Susan Alfond, Maine
Alfond can thank the shoe industry for her $1.7 billion net worth. Her father founded Dexter Shoe Co. six decades ago, and in 1993 it was sold to Warren Buffett's Berkshire Hathaway for $420 million. Shares are now worth billions of dollars.
Ted Lerner, Maryland
The real estate tycoon has racked up a net worth of $5.1 billion in the state of Maryland. He owns 20 million square feet of commercial and retail space primarily in D.C. He also borrowed $250 from his wife to start the company in 1952, where he first sold homes for developers.
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