The county will have no issues with this procedure, for her, because she was abusive of your resources and you have documentation.I like the home warranty idea.

are kids better than adults as far as wear and tear and property abuse or the other way around ?

She collects SS for a living and he has been a bus driver since forever. 

Many things can annoy neighbors if they are abused.

The business across the street had been allowing my tenants to park in his lot in the winter if they paid him $200 for the season, but they abused the privilege, messed up his plowing, parked more than the allowed number of cars, etc.

The risk of abuse by tenants is far to high to ever allow any tenant those discretionary powers.

Could possibly get rid of a tenant abusing your property.  

The latter is abused horribly.

I have found that tenants do not abuse having access to your cell phone number.

If they have prior felony or misdemenor convictions in a list of areas (sex offenses, drug-related charges, dishonesty / fraud, violence, child or elder abuse) they are not qualified.