Marcus,

In #1, the repair is easily verifiable, so the liability issue is minimal.

In #2, you are only looking at the circuit breaker/wire size. What if there are other problems that were not addressed? Possibly something that an average HI would not know. The issue is that generally the "last man in" gets the blame. The HI is the generalist and the electrician is the specialist and, theoretically) should know more. If the electrician does work and the HI verifies that everything is OK the HI is accepting the liability. I try not to do reinspections, but to do as John does. Advise them to get documentation from the contractor that does the repairs.

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