There are two ways to handle this - 1) there has to be a judgment and a court order to garnish wages. You will need to file a motion to vacate the judgment and request a new trial; 2) Perhaps it's just easier and cheaper to file a Chapter 7.
It depends on the desired outcome. As you probably know, the condo association can initiate a foreclosure. Thus, if it is your goal to become current on your condo fees, you will need to file a Ch. 13.
However, given that you have many unsecured obligations, it might make sense to file a 7, get rid of your unsecured obligations (I am guessing that the trustee will be uninterested in your time share), and then, if needed, file a 13 to become current on your secured obligations.
A motion is simply a party's request to a court to do something. It is unclear from your fact pattern as to whether a hearing is on a foreclosure matter or on a subsequent collection matter.
In Maryland, a mortgage creditor is entitled to collect on the post-sale deficiency, i.e., if you owed $200k, and the home was sold for $100k, the lender can pursue you for the remaining $100k.
However, it happens infrequently.
Is your ex going to issue a 1099? If yes, then there will be tax consequences. Is it possible to simply state that the amount owed remains in dispute, and you are settling for $XX.00 to simply close the matter?
Nothing good - body attachment is a distinct possibility. However, you do not have to ignore the interrogatories, you can just file a motion and request more time to respond (if you have a valid reason).