Part of this is on you you allowed them to move in and stay 5 years without it and trained them their behavior is acceptable.  

Big problem is that fraud and unethical behavior can be very profitable short term in syndicating investments.  

In addition, the owner of the home must not own more than three single-family homes.3) They are unable to provide sufficient documentation, such as the emotional support animal letter, that verifies the ESA is necessary for their health and well-being.4) The tenant provides fraudulent documentation attesting to their need for an emotional support animal (usually a fake emotional support animal letter).5) The landlord can demonstrate that making accommodations for an ESA would impose undue financial burden or logistical burden. 6) The animal is destructive to the property or displays threatening behaviors that could put other tenants or yourself at risk.7) The size or nature of the animal makes it impossible to house safely or humanely.

From technological advancements to shifts in work habits and consumer behaviors, several factors are reshaping the demand for commercial spaces.

It's important to communicate your concerns with the agent and if you feel uncomfortable or suspect any unethical behavior, it may be best to consider finding a different real estate agent to work with.

Also on a different note , I think there are safeguards in place to prevent such behavior .

The military doesn’t like this sort of behavior. 

Yes, you can terminate her lease for bad behavior. 

We recently had a large group; larger than what was allowed, stay at our home and their behavior was unacceptable. 

We also manage in some rougher areas where a lot more of this behavior is common.