The commissioner of any county seat shall keep regular and systematic accounts of all sales by him made, showing the lots sold, the names of purchasers, the amount paid, the balance to be paid, at what time and how secured, and the expenses by him incurred. He shall make settlement with the county commission at each regular term thereof, and pay the balance that may be found against him into the county treasury; and when all the sales ordered by such county commission shall be completed, and payments made, and deeds executed for all the lots sold, or in case of the resignation or removal from office of such commissioner, he, or in case of the death of such commissioner, his executors or administrators, shall, at the first term after such sales shall be completed and payments made, or after such resignation, removal or death, settle with such county commission, and pay or deliver over, according to its order, all moneys, books, papers, notes, bonds or other securities belonging to such county.