If it is just a simple question, I would try Avvo. You do have to be a lawyer to register with them so no fear of the person responding not being a real lawyer. It is not just a message board. I am a lawyer, and I have an account with Avvo.
With that being said, if it is a serious matter, she should definitely schedule an appointment with an attorney in her area with experience in whatever the matter invovles to discuss her issue. If she doesn't know any attorneys experienced in that area, Avvo is also a good place to find attorneys with experience in whatever area she is looking for advice.