Two large properties with development rights have hit the market on Long Island’s North Fork, where homes are still in extremely short supply after a more than two-year run on the market. Former Houston Rockets owner Leslie Alexander is looking to unload his parcels at 1117 Main Road in Riverhead and 2045 Sound Avenue in Mattituck for a combined $6 million, The Real Deal has learned. Alexander’s 24-acre property at 1117 Main Road is listed