William Sheffield Cowles
as of 6/18/2026 3:06:59 AM
William Sheffield Cowles
Cooley LLP
1700 Seventh Avenue Suite 1900
Seattle, Washington 98101-1355
(206) 452-8700
Wcowles@cooley.com
Date Admitted
November 07, 2019
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.