Daniel Gale Sotheby's International Realty provides exceptional Long Island realty services throughout Nassau and Suffolk Counties. The agency was founded by Daniel Gale in 1922, growing since then to encompass more than 600 agents, staff members and managers. The Sag Harbor office handles many of the beautiful Hamptons mansions located on the waterfront. To schedule an appointment to buy or sell a home, call the office at the number listed.