Usally you have to go though the courts,unless you and her can come to some agreement.
It's possible.
Yes it is possible for the mother to get custody, if she can prove that the child is better off with her. Custody can change at any time, regardless of where the parent live. Some judges might put limitations on somethings, but yes it is possible.
if she's the biological mother
Yes, this is possible.
If father was awarded custody before and his circumstances have not changed, unless the mother's situation has improved dramatically the father has a good chance of maintaining custody.
No. If the child's' mother calls the police you could loss custody of your child and possible go to jail. If I was you I would contact a lawyer who specializes in child custody cases. If you can get a notarized letter from the mother saying it is okay and giving you full custody.
It is possible for any family to lose custody of a child if the child is not well taken care of.
the father gets the custody of the child if the mother dies
In 49 states, she has sole custody until designated otherwise by a court under ALL POSSIBLE circumstances. see link
wife
You are required to live with the parent that your custody decree awarded custody to. It doesn't matter what you want. If your dad has custody and you run away to live with your mom instead, it's even possible your mom could go to jail for this. If you think you can convince a court that it's in your best interest to modify the custody decree and award your mother custody instead, then you can always get a lawyer to petition the court to revise the custody decree.
Yes, a mother can fight for custody. Unfortunately, the courts are going to tell you no, if you can't prove the change in custody is beneficial to the child's well being.There were reasons why the father was granted custody in the first place. Generally, there must be a change in circumstances in order to take the case back to court. If nothing has changed there is no reason for the court to spend time going over the same case again. Perhaps the mother can prove to the court that the factors leading the court to award custody to the father have been addressed. Perhaps the child is better off with the father. The mother needs to convince the court that a change in custody is in the best interest of the child and not the mother's interest.