If the attorney of record in the court file is incorrect, then you would serve your motion under CCP 724.050 directly on the assignee of the debt (the current judgment creditor).
From my perspective, this seems like a fairly straightforward matter -- but, perhaps I'm missing something important.
It's very difficult for me to provide you with a competent answer in this forum, because I need to review the case file and surrounding facts. I realize that you're coming to Justanswer for a cost-effective legal solution to your difficulties. But, sometimes, you need to hire a lawyer, if for no other reason than to straighten out the issues so that you can proceed without facing a continuing "wild goose chase."
If you give me your email address, I can contact you directly and we can discuss this matter offline. Otherwise, the only competent answer that I can provide is the one I've already provided.
I hope I've answered your question. Please let me know if you require further clarification. And, please provide a positive feedback rating for my answer (click 3, 4 or 5 stars) -- otherwise, I receive nothing for my efforts in your behalf.
Thanks again for using Justanswer!