House prices are massively inflated (2-10x depending on the location of the house). I remember people saying in 2007 (before the last housing crash) that a particular house was too expensive at $300k. This year, that house is valued at $650k and nobody says it's too expensive. People across the planet (US, China, Europe, Australia, etc) are irrationally optimistic about home prices and they will soon begin suffering greatly for their irrationality.

Because housing prices are about to decrease substantially; the crash will begin within the next 24 months. If I had a mortgage on a house, I would sell immediately. Waiting to sell would be dangerous, because timing the market is how you lose everything. (The market punishes arrogance.)

It doesn't matter what Bitcoin does, because the alternative is that you could lose your house in foreclosure. At least if Bitcoin goes down somewhat, you still have something to sell. Moreover, Bitcoin's track record is far better than houses, accounting for the ups and downs of both.

If you do sell your house, you have two options:

• Sell the house for fiat and buy Bitcoin via a KYC exchange. The government will impose an annual tax on any KYC BTC, so to do this and keep your BTC, you will either have to move into a van or leave the country (i.e. move to a country that doesn't extradite to the country where the home was sold). And remember, tax bills don't expire.
• Offer the buyer a discount if they pay you in BTC. The discount will have to be steep (10-25%), but that's the only way you're gonna get that much non-KYC BTC at once. A critical aspect is that the buyer must put a fiat amount on the purchase agreement. If they put an amount of BTC on the agreement, then the government will instantly know how much BTC you received -- which is the same effect as buying KYC BTC.

Getting wealth is hard work. Keep that wealth is hard work. Losing wealth is as easy as accidentally telling the government you are wealthy.