A 1977 is a classic car?
In Ontario, the used vehicle package has all of that information plus any previous owners back to when they started keeping records. Not that this any answer, but I can't remember ever seeing a car for sale with a UVP ever having a lien on it. I'm sure they do from time to time but it may not be a large percentage of them.
You may not be able to get this info if your MOT doesn't provide it. If that's the case, I'd be talking to my MPP or MLA about it.