Point taken, and I appreciate you taking the time to respond. My hope is that you're misreading my posts as they are not intended to be full of smarm, entitlement, disingenuity, and contempt. I know you don't believe me, but I am trying my best to present the situation as objectively as I can. Please keep in mind that I am only able to present my perspective, which includes the appraisal report itself, the emails I was sent, and the things I was told verbally. I am not privy to every part of this process, including conversations / emails that happened between the appraiser and the lender. Based on that alone, you are right in that it isn't anyone's place on this forum to judge the appraiser's work as I have presented it from my limited perspective.
Given that this is an online forum, my ability to convey the situation and its complexities is also limited. I'm not going to post the appraisal or emails here, for obvious reasons, so the best I can do is answer questions about the situation and the report from my perspective. Accordingly, I am not planning to use this forum as a jury for whether I should move forward with a complaint or not. All I wanted to do was get opinions on whether my claim is frivolous or not. It was an honest question because, as you pointed out, I am not (and have never claimed to be) an appraiser, which is probably why I've asked some pretty basic questions in this thread. I'm sure appraisers, and this forum, have seen far too many frivolous complaints from disgruntled buyers and sellers already, so I'm not trying to add to the pile.