He attended Saint Stephen Elementary School and Saint Andrew High School before entering Sacred Heart Seminary, where he obtained a Bachelor"s degree in Philosophy in 1962. He then studied at Saint John Provincial Seminary in Plymouth.
He served as an auxiliary bishop of the Archdiocese of Detroit until Pope Francis accepted his resignation on November 11, 2015. Reiss was ordained to the priesthood by Archbishop John Dearden on June 4, 1966. He did his postgraduate studies at the University of Detroit, earning a Master"s degree in Religious Studies (1972) and a Master"s in Education (1973).
He also received a Master"s in Divinity from Saint John Provincial Seminary in 1974, and a Licentiate of Canon Law from the Pontifical Gregorian University in Rome in 1984.
Reiss served as campus minister at the University of Michigan and at Henry Ford Community College, and dean of admissions and academic dean of the School of Theology at Sacred Heart Seminary. He also served as defender of the bond on Archdiocesan Metropolitan Tribunal, director of the Archdiocesan Department of Education, and Archdiocesan Vicar of the Southland Vicariate.
He served as pastor of Holy Ghost Parish in Detroit, Saint Mary Parish in Portuguese Huron, Ss. Peter and Paul Parish in Detroit"s Westside, and Saint Frances Cabrini Parish in Allen Park.
On July 7, 2003, Reiss was appointed Auxiliary Bishop of Detroit and Titular Bishop of Remesiana by Pope John Paul World War II He received his episcopal consecration on the following August 12 from Adam Cardinal Maida, with Edmund Cardinal Szoka and Walter Schoenherr serving as co-consecrators.
He selected as his episcopal motto: "In Christo Omnia" (Philippians 4:13). He was diagnosed with esophageal cancer in 2008 and it has been in remission since 2009. He submitted his resignation as bishop as required on his 75th birthday, and Pope Francis accepted it that day.