Document:

<PAGE>
                                                                    Exhibit 10.4

                                                              September 22, 2004

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
Attention:  Craig A. Vanderburg

RE:   FORBEARANCE ARRANGEMENT ("FORBEARANCE AGREEMENT") DATED JULY 1, 2004,
      AMONG COMERICA BANK ("BANK"), SUNSHINE STAFF LEASING, INC., SUNSHINE
      COMPANIES, INC., SUNSHINE COMPANIES II, INC., SUNSHINE COMPANIES III,
      INC., SUNSHINE COMPANIES IV, INC., PARADYME, INC., AND ABS IV, INC.
      ("BORROWERS"), CRAIG A. VANDERBURG, JOHN BURCHAM, PRESIDION SOLUTIONS,
      INC. F/K/A AFFINITY BUSINESS SERVICES, INC. AND PRESIDION CORPORATION
      ("GUARANTORS")

Dear Mr. Vanderburg:

Please refer to any and all documents, instruments and agreements executed in
connection with the financing arrangements from Bank to Borrowers and Guarantors
including the Forbearance Agreement (collectively, the "Loan Documents"). All
amounts due from Borrowers to Bank, whether now or in the future, contingent,
fixed, primary and/or secondary, including, but not limited to, principal,
interest, inside and outside counsel fees, audit fees, costs, expenses, and any
and all other charges provided for in the Loan Documents shall be known, in the
aggregate, as the "Liabilities". All capitalized terms not defined in this
letter agreement ("Second Agreement") shall have the meanings described in the
Loan Documents.

As of September 20, 2004 the Liabilities include:

<TABLE>
<CAPTION>
LOANS (NOTE AMOUNT AND DATE)        PRINCIPAL             INTEREST
---------------------------         ---------             --------

<S>                                  <C>                  <C>
REVOLVING LOAN
($6,000,000; 09/30/03)               $1,700,000.00        $9,751.39
</TABLE>

The amounts referenced above are exclusive of interest accruing after September
20, 2004, costs and expenses (including, but not limited to, audit fees and
inside and outside counsel fees).

Without limitation we have reviewed the June 30, 2004 financial statements,
which showed substantial losses. Also, Borrowers are in default of financial
covenants under the Loan Document, including the required minimum debt service
coverage and minimum net worth. Borrowers have disclosed that Borrowers have
failed to pay Federal withholding taxes which are due and owing.

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 2

As a result of and for the reasons outlined above, Bank hereby restates its
demands payment in full of all of the Liabilities. By copy of this letter demand
is also hereby made of the Guarantors of the Liabilities.

Bank's agreement to forbear under the Forbearance Agreement terminated on July
31, 2004. On August 5, 2004, Bank notified Borrowers and Guarantors in writing
of the termination of any obligation of Bank to forbear from further action to
collect the Liabilities, and Bank reserved all rights and remedies. Borrowers
and Guarantors have requested that Bank again forbear from further action to
collect the Liabilities.

Subject to Borrowers' and Guarantors' timely, written acceptance of the
following conditions, Bank is willing to forbear until November 20, 2004,
subject to earlier termination as provided below, from further action to collect
the Liabilities:

1.  Borrowers and Guarantors acknowledge the Liabilities as set out in the Loan
    Documents, the amount of the Liabilities as stated above and the existence
    of the defaults. Borrowers and Guarantors acknowledge and agree that Bank's
    demand for repayment of the Liabilities is timely and proper.

2.  Future administration of the Liabilities and financing arrangements among
    Bank, Borrowers and Guarantors shall continue to be governed by the
    covenants, terms and conditions of the Loan Documents, which are ratified
    and confirmed and are incorporated by this reference, except to the extent
    that the Loan Documents have been superseded, amended, modified or
    supplemented by this Second Agreement, then this Second Agreement shall
    govern.

3.  Borrowers and Guarantors acknowledge Bank is under no obligation to advance
    funds or extend credit to Borrowers pursuant to the Loan Documents, or
    otherwise.

4.  Borrowers agree to use their best efforts (i) to procure alternative
    financing to repay the Liabilities in full by October 31, 2004, and (ii) to
    procure by October 31, 2004 a letter of credit or other support acceptable
    to Bank to further secure payment of the Liabilities. Borrowers will provide
    to Bank, upon Bank's request, written evidence of those efforts.

