After renewing vows during the period of Junioriate, members of the Canons Regular of St. John Cantius profess final vows of poverty, chastity and obedience. Before final profession of vows, members of the Institute are to draw up a will, that is valid in a civil court, dispensing of all of their material and monetary possessions.
A member of the Institute may renew his temporary vows annually, but the period during which he is bound by them may not exceed six years, at which point he must either profess final vows or leave the Institute.
After three years under temporary vows, a member of the Institute may request profession of final vows. All members aspiring to the priesthood must profess final vows before they are advanced to the diaconate.