For me there was no excuses I'd accept, you need to see inside to verify condition and run repairs.

Verify air filter has been changed regularly.

I agree with @Mark Munson  You really have to verify the repairs and the ARV yourself. 

Check your state law to verify this is allowed.

They are basically telling you to trust them with no ability for you to verify.

Based on this disclosure and the constraints they put up for showings, inspections and contracts, it is not possible to do proper due dil, which is why I chose to never work with them in the Denver Market.In the immortal words of Ronald Reagan, "... trust but verify"!

I have male seniors whose income is verified thru retirement/disability payments.

It's important that you verify the coverage type though as that can make a huge difference.

I verified with the city and investors can add them with meters on single-family homes as long as there are no deed restrictions.

I had even set up payments to my bank account through Zillow that was verified.