Jeffrey A. Masson
as of 6/18/2026 8:48:04 AM
Jeffrey A. Masson
Thompson Coburn, LLP
One U.S. Bank Plaza
St. Louis, Missouri 63101-1612
(314) 552-6429
Not available
Date Admitted
February 13, 2018
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.