It’s logical to sue the lawyer for malpractice if he pushed a bad suit to such an extent that he put her in additional jeopardy.
But, it will be interesting to see how this plays out. Will Trump’s lawyers take the judgement and attempt to impound Stormy’s assets? She can ill afford to sue Avenatti, because it seems she was hard up enough for money that she let herself be used for this ridiculous suit in the first place. Moreover, Avenatti is in terrible shape financially. You can’t squeeze blood out of a stone, although it might be fun to watch it attempted.
Stormy has only one asset and its depreciating every single day.
One of the benefits of a malpractice suit is that Avenatti’s disastrous financial condition may not be an obstacle. He almost certainly would have a liability insurance policy in place that would cover the cost of any settlement (I can’t imagine California would let a lawyer practice professionally without it).