Document:

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                                                                   Exhibit 10.30

                           First Union National Bank
                            One First Union Center
                           301 South College Street
                     Charlotte, North Carolina 28288-0610

NovaStar Financial, Inc.
NovaStar Capital, Inc.
NovaStar Mortgage, Inc.
1901 West 47/th/ Place, Suite 105
Westwood, Kansas 66205

                                                  As of July 28, 2000

Gentlemen

     Reference is made to that certain Master Repurchase Agreement dated as of
February 12, 1999 (together with the Addendum to the Master Repurchase Agreement
dated as of February 12, 1999) among NovaStar Financial, Inc ("NFI"), NovaStar
Capital, Inc. ("NCI") and NovaStar Mortgage, Inc. ("NSM" and together with NFI
and NCI, each, individually and jointly and severally, "Seller") and First Union
National Bank ("Buyer") (as amended, modified, restated or supplemented from
time to time, the "Agreement").

     Seller has requested that Buyer amend the Agreement as hereinafter set
forth and Buyer is willing to do so on the terms and conditions hereinafter set
forth.

     Seller and Buyer agree that the following definitions set forth in Section
2 of the Agreement are hereby amended in their entirety as follows:

     "Eligible Mortgage Loans" shall mean (a) Mortgage Loans with respect to
which each of the representations and warranties set out in Exhibit A hereto is
                                                            ---------
accurate and complete as of the date of the related confirmation and on each day
thereafter (and the Seller by including any such Mortgage Loan in any such
transaction shall be deemed to so represent and warrant to Buyer at and as of
the date of such Transaction) and (b) solely for the period commencing on July
28, 2000 and ending September 30, 2000, the specific Mortgage Loans listed on
Exhibit A-1 hereto up to an aggregate sum of $3,200,000.
-----------

     "Term" shall mean the period commencing on February 12, 1999 and ending on
July 27, 2001.

     Seller represents and warrants that (a) expect as specifically set forth
herein, the Agreement, and all other documents, instruments and agreements
executed and/or delivered in connection therewith, shall remain in full force
and effect, and are hereby ratified and confirmed, (b) this letter and the
Agreement, as amended hereby, constitute legal, valid and binding

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obligations of Seller and are enforceable against Seller in accordance with
their respective terms, (c) no Event of Default or Default has occurred and is
continuing or would exist after giving effect to this letter and (d) Seller has
no defense, counterclaim or offset with respect to the Agreement.

     The execution, delivery and effectiveness of this letter shall not operate
as a waiver of any right, power or remedy of Buyer, nor constitute a waiver of
any provision of the Agreement, or any other documents, instruments or
agreements executed and/or delivered thereunder or in connection therewith.

     This letter may be executed by the parties hereto in one or more
counterparts, each of which shall be deemed an original and all of which taken
together shall constitute one and the same agreement. Any signature delivered by
a party via telecopier shall be deemed an original signature hereto.

                 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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     If you are in agreement with the foregoing, kindly execute this letter
agreement ("Letter Agreement") in the space provided below and return same to
the undersigned. This Letter Agreement shall become effective upon Buyer's
receipt of four (4) copies of this Letter Agreement executed by each of the
undersigned.

                                        Very truly yours,

                                        FIRST UNION NATIONAL BANK

                                        By: /s/ [SIGNATURE ILLEGIBLE]^^
                                           --------------------------------
                                           Name: [ILLEGIBLE]
                                           Title Vice President

CONSENTED AND AGREED TO:

NOVASTAR FINANCIAL, INC., as a Seller

By: /s/ Rodney E. Schwatken
   ----------------------------------
Name: Rodney E. Schwatken
Title:__ Treasurer

NOVASTAR MORTGAGE, INC., as a Seller

By: /s/ Rodney E. Schwatken
   ----------------------------------
Name: Rodney E. Schwatken
Title:__ Treasurer

NOVASTAR CAPITAL, INC., as a Seller

By: /s/ Rodney E. Schwatken
   ----------------------------------
Name: Rodney E. Schwatken
Title:__ Treasurer

                      [SIGNATURES CONTINUED ON NEXT PAGE]

                                      -3-
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NOVASTAR MORTGAGE, INC., as a Servicer

By: /s/ Rodney E. Schwatken
   ----------------------------------
Name: Rodney E. Schwatken
Title: Treasurer

NFI HOLDING CORPORATION, as Guarantor

By: /s/ Rodney E. Schwatken
   ----------------------------------
Name: Rodney E. Schwatken
Title: Treasurer

