California property tycoon suing UBS and others for $500 million, alleging the banks broke promise to invest his cash in only conservative securities. Pleaded guilty to tax felony 2007 for stashing more than $350 million in Europe; paid $52 million in fines, sentenced to 2 years probation and 120 hours community service. Today his Olen Properties owns more than 6.4 million square feet of office space, nearly 12,000 residential units in Las Vegas, Arizona, Florida. Opened restaurant in honor of son Andrei, who died in a 2005 car accident. Daughter Natalia insisted on green food. Olenicoff: "I'll have to find an organic vodka."