I'm in banking and we always check for liens when using anything for security on a loan. In order to check for liens you have to have an account with BC online which is the registry system for liens in the Province. We have a password and get charged for every search we do. I would think car dealers/Travel trailers also use this system when cars/trailers get traded in to check for liens. The problem with boats is they have 3 VIN's trailer, Hull, and Motor. I know some banks only register a lien on the trailer hoping the boat always stays with the trailer.