                                      -4-<PAGE>

                                                                     EXHIBIT 4.2
                                                                     -----------
                              PECO Energy Company
                           Deferred Compensation and
                       Supplemental Pension Benefit Plan
                      (Effective Date: November 1, 1981)
                 (As Amended and Restated [__________], 2000)

     PECO Energy Company ("PECO" or the "Company") originally established the
PECO Energy Company Deferred Compensation and Supplemental Pension Benefit Plan
(the "Deferred Compensation Plan" or the "Plan").  The outstanding shares of
PECO were subsequently exchanged with shares of Exelon Corporation ("Exelon")
causing Exelon to become PECO's parent (the "Share Exchange").  Immediately
thereafter, Unicom Corporation merged with and into Exelon (the "Merger").  In
connection with the Share Exchange and Merger, Exelon assumed sponsorship of the
Plan.

     The purposes of this plan are to permit the total pension of executive
employees of PECO and its Subsidiaries (as defined in Section 2) to be
determined on a basis that is no less favorable than for all other employees of
PECO, to consolidate prior deferred compensation agreements with certain of
PECO's executive employees into one document, to offset the impact of deferrals
under the PECO Management Incentive Compensation Plan on the pensions of
participating employees, and to provide uniform rules and regulations of plan
administration.

          1.  Administration. This Deferred Compensation Plan shall be
              --------------
administered by the Compensation Committee (the "Committee") of the Board of
Directors of PECO (the "Board"). The Committee shall interpret the Deferred
Compensation Plan; make factual determinations; establish such rules and
regulations of plan administration that it deems

                                      -1-
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appropriate; and appoint an administrator to assist the Committee in its
responsibilities. The Committee's decisions with respect to the construction,
administration and interpretation of the Plan shall be conclusive and binding,
unless otherwise determined by the Board. The cost of the plan administration
shall be paid by PECO, and shall not be charged against the deferred accounts of
Plan participants.

          2.  Eligibility. Eligibility under the Deferred Compensation Plan is
              -----------
restricted to key management employees of PECO whose eligibility is determined
by the Committee. Notwithstanding the foregoing, (i) a key management employee
of a Subsidiary who is designated by the Committee shall also be eligible to
make deferrals under Sections 3 through 8, and (ii) any employee of PECO or a
Subsidiary who contributes an amount to the Deferred Compensation Plan through
PECO's Management Incentive Compensation Plan shall be automatically eligible to
participate in the Deferred Compensation Plan to the extent of such
contribution. "Subsidiary" shall mean a corporation in which PECO owns, directly
or indirectly, at least 50% of the of the combined voting power of all classes
of stock entitled to vote.

          3.  Deferrals.
              ---------

              (a)  Subject to such rules and procedures as the Committee deems
appropriate, each eligible employee may elect in writing (i) effective November
1, 1981 (the "Effective Date"), to receive a portion of his or her future cash
compensation as deferred compensation, provided each such election is made prior
to the period with respect to which the compensation is earned or otherwise
payable, (ii) effective June 1, 1988 to receive all or a portion of his or her
future awards under the PECO Management Incentive Compensation Plan as deferred
compensation, provided each such election is made prior to the end of the
calendar

                                      -2-
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year with respect to which the award is calculated, (iii) effective November 25,
1996 to receive all or a portion (in increments of 1%) of the lump sum payment
pursuant to Paragraph 9(b)(1), below, as deferred compensation, provided such
election is made prior to the calendar year in which such lump sum is scheduled
to be paid and at least ninety (90) days prior to the date such lump sum is
scheduled to be paid, and (iv) effective January 1, 2000 to receive as deferred
compensation all or a portion of his or her future cash awards under any short
term or long term incentive compensation plan sponsored or maintained by PECO or
a Subsidiary, provided that each such election is made prior to the end of the
last calendar year with respect to which the award is calculated.
Notwithstanding the proviso to (iii) of the preceding sentence, a participant
who retires from employment with PECO during 1998 under the 1998 Workforce
Reduction Program may, prior to separation from service with PECO, make a one-
time irrevocable election in writing to receive as deferred compensation all or
a portion (in increments of 1%) of the lump sum payment pursuant to Paragraph
9(b)(1) below.

