O'Connor & Thomas, P.C.
A. John Arenz
Senior Counsel

(563) 557-8400

John Arenz was born in Dubuque, Iowa. John graduated magna cum laude from Marquette University in 1975, where he was a member of the Phi Beta Kappa honor society. He obtained his law degree, cum laude, from Georgetown University in 1978. While at Georgetown, John was a member of the Student Editorial Board of The Tax Lawyer. He returned to Dubuque after law school and was admitted to the Iowa Bar in 1978, joining our firm that same year.


Trial Law, Personal Injury, Litigation, Workers' Compensation


Georgetown University Law Center, Washington, District of Columbia, 1978
Honors: cum laude
Law Review: Student Editorial Board, The Tax Lawyer, 1977 - 1978

Marquette University, Milwaukee, Wisconsin, 1975
Honors: magna cum laude
Honors: Phi Beta Kappa

Bar Admissions

Iowa, 1978
Wisconsin, 1985
U.S. District Court Northern District of Iowa
U.S. District Court Southern District of Iowa
U.S. District Court Western District of Wisconsin
U.S. Supreme Court

Extended Biography