Grant Management Services

Grant Management Services is a well-regarded and reliable corporate owner. Across their buildings, tenants rate them 4.0/5 across 3 reviews, with 100% recommending their buildings and 67% approving of them as an owner or associate. Their portfolio records 6 evictions, 172 open violations, and 7 litigation cases. Data last updated September 7, 2026. Associated with 26 buildings and 205 units across Queens, Brooklyn, and Staten Island, Grant Management Services is a corporate owner responsible for a portfolio that spans construction eras from the 1940s to the 2000s, reflecting multiple generations of development. The portfolio spans multiple neighborhoods across these boroughs, including Ozone Park, Little Neck, Flushing, East Flatbush, and Great Kills. The buildings are mostly low-rise. About 8% of the associated buildings have rent-stabilized apartments.