Any party may join in or adopt by reference all or any part of a brief, petition, response, motion, or other document filed in an appellate court by another party in the same case.
Tex. R. App. P. 9.7
Any party may join in or adopt by reference all or any part of a brief, petition, response, motion, or other document filed in an appellate court by another party in the same case.
Tex. R. App. P. 9.7