Langsam Prop Ser Corp

Langsam Prop Ser Corp is a poorly regarded corporate owner. Across their buildings, tenants rate them 2.7/5 across 55 reviews, with 22% recommending their buildings and 20% approving of them as an owner or associate. Their portfolio records 245 evictions, 3694 open violations, and 423 litigation cases. Data last updated September 3, 2026. Across South Harlem, Washington Heights, Morrisania, Bedford Park, Concourse, Lenox Hill, Woodstock, and Manhattanville in Manhattan, the Langsam Prop Ser Corp is a corporate owner associated with 73 buildings and 2,219 units. The portfolio spans multiple neighborhoods across Manhattan, The Bronx, Queens, and Brooklyn. The buildings are primarily mid-rise, reflecting a construction range that spans from the 1900s to the 2010s. A majority of the associated buildings have rent-stabilized apartments. Renters can review each building's ratings, reviews, and public records on its own page.