What does "opposing counsel" mean? "Opposing counsel" refers to the attorney or lawyer representing the opposing party in a lawsuit.Counsel shall not argue objections in the presence of the jury without prior leave of court. 6. Be copied to the opposing party or counsel following Texas Rules of Civil Procedure. In case of tardiness or absence from a court appearance, a lawyer should promptly notify the court and opposing counsel. A lawyer shall not accept or continue employment as an advocate before a tribunal in a contemplated or pending adjudicatory proceeding. Contact courts and opposing counsel immediately for files that require court appearances or have discovery pending.