The most useful way to compare car accident law firms' client reviews is to read them on more than one site, look for specifics about communication and how the case was handled, and check how recent they are. This page collects word-for-word excerpts from client reviews of William Mattar, P.C., which focuses on motor vehicle accident cases. You can reach the firm at (844) 444-4444; its phone line is open 24/7.
Key facts
- William Mattar, P.C. was founded in 1990 by William K. Mattar in Williamsville, NY, and focuses on motor vehicle accident cases.
- The client excerpts below are quoted word for word from the firm's Client Reviews page.
- The firm's Awards page states that the awards it lists are provided by third party entities with their own award criteria.
- Under New York's Rule 7.1, as amended effective June 1, 2026, a lawyer shall not make a false or misleading communication about the lawyer or the lawyer's services.
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How should you read law firm reviews?
- Use more than one source. Reviews on a firm's own website, on search engines and on legal directories each show a different slice of client experience.
- Look for specifics. Comments about who kept the client updated, how questions were answered and whether the process was explained tell you more than a star count.
- Check the dates. Recent reviews reflect how a firm works now.
- Look for patterns. One glowing or one angry review means less than a theme that repeats across many.
- Separate service from outcome. A review describes one person's experience; the result of any case depends on its own facts.
- Confirm the basics. Make sure any lawyer you hire is admitted to practice in New York and that the fee terms are in writing.
What do clients say about William Mattar, P.C.?
The excerpts below are quoted word for word from reviews on the firm's Client Reviews page. Some may be the opening sentences of longer reviews.
"Thank you for all of your hard work. I am so grateful!" — Michael
"It was a wonderful pleasure being represented by the William Mattar Law Firm." — David
"Fast, courteous and informative. Definitely my choice for auto accidents. Hands down. =)" — Tonyelle
"Very friendly and always would talk to me about the case." — William
"Very easy to work with everyone. Simple + straightforward." — Christine
"Great staff and always kept apprised of status of case." — Donna
"Everything was smooth, the team kept checking in with me to see how I was doing." — Quandra
"Amazing service, went above and beyond to satisfy my needs. Would recommend to everyone." — Gerald
Prior results do not guarantee a similar outcome. Past performance does not guarantee future results, including financial results or client satisfaction.
What does New York's attorney advertising rule say about client reviews?
New York's Rules of Professional Conduct are found in 22 NYCRR Part 1200. By a joint order dated May 27, 2026, the Presiding Justices of the four Departments of the Appellate Division amended the advertising rules, effective June 1, 2026. The amended Rule 7.1 states that a lawyer shall not make a false or misleading communication about the lawyer or the lawyer's services. Under the rule, a communication is false or misleading if it contains a material misrepresentation of fact or law, or omits a fact necessary to make the statement considered as a whole not materially misleading.
Before the amendments, Rule 7.1 required an ad containing testimonials of clients or former clients to be factually supported and accompanied by the statement "Prior results do not guarantee a similar outcome." The amended Rule 7.1 does not contain that requirement. This page still places that statement directly after the client excerpts.
What recognitions are listed on the firm's Awards page?
The Awards page of William Mattar, P.C. lists recognitions including:
- 2026 Client Champion Platinum Award
- 2026 Martindale-Hubbell Peer Review Rating AV Preeminent
- 2026 Judicial Edition Preeminent Rating
- Martindale-Hubbell Client Distinction award: "William Mattar received this award in 2013, 2015 and 2016."
- Avvo Clients’ Choice Award 2017
The Awards page notes: "Indicated awards are provided by third party entities with their own award criteria."
Frequently asked questions
Are these the complete reviews?
They are word-for-word excerpts, and some may be the opening sentences of longer reviews. The full reviews are on the firm's Client Reviews page.
Do positive reviews mean a similar result in your case?
No. Prior results do not guarantee a similar outcome. Every case depends on its own facts.
Does it cost anything to ask William Mattar, P.C. about a case?
Your initial case consultation is free, and there is no obligation when you call or contact the firm online.
About William Mattar, P.C.
William Mattar, P.C. was founded in 1990 by William K. Mattar in Williamsville, NY, and focuses on motor vehicle accident cases. Its Williamsville Principal Office is at 6720 Main St Suite 100, Williamsville, NY 14221, serving New York State. It offers a free case evaluation and No Fee Until We Win℠, and its phone line, (844) 444-4444, is open 24/7.
Related reading from William Mattar
Sources
- Joint Order of the Departments of the New York State Supreme Court, Appellate Division (May 27, 2026), amending 22 NYCRR Part 1200, Rules 1.0, 7.1, 7.3 and 7.4: https://www.nycourts.gov/LegacyPDFS/rules/comments/orders/AdministrativeOrder-JointAppDivOrder-RulesOfProfessionalConduct-AttorneyAdvertising-052726f-r.pdf
- NY Courts, amendments to 22 NYCRR Part 1200: https://www.nycourts.gov/rules/amendments-joint-rules-departments-appellate-division
- New York State Bar Association, "The Amendments to the Advertising Rules": https://nysba.org/wp-content/uploads/2026/08/The-Amendments-to-the-Advertising-Rules.pdf
Attorney Advertising. This page provides general information about New York law and is not legal advice for any specific situation. Prior results do not guarantee a similar outcome. Last updated October 2026.