An Applicant Affidavit is a legal form used to provide additional information regarding crimes, negative actions, and applicant selfdisclosures. (a) "Sworn declaration" means a declaration in a signed record given under oath.Instead, you fill out an affidavit (a form you sign under penalty of perjury) and deliver it to the person or organization that has the property. General affidavit form for use within the State of Washington. Modify this affidavit to meet your specific needs. It is the main way you present evidence (the facts of the case) to a court.