Exhibit 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Board of Directors Greater Atlantic Financial Corp. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (333-76169 and 333-92342) of our report dated January 30, 2007, relating to the consolidated financial statements of Greater Atlantic Financial Corp. appearing in the Company's Annual Report on Form 10-K for the year ended September 30, 2006. /s/ BDO Seidman, LLP Richmond, Virginia January 30, 2007