ranking prior thereto has received distributions
of interest and principal, and such class has received distributions of
interest, on such Distribution Date. The Class A3 Certificates will not receive
any distributions in respect of prepayments or certain other unscheduled
recoveries of principal on the mortgage loans during the first five years after
the date of initial issuance of the certificates, except as otherwise described
herein on or following the earlier of the Group I Final Distribution Date and
the Cross-Over Date.

     The "Senior Optimal Principal Amount" with respect to each Distribution
Date will be an amount equal to the sum of:

          (1) the Senior Percentage (as defined herein) of the applicable Non-PO
     Percentage of all scheduled payments of principal due on each mortgage loan
     on the first day of the month in which the Distribution Date occurs, as
     specified in the amortization schedule at the time applicable thereto after
     adjustment for previous principal prepayments and the principal portion of
     Debt Service Reductions after the Bankruptcy Coverage Termination Date, but
     before any adjustment to such amortization schedule by reason of any other
     bankruptcy or similar proceeding or any moratorium or similar waiver or
     grace period;

          (2) the Senior Prepayment Percentage (as defined herein) of the
     applicable Non-PO Percentage of the Scheduled Principal Balance of each
     mortgage loan which was the subject of a prepayment in full received by
     GECMSI (or, in the case of a mortgage loan master-serviced by GECMSI, of
     which GECMSI receives notice) during the applicable Prepayment Period (as
     defined below);

          (3) the Senior Prepayment Percentage of the applicable Non-PO
     Percentage of all partial prepayments of principal received during the
     applicable Prepayment Period;

          (4) the lesser of:

             (a) the Senior Prepayment Percentage of the applicable Non-PO
        Percentage of the sum of (w) the net liquidation proceeds allocable to
        principal

                                      S-33
<PAGE>   34

        on each mortgage loan which became a Liquidated Mortgage Loan during the
        related Prepayment Period, other than mortgage loans described in clause
        (4)(a)(x), and (x) the principal balance of each mortgage loan that was
        purchased by a private mortgage insurer during the related Prepayment
        Period as an alternative to paying a claim under the related insurance
        policy; and

             (b) the Senior Percentage of the applicable Non-PO Percentage of
        the sum of (w) the Scheduled Principal Balance of each mortgage loan
        which became a Liquidated Mortgage Loan during the related Prepayment
        Period, other than mortgage loans described in clause (4)(b)(x), and (x)
        the Scheduled Principal Balance of each mortgage loan that was purchased
        by a private mortgage insurer during the related Prepayment Period as an
        alternative to paying a claim under the related insurance policy minus
        (y) the Senior Percentage of the applicable Non-PO Percentage of the
        principal portion of Excess Losses (other than Debt Service Reductions)
        during the related Prepayment Period; and

          (5) the Senior Prepayment Percentage of the applicable Non-PO
     Percentage of the sum of (a) the Scheduled Principal Balance of each
     mortgage loan which was repurchased by GECMSI in connection with such
     Distribution Date and (b) the difference, if any, between the Scheduled
     Principal Balance of a mortgage loan that has been replaced by GECMSI with
     a substitute mortgage loan pursuant to the Agreement in connection with
     such Distribution Date and the Scheduled Principal Balance of such
     substitute mortgage loan.

     With respect to any mortgage loan that was the subject of a voluntary
prepayment in full and any Distribution Date, the "Prepayment Period" is the
period from the sixteenth day of the month preceding the month of such
Distribution Date (or, in the case of the first Distribution Date, from the
Cut-off Date) through the fifteenth day of the month of such Distribution Date.
With respect to any other unscheduled prepayment of principal of any mortgage
loan and any Distribution Date, the "Prepayment Period" is the month preceding
the month of such Distribution Date.

     The "Class A3 Principal Distribution Amount" for any Distribution Date will
equal the sum of:

          (a) the total of the amounts described in clauses (1) and (4) of the
     definition of Senior Optimal Principal Amount (without application of the
     Senior Percentage or the Senior Prepayment Percentage) for such date
     multiplied by the Class A3 Percentage for such date; and

          (b) the total of the amounts described in clauses (2), (3) and (5) of
     the definition of Senior Optimal Principal Amount (without application of
     the Senior Prepayment Percentage) for such date multiplied by the product
     of (x) the Class A3 Prepayment Distribution Percentage for such date and
     (y) the Class A3 Percentage for such date.

     Notwithstanding the foregoing, (1) on the Group I Final Distribution Date,
the Class A3 Principal Distribution Amount will be increased by any Group I
Senior Principal Distribution Amount remaining after distributions of principal
have been made on the Group I Senior Certificates, and (2) following the Group I
Final Distribution Date, the Class A3 Principal Distribution Amount will equal
the Senior Optimal Principal Amount.

     The "Class A3 Percentage" for any Distribution Date will equal the
percentage (carried to six places rounded up) obtained by dividing (1) the
aggregate Certificate

                                      S-34
<PAGE>   35

Principal Balance of the Class A3 Certificates immediately preceding such
Distribution Date by (2) the aggregate Certificate Principal Balance of all the
certificates (other than the Class PO Certificates) immediately preceding such
Distribution Date. The initial Class A3 Percentage is expected to be
approximately 9.57%.

     The "Class A3 Prepayment Distribution Percentage" for any Distribution Date
will equal 0% through the Distribution Date in June 2004; 30% thereafter through
the Distribution Date in June 2005; 40% thereafter through the Distribution Date
in June 2006; 60% thereafter through the Distribution Date in June 2007; 80%
thereafter through the Distribution Date in June 2008; and 100% thereafter.

     The "Group I Final Distribution Date" is the Distribution Date on which the
Class Certificate Principal Balance of each of the Group I Senior Certificates
has been reduced to zero.

     The "Senior Percentage" on any Distribution Date will equal the lesser of
100% and the percentage (carried to six places rounded up) obtained by dividing
the aggregate Certificate Principal Balances of all the senior certificates
(other than the Class PO Certificates) immediately preceding such Distribution
Date by the aggregate Certificate Principal Balances of all the certificates
(other than the Class PO Certificates) immediately preceding such Distribution
Date. The initial Senior Percentage is expected to be approximately 95.75%.

     The "Senior Prepayment Percentage" on any Distribution Date occurring
during the periods set forth below will be as follows:

<TABLE>
<CAPTION>
PERIOD (DATES INCLUSIVE)                  SENIOR PREPAYMENT PERCENTAGE
- ------------------------                 -------------------------------
<S>                                      <C>
July 1999 - June 2004................    100%
July 2004 - June 2005................    Senior Percentage plus 70% of
                                         the Junior Percentage
July 2005 - June 2006................    Senior Percentage plus 60% of
                                         the Junior Percentage
July 2006 - June 2007................    Senior Percentage plus 40% of
                                         the Junior Percentage
July 2007 - June 2008................    Senior Percentage plus 20% of
                                         the Junior Percentage
July 2008 and thereafter.............    Senior Percentage
</TABLE>

     Notwithstanding the foregoing, if the Senior Percentage on any Distribution
Date exceeds the initial Senior Percentage, the Senior Prepayment Percentage for
such Distribution Date will equal 100%.

     In addition, no reduction of the Senior Prepayment Percentage below the
level in effect for the most recent prior period specified in the table above
shall be effective on any Distribution Date (such limitation being the "Senior
Prepayment Percentage Stepdown Limitation") unless, as of the last day of the
month preceding such Distribution Date, either:

     (A)(1) the aggregate Scheduled Principal Balance of mortgage loans
            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) does not
            exceed 50% of the aggregate Class Certificate Principal Balance of
            the junior certificates as of such date; and

                                      S-35
<PAGE>   36

         (2) cumulative Realized Losses do not exceed:

            (a)  30% of the aggregate Class Certificate Principal Balance of the
                  junior certificates as of the date of issuance of the
                  certificates (the "Original Junior Principal Balance") if such
                  Distribution Date occurs between and including July 2004 and
                  June 2005;

            (b)  35% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2005 and
                  June 2006;

            (c)  40% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2006 and
                  June 2007;

            (d)  45% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2007 and
                  June 2008; and

            (e)  50% of the Original Junior Principal Balance if such
                  Distribution Date occurs during or after July 2008; or

     (B)(1) the aggregate Scheduled Principal Balance of mortgage loans
            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), averaged
            over the last three months, as a percentage of the aggregate
            Scheduled Principal Balance of all mortgage loans averaged over the
            last three months, does not exceed 4%; and

         (2) cumulative Realized Losses do not exceed:

            (a)  10% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2004 and
                  June 2005;

            (b)  15% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2005 and
                  June 2006;

            (c)  20% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2006 and
                  June 2007;

            (d)  25% of the Original Junior Principal Balance if such
                  Distribution Date occurs between and including July 2007 and
                  June 2008; and

            (e)  30% of the Original Junior Principal Balance if such
                  Distribution Date occurs during or after July 2008.

     The "Class PO Principal Distribution Amount" with respect to each
Distribution Date will be an amount equal to the sum of:

          (1) the applicable PO Percentage of all scheduled payments of
     principal due on each mortgage loan on the first day of the month in which
     the Distribution Date occurs, as specified in the amortization schedule at
     the time applicable thereto, after adjustment for previous principal
     prepayments and the principal portion of Debt Service Reductions after the
     Bankruptcy Coverage Termination Date, but before any adjustment to such
     amortization schedule by reason of any other bankruptcy or similar
     proceeding or any moratorium or similar waiver or grace period;

          (2) the applicable PO Percentage of the Scheduled Principal Balance of
     each mortgage loan which was the subject of a prepayment in full received
     by GECMSI, or, in the case of a mortgage loan master-serviced by GECMSI, of
     which GECMSI receives notice, during the related Prepayment Period;

                                      S-36
<PAGE>   37

          (3) the applicable PO Percentage of all partial prepayments of
     principal received during the related Prepayment Period;

          (4) the applicable PO Percentage of the sum of (a) the net liquidation
     proceeds allocable to principal on each mortgage loan which became a
     Liquidated Mortgage Loan during the related Prepayment Period, other than
     mortgage loans described in clause (b), and (b) the principal balance of
     each mortgage loan that was purchased by a private mortgage insurer during
     the related Prepayment Period as an alternative to paying a claim under the
     related insurance policy; and

          (5) the applicable PO Percentage of the sum of (a) the Scheduled
     Principal Balance of each mortgage loan which was repurchased by GECMSI in
     connection with such Distribution Date and (b) the difference, if any,
     between the Scheduled Principal Balance of a mortgage loan that has been
     replaced by GECMSI with a substitute mortgage loan pursuant to the
     Agreement in connection with such Distribution Date and the Scheduled
     Principal Balance of such substitute mortgage loan.

     For purposes of clauses (2) and (5) above, the Scheduled Principal Balance
of a mortgage loan will be reduced by the amount of any Deficient Valuation that
occurred on or before the Bankruptcy Coverage Termination Date.

     The "Junior Percentage" on any Distribution Date will equal 100% minus the
Senior Percentage. The "Junior Prepayment Percentage" will equal 100% minus the
Senior Prepayment Percentage, except that on any Distribution Date after the
respective Class Certificate Principal Balances of the senior certificates
(other than the Class PO Certificates) have each been reduced to zero (the
"Senior Final Distribution Date"), the Junior Prepayment Percentage will equal
100%. The initial Junior Percentage is expected to be approximately 4.25%.

     The "Junior Optimal Principal Amount" with respect to each Distribution
Date will be an amount equal to the sum of the following (but in no event
greater than the aggregate Class Certificate Principal Balances of the junior
certificates immediately prior to such Distribution Date):

          (1) the Junior Percentage of the applicable Non-PO Percentage of all
     scheduled payments of principal due on each outstanding mortgage loan on
     the first day of the month in which the Distribution Date occurs, as
     specified in the amortization schedule at the time applicable thereto,
     after adjustment for previous principal prepayments and the principal
     portion of Debt Service Reductions after the Bankruptcy Coverage
     Termination Date, but before any adjustment to such amortization schedule
     by reason of any other bankruptcy or similar proceeding or any moratorium
     or similar waiver or grace period;

          (2) the Junior Prepayment Percentage of the applicable Non-PO
     Percentage of the Scheduled Principal Balance of each mortgage loan which
     was the subject of a prepayment in full received by GECMSI, or, in the case
     of a mortgage loan master-serviced by GECMSI, of which GECMSI receives
     notice, during the related Prepayment Period;

          (3) the Junior Prepayment Percentage of the applicable Non-PO
     Percentage of all partial prepayments of principal received during the
     related Prepayment Period, plus, on the Senior Final Distribution Date,
     100% of any Senior Optimal Principal Amount remaining undistributed on such
     date;

                                      S-37
<PAGE>   38

          (4) the amount, if any, by which the sum of (a) the applicable Non-PO
     Percentage of the net liquidation proceeds allocable to principal received
     during the related Prepayment Period in respect of each Liquidated Mortgage
     Loan, other than mortgage loans described in clause (b) and (b) the
     applicable Non-PO Percentage of the principal balance of each mortgage loan
     that was purchased by a private mortgage insurer during the related
     Prepayment Period as an alternative to paying a claim under the related
     insurance policy exceeds (c) the sum of the amounts distributable to the
     senior certificateholders (other than the holders of the Class PO
     Certificates) under clause (4) of the definition of Senior Optimal
     Principal Amount on such Distribution Date; and

          (5) the Junior Prepayment Percentage of the applicable Non-PO
     Percentage of the sum of (a) the Scheduled Principal Balance of each
     mortgage loan which was repurchased by GECMSI in connection with such
     Distribution Date and (b) the difference, if any, between the Scheduled
     Principal Balance of a mortgage loan that has been replaced by GECMSI with
     a substitute mortgage loan pursuant to the Agreement in connection with
     such Distribution Date and the Scheduled Principal Balance of such
     substitute mortgage loan.

     The "Allocable Share" with respect to any class of junior certificates on
any Distribution Date will generally equal such class's pro rata share (based on
the Class Certificate Principal Balance of each class entitled thereto) of each
of the components of the Junior Optimal Principal Amount described above;
provided, that, except as described in the second succeeding sentence, no Class
B1, Class B2, Class B3, Class B4 or Class B5 Certificate (together, the "Class B
Certificates") shall be entitled on any Distribution Date to receive
distributions pursuant to clauses (2), (3) and (5) of the definition of Junior
Optimal Principal Amount unless the Class Prepayment Distribution Trigger for
the related class is satisfied for such Distribution Date.

     The "Class Prepayment Distribution Trigger" for a class of Class B
Certificates for any Distribution Date is satisfied if the fraction (expressed
as a percentage), the numerator of which is the aggregate Class Certificate
Principal Balance of such class and each class subordinate thereto, if any, and
the denominator of which is the Pool Scheduled Principal Balance with respect to
such Distribution Date, equals or exceeds such percentage calculated as of the
date of issuance of the certificates. If, on any Distribution Date, the Class
Certificate Principal Balance of the Class M Certificates or of any class of
Class B Certificates for which the related Class Prepayment Distribution Trigger
was satisfied on such Distribution Date is reduced to zero, any amounts
distributable to such class under clauses (2), (3) and (5) of the definition of
Junior Optimal Principal Amount, to the extent of such class's remaining
Allocable Share, shall be distributed to the remaining classes of junior
certificates in reduction of their respective Class Certificate Principal
Balances in order of priority. If the Class Prepayment Distribution Trigger is
not satisfied for any class of Class B Certificates on any Distribution Date,
this may have the effect of accelerating the amortization of more senior ranking
classes of junior certificates because the amount otherwise distributable to
such class under clauses (2), (3) and (5) of the definition of Junior Optimal
Principal Amount will be distributable among the outstanding Class M
Certificates and each class of the Class B Certificates as to which the related
Class Prepayment Distribution Trigger has been satisfied on a pro rata basis
subject to the priority of payments described herein. On any Distribution Date,
any reduction in funds available for distribution to the classes of junior
certificates resulting from a distribution of the Class PO Deferred Amount to
the Class PO Certificates will be allocated to the

                                      S-38
<PAGE>   39

classes of junior certificates, in reduction of the Allocable Shares thereof, in
inverse order of priority.

PRINCIPAL DISTRIBUTIONS ON THE CLASS A7, CLASS A13, CLASS A15 AND CLASS A16
CERTIFICATES

General

     Arrangements have been made to distribute principal on the Class A7, Class
A13, Class A15 and Class A16 Certificates (the "Designated Retail Certificates")
in $1,000 increments. These arrangements are intended to accommodate retail
investors who may not wish to receive their principal distributions in amounts
smaller than $1,000 and to give a limited payment priority to investors who
request early payment. As a result, only some certificates of any of these
classes will receive distributions of principal on any given date on which
principal would otherwise be distributed on all certificates of such class.

     Principal payments on each class of Designated Retail Certificates will be
made as follows:

     - The amount of principal, if any, distributable on each Distribution Date
       on each class as a whole will be determined as described under
       "Distributions on the Certificates -- Allocation of Available Funds"
       above.

     - The distribution of principal on each class will be rounded upward to an
       integral multiple of $1,000 by withdrawing funds from the related
       Rounding Account (as defined below), if necessary.

     - The Trustee will remit distributions of principal to DTC in integral
       multiples of $1,000. DTC will then remit such distributions to its
       participants on behalf of the beneficial owners of each class. The
       participants and the relevant Financial Intermediaries in turn will be
       responsible for remitting principal payments to their customers as
       described above.

     - Holders of each class of these certificates who have properly made a
       Principal Distribution Request, as described below, will be paid before
       other holders of such class, to the extent of available principal for
       such class.

     - Principal Distribution Requests submitted on behalf of Deceased Holders
       (as defined below) will be entitled to a first priority, and requests
       from beneficial owners other than Deceased Holders ("Living Holders")
       will be entitled to a second priority.

