An unsigned advance conflict waiver is enforceable, according to a New York appellate court, allowing a law firm to continue to represent a large national retailer in a dispute with another large national retailer over the sale of Martha Stewart products. In Macy’s Inc. v. J.C. Penney Corp., the Supreme Court of the State of New York, Appellate Division, First Department affirmed the trial judge’s denial of J.C. Penney’s motion to disqualify the law firm from representing Macy’s due to a conflict....