In an article I co-wrote with my partner Kristina Rost, that appears in today’s issue of [1] ilw.com we wrote:  “In preparing an agreement for legal representation, the immigration attorney should first specify the objectives the agreement is designed to accomplish. Is the main purpose of the agreement to inform the client of the legal fee and payment schedule? Is it to advise prospective clients of the dual representation rules? Or is it to serve as a memorandum on the most important issues relating to the representation? And how can you accomplish all of these important goals in one document?”

Although geared toward practitioners, the artcle provides useful insights in how the attorney-client relationship is structured. 

BTW, for those interested in developments in the field of US immigration, I highly recommend subscribing to Immigration Daily (ilw.com).