GHISLAIN GOURAIGE

UBS FINANCIAL SERVICES CORAL GABLES, FLORIDA AUM: $1.6 BILLION

A Haitian immigrant, Gouraige was 8 when his family landed in Albany, New York, his parents both professors. After graduating from the University of Pennsylvania and Harvard Law School, he switched from securities law to wealth management. “The biggest mistake we see entrepreneurs making is thinking they can do it all themselves,” says Gouraige, 58. Sometimes, he says, entrepreneurs can be too decisive: They hear a big number and sell a company without thinking through things like noncompete clauses or tax implications. Most regret it.