    Borrowers shall at the request of Bank execute a notification to each maker
    of each note pledged to Bank advising each to pay Bank directly all future
    payments under the notes.

5.  Borrowers shall make the following principal payments to Bank by the due
    dates indicated:

<TABLE>
<CAPTION>
        DUE DATE             AMOUNT
        --------             -------

       <S>                  <C>
        September 24, 2004   $200,000
        October 1, 2004      $200,000
        October 8, 2004      $200,000
        October 15, 2004     $200,000
        October 22, 2004     $200,000
        October 29, 2004     $200,000
        November 5, 2004     $200,000
        November 12, 2004    $200,000
        November 19, 2004    $100,000
</TABLE>

    Also, concurrently with execution and delivery of this Second Agreement,
    Borrowers shall reimburse Bank for attorney fees and expenses of $34,365.85.
    This reimburses Bank for only a portion of the fees

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 3

    and expenses included in the Liabilities. Without limitation, the
    Liabilities continue to include all costs and expenses incurred by Bank
    (including all attorney fees and expenses).

6.  Concurrently with execution of this Second Agreement, Borrowers will pay to
    Bank a fee of $25,000. The entire fee is in consideration of Bank's costs in
    negotiating and structuring this Second Agreement (and not as consideration
    for any specific period of forbearance). This fee is fully earned upon
    acceptance of this Second Agreement by Borrowers and Guarantors and is not
    refundable. If the Liabilities are paid in full by October 15, 2004, and as
    of the date of such payoff Borrowers have timely made all payments required
    under this Second Agreement and Bank has not terminated its forbearance
    under this Second Agreement, then at the closing of the payoff of the loan,
    the Borrowers shall receive a $25,000 credit against the payoff amount.

7.  By October 15, 2004, Mr. Burcham shall deliver to Bank copies of all
    mortgages on his residence and statements identifying the then current
    balances secured by those mortgages. By October 15, 2004, Mr. Burcham shall
    deliver to Bank copies of the annuity contract identified by him in his
    prior personal financial statement delivered to Bank.

8.  Effective as of August 1, 2004, Interest on Liabilities shall accrue at
    Bank's "prime rate" (as defined in the Loan Documents) plus six percentage
    points (6.0%) and shall be due and payable on the first (1st) day of each
    and every month, and upon the occurrence of a default under the terms of
    this Second Agreement or any further defaults under the Loan Documents, then
    the Liabilities shall accrue interest at the rate otherwise provided in this
    paragraph plus three percentage points (3.0%).

9.  Borrowers and Guarantors acknowledge and agree the Loan Documents presently
    provide for and they shall reimburse for any and all costs and expenses of
    Bank, including, but not limited to, all inside and outside counsel fees of
    Bank whether in relation to drafting, negotiating or enforcement or defense
    of the Loan Documents or this Agreement, including any preference or
    disgorgement actions as defined in this Agreement and all of Bank's audit
    fees, incurred by Bank in connection with the Liabilities, Bank's
    administration of the Liabilities and/or any efforts of Bank to collect or
    satisfy all or any part of the Liabilities. Borrowers and Guarantors shall
    immediately reimburse Bank for all of Bank's costs and expenses upon Bank's
    incurrence thereof or upon demand.

10. Loan payments, interest on the Liabilities, loan administration expenses,
    including, but not limited to, all inside and outside counsel fees of Bank
    and Bank's audit fees, may be charged directly to Borrower's checking
    account maintained with Bank.

11. In addition to all reporting currently required by the Loan Documents; (a)
    Borrowers shall provide weekly to Bank updated cash flow forecasts by
    Tuesday of each week for the preceding week, in form acceptable to Bank; and
    (b) Borrowers shall provide weekly to Bank updated tracking of Borrower's
    outstanding, unpaid withholding tax liabilities, in form acceptable to Bank;
    (c) copies of month end payroll taxes reallocation forms prepared by
    Borrowers for IRS as and when delivered to the IRS or by the fifteenth day
    of each month for the prior month, whichever is earlier.

