You're trying to justify the purchase price as an investor.

They can determine a higher value though...so you have to be confindent that your evidence justifies a lower value.There are professional companies out there that will fight for you. 

However, even if it was not the tenant's fault, the tenant's lack of reporting the issue still shows a level of incompetence/negligence that puts you at serious risk--and which more than justifies looking into eviction options (or, at minimum, not renewing their lease).And, as others have mentioned, there are a litany of other serious red flags here from the tenant and the PM that justify corrective action on your part.

The only thing you can do is provide your own comparable properties and justify why they are better comps.

I can't fathom why they feel justified making more a fuss than new tenants.

However, given my current tax burden and particular life situation, there is enough benefit to complicating things to justify the cost and time burden. 

This can be very expensive and is usually the worst choice to make because you can't justify the cost.2.

If I was going to dig deeper, I would ask how justified the amount of your current liabilities are, being $750K combined, but I'll keep the focus on your original question.

Fees should be clearly stated in writing, easy to understand, and justifiable.

Although the tax hit is likely not worth it if you already can justify to the feds all your income is passive.