My and my sister's bedrooms were up in the attic and our walls looked a lot like what you have there @Ryan Richard The entire place is about 1200 sf and had a 2 ton A/C unit in Orlando, FL and that was fine for cooling even in the summer.The upstairs would get a little warm during the day but that was more due to the air return being down stairs and not having enough return air flow from the bedrooms.

Scrape off whats there , go to the local self service car wash and clean it , or grab somebodys pressure washer blast it clean and put it back .

NOT UNDER DURESS: I am not under duress and have signed The Agreement of my own free will, without any undue financial pressure.

Are the people you contact making you feel like they're trying to upsell you or use high-pressure sales tactics?

That's what the vents are for is to allow air to pass through and dry out the moisture to keep mold from forming.

If there's "give" to any air bubbles between the paper and subfloor, that's where the floor will fail.

Do you just use air bnb or other sites a well?

Gentrification is the buzz word these days, and will only create upward pressure on home prices near and around SF.

Of course interest rates will rise eventually and put pressure on housing prices.

Unless you strip out all the drywall, too, it's just going to take a little time to air out.