I assume you'd have access to AI lawyers too, better ones if you can pay for larger/newer models! Meanwhile the judges are N year old models because they are state funded, and they work 'fine'.
There's an interesting tradeoff here, a year or two ago maybe it got facts right 50% of the time. Everyone knew not to rely on it.
Now, suppose we are 90% of the way there, only technically proficient people would know not to trust it. (like not adding Internet Explorer toolbars! Or remembering to use ad blockers..)
A few years later, suppose we have spend a lot of money and effort getting it 99% of the way there, trusting it would be somewhat natural by then. And then for the important 1% of the situations, it would stand to cause real harm. 1% seems low, but for a million invocations, you'd have 10000 mistakes.
AI is pretty useful for a great many things, but to really attract more and more investment the current technique seems to be convincing people that AI is useful for everything.
Edit: corrected bad spelling with AI XD
LLMs are pretty decent at 'search' given the inherent knowledge compression, and some amount of inaccuracy is fine.