I am NOT pursuing a flamewar, just trying to be sure I understand what people believe...is it the view of the Catholic leadership and therefore it’s people that Mary, physical mother of Jesus, held not only “most favored woman” status at his birth for being sinless, but also, from that point forward, never, ever, sinned? That is, she was a sinless human?
It's difficult to accept for a lot of people because they think that somehow the Virgin Mary herself had something to do with her sinlessness - that it was through her virtue or her own conduct that she did not sin. And that of course would be preposterous and even monstrous in one of God's creatures.
That is not the case -- it was entirely through God's miraculous grace and glory that the Virgin was preserved from sin, not by any means through her own merit.
If you think about it, it does make sense. God works so many miracles, major and minor, that he would certainly preserve His own mother from sin. As the new Ark of the Covenant, bearing God within her own body and - perhaps more importantly - having the nurture and raising of Him until He began His public ministry, the Virgin Mary would have to have the strongest divine support to shoulder that awesome responsibility.
Yes.
CCC 966 states:
Finally the Immaculate Virgin, preserved free from all stain of original sin, when the course of her earthly life was finished, was taken up body and soul into heavenly glory, and exalted by the Lord as Queen over all things, so that she might be the more fully conformed to her Son, the Lord of lords and conqueror of sin and death. The Assumption of the Blessed Virgin is a singular participation in her Son’s Resurrection and an anticipation of the resurrection of other Christians:
Thank for the question. The Church teaches that Mary, from the moment of conception was without sin due to the merits of her Son, Jesus Christ.
But Mary was not only "most favored woman" (poor translation) but "Full of Grace".