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William K. Mattar
also known as William Mattar, William Mattar Accident Lawyers
About William
Biography
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.
Helping people navigate the legal process after a motor vehicle accident has been the focus of my practice for more than 35 years, and it’s a responsibility I take seriously.
Hurt in a Car? Call William Mattar! Let our focus and experience with car accident cases help you!
Hurt in a Car? Call William Mattar! Let our experience with motorcycle accident cases help you!
Hurt in a Car? Call William Mattar! Let our experience with truck accident cases help you!
Practice Areas
3
Practice Areas
Car Accident
34%
Motorcycle Accident
33%
Trucking Accident
33%
Fees and Rates
Licenses
Licensed in Maine for 10 years
State: Maine
Acquired: 2016
No misconduct found
Licensed in Colorado for 10 years
State: Colorado
Acquired: 2015
No misconduct found
Licensed in Minnesota for 10 years
State: Minnesota
Acquired: 2015
No misconduct found
Licensed in Georgia for 11 years
State: Georgia
Acquired: 2015
No misconduct found
Licensed in Kansas for 11 years
State: Kansas
Acquired: 2014
No misconduct found
Licensed in Massachusetts for 11 years
State: Massachusetts
Acquired: 2014
No misconduct found
Licensed in Vermont for 11 years
State: Vermont
Acquired: 2014
No misconduct found
Licensed in Nebraska for 11 years
State: Nebraska
Acquired: 2014
No misconduct found
Licensed in District of Columbia for 11 years
State: District of Columbia
Acquired: 2014
No misconduct found
Licensed in Pennsylvania for 11 years
State: Pennsylvania
Acquired: 2014
No misconduct found
Licensed in New Hampshire for 11 years
State: New Hampshire
Acquired: 2014
No misconduct found
Licensed in Arizona for 11 years
State: Arizona
Acquired: 2014
No misconduct found
Licensed in Wyoming for 11 years
State: Wyoming
Acquired: 2014
No misconduct found
Licensed in Texas for 11 years
State: Texas
Acquired: 2014
No misconduct found
Licensed in Michigan for 11 years
State: Michigan
Acquired: 2014
No misconduct found
Licensed in Oregon for 11 years
State: Oregon
Acquired: 2014
No misconduct found
Licensed in Alaska for 12 years
State: Alaska
Acquired: 2014
No misconduct found
Licensed in New York for 36 years
State: New York
Acquired: 1989
No misconduct found
Location
WILLIAM MATTAR ACCIDENT ATTORNEYS
(716) 444-4444
Fax
6720 Main Street, Suite 100, Williamsville, NY, 14221
williammattar.comWILLIAM MATTAR ROCHESTER ACCIDENT ATTORNEYS
(585) 444-4444
Fax
16 West Main St., Powers Building, Suite 736, Rochester, NY, 14614
williammattar.comWILLIAM MATTAR SYRACUSE ACCIDENT ATTORNEYS
(315) 444-4444
Fax
One Park Place, 300 S. State St., Suite 736, Syracuse, NY, 13202
williammattar.comWILLIAM MATTAR ALBANY ACCIDENT ATTORNEYS
(844) 444-4444
Fax
350 Northern Blvd., Suite 306, Albany, NY, 12204
williammattar.comWILLIAM MATTAR BUFFALO ACCIDENT ATTORNEYS
(716) 965-8756
Mobile
69 Delware Ave STE 111, Buffalo, NY, 14202
williammattar.comGallery
Online Presence
Other places you can find William online.
William K. Mattar's Reviews
Avvo Review Score
397 Client Reviews
Filter Avvo Reviews (397)
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Practice Areas
What Clients Mention
Showing 1 - 5 of 63 reviews | Recommendation
Posted by Nacharizer | April 20, 2024 | Hired Attorney | Lawsuits & Disputes
They are the best
I have to say it !!!!!they really did a great job !!!! I was whit an other lawyer no name!!!for personal issues they denied me !!! So I had a good friend that told me call William for a second opinion!!!I told him about my accident and he took my case I got something and I Thank to him for everything...
Posted by Willie | May 25, 2022 | Hired Attorney | Personal Injury
Great team of professionals
William Mattar accepted my difficult case after other law firms refused it, due to me being an "eggshell client." From start to finish, Megan always provided value added service by responding to my questions and/or concerns expeditiously; by the close of business or within 24 hours. As I conc...
