In some cases, if the ARV is outlandish or the change in value is rapid and extreme (ex: purchasing for $100k last month, appraising for $500k thirty days later), it may need to be supported by a CDA or evidence of repairs/upgrades. 

For clear evidence, you may want to consider an air quality monitor specifically noted for detecting a range of smoke types.

I would say 80% of homes at inspection have some evidence of insect or rodent droppings somewhere.The way I am reading what you are writing is that this is not a mold problem.

A proof of funds letter without any credible evidence to support it is empty rhetoric and a waste of your time.

Your testimonial can be the most powerful evidence/message/value proposition.How much were you able to save monthly by househacking vs. renting or owning a single family property?

Evidence builds confidence!

Quote from @Jon Martin:Try wearing a Ukraine flad in Russia or a Free Tibet or Uiygur shirt in China and let us know how that goes for you.Oh, that's your evidence for how "superior" the US to everywhere else........

If they can’t provide evidence of this, or a Visa (student, etc) that authorizes the duration of their stay, then they’re here illegally.

. - Evidence of water damage in the basement. 

Losing $50k through this is not ideal, but I’m fortunate that it is not a painful sum to lose.What I am seeking is advice on how to leave evidence in the public record that could be found by future landlords and limited partners vetting the GP, who’s seeking $8M total / $250k each from accredited investors per facility as he seems to have a plan to move around the country opening facilities.A $57k bill could be a devastating to many landlords, and I want to help prevent them from experiencing a similar situation.