Upgrading may not be necessary, but checking the existing for deficiencies, and reporting this to the owner certainly is. The best changes are changes necessary to meet code (Civitello). You can exclude the upgraded grounding in your quote, find the need, and request a change after the grounding deficiency is found. The inspector could be doing you a favor (writing a necessary change to meet code) that may be saleable additional work.
It is clear to me the inspector is intent on not making the owner's (and your) liability into his liability. It is everyone's valid the concern the grounding be checked and repaired as necessary.
It is clear to me the inspector is intent on not making the owner's (and your) liability into his liability. It is everyone's valid the concern the grounding be checked and repaired as necessary.