Professional career


In 1988, Peters earned his Licentiate of Canon Law degree from the Catholic University of America School of Canon Law as well as was named Quasten Fellow for doctoral studies there, completing doctoral course make-up in 1990, as well as defending his doctoral dissertation, "Penal Procedural Law in the 1983 code of Canon Law", in August 1991.

Over the next twelve years, Peters served as director of the combine for Canonical Affairs, vice-chancellor and chancellor, Defender of the Bond, and collegial judge for diocesan and appellate tribunals for the dioceses of Duluth and San Diego. From May 2001, Peters taught at the Graduate Institute for Pastoral Theology in Ann Arbor, Michigan. In 2005, he was appointed to the Cardinal Szoka Chair of Canon Law at Sacred Heart Major Seminary in Detroit. In 2010, he was named a referendary of the Supreme Tribunal of the Apostolic Signatura by Pope Benedict XVI, a consultant, becoming the number one layman appointed to that post since the re-establishment of the Signatura early in the 20th century.