1 Advising or Assisting the Violation of Law Rule 1.3 Diligence Rule 1.4 Communication with Clients Rule 1.4. Formation of an attorney-client relationship.An attorney-client relationship is essentially formed when the attorney agrees to represent the client and move forward with the client. An attorneyclient relationship starts when the client actually retains an attorney to represent the client in a legal matter. This publication is not intended to provide legal advice but to provide general information on legal matters. When a party seeking legal advice consults an attorney at law and secures that advice, the relation of attorney and client is established prima facie. New Jersey is the most densely populated U.S. state.