There's no ill-will involved. When you don't pay phone bill and the phone company threatens to sue, they don't feel any "ill will" against you. It's just business.
If you were on $300K/year and your employer gives you shitty work to do to make you quit (because of something your girlfriend did at some other job) would you not take them to court?
Most people weren't personal friends with your phone company. I don't understand what is so difficult to understand about this. She knows people at HHM, she was friends with them, and their recent shitty treatment isn't enough to overturn that goodwill. That would
require ill will toward them. It's not some random person filing some other random person.
And what I would or what you would do or what anyone else would do in that situation is irrelevant isn't analogous because you're not lining up the other variables. Who is the employer in question? Is it my best friend of 20 years? Is it some random dickhole? And how vindictive am I feeling over this? All those things are a factor that would determine whether a person (you, me, Kim, someone else) sues, because this situation is intrinsically defined by personal attachments. For Kim, it doesn't add up to being worth suing HHM over shitty treatment. That's her personal decision. It's really that simple.
When you leave a law firm in you mid-40's to go solo, you are generally finished in any Top 20 law firm's eyes unless, like I said, you can bring in a big client.
The whole point of Kim leaving and entering a sole practice was to show how much like Jimmy she is. Many people are blinded by her nice legs and missed that.
Uh....okay, first off, I don't think I ever said she wasn't like jimmy. I'm very much aware that her character arc this season was about finding her own independence, which is similar to Jimmy. However, that doesn't make her Jimmy with nice legs. She isn't out to screw anyone and isn't willing to do it for an upperhand (atleast not until Chuck forced the situation in the confrontation). Just because Jimmy would screw over HHM or even a firm that did right by him (Davis and Main) doesn't mean Kim would.
Second, I'm not sure what your getting at anymore. You seem to have a knowledge of the legal system, and while that's cool, the entire point of fiction means that you can bend the rules. Kim can sue, and Mesa Verde can leave her mid transition, and then what reason will any law firm have to take her? What if she wants to join a law firm years down the line? What if she simply CAN'T get another big client? The narrative is in the hands of the writer, and if it's possible, then Vince Gilligan can generally work it to make plausible. What are the chances of a big, respected law firm hiring a lawyer with a shady past and a pathetic law degree? Well, it happened with Jimmy. So, alternatively speaking, there isn't a real reason another law firm can't just see her and how she handles herself and offer her a job. I mean, Schwikart and cokely did this.
So I'm not sure what your going for anymore in regards to the original discussion of a contradiction. She gave her reasons, both explicit and implicit, for why she's not interested in suing HHM, but is willing to leave them. Even if you disagree with her that what she's doing is a good idea, that you would sue HHM for being a bag of dicks, that's not a contradiction of any kind.