First off, a single mother, regardless of status, has sole custody. The father has no assumed parental right, so he will be starting from scratch. Can he get custody? There's no more guarantee in this than for any single father. see link
He has the right to petition the courts for visitation.
The only one with custody of the unborn child is the pregnant mother. After the baby is born, the parent wishing custody or visitation can file for the same in the appropriate court of jurisdiction (where the child legally resides after its birth).
see links
It depends on the type of joint custody. Custody is broken down into two subcategories- legal and physical. Legal custody is the ability to make decisions concerning the child and to act on the child's behalf. Physical custody is who the child lives with. Typically unless the child spends exactly 50 percent of the time with each parent, one parent is considered to have primary custody and the other parent to have secondary custody or visitation rights. Child support is based on who has primary physical custody, and that parent is typically awarded child support from the parent who has the child less since having the child more usually means that you provide for more of their needs as well.
see links below
see links below
In those countries where it is allowed, 0% is illegal. In those countries where it is not then 100% is illegal.
The number of illegal immigrants in the U.S was estimated at 11.5% in 2011.
50% of anything is one half. With 50% physical custody the child would split their time equally between the parents.
69%
Consult your lawyer immediately as you may have a case to get full custody.
Sending him to dad isn't going to solve the problem. Have you tried to get him help either through the school or mental health? Maybe you can get him into a boot camp, but he is your son and you need to try to find him help.