as of 6/18/2026 5:54:39 AM

Samuel William O'Brien

Cook County State's Attorney's Office
50 West Washington Suite 500
Chicago, Illinois 60602-1356

(312) 603-4674

Not available

Date Admitted

May 09, 2019

Illinois Registration Status

Active and authorized to practice law

Malpractice Insurance

In annual registration, the attorney reported that the attorney, or the attorney’s firm, does not maintain malpractice insurance. (Some attorneys, such as judges, government lawyers, and in-house corporate lawyers, may not carry coverage due to the nature of their practice setting.)

Public Record of Discipline and Pending Proceedings

None

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