5th wheel titles as a mobile/manufactured home?

Either somebody at DMV messed up (likely) or it was deliberately deregistered so it could be mortgaged. I bought a mobile home on a city lot, the bank got a little excited upon discovering it had never been deregistered. Seems the previous owner's lender had neglected that tiny but important detail, there was nothing to prevent it being permitted and towed out. I had to pay a minor fee to get it done.