Marvin Paul Kosow

Marvin Paul Kosow passed away at JFK Hospital in Atlantis, Florida on Wednesday, August 28, 2024. He is survived by his loving wife Nancy (Schwartz); children Andrew, Keith (Dolly), Robyn, Scott, Susan (John) and Rob. He was the loving brother of Jeffrey, Robert, and Gerald. Adoring papa of Haley, Olivia, Campbell, Jordan, Aidan, Beckett and Ari. Marvin was born in Brookline, Massachusetts to Joseph and Barbara (Bond) Kosow and stepson to Ben Sack, who treated Marvin as his son. Marvin attended Belmont Hill School and then earned a Bachelor degree in Business from the University of Miami. He also attended Boston University Law School. Marvin was a success in the real estate industry. He started working in the mortgage business for his father, but later built his own residential and commercial real estate firm. Kosow Construction Corp. built numerous apartment complexes in Connecticut and Massachusetts, as well as owning and managing several shopping centers throughout the United States. He was known to be a very kind and generous man to his family, friends, and business associates. He loved playing golf with his wife Nancy on Sundays, as well as with his Bogey Boys at High Ridge Country Club in Palm Beach. He was also a member of Pine Brook Country Club in Weston. Marvin previously lived for many years in Newton, MA. A private funeral will take place in Sharon, MA. Shiva at Marvin and Nancy’s home on Sunday, 9/1 from 2-5pm and Monday, 9/2 from 1-6pm. In lieu of flowers, please make a donation in Marvin’s memory to the National Kidney Foundation.