HAVERHILL, MASS. — Yannios Real Estate Investment Sales has brokered the $3.5 million sale of Highland Maple Apartments, a 39-unit apartment community built in 1850. The property, which comprises two three-story buildings, is located at 3-5 Maple Ave. in Haverhill, 35 miles north of Boston. Yannios Real Estate represented the seller, 3-5 Maple Ave. LLC, in the transaction. The buyer was Kuma Realty.