A pleading may state as a counterclaim any claim against an opposing party not arising out of the transaction that is the subject matter of the opposing party's claim.
Minn. R. Civ. P. 13.02
A pleading may state as a counterclaim any claim against an opposing party not arising out of the transaction that is the subject matter of the opposing party's claim.
Minn. R. Civ. P. 13.02