I will remember your mother and your family in my prayers during these holy days.
One thought I had about the situation you describe is that your mother's parish needs  a ministry to the sick, and especially to those who are confined to their homes, that does not depend on the priests. If we are the church, and we are, then we can, must and should minister to each other. While the sacraments of the church remain, always, an essential feature of Catholic ministry, the ministry of accompaniment, of prayer, of consolation -- the gift of time and presence -- is not reserved to the clergy. The fact is, some of them (the clergy) are very good about that kind of ministry; and some of them aren't.