Unless I misunderstand the meaning of this thread, have your rental requirements in writing, available on the internet (e.g. via written policy statements), and enforce them uniformly.

And the uniformed, naïve pay to get the secrets of something that has been going on for thousands of years!

According to the Comptroller of the Currency: "A check is a negotiable instrument—the payee, the person to whom the check is written, may negotiate it through the banking system at any time" and check writers seeking redress must restrict themselves to pursuing the payee.[16]Nonetheless, if "the customer has given notice to the bank of the postdating describing the check with reasonable certainty" the Uniform Commercial Code requires that the notice to be honored.[17] In practice, whether the check writer has any redress against the financial institution where the payee deposited the check may depend on whether it can be shown that the check was accepted over the counter without examination

The only recourse you might have is if someone was actually "representing" you in some capacity, as this was an extremely foolish and uniformed way to enter a transaction.  

I did an early, short, big picture Seeking Alpha piece (Private Equity Binge and Purge or something or other )on this topic, arguing it may be hard to use single family at scale for  many reasons (like, they are all spread out and not uniform, etc)... 

All of it is public record.http://www.freddiemac.com/uniform/pdf/3014.pdf

I called you a cop hater because you cited one sided, uniformed positions of situations while concealing key facts.

@Taylor Green As Ann was saying, you need an attorney, especially in collection issues if you're not familiar with applicable laws.While HMLs have fewer lending restrictions that one lending on an owner occupied home (they do the commercial side) it's not the wild west, they are regulated and every business transaction is covered under the Uniform Commercial Code (UCC).Lenders can only "attach" property that is taken for collateral, a HML is not going (or shouldn't be) toward securing cars, or boats or non-business assets as that constitutes a consumer loan and they'll likely be in violation of consumer lending regulations.

Everything is negotiable but property managers enjoy uniformity in rules and regulations among their properties for the sake of ease and comfort.

It’s not uniform with such a radius.