There are a few things I'm specifically interested --- Do wholesalers actually enter into a PSA?

You should contact that individual's unit to confirm they are a member.

Since they can't do each property individually, they use comparable sales to make broad generalizations to determine percent changes.

HUD might have programs or options for individuals facing pre-foreclosure due to COVID-19 related hardships.Communicate with Your Buyer: Discuss the situation with your buyer transparently.

I think this would be difficult for an individual to do.  

You see a house that is listed for sale, click on a box, enter 3 things...and eventually someone gets back to you. 

From page 730 (emphasis mine): "All non-business tax deductions and exemptions that were temporarily suspended by the 2017 tax bill should be permanently repealed, including the bicyclecommuting expense exclusion, non-military moving expense deductions, and the miscellaneous itemized deductions.23 The individual state and local tax deduction, which was temporarily capped at $10,000, should be fully repealed.

Let the seller’s agent know that you expect the money returned to you 30 days after the judgement of confirmation of sale is entered. 

If you use credit card for all expenses they are all auto entered.

I use the work tenant is quotations, because the lease was not signed with an individual, but rather a LLC for a property management company who subleased the home on AirBnb.