Del. Code tit. 10 § 4983
Whenever an execution for sale of lands and tenements shall be directed and delivered to a sheriff in office, whose term expires before the confirmation of the sale made under and by virtue of the execution, or whose term expires after confirmation of the sale, but before the execution and acknowledgment of the deed to be made in pursuance thereof, then and in either case the sheriff making the sale may as late sheriff make, execute and acknowledge a deed for the lands and tenements so sold to the purchaser thereof in pursuance of the confirmation, and the deed so made, executed and acknowledged by the sheriff as late sheriff shall be good and valid in law. Such deed shall be made, executed and acknowledged by the sheriff within 2 years from the date of the confirmation of the sale.
10 Del. C. § 4983