Patrick Moore

M. Patrick Moore Jr.


  • 617-557-9715
  • 617-227-0781
  • 75 State Street
  • Boston, MA 02109

M. Patrick Moore Jr.


  • 617-557-9715
  • 617-227-0781
  • 75 State Street
  • Boston, MA 02109

Practice Focus

Pat Moore concentrates his practice in complex business, administrative, land use, and appellate litigation. A former attorney in the White House and Massachusetts Governor’s Office, Pat is an experienced advocate and counselor on sensitive issues of public importance.

Pat has represented state agencies and those challenging laws, regulations, and government action. In addition, he counsels public officials, candidates for office, and non-profit entities on ethics, election law, campaign finance issues and Massachusetts ballot initiatives.

Pat has litigated at each level of the Massachusetts court system and in federal district and appellate courts throughout the country. Pat also represents clients before regulatory agencies and professional licensure boards.

Before joining Hemenway & Barnes, Pat was an Associate Counsel and Advisor for Presidential Personnel at the White House in the administration of President Barack Obama. There, he vetted prospective Presidential nominees for executive, judicial, and independent agency positions; evaluated clemency petitions; addressed Congressional oversight requests; and analyzed innumerable legal issues inherent in the administration of the federal government.

Prior to the White House, Pat was a Deputy Counsel in the Office of the Governor of the Commonwealth of Massachusetts, under Governor Deval L. Patrick and Governor Charles D. Baker. In that capacity, Pat provided counsel on the many constitutional, legislative, and regulatory issues that affect (or can be affected by) the Office of the Governor.

At the outset of his legal career, Pat practiced for several years at a large Boston firm, a period that included a fellowship in the Government Bureau of the Massachusetts Attorney General’s Office. He served as a law clerk to the Honorable Maryanne Trump Barry of the U.S. Court of Appeals for the Third Circuit and to the Honorable Robert J. Cordy of the Supreme Judicial Court of Massachusetts.

Representative Clients

  • Represents for-profit and non-profit entities and individuals in the Commonwealth’s trial and appellate courts and administrative agencies (e.g., the Appellate Tax Board)
  • Counsels government officials, candidates for office, and political advocacy and social welfare organizations on ethics, election law, and campaign finance issues, at the federal and state levels
  • Successfully handled appellate litigation on behalf of state and municipal clients, including the Martha’s Vineyard Land Bank and the Town of Falmouth
  • Crafted and submitted appellate and amicus curiae briefs to various federal circuit courts and the Supreme Judicial Court on behalf of prominent nonprofits, industry associations and government officials on a variety of topics including the First and Second Amendments
  • With the Attorney General’s Office, successfully represented the Governor of the Commonwealth in the Supreme Judicial Court on an action brought by a former judicial nominee
  • Advised the Governor in connection with the filing of legislation to create the Commonwealth’s Transportation Network Company Division, which licenses and oversees companies such as Uber and Lyft
  • Drafted an amicus brief filed in the Supreme Court of the United States on behalf of former U.S. Attorney General Richard Thornburgh, former Solicitor General Drew Days III, and other former Justice Department officials in support of the Voting Rights Act


  • Named to the 2019 Lawyers of the Year list by Massachusetts Lawyers Weekly 
  • Named to the Massachusetts Super Lawyers Rising Stars List, 2017-2020

Activities and Publications

  • Co-Chair of the Boston Bar Association's Government Lawyers Forum
  • Co-Chair of the Boston Bar Association 2019 Annual Meeting
  • Member, Board of Editors, Massachusetts Law Review
  • Adjunct Professor at Boston College Law School
    • Conflict of Laws (2010 - 2014)
    • Administrative Law (2017)
    • Lawyering for the Elected Branches (2018)
  • Pat speaks and writes frequently on administrative law, appellate litigation and election law issues, including:

Community Involvement

  • Member, Advisory Board, Rappaport Center for Law and Public Policy, Boston College Law School
  • Member, Board of Directors, Common Cause of Massachusetts

Patrick Moore’s Comment on Litigation and Administrative Law

“Effective advocacy begins with a full understanding of a client’s interests and objectives. On that foundation, a thoughtful, persuasive approach – consistent with the client’s broader persona – can be custom built for the circumstances."

Patrick Moore

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