So how does it work if your system values a property above what it's actually able to sell for? It sounds like so long as you value the property at or above the initial purchase price, there is $0 set aside to pay out any loss of value claims. If the owner sells into a falling market, and needs to sell for less than the initial price how can you pay out? Why wouldnt they just take any price they can get if they have 100% downside protection?
Moreso - if the overall housing market is falling, how does the business survive if all of your customers sell at a loss? I can't think why someone wouldn't sell if they have 100% downside protection and can then move into a cheaper home.