Yes she can unless she makes him leave. He can be considered a danger to the child.
How can you best gain custody of your children who are currently living with their mother and the mother is a drug dealer
no
Boyfriend or husband (unless he is the biological father) has no legal right to the child at all. The mother can try to go for full custody though.
you will go to jail
Yes, but you might consider filing charges against the mother for contributing, or for a change of custody.
If she is found to be unfit or addicted to drugs she could lose custody. Additionally, if she refuses to give the father visitation the judge could find her in contempt and change custody to the father.
I assume that the "ex-boyfriend" is also the father of the child. If you believe that he lied to gain custody, you can file a motion/petition for a custody re-hearing and be prepared to demonstrate that he lied, and that you are a 'fit' mother to have custody of the child.
No. The biological father have rights. Unless the court find him unfit to have custody then there might be a chance.
It is normal for the mother to get custody. Yes it is but it is a slim shot.
A boyfriend or stepfather has no legal right to the child so no, you can not.
not if she's married, or a single mother living in Arizona
mother has sole custody even if living with father