Would it be a violation of the Canons of Ethics for an attorney to file with the trial judge a brief covering the principal points involved in a pending action without furnishing a copy to opposing counsel?
18 Baylor L. Rev. 232 (1966)
CANDOR AND FAIRNESS
An attorney may not file with the trial judge a brief covering the principal points involved in a pending action without furnishing a copy to opposing counsel.
Canon 19.
It is the unanimous opinion of the members of the committee that it would be a violation of Canon 19 for an attorney to furnish such a brief to the trial judge without providing a copy to opposing counsel. Opinion 22 also covers this question. (10-0)
Tex. Comm. On Professional Ethics, Op. 88 (1953)