Rated by Massachusetts Super Lawyers: 2020 – 2025

Boston Personal Injury Lawyer – Representing Accident Victims in Boston and throughout Massachusetts

Free Case Evaluation | No Fee Unless We Win – Boston’s Trusted Personal Injury Attorney

Recognized by

Super Lawyers 2025 badge awarded to J. Finn Gavagan, a top-rated personal injury attorney in Boston, Massachusetts.
J. Finn GavaganReviewsout of 41 reviews
Super Lawyers Rising Stars badge for J. Finn Gavagan, a personal injury attorney in Boston, MA, recognized in Massachusetts Rising Stars list for 2020, 2021, 2022, 2023, and 2024, an honor awarded to only 2.5% of lawyers in the state.
9.2J. Finn Gavagan
J. Finn Gavagan awarded Boston Magazine's Top Lawyer in 2021

Dedham Car Accident Review– “made the process as stress-free as possible”

I was rear-ended in a car accident in Dedham, and Attorney J. Finn Gavagan at Gavagan Law, LLC handled everything for me. He always kept me informed, answered my questions, and made the process as stress-free as possible. If you need a personal injury attorney or car accident lawyer in Dedham, MA, I highly recommend

Pat Perez
Motor vehicle Accident

Dorchester Car Accident Testimonial – “the best decision I made”

was injured in a car accident in Dorchester, and Attorney J. Finn Gavagan at Gavagan Law, LLC was the best decision I made. He always took the time to explain the process, answered all of my questions, and truly cared about my recovery. If you’re searching for a personal injury attorney or car accident lawyer

Brittney Smith
Motor vehicle Accident

“Confiance” and Assurance after a car accident in Boston

One of the best attorney[s] I ever met before. He is great, he is doing [a] good job…

Chanoil
Motor vehicle Accident

Excellent Result After Providence, RI MVA

I was rear-ended while driving in Providence, Rhode Island, and Attorney J. Finn Gavagan at Gavagan Law, LLC, helped me every step of the way. He explained the process clearly, always kept me informed, and got an outstanding result. His professionalism and dedication made a stressful time much easier to handle. If you need a

Jennifer
Motor vehicle Accident

Dorchester Car Accident Lawyer Helped Us After Serious Out-of-State Crash

My partner and I were injured in a head-on car accident while traveling out of state. We live in Dorchester and turned to Attorney J. Finn Gavagan at Gavagan Law, LLC. He guided us through the entire legal process, kept us informed, and helped us reach a great resolution. If you’ve been hurt in a

John
Motor vehicle Accident

Helped My Sister After a Serious Trip and Fall at a Supermarket

My sister was referred to Attorney Finn Gavagan by a close friend of hers who said, “You need someone who knows the law and will truly have your back.” Her friend was right. After she was seriously injured in a trip and fall at a supermarket in Cape Cod, Attorney Gavagan helped her through the

Terry Black and Connie
Premises Liability, Slip and Fall

Great Result After Dorchester MBTA Bus Accident – Highly Recommend Gavagan Law

Attorney J. Finn Gavagan at Gavagan Law, LLC helped me after I was injured in a motor vehicle accident while driving an MBTA bus in Dorchester, Massachusetts. He got a great result for my case and guided me every step of the way. If you’re hurt in a car accident in Boston, Dorchester, or anywhere

Michaelle S
Motor vehicle Accident

Caring Boston Car Accident Lawyer Who Delivers Results

Mister FINN GAVAGAN is Good Lawyer he is care about your case and he make sure you got what you need by law.

Guerda Cyril
Motor vehicle Accident

Very Professional

I was in a car accident in downtown Boston when a valet driver collided into my vehicle. Attorney J. Finn Gavagan at Gavagan Law, LLC, made the entire process simple. He explained everything clearly, handled the insurance companies, and got a great result for my case. If you’re looking for a car accident lawyer in

anonymous
Motor vehicle Accident

“Attorney Gavagan helped me after a car accident in Worcester, MA. He guided me through my personal injury case and got a great result. One of the best lawyers in Massachusetts!”

