Roger Staubach — A beloved Hall of Fame quarterback for the Dallas Cowboys in the 1970s, Staubach founded a real estate company that now has 60 offices in the U.S., Canada and Mexico, which he sold for $613 million.

Roger Staubach — A beloved Hall of Fame quarterback for the Dallas Cowboys in the 1970s, Staubach founded a real estate company that now has 60 offices in the U.S., Canada and Mexico, which he sold for $613 million.