lien cancellation document for lot and modular home purchase

[Tidal Creek]

I’m trying to buy a lot which has a modular home on it. I want to keep the modular to repair and rent it out. The owner paid off the note on the modular, but can’t find a signed lien cancellation document. For some strange reason since it’s modular, there is DMV involvement with the paperwork. To close the deal I’ve been told to get a duplicate of a lien cancellation that was provided after the seller paid off the company that financed it. Has anyone ever dealt with this? Any suggestions? Thanks