There needs to be a massive price difference which means small.

Legal Entity Considerations: Should I hold my rental properties in an LLC or trust for liability and tax benefits, or does it not make a difference for me?

This Wikipedia page gives different wall types and how well they block sound.  

Check out the different Forum Categories here as they can answer a lot of questions you have just reading through.

Then look at different REI to scale to that number.  

Steps: you go under contact with the owner of the property, you assign the purchase and sale agreement to the end buyer, the end buyer closes, and you get paid the difference between the agreed-upon price between you and the owner and the intended purchase price of the end buyer. 

Waivo has a different but similar product they sell directly for STR.

You are correct; it would be awkward having two different parties staying on the property. 

It might be payment notices are going to a different address and it is simply overlooked. 

A detailed screening process and ongoing training can make a huge difference in performance.• Clear Guidelines & Performance Metrics:Defining clear expectations, call scripts, and performance benchmarks helps maintain consistency.