In order to do that, you might want to go to a full service floor supplier to educate yourself on what qualifies as quality (being at the mercy of a salesperson is not a position you want to be in) and make absolutely sure that you have a handle on the install.  

Home Depot is free to shop at, and with all the online suppliers - many of whom have free shipping, it doesn't make sense to me to pay to shop somewhere... 

Space heaters - often times when you need them, the local suppliers are all out of stock.

Are all expenses ( property taxes, insurance, Federal income taxes, suppliers, etc.) current?  

If you want to be just the supplier of funds I would set this up as private lending.

Online suppliers have awesome prices.Take your time and figure out what each property is worth to you.

They should say we negotiate the heck out of our suppliers then market up their products 14%.

I'd also suggest you have alternate suppliers and SKU's for your items.  

They are a contractor or supplier.

Pipe inspectors, directional drilling tools, mud companies, trucking companies who move rigs, cable suppliers, motor parts, machine shops, tire sales, the list goes on and on.