Catherine Jeanne O'Suilleabhain
as of 6/18/2026 8:11:44 AM
Catherine Jeanne O'Suilleabhain
The Quinlan Law Firm, LLC
233 S. Wacker Drive 61st Floor
Chicago, Illinois 60606-6359
(713) 851-3917
cos@quinlanfirm.com
Date Admitted
November 08, 2007
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.