Go the the Registry of Deeds. Get a "certified true copy" of the title. You'll pay a minimal amount. Check the title if it's mortgaged, etc.

Also a good idea to get certified copies of the titles that were cancelled in favor of the new title for the new owner. They show the names of the previous owners of the lot. Their TCT (transfer certificate of title) number is indicated in the current title.

Then get a geodetic engineer to relocate your lot and bury those concrete cylinder monuments (muhon).