Fr. Seidel was born and raised in Billings, MT. After attending public school through 8th grade he transferred to the local Catholic High Schoo, Billing Central. It is there that Fr. Seidel began to personally engage in his faith and ultimately found his vocation to the priesthood.

After high school, Fr. Seidel attended Gonzaga University while in priestly formation at Bishop White Seminary. From there he went on to study theology in at the Catholic University of America in Washington, D.C. and was ordained a priest in 2014.

As a priest he has served as a parochial vicar at St. Mary's in the Spokane Valley and the Cathedral of Our Lady of Lourdes. He was then made the administrator of the parishes in Medical Lake, Reardon, and Sprague. During this time he also served a chaplain to the Spokane Police Department, a formation advisor to and theology instructor for Bishop White Seminary, and a board member for the Catholic Foundation of Eastern Washington.

In the Fall of 2018 Fr. Seidel moved to the Walla Walla Catholic Schools where he began as the chaplain, theology teacher, and board member. In July of 2019, Fr. Seidel took over as President of the WWCS and began a Master of Arts in Educational Leadership through the University of Notre Dame's Remick Leadership Program. Currently, Fr. Seidel serves as President of the schools, the Senior Theology teacher, as well as his work in the parishes.