Magdalena Kosz

Magdalena Kosz is a mixed-profile head officer. Across their buildings, tenants rate them 2.8/5 across 7 reviews, with 29% recommending their buildings and 29% approving of them as an owner or associate. Their portfolio records 1 eviction, 72 open violations, and 2 litigation cases. Data last updated July 27, 2026. Associated with 7 buildings and 85 units across Manhattan, Magdalena Kosz is a Head Officer responsible for a portfolio that spans construction eras from the 1880s to the 1900s, reflecting multiple generations of development. The portfolio is concentrated in the Upper West Side neighborhood in Manhattan. The buildings are primarily mid-rise. A majority have rent-stabilized apartments. Prospective renters can find building-level ratings, reviews, and open-data records on the associated building pages.