Note: See affidavit form in Pa.R.C.P. 240. You will need one copy of the civil complaint with original signature for the magisterial district judge.Before me, the undersigned authority, a notary public, personally appeared. An affidavit is a statement made under oath, claiming that a fact or set of facts is true to the best of the "affiant's" knowledge. Box 8: Type date signed. Box 9: The person who served the Defendant must sign his or her name. An affidavit is a written statement. A person, known as the affiant, swears under oath to the statement's truthfulness.