Greenfield, MA

Peter Merrigan

Peter M. Merrigan, partner at Sweeney Merrigan Law, LLP, is a distinguished attorney recognized for his exceptional advocacy and impressive results. Named a Top 40 Under 40 Trial Attorney and Rising Star by Super Lawyers, Peter delivers outstanding outcomes for clients across motor vehicle accidents, personal injury, maritime accidents, and more. With a background in prosecuting for the Commonwealth of Massachusetts, Peter brings invaluable experience to his practice. Whether it’s truck accidents or slip and fall incidents, Peter stands ready to champion his clients’ rights with unwavering dedication.

J. Tucker Merrigan

J. Tucker Merrigan, co-managing partner at Sweeney Merrigan Law, LLP, is a trusted leader in plaintiff’s litigation. With settlements exceeding $84 million, Tucker’s unwavering integrity and advocacy have earned the firm widespread recognition. From representing over 125 Massachusetts cities and towns in the opioid crisis to his accolades as a Top 40 Under 40 Trial Attorney and Rising Star, Tucker’s expertise is unmatched. With a background in Political Science from Tufts University and a law degree from New England School of Law, he blends academic prowess with real-world experience to champion his clients’ rights.

Thomas Merrigan

Thomas T. Merrigan, partner at Sweeney Merrigan Law, LLP, is a legal luminary with over four decades of experience. Renowned for securing landmark verdicts and recognized as one of Massachusetts’ “Most Powerful” attorneys, he specializes in personal injury, medical malpractice, and criminal defense cases. Additionally, Tom is a trained mediator with certifications from top institutions, ensuring effective negotiation and facilitation.

Matthieu Parenteau

Matthieu Parenteau is a dedicated partner and trial attorney committed to advocating for those injured by negligence. With a focus on catastrophic injury, motor vehicle collisions, and wrongful death cases, he has secured numerous resolutions for his clients, including multi-million-dollar settlements. Admitted to practice in both Massachusetts and Maine, Matthieu brings his expertise to state and federal courts. Outside the courtroom, he enjoys skiing, running, and surfing with his family and beloved labrador retriever. With a practice devoted entirely to litigation, Matthieu is a trusted advocate for his clients’ rights.

Erin McHugh

Erin McHugh, a respected Boston injury attorney at Sweeney Merrigan Law, focuses on personal injury cases, including motor vehicle accidents and medical malpractice. With notable successes, such as securing $4 million for medical malpractice victims, Erin’s commitment to justice is evident. A graduate of Suffolk University Law School and Lafayette College, Erin’s achievements include recognition as a Super Lawyers Rising Star. Active in professional associations like the Massachusetts Academy of Trial Attorneys, Erin is a trusted advocate for those seeking compensation in personal injury cases.

John P. Connor

John P. Connor is the owner and manager of Stobierski & Connor. He has practiced law in Massachusetts since 1994 and Connecticut since 1995, with extensive litigation experience in civil and criminal matters. He concentrates on personal injury, workers' compensation, civil and criminal litigation, employment law, real estate, estate planning, and estate administration. He is President-Elect of the Franklin County Bar Association and a member of the Massachusetts Academy of Trial Attorneys. He was also elected to the Board of Selectman in Hadley.