Joseph G. Anastasi, former Maryland Secretary of Economic and Community Development has been appointed vice president of Coloquitt-Carruthers, Inc., a real estate firm. He will specialize in commercial and investment properties, builder services, property management and corporate relocation, the firm said.

A political associate of former governor Marvin Mandel, Anastasi held the cabinet level post from 1973 until 1977. During that time he established the Maryland Housing Fund, and directed low- and moderate-income housing and finance programs. Before taking office, he was vice president of Montgomery Realty Co.

Anastasi said in an interview that the recent conviction of Colquitt-Carruthers, and its president J. Thomas Carruthers Jr., for conspiring to fix real estate commission prices was not a consideration in his decision to take the job.

Although his name has been linked politically with Ted Venetoulis, a candidate for governor of Maryland, Anastasi said he has not talked with him about a campaign.

Other personnel changes in area real estate:

Ronald P. Kirby, vice president and project manager of the Watergate at Landmark condominium complex in Alexandria, has been elected president of the area chapter of the Community Associations Institute. The 323-member CAI includes builders, developers, home owners, public officials, property managers and association members who build, own, operate or live in common interest communities.

The National Association of Home Builders has named Louis M. Thompson as director of public affairs. He was an assistant White House press secretary during the Ford administration. Also, NAHB has named F. Thomas Huheey staff vice president and publisher to oversee its weekly Journal-Scope, which has a circulation of 100,000. Huheey had been director of operations for the American Meat Institute.