Not familiar with FL, but in TX, if there is a lien, the owner still has a title-- but it has "non-negotiable" on it.
But, we are probably taking this thread off-course. My initial point was that covering up the license plate is a red flag. May not be a problem, but before even driving to look at it, I would verify that the guy IS the owner. License receipt, whatever FL has to show ownership.
And, if you are really familiar with the coach in question, you can probably determine if it belongs to this guy just by asking specific questions that a "bad actor" is unlikely to know the answer to.