Real estate pioneer Barbara Corcoran says the most successful people she knows all have one thing in common. Barbara Corcoran famously sold the real estate company she founded for $66 million in 2001. Related: Barbara Corcoran Did 'Crazy Things' to Retain Employees, From Hot Air Balloon Rides to a Free Bentley: 'We Had No Turnover'"If you want to be rich, follow these rules," the post begins. Some rules, Corcoran has talked about before, such as not hiring "fancy degrees" and opting for hustle and attitude, instead. Related: Barbara Corcoran Needed to Make Job Cuts.