Black Diamond Equity Management Inc

Black Diamond Equity Management Inc is a modestly rated but responsible corporate owner. Across their buildings, tenants rate them 3.0/5 across 18 reviews, with 50% recommending their buildings and 62% approving of them as an owner or associate. Their portfolio records 2 evictions, 37 open violations, and 2 litigation cases. Data last updated September 11, 2026. Black Diamond Equity Management INC is a corporate owner associated with 11 buildings and 209 units across Kips Bay, West Village, Yorkville, Sutton Place, and Greenwich Village in Manhattan. The portfolio spans multiple neighborhoods across Manhattan. The buildings were constructed over a wide range of years, with construction spanning from the 1820s to the 1980s, reflecting multiple generations of development. The portfolio features primarily mid-rise buildings. About a quarter of the associated buildings have rent-stabilized apartments. Building-level ratings, reviews, and open-data records are available on the associated building pages.