     - If more principal is available for distribution on a class of these
       certificates on a Distribution Date than the amount covered by valid
       Principal Distribution Requests, beneficial owners of such class will
       receive distributions of principal on such Distribution Date in integral
       multiples of $1,000 pursuant to DTC's random lot procedures, to the
       extent of such excess.

Notwithstanding the foregoing, on and after the Cross-Over Date, distributions
on the Designated Retail Certificates will be made pro rata among all holders of
the certificates of such classes and will not be made in integral multiples of
$1,000, by requested distributions or by random lot.

     There can be no assurance that each participant receiving distributions of
principal made by random lot, or in accordance with Principal Distribution
Requests, and that each Financial Intermediary in the chain to beneficial
owners, will remit distributions to their customers by random lot or in
accordance with Principal Distribution Requests. Investors should ask their
brokers or other intermediaries what allocation procedures they use.

                                      S-39
<PAGE>   40

Neither GECMSI nor the Trustee will be responsible for the manner in which DTC,
any participant or any Financial Intermediary allots distributions on these
certificates.

     The Agreement will provide that, in the event definitive physical
certificates are issued in respect of a class of Designated Retail Certificates
receiving principal payments by random lot, the Trustee will determine which
physical certificates of such class will receive principal distributions on such
class on the applicable Distribution Date using procedures comparable to those
described herein.

     Due to the procedures for distributions described herein, there can be no
assurance that any particular beneficial owner of a Designated Retail
Certificate will receive a principal distribution on any Distribution Date. The
timing and amount of distributions in reduction of the Class Certificate
Principal Balance of any of these certificates is highly uncertain, and such
distributions may be made earlier or later than the date, or in amounts
different from that, desired by a beneficial owner of such certificate.
Accordingly, the allocation of principal distributions in respect of such
certificates may result in actual yields to investors and weighted average lives
that vary significantly from those anticipated, and such yields and weighted
average lives will vary among the holders of each such class of certificates.
See the related risk factor on page S-11.

Rounding of Distributions of Principal

     For purposes of distributions of principal on each class of Designated
Retail Certificates, a rounding account (each, a "Rounding Account") will be
established on behalf of each such class on the date of issuance of the
certificates by the deposit of $999.99 in a segregated, non-interest bearing
account maintained by the Trustee pursuant to the Agreement. Prior to the
Cross-Over Date, whenever distributions of principal are to be made on a class
of Designated Retail Certificates, the amount allocable to each such class will
be rounded upward to an integral multiple of $1,000, if necessary.

     On the first Distribution Date when distributions of principal will be made
on a class of Designated Retail Certificates, the Trustee will withdraw from the
related Rounding Account any funds needed to round the amount allocable to such
class upward to the next integral multiple of $1,000 and will distribute the
rounded amount on such class. On the next Distribution Date when distributions
of principal will be made on such class of certificates, the Trustee will first
apply the amount allocable to such class in respect of principal to repay any
amount withdrawn from the related Rounding Account on the previous Distribution
Date; then it will round the remainder of such allocable amount upward to the
next integral multiple of $1,000 by making another withdrawal from the related
Rounding Account and will distribute this amount on such class. This process
will continue on subsequent Distribution Dates prior to the Cross-Over Date
until the Class Certificate Principal Balance of such class of certificates has
been reduced to zero.

     Upon the earlier of the Cross-Over Date and the next Distribution Date
after the Class Certificate Principal Balance of a class of Designated Retail
Certificates is reduced to zero, the balance in the related Rounding Account
will be restored to $999.99 from Available Funds otherwise available for
distribution to other classes of certificates and will be distributed to the
holder of the Class R Certificate, and the related Rounding Account will be
terminated.

     As a result of the operation of each Rounding Account, the aggregate
distributions made in reduction of the Class Certificate Principal Balance of a
class of Designated Retail Certificates on each Distribution Date may be
slightly more or less than would be the case in the absence of such rounding
procedures, but such difference in respect of each such class will be no more
than $999.99 on such Distribution Date. Under no

                                      S-40
<PAGE>   41

circumstances will the sum of all distributions made in reduction of the Class
Certificate Principal Balance of a class of Designated Retail Certificates
through any Distribution Date be less than the sum that would have resulted in
the absence of such rounding procedures.

Principal Distribution Requests and Withdrawals

     Each beneficial owner of a Designated Retail Certificate may request that a
distribution of principal on such certificate be made on a Distribution Date, in
any integral multiple of $1,000, by delivering a written request (each, a
"Principal Distribution Request") to the DTC participant or Financial
Intermediary that maintains such beneficial owner's account. The participant
should in turn make the request to DTC (or, in the case of a Financial
Intermediary, such firm must notify the related participant of such request,
which participant should make the request to DTC) on a form required by DTC and
provided to the participant.

     In the case of a request on behalf of a Deceased Holder, a certified copy
of the death certificate and any additional appropriate evidence of death and
any tax waivers must be forwarded to the Trustee under separate cover.
Furthermore, such requests of Deceased Holders that are incomplete may not be
honored by the Trustee and, if not honored, will lose their priority and must be
re-requested. Upon receipt of such Principal Distribution Request, DTC will date
and time-stamp such request. Such requests will be honored on any Distribution
Date only to the extent that they are received by DTC on or before the Record
Date for such Distribution Date. DTC may establish such procedures as it deems
fair and equitable to establish the order of receipt of requests for such
distributions received by it on the same day. Such requests shall be made
available to the Trustee through the facilities of DTC, Principal Distribution
Requests delivered to DTC after the Record Date for a particular Distribution
Date and requests received in a timely manner but not accepted with respect to a
particular Distribution Date will be treated as Principal Distribution Requests
for the next succeeding Distribution Date and each succeeding Distribution Date
thereafter until each request is accepted or is withdrawn as described below.

     In the case of Principal Distribution Requests on behalf of Living Holders,
DTC will establish a new order of priority for each Distribution Date. This
order will apply both to previously unsatisfied Principal Distribution Requests
and to newly submitted requests. A Principal Distribution Request submitted on
behalf of a Living Holder who later dies will become entitled to the priority of
a newly submitted request on behalf of a Deceased Holder. Such priority will be
effective for each subsequent Distribution Date if DTC has received a certified
copy of the death certificate for such Deceased Holder and any additional
appropriate evidence of death and any requested tax waivers by the last business
day of the preceding calendar month. Each Principal Distribution Request
submitted by a beneficial owner of a Designated Retail Certificate will be held
by DTC until such request has been accepted or has been withdrawn in writing as
described below.

     On any Distribution Date on which principal distributions are made on a
class of Designated Retail Certificates, priority of distributions of principal
in respect of such class will be given to holders of such class on whose behalf
Principal Distribution Requests have been duly received and not withdrawn. DTC
will honor Principal Distribution Requests in the following order of priority:

          first, DTC will honor Principal Distribution Requests submitted on
     behalf of Deceased Holders of such class in the order of their receipt by
     DTC, until such

                                      S-41
<PAGE>   42

     requests have been honored in an amount up to $100,000 for each requesting
     Deceased Holder; and

          second, DTC will honor Principal Distribution Requests submitted on
     behalf of Living Holders of such class in the order of priority established
     by DTC, until such requests have been honored in an amount of up to $10,000
     for each requesting Living Holder.

     Thereafter, DTC will honor Principal Distribution Requests submitted on
behalf of each Deceased Holder as provided in priority first up to a second
$100,000 and thereafter, Principal Distribution Requests submitted on behalf of
each Living Holder as provided in priority second up to a second $10,000. This
sequence of priorities will be repeated until all Principal Distribution
Requests have been honored to the extent of amounts available for distribution
in reduction of the Class Certificate Principal Balance of such class of the
Designated Retail Certificates.

     If the amount available for distribution in reduction of the Class
Certificate Principal Balance of any class of Designated Retail Certificates on
a given Distribution Date is insufficient to honor all Principal Distribution
Request for such class, such requests will be honored on succeeding Distribution
Dates as principal becomes available for distribution on such class, without the
need for the holders to resubmit their Principal Distribution Requests.

     On any Distribution Date on which principal distributions are to be made on
the Designated Retail Certificates, the Trustee will advise DTC as to which
Principal Distribution Requests should be honored, and in what amounts.

     Any beneficial owner of a Designated Retail Certificates with respect to
which a Principal Distribution Request has been made may withdraw such request
by so notifying in writing the participant or Financial Intermediary that
maintains such beneficial owner's account (each such withdrawal, a
"Withdrawal"). The participant should forward the Withdrawal to DTC on a form
required by DTC. In the event that such account is maintained by a Financial
Intermediary, such Financial Intermediary should notify the related participant,
which in turn should forward the Withdrawal of such request on such form to DTC.
If such Withdrawal has not been received by DTC on or before the Record Date for
the applicable Distribution Date, the previously made Principal Distribution
Request will be irrevocable with respect to such Distribution Date.

     Neither GECMSI nor the Trustee will be liable for any delay or failure by
any DTC participant or any Financial Intermediary in the delivery of Principal
Distribution Requests or Withdrawals to DTC.

     If the amount available for distribution in reduction of the Class
Certificate Principal Balance of a class of Designated Retail Certificates on
any Distribution Date exceeds the amount needed to honor all Principal
Distribution Requests with respect to such class on such date, additional
principal distributions, in integral multiples equal to $1,000, will be made to
the holders of such class in accordance with DTC's established random lot
procedures, without regard to whether or not such certificateholders have
submitted Principal Distribution Requests.

Definition of "Deceased Holder"

     A "Deceased Holder" is a beneficial owner of a Designated Retail
Certificate who was living at the time such interest was acquired and whose
executor or other authorized representative causes to be furnished to the
Trustee a certified copy of the death certificate

                                      S-42
<PAGE>   43

for such Deceased Holder and any additional evidence of death satisfactory to
the Trustee and any tax waivers requested by the Trustee.

     Designated Retail Certificates beneficially owned by tenants by the
entirety, joint tenants or tenants in common will be considered to be
beneficially owned by a single owner. The death of a tenant by the entirety,
joint tenant or tenant in common will be deemed to be the death of the
beneficial owner, and the Designated Retail Certificates so beneficially owned
will be eligible for priority with respect to distributions of principal,
subject to the limitations described herein.

     Designated Retail Certificates beneficially owned by a trust will be
considered to be beneficially owned by each beneficiary of the trust to the
extent of such beneficiary's beneficial interest therein, but in no event will a
trust's beneficiaries collectively be deemed to be beneficial owners of a number
of individual Designated Retail Certificates greater than the number of
individual Designated Retail Certificates of which such trust is the owner. The
death of the beneficiary of a trust will be deemed to be the death of a
beneficial owner of the Designated Retail Certificates beneficially owned by the
trust to the extent of such beneficiary's beneficial interest in such trust. The
death of an individual who was a tenant by the entirety, joint tenant or tenant
in common in a tenancy that is the beneficiary of a trust will be deemed to be
the death of the beneficiary of the trust.

     The death of a person who, during his or her lifetime, was entitled to
substantially all of the beneficial ownership interest in a Designated Retail
Certificate will be deemed to be the death of the beneficial owner of the
Designated Retail Certificate regardless of the registration of the ownership,
if such beneficial ownership interest can be established to the satisfaction of
the Trustee.

     Expenses incurred by the Trustee in an effort to determine the beneficial
ownership interest, including, without limitation, attorney's fees, shall be
paid by the beneficial owner. Such beneficial interest will be deemed to exist
in typical cases of street name or nominee ownership, ownership by a trustee,
ownership under the Uniform Gift to Minors Act and community property or other
joint ownership arrangements between a husband and wife. Beneficial interest
shall include the power to sell, transfer, or otherwise dispose of a Designated
Retail Certificate and the right to receive the proceeds therefrom, as well as
interest and distributions in reduction of principal balance payable with
respect thereto. As used in this prospectus supplement, a request for a
distribution of principal of a Designated Retail Certificate by a Deceased
Holder shall mean a request by the personal representative, surviving tenant by
the entirety, surviving joint tenant or surviving tenant in common of such
Deceased Holder.

ALLOCATION OF REALIZED LOSSES ON THE CERTIFICATES

     A "Realized Loss" is

     - as to any Liquidated Mortgage Loan (as defined below), the unpaid
       principal balance thereof plus accrued and unpaid interest thereon at the
       Net Mortgage Rate through the last day of the month of liquidation, less
       the net proceeds from the liquidation of, and any insurance proceeds
       from, such mortgage loan and the related mortgaged property.

     - as to any mortgage loan, a Deficient Valuation (as defined below).

     A "Liquidated Mortgage Loan" is any defaulted mortgage loan as to which
GECMSI has determined that all amounts which it expects to recover from or on
account of such mortgage loan have been recovered.

                                      S-43
<PAGE>   44

     A Deficient Valuation may result from the personal bankruptcy of a
mortgagor if the bankruptcy court establishes the value of the mortgaged
property at an amount less than the then outstanding principal balance of the
mortgage loan secured by such mortgaged property and reduces the secured debt to
such value. In such case, the trust, as the holder of such mortgage loan, would
become an unsecured creditor to the extent of the difference between the
outstanding principal balance of such mortgage loan and such reduced secured
debt (such difference, a "Deficient Valuation").

     An "Excess Loss" is any Deficient Valuation, Fraud Loss or Special Hazard
Loss (each a type of Realized Loss) occurring after, respectively, the
Bankruptcy Coverage Termination Date, Fraud Coverage Termination Date or Special
Hazard Termination Date, each as defined below.

     A "Non-Excess Realized Loss" is any Realized Loss other than an Excess
Loss.

     A "Fraud Loss" is any Realized Loss attributable to fraud in the
origination of the related mortgage loan.

     A "Special Hazard Loss" is a Realized Loss attributable to damage or a
direct physical loss suffered by a mortgaged property -- including any Realized
Loss due to the presence or suspected presence of hazardous wastes or substances
on a mortgaged property -- other than any such damage or loss covered by a
hazard policy or a flood insurance policy required to be maintained in respect
of such mortgaged property under the Agreement or any loss due to normal wear
and tear or certain other causes.

  Losses Allocable to the Class PO Certificates

     On each Distribution Date, the applicable PO Percentage of the principal
portion of any Realized Loss (including any Excess Loss) on a Discount Mortgage
Loan will be allocated to the Class PO Certificates until the Class Certificate
Principal Balance thereof is reduced to zero.

     With respect to any Distribution Date through the Cross-Over Date, the sum
of (1) the applicable PO Percentage of the principal portion of Non-Excess
Realized Losses on a Discount Mortgage Loan allocated to the Class PO
Certificates on such date and (2) all amounts previously allocated to the Class
PO Certificates in respect of such losses and not distributed to the Class PO
Certificates on prior Distribution Dates will be the "Class PO Deferred Amount."

     To the extent funds are available therefor on any Distribution Date through
the Cross-Over Date, distributions in respect of the Class PO Deferred Amount
will be made on the Class PO Certificates in accordance with priority fourth of
the second paragraph under "-- Distributions on the Certificates -- Allocation
of Available Funds" above. Any distribution of Available Funds in respect of the
Class PO Deferred Amount will not reduce the Class Certificate Principal Balance
of the Class PO Certificates. No interest will accrue on the Class PO Deferred
Amount. On each Distribution Date through the Cross-Over Date, the Class
Certificate Principal Balance of the lowest ranking class of junior certificates
then outstanding will be reduced by the amount of any distributions made to the
Class PO Certificates in respect of the Class PO Deferred Amount on such
Distribution Date, through the operation of the Class PO Deferred Payment
Writedown Amount. After the Cross-Over Date, no distributions will be made in
respect of the Class PO Deferred Amount and Realized Losses allocated to the
Class PO Certificates will be borne by them without a right of reimbursement
from any other class of certificates. Any distribution of Unanticipated
Recoveries (as defined in the accompanying

                                      S-44
<PAGE>   45

prospectus) on the Class PO Certificates will be adjusted to take into account
the Class PO Deferred Amount previously paid to such class as specified in the
Agreement. See "Servicing of the Mortgage Loans -- Unanticipated Recoveries of
Losses on the Mortgage Loans" in the accompanying prospectus.

  Losses Allocable to Certificates other than the Class PO Certificates

     Prior to the Cross-Over Date (and on such date under certain
circumstances), the applicable Non-PO Percentage of the principal portion of any
Non-Excess Realized Loss will be allocated among the outstanding classes of
junior certificates, in inverse order of priority, until the Class Certificate
Principal Balance of each such class has been reduced to zero (i.e., Non-Excess
Realized Losses will be allocated first to the Class B5 Certificates while such
certificates are outstanding, second to the Class B4 Certificates, and so on).
Fraud Losses, Special Hazard Losses and Deficient Valuations occurring prior to
the Fraud Coverage Termination Date, Special Hazard Termination Date and
Bankruptcy Coverage Termination Date, respectively, will be allocated to the
junior certificates in the manner described in the preceding sentence.

     Commencing on the Cross-Over Date, the applicable Non-PO Percentage of the
principal portion of any Realized Loss will be allocated among the outstanding
classes of senior certificates entitled to principal distributions (other than
the Class PO Certificates) pro rata based upon their Class Certificate Principal
Balances.

     As indicated above, Fraud Losses, Special Hazard Losses and Deficient
Valuations occurring after the Fraud Coverage Termination Date, Special Hazard
Termination Date and Bankruptcy Coverage Termination Date, respectively, will be
Excess Losses. The applicable Non-PO Percentage of the principal portion of any
Excess Loss on a mortgage loan for any Distribution Date (whether occurring
before, on or after the Cross-Over Date) will be allocated pro rata among all
outstanding classes of certificates entitled to principal distributions (other
than the Class PO Certificates) based on their Class Certificate Principal
Balances.

