In my opinion, the answer to this situation is simple.
I don't really care if an entity hires someone from Montana to review my work in California.
The only thing I do care about is that the person is (a) competent to complete the review given the review SOW and (b) then competently completes the review assignment.
I've advocated since I first started posting on this forum that if a lender uses a review as a negative mark against an appraiser, then that appraiser is entitled to a copy (a full copy that includes the review SOW) of that review.
Therefore, the simple solution to the issue is this:
A. Just like we are moving toward national licensing reciprocity, that should include regulatory oversight reciprocity.
and
B. Give a copy of the review to an appraiser if that review is used as a negative mark against the appraiser.
If we had these tools, then we could judge the quality of the review based on its presentation and SOW. If we thought it was lacking, we could file a complaint with our state board that (in my example) should be in a better position to determine if geographical competency was necessary and not demonstrated than the Montana Appraisal Board. If our board found issues, then it could enter a finding and Montana would honor it.
This would accomplish the following:
A. Provide more transparency about the review process. I don't care if the lender declined the loan based on the review; that's the lender's prerogative. I do care if my standing was impaired due to the review. So the lender can deny the loans all day. But if the lender uses the review to blacklist me, I should be entitled to a copy of that review.
B. It would probably cause clients to be more careful in writing their review SOW requirements. That's a good thing. Again, if a review can be completed by an out-of-state appraiser in a centralized location that is efficient for the client, what do I care? (I actually do care and I'm in favor of efficiency). But if the SOW is such that the lender wants something that a remote appraiser is not qualified to do, that is the lender's problem and relying on a non-qualified appraiser is inexcusable.
C. I think it would improve the overall quality of the reviewer. It would certainly increase the liability for the poor quality reviewers since there would be more transparency. Ultimately, appraisers are responsible for the SOW; so if a reviewer is in a situation where she/he is not qualified, she/he should decline the assignment or stop it when they identify they are unqualified.
As I said, it is very simple. I don't care where you are from and you are free to review my work consistent with the SOW the review requires. My only requirement is that you are competent to do so. Competency is judged not on where you are located, but on your license level and the credibility of your results.
In essence, I hold a reviewer to the same standard that I hold myself to.