**** The information written here is not legal advice and the author of this blog is not your lawyer. These posts merely contain ideas to help you plan and organize your legal research and identify potentially helpful sources of law. ****
The phrase “legal address” is used to indicate the place where someone makes his or her home. If you do not have a home and you get mail delivered to places that gave you permission to do so, it is legal to use those addresses.
The law does not prevent homeless who are homeless from having their mail delivered to multiple places. If you want your Social Security mail delivered to your case worker’s office and your medical mail delivered to your brother’s house you only have to know about the policies of the people or offices sending the mail and the willingness of the places receiving the mail. (See the other posts about mail for more ideas about researching mail-related rights.)
Of course, you also have to worry about confusing an agency’s record keeping system. As long as it is necessary to complete separate applications for separate services, there is probably no reason to assume that a single address has to be used on all of them. However, if all of the services are administered under one agency, such as the state department of health and human services, there’s a likelihood that all client data goes into a single database where the most recently entered street address applies to everything involving a client.