More to explore:
Legal reference for librarians : how and where to find the answers / Paul D. Healey. Chicago : ALA Editions, American Library Association, 2014. This book provides a concise orientation on legal research, including strategies for finding information quickly and a handpicked compendium of the best resources; offers guidance on how to provide advice on legal research while steering clear of liability; and covers federal legal reference as well as all 50 states.
Reference Notes: Open Access : Copyright for Librarians: The Essential Handbook
I would add "and anything else" or similar so patrons do not think these are the only questions I'd answer
A number of our libraries need reference desks. I think I like the portable approach but really love the signage.