Once again, Faye is the adult in the firm.
By this point, I can only think of two lawyers on the show who shouldn't be disbarred: Alex Williams and Katrina. Yes, Alex messed up, as was shown in this episode, but he tried to make things right. Katrina messed up in the past, but now she is actually following the rules.
Louis is a good person when the writers permit, but he needs to get out of the toxic place that is uhhh Specter Litt Wheeler Williams (Is that the name now?) - we have seen in the past that he is an amazing lawyer when it comes to money matters, but he is constantly pressured into illegal situations by his so-called friends. He should just offer to suspend his license for a few years, be a stay at home dad, then go back into law, maybe get offered a judgeship by that friend of his if the show wants a happy ending.
But of course, this show is going to end with Faye being revealed as being corrupt somehow, then Harvey & everyone gets away with it again - *unless* they have something come up that there is no way out of, and everyone will go down unless Harvey falls on that sword, then Harvey goes to prison, and Mike is his first visitor. Fade to black, it's 5 years later, Harvey is getting out of prison, Donna and a 5 year old Harvey Jr. are there, along with Louis, Sheila, and their kid, probably the opposite sex of Donna & Harvey's kid, so Louis can make jokes about how their families will be bonded forever if their kids ever marry.