A disengagement letter serves to make clear that a client has ceased to be a current client for conflict of interest analysis. In the demand letter, State Farm is demanding payment of the amount within 30 days, or they may proceed with a civil lawsuit against you.There is no specific requirement for a lawyer to send a letter to show that he is withdrawing. Bank or insurance company. Special thanks to NLG Jailhouse Lawyer Vice President Mumia Abu-Jamal. There is no specific requirement for a lawyer to send a letter to show that he is withdrawing. A real estate agent or real estate lawyer can help you find a mortgage and insurance. He or she can help you fill out the forms to buy your home. An attorneyinfact is a person who has been legally appointed to act on behalf of another person in a legal or business matter. File a claim, with support from your attorney.