Rule 2057. Nonsuit. Directed Verdict. Judgment Notwithstanding the Verdict. New Trial

The non-representation of a plaintiff who is incapacitated may not be assigned by a defendant as a ground for a nonsuit, directed verdict, or judgment in favor of any party, but may be assigned on behalf of the incapacitated plaintiff as ground for a new trial when a setoff or counterclaim has been successfully asserted against the incapacitated plaintiff.