When a Chapter 13 plan is in force (from the date of filing of the petition
of bankruptcy, until the case is closed), there is a stay on all creditor actions to try to collect a debt. A violation of the stay gives the debtor (you) a legal action against the creditor in bankruptcy court for violation of the bankruptcy stay. In other words, you can sue the creditor for trying to get a deficiency judgment and receive damages for the violation.
Re how a deficiency judgment could be enforced against you, it's pretty simple: The creditor takes the judgment and "registers" it in your new state, and then it can collect against you, exactly the same as if you were living in Alabama.
However, if the creditor is in violation of the bankruptcy stay, then you can stop the creditor dead in its tracks.
For a bankruptcy attorney referral in your jurisdiction, see this link.
Hope this helps.
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