Family Law Questions? Ask a Family Lawyer Online.
You can file for sole custody of the children and get your son to sign a consent form agreeing to the arrangement. You will tell the Court the reason for your request just like you did on your post here: the mother is unfit, has abandoned the children, hangs around with the wrong people and drug dealers. Her environment is not conducive for raising children--her living arrangement is quite dangerous for the children.
You would obtain custody forms at the Courthouse in the Clerk's office.
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