EXHIBIT 10.21

EMPLOYMENT AGREEMENT

ThisEMPLOYMENT AGREEMENT(this "Agreement" is made and entered into effective as of the 17th day of
September, 2001, by and among MAIN STREET BANKS, INC., a Georgia corporation (hereinafter, the "Company", andROBERT D. MCDERMOTT(hereinafter,
"Executive"), to be effective as of the Effective Date, as defined in Section 1.

BACKGROUND

WHEREAS, the Company desires to employ Executive and Executive is willing to provide services to the Company in
accordance with the terms and conditions hereinafter set forth;

NOW, THEREFORE, in consideration of the foregoing and of the mutual covenants and agreements set forth herein, and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1.Effective Date. The effective date of this Agreement (the "Effective Date") will be September 17, 2001.

2.Employment.Executive is hereby employed on the Effective Date as Executive Vice President and Chief Financial Officer of
the Company. In such capacity, Executive shall have such responsibilities commensurate with such positions as set forth in the bylaws of the Company and as shall be assigned to him by the Chief
Executive Officer or the Chief Operating Officer of the Company, or by the Board of Directors of the Company. Executive will report directly to the Chief Operating Officer of the Company.

3.Employment Period.Unless earlier terminated herein in accordance with Section 6 hereof, Executive's employment
shall be for a two year term (the "Employment Period"), beginning on the Effective Date. Beginning on the second anniversary of the Effective Date and on each anniversary of the Effective Date, the
Employment Period shall, without further action by Executive or the Company, be extended by an additional one-year period;provided, however, that either
party may, by notice to the other, cause the Employment Period to cease to extend automatically. Upon such notice, the Employment
Period shall terminate upon the expiration of the then-current term, including any prior extensions. If the Company causes the Employment Period to cease to extend automatically then, in
the absence of Cause (as defined in Section 6(b)), such action shall constitute a termination without Cause and Executive shall be entitled to severance as set forth in Section 7(a).

4.Extent of Service.During the Employment Period, and excluding any periods of vacation to which Executive is entitled,
Executive agrees to devote his business time, attention, skill and efforts exclusively to the faithful performance of his duties hereunder;provided, however, that it shall not be a violation of this Agreement for Executive to (i) devote reasonable periods of time to charitable and community
activities and, with the approval of the Company, industry or professional activities, and/or (ii) manage personal business interests and investments, so long as such activities do not
materially interfere with the performance of Executive's responsibilities under this Agreement. It is expressly understood and agreed that to the extent that any such activities have been conducted by
Executive prior to date of this Agreement, the continued conduct of such activities (or the conduct of activities similar in nature and scope thereto) subsequent to the Effective Date shall not
thereafter be deemed to interfere with the performance of Executive's responsibilities hereunder.

5.Compensation and Benefits.



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6.Termination of Agreement.



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For
purposes of this provision, no act or failure to act, on the part of Executive, shall be considered "willful" unless it is done, or omitted to be done, by Executive in bad faith or
without reasonable belief that Executive's action or omission was in the best interests of MSB or the Company and its shareholders and subsidiaries. Any act, or failure to act, based upon authority
given pursuant to a resolution duly adopted by the Board or based upon the advice of counsel for the Company shall be conclusively presumed to be done, or omitted to be done, by Executive in good
faith and in the best interests of MSB and the Company, its shareholders and subsidiaries. The cessation of employment of Executive under subparagraph (i) or (ii) above shall not be
deemed to be for Cause unless and until there shall have been delivered to Executive a copy of a resolution duly adopted by the affirmative vote of not less than three-fourths of the entire membership
of the Board of Directors of the Company at a meeting of such Board called and held for such purpose (after reasonable notice is provided to Executive and Executive is given an opportunity, together
with counsel, to be heard before such Board), finding that, in the good faith opinion of such Board, Executive is guilty of the conduct described in subparagraph (i) or (ii) above, and
specifying the particulars thereof in detail.



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Good
Reason shall not include Executive's death or Disability. Executive's continued employment shall not constitute consent to, or a waiver of rights with respect to, any circumstance
constituting Good Reason hereunder.

For
the purposes of this Agreement, a "Change in Control" shall mean the occurrence of any of the following events:



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(d)Notice of Termination.Any termination by the Company for Cause, or by Executive for Good Reason shall be communicated by
Notice of Termination to the other party hereto given in accordance with Section 15(f) of this Agreement. For purposes of this Agreement, a "Notice of Termination" means a written notice which
(i) indicates the specific termination provision in this Agreement relied upon, (ii) to the extent applicable, sets forth in reasonable detail the facts and circumstances claimed to
provide a basis for termination of Executive's employment under the provision so indicated and (iii) specifies the termination date. If a dispute exists concerning the provisions of this
Agreement that apply to Executive's termination of employment, the parties shall pursue the resolution of such dispute with reasonable diligence. Within five (5) days of such a resolution, any
party owing any payments

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pursuant to the provisions of this Agreement shall make all such payments together with interest accrued thereon at the rate provided in Section 1274(b)(2)(B) of the Internal Revenue Code of
1986, as amended (the "Code").

