She is also under a very watchful medical eye. 

Does anyone own or operate a medical facility (as tenant or landlord)?

You're still just a property owner, not in the medical business.

Only time we allowed tenant to laps on rent for long period was one tenant had medical emergency and was in the hospital for nearly 3 months (obviously no rent). 

Think: slip and falls, tenant wipes out on an icy porch and tries to stick you with the medical bill, etc.

Hello Everyone, My name is Stephen and I am a recent medically retired veteran.

Early on, all cashflow went to the business to continue building and buying more... now it goes to medical bills and a stupidTooExpensive primary home... in a couple of years it will go into more investments.

Then tell them if they want to stay you need them all to complete an application and qualify and to sign either  year long lease or month to month agreement that will list all occupants and state no smoking of any kind (what out if they try to claim pot is medically required) and also require security deposit and last month rent (if you want to go there)Even if you self manage you need a good attorney to help with the eviction (at least the first one )

Has had some past "credit event" like a bankruptcy caused by a divorce, business failure, or medical issue which they need to get some distance from before they can qualify for a traditional mortgage.Rent to own's are terrible for:1.

NOTHING else, including baby wipes, medications, kitchen towel, tampons, and, especially, cleaners such as draino, Clorox, etc. should be put in the toilet.