All of this would be written out in an addendum to the sales contract and signed by both parties prior to closing. 

What would be the cost of sales if the whole thing doesn't work and you have to sell? 

Part of that means that the underground tanks and pipes leading to the pumps have to be up to current code. 

You can probably get a line of credit for your business and use that if you don't want to front the costs.

Rehab costs on anything more complicated can spiral out of control fast.

They had to purchase one cash then set it up.

I do understand that I screwed up and am taking it as a learning experience.

The investor is now dragging their feet and it's got me feeling like I need to come up with a contingency plan.Any ideas/leads on creative financing for the downpayment/funding the whole deal?

Even more are evicted informally.My company manages 400 rentals, and we evict less than 1% per year.How do you measure up?

Then if you want to pick up a first time investor buyer and show them the ropes of the most successful long term investors in your market you can share your time and expertise now and then.