I was injured in a car accident in Worcester, MA, with my young child. I was overwhelmed by the medical bills and the insurance process. Attorney J. Finn Gavagan at Gavagan Law, LLC, guided me through everything and got me a great result for my personal injury case. He was compassionate, knowledgeable, and always made

Yerolyn Abreu
Motor vehicle Accident

highly recommend him…If ever need an accident lawyer in Boston, Dorchester

I had a great experience with Attorney J. Finn Gavagan at Gavagan Law, LLC. Throughout the process of my accident he guided me through everything and stood by my side every step of the way.  He advocated for me and also helped me advocate for myself. This was my first accident and he helped understand

Nijah Baker
Motor vehicle Accident

made the process easy and fast

Attorney J. Finn Gavagan at Gavagan Law, LLC, represented me after a car accident, and I couldn’t be happier with the results. He was professional, attentive, and made the process easy and fast and it was easy to understand. I highly recommend him.

Errica
Motor vehicle Accident

“Attorney J. Finn Gavagan…You won’t be disappointed”

Attorney J. Finn Gavagan at Gavagan Law, LLC, represented me after a car accident, and I couldn’t be happier with the results. He was professional, attentive, and made the process easy to understand. He was clear cut and paid attention to my needs as a client. If you’re in a car accident in Boston, MA,

Hanna
Motor vehicle Accident

Attorney Finn Gavagan made the entire process easy for me

Last spring I was involved in a car accident where I suffered some bodily injuries on my back and shoulder’s. I was referred by a good friend to Gavagan Law, LLC, and I have to share how great their service are. Attorney Finn Gavagan made the entire process easy for me. He took the time

Jairo Rodriguez
Motor vehicle Accident

“Solid reliable attorney”

I was recently represented by attorney J. Finn gavagan for a car accident that occurred a little north of Boston on I-93 within the last few months and he was able to resolve my case beyond my expectations, if anyone has been involved in a car accident and looking for a solid reliable attorney I’d

Justin Malafronte
Motor vehicle Accident

We Handle​ All Types of Personal Injury Cases

Boston car accident lawyer - Legal help after a head-on collision or serious motor vehicle accident.

Car Accident, Motorcycle Accidents, Truck Accidents​

Injured in a car, motorcycle, or truck accident? Our Boston personal injury firm helps you recover compensation for medical bills, lost wages, and pain and suffering.

Pedestrian and bicycle accident attorney in Dorchester and Boston - Injuries from crosswalk and bike lane incidents.

Bike and Pedestrian Accidents

Hit while walking or biking in Boston, Cambridge, Somerville, or Cape Cod? Our personal injury firm helps pedestrian and bicycle accident victims recover for medical bills, lost wages, and emotional suffering.

Slip and fall lawyer in Boston, MA - Injured by wet floor or unsafe property condition.

Slip and Fall Accidents and Premises Liability

From wet floors and icy sidewalks to poorly maintained stairs, we hold negligent property owners accountable.

Boston nursing home fall attorney - Elder abuse and fall injury cases in Massachusetts care facilities.

Nursing Home Neglect and Fall Injuries

We specialize in nursing home neglect cases involving falls, pressure ulcers, and inadequate care. We fight for justice and compensation for preventable injuries, emotional suffering, and wrongful death.

Wrongful death attorney in Boston, MA - Compassionate legal help after a fatal accident or loss of a loved one.

Wrongful Death Claims

Lost a loved one due to negligence? Gavagan Law, LLC helps families in Boston and across Massachusetts pursue wrongful death claims with care and determination.

Construction site injury attorney in Massachusetts - Falls and accidents on dangerous job sites.

Construction and Roofing Accidents

Injured on a construction site in Boston or Massachusetts? Gavagan Law, LLC specializes in construction accident cases, handling workers' compensation claims and third-party negligence lawsuits.

Dog bite injury lawyer in Boston and Dorchester - Attacks and injuries caused by dangerous dogs.

Dog Bites and Attacks

Injured by a dog bite or dog attack in Boston or anywhere in Massachusetts? Gavagan Law, LLC aggressively pursues compensation under Massachusetts’ strict liability dog bite law (M.G.L. c. 140, § 155).

