So.. yeah; which hero (or villain) would be able to do the aforementioned?
Honestly? I haven't read Daredevil in years (though I've heard it's had its excellent runs, over the years), but I think Matt Murdock could step up his game and go about representing the Hero community, more so than he does currently. As it's Murdock, who tries to keep an open mind, I don't see him turning aside (C-List, I can't see Ultron in court..
) villains who have been unjustly accused, either. I think he'd hire Luke Cage or Iron Fist as protection in his law practice, though.
I'd love to see a series about Dr. Doom, and how he runs Latveria, for better or ill; a three-parter would do. The man doesn't need powers.. maybe he hangs up his suit of armor briefly and puts aside his magical prowess, and just focuses on matters of State.
For that matter, a mini-series about Marvel's various "super-villain prisons" (The Vault, Negative Zone prison) would be different, also; told from the standpoint of the human guards, not the heroes who also guard it.
A one-shot about Alfred Pennyworth would be cool.
There's already some heroes without powers (Batman, Punisher, etc), so they don't count.