Must be nice to live in an area where there are more than three comps . . .
If, however, I find that I need 4, 5, 6 or yes, 9, comps to adequately present my opinion of market value, they are included in the report before it goes out the door.
Any questions about adding additional comparables are easily answered - so sorry, I utilized all the sales in the area that were appropriate. There are no more comps.
I would certainly ask to see the reviewer's comps - and I would provide a paragraph about each comp utilized in reviewer's report - not a review, a review of new sales data provided, and explain why they are not applicable to the subject and were not used in original report.
Make your client understand your report and your reasons for the opinion of value the first time around - and these requests should get fewer and fewer, and eventually disappear.