Document the threat, look into getting a CPO, contact ICE with the information. Consider securing other forms of protection if you're comfortable...

Can husban an I live in ohio. His ex wife and four children live in Alabama . She recently called asking us to take the kids an

Is your question can you take the kids? Answer yes, but in 6 months file for custody here in Ohio. Document the time they came to live with you.

Can I take my 8 year old son and live in a different state?

Depends on what the outcome of your divorce case is.

Can I hold visitation from my child's father if he beat up his girlfriend and sent her to er

You can only stop him by asking the court to do so. Perhaps requesting an emergency order that provides his visitation time is supervised pending...

I have a restraining order against my grand child's step father on behalf of my grandson.

Not likely. He would be in violation of the restraining order.

For 12 years I have done the same job as a service representative. Now they want me to sign a no compete contract.

Don't sign it. It is likely something they want in anticipation of termination or layoff. Meet with an attorney and get this thing negotiated.

What are my options after being notified of child support over payment?

Go to court. Have the overpayment applied to future payments. Her voluntary underemployment can come back to bite her if she wants to fight.

Who has the final say in my underage marriage?

It is likely that Children's Services or Juvenile Court is your route to get permission to marry. Your parents lost custody and therefore cannot...

Can I add in a clause into my parenting plan where law enforcement can actually do something to enforce the order?

Yes, it's tricky to do but it has to be an order from the judge directing local law enforcement to act to enforce the order.

Custody hearing, I am being held in contempt from biological mother for denying visitation

Not admissible. State Statute directly addresses this issue so the court won't even hear/consider it.