That's the one big red flag I see, other than potentially negative cashflow in the future.

If they decline to share, that is a red flag which would warrant walking away or at a minimum substantially reducing the price instead and basing the offer on your own numbers validated by third parties.

I have a 1/1 in Redding, CA.

Im just curious how any of you would handle this problem and if you would see this as a red flag in a long term tenant.

Some red flags alerted me because I have seen this scam a ton recently.

Furthermore, actual solutions to housing’s unaffordability in the United States have been largely ignored as political activists chase after this red herring.How Many Houses Has Wall Street Actually Bought?

I'm getting good at sniffing them out thanks to these common red flags: they often have a foreign accent, they can't meet in person, they are looking for a quick cash sale so they're okay with me listing it below comps, don't want a "For Sale" sign placed at the property, etc. 

That is a huge red flag for me.

The involvement of onsite management, often seen as a potential red flag, can lead to the property failing crucial qualification tests.

Confirm the building doesn't have a red X on it??