12. Without limitation, Borrowers shall be in default under this Second
    Agreement if the IRS places a lien on the assets of any of the Borrowers for
    unpaid withholding taxes.

13. Borrowers and Guarantors acknowledge and agree the Loan Documents presently
    provide and they shall permit Bank to conduct such fair market value
    appraisals, inspections, surveys and/or testing, whether for environmental
    contamination or otherwise, that Bank deems necessary, on any and all real

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 4

    property and personal property upon which Bank may possess a mortgage or
    security interest securing the Liabilities, and the cost of such appraisals,
    inspections, surveys and testing are part of the costs and expenses for
    which the Borrowers and Guarantors must reimburse Bank.

14. To the extent any payment received by Bank is deemed a preference,
    fraudulent transfer or otherwise by a court of competent jurisdiction which
    requires the Bank to disgorge such payment then such payment will be deemed
    to have never occurred and the Liabilities will be adjusted accordingly

15. This Second Agreement shall be governed and controlled in all respects by
    the laws of the State of Michigan, without reference to its conflict of law
    provisions, including interpretation, enforceability, validity and
    construction.

16. Bank expressly reserves the right to exercise any or all rights and remedies
    provided under the Loan Documents and applicable law except as modified
    herein. Bank's failure to immediately exercise such rights and remedies
    shall not be construed as a waiver or modification of those rights or an
    offer of forbearance.

17. This Second Agreement will inure to the benefit of the Bank and all its
    past, present and future parents, subsidiaries, affiliates, predecessors and
    successor corporations and all of their subsidiaries and affiliates.

18. Borrowers and Guarantors agree to execute any and all additional and
    supplemental documentation, and provide such further assistance and
    assurances as Bank may require, in Bank's sole and absolute discretion, to
    give full effect of the terms, conditions and intentions of this Agreement.

19. Bank anticipates that discussions addressing the Liabilities may take place
    in the future. During the course of such discussions, Bank Borrowers and
    Guarantors, may touch upon and possibly reach a preliminary understanding on
    one or more issues prior to concluding negotiations. Notwithstanding this
    fact and absent any express written waiver by Bank, Bank will not be bound
    by an agreement on any individual issues unless and until an agreement is
    reached on all issues and such agreement is reduced to writing and signed by
    Borrowers and Guarantors, and Bank.

20. As of the date of execution and delivery of this Second Agreement by
    Borrowers and Guarantors, there are no offers outstanding from Bank to
    Borrowers and Guarantors. Any prior offer by Bank, whether oral or written
    is hereby rescinded in full. There are no oral agreements between Bank and
    Borrowers and Guarantors; any agreements concerning the Liabilities are
    expressed only in the existing Loan Documents. The duties and obligations of
    Borrowers and Guarantors and Bank shall be only as set forth in the Loan
    Documents and this Second Agreement when executed by all parties.

21. Borrowers and Guarantors acknowledge that they have reviewed (or have had
    the opportunity to review) this Second Agreement with counsel of their
    choice and have executed this Second Agreement of their own free will and
    accord and without duress or coercion of any kind by Bank or any other
    person or entity.

22. BORROWERS, GUARANTORS AND BANK ACKNOWLEDGE AND AGREE THAT THE RIGHT TO TRIAL
    BY JURY IS A CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED. EACH PARTY,
    AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO CONSULT) WITH COUNSEL OF
    THEIR CHOICE, KNOWINGLY AND VOLUNTARILY, AND FOR THEIR MUTUAL BENEFIT WAIVES
    ANY RIGHT TO TRIAL

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 5

    BY JURY IN THE EVENT OF LITIGATION REGARDING THE PERFORMANCE OR ENFORCEMENT
    OF, OR IN ANY WAY RELATED TO, THIS AGREEMENT, THE LOAN DOCUMENTS OR
    LIABILITIES.

