By Richard MizeReal estate editor rmize@oklahoman.comPrice Edwards & Co. debuted a new annual report Friday to help apartment investors, operators and others judge property performance: a multifamily expense survey. The firm’s multifamily investment team — brokers David Dirkschneider, team leader, and Michael Massad — surveyed 122 apartment properties comprising 16,000 units to create a basis for considering operating data. The survey represents a fraction of the approximately 90,000 apartment units in the metro area, about 18 percent, but Dirkschneider said “the average expense information and trends are usually consistent with those experienced across the market.” Combined with Price Edwards’ annual multifamily market survey, he said, the firm’s research yields “a comprehensive market overview analyzing the current state of the market in terms of overall rents, occupancies, sales, construction and now operating data.” Both surveys, presented Friday at the Renaissance Waterford Hotel, are available at www.PRead more on NewsOK.com