@Alison Wegenke Check out Mike Simmons, he is an author and also has a podcast that talks a lot about choosing the right partner and what to look for (I believe he was a BP podcast guest too).

There are standards recommended by authorities like CCIM, SIOR, etc but even with these there are still a lot of variables that can be differ depending on who is putting together the calculations.  

And there are many reasons that a company such as ours, would choose to underwrite in house (Delegated Authority) or at the investor (Non-Delegated Authority).

Note that NAR's current requirement now reads: REALTORS® shall only be obligated to discover and disclose adverse factors reasonably apparent to someone with expertise in those areas required by their real estate licensing authority.

I've read several articles and another one just last night where the author had basically said the landlords are the bad guys because many tenants don't even know there's a moratorium in place or the steps they have to go through in order to get the moratorium protections.

Many lenders rely on brokers and affiliates to bring business in and who really have no underwriting or decision-making authority.

We have also had others sign for us by sending the title company,  our company resolution that, so and so, is an "authorized agent" to sign settlement documents.

I would complain to the local taxing authority and be prepared with comps to determine values.

See if the Finance Authority of Maine would help you out.

Your lender is going to require a "100% rebuild letter" from the taxing authority or planning and zoning authority.