• The mystery buyer who paid $30 million for a penthouse at 145 Hudson Street—and who the New York Times described as "not an investment banker or the manager of a hedge fund"—is none other than convicted felon William Duker, the attorney (and now private investor) who was sentenced to 33 months in prison in 1997 for falsely inflating legal bills to the federal government. [Real Deal]
• William and Pat Buckley's duplex at 778 Park, which was put on the market for $24.5 million last June, has been taken off the market. [NYM]
• Broadway producer Anita Waxman and her husband, Tom Dokton, the inventor of the ultrasound, have lowered the price of their 39-acre estate in Connecticut. It's now listed for $3.95 million. [WSJ]
• Former U.S. Rep. Christopher Shays—who is reportedly being considered by President Obama to head the Peace Corps—says he'll be putting his waterfront home in Connecticut on the market "within a week." [GT]

• Morgan Stanley exec Guy Metcalfe is finally on his way to unloading his five-bedroom apartment at 15 CPW, which he bought for $9.35 million in October and quickly re-listed for $16.5 million two-weeks later. After cutting the price to $13.75 million and then dropping it again to $12.5 million, he is now in contract to sell the 3,822-square-foot spread. [Cityfile, Corcoran]
• Sheikh Abdul Aziz al-Thani of Qatar has lowered the price of his three-bedroom apartment at Trump Park Avenue, which he bought for $6.1 million in 2005 and listed for $14 million late last year. It's now on the market for $10 million. [Cityfile, Corcoran]
• It turns out Sting won't be listing his Central Park West duplex for $26 million with Claudine and Raphael De Niro after all. Halstead's Mark Friedman will be handling the honors, and the four-bedroom apartment will be offered for a much more modest $19 million. [NYT]

• Joel Schumacher, the director behind St. Elmo's Fire, The Lost Boys, and Batman Forever, has paid $1.36 million for a 790-square-foot condo at 25 Fifth Avenue. [NYO]