You need to ask this in a CANADIAN forum, if that exists. You posted in Kentucky.

He would be forced to take the paternity test. You will get faster results with an attorney.

Without court orders you don't have to do anything.

The child support tables have changed in the last couple of years, but there may be an error. She doesn't just get to quit her job and should be...

She can easily get these documents on her own. I don't think there is a law preventing you keeping what you have though.

You can name whomever you want to have this power with an advanced directive & living will. Most states have free forms for this.

You can't stop them from intervening, but you can report her for fraud.

You need to file a custody case against GPs. You should consult with a lawyer where the case will be.

CPS doesn't allow anyone with a CPS history to take possession of children.

Your husband needs a parenting plan. Find out if the DV cases can be expunged. You can't sue her.