My primary driver is isolation of assets in case of any litigation, but there may be other considerations of which I am ignorant.  

I can't imagine having someone else do this, because the renters usually have some complex questions and problems that need answering (cashing paychecks, getting a drivers license, FAX service, USPS UPS & FedEx, a good defense attorney, how to get back home without transportation, medical emergencies, vehicle emergencies, etc etc)

So, I encourage you to be careful thinking of owner financing as the chief driver of value. 

Look into Cleveland, its got good cashflow potential with appreciation happening as well.Looking for appreciation come to Columbus, there are still 1% deals, but the more attractive part is the population growth and other economic drivers!

That's going to be a major driver of how you structure your relationship with them. 

Realize the driver of residential real estate prices is jobs and act accordingly.

Everyone I see that is even remotely related to Real Estate I rave about this place 9 times out of 10 they get pen and paper and write down the address.Ok,About me, I am a 49 year old truck driver who's pension, for various reasons, is going down the toilet!

Make sure you have 2 forms of SIGNATURE ID, such as Driver License, Social Security Card, Credit/Debit Cards, etc.

It sounds like you have been in the drivers seat but have finally started driving!

In our local area, we have fruit packing house tours, four or five of the 21 California Missions are within an hours drive, visiting wine country and all the tasting rooms to our north (use a designated driver, please), there is Yosemite, Bryce Canyon, Zion National Park, Yellowstone, Glacier National Park......All of the above are just the things in the United States.