And this is why
a. you should hire licensed electricians and pull a permit when you remodel. Not necessarily because the work is better (you may be able to do a fine job) but when you go to sell, you just hand them the inspection. All done to code, go away.

b. You should hire licensed electricians/plumbers/etc to do inspections. Cuz i guarantee my inspection objection would have come up with a lot more than just "ungrounded outlet". And now the problem is that you have to fix it, even if not for this guy, because now it's in writing and you have to reveal it to future buyers.

Hire an electrician, get it fixed correctly, cover your butt in the future.