Ky. R. Civ. P. 13.02
As amended through March 4, 2024
A pleading, other than a reply, may state as a counterclaim any claim against an opposing party not arising out of the transaction or occurrence that is the subject matter of the opposing party's claim. In an action by more than one plaintiff, a claim that a plaintiff is or may be liable to the claimant for all or part of the claim asserted against him by another plaintiff in the action may be stated as a counterclaim.
Ky. R. Civ. P. 13.02