I'm thinking...
1. She's bored with all the clerical work that Mesa Verde is, and misses litigating
1a. As the judge said, perhaps trying to rediscover her love for the law
2. Maybe she's trying to get a hold of what Jimmy would be coming back to if he becomes a lawyer again, because that's where this series started, with Jimmy handling those random cases
2a. She's clearly concerned with his well-being and mental state, trying to get a read on whether or not getting back into law will be good for him?
3. I have no idea
Nacho is the most interesting character in this show. Kind of sucks that we know he makes it out of this series alive, though. And I don't mean that it sucks that he lives, but I mean that it sucks that his ending isn't really up in the air.