COMPULSORY-COUNTERCLAIM RULE

compulsory-counterclaim rule. The rule requiring a defending party to present every counterclaim arising out of the same transaction or occurrence that is the basis of the plaintiff’s claim. Fed. R. Civ. P. 13(a). • Most courts hold that if a party does not timely bring a compulsory counterclaim, the party is estopped from asserting the […]