Fighting For Boston Families For More Than A Decade

Personal Injury 2022
Better Business Bureau Accreditation
Massachusetts Academy of Trial Attorneys
Medical Malpractice 2022
Massachusetts Bar Association
Best Lawyers
American Association for Justice
The National Trial Lawyers Top 40 Under 40

Peter M. Merrigan

Peter M Merrigan, Boston Personal Injury Lawyer

Attorney Peter M. Merrigan is a partner at Sweeney Merrigan Law, LLP. He joins his brother Attorney J. Tucker Merrigan and father Thomas T. Merrigan to form Sweeney Merrigan Law, LLP.

Named a 2015 through 2018 “Top 40 Under 40 Trial Attorney” and a 2015-2018 “Rising Star” according to Super Lawyers, Attorney Merrigan has a reputation for producing exceptional results on behalf of his clients by way of negotiation, mediation, arbitration, and trial.

He is admitted to practice in the Commonwealth of Massachusetts and focuses on Motor Vehicle Accidents, Personal Injury, Maritime accidents, Wrongful Death, Defective Products, Slip or Trip and Fall incidents, Insurance Disputes, and General Liability accidents.

Boston personal injury lawyer Peter Merrigan attended New England School of Law where he graduated Cum Laude. While in law school, Attorney Merrigan received the Cali Excellence for the Future Award for his excellent achievement in the study of Negotiation and Selected Topics in Constitutional Law.

Before graduating from New England School of Law, Attorney Merrigan successfully represented the Commonwealth of Massachusetts as a Rule 3:03 Prosecutor for Suffolk County at the West Roxbury District Court where he served as an Assistant District Attorney at arraignments, pre-trial conferences, motions, bench-trials, and jury trials.

He is currently a member of the Massachusetts Academy of Trial Attorneys, the Boston Bar Association, the Massachusetts Bar Association, and the National Lawyers Guild.

He also is a volunteer with Big Brothers Big Sisters of Greater Boston.

Attorney Peter Merrigan graduated from the Loomis Chaffee School before obtaining his Bachelors of Arts Degree from James Madison University in Virginia.

Areas of Practice in Boston, Massachusetts:

Professional Associations and Memberships:

  • Massachusetts Academy of Trial Attorneys
  • Boston Bar Association, Member
  • Massachusetts Bar Association, Member


  • New England School of Law, Boston, Massachusetts
  • James Madison University, Virginia
  • Loomis Chaffee, Windsor Connecticut

Litigation Percentage:

  • 100% of Practice Devoted to Litigation

Bar Admissions:

  • Massachusetts
  • United States District Court, Massachusetts
  • Pennsylvania

Honors and Awards:

Contact Attorney Peter M. Merrigan Now
Sweeney Merrigan Law has secured groundbreaking verdicts and settlements for our clients. Contact us for a personal consultation and start your journey to recovery and resolution.

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