Steven Moskowitz of Heritage Corp. recently leased 1,400 s/f of retail space at 1387 Washington St. to Weight Loss Solutions for its fourth location. The company combines different disciplines to develop the proper training, exercise and weight loss programs for its clients and replaces Energize Fitness Studio. Other locations include Newtonville and Copley Sq. in Boston. Moskowitz, as exclusive broker, handled the transaction for 1381-1387 Washington Trust I & II and assisted the tenant.