There's nothing they can do about it.Even if Fair Housing does apply, they are clearly lying and trying to abuse the system.

If they lied about having an animal when they applied (or virtually any other lia on their application), I would terminate their lease due to lying to get the unit.The goal is to make it harder for a tenant with bogus ESA to rent our unit than it is for them to rent from another LL that does not require a petScreening.com profile or does not explicitly state tenant is responsible for costs associated with placing unit back into pre-animal state.  

That's still the tip of the iceberg - the Money lies in a targeted marketing campaign directly to the owners - that's where the Money is! 

Here lies the key, in #2.Keep the notes separate!!!

Before you waste the time showing them your units make sure to pre qualify them first, Even after you prequalify them, they may still lie to you.

The problem lies when a phony deed is processed and recorded and the property is sold within a day or 5 before the mailing can occur.

They are percentages, and they lie...or at the minimum tell you nothing of value. 

Hello!  My husband and I have one rental property - at the beach - which I haven't heard a lot about people investing in seasonal properties, like at the beach or mountains - so am interested in that.  We realized we ...

Not sure if it were raining up there or not but it sounds like it may be a lie then. 

If a Tenant is problematic, give them a written warning that all complaints must be by email and that you will not respond to unfounded complaints.I disagree with Brandon's advice to lie about your ownership.