When Results Matter
Massachusetts Personal Injury & Criminal Defense Attorney
Joseph M. Mahaney — 40+ years of trial experience fighting for clients throughout the Commonwealth.

Four decades fighting for clients throughout Massachusetts.
Consistently praised for results, communication, and care.
Decades of litigation and trial experience in state and federal courts.
Representing clients across the entire Commonwealth.
Experience that stands on afoundation of trust.
For more than 40 years, Attorney Joseph M. Mahaney has stood beside Massachusetts clients in their most difficult moments — preparing every case with the diligence of a seasoned trial attorney.
Request a Free ConsultationMassachusetts Personal Injury& Criminal Defense
Two focused practices, one trial-tested attorney. Whether you've been injured by negligence or are facing criminal charges, Attorney Mahaney brings four decades of courtroom experience to your side.
Decades of trial work,
in the matters that change lives.

Dedicated to my clients' success — for over 40 years.
From his early years as an Assistant District Attorney to 17 years as a litigation partner, Joseph M. Mahaney has spent four decades preparing every case as if it will be tried.
Litigation across personal injury & criminal defense.
Suffolk County District Attorney's Office.
17 years at McLaughlin, Richards & Mahaney, LLP.
Trial & appellate practice up to the U.S. Supreme Court.
Serving All ofMassachusetts.
From Boston to the South Shore, the North Shore, and Central Massachusetts — Attorney Mahaney represents clients in courts throughout the Commonwealth.
Decades of results acrossMassachusetts & federal courts.
Prior results do not guarantee future outcomes.
Explore Results & ExperienceWhy Hire Joseph M. Mahaney?
40+ Years of Experience
Four decades of litigation across personal injury and criminal matters.
Former Assistant District Attorney
Prosecutorial insight from the Suffolk County DA's Office strengthens every case.
State & Federal Court Experience
From Massachusetts courts to the First Circuit and the U.S. Supreme Court.
Dedicated to Client Success
Every case is prepared for trial from day one — with direct attorney access.
Justice is built onpreparation and balance.
Every case is weighed with care, prepared with precision, and argued with the conviction of an attorney who has spent four decades in Massachusetts courtrooms.
Schedule Your ConsultationWhat clients say after their case.
Every result is unique. The trust clients place in our firm is what we work hardest to earn.
“I had an accident in Maine during my vacation. I tried to contact them for a solution but it seemed not to work. Then I searched online and found Joseph. This is my first time involved with a legal situation. He is an experienced personal injury lawyer and helped a lot with my case. After 4 months of negotiation, I am really satisfied with the final result. Strongly recommend.”
Get a free consultation with an experienced Massachusetts attorney.
Cases are won — or lost — in the preparation. The earlier you involve experienced counsel, the better your outcome.
