After his ordination, Latino served as an associate pastor at the Cathedral of St. Francis de Sales in Houma, Louisiana.

He served as pastor of St. Bernadette Parish in Houma, Louisiana (1972–1987), at which time he was appointed rector of St. Francis de Sales Cathedral.

[2] The episcopal heraldic achievement, of bishop's coat of arms, is composed of a shield, with its charges (symbols), a motto scroll and the external ornaments.

For his personal arms, seen in the sinister impalement (right side) of the shield, Bishop Latino adopted a design reflecting his life as a priest of the Diocese of Houma-Thibodaux.

The design is a saltire with gold and red vertical bars on the top and bottom and silver fields on either side, the ancient arms of the Kingdom of Sicily, to reflect Bishop Latino's Sicilian heritage.

In the base of the gold bars from the upper portion have been replaced by a golden carpenter's square, issuant from the sides, to honor the bishop's Baptismal patron, St. Joseph.