You only take liability for the work YOU performed. I would make field notes on any irregularities you find. Keep in mind, just cause you don't like Knob and Tube, doesn't mean it was not legal when installed, and frankly, I've seen bunches of this stuff that still works just fine.
Take pics of anything you think dangerous, not necessary to make an issue of it beyond pointing out the problem to some Responsible Person from the GC, then put in your field book, who you pointed it out to
![[Linked Image]](https://www.electrical-contractor.net/ubb/biggrin.gif)
The word here is CYA, but I would not be concerned about liability for any work other than what you install, at least that's the way it works in most States.
Might wanna make certain your permit clearly specifies what areas you will be working in as well.
