I’m ready to use my btc as collateral to buy property. I want to be able to prove I have x amount of btc and then use that to help

Secure a loan for a property. I don’t want to post my btc as collateral, and have to add more as the price goes down. Imo a bank that understands this will get all of the btc clientele. And they don’t take much more risk that with a regular loan. If people don’t pay back the loan they still get the property