Washington appraiser William S. Harps was recently elected first vice president of the American Institute of Real Estate Appraisers. Harps, a former president of the Washington Board of Realtors and the first black appraiser to receive the MAI (Member, Appraisal Institute) designation, is in line to head the organization in 1981. His son, Richard, was recently awarded the MAI designation, after passing technical examinations and completing eight years of appraisal work.Both are associated with John R. Pinkett Inc.

Thomas L. Aman has been promoted to vice president of Jerry Sardone Realty Inc. in Sterling.

Greenhoot Inc., has named Roy Skeens, a retired Air Force officer, to be vice president in charge of commercial property management at a new office of the real estate company at Tysons Corner.

Lawrence C. Merkl has been named manager of the Potomac office of the Long & Foster real estate firm.

Stanley Reid, a property manager with Poretsky Management Inc., has been elected president of the Property Management Association of Metropolitan Washington. Other officers are John Gallagher, Augustine Ormrod, Lawrence F. Simmons and James J. Ackermann.

Hugh Gordon has been named personnel manager of Kettler Brothers Inc. He joined the firm in 1972 while attending the University of Maryland.

Routh Robbins Real Estate Corp. has named Ray Gibson manager of the firm's Bethesda office. Milton Welsh has been named manager of the firm's office in Annandale.

Realtor Willy Orth has opened Realty World/Casey Realty in Winchester, Va.

Lawrence P. Goodwin has been re-elected president of the D.C. Builders Association. He is president of United Research & Development Corp. Other newly elected officers are Daniel R. O'Leary, Phillip R. Miller, Lisle T. Lipscomb and Frank Calcara.