          Deferred amounts shall be credited to a deferral account in the
participant's name ("Deferral Account") for later distribution. Each
participant's Deferral Account shall be a bookkeeping entry only, and Exelon
shall not be required to fund the Deferral Account. Any assets that may be held
by Exelon to fund a Deferral Account shall at all times remain unrestricted
assets of Exelon in its corporate capacity and not as fiduciary, and shall be
subject to the claims of Exelon's general creditors. Pending distribution, after
the Effective Date each participant's Deferral Account shall be credited with
earnings or interest as provide in Paragraph 3(b).

                                      -3-
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          (b)  (1)  For purposes of measuring the earnings or losses credited to
his Deferral Account, the participant may select, from among the investment
vehicles available from time to time under the PECO Energy Company Employee
Savings Plan (the "Savings Plan"), the investment media in which all or part of
his Deferral Account shall be deemed to be invested.

               (2)  The participant shall make an investment designation in the
form and manner prescribed by the Committee or its designee, which shall remain
effective until another valid designation has been made by the participant as
herein provided. The participant may amend his investment designation at such
times and in such manner as prescribed by the Committee or its designee. A
timely change to the participant's investment designation shall become effective
as soon as administratively practicable.

               (3)  The investment media deemed to be made available to the
participant, and any limitation on the maximum or minimum percentages of the
participant's Deferral Account that may be deemed to be invested in any
particular medium, shall be the same as available or in effect from time-to-time
under the Savings Plan.

               (4)  Except as provided below, the participant's Deferral Account
shall be deemed to be invested in accordance with his investment designations,
and the Deferral Account shall be credited with earnings (or losses) as if
invested as directed by the participant. If -

                                      -4-
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                         (i)  the participant does not furnish complete
          investment instructions, or

                         (ii) the investment instructions from the participant
          are unclear,

     then the Deferral Account shall be credited with interest compounded and
     adjusted monthly, at a rate equal to the prime commercial lending rate of
     The Chase Manhattan Bank, N.A. in effect at the opening of business on the
     15th day of each month (or if such day is a non-business day, on the first
     business day thereafter) plus  1/2 of 1%.  The Deferral Accounts maintained
     pursuant to this Plan are for bookkeeping purposes only and Exelon is under
     no obligation to invest such amounts.

          PECO shall provide a statement to the participant not less frequently
     than annually showing such information as is appropriate, including the
     aggregate amount in his Deferral Account, as of a reasonably current date.

          4.  Prior Deferrals. The status of prior deferrals under individual
              ---------------
contracts of deferred compensation shall be determined under the respective
individual contracts until the Effective Date. After the Effective Date, in
consideration of the supplemental pension benefit under Paragraph 9 below, the
participant shall surrender any and all rights in amounts previously credited
for additional pension benefits under individual contracts and the accumulated
interest thereon (excluding amounts allocable for preretirement contingent
annuitant option coverage). The balance of the employee's deferred compensation
(including amounts allocable for preretirement contingent annuitant option
coverage with interest thereon) shall be credited to his

                                      -5-
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or her Deferral Account. Those employees with prior deferrals who have retired
or otherwise separated from service prior to the Effective Date shall not
participate in the Deferred Compensation Plan, and their rights shall be
determined under the respective individual contracts.

          5.  Distributions. If the participant's employment with PECO or a
              -------------
Subsidiary is terminated for retirement, the amount standing to a participant's
Deferral Account shall be distributed to the participant commencing after the
participant's separation from service when the participant's accrued benefit
begins to be paid under PECO's Service Annuity Plan. Distributions shall be paid
monthly over 15 consecutive twelve-month periods.

          Each payment shall be determined by multiplying the balance remaining
to the credit of the Deferral Account at the beginning of such twelve-month
period (including earnings or interest credited under Paragraph 3(b)) by a
fraction, the numerator of which is "1" and the denominator of which is the
number of twelve-month periods (including the current period) for which payments
are yet to be made.  If application of the foregoing would result in a payment
for any twelve-month period of less than $12,000 the amount payable for such
period shall be at the rate of $12,000 per twelve-month period, until the
Deferral Account is exhausted.  Any unpaid balance in the Deferral Account shall
be credited with earnings or interest as provided in Paragraph 3(b).  If the
participant is ineligible to receive benefits under the Service Annuity Plan,
benefits will begin to be paid on or about the first business day of the month
following the later of the month the participant reaches age 65 or actually
retires.

