You still need a prescription from a doctor. https://www.akc.org/expert-advice/lifestyle/everything-about-emotional-support-animals/

See this article by Indiana Attorney, Patrick Murphy, discussing recent Indiana cases of Adverse Possession.If the driveway is on your land, and she has no easement, then it could be possible that your neighbor developed a prescriptive easement right to use the driveway by her and her predecessors using it along with you and your predecessors for 20 years. 

That's why unwritten doctrines such as prescription, adverse possession, parole agreements, unrecorded land contracts, wills, etc exist.

@Nicholas GrooverHard bitter pill first.

There's a field people are mindlessly pilling money into with zero understanding because it's "trendy"; 90% of apps will unlikely ever see the light of any iPhone screen.

Evictions are going to cost you and you're going to have to hire people, you had better be clear about that in your brain before you start walking down that path, at least in my county.What I worry about is what I can't predict: cheating wife, sudden employment termination, huge gambling loss, drinking and pills binge leading to suicidal behavior.

In your case here, there's probably a prescriptive easement through the church area that you can have enforced if it comes down to it.

Doctors are writing prescriptions without verifying the need, making any attempts to correct the actual problem, or considering how it impacts society or business owners.

Everyone goes out trying to find the magic line, that pink pill of wonders.NO dude.You cant just go out there and expect to make deals no matter how much marketing you send out.

I found Appfolio to be the best but the price was just a tough pill to swallow so I declined.