Isaac Gutman - NY Based Real Developer Isaac Gutman Brooklyn native and world renown real estate developer. Isaac Gutman has spent most of his adult life building and redeveloping properties throughout NYC, Bronx and Brooklyn his successful career includes ground up development to value add and live work style redevelopment opportunities with decades or experience in retail, industrial, and multifamily properties. Much has been written about Isaac and Ryer Real Estate Partners and his many accomplishments, his career and many accomplishments have been featured in news articles and interviews. Isaac Gutman is also well-known for his many acts of philanthropy and community leadership. He contributes heavily to a number of local and global charitable institutions and subsidizes community health pantry's and food programs.