It's good that they can't, but even in the stock market you can get perpetual gradual margin calls that you can continue to meet if you felt like it, as long as

It's good that they can't, but even in the stock market you can get perpetual gradual margin calls that you can continue to meet if you felt like it, as long as they were gradual and not steep then a good broker will not liquidate your position at the lows. I'm mainly responding to provide helpful context to others. Not for a typical pedantic thread where we are already agreeing with each other but just squabbling over semantics. I would say this is the primary savings grace for real estate investors and homeowners. They get to build equity in so many scenarios that it works out for them and lets them maintain access to low cost capital, against the equity they build up.