DuPuy has taught legal ethics and professional responsibility at Cornell University, Northwestern Law School, the University of Wisconsin Law School, and Marquette University Law School, and has served as a long-time faculty member of the National Institute of Trial Advocacy. For his preeminent legal ability and very high professional ethics, DuPuy has been Peer Review Rated as AV® Preeminent™, the highest performance rating in Martindale-Hubbell's peer review rating system.
