• Tom Flexner, a former vice chairman of Bear Stearns who joined Citigroup in April of 2008 to oversee its global real estate investment banking business, has closed on the sale of his four-story townhouse at 136 East 80th Street. The three-bedroom home, which Flexner first listed for $12 million last July with…

• Andrew Sasson, the nightlife entrepreneur who used to live in NYC but now operates the Light Group from Las Vegas, has put his Hawaii mansion (left) on the market for $21 million. The 8,000-square-foot, eight-bedroom home comes with a pool and "party-friendly, tree-lined patio," just as you'd expect it would. [WSJ]
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