On a proposed home, the appraiser inspects the site, and often sees a finished builder model, and drives the comps. None of which is true in a hybrid where the appraiser does not inspect.
...and when those plans and specs change, we are tasked to do the final inspection and adjust the report accordingly. I mean, I bet 1 in 5 P & S has something different from what the plans say that I've encountered. It might be simple, one time they reversed the floor plan because of the lay of the site. Another time 3' was added to one side to make 2 bedrooms larger so they could build bigger closets. Plans change but we can adjust later.
So, Danny is conveniently forgetting that. No one gets to go out and second-guess if Bozo the Inspector has accurately described the property. And at what point in the 'verification' process can we actually determine if the inspector has accurately described the property? Never. With P & S, I can see if the builder is blowing smoke or not.
I once did a P & S for a builder for a 1 story 1800 SF house. But the builder was trying to stretch the house bigger to sell higher because he was very quickly going under. Before he was done, he bellied up. Roofed, framed, sheathed, bare interior walls. And he walked away. The bank then called me to inspect for them and they found another builder to complete the dwelling. Well, the now 2,200 SF or so house wasn't to the new builder's liking so, he modified it, moving some walls and a few other things. He completed the dwelling and liked it so well he bought the house from the bank, and the bank was delighted to come out whole and the builder got a house so close to the school his wife worked she could walk to work in less than 5 minutes. In short, we were able to adjust the value(s) according to what the actual construction was that we encountered. We were not bound by the P & S, either the original, or the sort of built on the fly final product when executing a final.
I do not believe that when a report is so absolutely wrong even when every mistake is the fault of the "property inspector" that the appraiser is not ultimately responsible for the accuracy of the report. When a fairy tale has been written based upon false data, I see no way that the appraiser will not share the blame and could be held accountable by the state boards.