I do not think Kassen works with Baez. If he does, I had not heard that. In any case, Kassen is on the civil case (ZFG). The facts and circumstances surrounding the lying, Casey's whereabouts, etc are so intertwined, inextricably, on the fraud trial and the murder trial that I cannot imagine Andrea sitting that one out if it goes to trial. If it gets bumbled, that makes her job in the murder trial that much harder. I could be wrong, but I don't see her sitting on the sidelines in any way, shape or form until both cases are resolved.
I am just guessing, of course. I could be one hundred percent wrong and Andrea could want to take the fraud trial to a jury. I have been shocked many times in this case so far!