The priciest home to go into contract last week was the 10th and 11th floors at Naftali Group’s Benson condo at 1045 Madison Avenue, a 15-unit building that’s seen a string of big-ticket contracts of late. The unit measures 8,386 square feet and the buyer will pay the sponsor for the additional construction needed to create the duplex, the report said. Bo Poulsen of Brown Harris Stevens, who represented the buyer, said his clients never visited the building and instead did the deal virtually. “We looked on and off for years,” he told Olshan. “The apartment checked off the right boxes.”