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.
  • 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.
  • In the first year of joining the firm, Pat drafted and filed four briefs in the Supreme Judicial Court and three in the Massachusetts Court of Appeals.
  • Advised the Executive Branch 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.
  • While in the Governor’s Office, drafted, revised, and reviewed countless regulations, and particularly those emanating from the Executive Office of Housing and Economic Development and the Executive Office of Administration and Finance.
  • 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 Massachusetts Super Lawyers Rising Stars List, 2017-2018

Activities and Publications

  • Co-Chair of the Boston Bar Association's Government Lawyers Forum.
    • Member, Board of Editors, Massachusetts Law Review
  • Member, Advisory Board, Rappaport Center for Law and Public Policy, Boston College Law School
  • Adjunct Professor at Boston College Law School:
    • Conflict of Laws (2010 - 2014)
    • Administrative Law (2017)
    • Lawyering for the Elected Branches (2018)
  • Author of “Regulations & Rulemaking,” a chapter in a 2015 Massachusetts administrative law treatise entitled LexisNexis Massachusetts Administrative Law Manual
  • Co-author of “Executive Order: Strike of a Pen, Law of the Land?,” published in the Boston Bar Journal
  • Co-author, “Supporting or Opposing Ballot Questions: Beware Campaign Finance Rules,” Massachusetts Nonprofit Network Newsletter (June 11, 2018)

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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