1.) Aaron and Adam Daniels’ A.D. Real Estate sold two Upper East Side walk-ups for $16 million. The two five-story buildings, at 315 and 317 East 74th Street, span 8,395 and 9,145 square feet respectively and each have 17 residential units. The building at 315 East 74th Street also has two commercial units. The buyers are a group of investors from Great Neck, including Imanuel and Alex Piroozian. A.D. Real Estate, also based in Great Neck, recently bought two buildings from Blackstone Group and Fairstead Capital; an 18-story rental at 312 East 30th Street for $52 million and a 10-story building at 114 East 40th Street for $27.5 million.