Carol S. Gardell recently promoted to director of the marketing department of Charles E. Smith Companies. She was previously retail marketing director.

William R. Deven has been named vice president for corporate planning for Ryland Group Inc.

Sol Gerstman has joined Twin Oaks Associates as a real estate development and feasibility analyst. Prior to his appointment, he was chief of current planning for Baltimore City Planning Department.

Sherman L. Brown has been named executive vice president and chief executive officer of Minority Contractors Assistance Project Inc. He will direct MCAP's corporate administration as well as its national programs of construction and financial management, bonding preparation and procurement assistance.

Houston S. Park III has been named general manager of Cocoplum by the Arvida Corp. Cocoplum is a new, single-family luxury community near Miami. Park was formerly vice president of marketing for the Yeonas Co. of Fairfax.

Don May Jr. has been named manager of the Shannon & Luchs Gaithersburg residential sales office. He is an active member of the Montgomery County board of realtors.

James F. McEneaney has been named president of the Ryland Group Inc. McEneaney previously served as president of the homebuilding firm's Midwest area.

Raymond E. Keeney has been promoted to vice president of St. Charles Associates and vice president of the parent company, Interstate General Corp.

John Lattimer Young has joined Develpoment Resources Inc. of Alexandria. He will be responsible for overall project development financing as well as expansion of the comapany's commercial office developments.

Brian T. Hudson, a Northern Virginia title executive, has joined Colonial Title Co. of Fiarfax as vice president and director of marketing.

Lee S. Harris III has been elected assistant vice president of Walker & Dunlop, a Washington-based realtor and mortgage banker. He heads the firm's Montgomery County leasing team.

John Fridinger has been appointed new homes marketing manager for Shannon & Luchs.

The National Corporation for Housing Partnerships has promoted D.T. Noakes to senior vice president for development, James E. Robertshaw to vice president for corporate systems, and O. Cooper Winston to vice president for property management.