The guiding principle in the drafting of this Rule was to preserve the Pennsylvania law with regard to the attorney-client privilege. 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. The attorney-client relationship affords a distinct, invaluable right to have communications protected from compelled disclosure to any third party. Even though suit has not yet been filed, you retain several experts as consultants to assist you in the evaluation and defense of these expected suits. Request for legal invoices require analysis of two privileges: the attorneyclient privilege and the attorneywork product doctrine. After completing its report, Mandiant delivered the report directly to outside counsel, who then delivered it to inhouse counsel. Of attorneyclient privilege to agents, consultants, or independent contractors of a client in the real estate context. Environmental consultants conducting audits or testing fall in a gray area. Environmental consultants conducting audits or testing fall in a gray area.