I consider that more of a human-nature issue than passive-aggressive.  

We like the humans, and it may have been an honest mistake (though stupid).

Just brainstorming with people in the profession as there has to be a better solution with todays tech.I don't like to put the address on my keys also because of liability issues and I'm human and could lose them.  

Then the standard legal advice here in ON is that you be sure not to give a reason since this could open you up to complaints made to the Human Rights Commission.

.$200-$500 – additional security deposit for pets- refundable at the time of move – out if there is no damage to the property, caused by pets or their human guardians.$ 25 monthly “pet rent” – for every approved petLate fees – if rent is late – described in rental agreement after the 6th of the month a notice goes out pay or quit.

Whereas, if you just have a larger total security deposit, you can use it for whatever you need to - unpaid rent, damage done by humans, etc.3) If the tenants are paying the rent on time, then I would not put them through a reapplication process. 

Habitat For Humanity built the house a few years ago. 

So instead of your carbon footprint getting just slightly bigger from normal human use, you're giving your polluting "credits" to a professional polluter.  

I also plan to talk to a human realtor as well.

THE DECISION OF THE MONTGOMERY COUNTY HUMAN RIGHTS COMMISSION CASE REVIEW BOARD IS REVERSED, ENTERED.