Tex. R. Civ. P. 509.7

As amended through August 27, 2024
Rule 509.7 - Counterclaims

Counterclaims and the joinder of suits against third parties are not permitted in suits under these rules. Compulsory counterclaims may be brought in a separate suit. Any potential causes of action, including a compulsory counterclaim, that are not asserted because of this rule are not precluded.

Tex. R. Civ. P. 509.7