Jack O'Shea
Biographical
John “Jack” O’Shea is an associate attorney at Laffey, Leitner & Goode LLC. Born and raised in Milwaukee, Jack’s practice is grounded in the values of hard work, integrity and kindness. Naturally curious and intellectually driven, he approaches each client matter with enthusiasm and attention to detail. Jack values collaboration and is focused on contributing to the success of both his clients and the firm. His dedication, careful preparation and detail-oriented approach to advocacy reflects his commitment to delivering meaningful results and achieving justice for those he serves.
An accomplished graduate of Marquette University Law School, Jack served on the Marquette Law Review editorial board and represented the university in national competitions as a member of the Moot Court Board.
Practice Areas
Education
Marquette University College of Law/J.D., 2026
Marquette University/B.S., Finance, 2022
Associate editor, Marquette Law Review/2025-2026
Editorial staff member, Marquette Law Review/2024-2025
General board member, Marquette University College of Law Moot Court/2025-2026
Intern for Milwaukee District Attorney office/2025-2026
Community
Member, Marquette University Center for Peacemaking/ 2022


