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About me

Matthew J. McMahon attended St. John’s University School of Law as a full “St. Thomas More Scholar.” He was a member of the prestigious “St. John’s Law Review” and “The Catholic Lawyer,” has published on the topic of negligence and has appeared on both television and radio. Over the 29+ years he has been handling complex accident and malpractice cases at trial and on appeal he has had numerous multimillion dollar awards and settlements. Many of his cases have appeared in the New York Law Journal because of their unique precedents.

An active member of the New York State Academy of Trial Lawyers, Matt is currently a Member of the Board of Directors of The New York Academy of Trial Lawyers and a former recipient of the NYS Bar President’s “Pro Bono Attorney of the Year Award” for community service. As the “Accident Law Guide” for the, he provides invaluable free legal information and forms to the people of the Bronx. Matt is thoroughly committed to helping ordinary people in extraordinary circumstances.

Admitted to all New York State Courts, the Federal Courts for the Southern and Eastern Districts of New York Matt has also tried cases in Connecticut.


Languages spoken: Spanish, English

Photos and videos

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Practice areas


  1. Personal Injury: 25%
  2. Wrongful Death: 25%
  3. Car Accident: 20%
  4. Brain Injury: 15%
  5. Slip and Fall: 15%

Attorney endorsements

2 total 

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  • Willie Stephen Graves

    Wise, knowledgeable advice. I endorse this lawyer.


    Willie Graves Personal injury Attorney
    Relationship: Fellow lawyer in community

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    I have known Matthew McMahon since we were classmates at St. John's University School of Law in the 1980s, and I have kept in touch with him and followed his career in the years since that time. Matt is an absolutely outstanding trial attorney in the field of personal injury litigation, including cases involving premises accidents, car accidents, construction accidents and medical malpractice. I know for a fact that he has tried many cases to verdict with excellent results for his clients, and when he settles a case before trial, he puts his client's best interest ahead of his own, as it should be. Matt knows the law, and he knows how the courts work on a daily basis. He prepares his cases for trial thoroughly. He also keeps his clients informed of what is going on in their cases and is very accessible whenever they have questions or concerns. He returns calls promptly. Although his focus is the personal injury field, Matt has represented clients in commercial litigation also.


    Jack Mullen Litigation Attorney
    Relationship: Fellow lawyer in community

Contact info

25 E 233rd St
Bronx, NY, 10470-2208


NYCurrently registered 198403/07/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Pro Bono Service AwardNew York State Bar Association1991
Diploma: Trial AdvocacyNational Institute for Trial Advocacy1987
St. Thomas More ScholarshipSt. John's University School of Law1980
Work experience
TitleCompany nameDuration
PartnerMcMahon & McCarthy Accident Lawyers1985 - Present
AssociateHeidell, Pittoni, Murphy & Bach, LLP1984 - 1984
Law ClerkHeidell, Pittoni, Murphy & Bach, LLP1982 - 1984
Association namePosition nameDuration
New York Academy of Trial LawyersMember of the Board of Directors2008 - Present
Alpha Chi Honor SocietyMember1980 - Present
Legal cases
Case nameOutcome
$3,500,000.00Settled during trial
$6,700,000.00Settled after verdict
$5,500,000.00Settlement prior to trial.
See all legal cases 
Publication nameTitleDate
Black Ostrich PressThe Blue Folio2014
St. John's Law ReviewRelationship between premium finance agency and insurance company is not sufficient to sustain a cause of action for negligent misrepresentation.1982
Pro Bono PublishingThe Bronx Law GuideN/A
Pro Bono PublishinHonest FuneralsN/A
School nameMajorDegreeGraduated
St John's University School of LawLawJD - Juris Doctor1983
St Thomas Aquinas CollegeSocial SciencesBS - Bachelor of Science1980
Speaking engagements
Conference nameTitleDate
New York State Academy of Trial LawyersMunicipal Liability CLEsN/A