Andy is a founding chair of the firm's Appellate Practice, an interdisciplinary, cross- practice group of attorneys, dealing with complex appellate strategy at all levels and across industries. He focuses his practice on appeals and complex motions, and he has represented corporate and individual clients in matters as diverse as white-collar criminal prosecutions, environmental enforcement actions, trade secret and other employment litigation, antitrust lawsuits, and internal and external investigations by agencies of both state and federal governments as well as in a wide range of business and commercial disputes.
He has participated in the firm’s pro bono efforts, representing indigent clients in criminal appeals and in immigration proceedings at both the administrative and appellate levels, and is a member of the team of Mintz lawyers that has assisted in legal efforts supporting the reconstruction of Mississippi’s Gulf Coast after Hurricane Katrina.
In addition to his practice at Mintz, Andy was staff counsel to the US Court of Appeals for the First Circuit from 1990 to 1993, where he drafted more than 100 per curiam opinions of the court, and worked as in-house litigation counsel to a major financial services firm in Boston from 1999 to 2000.
He has taught both Legal Research and Writing (at Boston University School of Law) and Law and Ethics of Lawyering (at New England School of Law).
Before law school, Andy worked in New York as a magazine editor.
- Obtained a decision by the Connecticut Supreme Court that reversed an injunction and a seven-figure judgment against our client on trade secret and unfair competition claims.
- Represented the appellant in this case concerning tax liabilities relating to escrow release contracts arising out of the settlements of class action tobacco litigation.
- Represented a Canadian insurance company in its reinsurance contract dispute with an American insurance company. The US Court of Appeals for the First Circuit affirmed the District of Massachusetts’s award of summary judgment to our client.
August 22, 2023 | Article
January 3, 2022 | Article
News & Press
May 22, 2020
The first-of-its-kind class action lawsuit, Pereira Brito v. Barr, was filed in June on behalf of immigrants who were jailed due to flawed detention hearings in which the detainee was required to bear the burden of proof as to not being a flight risk or a danger to the community. The latest ruling holds that the class of immigrants are entitled to bond hearings at which the government bears the burden of justifying an immigrant’s detention, and at which the immigration court must consider someone’s ability to pay when setting a bond amount.
The Mintz pro bono team representing the plaintiffs in this case includes Members Susan Finegan and Susan Cohen, Special Counsel Andrew Nathanson, and Associates Mathilda McGee-Tubb, Jennifer Mather McCarthy, and Ryan Dougherty.
November 27, 2019
The Mintz team representing the Wychmere Beach Club includes Mintz Member and Chair of the firm's Environmental Law Practice Jeffrey R. Porter, and Co-Chairs of the firm's Appellate Practice Andrew N. Nathanson (Special Counsel) and Emily Kanstroom Musgrave (Member).
November 6, 2019
August 6, 2019
Recognition & Awards
- Adams Pro Bono Publico Award, Massachusetts Supreme Judicial Court (2011)
- Member, First Circuit Criminal Justice Act Panel