Two William Mattar Accident Lawyers Attorneys Admitted to Practice Before Supreme Court of the United States
Attorneys Lou Mattar and Peter Mattar have earned admission to practice before the U.S. Supreme Court, highlighting their professional achievement and dedication to legal advocacy.

BUFFALO, NY, May 28, 2026 -- William Mattar Accident Lawyers is proud to announce that attorneys Lou Mattar and Peter Mattar have been admitted to practice before the Supreme Court of the United States. This distinction reflects their commitment to excellence in the legal profession and their continued dedication to advocating for clients at the highest levels of the judicial system.
Admission to the nation's highest court is reserved for attorneys who have demonstrated strong ethical standing and professional achievement. While most cases are resolved in lower courts, this milestone underscores Lou and Peter Mattar's deep commitment to their legal careers and their readiness to handle complex legal matters.
"On Monday, April 27, I made a motion before the Supreme Court of the United States to allow Peter and Lou Mattar to practice and appear before the Court. All Justices were present, and the motion was granted by Justice John G. Roberts, Jr.," said William Mattar. "I'm incredibly proud that not only two additional firm attorneys are allowed to appear before the Supreme Court, but that they are my children carrying on our family's legacy of fighting and standing up for others as attorneys."
Peter and Lou Mattar join fellow firm attorneys Anthony Tantillo, F. David Rusin, and William Mattar to be admitted to practice before the Supreme Court.
About William Mattar Accident Lawyers
William Mattar Accident Lawyers represents individuals injured in motor vehicle accidents throughout New York State. With a focus on car, motorcycle, truck, and rideshare accidents, they have been advocating for clients since 1990 and are the largest motor vehicle accident firm in New York State. * For more information, visit https://williammattar.com/
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Contact Information
Dawn WaggonerWilliam Mattar Accident Lawyers
Buffalo, New York
United States
Voice: (716) 444-4444
Website: Visit Our Website
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