Mons. Oliver was born in New York and ordained a priest in 2000 of the Archdiocese of Boston, and he is also a member of the Brotherhood of Hope, a public association of the faithful.
His efforts for the protection of minors include service as the as Promoter of Justice at the Congregation for the Doctrine of the Faith (2012-2014) and as Assistant to the Vicar General in the Archdiocese of Boston (2002-2005, 2010-2012), as well as a visiting canonical judge, promoter of justice, or defense advocate in many dioceses in the United States (2002-2012) and presenter in the training programs for child protection sponsored by the U.S. Conference of Catholic Bishops (2003-2008).
Mons. Oliver holds a doctoral degree in Ecclesiology (S.T.D.) from the Pontifical Gregorian University in Rome and a doctoral degree in Canon Law (J.C.D.) from The Catholic University of America in Washington DC.
His work included the preparation of the policies and procedures that are used in many dioceses, religious institutes, and associations of the Christian faithful.
Mons. Oliver taught theology and canon law at St. John’s Seminary in Boston MA (1997-2010), where he also served as Dean of Students (2004-2007) and as Director of the Masters of Arts in Ministry program (2005-2007). He was also a Visiting Professor of Canon Law at the Catholic University of America (2010-2012).
As Secretary of the Pontifical Commission for the protection of minors, Mons. Oliver continues to work collaboratively with many Members of the Christian faithful and professionals from a variety of fields in areas related to the protection of minors and vulnerable adults.
In 2018, Pope Francis appointed Mons. Oliver for a second term to the Pontifcal Commission for the Protection of Minors.