What I don't like about this is the requirement to buy back their share after a fixed term (it looks like their longest term is 10 years). That makes the contr

What I don't like about this is the requirement to buy back their share after a fixed term (it looks like their longest term is 10 years). That makes the contract behave like a short position. If the price of my house starts to rise rapidly, I need to "cover" or risk not having the cash when the term expires. It's like being long and short in my house at the same time.