Er, how about "Legal Issues?" "Legal opinions" is a legal term of art equivalent to "legal advice."
I'm not sure that "legal opinions" works that well even if used in its colloquial sense. If you intend to use "legal opinions" in the sense of, "look, I'm entitled to my opinion," consider how that would work if we were talking, say, medical opinions:
"I think that Chicken just has gas pains"
"Yeah, well I think that he's having a heart attack!"
"Yeah, well, you're entitled to your opinion, but I wouldn't waste my money on a doctor if I was Chicken. That's just my opinion. . . .
On second thought, I guess that's what most health bulletin boards look like. But still. . . .