If you have $138 million to spare, one former Manhattan lawyer turned investor has a two-city penthouse package he’d like you to consider.
William Duker has quietly put two trophy apartments on the market at once: a glass-walled showpiece crowning Tribeca’s Sky Lofts and a three-level corner triplex at Apogee South Beach. Together, the pair are asking roughly $138 million. The listings, which went live this month, reunite properties Duker has held through relistings and long build-outs. He keeps a low public profile, but he is well known in yachting and tech circles.
Tribeca glass aerie returns to the market
In Tribeca, the Sky Lofts penthouse at 145 Hudson Street is back, this time with a $59.5 million price tag. The spread offers about 7,500 square feet of interior living space and a roughly 4,500-square-foot wraparound terrace, according to StreetEasy.
The Modlin Group and Compass are co-listing the penthouse, which marketing materials describe as a multi-level glasshouse with four bedrooms, four-and-a-half baths and museum-quality insulated glazing, per Realtor.com.
South Beach stunner piles on the rooftop toys
Down in Miami Beach, the corner penthouse at Apogee (Unit PH 2204) is aiming even higher. The triplex carries a $78 million asking price and spans multiple floors with a private rooftop pool, open-air theater, spa and expansive terraces, per the MLS marketing shown on Homes.com.
The unit is co-listed by Dora Puig of Luxe Living Realty and Carlo Gambino of Douglas Elliman. Public deed records show the seller bought the shell space in 2008 for about $16.5 million, according to listing information compiled on Redfin.
From federal case to tech exit
Duker, identified as the seller on the listings, pleaded guilty in 1997 to charges tied to overbilling federal agencies and was sentenced to 33 months in prison, according to reporting by The Real Deal.
After serving his sentence, he co-founded Amici, an e-discovery firm that was acquired by Xerox in 2006 for a reported nine-figure sum, per BizJournals. In the yachting world, Duker is also known as the original patron of the Perini Navi sailing yacht Sybaris, which went on to win industry awards, according to Perini Navi.
Reading the ultra-luxury tea leaves
The twin relistings land in a moment that is unusually friendly to top-shelf sellers: demand for trophy properties in Miami is running hot, while New York’s supply at the very high end remains tight. Homes.com notes a sharp uptick in $10 million-plus sales in Miami-Dade through mid-2026.
That backdrop helps explain why a rare, turnkey Tribeca penthouse and a sprawling Apogee triplex are being floated at the top end of their respective markets, according to listing pages and brokers.
Seller looks to simplify
Duker has told listing outlets he is streamlining his life and trimming back. In comments picked up by the New York Post, he said that at 72 he is “just beginning to organize this next phase” and does not need “two apartments of this size.”
At this price level, brokers say any deal is likely to unfold slowly, with marketing measured in months rather than weeks. For the right buyer, though, the chance to own matching sky palaces in Tribeca and South Beach may prove hard to resist.
