A view outside Sotheby's in New York City. Photo by Noam Galai/Getty Images. Sotheby’s has come out swinging against New York Attorney General Letitia James after her office alleged that the auction house bilked the public out of huge tax revenues in a lawsuit filed in early November. The AG alleged that a collector had evaded taxes on $27 million worth of art purchases—and that Sotheby’s helped them do it. On Friday, Sotheby’s filed a 27-page memo in New York State Supreme Court asking a judge to dismiss the case. Attorneys for Sotheby’s cited several reasons, including that the a...