You can request a lower amount of garnishment but it is unlikely to be granted.

You may have a defense. Consult with experienced landlord tenant attorneys in the state where this occurred.

It is not required to allow payments before a lawsuit is filed.

Unless there is an agreement not to sue if payments made, they can bring a case.

Your ex can be forced to now quitclaim. You may have a lawsuit against your attorney or and your ex as now the property is subject to the lien.

If it is beyond the statute of limitations you do not have to pay. Otherwise you can negotiate or look into bankruptcy.

This case would be of questionable viability. And, Suing could cause greater problems in the future.

Get a new attorney and initiate fee dispute or a lawsuit.

No lawsuit is allowed on a bankruptcy discharged debt.

First, fight the case. Judgments stay on for at least 7 years.