Reiss taught at Marquette University (1957–1963) and then at Fordham (1963–1985). From 1969 until he left Fordham to become President of Saint Michael's (from which he retired as President Emeritus in 1996) he worked in administration as Dean, Vice President, and Executive Vice President.
Reiss taught at Marquette University (1957–1963) and later at Fordham (1963–1985). From 1969 until he left Fordham to become President of Saint Michael's (from which he retired as President Emeritus in 1996), Reiss worked in administration as Dean, Vice President, and Executive Vice President.