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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 11 - 15 of 16 reviews | Practice Area Knowledge
Posted by Nancy | April 28, 2016 | Hired Attorney | Personal Injury
Thank you!
Thank you William Mattar - I never thought I would get any kind of settlement. You worked so hard for me. If you've ever been hurt in a car and don't call William Mattar you will be taking a long trip down the wrong road!
William Mattar
Replied last April 28, 2016Our staff works very hard for our clients. We are happy to help Nancy.
Posted by Linda | April 28, 2016 | Hired Attorney | Personal Injury
Extremely attentive.
Mr. Mattar's staff is extremely attentive, courteous thorough and adapt at handling my automobile injury case. I am especially impressed with Claudia and Viktoria and the timely fashion in which my questions were answered- in person and on the phone. I highly recommend William Mattar law offices.
William Mattar
Replied last April 28, 2016Thank you for these kind words about your staff working on your case, it means a lot to us all.
Posted by Tony | March 18, 2016 | Hired Attorney | Personal Injury
Attentive and helpful.
My experience with the William Mattar law offices was a great and easy one. Everyone was so attentive and helpful from the front desk on up. From day one they helped me with my doctor's appointments and prepared me for any and all tricks the insurance company may have tried. All and all the experi...
William Mattar
Replied last March 18, 2016Our firm is here every step of the way. Thank you Tony.
Posted by Mark | August 07, 2012 | Motorcycle Accident
Happy I went to William Mattar
I was hit by a car while riding my motorcycle, so I called William Mattar. I was glad that I did. I recommend William Mattar.
Posted by David | June 19, 2019 | Hired Attorney | Personal Injury
Dropped case after 5 months.
My wife sustained an injuy. We met with one of William Mattar's attorneys. She told us we had a case and when I asked her about her credentials for this particular type of accident she said to us these cases were her "forte". We knew something was not right when we would not get call backs. The origi...
William Mattar
Replied last June 19, 2019We are very sorry to hear that you did not have a positive experience with our team. Each and every one of our attorneys focus on auto injuries. Based on your first name, we are not able to tell which client you are, so we are not able to view your file to see what type of breakdown in communication may have occurred. We do not have voice mail at our office and have set up our system so that anyone from our team on your case would be able to address questions and concerns, and we expect our team to return phone calls promptly. Regarding your case being 'dropped', we do not drop cases when encountering 'a little resistance', so there were most likely circumstances that were discovered during investigations or perhaps something in the medical or police records that forced the case to end. We focus on helping those with auto injuries that meet the New York State injury threshold, and only dismiss a case when we discover something that would not make it possible for us to successfully pursue the case. We encourage you to call our attorney manager, David Rusin, or phone my assistant, Dawn, to review your concerns in detail.
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