Gareth is a partner in the Boston office of Morrison Mahoney.  His practice focuses on transportation, employment and labor, municipal liability, premises and products liability, tort and liability defense, education law, civil rights, defamation, and discrimination.  He litigates in Massachusetts State Courts and in Federal Court, and provides labor and employment consultation. He has been with the firm since 1998 and a partner since 2004.

Gareth represents a broad range of clients, including national transportation companies, municipalities, housing authorities, public officials, retailers, and insurance companies. Gareth regularly defends individuals, corporations and municipalities in employment related matters, including claims of discrimination, harassment, wage and hour claims, whistleblower claims, and wrongful discharge claims, before the Massachusetts Commission Against Discrimination (MCAD), the U.S. Equal Employment Opportunity Commission (EEOC), the Massachusetts Department of Labor Relations (DLR), and courts throughout Massachusetts.

Gareth is an MCAD-certified discrimination and harassment investigator.  In this capacity, he conducts investigations on behalf of employers into complaints of discrimination and harassment.  He also is certified by the MCAD in discrimination and harassment prevention training for managers and non-supervisory employees.  He provides discrimination and harassment prevention training to employers.

In labor matters, he represents both public and private organizations in contract negotiations, grievance administration, arbitration, and actions before administrative agencies. Gareth drafts and revises employee handbooks and workplace policies, along with negotiating and drafting non-competition and severance agreements. In addition, he investigates claims of sexual harassment and discrimination for public and private entities. In this role, he makes recommendations regarding appropriate remedial training and action.


  • Successfully tried numerous cases to verdict before juries throughout Massachusetts and in Federal Court, including matters involving wrongful death, catastrophic injuries, traumatic head injuries, discrimination, sexual harassment, whistleblower act violations, product liability, and breach of contract.
  • Wrote appellate briefs and argued appeals before the Massachusetts Appeals Court, the Supreme Judicial Court of Massachusetts, and the United States Court of Appeals for the First Circuit, including N. Am. Site Developers, Inc. v. MRP Site Dev., Inc., 63 Mass. App. Ct. 529 (2005); City Fuel Corp. v. Nat’l Fire Ins. Co., 446 Mass. 638 (2006); Massachusetts Bay Transp. Auth. v. Kinney Parking of Suffolk Cty., Inc., 74 Mass. App. Ct. 1128 (2009); Needleman v. Clancy, 74 Mass. App. Ct. 1119 (2009); Plummer v. Town of Somerset, 601 F.Supp.2d 358 (D.Mass 2009); Chamberlin v. Town of Stoughton, 609 F.3d 10 (1st Cir. 2010); Cohen v. Eagle Tribune Publ’g Co., 79 Mass. App. Ct. 1102 (2011); Pritchard v. Malm, 85 Mass. App. Ct. 1120 (2014); Tobin v. Federal Exp. Corp., 775 F.3d 448 (1st Cir. 2014); Templeton v. Mansfield Pub. Sch., 88 Mass. App. Ct. 1112 (2015); Pierce v. Somerset Sch. Dep’t, 45 N.E.3d 612 (Mass. App. Ct. 2016); Swartz v. Sylvester, 53 F .4th 693, 695 (1st Cir. 2022); Ralph v. Town of Dedham, 102 Mass. App. Ct. 1104, 200 N.E.3d 531 (2022); Eaton v. Town of Townsend, No. 22-1334, 2023 WL 3317986 (1st Cir. May 9, 2023); Mirabella v. Town of Lexington, Massachusetts, 64 F.4th 55 (1st Cir. 2023).
  • Defense verdict for employer in religious discrimination, harassment, and retaliation matter – United States District Court (Boston).
  • Defense verdict in wrongful death action brought by estate of minor arising out of motor vehicle accident – Suffolk Superior Court.
  • Successful verdict for insurance company in product liability action alleging breach of warranty and Chapter 93A violation against dryer manufacturer arising out of a residential fire – United States District Court (Boston).
  • Defense verdict in matter involving amputation of minor plaintiff’s fingers allegedly caused by landowner – Suffolk Superior Court.
  • Defense verdict in wrongful termination/§1983 violation/conspiracy claim against Police Chief and Assistant Police Chief arising out of interrogation of City Solicitor – United States District Court (Boston).

Noteworthy Accomplishments, Honors & Awards

  • Selected to the Massachusetts Super Lawyers magazine list in Civil Litigation: Defense (2017–2020)
  • Massachusetts
  • United States Court of Appeals for the First Circuit
  • United States District Court for the District of Massachusetts
  • ALFA International Transportation Practice Group, Steering Committee
  • National Center for State Courts, Lawyers Committee
  • Massachusetts Bar Association
  • Risk and Insurance Management Society Massachusetts Chapter
  • B.A. — Fordham University
  • J.D., cum laude — New England Law | Boston
  • Panel Moderator, “Navigating Discrimination and Harassment Claims Brought by a Current Employee in the #MeToo Era,” 2019 Massachusetts Lawyers Weekly Crisis Management Conference, October 24, 2019
  • Panel Moderator, “Managing a Harassment and Discrimination Crisis in the #MeToo Era,” 2018 Massachusetts Lawyers Weekly Crisis Management Conference, November 1, 2018
  • Chaired panel, “Technology – Sword or Shield,” 2018 ALFA International Transportation Practice Group Seminar  at the Greenbrier Resort in West Virginia
  • Co-chaired panel, “Defending Against Excessive Medical Coding and Billing, Medical/Legal Referral Arrangements and other Medicare and Lien Issues,” 2016 ALFA International Transportation Practice Group Seminar in Key Biscayne, FL
  • Co-chaired panel, “Dealing with Medical Waivers and Reasonable Accommodations under the ADA while Maintaining Safety,” 2015 American Trucking Association, Forum for Motor Carrier General Counsel in La Jolla, CA
  • Lead Speaker on “Trial Motion Practice” section of Massachusetts Bar Association’s program “Fundamentals of Civil Motion Practice” 2006 – 2011, 2015.