It is not uncommon for social security disability claimants to disappear during the course of representation. They may move and forget to tell their attorney or become homeless and have to move about frequently. Also, some claimants with serious mental problems will forget to contact an attorney or be afraid to do so. Finally, the claimant might end up in prison and not notify the Social Security Administration or the attorney. Generally, an attorney will keep a file open for a period of time and continue in hopes that the claimant will resurface or make contact. It is very important that the client give the attorney one or possibly two ways to maintain contact during the course of representation with multiple phone numbers, addresses, etc.