Depends on related factors. If this involves Parental Alienation on your part, his chances are fair. Consider offering bird nest custody.
No. The biological father have rights. Unless the court find him unfit to have custody then there might be a chance.
He fights for custody.
only if mum has custody
the biological father is next of kin
No, unless the baby's biological father relenquishes his parental rights, he would get custody of the child if the mother dies, not her husband. The biological father must sign his rights away to the mother's husband.
Custody issues are decided by the courts on the basis of the best interest of the child in question. If the child is likely to be cared for better by the father than by the grandmother, then yes, the father would have a good chance of winning custody.
Unless the biological father has relinquished custody, he can ask the court to grabt custody in case the mother dies or cannot take care of herself.
yes, through the courts
No he does not.
No, although most courts favor custody to the mother.
No. Legal custody must be established by a court order.
Yes, she can. All she has to do is press suit to have custody awarded, or convince him to give her custody.