William Mattar
Replied last May 25, 2022Willie, we know how difficult it is to work through the aftermath of an injury accident. We are glad our dedicated team was able to help you, and that you received compassionate and attentive care. Thank you for your endorsement, and we wish you the very best moving forward. If should ever need us down the road, we will indeed be here for you.
Posted by Summer | October 16, 2021 | Hired Attorney | Personal Injury
Exceptionally pleseant experience
I was hit by a car while riding my bicycle back in 2019 and they talked with me and helped me out in getting the ball rolling towards a potential case. In the end, my injuries were not serious enough to file any claims of significance other than getting my hospital bills covered by the other party's ...
William Mattar
Replied last January 05, 2022Thank you, Summer. Every case is unique, and we are glad we were able to help guide you through your accident's aftermath. We wish you the very best moving forward.
Posted by Mark | December 31, 2020 | Hired Attorney | Lawsuits & Disputes
THE BEST ATTORNEY OFFICE
Want to thank everyone at William Mattar’s office. It was a long journey. We won and it’s now closing. Special thank you to my attorney Matt Glose and my legal assistant NIcole Lee. The time and patience they took with my case. Always notifying me and keeping me always in the loop. Definitely to all....
William Mattar
Replied last December 31, 2020Mark, thank you so much for taking the time to share your thoughts. The experience you have described is exactly the type of experience we want all of our clients to have. Our team knows what a difficult experience it is to go through a case, and our compassion, knowledge and communication are there to help clients through. Thank you for trusting our team to help you. Wishing you the very best, and we are always here if you should ever need us.
Posted by Russ | June 19, 2019 | Hired Attorney | Personal Injury
Well taken care of.
The attorneys and paralegals were all highly professional, and truly compassionate and sincere. They always answered my questions in a timely fashion without using a lot of legalese. I would recommend anyone I know to use the services of the Mattar law firm if they were unfortunate enough to be injur...
William Mattar
Replied last June 19, 2019Thank you, Russ. If there is anything additional we can ever help with, please call on us.
William K. Mattar's Lawyer Endorsements
"I'm happy to endorse Bill Mattar. We've known each other for many years, and his professional courtesy and diligent advocacy are impressive. His firm also knows how to give back. They’ve done some great things to better the community throughout New York state."
"Bill is a living proof that hard work and commitment will always set you apart."
"William is a dedicated attorney. He and his firm are passionate about the work they do for their clients and their community. He is an attorney I would want on my side, and I would recommend to anyone in need of an injury attorney."
"William is an excellent attorney and his firm cares about the community. I would definitely recommend William Mattar."
"Excellent attorney that cares about his clients. I endorse William."
"I have know William Mattar and have worked closely with him in the personal injury / car accident practice area since 2012. He is extremely diligent, very professional and is an incredible personal injury attorney. If my family needed an injury attorney in the State of New York, I would hire him immediately. Dustin L. DeVaughn"
"William Mattar is an outstanding lawyer who treats his clients with respect. He always puts the needs of his clients first. I endorse this lawyer."
"Mr. Mattar is an outstanding and excellent attorney. I would recommend anyone and everyone to him for his services. I have been practicing for 24 years as a judge, magistrate, law professor, private attorney, and prosecutor, and I learn from his answers on Avvo every day. Simply an exemplary attorney."
"I started my career working for Bill. He knows personal injury cases and gets outstanding results for his clients. I know - I have seen it first hand. I endorse this lawyer."
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"William is a a very effective and talented advocate for his clients. He is part of one of the most respected law firms in the state of NY!"
"Bill is committed and compassionate about providing outstanding customer service to his clients. His firm has a history of getting great results and he won't back down. He proudly represents the injured and will only do what is in his clients' best interests."
"I endorse this lawyer."
"Bill takes his practice and his business seriously. He does excellent work for his clients and always puts their interests first. I would refer any injury clients in his area to him."
"William is a very professional and experienced attorney."
"I endorse this lawyer. Knows how to and does obtain the best possible results for clients. Makes a difference."
