Attorney-client privilege is a legal privilege that enables an attorney to keep communication with his or her client secret. An engagement letter is a formal agreement between a lawyer and client that outlines the scope and terms of the legal representation or services to be provided.LDF is not your lawyer. An attorney-client relationship is a bit like a marriage—sometimes there are irreconcilable differences. To learn more, click here. We are strategically located in Brazil to serve the needs of our clients in Latin America. The best way to get guidance on your specific legal issue is to contact a lawyer. Please note that the PDF applications and forms cannot be filled out within the browser. Special thanks to NLG Jailhouse Lawyer Vice President Mumia Abu-Jamal.