Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Walker & Dunlop, Inc.:

We consent to the incorporation by reference in this registration statement on Form S-3 of Walker & Dunlop, Inc. of our reports dated March 9, 2012, with respect to the consolidated balance sheets of Walker & Dunlop, Inc. and subsidiaries as of December 31, 2011 and 2010, and the related consolidated statements of income, stockholders’ equity and comprehensive income, and cash flows for each of the years in the three-year period ended December 31, 2011, and the effectiveness of internal control over financial reporting as of December 31, 2011, which reports appear in the December 31, 2011 annual report on Form 10-K of Walker & Dunlop, Inc., and to the reference to our firm under the heading “Experts” in the prospectus.

/s/ KPMG LLP

McLean, Virginia

October 4, 2012