The Montgomery County Board of Realtors reports that residential sales made through its multiple listing service in July were up 38 percent from the month before. (The statistics do not include sales made without real estate agents.) The July sales total of 859 dwellings was down 90 from a year earlier, before mortgage rates began to climb. The units sold in July for a total of $83.7 million, compared with $83 million a year earlier. The average sales price in July rose to $97,400 and the median price was $85,000.

The Shanon & Luchs real estate company announced that it sold a record $62.5 million in residential properties in July in the metropolitan area. Sales director William Ellis said it was an increase of 33 percent over the volume for the same month last year.

Ryan Homes Inc., has promoted Arthur L. Titus to senior vice president of operations in this region. Steven J. Smith, formerly senior vice president of operations in the firm's Pittsburgh headquarters, was promoted to executive vice president of operations for the 10 states where Ryan operates.

Four Northern Virginia students have been awarded scholarships by the Northern Virginia Board of Realtors to help them pursue real estate studies at area colleges. The Ebner Duncan scholarships went to Karin Denault of Vienna, Keith Whited of Alexandria, Vicki Wiggins of Fairfax and Sharon Oakley of Arlington.

Fairhaven, a new "life-care" retirement community being completed on the 300-acre Beasman Fairhaven Farm north of Skyesville, Md., recently accepted its first residents. They pay a one-time accommodation fee that guarantees occupancy in the community for life. They also pay a monthly charge for meals and services. Information is available by calling (301) 727-3738 or (301) 795-8800.

The six-story Fairfax Building at 10555 Main St., Fairfax, was sold recently for $2.4 million to 13th and L Associates. Dorothy K. Winston & Co. was the broker.

Developers Stuart Bernstein and John Mason reported that all of the one-bedroom apartments have been sold in Carlyle House, an Arlington high-rise that recently was converted to cooperative ownership. Remaining two-and three-bedroom units are priced from $91,000 and $116,000.

J. Randolph Dunnavant has joined H. G. Smith Co. as vice president and insurance consultant. He was an insurance specialist with the Washington office of Marsh & McLennan for 24 years.

Jane T. Bowers has been named sales manager for the Klingbeil Organization, which is active in condominium development in this area. Bowers was a sales representative for Klingbeil at the Cardinal Forest condominium development in Springfield and recently worked at the Arlington condominium in Arlington.

Nathan R. Isikoff, senior vice president of the Carey Winston Co., has been elected to the board of directors of the Society of Industrial Realtors, which includes industrial real estate brokers throughout the United States and Canada.

Benjamin C. Trotter III has been named assistant vice president of the brokerage division of the Washington office of Spaulding & Slye Corp.

DEAR Realty has become the first District firm to join the Realty World franchise system, which now has 50 members offices in this region.

A course on investment real estate will be given, beginning Aug. 26, at the Annandale campus of Northern Virginia Community College. Barry Schuttler will teach the evening course, which will continue through Sept. 23. Information is available by calling 323-3168.

Barbara Ambrose has been promoted to sales manager of the Springfield office of the House of Brokers Real Estate Corp. She had been director of training for the firm.

Ronald D. Boykin has been named director of corporate relocation services for Panorama Real Estate Inc. He was manager of a Panorama office in Alexandria.