Since you are still married, you both have full legal rights to the kids. That remains until a court states otherwise.

No This is not common and likely rarely if ever occurs, but it does not invalidate the orders.

No. Your parental rights cannot be reinstated.

Until a court order states otherwise, you continue to owe child support.

You both will receive an equitable share of the marital assets and debts. Nobody here can provide any more details than that.

Hiring an attorney is a good place to start.

I don’t think anyone would include birthday parties in the definition of extra-curricular activities, but it would likely fall under the child’s...

Go get your car from the impound lot.

Living in a different state as your child isn’t abandoning the child.

Use the Find A Lawyer option here or Google to search for an attorney in your area.