(a) In a suit to collect delinquent municipal improvement district assessments brought in the name of the board of improvement, the chancery court shall order, in its decree of condemnation, that if the sum adjudged shall not be paid within ten (10) days, the property shall be sold by a commissioner, appointed for that purpose, upon twenty (20) days' notice.
(b) Only so much of the property shall be sold as will pay the assessment, costs, and penalty, and no more.