Attorneyclient privilege is a fundamental legal protection in Pennsylvania that ensures confidentiality between a lawyer and their client. The key to determining if there has been a waiver of attorney client privilege is determining whether the third party's presence is indispensable.This publication is not intended to provide legal advice but to provide general information on legal matters. A lawyer shall provide competent representation to a client. The Pennsylvania Supreme Court set forth a new analysis for waiver of the attorney work product doctrine and raised new attorney-client privilege concerns. While the attorney-client privilege seeks to protect confidential communications between an attorney and a client, work product doctrine. This article outlines the attorney's ethical duty to make all non-frivolous arguments in opposing a subpoena for client confidences.