Your lawyer orders a title search through Information Services Corporation early in the transaction, then again shortly before possession, to catch anything registered against the property in between, such as a new judgment or a builder's lien from unpaid renovation work. If your home carries a mortgage, the lawyer also confirms the discharge is filed so the old lender's interest comes off title at the same time the new owner's does.
Unpermitted work is a related but separate issue: it will not show up as a title problem, since the City of Saskatoon's permit records and the land registry are different systems, but it can still surface during a buyer's home inspection, typically $400 to $600, and a seller who discloses it up front avoids a last-minute renegotiation.
Budget legal fees of roughly $800 to $1,500 for this work, since a title search and discharge are part of what that fee covers, not an extra cost on top. Get your hand-reviewed valuation from Joel Dyck.