SCHAUMBURG, ILL. — Retail Properties of America Inc. (NYSE: RPAI) has sold Schaumburg Towers in suburban Chicago for $86.6 million. The property was the company’s one remaining office complex. American Landmark Properties purchased the 882,071-square-foot asset, which spans two buildings. The property is currently 48 percent leased. Pearlmark originated a $14.5 million mezzanine loan investment for the acquisition. As of March 31, Retail Properties of America owns 106 retail properties spanning 19.5 million square feet.