Adversarial agents and reviews means 3 is very clearly giving the benefit to AI.
Let's face it, only thing lawyers are there for right now is to take liability. And even that may not be needed 5 years from now.
Middlemen that can be automated will be automated.
Lawyers do a lot more than accepting liability. In my field they spend a lot of time on contract negotiation, and on interpreting what federal and state regulations actually require us to do.