:hobohodo: 'Lies' is a strong word. Perhaps 'deception' would be better, but it doesn't have as much of a sharp contradiction to it. I think using 'lie' in a slightly exaggerated sense works, as the evidence itself is a lie even if Phoenix weaved around lying himself.
I don't really think they have to be entirely forward in their statement. Some ambiguity is fine, particularly to make the slogan more thought-provoking.

I did this one because of Ema's belief in science, and that all things can be understood by observing the the components. Scientific observation is about looking at the parts to find the whole, and Ema does that through forensic investigation. She seems to see crime as a 'mechanism' with parts leading to other parts.
Lisa doesn't really say anything that makes the statement applicable to her, in my mind. Her motif is that she looks like an android and is about customer service, and that doesn't 'finding the parts' to me. The first part might work.

I thought of the slogans as also being something people attribute to the character, rather than only something the sloganized believes.
Yours works for him, though, and I like it.

This one was really abstract. My logic was that Magnifi kept rigid control on Zak and Valant through his blackmail and mind-games, and that this eventually resulted in both being destroyed. It's a bit indirect, but I prefer to be abstract and I think it's clear enough.

I see. However, Payne attempts to appear the tough, vetern lawyer as part of his tactics, without the ability to back it up. Once again, it's a bit more abstract than you may think is suitable for a slogan. I think it's fine, because Payne does present points and seems to be an antagonist, though it becomes quickly apparant that it's all for show.

The second half is meant to be contradictory. In one sense, it suggests that if he doesn't fight to make a name for himself as a lawyer, he's doomed to just become 'Kristoph's protege' or 'Phoenix's protege'. In another sense, it draws light to how he's trying to emulate Phoenix (he idolized him initially and still does in a way, and attempts to emulate his courtroom presence, such as the "Objection!") and may need to make his own style to become truly great.

Since Kristoph is heavily based around style, it becomes a key point for him. He's also quite competant, so the style isn't just his only strong point - people might underestimate him for that.

Well, it's exceptionally true for Klavier, because he seems so together and seems to be the most honest prosecutor. This hides his guilt over the one case, which we don't get an impression of until the issue comes up.
Perhaps: "The showman always makes the face that fits the act." Which also works for Moe, though Moe was more open about his feelings than Klavier.

I stand by this one and my initial argument for it. It also works because she attempted to put Phoenix in a losing position, when he (unknowingly) gambled by accepting the challenge. However, she ended up taking an gamble with the ploy, failed, and nearly died and nearly was convicted for it.
You could add "even if they don't know they're playing." or "even if you don't know the stakes." to the end, especially since she didn't know how much of a gamble she was taking with the plan.

Trucy always struck me as a lot more fragile and her gains a lot more tenuous than people think. She's lost both parents, one seven years after he had abandoned her and vanished and confirmed without room for doubt, and the other members of her troupe. She expresses genuine fear over losing Phoenix, and doesn't seem to really open up to Apollo as much as she could (or to anyone else, not even Phoenix). I get the impression she honestly is unsure of whether her new family will disappear as well, and she's developed enough of attachment to Phoenix that him vanishing from her life, especially abruptly, would be devastating. She's perservered through her loss, but its unclear if she'll be able to sustain that if further loss happens (like if Thalassa actually dying, or Phoenix dying or disappearing). I could see Trucy thinking this herself, as she has the fear of future loss and hides that fear.
I did another one for her early on, which was along the lines of "For the performer, the smile doesn't have to be real". This isn't verbatim, but I like this better than what I remember I used. I think the one I used here was better, though, because it was more pointed.