I think your concerns are misplaced though.....If I were you, I wouldn't be concerned about the tenant not paying rent, I would be more concerned about your liability You have had an incident and you now know about the situation....if anything bad happened, you would be in serious jeopardy.I'd focus on getting rid of the front tenant....what does your lease say about all this?

What I don’t remember is how fast misplaced place people seek permanent homes.

I listened to an episode of the short term show with @Avery Carl and she had a guest that rented mid term to people that were misplaced from their houses while insurance claims were being filed on their homes.

(Some people even specialize in selling property that they do not own.)I am not a landlord and have never been one so your attack against everyone who disagreed with you is misplaced.

Try looking for a specific size and type of a metric screw and you'll tear your hair out since the drawers are usually either empty or filled with misplaced items.

My only thought is to ask for a special reconsideration on the basis that according to them they lost/misplaced/didn't receive the info you sent "due to covid".  

It takes up your time, which is money.Now the risk part, you have to drive home/to the bank with the cash (more time wasted), you have to hope you don't lose it/misplace it. 

Write him back and ask him if he mis-placed a decimal.

We did have a lock box as well, and so many people were misplacing keys or locking themselves out.

Once work begins, this also makes it easy for contractors to come in/out of the house without having to worry about a door being left unlocked, key misplaced, or running over to let someone in.