By using this template, lenders can present a legal document to the court, asserting their ownership of the mortgage and the debt. Recover lost promissory notes with ease.Many parties in the industry mistakenly believe that filing a "lost assignment affidavit" with the County Recorder fixes the problem. What information is required to complete a lost note affidavit? Collect the contact information of the parties involved: name, address, phone number, etc. In a recent case from Ohio, the court ruled that the assignee of a home mortgage (U.