     Fraud Coverage Termination Date.  The "Fraud Coverage Termination Date" is
the Distribution Date upon which the Fraud Loss Amount has been reduced to zero
or a negative number (or the Cross-Over Date, if earlier). Upon the initial
issuance of the certificates, the "Fraud Loss Amount" will equal approximately
$4,987,507 (approximately 1% of the aggregate Scheduled Principal Balances of
the mortgage loans as of the Cut-off Date). As of any Distribution Date prior to
the first anniversary of the Cut-off Date, the Fraud Loss Amount will equal
approximately $4,987,507, minus the aggregate amount of Fraud Losses that would
have been allocated to the junior certificates in the absence of the Loss
Allocation Limitation since the Cut-off Date. As of any Distribution Date from
the first to the fifth anniversaries of the Cut-off Date, the Fraud Loss Amount
will equal (1) the lesser of (a) the Fraud Loss Amount as of the most recent
anniversary of the Cut-off Date and (b) 1% (from the first to but excluding the
third anniversaries of the Cut-off Date) or 0.5% (from and including the third
to but excluding the fifth anniversaries of the Cut-off Date) of the aggregate
outstanding principal balance of all of the mortgage loans as of the most recent
anniversary of the Cut-off Date minus (2) the Fraud Losses that would have been
allocated to the junior certificates in the absence of the Loss Allocation
Limitation since the most recent anniversary of the Cut-off Date. As of any
Distribution Date on or after the fifth anniversary of the Cut-off Date, the
Fraud Loss Amount shall be zero.

                                      S-45
<PAGE>   46

     Special Hazard Termination Date.  The "Special Hazard Termination Date" is
the Distribution Date upon which the Special Hazard Loss Amount has been reduced
to zero or a negative number (or the Cross-Over Date, if earlier). Upon the
initial issuance of the certificates, the "Special Hazard Loss Amount" will
equal approximately $4,987,507 (approximately 1% of the aggregate Scheduled
Principal Balances of the mortgage loans as of the Cut-off Date). As of any
Distribution Date, the Special Hazard Loss Amount will equal approximately
$4,987,507 minus the sum of (1) the aggregate amount of Special Hazard Losses
that would have been previously allocated to the junior certificates in the
absence of the Loss Allocation Limitation and (2) the Adjustment Amount. For
each anniversary of the Cut-off Date, the "Adjustment Amount" shall be equal to
the amount, if any, by which the Special Hazard Loss Amount (without giving
effect to the deduction of the Adjustment Amount for such anniversary) exceeds
the lesser of:

          (a) an amount calculated by GECMSI and approved by each of Fitch and
     S&P, which amount shall not be less than $500,000; and

          (b) the greater of (x) 1% (or if greater than 1%, the highest
     percentage of mortgage loans by principal balance secured by mortgaged
     properties in any California zip code) of the outstanding principal balance
     of all the mortgage loans on the Distribution Date immediately preceding
     such anniversary and (y) twice the outstanding principal balance of the
     mortgage loan which has the largest outstanding principal balance on the
     Distribution Date immediately preceding such anniversary.

     Bankruptcy Coverage Termination Date.  The "Bankruptcy Coverage Termination
Date" is the Distribution Date upon which the Bankruptcy Loss Amount has been
reduced to zero or a negative number (or the Cross-Over Date, if earlier). On
each Distribution Date, the "Bankruptcy Loss Amount" will equal approximately
$185,966 (approximately 0.04% of the aggregate Scheduled Principal Balances of
the mortgage loans as of the Cut-off Date), subject to reduction as described in
the Agreement, minus the aggregate amount of previous Deficient Valuations and
Debt Service Reductions (as defined below). The Bankruptcy Loss Amount and the
manner of reduction thereof described in the Agreement may be reduced or
modified upon written confirmation from Fitch and S&P (each as defined herein)
that such reduction or modification will not adversely affect the then current
ratings of the senior certificates by Fitch and S&P. Such reduction may
adversely affect the coverage provided by subordination with respect to
Deficient Valuations.

     A "Debt Service Reduction" is a reduction in the amount of the monthly
payment due on a mortgage loan as established by a bankruptcy court in a
personal bankruptcy of a mortgagor.

  Method of Allocating Realized Losses

     All allocations of Realized Losses to a class of certificates will be
accomplished on a Distribution Date by reducing the Class Certificate Principal
Balance thereof by the appropriate share of any such losses occurring during the
month preceding the month of such Distribution Date and, accordingly, will be
taken into account in determining the distributions of principal and interest on
such certificates commencing on the following Distribution Date. The aggregate
amount of the principal portion of any Non-Excess Realized Losses to be
allocated to the Class PO Certificates on any Distribution Date through the
Cross-Over Date will also be taken into account in determining distributions in
respect of the Class PO Deferred Amount for such Distribution Date.

                                      S-46
<PAGE>   47

     The interest portion of all Realized Losses will be allocated among the
outstanding classes of certificates entitled to distributions of interest to the
extent described under "-- Distributions on the Certificates -- Interest" above.

     No reduction of the Class Certificate Principal Balance of any class will
be made on any Distribution Date on account of any Realized Loss to the extent
that such reduction would have the effect of reducing the aggregate Certificate
Principal Balance of all of the certificates as of such Distribution Date to an
amount less than the Pool Scheduled Principal Balance as of the first day of the
month of such Distribution Date, less any Deficient Valuations occurring on or
prior to the Bankruptcy Coverage Termination Date (such limitation being the
"Loss Allocation Limitation").

     Debt Service Reductions are not Realized Losses, and the principal portion
thereof will not be allocated in reduction of the Certificate Principal Balance
of any certificate. However, after the Bankruptcy Coverage Termination Date, the
amounts distributable under clause (1) of the definitions of Senior Optimal
Principal Amount, Class PO Principal Distribution Amount and Junior Optimal
Principal Amount will be reduced by the amount of the principal portion of any
Debt Service Reductions. Regardless of when they occur, Debt Service Reductions
may reduce the amount of Available Funds otherwise available for distribution on
a Distribution Date. As a result of the subordination of the junior certificates
in right of distribution, the reduction in Available Funds resulting from any
Debt Service Reductions prior to the Bankruptcy Coverage Termination Date will
be borne by the junior certificates (to the extent then outstanding) in inverse
order of priority.

ADDITIONAL RIGHTS OF THE RESIDUAL CERTIFICATEHOLDERS

     In addition to distributions of principal and interest, the holders of the
Class R Certificates will be entitled to receive:

          (1) the amount, if any, of Available Funds remaining in the REMIC on
     any Distribution Date after distributions of interest and principal and in
     respect of the Class PO Deferred Amount are made on the certificates on
     such date;

          (2) the amount in each Rounding Account upon the earlier of the
     Cross-Over Date and the next Distribution Date after the Class Certificate
     Principal Balance of the class of Designated Retail Certificates for which
     such Rounding Account was established is reduced to zero, as described
     herein;

          (3) the amount of any Unanticipated Recoveries received by GECMSI in
     the calendar month preceding the month of a Distribution Date and not
     otherwise allocated to other classes of certificates as described in
     "Servicing of the Mortgage Loans -- Unanticipated Recoveries of Losses on
     the Mortgage Loans" in the accompanying prospectus; and

          (4) the proceeds, if any, of the assets of the trust remaining in the
     REMIC after the Class Certificate Principal Balances of all classes of
     certificates have each been reduced to zero.

     It is not anticipated that any material assets will be remaining for such
distributions on the residual certificates at any such time. See "Federal Income
Tax Consequences -- Residual Certificates" herein.

                                      S-47
<PAGE>   48

SUBORDINATION

Priority of Senior Certificates

     As of the date of the initial issuance of the certificates, the aggregate
Certificate Principal Balance of the junior certificates will equal
approximately 4.25% of the aggregate Certificate Principal Balance of all the
classes of certificates. The rights of the holders of the junior certificates to
receive distributions with respect to the mortgage loans will be subordinate to
such rights of the holders of the senior certificates, to the extent described
above. The subordination of the junior certificates is intended:

          (a) to enhance the likelihood of timely receipt by the holders of the
     senior certificates (to the extent of the subordination of the junior
     certificates) of the full amount of the scheduled monthly distributions of
     principal and interest allocable to the senior certificates; and

          (b) to afford the holders of the senior certificates (to the extent of
     the subordination of the junior certificates) protection against Realized
     Losses, to the extent described above.

     If Realized Losses exceed the credit support provided to the senior
certificates through subordination, or if Excess Losses occur, all or a portion
of such losses will be borne by the senior certificates.

     The protection afforded to the holders of senior certificates by means of
the subordination feature will be accomplished by:

          (1) the preferential right of such holders to receive, prior to any
     distribution being made on a Distribution Date in respect of the junior
     certificates, in accordance with the paydown rules specified above under
     "-- Distributions on the Certificates -- Allocation of Available Funds,"
     the amounts due to the senior certificate holders on each Distribution Date
     out of the Available Funds 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 the junior
     certificates;

          (2) the allocation to the junior certificates of the applicable Non-PO
     Percentage of the principal portion of any Non-Excess Realized Loss to the
     extent set forth herein; and

          (3) the allocation to the junior certificates of the applicable PO
     Percentage of the principal portion of any Non-Excess Realized Loss to the
     extent set forth herein through the operation of the Class PO Deferred
     Payment Writedown Amount.

     The allocation of the principal portion of Realized Losses (as set forth
herein) to the junior certificates on any Distribution Date will decrease the
protection provided to the senior certificates then outstanding on future
Distribution Dates by reducing the aggregate Certificate Principal Balance of
the junior certificates then outstanding.

     In addition, in order to extend the period during which the junior
certificates remain available as credit enhancement for the senior certificates,
the entire amount of the applicable Non-PO Percentage of any prepayment or other
unscheduled recovery of principal with respect to a mortgage loan will be
allocated to the senior certificates as a whole entitled to principal
distributions (other than the Class PO Certificates) during at least the first
five years after the date of initial issuance of the certificates, with such
allocation being subject to reduction thereafter as described herein. This
allocation has the effect of accelerating the amortization of such senior
certificates as a group while, in the absence of losses in respect of

                                      S-48
<PAGE>   49

the mortgage loans, increasing the percentage interest in the principal balance
of the mortgage loans evidenced by the junior certificates. Among such senior
certificates, such amounts will be allocated to the outstanding Group I Senior
Certificates during the first five years after the date of initial issuance of
the certificates (except as otherwise described herein on or following the Group
I Final Distribution Date) with such allocation being subject to reduction
thereafter as described herein, except that such amounts will be allocated pro
rata among all of the outstanding senior certificates (other than the Class PO
and Class S Certificates) on each Distribution Date after the Cross-Over Date.

     After the payment of amounts distributable in respect of the senior
certificates on each Distribution Date, the junior certificates will be entitled
on such date to the remaining portion, if any, of the Available Funds in an
aggregate amount equal to the Accrued Certificate Interest on the junior
certificates for such date, any remaining undistributed Accrued Certificate
Interest thereon from previous Distribution Dates and the sum of the Allocable
Shares of the classes of junior certificates. Amounts so distributed to junior
certificateholders will not be available to cover any delinquencies or any
Realized Losses in respect of subsequent Distribution Dates.

Priority Among Junior Certificates

     As of the date of the initial issuance of the certificates, the aggregate
Certificate Principal Balance of the Class B3, Class B4 and Class B5
Certificates, all of which are subordinate in right of distribution to the
junior certificates offered hereby, will equal approximately 0.95% of the
initial aggregate Certificate Principal Balance of all of the certificates and
approximately 22.34% of the initial aggregate Certificate Principal Balance of
all of the junior certificates. On each Distribution Date, the holders of any
particular class of junior certificates, other than the Class B5 Certificates,
will have a preferential right to receive the amounts due them on such
Distribution Date out of Available Funds, prior to any distribution being made
on such date on each class of certificates ranking junior to such class. In
addition, except as described herein, the applicable Non-PO Percentage of the
principal portion of any Non-Excess Realized Loss with respect to a mortgage
loan and any Class PO Deferred Payment Writedown Amount will be allocated, to
the extent set forth herein, in reduction of the Class Certificate Principal
Balances of the junior certificates in inverse order of priority of such
certificates. The effect of the allocation of such Realized Losses and of the
Class PO Deferred Payment Writedown Amount to a class of junior certificates
will be to reduce future distributions allocable to such class and increase the
relative portion of distributions allocable to more senior classes of
certificates.

     In order to maintain the relative levels of subordination among the junior
certificates, the applicable Non-PO Percentage of prepayments and certain other
unscheduled recoveries of principal in respect of the mortgage loans (which will
not be distributable to such certificates for at least the first five years
after the date of initial issuance of the certificates, except as otherwise
described herein on or following the Senior Final Distribution Date) will not be
distributable to the holders of any class of Class B Certificates on any
Distribution Date for which the related Class Prepayment Distribution Trigger is
not satisfied, except as described above. See "-- Distributions on the
Certificates -- Principal." If the Class Prepayment Distribution Trigger is not
satisfied with respect to any class of Class B Certificates, the amortization of
more senior ranking classes of junior certificates may occur more rapidly than
would otherwise have been the case and, in the absence of losses in respect of
the mortgage loans, the percentage interest in the

                                      S-49
<PAGE>   50

principal balance of the mortgage loans evidenced by such Class B Certificates
may increase.

     As a result of the subordination of any class of certificates, such class
of certificates will be more sensitive than more senior ranking classes of
certificates to the rate of delinquencies and defaults on the mortgage loans,
and under certain circumstances investors in such certificates may not recover
their initial investment.

RESTRICTIONS ON TRANSFER OF THE RESIDUAL CERTIFICATES

     The residual certificates will be subject to the restrictions on transfer
described in the prospectus under "Federal Income Tax Consequences -- REMIC
Certificates -- Transfers of Residual Certificates -- Disqualified
Organizations," "-- Foreign Investors" and "-- Noneconomic Residual Interests."
In addition, the Agreement provides that the residual certificates may not be
acquired by an ERISA Plan. The residual certificates will contain a legend
describing the foregoing restrictions.

YIELD AND WEIGHTED AVERAGE LIFE CONSIDERATIONS

YIELD

     The effective yield on the certificates will depend upon, among other
things, the price at which the certificates are purchased and the rate and
timing of payments of principal (including both scheduled and unscheduled
payments) of the mortgage loans underlying the certificates. You should refer to
"Yield, Maturity and Weighted Average Life Considerations" in the prospectus and
the text below for a discussion of the factors that could affect the yield of
your certificates.

PREPAYMENTS

     The rate of distribution of principal of the certificates (and the
aggregate amount of interest payable on any class of interest-only certificates)
will be affected primarily by the amount and timing of principal payments
received on or in respect of the mortgage loans. Such principal payments will
include scheduled payments as well as voluntary prepayments by borrowers (such
as, for example, prepayments in full due to refinancings, including refinancings
made by GECMSI in the ordinary course of conducting its mortgage banking
business, some of which refinancings may be solicited by GECMSI, or prepayments
in connection with biweekly payment programs, participation in which may be
solicited by GECMSI) and prepayments resulting from foreclosure, condemnation
and other dispositions of the mortgaged properties, from repurchase by GECMSI of
any mortgage loan as to which there has been a material breach of warranty or
defect in documentation (or deposit of certain amounts in respect of delivery of
a substitute mortgage loan therefor) and from an exercise by GECMSI of its
option to repurchase a Defaulted Mortgage Loan. Mortgagors are permitted to
prepay the mortgage loans, in whole or in part, at any time without penalty. In
addition, as a result of the fact that certificateholders (other than holders of
any class of interest-only certificates) will generally be entitled on any
Distribution Date to receive from Available Funds distributions of amounts based
on clause (4) of each of the definitions of Senior Optimal Principal Amount,
Class PO Principal Distribution Amount or Junior Optimal Principal Amount, as
the case may be, the occurrence of defaults on the mortgage loans may produce
the same effect on the certificates receiving such distributions as an early
receipt of principal. See "Yield, Maturity and Weighted Average Life
Considerations" in the prospectus for a discussion of the factors that may
influence prepayment rates.

                                      S-50
<PAGE>   51

     Voluntary prepayments in full of principal on the mortgage loans received
by GECMSI (or, in the case of mortgage loans master-serviced by GECMSI, of which
GECMSI receives notice) from the first day through the fifteenth day of each
month (other than the month of the Cut-off Date) are passed through to the
certificateholders in the month of receipt or payment. Voluntary prepayments of
principal in full received from the sixteenth day (or, in the case of the month
of the Cut-off Date, from the Cut-off Date) through the last day of each month,
and all voluntary partial prepayments of principal on the mortgage loans are
passed through to the certificateholders in the month following the month of
receipt or payment. Any prepayment of a mortgage loan or liquidation of a
mortgage loan (by foreclosure proceedings or by virtue of the purchase of a
mortgage loan in advance of its stated maturity as required or permitted by the
Agreement) will generally have the effect of passing through to the
certificateholders principal amounts (or, in the case of any class of
interest-only certificates, reducing the Notional Principal Balance thereof)
which would otherwise be passed through (or reduced) in amortized increments
over the remaining term of such mortgage loan.

     The entire amount of the applicable Non-PO Percentage of any prepayments
and other unscheduled recoveries of principal with respect to a mortgage loan
will be allocated solely to the outstanding senior certificates entitled to
principal distributions (other than the Class PO Certificates) during at least
the first five years after the date of initial issuance of the certificates,
with such allocation being subject to reduction thereafter as described herein.
The portion of such amounts otherwise allocable to the Class A3 Certificates
will be allocated solely to the outstanding Group I Senior Certificates during
the first five years after the date of initial issuance of the certificates
(except as otherwise described herein on or following the Group I Final
Distribution Date), with such allocation being subject to reduction thereafter
as described herein, provided that such amounts will be allocated pro rata among
all the outstanding senior certificates entitled to principal distributions
(other than the Class PO Certificates) on each Distribution Date after the
Cross-Over Date. The resulting allocation between the Group I Senior
Certificates and the Class A3 Certificates is designed to accelerate the
allocation of principal prepayments and certain other unscheduled recoveries of
principal on the mortgage loans to holders of the Group I Senior Certificates
relative to the Class A3 Certificates through the earlier of the Group I Final
Distribution Date and the Cross-Over Date. Notwithstanding the foregoing, all
distributions of principal on the outstanding senior certificates entitled to
principal distributions (other than the Class PO Certificates) will be made pro
rata among such certificates on each Distribution Date after the Cross-over
Date. See "Description of the Certificates -- Distributions on the
Certificates -- Principal" herein.

