On the Job
Attorney Kieran O’Day’s Practice
Attorney Kieran O’Day is an associate in Stafford Rosenbaum’s Madison office. He practices government and municipal law, advising municipal clients in various aspects of the municipal realm, including leadership, policy, and land use issues that include zoning and subdivision regulation. In addition to municipal matters, Kieran works with business clients, advising and representing them on contract drafting, review, and negotiation; compliance review; and real estate transactions. Kieran is also a litigator, concentrating this area of his practice on municipal, appellate, and corporate litigation. Kieran is incredibly detail-oriented, collaborative, and pragmatic in his approach to resolving client issues and questions, providing thoughtful yet efficient solutions to both routine matters and special projects.
Kieran previously worked as an Assistant Attorney General in the Criminal Appeals Unit at the Wisconsin Department of Justice, where his work was centered on appellate writing and advocacy; there, his experience included argument at the Wisconsin Supreme Court in State of Wisconsin v. McBride (21AP311). Prior to his work with the DOJ, Kieran served as the Judicial Law Clerk to Chief Justice Patience Drake Roggensack of the Wisconsin Supreme Court, where he gained invaluable legal research and writing experience.
While studying at Marquette Law School, Kieran received several recognitions, including those for coursework achievement, Marquette Law Review involvement as a member and editor, as a student associate at the Marquette Law and Entrepreneurship Clinic, and moot court competition and membership. Kieran maintains connections to Marquette by coaching law school students during the National Moot Court Competition and by judging briefs and oral arguments for the Jenkins Intramural Moot Court Competition.
Kieran’s Court Admissions
- State of Wisconsin
- U.S. District Court for the Eastern District of Wisconsin
- U.S. District Court for the Western District of Wisconsin
- U.S. Court of Appeals for the Seventh Circuit
- U.S. Supreme Court
Kieran’s Education
- Marquette University Law School (J.D., cum laude)
- University of Wisconsin-Milwaukee (B.A., Political Science)
Kieran’s Presentations & Publications
- Co-Author, “Does the Proposed AI Disclosure Rule Create More Problems Than It Solves?” InsideTrack, State Bar of Wisconsin, May 13, 2026
