Rule 5 - Counterclaim and cross-claim(a)Counterclaim.- A defendant may state as a counterclaim any claim that the defend ant has against the plaintiff that is within the jurisdiction of magistrate court. Such counterclaim may be stated together with the defendant's answer and may be filed and served in the same manner as the defendant's answer, without additional cost. A reply to a counterclaim shall not be required.(b)Failure to file counterclaim. - The failure of a defendant to institute a counterclaim permitted by this rule shall not preclude the institution of a separate action on such claim at a later time.(c)Cross-claim. - In a case where there are two or more defendants, a defendant may state as a cross-claim any claim that the defendant has against another defendant arising out of the transaction or occurrence that is the subject matter of the complaint. Such cross-claim may be stated together with the defendant's answer and may be filed and served in the same manner as the defendant's answer, without additional cost. An answer to a cross-claim shall not be required.R. Civ. Proce. For. Magist. Ct. 5