There may be occasions when the landowner and Building Inspector or Code Enforcement Officer do not agree on the date on which a nonconforming use was discontinued, damaged, or destroyed. In these instances, the burden is on the landowner to demonstrate when said discontinuance, damage, or destruction occurred. Proof should be in the form of a utility bill, telephone bill, business receipt, police report, canceled rent payment check, or any other written documentation that clearly identifies a date on which the nonconforming use was still operating or the date on which it was definitively discontinued, damaged, or destroyed. Further, in those instances when the date of discontinuance, damage, or destruction is in dispute, the landowner must also provide a notarized affidavit swearing to the date or dates on which the nonconforming building or use was still operating or to the date on which the nonconforming building or use ceased operation.