John Warren

John Warren is a poorly regarded officer. Across their buildings, tenants rate them 1.3/5 across 1 review, with 0% recommending their buildings and 0% approving of them as an owner or associate. Their portfolio records 9 evictions, 41 open violations, and 8 litigation cases. Data last updated July 31, 2026. John Warren is an officer associated with 2 buildings and 39 units across East Harlem in Manhattan. The portfolio spans multiple neighborhoods across Manhattan. The buildings were built primarily in the 1920s to the 1930s, reflecting an earlier era of construction. The buildings are mostly mid-rise. All of the associated buildings have rent-stabilized apartments.