          In any calendar year prior to the calendar year in which payments are
scheduled to begin and at least ninety (90) days prior to the date such payments
are scheduled to begin, a

                                      -6-
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participant may elect to receive the amounts payable hereunder in such other
manner as is acceptable to the Committee, provided that no such election shall
accelerate the commencement of benefits, and provided further that any such
election to receive periodic installments determined by application of a formula
based, in part, on investment return assumptions may subsequently be amended
irrevocably to provide for installments thereafter in an amount equal to the
lesser of (i) the initial periodic installment received by the participant or
(ii) the most recent periodic installment received by the participant.
Notwithstanding the foregoing, however, a participant who retires from
employment with PECO under any early retirement incentive arrangement or non-
recurring reduction in force (including, but not limited to, the 1990 Special
Retirement and Service Completion Plan, the 1993 Nuclear Voluntary Retirement
Plan, the 1993 Nuclear Voluntary Separation Plan, the 1993 Nuclear Involuntary
Separation Plan, the 1994 Voluntary Retirement Incentive Plan ("1994 VRIP") the
1994 Voluntary Separation Incentive Plan ("1994 VSIP"), and the 1998 Workforce
Reduction Program) may, prior to separation from service with PECO, make a one-
time irrevocable election to receive a lump sum distribution of his or her
account (or, in the case of a retirement under the 1994 VRIP or VSIP, a
distribution paid over a period of three (3) years or in such other manner as
may be acceptable to the Committee) in accordance with the terms of such
arrangement or reduction in force and, if such election is approved by PECO,
receive such a distribution upon his or her retirement.

          If at any time a participant's employment with PECO and all
Subsidiaries is terminated (other than for retirement), or the participant's
employer ceases to be a Subsidiary, unless otherwise directed by the Committee,
he or she shall receive his or her account balance (with accrued earnings or
interest) in a lump sum upon termination of employment with PECO

                                      -7-
<PAGE>

and all Subsidiaries, or cessation of his or her employer's Subsidiary status,
determined as of the date of separation from service or cessation of Subsidiary
status.

          Notwithstanding the foregoing, a participant whose employment with
PECO and all Subsidiaries was terminated for retirement and who is receiving
installment payments of his or her Deferral Account ("a retired participant"),
or the beneficiary of a deceased retired participant, may elect to receive 90%
of the balance of his or her Deferral Account in a lump sum.  The remaining 10%
of the balance of his or her Deferral Account shall be forfeited.

          6.  Death Benefits.  Each participant shall designate a beneficiary or
              --------------
beneficiaries to receive any payments provided under Paragraphs 3 or 4 after the
participant's death.  The beneficiaries, and any priority or allocation between
them, shall be designated in the manner specified by the Committee.  If a
participant dies before the entire balance in his or her Deferral Account has
been paid out, the remaining balance shall be paid in the same form and number
of installments as would have been the case had the participant lived (and
terminated his or her employment on the date of his or her death, if he or she
died while in the employment of PECO or a Subsidiary).  If the participant is
not survived by a designated beneficiary, the participant's beneficiary shall be
the participant's spouse, if living, or otherwise, the participant's estate.  If
a beneficiary survives the participant but dies before the entire balance
payable to him or her has been distributed, any remaining balance shall be paid
to the beneficiary's estate.  In the absence of contrary proof, the participant
shall be deemed to have survived any designated beneficiary.  A participant may
change his or her beneficiary designation under this Paragraph at any time until
his or her death by filing a written beneficiary designation with PECO, in the
manner specified by the Committee.

                                      -8-
<PAGE>

          7.  Financial Hardship. The Committee may, in its discretion, direct
              ------------------
that a be paid an amount in cash (not in excess of the balance of his or her
Deferral Account) sufficient to meet a financial hardship. Financial hardship
shall mean (a) medical care for the participant, a member of his or her family,
or any other person for whom the participant wishes or is legally required to
provide such care; (b) education costs for a participant, spouse or child; (c)
acquiring, constructing or renovating the participant's principal residence; or
(d) other similar substantial and nonrecurring expenses for the welfare of the
participant and his or her dependents, as the Committee shall determine in its
sole discretion. To preserve the tax benefits of the deferral program, the
Committee may require evidence of financial hardship.

          8.  No Assignment or Alienation of Benefits. Except as hereinafter
              ---------------------------------------
provided with respect to marital disputes, a participant's Deferral Account may
not be voluntarily or involuntarily assigned or alienated. In cases of marital
dispute, PECO will observe the terms of the Plan unless and until ordered to do
otherwise by a state or Federal court. As a condition of participation, a
participant agrees to hold PECO harmless from any claim that arises out of
PECO's obeying the final order of any state or Federal court, whether such order
effects a judgment of such court or is issued to enforce a judgment or order of
another court.

