The amounts assessed in the ordinance shall be due and payable immediately upon its passage and if not paid within ten days thereafter, the municipality or its transferees, may proceed by suit against the properties and the owners thereof, to enforce the collection of the amounts of the assessments, together with six per cent per annum from date of acceptance and ten per cent in addition to the amount of the judgment as attorney's fees.
La. R.S. § 33:3957