Sign the form before a Notary Public or before a Hennepin County District Court. Clerk in the Civil Division. 6.Sign the form before a Notary Public or before a Hennepin County District Court Clerk in the Civil Division. Get a document notarized. We have notaries at all 7 licensing service center locations. Fee. Affidavit Regarding Certain Sales. Need to locate a Minnesota Notary Public or find a notary in your area? Click on Find a Notary to search for notary information online. 4. Write the case Index Number. 5. Enter the county where the affidavit is notarized. 6.