Alright so I didn't think I'd have one more, but I completely forgot about this one. This is more than likely the last one however.
Phoenix Wright!
Phoenix Wright is pretty much a lawyer with no real combat skills shown in his games that could make him a contender for Smash
Though that isn't entirely true as he has worked in a fighting game previously.
He may not be a strong combatant but has some uniquness to his moves. With that said, it seems he's more suited for a game like MVC3, especially considering the 3DS version of the game would perhaps limit summoning Maya to accompany her.
Overall I put him in debatable. This would have been longer and different entirely: I was gonna put a trial version of this instead, but I ended up scraping that.