Immediately upon the execution and delivery of any such assignment, the clerk shall take possession of all the assigned estate, and preserve, insure, and safely keep the same for administration according to law. The clerk and his sureties shall be liable, upon his official bond, for the faithful execution of the trust created by the assignment, for the preservation of the assigned estate, and for the accounting for and paying over of all moneys derived therefrom. He shall, under order of the district court, inspect the assigned estate, and take all necessary steps to sell or properly dispose of any and all perishable goods or property of said estate.