GREATER ATLANTIC FINANCIAL CORP.
                   SETS DATE OF SPECIAL SHAREHOLDERS' MEETING


Reston, Virginia; July 28, 2008. Greater Atlantic Financial Corp. ("GAFC") (Pink
Sheets: "GAFC.PK") announced today that its Board of Directors has set September
4, 2008, as the date of its Special Meeting of Shareholders to vote on the
Company's pending merger with Summit Financial Group, Inc. (NASDAQ:SMMF ).

The meeting will start at 10:00 a.m., local time, and will be held at the Crowne
Plaza Tysons Corner, 1960 Chain Bridge Road, in McLean, Virginia. The voting
record date is July 28, 2008, and shareholder proxy materials will be mailed on
or about August 7, 2008.

Greater Atlantic Financial Corp. is the holding company for Greater Atlantic
Bank, a federally-chartered savings bank. We offer traditional banking services
to customers through our bank branches located throughout the greater
Washington, DC metropolitan area. Greater Atlantic Financial Corp. had
approximately $230 million in assets at March 31, 2007.

Summit Financial Group, Inc. has filed a registration statement containing a
prospectus-proxy statement that will be sent to shareholders of Greater Atlantic
Financial Corp. and other relevant documents concerning the proposed merger with
the U.S. Securities and Exchange Commission (the "SEC"). WE URGE SHAREHOLDERS TO
READ THE PROSPECTUS-PROXY STATEMENT TO BE SENT TO THEM, AND ANY OTHER RELEVANT
DOCUMENTS FILED BY SUMMIT FINANCIAL GROUP, INC. AND GREATER ATLANTIC FINANCIAL
CORP. WITH THE SEC BECAUSE THEY CONTAIN IMPORTANT INFORMATION.

Investors are able to obtain these documents free of charge at the SEC's web
site (www.sec.gov). In addition, documents that Summit Financial Group, Inc.
files with the SEC are available free of charge at its web site
(www.summitfgi.com) and from the Investors Relations Department, Summit
Financial Group, 300 North Main Street, Moorefield, West Virginia 26836.
Documents that Greater Atlantic Financial Corp. files with the SEC are available
free of charge at its web site (www.gab.com) and from the Corporate Secretary,
Greater Atlantic Financial Corp., 10700 Parkridge Boulevard, Reston, Virginia
20191.

The directors, executive officers, and certain other members of management of
Greater Atlantic Financial Corp. may be soliciting proxies in favor of the
proposed merger from the shareholders of Greater Atlantic Financial Corp. For
information about these directors, executive officers, and other members of
management, shareholders are asked to refer to the most recent proxy statement
that Greater Atlantic Financial Corp. has issued, which is available on its web
site or at the address provided in the preceding paragraph.

CONTACT:
Carroll E. Amos
President & CEO
GREATER ATLANTIC FINANCIAL CORP.
(703) 391-1300
www.gab.com