I knew these individuals (no scare quotes required) personally before I rented from them.
But sure: If you want to bet that you're right about a very specific situation that you have no specific knowledge of, then don't let me stand in your way. A fool and his money are soon to part.
I think you're misreading his intent. It may not be the case for those you rented from, but over the last 15-20 years, the standard practice for them has increasingly become "Form an LLC".
In most cities, when you rent a detached house from a corporation, it's really one individual behind it.
But sure: If you want to bet that you're right about a very specific situation that you have no specific knowledge of, then don't let me stand in your way. A fool and his money are soon to part.