The main issue with older slabs is the HVAC was put in the floor.

My main contractor doesn't have the resources to complete both projects at the same time.

Also the main source of revenue for Zillow is from selling leads and zip codes to individual agents. 

We've looked into some of the numbers regarding setting up a functioning field: Rental equipment, store/shop, compressed air supply, climate controlled storage for paintballs, liability insurance, staffing expenses, etc.

My main goal (and I have no idea how realistic it is) is to create an emergency fund.

My main point in writing this post today is to warn other investors to not use this guy and to please do your homework. 

My main goal is to learn as much as possible about this fascinating world of real estate investment and realize financial and personal freedom.

basically the steps would be1. drive to find a potentially qualified house.2. find out who lives there and what their mailing address is.3. put them into your mailing campaign to start sending them lettersim mainly looking to outsource #2 and #3 and curious as to how you guys do it.  

High demand, little supply of available property for us to build on, and a permitting process that was to time consuming. 

It's all a very interesting study in supply and demand.