Being "judgment proof" is not something someone can do. It is a situation where a person has no assets that can be taken for a judgment. Wisconsin exempts about $10,000 worth of personal property. So if a person has no assets they are sometimes called "judgment proof."
Yes you can move to reopen the case, conduct discovery and seek a new judgment and sanctions against your ex if you can prove he concealed assets. In Wisconsin modification is clearly permissible and warranted when the original decree was based on significantly incorrect or fraudulent information. Because the law provides requires the parties to provide full disclosure of assets and liabilities, providing incorrect information to conceal assets is a fraud on you and the court. If proven, the...
PDs are under a lot of pressure dealing with a lot of cases. If you can afford it, obtain your own attorney. It will cost some money but may well be worthwhile in the long run. Don't let anyone pressure you or your son into anything without fully explaining the options and why they are suggesting that course of action.
Once you finish your work, in this case books, they are entitled to copyright protection immediately. What you want to do is file for copyright registration with the federal government. That will give you even greater protection and more damages if anyone ever infringes on your copy rights.
Yes. I would accept service and file an Answer, Affirmative Defenses and perhaps a Counterclaim. at the very least file an Answer and buy yourself a few more months. Even if they get a judgment of foreclosure, you will have another six months before you have to leave.