Daycare injury attorney in Boston, MA - Legal support for injured children at daycare or preschool.

Daycare Injuries

If your child was injured at a daycare in Boston or anywhere in Massachusetts, Gavagan Law, LLC is here to help. We investigate negligent supervision, unsafe conditions, and daycare misconduct.

Injured on the MBTA or a rideshare service? Boston personal injury attorney for train, bus, or ‘The Ride’ accidents.

MBTA, bus, 'The Ride', and rideshare accidents

Injured in an MBTA, bus, or public transit accident in Boston or Dorchester? Gavagan Law, LLC understands the Massachusetts Tort Claims Act and fights for victims of subway, bus, or “The Ride” injuries.

Medical malpractice attorney in Dorchester and Boston - Injuries caused by healthcare negligence.

Medical Malpractice

If you've been harmed by a healthcare provider’s mistake, you may have a medical malpractice claim. At Gavagan Law, LLC in Boston, MA, we represent clients injured by misdiagnosis, surgical errors, and hospital negligence. We’ll help you prove a violation of the standard of care and pursue full compensation.

Gavel and pills representing pharmaceutical malpractice and medication errors in Massachusetts

Pharmaceutical Errors and Medication Mistakes

Medication mistakes can have serious—even deadly—consequences. At Gavagan Law, LLC, we represent clients in Boston and throughout Massachusetts who’ve suffered due to prescription errors, overdoses, or dangerous drug interactions. Whether caused by a doctor, pharmacist, or manufacturer, we hold the responsible parties accountable.

Why Choose Gavagan Law Personal Injury & Accident Lawyers?

No Fee Unless You Win

We handle every personal injury case on a contingency fee basis — meaning you pay nothing upfront and owe no attorney’s fees unless we win compensation for you.

What We Do After You Hire Us

From the moment you hire us after an incident—and through final settlement or judgment—our team works tirelessly to:

  • Advocate for your rights with the insurance companies and negligent parties
  • Obtain accident reports, surveillance footage, and inspect the accident scene
  • Consider every avenue—from demand packages to trial—to seek the best outcomes
  • Explain how Massachusetts law applies to your case
  • Help ensure medical bills and treatment are paid
  • Pursue compensation for your injuries, medical bills, lost wages, and pain and suffering damages
  • Communicate clearly and provide personal attention, so you feel informed, empowered, and confident throughout the process

About Gavagan Law — Boston Personal Injury Law Firm

Who we help

At Gavagan Law, we are a dedicated personal injury law firm in Boston, MA. We represent injury victims in Boston and throughout Massachusetts who have suffered personal injuries after car accidents, pedestrian accidents, slip-and-falls, construction accidents, and other serious injuries. Our personal injury attorneys have years of experience representing victims of nursing home negligence and wrongful-death matters.  

We are committed to securing full and fair compensation for each of our clients—whether that means filing a personal injury claim, negotiating a settlement, or pursuing a personal injury lawsuit. We have the tools and knowledge to pursue the best possible result for every client.

At Gavagan Law, we are not just trial attorneys; we are dedicated advocates passionately committed to ensuring that New England accident victims receive the respect and financial compensation they deserve. Talk directly with an experienced injury lawyer about your personal injury claim or personal injury case.

Why Clients Choose Us

Our clients are at the heart of everything we do. We take pride in delivering compassionate, high-quality representation to each person who trusts us with a personal injury case. Our attorneys provide comprehensive, personalized attention so every client feels heard, understood, and valued.

Our personal injury lawyers have been recognized by Massachusetts Super Lawyers, The Best Lawyers in America®, and have been featured on Boston Magazine’s prestigious Top Lawyers List.

Choose Gavagan Law when you want a trusted advocate and clear legal guidance.  Whether the accident occurred in downtown Boston, DorchesterCambridge, Jamaica Plain, Quincy, Plymouth, New Bedford, Cape Cod, Suffolk County, Middlesex County, Worcester County, or Bristol County reach out for a free consultation or send us a message on our contact form. No fee unless we win.

Boston’s Old State House framed by downtown skyscrapers at sunrise—contact Gavagan Law, trusted Boston personal‑injury attorneys
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