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 Greater Atlantic Financial Corp. of our report dated January 12, 2009, relating to the consolidated financial statements, which appears in this Form 10-K. Our report contains an explanatory paragraph regarding the Company's ability to continue as a going concern. /s/ BDO Seidman, LLP Richmond, Virginia January 12, 2009