David Flaum, owner of the Galleries of Syracuse office complex in Syracuse and a well-known Rochester real estate developer and philanthropist, has died. A statement from his family said Flaum, the founder, chairman and CEO of Flaum Management Co., died Thursday August 20 2020 at the age of 67. Flaum, the son of Holocaust survivors, specialized in buying troubled real estate developments and turning them around. He bought the Galleries in the heart of downtown Syracuse in 1992. The complex opened five years earlier as a combination shopping mall and office building. A 1975 graduate of the Whitman School of Management at Syracuse University, Flaum served on the board of trustees of his alma mater and at the University of Rochester. The David & Ilene Grand Hall at the Whitman School is named after him and his wife. Flaum is survived by his wife, sons Asher and Loren, and daughter Sara Ressler.