The Pope Leo XIII Institute uses a variety of educational strategies and methods. Our very popular evening case studies supplement our lectures and presentations at the Institute. Great care in the selection of particular case studies ensures congruence with targeted topics and learning objectives. Often, our interactive case studies highlight themes, reinforce methods of analysis, spark lively debate, encourage mastery over various frameworks to understand particularized problems or issues, and develop skills to be honed through the rigors of facing evil directly.

Meet our faculty and case study facilitators:

Msgr. John Esseff

President of Board of Pope Leo XIII - Speaker Summer 2016 Conference

Msgr. John A. Esseff is a Roman Catholic priest in the Diocese of Scranton. He was ordained on May 30th 1953, by the late Bishop William J. Hafey, D.D. at St. Peter’s Cathedral in Scranton, PA. Msgr. Esseff served a retreat director and confessor to Blessed Mother Teresa. He continues to offer direction and retreats […]

Rev. Dennis McManus, Ph.D.

Curriculum Consultant

Rev. Dennis McManus has taught at Georgetown University since 1997. He holds a master’s degree in historical ethics from Georgetown University and a doctorate from Drew University in historical theology. At present, he is on the faculty of the Program for Jewish Civilization in the School of Foreign Service, where he offers courses in the […]

Rev. Chad Ripperger, Ph.D.


Fr. Chad Ripperger, Ph.D. is a Theologian, Thomistic Psychologist, Philosopher, and Author. Fr. Ripperger has served as professor of Dogmatic and Moral Theology and Philosophy at Our Lady of Guadalupe Seminary in Denton, Nebraska. Father Ripperger was ordained in 1997. He currently works in the Diocese of Tulsa. His published works include “Introduction to the […]

Rev. Cliff Ermatinger


Fr. Cliff Ermatinger has worked as a spiritual director, retreat master, and lecturer on spirituality for many years. He has a BA from Gonzaga University in philosophy, a Classical Humanities degree from Salamanca, Spain, a PH. L. and STL from Regina Apostolorum Pontifical University and also studied spirituality at the Teresianum in Rome. He was […]

Facilitators, Case Study Method Scenarios

Our exorcists face the issues raised by each case study scenario in small groups. Each case is real. Two trained and experienced priest facilitators direct each small group discussion with several points and learning objectives in mind. Discussions afford our priests the opportunity to critically investigate and assess fact patterns, share the depths of their observations, debunk myths, detail and develop specific techniques, and apply successful strategies and approaches.