You cannot force removal. Have the ex payoff the loan.

No Not unless the sue first or has a written signed agreement.

Yes you do. And you can serve the same type of items on the plaintiff.

Once you get back to work it may be good to look into bankruptcy.

Look into a motion to set aside the judgment for failure to lawfully serve the lawsuit. And then try to settle.

Not all cases allow attorney fees of collection to be added to the judgment. To find attorneys, search this website.

It would not likely be dismissed unless you file a motion or they do no appear at trial.

Yes you can, to the extent they did not do the work.

No you would not have a case against the attorney. If you do not believe venue is proper, you can request a change or file a motion.

Providing the facts. Everything else interferes with their analysis.