Any person determined to be responsible for code compliance pursuant to a citation or notice and order shall be liable, jointly and severally with all persons responsible for code compliance, for the payment of any and all penalties and costs. However, if the landowner of the subject property affirmatively demonstrates that the action which resulted in the violation was taken without the landowner’s knowledge, that landowner shall be liable, jointly and severally with the person responsible for code compliance, only for the costs of bringing the subject property into compliance with Clallam County Code.