IGOR OLENICOFF

$4.3 BILLION  SELF-MADE SCORE: ) SOURCE: REAL ESTATE AGE: 77 RESIDENCE: LIGHTHOUSE POINT, FL

PHILANTHROPY SCORE:

The Russian immigrant got his first job after college as an analyst for Shell Oil and moonlighted as a college math teacher. Today his Olen Properties owns 8.1 million square feet of office space and 15,662 apartments.