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Cleveland Cavaliers billionaire owner runs more than 100 companies

Dan Gilbert runs an empire. He makes many of his public appearances as the billionaire owner of the NBA's Cleveland Cavaliers, but he's also the chairman and founder of Rock Ventures, his holding company for over 100 businesses, including the Cavs, the real-estate company Bedrock that's transforming downtown Detroit, and the company that first brought him major success, the mortgage lender Quicken Loans.