23. DEFAULTS HAVE OCCURRED UNDER THE LOAN DOCUMENTS. BORROWERS AND GUARANTORS,
    TO THE FULLEST EXTENT ALLOWED UNDER APPLICABLE LAW, WAIVE ALL NOTICES THAT
    BANK MIGHT BE REQUIRED TO GIVE BUT FOR THIS WAIVER, INCLUDING ANY NOTICES
    OTHERWISE REQUIRED UNDER SECTION 6 OF ARTICLE 9 OF THE UNIFORM COMMERCIAL
    CODE AS ENACTED IN THE STATE OF MICHIGAN OR THE RELEVANT STATE CONCERNING
    THE APPLICABLE COLLATERAL (AND UNDER ANY SIMILAR RIGHTS TO NOTICE GRANTED IN
    ANY ENACTMENT OF REVISED ARTICLE 9 OF THE UNIFORM COMMERCIAL CODE).
    FURTHERMORE, BORROWERS AND GUARANTORS WAIVE (A) THE RIGHT TO NOTIFICATION OF
    DISPOSITION OF THE COLLATERAL UNDER SECTION 9-611 OF THE UNIFORM COMMERCIAL
    CODE, (B) THE RIGHT TO REQUIRE DISPOSITION OF THE COLLATERAL UNDER SECTION
    9-620(E) OF THE UNIFORM COMMERCIAL CODE, AND (C) ALL RIGHTS TO REDEEM ANY OF
    THE COLLATERAL UNDER SECTION 9-623 OF THE UNIFORM COMMERCIAL CODE.

24. BORROWERS AND GUARANTORS, IN EVERY CAPACITY, INCLUDING, BUT NOT LIMITED TO,
    AS SHAREHOLDERS, PARTNERS, OFFICERS, DIRECTORS, INVESTORS AND/OR CREDITORS
    OF BORROWERS AND/OR GUARANTORS, OR ANY ONE OR MORE OF THEM, HEREBY WAIVE,
    DISCHARGE AND FOREVER RELEASE BANK, BANK'S EMPLOYEES, OFFICERS, DIRECTORS,
    ATTORNEYS, STOCKHOLDERS AND SUCCESSORS AND ASSIGNS, FROM AND OF ANY AND ALL
    CLAIMS, CAUSES OF ACTION, DEFENSES, COUNTERCLAIMS OR OFFSETS AND/OR
    ALLEGATIONS BORROWERS AND/OR GUARANTORS MAY HAVE OR MAY HAVE MADE OR WHICH
    ARE BASED ON FACTS OR CIRCUMSTANCES ARISING AT ANY TIME UP THROUGH AND
    INCLUDING THE DATE OF THIS AGREEMENT, WHETHER KNOWN OR UNKNOWN, AGAINST ANY
    OR ALL OF BANK, BANK'S EMPLOYEES, OFFICERS, DIRECTORS, ATTORNEYS,
    STOCKHOLDERS AND SUCCESSORS AND ASSIGNS.

25. This Second Agreement may be executed in counterparts and facsimiles and the
    counterpart, when properly executed and delivered by signing deadline, will
    constitute a fully executed complete agreement.

24. Borrowers and Guarantors shall properly execute this Second Agreement and
    hand deliver same to the undersigned by no later than 5:00 p.m. on September
    24, 2004.

Bank reserves the right to terminate its forbearance prior to November 20, 2004,
in the event of any new defaults under the Loan Documents, defaults under this
Second Agreement, in the event of further deterioration in the financial
condition of Borrowers or Guarantors or further deterioration in Banks
collateral position, and/or in the event Bank, for any reason, believes that the
prospect of payment or performance is impaired.

Very truly yours,

/s/ Jacob Villemure
-------------------
Jacob Villemure

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 6

Assistant Vice President
P.O. Box 75000
MC 3205
Detroit, Michigan 48275-3205
(313) 222-9218
fax: (313) 222-1244

                           [SIGNATURE PAGES TO FOLLOW]

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 7

ACKNOWLEDGED AND AGREED:

SUNSHINE STAFF LEASING, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------

SUNSHINE COMPANIES, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------

SUNSHINE COMPANIES II, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------

SUNSHINE COMPANIES III, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------

SUNSHINE COMPANIES IV, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President

PARADYME, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President

ABS IV, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President

/s/ Craig A. Vanderburg             Date:  September 22, 2004
-----------------------
Craig A. Vanderburg

/s/ John Burcham                    Date:  September 22, 2004
----------------
John Burcham

<PAGE>

Sunshine Staff Leasing, Inc.
Sunshine Companies, Inc.
Sunshine Companies II, Inc.
Sunshine Companies III, Inc.
Sunshine Companies IV, Inc.
Paradyme, Inc.
ABS IV, Inc.
September 22, 2004
Page 8

PRESIDION SOLUTIONS, INC.

