In order to supplement his modest salary as a professor, he took on a number of other posts. He was chaplain of the Hospital del Amor de Dios (now Academia de San Carlos) from 1682 until his death. This post provided him with living quarters, which given his strapped financial circumstances was a major benefit. It also was a steady income from celebrating masses for a fixed fee. He also served as Chief Almoner for the Archbishop of Mexico, Don Francisco de Aguiar y Seijas, distributing alms to poor women, a charity the "misogynistic prelate could not abide."