Maureen O'Brien
as of 6/18/2026 4:56:29 AM
Maureen O'Brien
O'Mara, O'Callaghan
230 West Monroe Street Suite 2620
Chicago, Illinois 60606-4726
(312) 600-5588
Not available
Date Admitted
November 16, 1984
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, maintains malpractice insurance.