John J. O'Keefe of O'Keefe Realty Inc. has been installed as president of the Montgomery County Board of Realtors. Robert Snider of Merrill Lynch Realty/Chris Coile was installed as president-elect.

William F. Kuhnmuench has been appointed real estate manager of Time-Out Family Amusement Centers Inc.

Leo K. Farrall III, president of L.K. Farrall Ltd., has been nominated to be 1983 president of the Maryland Association of Realtors.

C. Wayne Taylor has been appointed vice president and associate counsel of Real Title Co. Inc.

Bruce L. Green has been appointed director of business development for Mount Vernon Realty Inc.

Herbert M. Danick has been named vice president and general manager of Kenneth H. Michael Cos. Inc. He was formerly an owner of Schick and Pepe Realty Inc. Marilyn Coolidge, previously a corporate real estate representative for Safeway Stores Inc., has also joined the company.

Arnold I. Richman has been appointed chairman of Meridian Healthcare, a subsidiary of the health care and real estate development firm Meridian Inc. Edward A. Burchell was named president of the subsidiary. Both were formerly with the parent company.

Jacqueline Darrell has been appointed director of the time-sharing division of B.E. Walton Real Estate Inc.

Colin McGowan has been appointed manager of the Hugh T. Peck Properties office in Laurel. She was formerly with Gary Hart Associates in Anne Arundel County.

John Steven Willman has joined Pittas Construction as vice president of its commercial and residential renovation and restoration division. He was formerly assistant vice president of sales and marketing for Crowell & Baker Construction Co.