JAMES E. DOYLE, JR., District Attorney, Dane County Attorney General of Wisconsin — Opinion December 29, 1978. Contracts; Creditors’ Actions; Interest; Intoxicating Liquors; Malt Beverages; Imposition of monthly interest charge as part of sales agreement between liquor and beer wholesalers and retailers upon accounts which have become overdue violate credit restriction provisions and tied-house provisions […]