They always get a lot of demand. 

When bonds are sold, these yields go up, meaning investors demand higher returns for the risk.

I think you hit the nail on the head with the STR demand likely decreasing with supply and lower demand after COVID.

And what happens if there are change orders, such as an inspector comes and makes an 11th hour demand, there's an easement somewhere, or something like that? 

This will give a better idea for the demand for the property and will give you a better idea of how much cash flow to expect.

So that means that we should then see supply drop and demand start to increase more which should lead to more rent growth, appreciation, etc.

Many large financial institutions are fond of the build-to-rent industry because demand for housing is strong and because new constructions require less maintenance and are a more predictable investment than older homes.

That is a whole different animal, and I do not have experience with that.

That, in addition to experienced investor advising others to treat certain tenants like animals has just made me not so motivated to participate like I used to.

but there is such tremendous demand by investors that if they see something that's been cleaned up, they will all pounce.hope this helps