If not, what is it about hard money lending/borrowing that would preclude this sort of business model from succeeding.

I used cadet 3, Toto and the best one was from costco. they have only one model and was worth the price. 

Instead of re-glazing, which is basically a high-tech paint job, and replacing, which involves chopping out the old one and replacing it with a 2-part tub & surround combo (necessary in my homes), a relining is a drop in acrylic shell that's precisely matched to the make and model of the old tub.It's supposed to cost a lot less than a completely new tub (you're not removing the old one) and more of an upgrade than refinishing.

I don't know anything about the models they use, but my guess is that it has to do with actuarial models of some sort, which are pretty complicated.John T.

I think enough time has passed that the tax buyer could go petition the courts to gain possession.

If I model this with tax software as a donation it does more than pay for it, but my builder just told me that for a spec home that I immediately sell after construction, the deconstruction benefit only changes the basis on the sale and won't be as beneficial as a donation deduction.I do plan to have a CPA do the taxes for this project next year, but don't have a CPA now and don't have the time to find one before the project starts.So, deconstruct or demolish?

My background is in residential project management, I have a Texas sales agent license(inactive) and am currently studying full time, the commercial side of real estate and proforma modeling. 

Coming from Finance, I am sure you will have no problem building models to analyze properties.

The business model I developed, the infrastructure, and people in places handle everything!

I am trying to model a deal for someone involving a silent equity investor (LP) with a waterfall analysis, I do not have much experience with that type of modeling.