Stephen D. Heyman is principal of Sustainable Real Estate Solutions LLC. The firm provides highly personalized and experienced nonprofit and commercial leasing, sales, project management and facilities management solutions. Previously, he managed the Trinity Church Wall Street six million square foot commercial real estate portfolio. Mr. Heyman succeeded in converting Trinity's industrial properties into modern office buildings that comprise Manhattan’s newest business neighborhood. While at Goddard Riverside Community Center, he managed the “gut” rehabilitation of a 100-year old 200-unit single room occupancy hotel for the formerly homeless, while keeping it two-thirds occupied at all times. At Studley, Inc., Mr. Heyman directed the National Investment Sales Department and a joint real estate venture with Salomon Brothers. He served as director of the asset services department of the Galbreath Company. At Helmsley-Spear, Inc., Mr. Heyman served as general manager and director of leasing for the three million square foot office tower at One Penn Plaza, while managing a Helmsley-Spear branch brokerage office.