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Michael J. Brennan


Michael J. Brennan was appointed as Chairman of the Illinois Workers’ Compensation Commission by Governor JB Pritzker on March 15, 2019. He previously served as a Public Member Commissioner since 2013. He co-chaired a Rules Committee which resulted in the first comprehensive review and modification of the IWCC Rules of Practice in decades. Revised Rules were unanimously approved by the Legislature and Commission in October of 2016.

Mr. Brennan earned both his Bachelor of Arts and Juris Doctorate Degrees at De Paul University. He has practiced law in Illinois and has litigated numerous cases reported by the Illinois Appellate Court, the Illinois Supreme Court and the U.S. Supreme Court. Mr. Brennan was engaged in private law practice from 1991 through 2013, with an emphasis on Workers’ Compensation.

He previously served as an Assistant Attorney General, from 1977 through 1991, where he prosecuted Civil Revenue and Criminal Medicaid Fraud cases, before becoming the Chief of the then Industrial Commission Division. He was among the principal authors of the Larson’s Illinois Workers’ Compensation Handbook, and has published numerous articles dealing with Illinois Workers’ Compensation issues for Quinlan’s, Thomson West and Reuters. He has been qualified and testified as an expert on Workers’ Compensation matters and has lectured extensively on the topic. He is a member of the Chicago Bar Association and Workers’ Compensation Lawyers’ Association.

He has been elected by his peers as a Martindale-Hubbell Rated AV Preeminent Attorney for over Twenty Years, an Illinois Super Lawyer, an Illinois Leading Lawyer, named as among the Best Lawyers of America and among the Top Attorneys in Illinois by Chicago Magazine.