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Experience
Honors
2018
AV Preeminent Judicial Edition, Martindale-Hubbell®
2018
Client Champion - Platinum, Martindale-Hubbell®
2018
AV Preeminent, Martindale-Hubbell®
2018
Award of Merit, Bar Association of Erie County
2018
Best Companies to Work For in New York State, Best Companies NY
2018
Best Places to Work, Buffalo Business First
2017
VLP Partner Law Firm, Bar Association of Erie County Volunteer Lawyers Project
2017
Client Champion - Platinum, Martindale-Hubbell®
2017
America's Most Honored Professionals - Top 1%, American Registry
2017
5th AV Preeminent 5th Anniversary, Martindale-Hubbell
2017
2017 AV Preeminent Attorney, Martindale-Hubbell
2017
2017 AV Preeminent Attorney - Judicial Edition, Martindale-Hubbell
2017
Best Companies to Work For in New York State, Best Companies NY
2017
Outstanding Eagle Scout Award, Boy Scouts of America
2017
Certificate of Recognition: Raising Awareness of Bullying, Buffalo Common Council
2017
Team of Hope Award, Erie County Legislature
2016
2016 AV Preeminent Attorney - Judicial Edition, Martindale-Hubbell
2016
2016 AV Preeminent Attorney, Martindale-Hubbell
2016
America's Most Honored Professional - Top 1%, American Registry
2016
2016 Client Distinction Award, Martindale-Hubbell
2016
Certificate of Recognition: Making a Difference in the Community, Buffalo Common Council
2015
2015 AV Preeminent Attorney, Martindale-Hubbell
2015
2015 Client Distinction Award, Martindale-Hubbell
2015
Partner of the Year Award, cj Advertising
2014
2014 AV Preeminent Attorney - Judicial Edition, Martindale-Hubbell
2014
2014 Client Distinction Award, Martindale-Hubbell
2014
2014 AV Preeminent Attorney, Martindale-Hubbell
2014
Campaign Chairman Service Award, Erie County Bar Foundation
2013
2013 Client Distinction Award, Martindale-Hubbell
2013
2013 AV Preeminent Attorney, Martindale-Hubbell
2013
Legal Elite of Western New York, Buffalo Business First
2013
2013 AV Preeminent Attorney - Judicial Edition, Martindale-Hubbell
2012
Silver Beaver Award, Boy Scouts of America
2012
2012 AV Preeminent Attorney, Martindale-Hubbell
2012
2012 Peer Review Rated Preeminent Attorney, Martindale-Hubbell
2011
20 Years Serving the Community, LexisNexis Martindale-Hubbell
2011
Innovator of the Year Award, cj Advertising
2011
2011 Peer Review Rated Preeminent Attorney, Martindale-Hubbell
2010
2010 Peer Review Rated CV Attorneys, LexisNexis Martindale-Hubbell
2009
2009 Peer Review Rated CV Attorney, LexisNexis Martindale-Hubbell
2009
2009 Peer Review Rated CV Attorney, LexisNexis Martindale-Hubbell
1997
AV Rated Attorney, LexisNexis Martindale-Hubbell
1982
Eagle Scout, Boy Scouts of America
Work Experience
1995 - Present
President/Lawyer, William Mattar, P.C.
Associations
2011 - Present
Bar Association of Erie County, Unlawful Practice CommitteeMember
2010 - Present
Boy Scouts Fire and Ice Fundraiser Chairman for the Greater Niagara Frontier CouncilChairman
2009 - Present
Young Presidents OrganizationChapter Chair / Member
2000 - Present
Association of Trial Lawyers of AmericaMember
2000 - Present
Village Preservation Foundation of WilliamsvillePresident
Erie County Bar Foundation
Board of Directors
Bar Association of Erie County
Member
Monroe County Bar Association
Member
New York State Bar Association
Member
Committee on Law Practice Management
Member
Sample of Legal Cases
Gordon Vs. Tobe & Tobe
$1,244,000.00
Education
1988
Syracuse University College of Law
JD/MBA - Juris Doctorate and MBA
N/A
State University of New York, College at Plattsburgh
BS - Bachelor of Science
Speaking Engagements
2013
SUNY Buffalo Law School
Car Accidents & Seat Belt Safety
2013
Innovative Technology Entrepreneurial Club
A Career In Law
2002
W.N.Y. Health Care Association
Changes to New York's No-Fault Regulation 68
Publications
N/A
Self
I was in a car accident! What should I do?!?! ...And Other Frequently Asked Questions
Languages
English
Activity
Legal Answers
Legal Guides
Legal Guides
Video Legal Guide
Filling Out the No-Fault Application
01 Jul 2014
Video Legal Guide
What To Do After a Car Accident
01 Jul 2014
Video Legal Guide
What To Do After a Truck Accident
01 Jul 2014