
William K Mattar
Owner and PresidentatWilliam Mattar Accident Lawyers
Williamsville, NY
Practicing car accidents in Williamsville since 1989.
- 37+
- Years practicing
- 4.5 ★
- 37 client reviews
- 2
- Bar admissions
Are you William K Mattar?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
William K Mattar is an owner and president based in Williamsville, NY. The practice focuses on Car Accidents, Education, and General. William has over 37 years of legal experience. Currently practicing at William Mattar Accident Lawyers. Rated 4.5 out of 5 from 37 client reviews.
- Based in
- Williamsville, NY
- Experience
- over 37 years
- Known for
- Car Accidents · Education · General
- Handles Car Accidents, Education, and General matters from Williamsville, NY.
- Over 37 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About William K Mattar: William K Mattar is an owner and president based in Williamsville, NY. The practice focuses on Car Accidents, Education, and General. William has over 37 years of legal experience. Currently practicing at William Mattar Accident Lawyers. Rated 4.5 out of 5 from 37 client reviews.
Areas of practice
Practice focus
William K Mattar represents clients in Williamsville, New York across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About William K Mattar
William Mattar is the founder of William Mattar, New York State’s largest motor vehicle accident law firm. Inspired at a young age by his father, a lawyer in Western New York, William Mattar grew up watching firsthand how legal advocacy could help people through difficult times. That early exposure shaped his decision to pursue a career in law with a focus on helping others. William Mattar earned a Bachelor of Science degree in psychology from the State University of New York at Plattsburgh in 1986 and received his Juris Doctor from Syracuse University College of Law in 1988. After gaining experience at another law firm, he founded William Mattar in 1990 in Williamsville, New York.While the firm initially handled a variety of legal matters, William Mattar now focuses exclusively on motor vehicle accident injury cases, including car, truck, motorcycle, and rideshare accidents. With more than 35 years of experience, he has helped build a firm that has represented tens of thousands of people injured in motor vehicle accidents across New York State. Today, the firm serves clients statewide with offices in Buffalo, Rochester, Syracuse, and Albany.In addition to his legal practice, William Mattar is deeply committed to community service. He is an Eagle Scout and has long been involved with the Boy Scouts of America, Greater Niagara Frontier Council. Since 2002, he has served as chairman of the organization’s annual dinner, helping raise funds that support programs benefiting more than 10,000 children. He is also active in his church and has held leadership roles in numerous civic and charitable organizations.Outside of work, William Mattar enjoys spending time with his wife and children, cooking, hiking, and volunteering with the Boy Scouts of America alongside his sons, who have also earned the rank of Eagle Scout.
Credentials
Education
Syracuse University College of Law
J.D. · 1988
State University of New York at Plattsburgh
B.S. Psychology · 1986
Jurisdictions
Bar admissions
Minnesota
2015 · ACTIVE
New York Oregon Penn
1989 · ACTIVE
Recognition
Awards & honors
AV Preeminent
Affiliations
Professional memberships
Erie County and Monroe County Bar Associations
membership
Locations
Office locations
William Mattar Accident Lawyers
6720 Main Street, Suite 100
Williamsville, NY 14221
Open in Google MapsClient feedback
What clients say about William K Mattar
4.5
37 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once William K Mattar claims this profile.
Read all reviewsFrequently asked
Common questions
What areas of law does William K Mattar practice?
William K Mattar focuses on Car Accidents, Education, General, Motorcycle, and Pedestrian.
Where is William K Mattar located?
William K Mattar primarily serves clients in Williamsville, New York, with an office at 6720 Main Street, Suite 100.
How experienced is William K Mattar?
William K Mattar has 37 years of legal practice, having been licensed since 1989.
Is William K Mattar a verified attorney?
William K Mattar's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with William K Mattar?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 716-650-7225.
More counsel