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------

PRESIDION CORPORATION

By:  /s/ Craig A. Vanderburg        Date:  September 22, 2004
     -----------------------
Its:  President
      ---------<PAGE>
                                                                    Exhibit 10.5

                         AMENDMENT AND WAIVER AGREEMENT

THIS AMENDMENT AND WAIVER AGREEMENT (this "Agreement"), effective as of August
1, 2004, is entered into by and among MERCATOR MOMENTUM FUND, L.P., a California
limited partnership ("MMF"), MERCATOR MOMENTUM FUND III, L.P., a California
limited partnership ("MMFIII"), MERCATOR FOCUS FUND, L.P., a California limited
partnership ("MFF" and together with MMF and MMFIII, the "Lenders" and each of
them, a "Lender"), MERCATOR ADVISORY GROUP, LLC, as Agent for Lenders ("Agent"),
and PRESIDION SOLUTIONS, INC., a Florida corporation ("Company"), and PRESIDION
CORPORATION, formerly known as MediaBus Networks, Inc., a Florida corporation
("Parent" and together with Company, the "Borrowers" and each, a "Borrower"), as
with reference to the following facts:

                                    RECITALS

A.      Borrowers have issued, on a joint and several basis, that certain 6.5%
        Secured Convertible Debenture due February 12, 2004 in the original
        principal amount of $1,560,000 in favor of MFF (as amended from time to
        time, the "MFF Debenture").

B.      Borrowers have issued, on a joint and several basis, that certain 6.5%
        Secured Convertible Debenture due February 12, 2004 in the original
        principal amount of $240,000 in favor of MMF (as amended from time to
        time, the "MMF Debenture").

C.      Borrowers have issued, on a joint and several basis, that certain 6.5%
        Secured Convertible Debenture due February 12, 2004 in the original
        principal amount of $200,000 in favor of MMFIII (as amended from time to
        time, the "MMFIII Debenture" and together with the MFF Debenture and the
        MMF Debenture, the "Debentures").

D.      Borrowers have defaulted (such Defaults, the "Existing Defaults"):

           (1) under Section 3(a)(ii) of each of the Debentures, by reason of
               the fact that Parent has failed to file the Underlying Share
               Registration Statement with the Commission within sixty days of
               the Original Issue Date;

           (2) under Section 3(a)(viii) of each of the Debentures, by reason of
               the fact that the Underlying Share Registration Statement has not
               been declared effective by the Commission on or prior to the one
               hundred and fiftieth day of the Original Issue Date; and,

           (3) under Section 3(a)(i) of each of the Debentures, by reason of the
               fact the principal has not been paid as of the Maturity Date set
               forth therein.

E.      Borrowers have requested that Agent and Lenders:

                                      -1-
<PAGE>

        (1) forbear from exercising their available default rights and remedies
        under the Debentures and applicable law in response to the Existing
        Defaults;

        (2)    waive the Existing Defaults; and

        (3)    amend each of the Debentures as set forth below.

F.      Agent and Lenders are willing to provide Borrowers with the foregoing
accommodations on the terms and conditions hereinafter set forth.

                                    AGREEMENT

NOW, THEREFORE, the parties hereby agree as follows:

1.      Defined Terms. All initially capitalized terms used in this Agreement
        (including, without limitation, in the Recitals hereto) shall have the
        respective meanings specified in the Debentures.

2.      Amendment to Debentures. Each of the Debentures is hereby amended as
        follows:

        (a)    by amending and restating Section 3(a)(ii) of such Debenture, in
               full as follows:

               "(ii) the Parent shall fail to file the Underlying Shares
               Registration Statement with the Commission on or prior to January
               3, 2005,"

        (b)    by amending and restating Section 3(a)(viii) of such Debenture,
               in full as follows:

               "(viii)an Underlying Shares Registration Statement (as defined in
               Section 5) shall not have been declared effective by the
               Commission (as defined in Section 5) on or prior to January 31,
               2005. The Company and the Parent shall each use their best
               efforts and all available resources to have the Underlying Shares
               Registration Statement declared effective by the Commission on or
               prior to January 31, 2005,"

        (c)    by amending and restating all references to the Maturity Date to
               read as follows:

               "January 3, 2005"

3.      Waiver. Agent and Lenders hereby waive, on a one-time basis, the
        Existing Defaults provided that such waiver shall not constitute a
        waiver of:

        (a)    any future breach of Sections 3(a)(ii) or 3(a)(viii) of any of
               the Debentures; or

        (b)    any other term, condition, covenant, representation or warranty
               contained in any Debenture or any future breach thereof.