(e)Date of Termination."Date of Termination" means (i) if Executive;s employment is terminated other than by reason
of death or Disability, the date of receipt of the Notice of Termination, or any later date specified therein, or (ii) if Executive's employment is terminated by reason of death or Disability,
the Date of Termination will be the date of death or the Disability Effective Date, as the case may be. If Executive's employment is terminated because of the Company's action to stop the automatic
extension of the Employment Period other than for Cause then the Date of Termination shall be the date of expiration of the then-current term of the Employment Period.

7.Obligations of the Company upon Termination.

(a)Termination by Executive for Good Reason After a Change in Control; Termination by the Company Other Than for Cause; Cessation of Automatic
Extension by Company Other Than for Cause.If, during the Employment Period, the Company shall terminate Executive's employment other than for Cause, or Executive shall
terminate employment for Good Reason after a Change in Control, or the Company shall stop the automatic extension of the Employment Period other than for Cause, then:



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(b)Death; Disability or Retirement.If Executive's employment is terminated by reason of Executive's death, Disability or
Retirement during the Employment Period, this Agreement shall terminate without further obligations to Executive or his legal representatives under this Agreement, other than for payment of Accrued
Obligations and the timely payment or provision of Other Benefits. Accrued Obligations shall be paid to Executives estate or beneficiary, as applicable, in a lump sum in cash within 30 days of
the Date of Termination. With respect to the provision of Other Benefits, the term Other Benefits as used in this Section 7(b) shall include, without limitation, and Executive's estate and/or
beneficiaries shall be entitled to receive, benefits under such plans, programs, practices and policies relating to death, disability or retirement benefits, if any, as are applicable to Executive on
the Date of Termination.

(c)Termination for Cause or Termination by Executive Except for Good Reason After a Change in Control.If Executive's
employment shall be terminated for Cause during the Employment Period, or if Executive voluntarily terminates employment during the Employment Period (except for Good Reason after a Change in
Control), this Agreement shall terminate without further obligations to Executive, other than for payment of Accrued Obligations (excluding the pro-rata bonus described in clause 2
of Section 7(a)(i)(A)) and the timely payment or provision of Other Benefits.

8.Non-exclusivity of Rights.Nothing in this Agreement shall prevent or limit Executive's continuing or future
participation in any plan, program, policy or practice provided by the Company and for which Executive may qualify, nor, subject to Section 15(d), shall anything herein limit or otherwise
affect such rights as Executive may have under any contract or agreement with the Company. Amounts which are vested benefits or which Executive is otherwise entitled to receive under any plan, policy,
practice or program of or any contract or agreement with the Company or any of its affiliated companies at or subsequent to the Date of Termination shall be payable in accordance with such plan,
policy, practice or program or contract or agreement except as explicitly modified by this Agreement.

9.Certain Additional Payments by the Company.



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10.Costs of Enforcement.In any action taken in good faith relating to the enforcement of this Agreement or any provision
herein, Executive shall be entitled to be paid any and all costs and expenses incurred by him in enforcing or establishing his rights thereunder, including, without limitation, reasonable attorneys'
fees, whether suit be brought or not, and whether or not incurred in trial, bankruptcy or appellate proceedings.

11.Representations and Warranties.Executive hereby represents and warrants to the Company that Executive is not a party to,
or otherwise subject to, any covenant not to compete with any person or entity, and Executive's execution of this Agreement and performance of his obligations hereunder will not violate the terms or
conditions of any contract or obligation, written or oral, between Executive and any other person or entity.

12.Restrictions on Conduct of Executive.





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Anything
herein to the contrary notwithstanding, Executive shall not be restricted from disclosing or using Confidential Information that is required to be disclosed by law, court order
or other legal process;provided,however, that in the event disclosure is required by law, Executive
shall provide the Company with prompt notice of such requirement so that the Company may seek an appropriate protective order prior to any such required disclosure by Executive.



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(d)Enforcement of Restrictive Covenants.



13.Arbitration.Any claim or dispute arising under this Agreement shall be subject to arbitration, and prior to commencing
any court action, the parties agree that they shall arbitrate all controversies. The arbitration shall be conducted in Atlanta, Georgia, in accordance with the Employment Dispute Rules of the American
Arbitration Association and the Federal Arbitration Act, 9 U.S.C.et. seq.The arbitrator(s) shall be authorized to award both liquidated and actual
damages, in addition to injunctive relief, but no punitive damages. Such an award shall be binding and conclusive upon the parties hereto, subject to 9 U.S.C. 10. Each party shall have the right to
have the award made the judgment of a court of competent jurisdiction.

14.Assignment and Successors.



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15.Miscellaneous.



To Company:

Main Street Banks, Inc.
Edward C. Milligan, President and CEO
676 Chastain Road Kennesaw, Georgia 30144To Executive:

Robert D. McDermott
1121 Floyd Street
Covington, Georgia 30014


Any
party may change the address to which notices, requests, demands and other communications shall be delivered or mailed by giving notice thereof to the other party in the same manner provided
herein.



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IN WITNESS WHEREOF, the parties hereto have duly executed and delivered this Agreement as of the date first above written.

| |  | MAIN STREET BANKS, INC.
| |  | -----------------------
| |  | By:                    
| |  | EXECUTIVE:             
| |  | By:                    

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