          9.  Supplemental Pension Benefit.
              ----------------------------

              (a)  PECO will supplement a participant's monthly pension or
preretirement death benefit payable under the Service Annuity Plan by the amount
which is the difference, if any, between such pension or preretirement death
benefit and the monthly pension or preretirement death benefit which would have
been payable under the Service Annuity Plan as if: (i) the provisions of that
Plan were administered without regard to the maximum benefit

                                      -9-
<PAGE>

limitations or the maximum compensation limitations imposed under the Internal
Revenue Code of 1986, as amended; (ii) for purposes of calculating the
participant's benefit under Section 3.1(a) (the "2% accrued" formula), the
participant's salary includes in the year payable (whether or not deferred) the
amount of any award under PECO's Management Incentive Compensation Plan or the
prior Incentive Compensation Plan; (iii) for purposes of calculating the
participant's benefit under Section 3.1(b) (the "minimum" formula), the
participant's annual base salary includes the amount of any award under PECO's
Management Incentive Compensation Plan, whether paid currently or deferred, and
in either case imputed ratably over the months worked by the participant in the
year earned; and (iv) for purposes of both benefit formulas under the Service
Annuity Plan, the participant's salary had not been reduced (whether before or
after the Effective Date) in connection with a deferral of cash compensation. In
addition, for any participant whose compensation is established by the Board,
such supplemental benefit will also reflect the following adjustment: for
purposes of calculating the participant's benefit under Section 3.1(b) (the
"minimum" formula), the participant's annual base salary shall include the
amount of any award under PECO's prior Incentive Compensation Plan, whether paid
currently or deferred, and in either case imputed ratably over the months worked
by the participant in the year earned. Except as otherwise determined by the
Committee, or as otherwise elected by the participant under this Paragraph,
supplemental pension and death benefits will be in the same form and paid to the
employee (or on his or her behalf, to his or her beneficiaries) in the same
manner as payment of retirement and death benefits under the Service Annuity
Plan. This supplement shall also reflect to the appropriate extent any post-
retirement benefit increases with respect to benefits under the Service Annuity
Plan.

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          (b)  (1)  In any calendar year before the year of retirement but in no
event less than ninety days prior to retirement, a participant, while employed
by PECO, may elect to receive the present value of all or a portion (in
increments of 25%) of the supplemental retirement benefit payable to the
participant under Paragraph 9(a) in a lump sum at retirement; provided, however,
that no such election shall accelerate the commencement of benefits.
Notwithstanding the foregoing, however, a participant who retires from
employment with PECO under any early retirement incentive arrangement or non-
recurring reduction in force (including, but not limited to, the 1990 Special
Retirement and Service Completion Plan, the 1993 Nuclear Voluntary Retirement
Incentive Plan, the 1993 Nuclear Voluntary Separation Plan, the 1993 Nuclear
Involuntary Separation Plan, the 1994 Voluntary Retirement Incentive Plan, the
1994 Voluntary Separation Incentive Plan, and the 1998 Workforce Reduction
Program) may, prior to separation from service with PECO, make a one-time
irrevocable election to receive a lump sum distribution of the present value of
all or a portion of the supplemental retirement benefit payable to the
participant under Paragraph 9(a) in accordance with the terms of such
arrangement or reduction in force and, if such election is approved by PECO,
receive such a distribution upon his or her retirement.

               (2)  The present value of amounts payable in a lump sum pursuant
to this Paragraph 9(b) will be actuarially determined by discounting the
expected stream of annuity payments (based upon the life expectancy of the
participant and, if applicable, the life expectancy of the participant's
beneficiary as provided under the Contingent Annuity Option of the PECO Service
Annuity Plan, determined as of the date of payment under the mortality table
used in the most recent actuarial analysis of the