                                      -2-
<PAGE>

4.      Condition Precedent. The effectiveness of this Agreement shall be
        subject to the prior satisfaction of each of the following conditions:

        (a)    Agreement. Agent shall have received this Agreement, duly
               executed by each of the Lenders and the Borrowers.

        (b)    Consent and Amendment Agreement of Guarantors. Each of the
               Company, Craig A. Vanderburg, John W. Burcham II and James E.
               Baiers (the "Guarantors") shall have executed the Consent and
               Amendment Agreement of Guarantors in the form attached hereto as
               Exhibit "A".

        (c)    Waiver and Amendment Fee. Borrowers shall have paid the Waiver
               and Amendment Fee to Agent in immediately available funds.

5.      Waiver and Amendment Fee. In consideration of Agent's and Lenders'
        agreement to enter into this Agreement and provide Borrowers with the
        accommodations provided hereunder Borrowers shall, concurrent with the
        execution of this Agreement, pay to the Agent on behalf of the Lenders a
        monthly fee, payable on the first of each calendar month commencing
        September 1, 2004 and continuing thru January 3, 2005 in the amount of
        $8,572.00 per month (the "Waiver and Amendment Fee") which shall be
        fully-earned when paid and nonrefundable. The amount of the Waiver and
        Amendment Fee accrued as of the date of this Agreement, $8,572.00, shall
        be due and payable immediately.

6.      Redemption of Debentures.  Borrowers shall immediately tender to Lenders
        a redemption payment with respect to the Debentures in an amount (a
        "Redemption Amount") equal to 50% of the net cash proceeds (after
        deduction of all reasonable transactional expenses) received by the
        Borrowers from each offering of their debt or equity securities, or from
        any loan transaction, following the date of this Agreement; provided
        that the Redemption Amount shall not exceed the redemption price of the
        then outstanding Debentures. The redemption price shall be 115% of the
        principal amount redeemed plus accrued interest. Subject to the Lenders'
        acceptance of any such tender, if the Redemption Amount equals or
        exceeds the redemption price of the then outstanding Debentures, then
        all of the Debentures shall be redeemed, while if the Redemption Amount
        is less than the redemption price for the then outstanding Debentures,
        then the Debentures shall be partially redeemed. All redemption payments
        shall be allocated ratably among the Debentures. The Borrowers' failure
        to immediately tender such a redemption payment with respect to the
        Debentures in accordance with the terms hereof shall constitute an Event
        of Default under each of the Debentures. Notwithstanding the foregoing,
        the Lenders may (in their sole and absolute discretion) refuse to accept
        any such tendered redemption payment. If the Lenders so refuse, the
        Debentures shall not be redeemed and will remain outstanding.

7.      Reimbursement of Expenses. Borrowers shall be obligated, jointly and
        severally, to reimburse Agent and Lenders for any and all legal fees
        (including the reasonable legal fees of Agent and Lenders' outside
        counsel) and other expenses which are incurred by them in connection
        with the approval, documentation, negotiation and implementation

                                      -3-
<PAGE>

        of this Agreement or in connection with the Existing Defaults within 5
        days of receiving demand therefor. The Borrowers' failure to timely
        reimburse such fees shall constitute an Event of Default under each of
        the Debentures.

