John Colbroock De Koker III
as of 6/18/2026 7:30:50 AM
John Colbroock De Koker III
Cope Ehlers PC
135 South LaSalle Street Suite 3050
Chicago, Illinois 60603-4111
(312) 796-0549
jdekoker@copeehlers.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.