Until they need to show up in court! Even Sheldon's Mobile Virtual Presence Device requires a human behind it . But yes, I'd imagine most or all of the paperwork can be offshored or automated. Possibly more of the paralegal responsibilities in larger firms.

Anecdotally, my brother leads a corporate accounting department, it's not a huge staff. He only has one male in the department, and he's the newest, in an entry-level position.