You're a bit too nice, nothing wrong with nice, it works out just fine when the other parties play nice, but this tenant you have is a user and abuser, she takes advantage of nice and will continue to until you train her otherwise.  

It has been my experience that if they put off paying that long, they are also abusing the rental.

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

Then I found out her sister was in an abusive relationship and her boyfriend had recently been in jail for beating her, but he has changed...

HUD knows that tenants abuse this law.  

Could possibly get rid of a tenant abusing your property.  

Here is the Seattle definition: “Discrimination” means any conduct, whether by single act or as part of a practice, the effect of which is to adversely affect or differentiate between or among individuals or groups of individuals, because of race, color, creed, religion, ancestry, national origin, age, sex, marital status, parental status, sexual orientation, gender identity, political ideology, honorably discharged veteran or military status, alternative source of income, participation in a Section 8 or other subsidy program, the presence of any disability, or the use of a service animal by a disabled person.

You probably already know this, but elderly caregiver in PA means she has federal and state child abuse and criminal clearances.

Some people have abused "the system" (or lack thereof) resulting in more difficult environments for animals who are actually working for their handler.Here's to hoping that this is the beginning of the tides changing for property owners and the beginning of the end of fraudulent ESAs and the like.See this BBC article.

Any type of door will just be brutalized and abused so you just leave those open .