AI doesn't really offer anything new here.
It has always been possible to get these jobs done faster and cheaper --- if you're willing to ignore a few little nagging issues like quality and liability and *legality*.
Review of legal contracts is not just about what is being said but also what should be said that isn't.
Can AI do this level of analysis as well as a licensed professional? Color me skeptical. But as always, your mileage may vary.