If, on the first day of January, in any year, two installments of any local improvement assessment are delinquent, or if the final installment thereof has been delinquent for more than one year, the City Attorney is authorized to commence foreclosure proceedings on the delinquent assessment or delinquent installments by an appropriate action on behalf of the City in King County Superior Court. The foreclosure proceeding shall be in accordance with the provisions of RCW Ch. 35.50, as now exists or as may hereafter be amended. Such foreclosure proceedings shall be commenced on or before December 1, 1982, and thereafter on or before June 1 of each succeeding year. (Ord. 1087 § 2, 1982).