An owner of five or fewer residential rental units within the city, none of which is owner-occupied, shall receive a credit of one unit from the business license fee calculation. An owner of five or fewer units, one of which is owner-occupied, shall have the owner-occupied unit exemption and shall receive credit for one unit from the business license fee calculation. Additionally, no setup fee shall be charged for residential rentals consisting of one to five units. (Ord. 672-91 § 2)