Customer service doesn't even begin to describe this chain of events; this is guided missile level sales follow up and over the top attention to detail and customer attraction.

Bigger Pockets is a great place for education and networking and is full of great content.I recommend that you check out the following resources:If you want to network or ask specific questions about your local market, go to your local real estate forum and connect with investors from your area: https://www.biggerpockets.com/forums/86-local-real-estate-networkingYou can meet local investors by registering to attend real estate events in your area: https://www.biggerpockets.com/forums/521-events-and-happeningsGood luck.

@Brian Ploszay definitely had some great insight.To expand on his first point, I think a "triple net lease" would be a good model to try to follow.Also, make sure that in the event your optimal tenant (drug rehab) were to move out, you have multiple exits to help you sustain any market downturn. 

You can meet local investors by registering to attend real estate events in your area: https://www.biggerpockets.com/forums/521-events-and-happenings6.

I suspect that you might have been told that (about not walling-off the door between up and down) because if they don't have a way out from downstairs, in the event of a fire, they have to be able to get out. 

You can meet local investors by registering to attend real estate events in your area: https://www.biggerpockets.com/forums/521-events-and-happenings6.

You can meet local investors by registering to attend real estate events in your area: https://www.biggerpockets.com/forums/521-events-and-happenings6.

The website will only allow you to select the 3 days of the event. 

You can meet local investors by registering to attend real estate events in your area: https://www.biggerpockets.com/forums/521-events-and-happenings6.

I have a event in Vegas in a few months just for PMLs, if you are interested in that!