Daniel Gilbert

Dan Gilbert cofounded what would become Quicken Loans, the largest online mortgage lender, in 1985.He sold it to Intuit for $532 million in 1999, but bought it back 3 years later for $64 million.He has invested $2.5 billion to purchase and rehab a swath of buildings in downtown Detroit.He owns the NBA's Cleveland Cavaliers, and wants to bring major league soccer to downtown Detroit.