He served as Vicar General of the Diocese of Savannah from July of 2013 until May 6, 2020. He also served as Chancellor for 6 years. He completed his Licentiate in Canon Law (J.C.L.) at The Catholic University of America. From his ordination as a priest of the Diocese of Savannah on June 5, 2004, he served for two years as a parochial vicar at St. Joseph parish in Macon, Georgia. He attended seminary at the Pontifical North American College in Rome where he received his Bachelor's in Sacred Theology (S.T.B) from the Pontifical Gregorian University after graduating with a B.A. in Humanities and Catholic Culture from the Franciscan University of Steubenville in 2000.
He was born in New Iberia, Louisiana in 1978 but raised in Augusta, Georgia. He is the oldest boy of 9 children (two passed away in early childhood) of Michael and Beverly Firmin.
After his ordination, his assignments as a priest include the following; St. Joseph Catholic Church in Macon, GA for 2 years, The Catholic University of America in May 2006, and from September 1, 2007 – February 26, 2017 in residence at the Cathedral of St. John the Baptist while serving as Chancellor and then Vicar General for the Diocese of Savannah. On February 27, 2017, he assumed administration of St. Michael Parish on Tybee Island, GA. Presently, he serves as Pastor of St. James the Less Parish in Savannah, GA.
He served on the Diocesan Council of Priests, the Diocesan Finance Council, and several other boards representing the diocese. Among his other duties, he is a member of and the Spiritual Assistant of the Secular Order of Discalced Carmelites in Savannah. He is a member of the Canon Law Society of America.