NET WORTH: $7.7 billionAGE: 81RESIDENCE: Toluca LakeSOURCE OF WEALTH: Real estateLAST YEAR: $5.6 billionCHANGE: +38%THE MONEY: Roski is the president and chairman of Majestic Realty Co., one of the largest privately held industrial real estate developers in the United States. The company has a portfolio of more than 83 million square feet. Roski’s wealth rose significantly this year due to an increase in the size of Majestic’s portfolio, a jump in the value of industrial properties, especially in Los Angeles, and a boost in the valuations of the Los Angeles Lakers and Los Angeles Kings — Roski has a small stake in both franchises.THE BUZZ: In recent years, Majestic Realty has been expanding its footprint outside of California. It is working on a 30-acre site in Phoenix that will become a 502,000-square-foot speculative industrial building. The company, along with Sunroad Enterprises, is also developing a three-building industrial center in San Diego. In 2016, Roski and his wife, Gayle, gave a $25 million gift to USC to endow an eye institute. In 2017, he was awarded the Circle of Honor Award from the Congressional Medal of Honor Foundation. Roski was an officer in the Marine Corps, where he earned two Purple Hearts.