Metropolitan New York Area Real Estate Homes for Sale. OneKey™ MLS offers accurate listings straight from the New York Metropolitan area''s largest REALTOR®-run MLS, unlike other third-party portals.. homes for sale Long Island, Long Island real estate, homes for sale Hudson Valley, Hudson Valley real estate, Manhattan real estate, houses for sale Long Island, houses for sale Hudson Valley, houses for sale Manhattan, homes for sale near me, homes for sale Nassau county, homes for sale Suffolk county, homes for sale Westchester county, homes for sale Sullivan county, homes for sale Putnam county, homes for sale Orange County, homes for sale Bronx borough, homes for sale Dutchess county, homes for sale Rockland county, homes for sale Staten Island borough, homes for sale great school district, homes for sale good school district, what’s my home worth, buy rent sell Long Island, Hudson Valley, Manhattan