After about 42 years from her taking up the life of a religious, in 1726, Ignacia wrote a set of rules for her religious group, finalised constitutions for a congregation, and submitted this to the Archdiocesan Chancery Office of Manila for ecclesiastical approbation, which the Fiscal Provisor of Manila formally granted in 1732, along with the rules in use among other religious women. Ignacia, now 69 years old, decided to resign as mother superior of the order, and lived as an ordinary member until her death at 85 on September 10, 1748. She died on her knees after receiving Holy Communion at the altar rail of the old Jesuit Church of San Ignacio in Intramuros.