I would make a concrete plan ahead now we are looking at refinancing in terms of getting this back on track.

Strict IRS rules must be followed to ensure the transaction is compliant. 

Their response...I rather pour concrete down the drain than sell to you.

 Emotional Support Animals are not protected by the ADA or Tennessee's SERVICE ANIMAL LAWS.

I have also considered having the concrete polished but there are a few spots that have patches and/or  leveler and I am not sure how well it would come out?

It's bizarre to me the lack of concrete, proactive planning.

My thought is a large concrete wall higher than it and the flume as well as additional fence, soil, tree boundary.

R-value on a slab depends on a lot of things, with the biggest variables being thickness and density of the concrete.

Are there any standard practices for acknowledging their contribution in the transaction, or any recommended ways to structure this working relationship to ensure it's beneficial and compliant for all parties involved?

All these things I am telling you not to do, are hard, expensive, time-consuming and they anger and upset people, not to mention that a lot of those tactics are becoming illegal.I am here to tell you, show you and prove to you that you do not have to nor should you do these things.My wholesale deals trump most of y'alls elaborate high-risk flipping profits, while:I don't low-ball anyone,I don't lie to anyone,I don't trick anyone,I don't spend a cent on marketingI don't lift a finger on marketing.I don't chase anyone.I simply tell them exactly what I am going to do, 100% transparency.Now here is some actual concrete proof: ($128,816.06) for one wholesale deal.I am not selling you anything.