                                      -11-
<PAGE>

PECO Service Annuity Plan) at a rate equivalent to the Pension Benefit Guaranty
Corporation (PBGC) Immediate Annuity Rate in effect on January 1 of the year of
retirement; provided, however, that a lump sum payable pursuant to a lump sum
election made prior to June 1, 1993 (even if such election was later modified to
apply to a lesser portion of the amount payable) shall be valued using the PBGC
Immediate Annuity Rate in effect during the month in which the election is made,
if the use of such rate would result in a larger lump sum payment. Such
calculation shall reflect the Contingent Annuity Option benefit under the PECO
Service Annuity Plan if the participant otherwise satisfies the conditions for
that benefit, but shall not reflect any possible post-retirement benefit
increases; provided, however, that, if the participant's Contingent Annuity
Option election under the PECO Service Annuity Plan is not irrevocable at the
time the lump sum payment is made hereunder, the participant will receive an
initial lump sum payment reflecting the Contingent Annuity Option resulting in
the smallest lump sum payment from the Deferred Compensation Plan and, at age 65
(or at the participant's death, if earlier), a payment will be made to the
participant (or his or her beneficiary) equal to the balance due the participant
(which shall be the present value of the difference between the value of the
total pension payable to the participant or beneficiary at such time over the
sum of the value of benefits payable to the participant or beneficiary under the
Service Annuity Plan and the lump sum previously paid, taking into account the
Contingent Annuity Option then in effect, the Contingent Annuity Option in
effect between retirement and age 65, and increases in benefit payable under the
Service Annuity Plan due to adjustment of Internal Revenue Code limitations, and
reflecting the interest rate used to calculate the prior lump sum). The specific
calculation methodology

                                      -12-
<PAGE>

and manner of payment, which will be made in a manner acceptable to the
Committee, will be applied in a uniform, non-discriminatory fashion. An election
made pursuant to Paragraph 9(b)(1), once made, shall be irrevocable; provided,
however, that a participant who made an election prior to June 1, 1993 to
receive the entire supplemental retirement benefit payable to the participant
hereunder in a lump sum may, while employed by PECO, make one subsequent
election on or after June 1, 1993 to receive less than the full benefit in a
lump sum, subject to the timing limitations described in Paragraph 9(b)(1).

              (c)  (1)  A participant may elect to have supplemental death
benefits under Paragraph 9(a) paid to such beneficiary or beneficiaries as the
participant may designate in writing, in the manner specified by the Committee.
A change in beneficiary designation may be made at any time until the
participant's death, notwithstanding that the form and amount of the benefit may
be fixed upon the participant's termination of employment with PECO or other
inter vivos determining event. In the absence of a written beneficiary
designation, death benefits will be paid to the beneficiary or beneficiaries
entitled to the participant's survivor and death benefits under the Service
Annuity Plan.

                   (2)  Should a participant who has made a lump sum election
as described in Paragraph 9(b)(1) prior to June 1, 1993 die between the time
such election is made and the date payments are scheduled to begin, the present
value of supplemental death benefits payable to the participant's beneficiary
under Paragraph 9(a) shall be paid in a lump sum to the participant's
beneficiary as soon as administratively practicable following the participant's
death; provided, however, that the participant has not made a

                                      -13-
<PAGE>

contrary election pursuant to the following sentence. In accordance with
procedures prescribed by the Committee, a participant (including a participant
described in the preceding sentence), while employed by PECO, may elect, or
revoke or change a prior election, to have the present value of all or a portion
of the supplemental death benefits payable to the participant's beneficiary
under Paragraph 9(a) paid to the beneficiary in a lump sum as soon as
administratively practicable following the participant's death; provided,
however, that such election, or revocation or change, will not be effective
unless made in any calendar year prior to the year in which the participant dies
and at least ninety (90) days prior to the date of such participant's death.

               (3)  The present value of amounts payable in a lump sum pursuant
to Paragraph 9(c)(2) will be actuarially determined by discounting the expected
stream of annuity payments (based upon the beneficiary's life expectancy
determined as of the date of payment under the mortality table used in the most
recent actuarial analysis of the PECO Service Annuity Plan) at a rate equivalent
to the Pension Benefit Guaranty Corporation (PBGC) Immediate Annuity Rate in
effect on January 1 of the year of the participant's death; provided, however,
that a lump sum payable to the beneficiary of a participant who made a lump sum
election under this Paragraph 9 prior to June 1, 1993 (even if such election was
later modified, or revoked and reinstated, with respect to the participant's
beneficiary) shall be valued using the PBGC Immediate Annuity Rate in effect
during the month such election was made, if the use of such rate would result in
a larger lump sum payment.

