@Tim Bartel any cat or dog over the age of 1 year is considered an adult and at that point several behavioral problems have been corrected and they should largely be up to date with pet vaccinations.

What are the other ways to ensure good tenant behavior?

For example, tenant behavior causes an insurance claim, and that claim leads to higher insurance premiums.

Behaviors don't change until there is a consequence for that behaviorIts always a balance of ethically wanting to stick up for what's right and the cost of doing it.

O, you can expect this behavior to continue.

Ray, thank you for the "Heads Up", on rent and renter's behavior - did you start the rental price at the high end and negotiated, if you had to, from there?

You'll have honor the financial terms of their lease but you should be able to change to the "behavior" parts of your lease.

This is poor and toxic behavior imo  the fact is though, that S8 are just people no different than anyone else, some are wasting air while most are outstanding humans.

Be prepared to get notarized statements from the contractors that were there, or have your attorney subpoena them to appear in court to testify about the tenant's threatening behavior. 

If you own the building, you need to distance yourself from any of her fraudulent behavior.