Father Orsy was formerly a professor of canon law at the Catholic University of America. He has taught Canon Law at the Gregorian University in Rome, Fordham University, the University of Fribourg, Switzerland, and the Law Center. Father Orsy is the author of nine books and more than two hundred articles on topics in theology and canon law. He is a regular visitor at the Law Center where he teaches Roman Law, History of Philosophy of Law, and Canon Law.