8.      Release.  In consideration of the execution and delivery of this
        Agreement, and the forbearances and waivers requested of the Lenders,
        each Borrower hereby releases, remises and forever discharges Agent and
        Lenders, and each of them, and their respective officers, directors,
        employees, agents, affiliates and attorneys, without conditions
        precedent to effectiveness, from all actions and causes of action
        heretofore arising out of or related to the Debentures or any document,
        instrument or agreement executed in connection therewith or relating
        thereto, or the relationship of any Borrower to Agent or any Lender, in
        each case whether known or unknown to any Borrower as of the date
        hereof. Each Borrower acknowledges that it has been advised by legal
        counsel, to the extent that it has seen fit, and is familiar with and
        waives the provision of California Civil Code Section 1542, which
        provides as follows:

               "A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR
               DOES NOT KNOW OR SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF
               EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM MUST HAVE MATERIALLY
               AFFECTED HIS SETTLEMENT WITH THE DEBTOR."

9.      No Other Amendments; Reaffirmation of Debentures; No Defenses. Except as
        expressly amended hereby, the Debentures shall remain unaltered and in
        full force and effect. Each Borrower hereby reaffirms the Debentures and
        its obligations to Lenders thereunder. Each Borrower represents and
        warrants to Agent and Lenders that there are no outstanding Events of
        Default under any Debenture other than the Existing Defaults. Borrower
        acknowledges that Agent and Lenders have fully complied with their
        obligations under the Debentures and that Borrowers have no defenses to
        the validity, enforceability or binding effect of any of the Debentures.

10.     Counterparts.  This Agreement may be executed in multiple counterparts,
        each of which shall constitute an original, and all of which, taken
        together, shall constitute but one and the same agreement.

11.     Recitals.  Each Borrower acknowledges and agrees that the Recitals set
        forth above are true and correct and are incorporated by reference
        herein.

12.     Governing Law.  This Agreement shall be governed by and construed in
        accordance with the laws of the State of California, without giving
        effect to conflicts of laws thereof.

13.     Facsimile Transmission.  Facsimile transmission of a signed original of
        this Amendment or retransmission of any signed facsimile transmission
        will be deemed the same as delivery of an original. At the request of
        any other party hereto, each of the undersigned will confirm facsimile
        transmission by signing a duplicate original document.

                                      -4-
<PAGE>

IN WITNESS WHEREOF, the parties have executed this Amendment by their respective
duly authorized officers as of the date first above written.

                             AGENT:

                             MERCATOR ADVISORY GROUP, LLC, as Agent for Lenders

                             By: /s/ Signature
                                 -------------
                             Name:
                                  -------------------------
                             Title: Portfolio Manager
                                    -----------------

                             LENDERS:

                             MERCATOR MOMENTUM FUND, L.P.

                             By: /s/ Signature
                                 -------------
                             Name:
                                  -------------------------
                             Title: Portfolio Manager
                                    -----------------

                             MERCATOR MOMENTUM FUND III, L.P.

                             By: /s/ Signature
                                 -------------
                             Name:
                                  -------------------------
                             Title: Portfolio Manager
                                    -----------------

                             MERCATOR FOCUS FUND, L.P.

                             By: /s/ Signature
                                 -------------
                             Name:
                                  -------------------------
                             Title: Portfolio Manager
                                    -----------------

                    (Signatures continued on following page)

                                      -5-
<PAGE>

                              BORROWERS:

                              PRESIDION CORPORATION,
                              a Florida corporation

                              By:  /s/ Craig A. Vanderburg
                                   -----------------------
                              Name:    Craig A. Vanderburg
                                       -------------------
                              Title:  CEO
                                      ---

                              PRESIDION SOLUTIONS, INC.,
                              a Florida corporation

                              By:  /s/ Craig A. Vanderburg
                                   -----------------------
                              Name:    Craig A. Vanderburg
                                       -------------------
                              Title:  CEO
                                      ---

                                      -6-
<PAGE>

                                   EXHIBIT "A"

                  CONSENT AND AMENDMENT AGREEMENT OF GUARANTORS

This Consent and Amendment Agreement of Guarantors (this "Agreement") is made as
of May 5, 2004, by each of the undersigned (collectively, the "Guarantors" and
each, a "Guarantor"), in favor of MERCATOR MOMENTUM FUND, L.P., a California
limited partnership ("MMF"), MERCATOR MOMENTUM FUND III, L.P., a California
limited partnership ("MMFIII"), MERCATOR FOCUS FUND, L.P., a California limited
partnership ("MFF" and together with MMF and MMFIII, the "Lenders" and each of
them, a "Lender") and MERCATOR ADVISORY GROUP, LLC, as Agent for Lenders
("Agent").

