Any person who shall file such a lien statement without reasonable grounds to believe that he is entitled to such lien or who shall file a statement containing any willfully made false substantial statement and who shall fail upon demand to execute and deliver to the property owner a full and complete discharge of such lien claim shall be liable in a civil action for all damages, expenses, and costs, including attorney's fees, caused to the property owner and an additional penalty of one hundred dollars to be included in the judgment in such action.
SDCL 44-2-9