• Hedge funder Steve Stuart, who left Fortress Investment Group in 2007 to found his own firm, has finally found a buyer for his 35th floor apartment at the Park Laurel on West 63rd Street. The four-bedroom condo, which Stuart bought for $5.4 million in 2004 and put on the market for $10.8 million in October 2008, sold this week to an unidentified buyer for $7.4 million. [Cityfile, Corcoran]
• Prolific real estate investor Michael Hirtenstein is the mystery buyer who has agreed to purchase financier Armon Bar-Tur's townhouse at 92 Charles Street. Hirtenstein picked up the four-bedroom home, which was most recently listed for $14.95 million, for "about $13.5 million." [NYP]
• Longtime Dakota residents Connie Chung and Maury Povich are preparing to leave New York. The couple has gone into contract to buy a 12,500-square-foot home in Washington, DC for $8.98 million, although Chung says they're not planning on moving into the new home until 2010 or 2011. [WSJ]

• 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 broker Kirk Henckels, and which went into contract to sell in May, sold to one Regan Fitzpatrick for $8.3 million. [Cityfile]
• Real estate investor Michael Hirtenstein has paid $16.8 million for five units on three floors of the Enrique Norten-designed One York, which he's planning to combine and use as a place to host "philanthropic events." [NYP]

• Alec Baldwin has put his longtime co-op in the Eldorado on Central Park West on the market for $8.9 million. He's reportedly thinking about trading it in for a four-bedroom apartment at the Dakota, which has been reduced from $24 million to $12.5 million over the past year. [NYP]
• Former GE CEO Jack Welch is in contract to buy a three-bedroom pad at One Beacon Court that's next door to the condo he already owns. The 2,669-square-foot space was most recently listed for $8.995 million. [NYP, BHS]
• New York Times columnist Paul Krugman and his wife, Robin Wells, have paid $1.7 million for former Times reporter Joseph B. Treaster's three-bedroom co-op at 110 Riverside Drive. Meanwhile, the couple is currently in contract to sell their former apartment, a one-bedroom at 304 West 89th Street that was most recently listed for $599,000. [NYO, Corcoran]