I just want to reiterate, if you want to change attorneys, it is in your best interest to have them release you. With the relatively low fees attorneys are dealing with, some will not touch you if they have to split a fee. Become a very high maintenance, very unhappy client, and you should get a signed release fairly quickly. At the very least, you should insist on an in office appointment with an attorney to discuss your Alleged Onset Date and any other concerns you may have.