Astor Home Back on the Market, Now Just $29 Million

• Brooke Astor's former duplex at 778 Park has returned to the market, two weeks after the Corcoran's Leighton Candler took down the listing. Stribling's Kirk Henckels is now offering the sprawling co-op for $29 million, which is $17 million less than it was first offered for when it hit the market last year.…