(A) An affidavit in either of the following forms is sufficient: (1) "State of Ohio,. In this lesson, you will learn what an affidavit is and how to format one.You'll also review a sample template that can be used to construct an affidavit. A proof of residency letter is an acknowledgment or sworn statement stating that an individual resides at a specific address. All applications for new notary commissions, renewal applications, online authorizations, amendments and resignations must be filed electronically here. Is competent to testify to the matters stated in the affidavit. Sample Disability Letters. Download free printable affidavit online for Ohio State. In the top left corner of the affidavit, write the state and county where you are executing the affidavit. I'm in the state of Ohio.