Your spouse's income is not included in a CS calculation. ...

Yes, you need to attend court. If you are requesting the CS and don't show, you lose. .

Just go no contact with this relative and live your life. ...

Do not file a new case. The case needs to be moved from FL to MO since FL no longer has jurisdiction (if father has already moved).

Children are not the deciders of where they live. That is done by agreement of the parents or a judge. The older the child is the more weight is...

It's too late for that unless the "father" agrees. Both of you committed fraud. A change of a birth certificate requires a court order.

Children do not make the call as to where they live. That is done by agreement of the parents or the judge. The older the child, the more weight...

Your wife needs to go no contact with her mother and that means she can't live there. .

You will need to evict him/them. ...

Call Adult Protective Services in KY and they will investigate. ...........................................................