     When a full prepayment is made on a mortgage loan, the mortgagor is charged
interest ("Prepayment Interest") on the days in the month actually elapsed up to
the date of such prepayment, at a daily interest rate (determined by dividing
the mortgage interest rate by 360) which is applied to the principal amount of
the loan so prepaid. When such a prepayment is made during the period from the
sixteenth day through the last day of any month (and from the Cut-off Date
through the fifteenth day of the month of the Cut-off Date), such Prepayment
Interest is passed through to the certificateholders (other than holders of any
class of principal-only certificates) in the month following its receipt and the
amount of interest thus distributed to certificateholders, to the extent not
supplemented by a Compensating Interest Payment (as defined herein), will be
less than the amount which would have been distributed (or added to the Class
Certificate Balance of a class of Accrual Certificates) in the absence of such
prepayment. The payment of a claim under certain insurance policies or the
purchase of a defaulted mortgage loan by a private

                                      S-51
<PAGE>   52

mortgage insurer may also cause a reduction in the amount of interest passed
through. Shortfalls described in this paragraph will be borne by
certificateholders to the extent described herein. See "Description of the
Certificates -- Distributions on the Certificates -- Interest" herein.

     Any partial prepayment will be applied to the balance of the related
mortgage loan as of the first day of the month of receipt, will be passed
through to the certificateholders in the following month and, to the extent not
supplemented by a Compensating Interest Payment, will reduce the aggregate
amount of interest distributable to the certificateholders in such month in an
amount equal to 30 days of interest at the related Net Mortgage Rate on the
amount of such prepayment.

     The yield on certain classes of the certificates also may be affected by
any repurchase by GECMSI of the mortgage loans as described under "The Pooling
and Servicing Agreement -- Termination" herein.

SENSITIVITY OF THE CLASS A14 CERTIFICATES

     The yield to investors in the Class A14 Certificates, which are
principal-only certificates, will be highly sensitive to the rate of principal
payments (including prepayments) on the mortgage loans. If the Class A14
Certificates are purchased at a discount to their Class Certificate Principal
Balance, lower than anticipated rates of prepayments on the mortgage loans could
result in an extension in the anticipated weighted average lives of such
certificates and actual yields to investors that are significantly lower than
the anticipated yields.

     To illustrate the significance of prepayments on the distributions on the
Class A14 Certificates, the following tables indicate the pre-tax yields to
maturity (on a corporate bond-equivalent basis) under the specified assumptions
at the different constant percentages of the Prepayment Assumption shown. The
yields were calculated by determining the applicable monthly discount rate
which, when applied to the related assumed stream of cash flows to be paid on
the Class A14 Certificates, would cause the discounted present value of such
cash flows to equal the assumed purchase price percentage for such certificates
stated in such tables and converting the applicable monthly discount rate to a
corporate bond equivalent rate. Implicit in the use of any discounted present
value or internal rate of return calculations such as these is the assumption
that intermediate cash flows are reinvested at the discount rate or internal
rate of return. Thus, these calculations do not take into account the different
interest rates at which investors may be able to reinvest funds received by them
as distributions on such certificates and, consequently, do not reflect the
return on any investment when such reinvestment rates are considered. It is
unlikely that the mortgage loans will prepay at any of the constant levels of
the Prepayment Assumption shown or any other constant rate until maturity or
that all of the mortgage loans will prepay at the same rate. 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 any investor, even if the average rate of principal
prepayments is consistent with an investor's expectation. In general, the
earlier the payment of principal of the mortgage loans, the greater the effect
on an investor's yield to maturity. As a result, the effect on an investor's
yield of principal prepayments occurring at a rate higher (or lower) than the
rate anticipated by the investor during the period

                                      S-52
<PAGE>   53

immediately following the issuance of the certificates will not be equally
offset by a subsequent like reduction (or increase) in the rate of principal
prepayments.

     The following tables have been prepared based on the Modeling Assumptions
(as defined herein) and the additional assumptions that:

          (1) the assumed purchase price of the Class A14 Certificates is as
     specified (expressed as a percentage of the Class Certificate Principal
     Balance thereof) and

          (2) such purchase price is paid on June 24, 1999.

<TABLE>
<CAPTION>
        PRE-TAX YIELD TO MATURITY OF
    THE CLASS A14 CERTIFICATES (ASSUMED
    PURCHASE PRICE PERCENTAGE -- 46.50%)
           PREPAYMENT ASSUMPTION
    0%     150%    275%    400%     500%
  ----------------------------------------
  <S>     <C>     <C>     <C>      <C>
  2.516%  4.042%  7.113%  11.164%  14.169%
</TABLE>

- -------------------------
* Corporate bond-equivalent basis

     The mortgage loans may not have all the characteristics assumed, and there
can be no assurance that:

          (1) the mortgage loans will prepay at any of the constant rates shown
     in the table or any particular rate;

          (2) the pre-tax yield to maturity on the Class A14 Certificates will
     correspond to any amounts shown herein; or

          (3) the purchase price of the Class A14 Certificates will be as
     assumed.

     Each investor must make its own decision as to the appropriate prepayment
assumptions to be used in deciding whether or not to purchase a Class A14
Certificate.

SENSITIVITY OF THE LIBOR CERTIFICATES

     The yield to investors in the LIBOR Certificates will be highly sensitive
to the level of LIBOR. Investors in the Class A2 Certificates should consider
the risk that lower than anticipated levels of LIBOR could result in actual
yields that are lower than anticipated yields on such certificates. The interest
rate on the Class A2 Certificates cannot exceed 8.00% (which would occur
whenever LIBOR equals or exceeds 6.95% for any relevant Interest Accrual Period
other than the first such period).

     Conversely, investors in the Class A4 Certificates should consider (1) the
risk that higher than anticipated levels of LIBOR could result in actual yields
that are lower than anticipated yields on such certificates, and (2) the fact
that the rate of interest on the Class A4 Certificates can fall as low as 0.0%
(which will occur whenever LIBOR equals or exceeds 6.95% for any relevant
Interest Accrual Period other than the first such period).

     Levels of LIBOR may have little or no correlation to levels of prevailing
mortgage interest rates. It is possible that lower prevailing mortgage interest
rates, which might be expected to result in faster prepayments, could occur
concurrently with an increased level of LIBOR. Conversely, higher prevailing
mortgage interest rates, which might be expected to result in slower
prepayments, could occur concurrently with a decreased level of LIBOR. In
addition, the timing of changes in the level of LIBOR may affect the actual
yield to maturity to an investor in the LIBOR Certificates even if the average
level is consistent with such investor's expectation. In general, the earlier a
change in the level of LIBOR, the greater the effect on such investor's yield to
maturity. As a result, the effect

                                      S-53
<PAGE>   54

on such investor's yield to maturity of a level of LIBOR that is higher (or
lower) than the rate anticipated by such investor during the period immediately
following the issuance of the certificates is not likely to be offset by a
subsequent like reduction (or increase) in the level or LIBOR.

     Because the Interest Accrual Period for the LIBOR Certificates will run
from the 25th day of the month (or the 24th day, in the case of the first
Interest Accrual Period) preceding the month in which a Distribution Date occurs
to the 24th day of the month of such Distribution Date, the effective yield on
such certificates will not be reduced as a result of any delay between the end
of the Interest Accrual Period and the distribution of interest (assuming such
Distribution Date occurs on the 25th day of the month).

Class A4 Certificates

     To illustrate the significance of prepayments and changes in LIBOR on the
distributions on the Class A4 Certificates, the following table indicates the
pre-tax yields to maturity (on a corporate bond-equivalent basis) under the
specified assumptions at the different constant percentages of the Prepayment
Assumption (as defined herein) and the different levels of LIBOR indicated. The
yields were calculated by determining the applicable monthly discount rate
which, when applied to the related assumed stream of cash flows to be paid on
the Class A4 Certificates, would cause the discounted present value of such cash
flows to equal the assumed purchase price for such certificates stated in such
table and converting the applicable monthly discount rate to a corporate bond-
equivalent rate. Implicit in the use of any discounted present value or internal
rate of return calculations such as these is the assumption that intermediate
cash flows are reinvested at the discount rate or internal rate of return. Thus,
these calculations do not take into account the different interest rates at
which investors may be able to reinvest funds received by them as distributions
on the Class A4 Certificates, and, consequently, do not reflect the return on
the investment when such reinvestment rates are considered. It is unlikely that
the mortgage loans will prepay at a constant level of the Prepayment Assumption
until maturity, that all of the mortgage loans will prepay at the same rate or
that LIBOR will not vary. 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 any investor, even if the
average rate of principal prepayments is consistent with an investor's
expectation. In general, the earlier the payment of principal of the mortgage
loans, the greater the effect on an investor's yield to maturity. As a result,
the effect on an investor's yield of principal prepayments occurring at a rate
higher (or lower) than the rate anticipated by the investor during the period
immediately following the issuance of the certificates will not be equally
offset by a subsequent like reduction (or increase) in the rate of principal
prepayments. Moreover, as noted above, the timing of changes in the level of
LIBOR may affect the actual yield to maturity to an investor in a Class A4
Certificate.

     The following table has been prepared based on the Modeling Assumptions and
the additional assumptions that:

     - the assumed purchase price of a Class A4 Certificate is the product of
       the assumed purchase price percentage specified below (which does not
       include accrued interest) and the initial Class Certificate Principal
       Balance thereof;

                                      S-54
<PAGE>   55

     - on the LIBOR Determination Date occurring in July 1999 and on each LIBOR
       Determination Date thereafter, LIBOR is the level specified; and

     - such purchase price is paid on June 24, 1999.

             PRE-TAX YIELD TO MATURITY OF THE CLASS A4 CERTIFICATES
                 (ASSUMED PURCHASE PRICE PERCENTAGE = 65.125%)

<TABLE>
<CAPTION>
                                                      PREPAYMENT ASSUMPTION
                                       ----------------------------------------------------
                LIBOR                     0%        150%       275%       400%       500%
                -----                  --------   --------   --------   --------   --------
<S>                                    <C>        <C>        <C>        <C>        <C>
4.90%................................  11.742%    11.902%    12.545%    14.040%    16.258%
5.90%................................   6.499%     6.733%     7.514%     9.114%    11.451%
6.90%................................   1.723%     1.984%     2.791%     4.400%     6.808%
6.95%................................   1.498%     1.758%     2.563%     4.170%     6.581%
</TABLE>

     The mortgage loans may not have all of the characteristics assumed and
there can be no assurance:

     - that the mortgage loans will prepay at any of the constant rates shown in
       the tables or at any particular rate;

     - that the pre-tax yields to maturity on the Class A4 Certificates will
       correspond to any of the amounts shown herein;

     - that the levels of LIBOR will correspond to the levels shown herein; or

     - that the purchase price of a Class A4 Certificate will be as assumed.

     The table does not constitute a representation as to the correlation of any
level of LIBOR and the rate of prepayments on the mortgage loans. Each investor
must make its own 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 A4 Certificate.

THE CLASS M, CLASS B1 AND CLASS B2 CERTIFICATES

     The rate of payment of principal, the aggregate amount of distributions and
the yield to maturity of the Class M, Class B1 and Class B2 Certificates will be
affected by the rate of prepayments on the mortgage loans, as well as the rate
of mortgagor defaults resulting in Realized Losses, by the severity of those
losses and by the timing thereof. See "Description of the
Certificates -- Allocation of Realized Losses on the Certificates" herein for a
description of the manner in which such losses are borne by the holders of the
certificates. If the purchaser of a Class M, Class B1 or Class B2 Certificate
calculates its anticipated yield based on an assumed rate of default and amount
of Realized Losses that is lower than the default rate and the amount of losses
actually incurred, its actual yield to maturity may be lower than that so
calculated and could be negative. The timing of defaults and losses will also
affect an investor's actual yield to maturity, even if the average rate of
defaults and severity of losses are consistent with an investor's expectations.
In general, the earlier a loss occurs, the greater the effect on an investor's
yield to maturity.

     The yields to maturity on the classes of Class B Certificates with higher
numerical designations will be more sensitive to losses due to liquidations of
defaulted mortgage loans than will the yields on such classes with lower
numerical designations, and the yields to maturity on all of the Class B
Certificates will be more sensitive to such losses than will the yields on the
other classes of certificates. The yields to maturity on the Class M

                                      S-55
<PAGE>   56

Certificates will be more sensitive to such losses than will the yields on the
senior certificates and less sensitive than the yields on the Class B
Certificates. The junior certificates will be more sensitive to losses due to
liquidations of defaulted mortgage loans because the entire amount of such
losses will be allocable to such certificates in inverse order of priority,
either directly or through the allocation of the Class PO Deferred Payment
Writedown Amount, except as provided herein. To the extent not covered by
GECMSI's advances of delinquent monthly payments of principal and interest,
delinquencies on the mortgage loans may also have a relatively greater effect:

          (1) on the yields to investors in the Class B Certificates with higher
     numerical designations than on the yields to investors in those Class B
     Certificates with lower numerical designations;

          (2) on the yields to investors in the Class B Certificates than on the
     yields to investors in the other classes of the certificates; and

          (3) on the yields to investors in the Class M Certificates than on the
     yields to investors in the senior certificates.

     As described above under "Description of the Certificates -- Distributions
on the Certificates -- Interest" and "-- Principal," "-- Allocation of Realized
Losses on the Certificates" and "-- Subordination," amounts otherwise
distributable to holders of any class of Class B Certificates will be made
available to protect the holders of the more senior ranking classes of the
certificates against interruptions in distributions due to certain mortgagor
delinquencies. Amounts otherwise distributable to holders of the Class M
Certificates will be made available to protect the holders of the senior
certificates against interruptions in distributions due to certain mortgagor
delinquencies. Such delinquencies, even if subsequently cured, may affect the
timing of the receipt of distributions by the holders of the junior
certificates.

     To the extent that the Class M, Class B1 or Class B2 Certificates are being
purchased at discounts from their initial Class Certificate Principal Balances,
if the purchaser of such a certificate calculates its yield to maturity based on
an assumed rate of payment of principal faster than that actually received on
such certificate, its actual yield to maturity may be lower than that so
calculated.

FINAL PAYMENT CONSIDERATIONS

     The rate of payment of principal of the certificates will depend on the
rate of payment of principal of the mortgage loans (including prepayments,
defaults, delinquencies and liquidations) which, in turn, will depend on the
characteristics of the mortgage loans, the level of prevailing interest rates
and other economic, geographic, social and other factors, and no assurance can
be given as to the actual payment experience. As of the Cut-off Date, the month
and year of the latest scheduled maturity of a mortgage loan is expected to be
June 2029. In addition, to the extent delinquencies and defaults are not covered
by advances made by GECMSI or offset by the effect of the subordination of the
junior certificates, delinquencies and defaults could affect the actual maturity
of the certificates offered hereby.

                                      S-56
<PAGE>   57

WEIGHTED AVERAGE LIVES OF THE CERTIFICATES

     The weighted average life of a certificate is determined by:

      --  multiplying the reduction, if any, in the principal balance thereof on
          each Distribution Date by the number of years from the date of
          issuance to such Distribution Date;

      --  summing the results; and

      --  dividing the sum by the aggregate reductions in the principal balance
          of such certificate.

     The weighted average lives of the certificates will be affected, to varying
degrees, by the rate of principal payments on the mortgage loans, the timing of
changes in such rate of payments and the priority sequence of distributions of
principal of such certificates. The interaction of the foregoing factors may
have different effects on the various classes of the certificates and the
effects on any class may vary at different times during the life of such class.
Further, to the extent the prices of a class of certificates represent discounts
or premiums to their respective original principal balances, variability in the
weighted average lives of such classes of certificates could result in
variability in the related yields to maturity.

     Prepayments on mortgage loans are commonly measured relative to a
prepayment standard or model. The model used in this prospectus supplement (the
"Prepayment Assumption") represents an assumed rate of prepayment each month
relative to the then outstanding principal balance of a pool of mortgage loans.
The Prepayment Assumption does not purport to be either a historical description
of the prepayment experience of any pool of mortgage loans or a prediction of
the anticipated rate of prepayment of any pool of mortgage loans, including the
mortgage loans in the mortgage loan pool. A prepayment assumption of 100% of the
Prepayment Assumption assumes 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 increasing by 0.2% per annum in each month
thereafter until the thirtieth month. Beginning in the thirtieth month and in
each month thereafter during the life of the mortgage loans, 100% of the
Prepayment Assumption assumes a constant prepayment rate of 6.0% per annum.

