Im pretty sure the best bet is to go up to some one of authority and ask them. You haven’t stolen the car so you should have nothing to worry about. Unless ofcourse you did steal the car.
Speaking of stolen cars. They make fake ownershirp should be able to right one up and hack into the computer and make it real. lol.
But seriously go up to the MTO with the VIN and just tell them you think its abandonded and you would like to own it. They should be able to give you the name and number of whomever’s car it is.