Barbara Corcoran founded the Corcoran Group and sold it in 2001 for $66 million. Corcoran says she lost tens of thousands on a “genius” idea that failed but ended up being successful years later. “The ...

Many entrepreneurs have a deal they probably wish they didn't make, or, perhaps worse, one that got away. And real estate pioneer and longtime "Shark Tank" investor Barbara Corcoran remembers hers ...