Tables of Certificate Principal Balances

     The following tables set forth the percentages of the initial Class
Certificate Principal Balance of each class of certificates offered hereby that
would be outstanding after each of the dates shown at the specified constant
percentages of the Prepayment Assumption and the corresponding weighted average
life of each such class of certificates. The figures in the table are based on
the actual characteristics of the mortgage loans expected to be included in the
mortgage loan pool. For purposes of calculations under the columns at the
indicated percentages of the Prepayment Assumption (other than 0% of the
Prepayment Assumption) set forth in the table, it is assumed with respect to the
mortgage loans (the "Modeling Assumptions") that:

          (1) the distributions in respect of the certificates are made and
     received in cash on the 25th day of each month commencing in July 1999;

          (2) such mortgage loans prepay at the specified constant percentages
     of the Prepayment Assumption;

                                      S-57
<PAGE>   58

          (3) the aggregate outstanding Scheduled Principal Balance of such
     mortgage loans as of the Cut-off Date is $498,750,715.74;

          (4) no defaults or delinquencies in the payment by mortgagors of
     principal of and interest on such mortgage loans are experienced and GECMSI
     does not repurchase any such mortgage loans as permitted or required by the
     Agreement;

          (5) GECMSI does not exercise its option to repurchase all the mortgage
     loans in the trust as described under the caption "The Pooling and
     Servicing Agreement -- Termination" herein;

          (6) scheduled monthly payments on such mortgage loans are received on
     the first day of each month commencing in July 1999, and are computed prior
     to giving effect to prepayments received in the prior month;

          (7) prepayments representing payment in full of individual mortgage
     loans are received on the last day of each month (commencing June 1999) and
     include 30 days' interest thereon, and no Interest Shortfalls occur in
     respect of the mortgage loans;

          (8) the scheduled monthly payment for each such mortgage loan has been
     calculated based on its outstanding balance, interest rate and remaining
     term to maturity such that such mortgage loan will amortize in amounts
     sufficient to repay the remaining balance of such mortgage loan by its
     remaining term to maturity;

          (9) the initial Class Certificate Principal Balance and interest rate
     on the certificates for each class of certificates offered hereby are as
     indicated in the summary of this prospectus supplement;

          (10) the date of the initial issuance of the certificates is June 24,
     1999;

          (11) the amount distributable to certificateholders is not reduced by
     the incurrence of any expenses by the trust; and

          (12) the mortgage loans are divided into two groups (each, a "Mortgage
     Loan Group") and the mortgage loans in each Mortgage Loan Group have the
     respective characteristics described below:

<TABLE>
<CAPTION>
                                                                                         STATED
                        AGGREGATE SCHEDULED                                             REMAINING
                         PRINCIPAL BALANCE                                               TERM TO
                             AS OF THE          MORTGAGE      NET MORTGAGE     AGE      MATURITY
MORTGAGE LOAN GROUP        CUT-OFF DATE       INTEREST RATE       RATE       (MONTHS)   (MONTHS)
- -------------------     -------------------   -------------   ------------   --------   ---------
<S>                     <C>                   <C>             <C>            <C>        <C>
Discount..............    $ 21,930,013.12     6.5922205247%   6.3671438610%     1          358
Non-Discount..........     476,820,702.62     7.1898014840    6.9289503772      1          357
</TABLE>

     It is not likely that the mortgage loans will prepay at a constant level of
the Prepayment Assumption. In addition, because certain of such mortgage loans
will have remaining terms to maturity and will bear interest at rates that are
different from those assumed, the actual Class Certificate Principal Balance of
each class of certificates outstanding at any time and the actual weighted
average life of each class of such certificates may differ from the
corresponding information in the table for each indicated percentage of the
Prepayment Assumption. Furthermore, even if all the mortgage loans prepay at the
indicated percentages of the Prepayment Assumption and the weighted average
mortgage interest rate and weighted average remaining term to maturity of such
mortgage loans were to equal the weighted average mortgage interest rate and
weighted average remaining term to maturity of the assumed mortgage loans, due
to the actual

                                      S-58
<PAGE>   59

distribution of remaining terms to maturity and interest rates among the
mortgage loans, the actual principal balance of each class of certificates
outstanding at any time and the actual weighted average life of each class of
such certificates would differ (which difference could be material) from the
corresponding information set forth in the following table. In addition, if the
actual characteristics of the mortgage loans included in the mortgage loan pool
differ from those assumed in calculating the percentages set forth in the
tables, the actual class principal balance of each class of certificates
outstanding at any time and the actual weighted average life of each class of
certificates would differ (which difference would be material) from the
corresponding information in the tables for each indicated percentage of the
Prepayment Assumption.

                                      S-59
<PAGE>   60

            PERCENT OF ORIGINAL CLASS CERTIFICATE PRINCIPAL BALANCE
                        OUTSTANDING OF THE CERTIFICATES
<TABLE>
<CAPTION>
                                   CLASS A1
                     -------------------------------------
 DISTRIBUTION DATE    0%     150%    275%    400%    500%
 -----------------    --     ----    ----    ----    ----
<S>                  <C>     <C>     <C>     <C>     <C>
Initial Percent.....   100     100     100     100     100
June 2000...........    98      93      89      85      82
June 2001...........    96      79      66      52      42
June 2002...........    94      61      35      12       0
June 2003...........    92      43       9       0       0
June 2004...........    89      27       0       0       0
June 2005...........    87      14       0       0       0
June 2006...........    84       2       0       0       0
June 2007...........    81       0       0       0       0
June 2008...........    77       0       0       0       0
June 2009...........    74       0       0       0       0
June 2010...........    70       0       0       0       0
June 2011...........    66       0       0       0       0
June 2012...........    61       0       0       0       0
June 2013...........    57       0       0       0       0
June 2014...........    52       0       0       0       0
June 2015...........    46       0       0       0       0
June 2016...........    40       0       0       0       0
June 2017...........    34       0       0       0       0
June 2018...........    27       0       0       0       0
June 2019...........    20       0       0       0       0
June 2020...........    12       0       0       0       0
June 2021...........     4       0       0       0       0
June 2022...........     0       0       0       0       0
June 2023...........     0       0       0       0       0
June 2024...........     0       0       0       0       0
June 2025...........     0       0       0       0       0
June 2026...........     0       0       0       0       0
June 2027...........     0       0       0       0       0
June 2028...........     0       0       0       0       0
June 2029...........     0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....  14.1     3.7     2.5     2.0     1.8

<CAPTION>
                                CLASSES A2 AND A4
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100     100
June 2003...........    100     100     100     100     100
June 2004...........    100     100     100     100     100
June 2005...........    100     100     100     100      93
June 2006...........    100     100     100     100      30
June 2007...........    100     100     100      92       2
June 2008...........    100     100     100      62       0
June 2009...........    100     100     100      46       0
June 2010...........    100     100     100      34       0
June 2011...........    100     100     100      25       0
June 2012...........    100     100     100      19       0
June 2013...........    100     100      83      14       0
June 2014...........    100     100      67      10       0
June 2015...........    100     100      54       7       0
June 2016...........    100     100      43       5       0
June 2017...........    100     100      34       4       0
June 2018...........    100     100      27       3       0
June 2019...........    100     100      21       2       0
June 2020...........    100     100      16       1       0
June 2021...........    100      92      12       1       0
June 2022...........    100      76       9       1       0
June 2023...........    100      61       7       *       0
June 2024...........    100      47       5       *       0
June 2025...........    100      35       3       *       0
June 2026...........    100      24       2       *       0
June 2027...........    100      15       1       *       0
June 2028...........     92       6       *       *       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   29.4    25.1    17.4    10.8     6.8

<CAPTION>
                                    CLASS A3
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........     99      99      99      99      99
June 2001...........     98      98      98      98      98
June 2002...........     97      97      97      97      97
June 2003...........     96      96      96      96      96
June 2004...........     94      94      94      94      94
June 2005...........     93      90      88      85      83
June 2006...........     91      85      80      75      71
June 2007...........     90      79      71      63      57
June 2008...........     88      72      60      49      38
June 2009...........     86      64      49      37      26
June 2010...........     84      57      40      27      18
June 2011...........     82      50      33      20      12
June 2012...........     79      45      26      15       8
June 2013...........     77      39      21      11       6
June 2014...........     74      34      17       8       4
June 2015...........     71      30      14       6       3
June 2016...........     68      26      11       4       2
June 2017...........     65      23       9       3       1
June 2018...........     61      19       7       2       1
June 2019...........     57      17       5       2       *
June 2020...........     53      14       4       1       *
June 2021...........     48      12       3       1       *
June 2022...........     43      10       2       1       *
June 2023...........     38       8       2       *       *
June 2024...........     33       6       1       *       *
June 2025...........     27       4       1       *       *
June 2026...........     20       3       1       *       *
June 2027...........     13       2       *       *       *
June 2028...........      6       1       *       *       *
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   19.8    13.3    10.8     9.5     8.7
</TABLE>

- -------------------------
 *  Indicates an amount above zero and less than 0.5% of the original Class
    Certificate Principal Balance is outstanding.

(1) The weighted average life is determined as described on page S-57.

                                      S-60
<PAGE>   61

            PERCENT OF ORIGINAL CLASS CERTIFICATE PRINCIPAL BALANCE
                        OUTSTANDING OF THE CERTIFICATES
<TABLE>
<CAPTION>
                                   CLASS A5
                     -------------------------------------
 DISTRIBUTION DATE    0%     150%    275%    400%    500%
 -----------------    --     ----    ----    ----    ----
<S>                  <C>     <C>     <C>     <C>     <C>
Initial Percent.....   100     100     100     100     100
June 2000...........   100     100     100     100     100
June 2001...........   100     100     100     100     100
June 2002...........   100     100     100     100     100
June 2003...........   100     100     100     100     100
June 2004...........   100     100     100     100     100
June 2005...........   100     100     100     100      76
June 2006...........   100     100     100     100       0
June 2007...........   100     100     100      70       0
June 2008...........   100     100     100       0       0
June 2009...........   100     100     100       0       0
June 2010...........   100     100     100       0       0
June 2011...........   100     100     100       0       0
June 2012...........   100     100     100       0       0
June 2013...........   100     100      38       0       0
June 2014...........   100     100       0       0       0
June 2015...........   100     100       0       0       0
June 2016...........   100     100       0       0       0
June 2017...........   100     100       0       0       0
June 2018...........   100     100       0       0       0
June 2019...........   100     100       0       0       0
June 2020...........   100     100       0       0       0
June 2021...........   100      72       0       0       0
June 2022...........   100      11       0       0       0
June 2023...........   100       0       0       0       0
June 2024...........   100       0       0       0       0
June 2025...........   100       0       0       0       0
June 2026...........   100       0       0       0       0
June 2027...........   100       0       0       0       0
June 2028...........    71       0       0       0       0
June 2029...........     0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....  29.1    22.4    13.9     8.2     6.1

<CAPTION>
                               CLASSES A6 AND A7+
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100     100
June 2003...........    100     100     100     100     100
June 2004...........    100     100     100     100     100
June 2005...........    100     100     100     100     100
June 2006...........    100     100     100     100      42
June 2007...........    100     100     100     100       3
June 2008...........    100     100     100      85       0
June 2009...........    100     100     100      63       0
June 2010...........    100     100     100      47       0
June 2011...........    100     100     100      35       0
June 2012...........    100     100     100      26       0
June 2013...........    100     100     100      19       0
June 2014...........    100     100      92      14       0
June 2015...........    100     100      74      10       0
June 2016...........    100     100      59       7       0
June 2017...........    100     100      47       5       0
June 2018...........    100     100      37       4       0
June 2019...........    100     100      29       3       0
June 2020...........    100     100      22       2       0
June 2021...........    100     100      17       1       0
June 2022...........    100     100      13       1       0
June 2023...........    100      84       9       1       0
June 2024...........    100      65       7       *       0
June 2025...........    100      48       5       *       0
June 2026...........    100      33       3       *       0
June 2027...........    100      20       2       *       0
June 2028...........    100       8       1       *       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   29.5    26.1    18.7    11.8     7.0

<CAPTION>
                             CLASSES A8, A10 AND A11
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........     99      96      94      92      90
June 2001...........     98      88      80      73      67
June 2002...........     97      77      63      49      40
June 2003...........     95      67      48      31      20
June 2004...........     94      58      35      18       7
June 2005...........     92      50      26       9       0
June 2006...........     91      44      19       3       0
June 2007...........     89      38      13       0       0
June 2008...........     87      33       9       0       0
June 2009...........     85      28       6       0       0
June 2010...........     83      24       4       0       0
June 2011...........     80      21       2       0       0
June 2012...........     78      18       *       0       0
June 2013...........     75      15       0       0       0
June 2014...........     72      12       0       0       0
June 2015...........     69      10       0       0       0
June 2016...........     66       7       0       0       0
June 2017...........     62       6       0       0       0
June 2018...........     58       4       0       0       0
June 2019...........     54       2       0       0       0
June 2020...........     50       1       0       0       0
June 2021...........     45       0       0       0       0
June 2022...........     40       0       0       0       0
June 2023...........     34       0       0       0       0
June 2024...........     28       0       0       0       0
June 2025...........     22       0       0       0       0
June 2026...........     15       0       0       0       0
June 2027...........      7       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   19.2     7.5     4.5     3.3     2.8
</TABLE>

- -------------------------
 *  Indicates an amount above zero and less than 0.5% of the original Class
    Certificate Principal Balance is outstanding.

(1) The weighted average life is determined as described on page S-57.

 +  The weighted average life shown in the table for the Class A7 Certificates
    represents the weighted average life of the Class A7 Certificates taken as a
    whole and is not likely to reflect the experience of any particular
    investor. Because holders of the Class A7 Certificates will receive
    distributions in reduction of the Certificate Principal Balance of such
    certificates on the basis of Principal Distribution Requests or by random
    lot, the weighted average life of any such certificates owned by an
    individual investor may vary significantly from the weighted average life of
    the Class A7 Certificates taken as a whole.

                                      S-61
<PAGE>   62

            PERCENT OF ORIGINAL CLASS CERTIFICATE PRINCIPAL BALANCE
                        OUTSTANDING OF THE CERTIFICATES
<TABLE>
<CAPTION>
                                   CLASS A9
                     -------------------------------------
 DISTRIBUTION DATE    0%     150%    275%    400%    500%
 -----------------    --     ----    ----    ----    ----
<S>                  <C>     <C>     <C>     <C>     <C>
Initial Percent.....   100     100     100     100     100
June 0000...........    99      95      92      89      87
June 2001...........    97      85      75      66      58
June 2002...........    96      72      54      37      25
June 2003...........    94      59      35      15       1
June 2004...........    92      48      20       0       0
June 2005...........    90      38       8       0       0
June 2006...........    88      30       0       0       0
June 2007...........    86      22       0       0       0
June 2008...........    84      16       0       0       0
June 2009...........    81      11       0       0       0
June 2010...........    78       6       0       0       0
June 2011...........    76       1       0       0       0
June 2012...........    72       0       0       0       0
June 2013...........    69       0       0       0       0
June 2014...........    65       0       0       0       0
June 2015...........    61       0       0       0       0
June 2016...........    57       0       0       0       0
June 2017...........    53       0       0       0       0
June 2018...........    48       0       0       0       0
June 2019...........    43       0       0       0       0
June 2020...........    37       0       0       0       0
June 2021...........    31       0       0       0       0
June 2022...........    25       0       0       0       0
June 2023...........    18       0       0       0       0
June 2024...........    10       0       0       0       0
June 2025...........     3       0       0       0       0
June 2026...........     0       0       0       0       0
June 2027...........     0       0       0       0       0
June 2028...........     0       0       0       0       0
June 2029...........     0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....  17.1     5.4     3.4     2.6     2.3

<CAPTION>
                                    CLASS A12
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 0000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100      91
June 2003...........    100     100     100      62      24
June 2004...........    100     100      76      16       0
June 2005...........    100     100      44       0       0
June 2006...........    100     100      19       0       0
June 2007...........    100      84       0       0       0
June 2008...........    100      66       0       0       0
June 2009...........    100      51       0       0       0
June 2010...........    100      38       0       0       0
June 2011...........    100      26       0       0       0
June 2012...........    100      15       0       0       0
June 2013...........    100       5       0       0       0
June 2014...........    100       0       0       0       0
June 2015...........    100       0       0       0       0
June 2016...........    100       0       0       0       0
June 2017...........    100       0       0       0       0
June 2018...........    100       0       0       0       0
June 2019...........    100       0       0       0       0
June 2020...........    100       0       0       0       0
June 2021...........    100       0       0       0       0
June 2022...........     90       0       0       0       0
June 2023...........     71       0       0       0       0
June 2024...........     51       0       0       0       0
June 2025...........     29       0       0       0       0
June 2026...........      5       0       0       0       0
June 2027...........      0       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   25.0    10.4     6.0     4.3     3.6

<CAPTION>
                                   CLASS A13+
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 0000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100     100
June 2003...........    100     100     100     100     100
June 2004...........    100     100     100     100       0
June 2005...........    100     100     100      19       0
June 2006...........    100     100     100       0       0
June 2007...........    100     100     100       0       0
June 2008...........    100     100      22       0       0
June 2009...........    100     100       0       0       0
June 2010...........    100     100       0       0       0
June 2011...........    100     100       0       0       0
June 2012...........    100     100       0       0       0
June 2013...........    100     100       0       0       0
June 2014...........    100      75       0       0       0
June 2015...........    100      29       0       0       0
June 2016...........    100       0       0       0       0
June 2017...........    100       0       0       0       0
June 2018...........    100       0       0       0       0
June 2019...........    100       0       0       0       0
June 2020...........    100       0       0       0       0
June 2021...........    100       0       0       0       0
June 2022...........    100       0       0       0       0
June 2023...........    100       0       0       0       0
June 2024...........    100       0       0       0       0
June 2025...........    100       0       0       0       0
June 2026...........    100       0       0       0       0
June 2027...........      0       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   27.6    15.6     8.7     5.8     4.7
</TABLE>

- -------------------------
(1) The weighted average life is determined as described on page S-57.

 +  The weighted average life shown in the table for this class of certificates
    represents the weighted average life of these certificates taken as a whole
    and is not likely to reflect the experience of any particular investor.
    Because holders of these certificates will receive distributions in
    reduction of the Certificate Principal Balance of such certificates on the
    basis of Principal Distribution Requests or by random lot, the weighted
    average life of any such certificates owned by an individual investor may
    vary significantly from the weighted average life of this class of
    certificates taken as a whole.

