Rule 25.Substitution of parties
Part IV: Parties · Last amended January 1, 1991 · Last verified July 28, 2026
Full Text of Rule 25
Amendment History
Amended, effective July 1, 1970; Oct. 15, 1980; Jan. 1, 1991.
Plain-English Summary
Rule 25(a)(1) covers death. If a party dies and the claim isn't extinguished, the court may order substitution of the proper parties on a motion by any party or by the deceased party's successors or representatives, served together with notice of the hearing on the parties under Rule 5 and on non-parties in the manner Rule 4 requires for serving a summons, and that service may happen in any county. Unless the substitution motion is made no later than 90 days after the death is suggested on the record by service of a statement of the fact of death, the action must be dismissed as to the deceased party — except in cases where an application for an interlocutory appeal has been made. Rule 25(a)(2) covers the narrower case where the right sought to be enforced survives only to the surviving plaintiffs or only against the surviving defendants: there the action doesn't abate at all; the death is suggested on the record and the action proceeds in favor of or against the survivors.
Rule 25(b) extends similar treatment to incompetency: if a party becomes incompetent, the court, on a motion served the same way as a death motion, may allow the action to continue by or against that party's representative. Rule 25(c) addresses a transfer of interest during the litigation — the action may continue by or against the original party unless the court, on motion, directs that the person to whom the interest was transferred be substituted or joined, with the motion served the same way as under subdivision (a).
Rule 25(d) handles public officers. When an officer of the State of Delaware, a county, a city, or another governmental agency is a party in an official capacity and dies, resigns, or otherwise leaves office while the case is pending, the action doesn't abate — the successor is automatically substituted, and proceedings continue in the substituted party's name, with any misnomer that doesn't affect substantial rights disregarded. An order of substitution can be entered at any time, and failing to enter one doesn't affect the substitution itself. When such an officer sues or is sued in an official capacity, the officer can be described by official title rather than by name, though the court may require the officer's name to be added.
Frequently Asked Questions
What happens if a party dies while a Delaware lawsuit is pending?
Rule 25(a)(1) allows the court to order substitution of the proper parties, on motion by any party or by the deceased party's successors or representatives, if the claim survives the death.
Is there a deadline to move for substitution after a party's death?
Yes. Rule 25(a)(1) requires the motion no later than 90 days after the death is suggested on the record by service of a statement of the fact of death, or the action must be dismissed as to the deceased party, except where an interlocutory appeal application has been made.
What if the right being enforced survives only to the surviving parties?
Rule 25(a)(2) states the action doesn't abate in that situation; the death is suggested on the record and the case proceeds in favor of or against the surviving parties without a substitution motion.
What happens to a case against a government officer sued in an official capacity who leaves office?
Rule 25(d)(1) provides that the action doesn't abate — the officer's successor is automatically substituted, and proceedings continue in that substituted party's name.
Does transferring an interest during a lawsuit require substituting a new party?
Not automatically. Rule 25(c) allows the action to continue by or against the original party unless the court, on motion, directs that the transferee be substituted or joined.