Which document must verify the validity of a property title?

The document that verifies the validity of a property title is the notice of title. A notice of title provides a formal acknowledgment of ownership and confirms that the property title has been examined. It acts as a public declaration through which potential buyers and interested parties can be informed about the state of the title, including whether there are any encumbrances or claims against it.

In real estate, it's crucial to confirm that the title is clear of issues so that the new owners can have peace of mind knowing that their ownership is secure. A title deed, on the other hand, is more about the actual transfer of ownership and may not actively verify the title’s status. A home inspection report assesses the physical condition of the property but does not deal with the title. An affidavit could be a sworn statement asserting certain facts, but it does not verify the validity of the title itself. Thus, the notice of title is specifically designed for the purpose of validating ownership and asserting the legal status of a property, making it the correct answer.