                                      -14-
<PAGE>

          10.  Participation in Management Group Deferred Compensation Plan.  A
               ------------------------------------------------------------
participant in PECO's Management Group Deferred Compensation Plan who becomes
eligible to participate in the Deferred Compensation Plan shall cease to
participate in the Management Group Deferred Compensation Plan, and all benefits
payable to the participant with respect to either plan shall be provided under
the Deferred Compensation Plan.  The participant shall be credited with a
Deferral Account under the Deferred Compensation Plan equal to the value of his
or her Deferral Account under the Management Group Deferred Compensation Plan,
and the participant's supplemental pension benefit (if any) shall be determined
as though the employee had participated in the Deferred Compensation Plan during
the period he or she was a participant in the Management Group Deferred
Compensation Plan.  The Committee shall establish such rules and regulations
with respect to transferred participants as it deems appropriate to assure that
any participant is not disadvantaged by the transfer.

          11.  Amendment or Discontinuance.  The Deferred Compensation Plan may
               ---------------------------
be altered, amended, suspended, or terminated at any time by the Board prior to
the date of Merger. Effective as of the date of Merger, the Compensation
Committee of Exelon shall have the exclusive authority to alter, amend, suspend,
or terminate the Plan at any time. Provided that no such alteration, amendment,
suspension, or termination shall result in the distribution of amounts credited
to the Deferral Accounts of all participants in any manner than is otherwise
provided in this Plan, nor shall such action reduce the availability of amounts
previously deferred. The rules relating to distribution may be generally altered
or specifically waived by the Administrator in his sole discretion, but no such
action shall reduce the availability of amounts previously deferred unless it is
necessary to do so to preserve the tax deferral on amounts deferred.

                                      -15-
<PAGE>

          12.  No Right to Continued Employment. The Deferred Compensation Plan
               --------------------------------
shall not confer upon any person any right to be continued in the employment of
PECO.

          13.  Governing Law. The Deferred Compensation Plan shall be governed
               -------------
by the law of the Commonwealth of Pennsylvania.

                                      -16-
<PAGE>

                                  APPENDIX A

          WHEREAS, Edward G. Bauer, Jr. (Bauer) and William F. Thompson
(Thompson) were each awarded supplemental pension credits by Board resolution to
reflect prior service;

          WHEREAS, the Company has been advised that such supplemental pension
benefits cannot be paid under the Service Annuity Plan, but may be paid under
the Company's Deferred Compensation and Supplemental Pension Benefit Plan.

          NOW, THEREFORE, be it resolved that the Company shall supplement the
monthly pension or preretirement death benefit payable under the Service Annuity
Plan to Bauer and Thompson or their beneficiaries as follows.  The amount of the
supplement payable to each shall be the difference, if any, between such pension
or preretirement death benefit and the monthly pension or preretirement death
benefit which would have been payable to him under the Service Annuity Plan if,
in the case of Bauer seven additional years, and in the case of Thompson, six
additional years, of past service credits had been credited thereunder and were
used to calculate his benefits.  This supplement shall be paid under the
Company's Deferred Compensation and Supplemental Pension Benefit Plan (the
"Deferred Compensation Plan"), and shall also reflect to the appropriate extent
any post-retirement benefit increases granted with respect to benefits under the
Service Annuity Plan.  Supplemental pension and death benefits will be paid in
the same form to Bauer and Thompson (or on their behalf, to their beneficiaries)
in the same manner as payment of retirement and death benefits under the Service
Annuity Plan, except the Committee which administers the Deferred Compensation
Plan may, in its sole discretion, accelerate the payment of benefits to a
beneficiary.

                                      A-1
<PAGE>

                                  APPENDIX C

          WHEREAS, the Company has committed to grant Corbin A. McNeill, Jr.
supplemental service credit for purposes of determining his pension amount as
part of the consideration for his accepting employment with the Company, and

          WHEREAS, the Company desires that the benefit resulting from such
service credit be paid under the Company's Deferred Compensation and
Supplemental Pension Benefit Plan (the "Deferred Compensation Plan").

          NOW, THEREFORE, be it resolved, that the Deferred Compensation Plan is
hereby amended with respect to Mr. McNeill to provide the following:

          1.  If Mr. McNeill's employment with the Company terminates after he
has nonforfeitable rights to a pension payable under the Service Annuity Plan,
the Company will supplement Mr. McNeill's pension or, in the case of a pre-
retirement death benefit, Mr. McNeill's beneficiary's pension, by the additional
amount which would be payable under the Service Annuity Plan if Mr. McNeill's
service for purposes of calculating benefits is increased by twenty additional
years.

          2.  Payments authorized under this Resolution shall be in the form and
manner provided under Paragraph 9 of the Deferred Compensation Plan, including
any post-retirement benefit increases and settlement options otherwise
applicable to payments thereunder.

