As to the valid/licit point, I still do not think we are communicating.The analogy is of the functioning of a bishop, if validly consecrated. A validly consecrated bishop may convey the sacrament of orders, for example, validly, though not licitly, even if he is declared heretical, schismatic, simonistic or excommunicated (Ott), p. 458).
Yes, he can. That is because some sacraments can be administered simply because one is a bishop, priest or deacon, and, in a limited number of cases, by a layman. A cleric’s ordination is enough. For example, a priest can baptise and celebrate Mass validly just because he is a priest.
However, there are some sacraments that require
both the
power of orders, i.e. one is ordained,
and jurisdiction, commonly referred to as faculties, to be valid. Marriage and penance are two examples.
A priest cannot absolve a person’s sins unless he is
both a priest
and has faculties from his ordinary. If he lacks the latter if he says over a penitent ‘
Ego te absolvo/I absolve you …’ the sacrament is invalid, it does not happen, the person is not absolved.
Similarly, if a priest officiates at a marriage and he does not have the jurisdiction granted by Canon Law, for example, he is the parish priest of the place, or granted by his ordinary the marriage is not just illicit. It is invalid. It has not happened. The couple are not married.