I've personally used Codex to reconcile financial data, and met a guy who basically built his own AI inference engine to help him fight a custody battle for his daughter (semantic search over gigabytes of documents).
I'm not saying lawyers and accountants are going to all be out of a job (at the end of the day, they do more than just comb over documents to find the needle in the haystack), but a lot of the manual grunt work can be automated there too.