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Isaac Kassirer Sued for Breach of Contract by Partner

Isaac Kassirer Faces Loss of $110M Rent-stabilized Portfolio

Emerald Equities Defaults on $100M Rent-Stabilized Portfolio

Emerald Equity Group's Isaac Kassirer with 350 Manhattan Avenue (Emerald Equity Group, Google Map, Getty)

(iStock/Illustration by Alexis Manrodt for The Real Deal)

Emerald Equity Group's Isaac Kassirer and231 East 117th Street (Google Maps)

Emerald Equity’s Isaac Kassirer  with 110 West 116th Street and 120 West 116th Street (Google Maps; Emerald)

 Isaac Kassirer with the apartments at East 117th Street (Credit: iStock, Google Maps)

Isaac Kassirer with 231 East 117th Street and Mayor Bill de Blasio (inset) (Credit: Getty Images, iStock, Google Maps)

Emerald Equities' Isaac Kassirer and 244 East 117th Street (Credit: Google Maps, Emerald Equities)