          3.  In all other respects, the Deferred Compensation Plan shall remain
in full force and effect as to Mr. McNeill.

                                      C-1
<PAGE>

                                  APPENDIX D

          WHEREAS, the Company is committed to grant Joseph A. Carter and James
W. Durham supplemental service credit for purposes of determining each of their
pension amount as part of the consideration for each of their accepting
employment with the Company, and

          WHEREAS, the Company desires that the benefits resulting from such
service credit be paid under the Company's Deferred Compensation and
Supplemental Pension Benefit Plan (the "Deferred Compensation Plan").

          NOW, THEREFORE, be it resolved, that the Deferred Compensation Plan is
hereby amended with respect to Mr. Carter and Mr. Durham to provide the
following:

          1.  If the employment of Mr. Carter or Mr. Durham with the Company
terminates after he has nonforfeitable rights to a pension payable under the
Service Annuity Plan, the Company will supplement the individual's pension or,
in the case of the pre-retirement death benefit, the individual's beneficiary
pension, by the additional amount which would be payable under the Service
Annuity Plan if the individual's service for purposes of calculating benefits
were supplemented by an additional year of service for each completed year of
service, to a maximum of 10 additional years of service.

          2.  Payments authorized under this resolution shall be in the form and
manner provided under Paragraph 9 of the Deferred Compensation Plan, including
any post-retirement benefit increases and settlement options otherwise
applicable to payments thereunder.

          3.  In all other respects, the Deferred Compensation Plan shall remain
in full force and effect as to Mr. Carter and Mr. Durham.

                                      D-1
<PAGE>

                                  APPENDIX E

          WHEREAS, the Company is committed to grant William J. Kaschub and
Gwendolyn S. King supplemental service credit for purposes of determining each
of their pension amounts as part of the consideration for each of their
accepting employment with the Company, and

          WHEREAS, the Company desires that the benefits resulting from such
service credit be paid under the Company's Deferred Compensation and
Supplemental Pension Benefit Plan (the "Deferred Compensation Plan").

          NOW, THEREFORE, be it resolved, that the Deferred Compensation Plan is
hereby amended with respect to Mr. Kaschub and Ms. King to provide the
following:

          1.  If the employment of Mr. Kaschub or Ms. King with the Company
terminates after the individual has nonforfeitable rights to a pension payable
under the Service Annuity Plan, the Company will supplement the individual's
pension or, in the case of the pre-retirement death benefit, the pension of the
individual's beneficiary, by the additional amount which would be payable under
the Service Annuity Plan if the individual's service for purposes of calculating
benefits were supplemented by an additional year of service for each completed
year of service, to a maximum of 10 additional years of service.

          2.  Payments authorized under this resolution shall be in the form and
manner provided under Paragraph 9 of the Deferred Compensation Plan, including
any post-retirement benefit increases and settlement options otherwise
applicable to payments thereunder.

                                      E-1
<PAGE>

          3.  In all other respects, the Deferred Compensation Plan shall remain
in full force and effect as to Mr. Kaschub and Ms. King.

                                      E-2
<PAGE>

                                  APPENDIX F

          WHEREAS, the Company has committed to grant William L. Bardeen
supplemental service credit for purposes of determining his pension amount as
part of the consideration for his accepting employment with the Company, and

          WHEREAS, the Company desires that the benefit resulting from such
service credit be paid under the Company's Deferred Compensation and
Supplemental Pension Benefit Plan (the "Deferred Compensation Plan").

          NOW, THEREFORE, be it resolved, that the Deferred Compensation Plan is
hereby amended with respect to Mr. Bardeen to provide the following:

          1.  If Mr. Bardeen's employment with the Company terminates after he
has nonforfeitable rights to a pension payable under the Service Annuity Plan,
the Company will supplement Mr. Bardeen's pension or, in the case of a pre-
retirement death benefit, the pension of Mr. Bardeen's beneficiary, by the
additional amount which would be payable under the Service Annuity Plan if Mr.
Bardeen's service for purposes of calculating benefits is increased by twenty
additional years.

          2.  Payments authorized under this Resolution shall be in the form and
manner provided under Paragraph 9 of the Deferred Compensation Plan, including
any post-retirement benefit increases and settlement options otherwise
applicable to payments thereunder.

          3.  In all other respects, the Deferred Compensation Plan shall remain
in full force and effect as to Mr. Bardeen.

                                      F-1

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