Institutional Property Advisors, a division of Marcus & Millichap, has represented Weidner Apartment Homes in the $37.2 million sale of the 258-unit Monterra Apartments Homes in Phoenix. According to Maricopa county records, the buyer, Eaton Vance Investment Managers, has financed the acquisition through a $22.4 million, seven-year Freddie Mac loan originated by Walker & Dunlop.