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William F. O'Brien

William F. O'Brien

William F. O'Brien

Personal Note

Bill began his legal career with a Plaintiff's practice in Chicago in 2006 and the following year joined Hennessy & Roach. Since that time, he has focused his practice on the defense of workers' compensation claims in the State of Illinois. Bill earned a Bachelor of Arts in Speech Communications and a Spanish minor from Eastern Illinois University. While attending EIU, he was a member of the Sigma Phi Epsilon fraternity and a scholarship athlete on the men's swim team. After college, Bill attended Thomas M. Cooley (now Western Michigan University Cooley Law School), graduating in 2005. Bill earned a Federal Externship with Honorable George W. Lindberg of the United States District Court of the Northern District of Illinois. He is admitted to practice with the Illinois State Bar and the Federal Court.


  • Eastern Illinois University, 2001
  • Thomas M. Cooley Law School (now Western Michigan Cooley Law School), 2005


  • Litigation
  • Workers' Compensation
  • Marketing
  • Business Development

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