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About John McCarthy

John McCarthy is a trial attorney at Michael Kelly Injury Lawyers, a Boston firm built on a single, uncompromising mission: to fight for the maximum recovery for injured people across Massachusetts. As part of a team of smart, aggressive trial lawyers, John shares the firm's deep commitment to accident victims and its belief that when negligence turns a person's life upside down, they deserve a relentless advocate in their corner.

John focuses his practice on plaintiff's personal injury law, standing up for people hurt in car crashes and other serious accidents throughout the Boston area and beyond. At Michael Kelly Injury Lawyers, clients work directly with their attorney rather than being handed off to a case manager or paralegal, and John embraces that hands-on approach. He takes the time to understand the full impact an injury has had on a client's health, finances, and family, and he builds each case with the kind of care and preparation that gets results.

As a trial lawyer, John is ready to take a case to a jury when an insurance company refuses to offer what a client truly deserves. That willingness to fight in the courtroom is exactly what gives his clients leverage at the negotiating table, and it reflects the firm's reputation for being personally committed to securing the best possible settlement or verdict. With more than 1,600 five-star reviews and a client-first guarantee, Michael Kelly Injury Lawyers has earned the trust of the community, and John is proud to help uphold that standard.

For injured people in Boston and across Massachusetts, John McCarthy offers exactly what the moment calls for: an aggressive, compassionate trial attorney who treats every client's fight as his own and refuses to back down until they get the justice and full compensation they deserve.

Proven verdicts and settlements

$17.6 million

A decayed tree from a neighbor's rental lot in Orange, Massachusetts fell on three women in August 2024, causing traumatic brain injuries and fractures; Franklin County Superior Court entered a $17.6 million judgment against the property owner in March 2026.

Franklin County Superior Court, MA · 2026Premises LiabilityRead the full story →
View 1 proven verdict →

Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.

Practice areas

Other attorneys at Michael Kelly Injury Lawyers

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Proven verdicts and settlements from other Boston firms

Lubin & Meyer
Lubin & Meyer
$40 million · $40 Million Verdict for Family of Boy Left with Cerebral Palsy After Five-Hour Delivery Delay
Swartz & Swartz
Swartz & Swartz
$18.4 million · Federal Jury Awards $18.4 Million After Lahey Clinic Doctors Cancel HIV Test, Allowing AIDS to Develop
Sugarman & Sugarman
Sugarman & Sugarman
$30.55 million · $30.55 Million Verdict After Traveling Nurse Failed to Monitor Fetal Heart Rate at MGH
Thornton Law Firm
Thornton Law Firm
$300 million · $300 Million Settlement for Pension Funds Overcharged on Foreign Currency Trades
Breakstone, White & Gluck
Breakstone, White & Gluck
$56 million · $56 Million Verdict for Newburyport Man Left Amputee With Brain Injury After Amazon Van Crash