If you are in coal country this makes the possibility a bit higher , sometimes a new shaft will change the ground water flow effecting a well .A friend of mine is in Confluence Pa , his well is 1300 feet deep , and it produces 2 gallons per minute , he has 4 Large pressure tanks to have reserve water .

You are missing the most important thing you can buy yourself,an education.You need to meet with professional wholesalers who have been doing this successfully for some time and ask them how they do it.Apprentice yourself to them for free doing their ground pounding work learning the business as a young college student intern would.Learn how to put together a large list of cash buyers and flippers who need the properties you find to sell them.Learn how to carve out a good territory to farm that has several homes sold in the last two years for top dollar prices and sold the fastest (less than 30 days).Learn how to use postal workers,utilities people,and others to spot bad houses that might be able to be bought cheap.Use high school students involved in sports teams or band to seed your farm with cards and fliers door to door at every property and give them a tax deductible donation to their groups.Promise them a bigger wad of cash if you sell a house they bird dog for you(tax deduction!).

Any one doing or have done ground lease NNN development?

in terms of TITLE Insurance, you can buy a Lender's policy (Usually required by a Lender-- you purchase it for them) an OWNER's POLICY (Covers the Owner costs a little more but not a lot) a LEASEHOLD POLICY (Usually used in the event of a Ground Lease; consider telecom, solar, and stand alone commercial buildings) and ENDORSEMENTS to any of the above.

Moving slower on solid ground is a good strategy too. 

It seems like insurance premiums may go through the roof if importing or exporting expensive cargo by ground to/from Mexico or Canada.

As far as managing yourself, if you have the time and helper bees on the ground, and it is a home that attracts above average renters...IMO have at it as there is everything online and off to make that possible. 

Do you include in your leases the failure to pay the additional rent for utilities amounts to grounds for eviction?  

For you new JVs I hope this helps from the "on the ground" side.

Of course, do not go most expensive, but that middle ground will save money in the long run.4.