Ditmars Real Estate Consultant, Inc. (Est. 1987), successor to JSM Associates (Est. 1961), was founded by Stephen Katos, Michael Katos and George Kondos for the purchasing and selling residential apartment buildings in the New York and New Jersey Metropolitan areas. In the course of three decades of uninterrupted growth, they have developed and expanded into broad range of real estate enterprises, including managing, consulting, brokering and financing.