Daniel Richard O'Brien
as of 6/18/2026 5:21:48 AM
Daniel Richard O'Brien
Armstrong Teasdale, LLP
7700 Forsyth Boulevard Suite 1800
St. Louis, Missouri 63105-1807
(314) 342-8014
Not available
Date Admitted
May 04, 2017
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.