NET WORTH: $1.7 billionAGE: 73RESIDENCE: Beverly HillsSOURCE OF WEALTH: Inheritance, real estateLAST YEAR: $1.7 billionCHANGE: 0%THE MONEY: Guerin’s late father, Nathan Shapell, left his daughter a 43% stake in homebuilding company Shapell Industries Inc. when he died in 2007. Shapell founded the company in 1955 with his brother, David Shapell, and brother-in-law, Max Webb. In 2013, Shapell Industries was purchased by Pennsylvania-based building company Toll Brothers Inc. for $1.6 billion. Guerin also has extensive commercial real estate holdings throughout California.THE BUZZ: Guerin and her husband, Paul Guerin, accepted a National Leadership Award from the United States Holocaust Museum when her parents received a posthumous tribute from the institution a few years back. She was previously the chairwoman of the Cedars-Sinai Health System board and president of its Women’s Guild. She has donated millions of dollars to the hospital. Guerin has also produced theatrical versions of “Leap of Faith” and “Amadeus.” In 2013, the Guerin Family Pavilion opened at the Skirball Cultural Center.