Corporate-Attorney Client Privilege. The attorney-client privilege is the oldest privilege for confidential information recognized at common law.This article explores those cases and suggests best practices for companies to follow to protect communications between employees regarding legal matters. What about former employees who worked there before the accused was a client? Period provided in the former version of the rule. Baughman is a partner in the Houston office of McGinnis, Lochridge and Kilgore, LLP. Ney.' But clients beware. In a variety of circumstances, courts have held that a lawyer may waive2 the attorney-client privilege even. The Tarrant Regional Water District ("TRWD" or the. "District") is a water control and improvement district created under article XVI, section 59 of the Texas.