About Peter Mattar

Peter Mattar graduated Magna Cum Laude from Binghamton University with a Bachelor of Science in Management with a concentration in Finance, then earned his Juris Doctor Cum Laude from Syracuse University College of Law. A third-generation attorney, Peter grew up surrounded by family members who are attorneys and was inspired by their stories about the difference attorneys can make in clients' lives. He chose to focus on personal injury law because of the injustice that clients suffer. He has deep compassion for innocent victims whose lives have been upended by their injuries, and likens lawyering to solving a puzzle: finding the combination of facts and law most advantageous to the client. Peter is admitted in New York, California, Florida, Pennsylvania, Wyoming, and before the Supreme Court of the United States.

Proven verdicts and settlements at William Mattar Law Offices

These results are credited to William Mattar Law Offices. A result appears under an attorney's own name only when a published source names them as counsel on the case.

$1.2 millionVerdict

A jury awarded $1.2 million in pain and suffering to a retired 69-year-old woman struck by an unmarked Town of Cheektowaga police vehicle as she crossed legally in a crosswalk, with the Fourth Department unanimously affirming the verdict on appeal.

Supreme Court, Erie County, NY · 2018Car AccidentsRead the full story →
Verdict

William Mattar, P.C. won a landmark ruling for a postal carrier bitten by a dog, convincing New York's highest court to abolish the 2006 'Bard v. Jahnke' precedent that had barred negligence claims against domestic animal owners for 19 years.

New York Court of Appeals · 2025Premises LiabilityRead the full story →

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

Practice areas

Education

Syracuse University College of Law
J.D.
Binghamton University
Undergraduate

Bar admissions & credentials

State Bar of Florida, admitted 2021
State Bar of California, admitted 2022
State Bar of Pennsylvania, admitted 2024
State Bar of Wyoming, admitted 2024

Other attorneys at William Mattar Law Offices

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