Kristin McCann, director at Sinvin Realty, LLC, has helped raise the bar for retail deals downtown since 2005. This year, her Steve Madden lease at 355 Bleecker Street is keeping the known fashion thoroughfare hot. Her deals at 196 and 198 Spring Street helped to redefine an area formerly dominated by restaurants; they were leased to trendy fashion retailers, Z’Baby Co., and Iradj Moini. She most recently closed a 15-year lease at 10 Downing Street to top restaurateur Joel Michel and his partners. Prior to joining Sinvin, McCann was involved in high-end art deals at Sotheby’s, which provided experience apropos to NYC real estate: matching buyers and sellers.