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William F. O'Brien


WILLIAM F. O’BRIEN is an associate with LUCAS AND CAVALIER, LLC. His areas of practice include casualty defense and commercial litigation. While in law school, Mr. O’Brien clerked for the Honorable Arnold L. New in the Court of Common Pleas, Civil Division, Philadelphia County. He also interned for Styliades & Jackson, the Philadelphia Eagles, and Lucas and Cavalier, LLC. Prior to law school, Mr. O’Brien attended Lehigh University where he was a captain and two-time all Patriot League safety on the football team.


·        Juris Doctorate, Drexel University Thomas R. Kline School of Law, 2016

·        Bachelor of Arts, Lehigh University, Political Science, 2013


·        Pennsylvania

·        New Jersey



Serving your litigation needs in Pennsylvania and New Jersey



1500 Walnut Street,  Suite 1500
Philadelphia, Pennsylvania  19102
Phone (215) 751-9192     
Fax (215) 751-9277

New Jersey
126 White Horse Pike, Third Floor
Haddon Heights, New Jersey  08035
Phone (856) 546-7172     
Fax (856) 546-7110


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