The workmanship around roof penetrations in the initial install has to be done correctly or you will have problems.

Later embraced as an tool for Equal Housing Opportunity, Section was first and foremost a stimulus for the "private sector" and an alternative to government run " Public Housing".

I am just getting started as a landlord, but came from an IT and accounting background, so I embrace technology.  

Very impressive.It sounds ike it has ended up being as good as it could get for you.It sounds like you know what you are doing and you are going to go the extra mile and do what ever the extra work and sub contracting is  needed  to come out whole and  with some extra moneyNothing wrong with that and there is a lot right with it.You have embraced the extra job of monitoring this and sub contracting it and you are entiteled to come out of this  smelling like a rose.Good luck to you

Does it sit on clay and it is contained or is it really earthy soil where the oil can penetrate deep, also is the property close to water or a downspout where it is being projected over a large area?

This includes, but is not limited to, repairs to the following items not caused by Tenant or Tenant’s negligence: Heating and air conditioning systems; Water heaters; or Water penetration from structural defects.ii.

In general, the real estate industry has not embraced new technology, so most ideas are good, as there may be no tech solution at all for many things.

In this section I provide my name and number (I manage all 5 SF rentals myself, remember) along with a statement which reads "Tenant will pay Landlord the first $250.00 of the cost to repair each conditiono in need of repair, and Landlord will pay the remainder, except for the following conditiosn which will be paid as follows:..." and then it goes on to discuss 4 conditions which are "Landlord negligence", "wastewater stoppages caused by roots/malfunctioning equipment", "health/safety issue not caused by Tenant or guest of Tenant", and "heating/AC, water heaters, water penetration".

At the moment, you've chosen to dislike it, while the rest of the world embraces it. 

Any side benefits are simply by happenstance.For me being able to embrace that there is no "meaning to life" has allowed me to grow to the point of being without guilt, without sin and free to do as I please for no other reason than it pleases me.