What happens if I buy today and your company goes to hell in two years? How can I trust this transaction with a horizon of 3 years without fully knowing how are you going to perform as a company.
Of course, if you disappear and I don't have to honor the 20% it's a win for me, but if I buy based on your data and after 3 years the property value is way down and you're not around to honor your loss-covering promise then I'm fucked. I bought a house because you told me it was going to appreciate, but it didn't. Now what? Do you have a way to pay me back even if your company is not around anymore?
There's something about the model that doesn't make sense to me.