Mary was favoured by God in sin? No [/quote}
All Christians are favoured by God 'in sin' (having sinned) according to Eph 1.6. That is why God then delivers them from the guilt of their sin through the shedding of blood. Mary was favoured as a forgiven sinner. Let us see what Scripture says. MARY SAID, 'My spirit rejoices in God my SAVIOUR.' (Luke 1.47). Who is the one who needs a Saviour? Answer, the one who is a sinner. She was clearly not a great sinner or God would not have chosen her. She was a forgiven sinner. Nevertheless she was sinner enough to need a Saviour. Furthermore she went up to the Passover every year to offer up a sin offering at the Passover (Luke 2.41). Why? Because she was a sinner. Then she carelessly neglected to make sure that Jesus was with them when they began to return home. That was sinful carelessness (Luke 2.44-45). Then she blamed Jesus for it (Luke 2.48). More sin! Then Jesus pointed out that she ought to have known where He was, so she had failed in that to. A catalogue of sins.
Mary received the Holy Spirit in sin? No
If you mean while still a sinner then we should note that all Christians receive the Holy Spirit while sinners although only once they have been accounted as righteous through faith (Rom 5.6; 8.1-9). We are sinners. He comes to deliver us from the grip of sin. Mary was no exception as we will see.
gave birth to sinless jesus in state of sin? No
Yes she gave birth to Jesus as a forgiven sinner. As she had said, God was her SAVIOUR. If by 'in sin' you mean as one who was unforgiven that is a different question. But I assume you don't mean that.
in heaven in a state of sin? No
At last we can agree with you. No one is in Heaven in a state of sin. Like all of us she was washed in the blood of Jesus.
Mary was known by God since time began? Yes
ALL true Christians were known by God before time began. Their names were written in the Lamb's book of life before he foundation of the world (Rev 13.9;17.8). Like us Mary was chosen in Christ before the foundation of the world in order that she might be saved from sin (Eph 1.4 onwards).
God knew she would be the mother of Jesus since time began? Yes he's omnipotent
Quite possibly. But not through omnipotence LOL Through omniscience. God knew what all of us would do before time began.
you can tell jesus his mom was only a vessel in a state of sin. I hope you don't do that
I don't need to LOL Jesus already knows. He had to give her a sharp lesson when she tried to interfere in His ministry, even refusing to see her (Mark 3.20, 31-35). She and the rest of the family wanted to take Him away from His ministry by force, so He repudiated her. When told that His mother wanted to see Him He turned away and said, 'Who is My mother? My mother are those who do the will of My Father in Heaven'. Clearly He did not see her at that stage as doing the will of His Father.
And when th woman cried, 'Blessed is the womb which bore you, and the nipples that you have sucked' Jesus replied, 'yes RATHER, blessed are those who hear the word of God and do it.' He saw those who had been faithful to His word as more blessed than Mary. (Luke 11.27-28)