CHICAGO — Interra Realty has brokered the sale of a multifamily property in Chicago’s Hyde Park for $6.5 million. The 75-unit property is located at 5736 S. Stony Island Ave. The building, which borders the University of Chicago, features 43 studio apartments, 29 one-bedroom and three two-bedroom units. Craig Martin of Interra represented both the buyer and seller. The purchaser was a privately held national real estate investment firm and the seller was a private owner.