                                      S-62
<PAGE>   63

            PERCENT OF ORIGINAL CLASS CERTIFICATE PRINCIPAL BALANCE
                        OUTSTANDING OF THE CERTIFICATES
<TABLE>
<CAPTION>
                                   CLASS A14
                     -------------------------------------
 DISTRIBUTION DATE    0%     150%    275%    400%    500%
 -----------------    --     ----    ----    ----    ----
<S>                  <C>     <C>     <C>     <C>     <C>
Initial Percent.....   100     100     100     100     100
June 2000...........   100     100     100     100     100
June 2001...........   100     100     100     100     100
June 2002...........   100     100     100     100     100
June 2003...........   100     100     100     100     100
June 2004...........   100     100     100     100      53
June 2005...........   100     100     100      68       0
June 2006...........   100     100     100      23       0
June 2007...........   100     100     100       0       0
June 2008...........   100     100      70       0       0
June 2009...........   100     100      47       0       0
June 2010...........   100     100      29       0       0
June 2011...........   100     100      14       0       0
June 2012...........   100     100       1       0       0
June 2013...........   100     100       0       0       0
June 2014...........   100      90       0       0       0
June 2015...........   100      72       0       0       0
June 2016...........   100      56       0       0       0
June 2017...........   100      41       0       0       0
June 2018...........   100      28       0       0       0
June 2019...........   100      16       0       0       0
June 2020...........   100       6       0       0       0
June 2021...........   100       0       0       0       0
June 2022...........   100       0       0       0       0
June 2023...........   100       0       0       0       0
June 2024...........   100       0       0       0       0
June 2025...........   100       0       0       0       0
June 2026...........   100       0       0       0       0
June 2027...........    55       0       0       0       0
June 2028...........     0       0       0       0       0
June 2029...........     0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....  28.1    17.7    10.1     6.5     5.1

<CAPTION>
                                   CLASS A15+
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100     100
June 2003...........    100     100     100     100     100
June 2004...........    100     100     100     100      84
June 2005...........    100     100     100     100       0
June 2006...........    100     100     100      21       0
June 2007...........    100     100     100       0       0
June 2008...........    100     100     100       0       0
June 2009...........    100     100      72       0       0
June 2010...........    100     100      33       0       0
June 2011...........    100     100       2       0       0
June 2012...........    100     100       0       0       0
June 2013...........    100     100       0       0       0
June 2014...........    100     100       0       0       0
June 2015...........    100     100       0       0       0
June 2016...........    100      90       0       0       0
June 2017...........    100      60       0       0       0
June 2018...........    100      32       0       0       0
June 2019...........    100       7       0       0       0
June 2020...........    100       0       0       0       0
June 2021...........    100       0       0       0       0
June 2022...........    100       0       0       0       0
June 2023...........    100       0       0       0       0
June 2024...........    100       0       0       0       0
June 2025...........    100       0       0       0       0
June 2026...........    100       0       0       0       0
June 2027...........     89       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   28.4    18.4    10.6     6.7     5.3

<CAPTION>
                                   CLASS A16+
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........    100     100     100     100     100
June 2001...........    100     100     100     100     100
June 2002...........    100     100     100     100     100
June 2003...........    100     100     100     100     100
June 2004...........    100     100     100     100     100
June 2005...........    100     100     100     100       0
June 2006...........    100     100     100     100       0
June 2007...........    100     100     100       0       0
June 2008...........    100     100     100       0       0
June 2009...........    100     100     100       0       0
June 2010...........    100     100     100       0       0
June 2011...........    100     100     100       0       0
June 2012...........    100     100      11       0       0
June 2013...........    100     100       0       0       0
June 2014...........    100     100       0       0       0
June 2015...........    100     100       0       0       0
June 2016...........    100     100       0       0       0
June 2017...........    100     100       0       0       0
June 2018...........    100     100       0       0       0
June 2019...........    100     100       0       0       0
June 2020...........    100      44       0       0       0
June 2021...........    100       0       0       0       0
June 2022...........    100       0       0       0       0
June 2023...........    100       0       0       0       0
June 2024...........    100       0       0       0       0
June 2025...........    100       0       0       0       0
June 2026...........    100       0       0       0       0
June 2027...........    100       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   28.9    21.0    12.6     7.6     5.8
</TABLE>

- -------------------------
(1) The weighted average life is determined as described on page S-57.

 +  The weighted average life shown in the table for this class of certificates
    represents the weighted average life of these certificates taken as a whole
    and is not likely to reflect the experience of any particular investor.
    Because holders of these certificates will receive distributions in
    reduction of the Certificate Principal Balance of such certificates on the
    basis of Principal Distribution Requests or by random lot, the weighted
    average life of any such certificates owned by an individual investor may
    vary significantly from the weighted average life of this class of
    certificates taken as a whole.

                                      S-63
<PAGE>   64

            PERCENT OF ORIGINAL CLASS CERTIFICATE PRINCIPAL BALANCE
                        OUTSTANDING OF THE CERTIFICATES
<TABLE>
<CAPTION>
                                   CLASS A17
                     -------------------------------------
 DISTRIBUTION DATE    0%     150%    275%    400%    500%
 -----------------    --     ----    ----    ----    ----
<S>                  <C>     <C>     <C>     <C>     <C>
Initial Percent.....   100     100     100     100     100
June 2000...........   100     100     100     100     100
June 2001...........   100     100     100     100     100
June 2002...........   100     100     100     100     100
June 2003...........   100     100     100     100     100
June 2004...........   100     100     100      91      36
June 2005...........   100     100     100      46       0
June 2006...........   100     100      96      16       0
June 2007...........   100     100      68       0       0
June 2008...........   100     100      47       0       0
June 2009...........   100     100      32       0       0
June 2010...........   100     100      20       0       0
June 2011...........   100     100       9       0       0
June 2012...........   100      90       1       0       0
June 2013...........   100      75       0       0       0
June 2014...........   100      61       0       0       0
June 2015...........   100      49       0       0       0
June 2016...........   100      38       0       0       0
June 2017...........   100      28       0       0       0
June 2018...........   100      19       0       0       0
June 2019...........   100      11       0       0       0
June 2020...........   100       4       0       0       0
June 2021...........   100       0       0       0       0
June 2022...........   100       0       0       0       0
June 2023...........   100       0       0       0       0
June 2024...........   100       0       0       0       0
June 2025...........   100       0       0       0       0
June 2026...........    75       0       0       0       0
June 2027...........    38       0       0       0       0
June 2028...........     0       0       0       0       0
June 2029...........     0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....  27.7    16.3     9.3     6.1     4.9

<CAPTION>
                              CLASSES M, B1 AND B2
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........     99      99      99      99      99
June 2001...........     98      98      98      98      98
June 2002...........     97      97      97      97      97
June 2003...........     96      96      96      96      96
June 2004...........     94      94      94      94      94
June 2005...........     93      90      88      85      83
June 2006...........     91      85      80      75      71
June 2007...........     90      79      71      63      57
June 2008...........     88      72      60      49      42
June 2009...........     86      64      49      37      29
June 2010...........     84      57      40      27      20
June 2011...........     82      50      33      20      13
June 2012...........     79      45      26      15       9
June 2013...........     77      39      21      11       6
June 2014...........     74      34      17       8       4
June 2015...........     71      30      14       6       3
June 2016...........     68      26      11       4       2
June 2017...........     65      23       9       3       1
June 2018...........     61      19       7       2       1
June 2019...........     57      17       5       2       1
June 2020...........     53      14       4       1       *
June 2021...........     48      12       3       1       *
June 2022...........     43      10       2       1       *
June 2023...........     38       8       2       *       *
June 2024...........     33       6       1       *       *
June 2025...........     27       4       1       *       *
June 2026...........     20       3       1       *       *
June 2027...........     13       2       *       *       *
June 2028...........      6       1       *       *       *
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....   19.8    13.3    10.8     9.5     8.8

<CAPTION>
                                     CLASS R
                      -------------------------------------
 DISTRIBUTION DATE     0%     150%    275%    400%    500%
 -----------------     --     ----    ----    ----    ----
<S>                   <C>     <C>     <C>     <C>     <C>
Initial Percent.....    100     100     100     100     100
June 2000...........      0       0       0       0       0
June 2001...........      0       0       0       0       0
June 2002...........      0       0       0       0       0
June 2003...........      0       0       0       0       0
June 2004...........      0       0       0       0       0
June 2005...........      0       0       0       0       0
June 2006...........      0       0       0       0       0
June 2007...........      0       0       0       0       0
June 2008...........      0       0       0       0       0
June 2009...........      0       0       0       0       0
June 2010...........      0       0       0       0       0
June 2011...........      0       0       0       0       0
June 2012...........      0       0       0       0       0
June 2013...........      0       0       0       0       0
June 2014...........      0       0       0       0       0
June 2015...........      0       0       0       0       0
June 2016...........      0       0       0       0       0
June 2017...........      0       0       0       0       0
June 2018...........      0       0       0       0       0
June 2019...........      0       0       0       0       0
June 2020...........      0       0       0       0       0
June 2021...........      0       0       0       0       0
June 2022...........      0       0       0       0       0
June 2023...........      0       0       0       0       0
June 2024...........      0       0       0       0       0
June 2025...........      0       0       0       0       0
June 2026...........      0       0       0       0       0
June 2027...........      0       0       0       0       0
June 2028...........      0       0       0       0       0
June 2029...........      0       0       0       0       0
Weighted Average
  Life
  (in years)(1).....    0.1     0.1     0.1     0.1     0.1
</TABLE>

- -------------------------
 *  Indicates an amount above zero and less than 0.5% of the original Class
    Certificate Principal Balance is outstanding.

(1) The weighted average life is determined as described on page S-57.

                                      S-64
<PAGE>   65

GE CAPITAL MORTGAGE SERVICES, INC.

     GECMSI, a wholly-owned subsidiary of GE Capital Mortgage Corporation, is a
New Jersey corporation originally incorporated in 1949. The principal executive
office of GECMSI is located at Three Executive Campus, Cherry Hill, New Jersey
08002, telephone (609) 661-6100. For a general description of GECMSI and its
activities, see "GE Capital Mortgage Services, Inc." in the accompanying
prospectus.

     GECMSI currently maintains an electronic bulletin board, accessible by
computer modem, which provides certain information about loans included in
various series of mortgage pass-through securities that GECMSI has publicly
offered. GECMSI makes no representation or warranty that such information will
be suitable for any particular purpose and GECMSI assumes no responsibility for
the accuracy or completeness of any information that is generated by others
using such information. GECMSI has no obligation to maintain the bulletin board
and may stop maintaining it any time. For further information concerning the
bulletin board, you should call 800-544-3466, extension 5515.

DELINQUENCY AND FORECLOSURE EXPERIENCE OF GECMSI

     The following delinquency tables set forth certain information concerning
the delinquency and foreclosure experience on one- to four-family conventional
residential mortgage loans serviced directly by GECMSI, excluding Home Equity
Loans (as defined in the prospectus) and special loan portfolios which, upon the
GECMSI's commencement of servicing responsibilities, consisted of significant
numbers of mortgage loans that were seriously delinquent or in foreclosure. The
servicing portfolio does not include mortgage loans that were serviced or
sub-serviced by others.

<TABLE>
<CAPTION>
                             AS OF DECEMBER 31,       AS OF DECEMBER 31,       AS OF DECEMBER 31,
                                    1996                     1997                     1998
                            ---------------------   ----------------------   ----------------------
                            BY NO.     BY DOLLAR    BY NO.      BY DOLLAR    BY NO.      BY DOLLAR
                              OF       AMOUNT OF      OF        AMOUNT OF      OF        AMOUNT OF
                             LOANS       LOANS       LOANS        LOANS       LOANS        LOANS
                            -------   -----------   -------    -----------   -------    -----------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                         <C>       <C>           <C>        <C>           <C>        <C>
Total portfolio...........  785,928   $88,188,662   726,869    $83,535,531   622,179    $75,039,774
                            =======   ===========   =======    ===========   =======    ===========
Period of delinquency(1)
  30 to 59 days...........    3,362   $   353,209     2,687    $   281,657     2,314    $   242,342
  60 to 89 days...........    1,177       135,668       632         71,245       526         56,889
  90 days or more(2)......    6,867       892,643     5,442        662,342     4,561        512,734
                            -------   -----------   -------    -----------   -------    -----------
Total delinquent loans....   11,406   $ 1,381,520     8,761    $ 1,051,244     7,401    $   811,965
                            =======   ===========   =======    ===========   =======    ===========
Percent of portfolio......     1.45%         1.57%     1.21%          1.22%     1.19%          1.08%
</TABLE>

                                      S-65
<PAGE>   66

<TABLE>
<CAPTION>
                                            AS OF MARCH 31,         AS OF MARCH 31,
                                                 1998                     1999
                                         ---------------------   ----------------------
                                         BY NO.     BY DOLLAR    BY NO.      BY DOLLAR
                                           OF       AMOUNT OF      OF        AMOUNT OF
                                          LOANS       LOANS       LOANS        LOANS
                                         -------   -----------   -------    -----------
                                                 (DOLLAR AMOUNTS IN THOUSANDS)
<S>                                      <C>       <C>           <C>        <C>
Total portfolio........................  704,085   $81,644,151   598,583    $72,701,241
                                         =======   ===========   =======    ===========
Period of delinquency(1)
  30 to 59 days........................    2,347   $   248,451     1,669        178,506
  60 to 89 days........................      562        60,476       353         36,246
  90 days or more(2)...................    5,140       617,229     4,223        482,267
                                         -------   -----------   -------    -----------
Total delinquent loans.................    8,049       926,156     6,245        697,019
                                         =======   ===========   =======    ===========
Percent of portfolio...................     1.14%         1.13%     1.04%          0.96%
</TABLE>

- ------------------------
(1) The indicated periods of delinquency are based on the number of days past
    due on a contractual basis, based on a 30-day month. No mortgage loan is
    considered delinquent for these purposes until the monthly anniversary of
    its contractual due date (e.g., a mortgage loan with a payment due on
    January 1 would first be considered delinquent on February 1). The
    delinquencies reported above were determined as of the dates indicated.

(2) Includes pending foreclosures.

<TABLE>
<CAPTION>
                                               AS OF DECEMBER 31,
                                    -----------------------------------------
                                       1996           1997           1998
                                    -----------    -----------    -----------
                                          (DOLLAR AMOUNTS IN THOUSANDS)
<S>                                 <C>            <C>            <C>
Total portfolio...................  $88,188,662    $83,535,531    $75,039,774
Foreclosures(1)...................      372,800        271,046        189,421
Foreclosure ratio.................         0.42%          0.32%          0.25%
</TABLE>

<TABLE>
<CAPTION>
                                                         AS OF MARCH 31,
                                                  ------------------------------
                                                      1998             1999
                                                      ----             ----
                                                  (DOLLAR AMOUNTS IN THOUSANDS)
                                                  ------------------------------
<S>                                               <C>              <C>
Total portfolio...............................     $81,644,151      $72,701,241
Foreclosures(1)...............................         233,929          203,664
Foreclosure ratio.............................            0.29%            0.28%
</TABLE>

- -------------------------
(1) Foreclosures represent the principal balance of mortgage loans secured by
    mortgaged properties, the title to which has been acquired by GECMSI, by
    investors or by an insurer following foreclosure or delivery of a deed in
    lieu of foreclosure and which had not been liquidated at the end of the
    period indicated. The length of time necessary to complete the liquidation
    of such mortgaged properties may be affected by prevailing economic
    conditions and the marketability of the mortgaged properties.

     We are not currently aware of specific trends that have affected our recent
delinquency and loss experience, nor are we currently aware of any trends that
are likely to affect the future performance of our servicing portfolio.

     The delinquency and foreclosure experience set forth above is historical
and is based on the servicing of mortgage loans that may not be representative
of the mortgage loans in the trust. Consequently, there can be no assurance that
the delinquency and foreclosure experience on the mortgage loans in the trust
will be consistent with the data set forth above. The servicing portfolio, for
example, includes mortgage loans having a wide variety of payment
characteristics (e.g., fixed-rate mortgage loans, adjustable rate mortgage loans
and graduated payment mortgage loans) and mortgage loans secured by mortgaged

                                      S-66
<PAGE>   67

properties in geographic locations that may not be representative of the
geographic locations of the mortgage loans in the trust. The servicing portfolio
also includes mortgage loans originated in accordance with GECMSI's
then-applicable underwriting policies as well as mortgage loans not originated
in accordance with such policies but as to which GECMSI had acquired the related
servicing rights.

     The servicing portfolio includes many mortgage loans which have not been
outstanding long enough to have seasoned to a point where delinquencies would be
fully reflected. In the absence of such substantial continuous additions of
servicing for recently originated mortgage loans to the servicing portfolio, it
is possible that the delinquency and foreclosure percentages experienced in the
future could be significantly higher than those indicated in the tables above.
Investors should further note that a number of social, economic, tax,
geographic, demographic, legal and other factors may adversely affect the timely
payment by borrowers of scheduled payments of principal and interest on the
mortgage loans in the servicing portfolio, which could, in turn, cause an
increase in delinquency and foreclosure rates. These factors include economic
conditions, either nationally or in geographic areas where GECMSI's servicing
portfolio tends to be concentrated, the age of the mortgage loans in the trust,
the geographic distribution of the mortgaged properties, the payment terms of
the mortgages, the characteristics of the mortgagors, enforceability of
due-on-sale clauses and servicing decisions.

USE OF PROCEEDS

     The net proceeds from the sale of the certificates offered hereby will be
general funds used by GECMSI for general corporate purposes, including the
acquisition of residential mortgage loans and servicing rights.