                                    RECITALS

A.      Each Guarantor has executed a Payment Guaranty, dated as of February 11,
        2003 (each, a "Guaranty" and collectively, the "Guaranties"), pursuant
        to which such Guarantor unconditionally guaranteed to Agent, for the
        benefit of the Lenders, the full payment of the Loan. All initially
        capitalized terms used in this Agreement but not defined shall have the
        respective meanings set forth in the Guaranties.

B.      Concurrently herewith Borrowers are entering into an Amendment and
        Waiver Agreement dated the date hereof with Agent and Lenders (the
        "Amendment"), pursuant to which Agent and Lenders have agreed to waive
        the Existing Defaults (as defined in the Amendment) and to amend certain
        provisions of the Loan Documents, all as more fully set forth in the
        Amendment.

C.      Guarantors are entering into this Agreement to induce the Lenders to
        enter into the Amendment.

                                    AGREEMENT

NOW, THEREFORE, Guarantors, Agent and Lenders agree as follows:

1.      Amendments to Guaranties.  Each Guaranty is hereby amended as follows:

        (a)    Mercator Momentum Fund III, L.P., a California limited
               partnership shall be a party to and a "Lender" under each
               Guaranty. For greater certainty, the term "Lenders" shall mean,
               collectively, Mercator Momentum Fund, L.P., a California limited
               partnership, Mercator Momentum Fund III, L.P., a California
               limited partnership, and Mercator Focus Fund, L.P., a California
               limited partnership and the term "Lender" shall mean any of them.

        (b)    Recital "A" to each Guaranty is hereby amended and restated in
               full as follows:

               "A. Guarantor is executing this Guaranty to induce Lenders to
               make three separate loans (defined, together in Section 2 as the
               "Loan") to Presidion Corporation, formerly known as MediaBus
               Networks, Inc., a Florida corporation, and Presidion Solutions,
               Inc., a Florida corporation (each a

                                      -7-
<PAGE>

               "Borrower" and together, "Borrowers"), in the aggregate principal
               amount of Two Million Dollars ($2,000,000.00)."

2.      Reaffirmation of Guaranties.  Each Guarantor hereby:

        (a)    ratifies and reaffirms all provisions, terms, covenants, and
               waivers set forth in its respective Guaranty, as amended hereby
               as of the date hereof; and

        (b)    agrees that its respective Guaranty, as amended hereby,
               constitutes a valid, binding obligation of such Guarantor,
               enforceable according to its terms, for which there is no offset,
               counterclaim, dispute, or defense of any kind or nature.

3.      Consent to Amendment.  Each Guarantor hereby acknowledges it has
        received copies of, and consents to, the Amendment and the documents,
        instruments and agreements executed in connection therewith and agrees
        that its respective Guaranty shall remain in full force and effect,
        without waiver or modification (except as amended hereby),
        notwithstanding the execution and performance of the Amendment and the
        documents, instruments and agreements executed in connection therewith.
        Each Guarantor hereby agrees that the execution of this Agreement is not
        necessary for the continued validity and enforceability of its
        respective Guaranty, but it is executed to induce the Lenders to enter
        into the Amendment.

4.      Facsimile Transmission.  Facsimile transmission of a signed original of
        this Agreement or retransmission of any signed facsimile transmission
        will be deemed the same as delivery of an original. At the request of
        the Lenders, or any of them, each of the undersigned will confirm
        facsimile transmission by signing a duplicate original document.

                              PRESIDION SOLUTIONS, INC.,
                              a Florida corporation

                              By:  /s/ Craig A. Vanderburg
                                   -----------------------
                              Name:    Craig A. Vanderburg
                                       -------------------
                              Title: Pres / CEO
                                     ----------

                              /s/ Craig A. Vanderburg
                              -----------------------
                              CRAIG A. VANDERBURG

                    (Signatures continued on following page)

                                      -8-
<PAGE>

                              /s/ John W. Burcham II
                              ----------------------
                              JOHN W. BURCHAM II

                              /s/ James E. Baiers
                              -------------------
                              JAMES E. BAIERS

                                      -9-

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