No. As parents you already have custody but a judge can not give you a guarantee that no matter what will you keep that. The best of the child comes first and if you for some reason is found unfit down the road the child would need a new guardian.
If you are divorced and granted custody that court order is valid unless the other parent (or the state) get custody for whatever reason (if both parents become unfit etc). And custody lasts until the child is 18. You can not get a guarantee from the judge that you as a parent will have custody until the child is 18. There are 2 parents and according to the law both are allowed to seek custody of their child.
If they have not gone through the courts, then the custody depends on the agreement of the couple. There is no hard and fast rule.
With the aide of a lawyer and the courts.
Only if both parents agree that you should do so. Most have court ordered custody and that has to be resolved through the courts if they do not agree.
Custody is granted by the courts, and that's where you need to go.
In many jurisdictions, a minor child can express a preference to live with a grandparent, but the final decision typically rests with the courts or parents, depending on custody arrangements. Courts generally consider the child's best interests, including their emotional and physical well-being, when making custody decisions. If the parents agree or if there are compelling reasons, a grandparent may be granted custody or guardianship. It's advisable to consult legal professionals for specific laws in the relevant area.
can any uncle get custody of his nephew even if he has a felony Yes, if there's a reason your parents won't or can't keep you. It's a matter decided by the courts. Perhaps. If the parents voluntarily relinquish their rights or the court permanently teminates parental rights then relatives or interested person's may petition the court for guardianship of the minor children. Allthough courts prefer minor children remain within the custody of relatives, there is no guarantee a guardianship request will be granted to any relative or friend of the family.
If the parents are going to split up, one needs to file with the courts to define custody, child support, visitation, etc.
An illegal alien slated for deportation can sue for full custody if he or she wants. However, it is extremely unlikely to be granted. The courts will normally side with the parent who is remaining in the US.
The mother has sole custody and control in all US States. see links below
You may arrange visitation through the courts.
If this was done through the courts, then no.
The only way is legally, through the courts.