THE POOLING AND SERVICING AGREEMENT

     The certificates will be issued pursuant to the Agreement. The following
summaries describe the material provisions of the Agreement that are unique to
this offering of certificates. See "The Pooling and Servicing Agreement" in the
accompanying prospectus for summaries of the other material provisions of the
Agreement. The summaries below do not purport to be complete and are subject to,
and qualified in their entirety by reference to, the provisions of the
Agreement. Where particular provisions or terms used in the Agreement are
referred to, those provisions or terms are as specified in the Agreement.

SERVICING ARRANGEMENT WITH RESPECT TO THE MORTGAGE LOANS

     It is expected that GECMSI will directly service approximately 70% (by
aggregate Scheduled Principal Balance as of the Cut-off Date) of the mortgage
loans and will function as master servicer with respect to the remaining
mortgage loans pursuant to a Direct Master Servicing Arrangement. Such
master-serviced loans will be directly serviced by the entities which originated
or acquired those loans and sold them to GECMSI. The Agreement permits GECMSI to
use other primary servicing agents from time to time. See "Servicing of the
Mortgage Loans" in the accompanying prospectus.

COLLECTION ACCOUNT

     The Agreement provides that if GECMSI or the Trustee obtains actual notice
or knowledge of the occurrence of a Trigger Event or the downgrade of GE
Capital's short term unsecured rating below A-1+ by Standard & Poor's Ratings
Services, a division of The McGraw-Hill Companies, Inc. ("S&P"), GECMSI will, in
lieu of the Loan Payment

                                      S-67
<PAGE>   68

Record described under the caption "Servicing of the Mortgage Loans -- Loan
Payment Record" in the accompanying prospectus, establish and maintain or cause
to be established and maintained a separate account (the "Collection Account")
for the certificates for the collection of payments on the mortgage loans;
provided, however, that such action will not be required if GECMSI delivers to
the Trustee a letter from each rating agency which originally rated the
certificates to the effect that the failure to take such action would not cause
such rating agency to withdraw or reduce its then current rating of such
certificates. If established, such Collection Account would be:

      --   maintained with a depository institution the debt obligations of
           which are, at the time of any deposit therein, rated by each of Fitch
           IBCA, Inc. ("Fitch") and S&P in one of its two highest long-term
           rating categories and by S&P in its highest short-term rating
           category;

      --   an account or accounts the deposits in which are fully insured by
           either the Bank Insurance Fund (the "BIF") of the Federal Deposit
           Insurance Corporation (the "FDIC") or the Savings Association
           Insurance Fund (as successor to the Federal Savings and Loan
           Insurance Corporation) of the FDIC (the "SAIF");

      --   an account or accounts with a depository institution, which accounts
           are insured by the BIF or SAIF (to the limits established by the
           FDIC), and which uninsured deposits are invested in United States
           government securities or other high quality investments, or are
           otherwise secured to the extent required by Fitch and S&P such that,
           as evidenced by an opinion of counsel, the holders of the
           certificates have a claim with respect to the funds in the account or
           a perfected first security interest against any collateral securing
           such funds that is superior to claims of any other depositors or
           creditors of the depository institution with which the account is
           maintained;

      --   a trust account maintained with the corporate trust department of a
           federal or state chartered depository institution or trust company
           with trust powers and acting in its fiduciary capacity for the
           benefit of the Trustee; or

      --   an account as will not cause either Fitch or S&P to downgrade or
           withdraw its then-current ratings assigned to the certificates.

If a Collection Account is established for the certificates, all amounts
credited or debited to the Loan Payment Record in the manner described under the
caption "Servicing of the Mortgage Loans -- Loan Payment Record" will instead be
deposited or withdrawn from the related Collection Account. See "Servicing of
the Mortgage Loans -- Loan Payment Record" in the accompanying prospectus.

     Prior to the occurrence of a Trigger Event, GECMSI will transfer to the
Certificate Account, in next day funds, the Available Funds for the related
Distribution Date on the business day immediately preceding such Distribution
Date.

ADVANCES

     In the event that any mortgagor fails to make any payment of principal or
interest required under the terms of a mortgage loan, GECMSI will advance the
entire amount of such payment, net of the applicable servicing fee, less the
amount of any such payment that GECMSI reasonably believes will not be
recoverable out of liquidation proceeds or otherwise. See "Servicing of the
Mortgage Loans -- Advances" in the accompanying prospectus for more information.

                                      S-68
<PAGE>   69

     The Trustee will make advances of delinquent principal and interest
payments in the event of a failure by GECMSI to perform its obligation to do so,
provided that the Trustee will not make such advance to the extent that it
reasonably believes the payment will not be recoverable to it out of related
liquidation or insurance proceeds or otherwise. The Trustee will be entitled to
reimbursement for advances in a manner similar to GECMSI's entitlement as
described in the accompanying prospectus.

     As a result of the subordination of the junior certificates, the effect of
reimbursements to GECMSI or the Trustee of previous advances from liquidation or
insurance proceeds and of nonrecoverable advances will generally be borne by the
holders of the junior certificates (to the extent then outstanding) in inverse
order of priority before they are borne by holders of the senior certificates.

PURCHASES OF DEFAULTED MORTGAGE LOANS

     Under the Agreement, GECMSI will have the option (but not the obligation)
to purchase any mortgage loan as to which the mortgagor has failed to make
unexcused payment in full of three or more scheduled payments of principal and
interest (a "Defaulted Mortgage Loan"). Any such purchase will be for a price
equal to 100% of the outstanding principal balance of such mortgage loan, plus
accrued and unpaid interest thereon at the Net Mortgage Rate, less any amounts
representing previously unreimbursed advances. The purchase price for any
Defaulted Mortgage Loan will be deposited in the Certificate Account on the
business day prior to the Distribution Date on which the proceeds of such
purchase are to be distributed to the certificateholders.

SERVICING COMPENSATION, COMPENSATING INTEREST AND PAYMENT OF EXPENSES

     GECMSI's primary compensation for its servicing activities will come from
the payment to it, with respect to each interest payment on any mortgage loan,
of the servicing fee at the rate described below. As to each mortgage loan, the
servicing fee rate will be a fixed rate per annum of the outstanding principal
balance of such mortgage loan, expected to range from approximately 0.20% to
0.29%, with an anticipated initial weighted average rate of between
approximately 0.25% and 0.27%. The aggregate servicing compensation to GECMSI
could vary depending on the prepayment experience of the mortgage loans. The
servicing compensation of any direct servicer of any mortgage loan will be paid
out of the related servicing fee, and GECMSI will retain the balance of the
servicing fee as part of its servicing compensation, (subject to its obligation
to make Compensating Interest Payments, as described below).

     To the extent any voluntary prepayment results in an Interest Shortfall (as
described in clauses (1) and (2) of the definition thereof) with respect to any
Distribution Date, GECMSI will be obligated to remit an amount (such amount, a
"Compensating Interest Payment") sufficient to pass through to
certificateholders the full amount of interest to which they would have been
entitled in the absence of such prepayments, but in no event greater than the
lesser of (a) 1/12th of 0.125% of the Pool Scheduled Principal Balance for such
Distribution Date and (b) the aggregate amount received by GECMSI on account of
its servicing fees (net of any servicing compensation paid to any direct
servicer) in connection with such Distribution Date. Because the net amount
received by GECMSI on account of its servicing fee is generally less in the case
of mortgage loans master-serviced by GECMSI than in the case of mortgage loans
GECMSI services directly, the amounts available for any Compensating Interest
Payment with respect to any Distribution Date will generally decrease to the
extent the proportion of Outstanding Mortgage Loans

                                      S-69
<PAGE>   70

master-serviced by GECMSI increases, and increase to the extent the proportion
of such mortgage loans decreases. It is expected that no more than 32% of the
mortgage loans (by aggregate Scheduled Principal Balance as of the Cut-off Date)
will be master-serviced by GECMSI. This percentage could vary over time,
however, if mortgage loans directly serviced by GECMSI experience a
disproportionately high or low level of prepayments or defaults relative to
mortgage loans master-serviced by GECMSI. In addition, the proportion of
master-serviced mortgage loans could be affected as a result of (1) the exercise
by GECMSI of its right under the Agreement to contract with third parties to
directly service mortgage loans, with GECMSI becoming the master servicer of
such mortgage loans, or (2) the substitution of any mortgage loans under the
Agreement.

     GECMSI will retain, as additional servicing compensation, amounts in
respect of interest paid by borrowers in connection with any principal
prepayment in full received by GECMSI (or, with respect to mortgage loans
master-serviced by GECMSI, of which the Company receives notice) from the first
day through the fifteenth day of each month, other than the month of the Cut-off
Date.

     GECMSI will pay expenses incurred in connection with its responsibilities
under the Agreement, subject to limited reimbursement as described herein and in
the accompanying Prospectus. See "Servicing of the Mortgage Loans -- Servicing
and Other Compensation and Payment of Expenses" in the accompanying prospectus
for information regarding other possible compensation to GECMSI.

TRUSTEE

     The Trustee for the certificates offered hereby will be State Street Bank
and Trust Company, a Massachusetts banking corporation organized and existing
under the laws of the Commonwealth of Massachusetts. The Corporate Trust Office
of the Trustee is located at 225 Franklin Street, Boston, Massachusetts 02110.

OPTIONAL TERMINATION

     GECMSI may, at its option, repurchase all of the mortgage loans underlying
the certificates and thereby effect the early retirement of the certificates and
cause the termination of the trust on any Distribution Date after the aggregate
Scheduled Principal Balance of the mortgage loans is less than 10% of the
aggregate Scheduled Principal Balance thereof as of the Cut-off Date. Under the
Agreement, the Trustee will provide notice to certificateholders of this final
distribution. This notice will state:

     (1) the distribution date on which the final distribution will be made;

     (2) the amount of the final distribution; and

     (3) that the final distribution on each certificate will be paid only upon
         surrender of such certificate.

     GECMSI may not exercise this option unless the Trustee has received an
opinion of counsel that the exercise of such option will not subject the trust
to a tax on prohibited transactions or result in the failure of the trust to
qualify as a REMIC.

     In accordance with the Agreement, any such repurchase by GECMSI of the
assets included in the trust will be at a price equal to the sum of:

     (1) 100% of the unpaid principal balance of each mortgage loan in the trust
         other than a mortgage loan described in clause (2) below, as of the
         first day of the month of such repurchase, plus accrued and unpaid
         interest thereon to the first

                                      S-70
<PAGE>   71

         day of the month of such repurchase at the related Net Mortgage Rate,
         less any amounts representing previously unreimbursed advances; and

     (2) the appraised value of any property acquired in respect of a related
         mortgage loan less any amounts representing previously unreimbursed
         advances in respect thereof and a good faith estimate of liquidation
         expenses.

     The Available Funds on the final Distribution Date will be allocated to
each class of certificates in accordance with the priorities described under
"Description of the Certificates -- Distributions on the
Certificates -- Allocation of Available Funds." Accordingly, if the Available
Funds on the final Distribution Date are less than the aggregate principal
balance of all outstanding certificates plus accrued and unpaid interest
thereon, then in the event that such Distribution Date occurs:

     - prior to the Cross-over Date, the resulting shortfall will borne by the
       certificates in inverse order of their related payment priorities, and

     - on or after the Cross-over Date, such shortfall will be borne pro rata
       among the senior certificates.

     No holder of any certificates will be entitled to any Unanticipated
Recoveries received with respect to any mortgage loan after the termination of
the trust. See "Servicing of the Mortgage Loans -- Unanticipated Recoveries of
Losses on the Mortgage Loans" in the prospectus.

VOTING RIGHTS

     The Class S Certificates will be allocated 1% of the votes and the other
classes of certificates in the aggregate will be allocated 99% of the votes
eligible to be cast in connection with any vote of all certificateholders under
the Agreement.

     Votes allocated to the certificates under the Agreement will be allocated
among the classes (and among the certificates within each such class) in
proportion to their Class Certificate Principal Balances.

FEDERAL INCOME TAX CONSEQUENCES

     The following discussion, insofar as it states conclusions of law,
represents the opinion of Cleary, Gottlieb, Steen & Hamilton, special counsel to
GECMSI.

     An election will be made to treat the trust as a REMIC for federal income
tax purposes.

     The certificates other than the residual certificates (the "Regular
Certificates") will be designated as "regular interests" in the REMIC and the
residual certificates will be designated as the "residual interest" in REMIC.

Regular Certificates

     The Regular Certificates generally will be treated as debt instruments
issued by the REMIC for federal income tax purposes. Income on Regular
Certificates must be reported under an accrual method of accounting. Certain
classes of Regular Certificates (other than the Class A14 Certificates) may be
issued with original issue discount in an amount equal to the excess of their
initial respective Class Certificate Principal Balances (plus accrued interest
from the last day preceding the issue date corresponding to a Distribution Date
through the issue date), over their issue prices (including all accrued
interest). The

                                      S-71
<PAGE>   72

Class A14 Certificates will be treated as being issued with original issue
discount in an amount equal to the excess of (1) the sum of all payments thereon
determined under the prepayment assumption described below, over (2) their issue
price. The prepayment assumption 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 by a holder of a Regular Certificate
to amortize premium, will be 275% of the Prepayment Assumption. No
representation is made as to the actual rate at which the mortgage loans will
prepay. See "Federal Income Tax Consequences -- REMIC Certificates -- Income
from Regular Certificates" in the accompanying prospectus.

     The requirement to report income on a Regular Certificate under an accrual
method may result in the inclusion of amounts in income that are not currently
distributed in cash. In the case of a junior certificate, accrued income may
exceed cash distributions as a result of the preferential right of classes of
senior certificates to receive cash distributions in the event of losses or
delinquencies on mortgage loans. Prospective purchasers of junior certificates
should consult their tax advisors regarding the timing of income from those
certificates and the timing and character of any deductions that may be
available with respect to principal or accrued interest that is not paid. See
"Federal Income Tax Consequences -- REMIC Certificates -- Income from Regular
Certificates" in the accompanying prospectus.

Residual Certificates

     The holders of the residual certificates must include the taxable income of
the REMIC in their federal taxable income. The resulting tax liability of the
holders may exceed cash distributions to such holders during certain periods.
All or a portion of the taxable income from the residual certificates recognized
by a holder may be treated as "excess inclusion" income, which with limited
exceptions is subject to U.S. federal income tax in all events.

     Under Treasury regulations, the residual certificates may be considered to
be "noneconomic residual interests" at the time they are issued, in which event
certain transfers thereof would be disregarded for federal income tax purposes.

     Prospective purchasers of the residual certificates should consider
carefully the tax consequences of an investment in residual certificates
discussed in the prospectus and should consult their own tax advisors with
respect to those consequences. See "Federal Income Tax Consequences -- REMIC
Certificates -- Income from Residual Certificates -- Taxation of Certain Foreign
Investors -- Servicing Compensation and Other REMIC Pool Expense -- Transfers of
Residual Certificates."

ERISA CONSIDERATIONS

     As described in the prospectus under "ERISA Considerations," the Employee
Retirement Income Security Act of 1974, as amended ("ERISA"), and the Internal
Revenue Code of 1986, as amended (the "Code"), impose certain duties and
restrictions on any person which is an employee benefit plan within the meaning
of Section 3(3) of ERISA subject to ERISA or a plan subject to Section 4975 of
the Code or any person utilizing the assets of such employee benefit plan or
other plan (an "ERISA Plan") and certain persons who perform services for ERISA
Plans. For example, unless exempted, an investment by an ERISA Plan in the
certificates offered hereby may constitute or give rise to a prohibited
transaction under ERISA or Section 4975 of the Code. The United States
Department of Labor (the "DOL") has issued certain such exemptions from these

                                      S-72
<PAGE>   73

prohibitions which might be applicable in connection with an ERISA Plan's
purchase of certain of the certificates offered hereby, including Prohibited
Transaction Class Exemption 83-1 ("PTE 83-1"). In particular, the exemptive
relief provided by PTE 83-1 may be available with respect to the initial
acquisition and holding of certain classes of certificates offered hereby,
provided that the conditions specified in PTE 83-1 are satisfied. See "ERISA
Considerations" in the accompanying prospectus.

     The United States Department of Labor (the "DOL") has issued to Merrill
Lynch, Pierce, Fenner & Smith Incorporated ("Merrill Lynch") an individual
administrative exemption, Prohibited Transaction Exemption 90-29 (55 Fed. Reg.
21459, May 24, 1990), as amended (the "Exemption"), from certain of the
prohibited transaction provisions 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 senior
certificates offered hereby 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 senior certificates offered
hereby are the following:

     -  Merrill Lynch is the sole underwriter or the manager or co-manager of
        the underwriting syndicate for the certificates;

     -  the certificates are rated in one of the three highest generic rating
        categories by Fitch, Moody's Investors Service, Inc., S&P or Duff &
        Phelps Credit Rating Co. at the time of the acquisition of such
        certificates by the ERISA Plan;

     -  the certificates represent a beneficial ownership interest in, among
        other things, obligations that bear interest or are purchased at a
        discount and which are secured by single-family residential, multifamily
        residential or commercial real property (including obligations secured
        by leasehold interests on residential or commercial real property), or
        fractional undivided interests in such obligations;

     -  the certificates are not subordinated to other certificates issued by
        the trust in respect of the mortgage pool;

     -  the ERISA 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 acquisition of the certificates is on terms that are at least as
        favorable to the ERISA Plan as they would be in an arm's length
        transaction with an unrelated third party;

     -  the Trustee is not an affiliate of any member of the "Restricted Group"
        (as defined below); and

     -  the compensation to Merrill Lynch represents not more than reasonable
        compensation for underwriting the certificates, the proceeds to GECMSI
        pursuant to the assignment of the mortgage loans (or interests therein)
        to the Trustee represent not more than the fair market value of such
        mortgage loans (or interests) and the sum of all payments made to and
        retained by GECMSI represents not more than reasonable compensation for
        GECMSI's services under the Agreement and reimbursement of GECMSI's
        reasonable expenses in connection therewith.

