When a county treasurer or tax collector is charged by law with the collection of delinquent taxes, the county treasurer or tax collector may delegate in writing to the deputy county treasurer, to the deputy tax collector, or to the county sheriff the duty and responsibility to seize and take possession of so much of the property of a defaulting taxpayer as may be necessary to secure payment of the taxes. Upon this written delegation the officer shall proceed to seize and take possession of the property. The treasurer or tax collector thereafter shall proceed to advertise and sell the property as provided by law.