Rule 14. Third-Party Practice

(a) When a Defending Party May Bring in a Third Party.
    (1) Timing of the Summons and Complaint.  A defending party may, as third-party plaintiff, serve a summons and complaint on a nonparty
    who is or may be liable to it for all or part of the claim against it. But the third-party plaintiff must, by motion, obtain the court’s leave if it
    files the third-party complaint more than 14 days after serving its original answer.
    (2) Third-Party Defendant’s Claims and Defenses.  The person served with the summons and third-party complaint — the “third-party defendant”:
        (A) must assert any defense against the third party plaintiff’s claim under Rule 12;
        (B) must assert any counterclaim against the third-party plaintiff under Rule 13(a), and may assert any counterclaim against the
        third-party plaintiff under Rule 13(b) or any crossclaim against another third-party defendant under Rule 13(g);
        (C) may assert against the plaintiff any defense that the third-party plaintiff has to the plaintiff’s claim; and
        (D) may also assert against the plaintiff any claim arising out of the transaction or occurrence that is the subject matter of the
        plaintiff’s claim against the third-party plaintiff.
    (3) Plaintiff’s Claims Against a Third-Party Defendant.  The plaintiff may assert against the third-party defendant any claim arising out
    of the transaction or occurrence that is the subject matter of the plaintiff’s claim against the third-party plaintiff. The third-party defendant
    must then assert any defense under Rule 12 and any counterclaim under Rule 13(a), and may assert any counterclaim under Rule 13(b) or any
    crossclaim under Rule 13(g).
. . .
   
    (5) Third-Party Defendant’s Claim Against a Nonparty.  A third-party defendant may proceed under this rule against a nonparty who
    is or may be liable to the third-party defendant for all or part of any claim against it.
. . .

(b) When a Plaintiff May Bring in a Third Party.  When a claim is asserted against a plaintiff, the plaintiff may bring in a third party if this rule would
allow a defendant to do so.