I did not understand the point you are trying to make, and I hope you add more details, but are you putting your house as collateral in exchange for cash and using it to invest in bitcoin? Bitcoin is a high-risk investment and try to look smart by buying it against mortgaging your assets. Payment term and be forced to sell at a loss. Do not invest in bitcoin with money that you need soon or linked to deadline time.
I think the op could arrange a loan where anyone can borrow money by collateral bitcoins to him. In this case, it can be useful for those individuals who want to hold Bitcoins without selling them, but on the other hand, do not currently have enough money to meet any of their needs. In that case he can borrow money by collateral his bitcoins and later repay the money and get his bitcoins back. I'm not sure that's what the op meant. But I could guess that from reading his post