How much to file for child custody in th state of WV?

Look up filing fees in your state. The court will have a website.

There is an outstanding child support order for more than $20k for my daughter (now age 21). Her father moved from Maine to CT.

Please consult an attorney from Avvo in your area.

Can I sue or press charges for money given to a significant other based on false pretense if the party is in another state?

Yes you can. Speak with a civil attorney in your area.

Is there a set amount that should be imputed for minimum wage when doing a child support modification?

Typically yes a party that is unemployed will get attributed minimum wage for your state.

We are looking for a lawyer that can help us with grandparents right.

There are plenty of lawyers on Avvo that will be great for your case.

I recently moved to Nevada. I want to change my daughters last name, how long after I serve her father does he have to object?

It is typically 20 days or so, may be different in your state.

On Child Custody: The father is a lawyer and lied in court.

It can be a hefty punishment granted you can prove it.

My fiance and I live in Ohio however he has child support rearage and current payments in indiana we want to get married.

I don't see a question here, please resubmit.

You should look into government services in your state that will do the adoption for free.

Does the default child support order get stopped? Will I get a child support payment anyway?

Typically trying to set aside the default will not stop the obligation to pay.