We who knew and liked John were at first shocked and then saddened that he had "gone over to the dark side". those pump and dump schemes are still alive and well originating out of Utah.. 

You could speak to the renters, explain what you found, and see if they are willing to step away.In the big scheme of things, is the renter a danger to you, the property, or the community?

@Gino BarbaroPeople fail because many chase the “get rich quick” scheme

Let's tell the truth - learning these schemes can be hard and boring at the same time.

Since I didn't have proof who pulled the scheme, I couldn't prosecute.

some people mix them together (which only makes me remember less  lol)And like i said, it may sound nice to bring deductions to your 1040, but in the larger scheme it may not be a good idea or a sign of something else is wrong.Definitely consult a qualified professional about your situation. 

But in the grand scheme of things, if they WERE bad people and did that, or if someone else found the key and was checking the mail, that could certainly come back to bite me (say future tenants suspect someone is ruffling through their mail only to find prior tenants are coming back because they found the mail key when they moved or had it all along, etc). 

There's no crouching tiger, hidden dragon just a pyramid scheme with no ****s given about you. 

Ponzi Scheme!

Ponzi Scheme!