Only if she is unfit or willing. Otherwise the most he can get is shared custody.
yes
That depends on the custody order, but she can file for a change of custody.
He can move in with his mother only with the father's permission. Otherwise the mother needs to petition for a change in custody from the court that has jurisdiction.
Yes you can gain custody of her.
Not if the mother still have custody. He better have a good explanation to tell the judge why he has not seen his child for a year. If he has a good reason they would probably start with visitation. Full custody he can not get unless the mother is unfit.
She can probably get her father to appeal for custody.
see links below
The mother already has sole custody. The father has not rights. see link
An 18-year-old can live wherever he or she chooses.
well by law, he is now a adult, so he can make his own decissions, but i do not think his father can no longer get custody because he is 18, but im not 100% sure
If mother has custody, then she has all the say until the girl turns 18. If she objects, then the girl must obey.
who can help a unmarried mother in California get legal and physical custody for free