First and foremost, the welcome package should include a copy of your signed engagement agreement, which governs your relationship. (lawyerist.com)
Therefore, do not send us any confidential information about any matter that may involve you until we have agreed on a written engagement agreement. (klgates.com)
These objectives, fees, and other expenses to be paid will be outlined in a written client engagement agreement between the firm and client. (jepchicago.org)