BRAINTREE, MASS. — NKF Capital Markets has orchestrated the sale of Blue Hills Medical Center in Braintree for $11.5 million. Braintree is 13 miles south of Boston. Located at 340 Wood Road, the 48,617-square-foot Blue Hills Medical Center is 100 percent leased to 14 tenants. The tenant roster includes Milton Pediatrics, MassGeneral Hospital for Children and South Shore Hospital. NKF represented the seller, Jumbo Capital Management, in the transaction. The buyer was Novaya Real Estate Ventures.