Rule 17 - Parties Plaintiff and Defendant-Capacity(A) Real party in interest. Every action shall be prosecuted in the name of the real party in interest.(1) An executor, administrator, guardian, bailee, trustee of an express trust, a party with whom or in whose name a contract has been made for the benefit of another, or a party authorized by statute may sue in his own name without joining with him the party for whose benefit the action is brought, but stating his relationship and the capacity in which he sues.(2) When a statute provides for an action by this state on the relation of another, the action may be brought in the name of the person for whose use or benefit the statute was intended. No action shall be dismissed on the ground that it is not prosecuted in the name of the real party in interest until a reasonable time after objection has been allowed for the real party in interest to ratify the action, or to be joined or substituted in the action. Such ratification, joinder, or substitution shall have the same effect as if the action had been commenced initially in the name of the real party in interest.
(B) Capacity to sue or be sued. The capacity of a party to sue or be sued shall be determined by the law of this state, including its conflicts rules, except that a partnership or unincorporated association may sue or be sued in its common name.(C) Infants or incompetent persons-Unborn, unknown, and unlocated persons. An infant or incompetent person may sue or be sued in any action: (2) in his own name by a guardian ad litem or a next friend;(3) in the name of his representative, if the representative is a court-appointed general guardian, committee, conservator, guardian of the estate or other like fiduciary. The court, upon its own motion or upon the motion of any party, must notify and allow the representative named in subsection (3) of this subdivision, if he is known, to represent an infant or incompetent person, and be joined as an additional party in his representative capacity. If an infant or incompetent person is not represented, or is not adequately represented, the court shall appoint a guardian ad litem for him. The court may, in its discretion, appoint a guardian ad litem or an attorney for persons who are institutionalized, who are not yet born or in being, who are unknown, who are known but cannot be located, or who are in such position that they cannot procure reasonable representation. The court shall make such other orders as it deems proper for the protection of such parties or persons. Persons with claims against the estate of the ward or against the guardian of his estate as such may proceed under this rule or provisions applicable to guardianship proceedings. It shall not be necessary that the person for whom guardianship is sought shall be represented by a guardian ad litem in such proceedings. Nothing herein shall affect the right of a guardian to sue or be sued in his personal capacity.
The court, in its discretion, may honor the infant's or incompetent's choice of next friend or guardian ad litem, but the court may deny approval or remove a person who is not qualified. A next friend or guardian under subsection (C) of this rule may be required by the court to furnish bond or additional bond and shall be subject to the rules applicable to guardians of the estate with respect to duties, terms of the bond required, accounting, compensation and termination.
(D) Sex, marital and parental status. For the purposes of suing or being sued there shall be no distinction between men and women or between men and women because of marital or parental status; provided, however, that this subdivision (D) shall not apply to actions in tort.(E) Partnerships and unincorporated associations. A partnership or an unincorporated association may sue or be sued in its common name. A judgment by or against the partnership or unincorporated association shall bind the organization as if it were an entity. A money judgment against the partnership or unincorporated association shall not bind an individual partner or member unless he is named as a party or is bound as a member of a class in an appropriate action (Rules 23 and 23.2 ).(F) Unknown persons. When the name or existence of a person is unknown, he may be named as an unknown party, and when his true name is discovered his name may be inserted by amendment at any time.