What are the required documents for divorce?

That question is too broad to answer because each case is different. I suggest you hire a lawyer.

If you have no children and no property (or the property has already been divided), you can do a simplified divorce. The clerk of the court can help you.

Go onto your court's web site. Everything should be listed. There are lots and lots of forms to complete.

It depends if there are children involved. If no children, you must file a complaint for divorce. Assuming it is amicable, then you could file a stipulated judgment of divorce. If there are children, then you will need a parenting plan and custody schedule. If there is property, there should be a statement in the judgment that the property will be divided per an attached schedule or that the property has been divided and there are no issues. Those are the minimum documents. However, it is always a good idea to get an attorney involved to make sure that you don't miss anything.

Summons, complaint and Judgement. However, there are other things that need to be done to properly resolve a divorce case. Consult with an attorney.