It kinda depends on whether you're charging money and how. I can express legal opinions all day, without being a lawyer. I can write a blog with my legal opinions. I can sit in a room with you and regale you with them.

What I can't do is offer to represent you in a legal case, or imply (with signage, advertising, business cards etc) that I can provide any sort of legal services. And if I took money from you, it would have to be on the understanding that I was just providing entertaining opinions which it would be unwise for you to rely on.

At some point you have to grant that the clients of such a service have some agency and are able to evaluate straightforward disclaimers of liability or fitness.