and on 23 December 2017, a member of the Pontifical Commission for Vatican City State. In July 2018, the University of Dallas named an administration building after Farrell, a former chancellor. On 14 February 2019, Pope Francis named Farrell as camerlengo of the Holy Roman Church.

In June 2019, Farrell admitted receiving a $29,000 gift from Bishop Michael J. Bransfield