                                      S-73
<PAGE>   74

     In addition, if certain additional conditions specified in the Exemption
are satisfied, the Exemption may provide an exemption from the prohibited
transaction provisions of ERISA relating to possible self-dealing transactions
by fiduciaries who have discretionary authority, or render investment advice,
with respect to ERISA Plan assets used to purchase the senior certificates
offered hereby if the fiduciary (or its affiliate) is an obligor on any of the
mortgage loans.

     The Exemption would not be available with respect to ERISA Plans sponsored
by any of the following entities (or any affiliate of any such entity):

     -  GECMSI;

     -  Merrill Lynch;

     -  the Trustee;

     -  any entity that provides insurance or other credit enhancement to the
        trust in respect of the mortgage pool; or

     -  any obligor with respect to mortgage loans included in the mortgage pool
        constituting more than five percent of the aggregate unamortized
        principal balance of the assets in such mortgage loan pool (the
        "Restricted Group").

Before purchasing any certificate offered hereby, 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, and whether the conditions of any such exemption will be
applicable to such certificate.

     The Exemption does not apply to the initial purchase, the holding or the
subsequent resale of the Class M, Class B1 and Class B2 Certificates because
such certificates are subordinate to certain other classes of certificates.
ACCORDINGLY, ERISA PLANS MAY NOT PURCHASE THE CLASS M, CLASS B1 OR CLASS B2
CERTIFICATES, except that any insurance company may purchase such certificates
with assets of its general account if the exemptive relief granted by the DOL
for transactions involving insurance company general accounts in Prohibited
Transaction Exemption 95-60, 60 Fed. Reg. 35925 (July 12, 1995) is available
with respect to such investment. Any insurance company proposing to purchase
such certificates for its general account should consider whether such relief
would be available.

     Any fiduciary of an ERISA Plan considering whether to purchase any
certificate offered hereby should not only consider the applicability of
exemptive relief, but 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
accompanying prospectus.

     A qualified pension plan or other entity that is exempt from federal income
taxation pursuant to Section 501 of the Code (a "Tax-Exempt Investor")
nonetheless will be subject to federal income taxation to the extent that its
income is "unrelated business taxable income" within the meaning of Section 512
of the Code. The residual certificates constitute the residual interest in the
REMIC constituted by the trust, and all "excess inclusions" allocated to the
residual certificates, if held by a Tax-Exempt Investor, will be considered
"unrelated business taxable income" and thus will be subject to federal income
tax. See "Federal Income Tax Consequences -- Federal Income Tax Consequences for
REMIC Certificates -- Taxation of Residual Certificates" in the prospectus.

                                      S-74
<PAGE>   75

     The Agreement will contain certain restrictions on the transferability of
the Class M, Class B1 and Class B2 Certificates. See "Description of the
Certificates -- Book-Entry Certificates" herein. The Agreement provides that the
residual certificates may not be acquired by or transferred to an ERISA Plan.
See "Description of the Certificates -- Restrictions on Transfer of the Residual
Certificates" herein.

LEGAL INVESTMENT MATTERS

     The senior certificates offered hereby and the Class M Certificates will
constitute "mortgage related securities" for purposes of the Secondary Mortgage
Market Enhancement Act of 1984 ("SMMEA") so long as such certificates are rated
in one of the two highest rating categories by at least one nationally
recognized rating agency. As such, such certificates are legal investments for
certain entities to the extent provided in SMMEA. 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 certificates, as certain classes 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 other classes. It should
also be noted that certain states have enacted 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 certificates
constitute legal investments for such investors. See "Legal Investment Matters"
in the accompanying prospectus.

     The Class B1 and Class B2 Certificates will not constitute "mortgage
related securities" under SMMEA. The appropriate characterization of the Class
B1 and Class B2 Certificates under various legal investment restrictions, and
thus the ability of investors subject to these restrictions to purchase Class B1
or Class B2 Certificates, may be subject to significant interpretive
uncertainties. All investors whose investment authority is subject to legal
restrictions should consult their own legal advisors to determine whether, and
to what extent, the Class B1 or Class B2 Certificates will constitute legal
investments for them.

     GECMSI makes no representation as to the proper characterization of the
Class B1 or Class B2 Certificates for legal investment of financial institution
regulatory purposes, or as to the ability of particular investors to purchase
the Class B1 or Class B2 Certificates under applicable legal investment
restrictions. The uncertainties described above (and any unfavorable future
determinations concerning legal investment or financial institution regulatory
characteristics of the Class B1 or Class B2 Certificates) may adversely affect
the liquidity of the Class B1 and Class B2 Certificates.

PLAN OF DISTRIBUTION

     Subject to the terms and conditions set forth in the Underwriting Agreement
between GECMSI and Merrill Lynch, the certificates offered hereby are being
purchased from GECMSI by Merrill Lynch upon issuance. Distribution of the
certificates offered hereby will be made by the underwriter from time to time in
negotiated transactions or otherwise at varying prices to be determined at the
time of sale.

     Proceeds to GECMSI from the sale of the certificates offered hereby will be
approximately 98.287175% of the aggregate initial Class Certificate Principal
Balance of the certificates offered hereby, plus accrued interest thereon from
the Cut-off Date to but excluding the date of initial issuance of the
certificates, but before deducting issuance

                                      S-75
<PAGE>   76

expenses payable by GECMSI. In connection with the purchase and sale of the
certificates offered hereby, the underwriter may be deemed to have received
compensation from GECMSI in the form of underwriting discounts.

     GECMSI has agreed to indemnify the underwriter against, or make
contributions to the underwriter with respect to, certain liabilities, including
liabilities under the Securities Act of 1933, as amended.

     Merrill Lynch has entered into an agreement with GECMSI to purchase the
Class B3, Class B4 and Class B5 Certificates simultaneously with the purchase of
the certificates offered hereby, subject to certain conditions.

CERTIFICATE RATINGS

     It is a condition of issuance of the certificates that the senior
certificates offered hereby other than the Class A4 and Class A14 Certificates
be rated "AAA" by each of Fitch and S&P, that the Class A4 and Class A14
Certificates be rated "AAA" by Fitch and "AAAr" by S&P, and that the Class M,
Class B1 and Class B2 Certificates be rated "AA," "A" and "BBB," respectively,
by Fitch.

     The ratings assigned by Fitch to mortgage pass-through certificates address
the likelihood of the receipt by certificateholders of all distributions to
which such certificateholders are entitled. Fitch's ratings address the
structural and legal aspects associated with the certificates, including the
nature of the underlying mortgage loans. Fitch's ratings on mortgage
pass-through certificates do not represent any assessment of the likelihood or
rate of principal prepayments. The ratings do not address the possibility that
certificateholders might suffer a lower than anticipated yield.

     S&P's ratings on mortgage pass-through certificates address the likelihood
of receipt by certificateholders of payments required under the operative
agreements. S&P's ratings take into consideration the credit quality of the
mortgage pool including any credit support providers, structural and legal
aspects associated with the certificates, and the extent to which the payment
stream of the mortgage pool is adequate to make payment required under the
certificates. S&P's ratings on the certificates do not, however, constitute a
statement regarding the frequency of prepayments on the mortgage loans. S&P's
rating does not address the possibility that investors may suffer a lower than
anticipated yield. The "r" symbol is appended to the rating by S&P of those
certificates that S&P believes may experience high volatility or high
variability in expected returns due to non-credit risks. The absence of the "r"
symbol in the ratings of other certificates offered hereby should not be taken
as an indication that such certificates will exhibit no volatility or
variability in return.

     The ratings of the certificates should be evaluated independently from
similar ratings on other types of securities. A security rating is not a
recommendation to buy, sell or hold securities and may be subject to revision or
withdrawal at any time by the assigning rating agency.

     GECMSI has not requested a rating of the certificates offered hereby by any
rating agency other than Fitch and S&P and GECMSI has not provided information
relating to the certificates offered hereby or the mortgage loans to any rating
agency other than Fitch and S&P. However, there can be no assurance as to
whether any other rating agency will rate the certificates offered hereby or, if
another rating agency rates such certificates, what rating would be assigned to
such certificates by such rating agency. Any such unsolicited rating assigned by
another rating agency to the certificates offered hereby may be lower than the
rating assigned to such certificates by either, or both, of Fitch and S&P.

                                      S-76
<PAGE>   77

LEGAL MATTERS

     Certain legal matters in respect of the certificates will be passed upon
for GECMSI by Cleary, Gottlieb, Steen & Hamilton, New York, New York, and for
the underwriter by Brown & Wood LLP, Washington, D.C.

                                      S-77
<PAGE>   78

               INDEX OF CERTAIN PROSPECTUS SUPPLEMENT DEFINITIONS

<TABLE>
<CAPTION>
DEFINED TERM                        PAGE
- ------------                     ----------
<S>                              <C>
Accrued Certificate Interest...        S-30
Adjustment Amount..............        S-46
Agreement......................        S-22
Allocable Share................        S-38
Available Funds................        S-25
Bankruptcy Coverage Termination
  Date.........................        S-46
Bankruptcy Loss Amount.........        S-46
beneficial owner...............        S-23
BIF............................        S-68
Book-Entry Certificates........        S-23
Certificate Principal
  Balance......................        S-30
Class A3 Percentage............        S-34
Class A3 Prepayment
  Distribution Percentage......        S-35
Class A3 Principal Distribution
  Amount.......................        S-34
Class B Certificates...........        S-38
Class Certificate Principal
  Balance......................        S-26
Class PO Deferred Amount.......        S-44
Class PO Deferred Payment
  Writedown Amount.............        S-30
Class PO Principal Distribution
  Amount.......................        S-36
Class Prepayment Distribution
  Trigger......................        S-38
Code...........................        S-72
Collection Account.............        S-68
Compensating Interest
  Payment......................        S-69
Cooperative Loan...............        S-18
Cross-Over Date................        S-28
Cut-off Date...................        S-15
Debt Service Reduction.........        S-46
Deceased Holder................        S-42
Defaulted Mortgage Loan........        S-69
Deficient Valuation............        S-44
Designated Retail
  Certificates.................        S-39
Discount Mortgage Loan.........        S-32
</TABLE>

<TABLE>
<CAPTION>
DEFINED TERM                        PAGE
- ------------                     ----------
<S>                              <C>
Distribution Date..............        S-25
DOL............................        S-72
ERISA..........................        S-72
ERISA Plan.....................        S-72
Excess Loss....................        S-44
Exemption......................        S-73
FDIC...........................        S-68
Financial Intermediary.........        S-23
Fitch..........................        S-68
Fraud Coverage Termination
  Date.........................        S-45
Fraud Loss.....................        S-44
Fraud Loss Amount..............        S-45
GECMSI.........................        S-15
Group I Final Distribution
  Date.........................        S-35
Group I Senior Certificates....        S-26
Group I Senior Principal
  Distribution Amount..........        S-26
Interest Accrual Period........        S-29
Interest Shortfall.............        S-31
Junior Certificate Writedown
  Amount.......................        S-30
Junior Optimal Principal
  Amount.......................        S-37
Junior Percentage..............        S-37
Junior Prepayment Percentage...        S-37
LIBOR..........................        S-10
LIBOR Certificates.............        S-29
LIBOR Determination Date.......        S-32
Liquidated Mortgage Loan.......        S-43
Living Holder..................        S-39
Loss Allocation Limitation.....        S-46
Merrill Lynch..................        S-73
Modeling Assumptions...........        S-57
Mortgage Loan Group............        S-58
mortgage related securities....        S-75
Net Interest Shortfall.........        S-30
Net Mortgage Rate..............        S-31
NMR............................        S-32
</TABLE>

                                      S-78
<PAGE>   79

<TABLE>
<CAPTION>
DEFINED TERM                        PAGE
- ------------                     ----------
<S>                              <C>
Non-Book-Entry Certificates....        S-25
Non-discount Mortgage Loan.....        S-32
Non-Excess Realized Loss.......        S-44
Non-PO Percentage..............        S-32
noneconomic residual
  interests....................        S-72
Notional Principal Balance.....        S-30
Original Junior Principal
  Balance......................        S-36
Outstanding Mortgage Loan......        S-16
PO Percentage..................        S-32
Pool Scheduled Principal
  Balance......................        S-15
Prepayment Assumption..........        S-57
Prepayment Interest............        S-51
Prepayment Period..............        S-34
Principal Distribution
  Request......................        S-41
PTE 83-1.......................        S-73
Realized Loss..................        S-43
Record Date....................        S-25
Regular Certificates...........        S-71
regular interests..............        S-71
</TABLE>

<TABLE>
<CAPTION>
DEFINED TERM                        PAGE
- ------------                     ----------
<S>                              <C>
residual interests.............        S-71
Restricted Group...............        S-74
Rounding Account...............        S-40
S&P............................        S-67
SAIF...........................        S-68
Scheduled Principal Balance....        S-15
Senior Final Distribution
  Date.........................        S-37
Senior Optimal Principal
  Amount.......................        S-33
Senior Percentage..............        S-35
Senior Prepayment Percentage...        S-35
Senior Prepayment Percentage
  Stepdown Limitation..........        S-35
SMMEA..........................        S-75
Special Hazard Loss............        S-44
Special Hazard Loss Amount.....        S-46
Special Hazard Termination
  Date.........................        S-46
Tax-Exempt Investor............        S-74
Trustee........................        S-22
Withdrawal.....................        S-42
</TABLE>

                                      S-79
<PAGE>   80

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

    NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR
PROSPECTUS. ANY INFORMATION OR REPRESENTATIONS GIVEN OR MADE OUTSIDE OF THIS
PROSPECTUS SUPPLEMENT AND PROSPECTUS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED. THIS PROSPECTUS SUPPLEMENT AND PROSPECTUS DO NOT CONSTITUTE AN OFFER
TO SELL OR THE SOLICITATION OF AN OFFER TO BUY ANY SECURITIES OTHER THAN THE
SECURITIES DESCRIBED IN THIS PROSPECTUS SUPPLEMENT OR AN OFFER TO SELL OR A
SOLICITATION OF AN OFFER TO BUY IN ANY CIRCUMSTANCES IN WHICH SUCH OFFER OR
SOLICITATION IS UNLAWFUL. THE INFORMATION CONTAINED IN THE PROSPECTUS SUPPLEMENT
AND PROSPECTUS IS CORRECT ONLY AS OF THE DATE RELATING TO SUCH INFORMATION, AND
DELIVERY OF THIS PROSPECTUS SUPPLEMENT OR PROSPECTUS, OR ANY SALE MADE
THEREUNDER, SUBSEQUENT TO THE DATE OF THIS PROSPECTUS SUPPLEMENT SHALL NOT,
UNDER ANY CIRCUMSTANCES, CREATE AN IMPLICATION THAT THE INFORMATION IS CORRECT
AS OF THAT SUBSEQUENT DATE.
                           -------------------------

<TABLE>
<CAPTION>
                                                PAGE
                                                -----
<S>                                             <C>
PROSPECTUS SUPPLEMENT
Summary of Terms..............................    S-3
Risk Factors..................................    S-9
Index of Definitions..........................   S-15
Description of the Mortgage Pool and the
  Mortgaged Properties........................   S-15
Description of the Certificates...............   S-22
Yield and Weighted Average Life
  Considerations..............................   S-50
GE Capital Mortgage Services, Inc.............   S-65
Delinquency and Foreclosure Experience of
  GECMSI......................................   S-65
Use of Proceeds...............................   S-67
The Pooling and Servicing Agreement...........   S-67
Federal Income Tax Consequences...............   S-71
ERISA Considerations..........................   S-72
Legal Investment Matters......................   S-75
Plan of Distribution..........................   S-75
Certificate Ratings...........................   S-76
Legal Matters.................................   S-77
Index of Certain Prospectus Supplement
  Definitions.................................   S-78
PROSPECTUS
Description of the Certificates...............      1
The Trusts....................................      9
Credit Enhancement............................     19
Yield, Maturity and Weighted Average Life
  Considerations..............................     27
Servicing of the Mortgage Loans...............     31
The Pooling and Servicing Agreement...........     44
GE Capital Mortgage Services, Inc.............     56
GE Capital Mortgage Funding Corporation.......     57
Where You Can Find More Information About
  GE Capital Mortgage Services, Inc. and GE
  Capital Mortgage Funding Corporation........     58
The Guarantor.................................     59
Certain Legal Aspects of the Mortgage Loans...     59
Legal Investment Matters......................     68
ERISA Considerations..........................     70
Federal Income Tax Consequences...............     71
Plan of Distribution..........................     89
Use of Proceeds...............................     90
Legal Matters.................................     90
Financial Information.........................     90
Index of Certain Prospectus Definitions.......     91
</TABLE>

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

    UNTIL SEPTEMBER 20, 1999, ALL DEALERS THAT EFFECT TRANSACTIONS IN THESE
SECURITIES, WHETHER OR NOT PARTICIPATING IN THIS OFFERING, 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.
- ------------------------------------------------------------
- ------------------------------------------------------------
- ------------------------------------------------------------
- ------------------------------------------------------------

                              GE CAPITAL MORTGAGE
                          SERVICES, INC. 1999-13 TRUST
                                     ISSUER

                              GE CAPITAL MORTGAGE
                                 SERVICES, INC.
                             DEPOSITOR AND SERVICER
                                  $493,567,573

                                 (APPROXIMATE)
            REMIC MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 1999-13
                           -------------------------

                             PROSPECTUS SUPPLEMENT
                           -------------------------
                              MERRILL LYNCH & CO.
                               ------------------

                                 JUNE 22, 1999

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


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