*Only one of the units was vacant, so we haven't seen the bottom unit yet - one has to be open to imagining the possibilities that exist, sight unseen.  

The most dangerous situation is the landlord that owns 1 property.If you are midway between residential and commercial (5 properties) the insurance companies start considering you a risk and will only cover you with  more expensive commercial policies that require you to go to LLC's while LLC's might not be appropriate for someone getting new mortgages and has existing mortgages.What is the saying-go big or go home?

Last, is there any realignment of the lateral that would still allow you to use the existing tap but not require going under the driveway?

Why not just search for existing topics, like this one?

An existing area "is what it is".  

to help people understand and analyze these types of opportunities, as no other book / course exists that helps investors with that as far as I am aware.

I'm assuming those two cabinets above the shower were pre-existing?

Actually "subject to" the existing mortgage may work here.

You're right @Micah Copeland, thought in my area the prices tend to be a lot closer when someone else has an option on an already existing wholesaler contract: a few thousand bucks here or there. 

My first home has gone up in value 55% & I'm working on buying a new home and turning my existing into a rental rather then selling it.