John Mustac

John Mustac is a well-regarded and reliable site manager. Across their buildings, tenants rate them 4.1/5 across 9 reviews, with 67% recommending their buildings and 67% approving of them as an owner or associate. Their portfolio records 5 evictions, 5 open violations, and 5 litigation cases. Data last updated October 25, 2026. John Mustac is a site manager associated with 10 buildings and 157 units across Astoria and Forest Hills in Queens. The portfolio spans multiple neighborhoods across Queens. The buildings were constructed over a wide range of years, spanning from the 1920s to the 2000s. The buildings are mostly low-rise. About half of the associated buildings have rent-stabilized apartments. Individual building ratings, tenant reviews, and public records are on the associated building pages.