Protests of assessments filed with the Clerk of the Council shall contain the name and mailing address of the property owner, as well as the parcel number of the property, the assessment of which is being protested. Further, the protest shall contain all of the grounds upon which the protesting party considers the assessment to be unjust or unlawful. The protest should also contain a request for relief, including the specific nature and extent of the relief sought. Every protest must be signed by the property owner or his or her authorized representative.