The founder of Weissberg Investment Corp. passed away in May 2021 at his home in Annapolis of complications from Covid-19, daughter Nina Weissberg confirmed. Weissberg, born in New York but raised in D.C., launched his commercial real estate career in 1953 after returning from service in the U.S. Army, becoming one of the first developers behind Rosslyn's evolution. Marvin Weissberg is a retired real estate developer and former member of the Board of Directors for the National Democratic Institute, a member of the Urban Land Institute’s International Counsel, the World Affairs Counsel, the InterAmerican Dialogue, and the Roosevelt Institute, among other international organizations. He is also active on the boards of several theaters in Washington. He founded the Weissberg Foundation in 1988 and served as chairman, along with children Nina and Wesley Weissberg and partner Judith Morris. That nonprofit doles out almost $1.4 million a year in contributions, gifts and grants, according to its latest financial statements. The majority of his estate is being left to the Weissberg Foundation, Nina Weissberg said.