Lat - the secured party is not disposing of or selling the collateral in this case. Additionally, the debtor can't just simply write a letter and wash their hands of it. It doesn't work that way and we both know it. I believe you are misinterpreting something, somewhere.
I'm aware that the bank has taken no action towards exercising its rights to the collateral. But that delay is the hub here. And I don't think that these people understand that the bank must first dispose of the collateral, nor the methods of disposition required in that process before pursuing a deficiency judgment and their rights if the creditor fail in those processes?
But since you've raised the issue, why don't you tell us "
how it works". Explain for us if you will the conditions precedent and processes and implications of the secured creditor obtaining a deficiency judgment.
Including how the attorney for the bank in suing for a deficiency judgment would counter the debtor's argument that she is entitled to off set against that claim the difference in what the bank received in disposing of the vehicle 18 plus months after the account went into delinquency and what it could have obtained had it acted timely in effecting the disposition of the collateral.
Perhaps the point has no merit, but I would put the bank on notice that I intend to pursue it.