The problem to find a notary and a lawyer is not much of a hassle but the problem will be to find a customer who will be willing to accept crypto in order to sell the house. Usually, people will hesitate to receive payments in cryptocurrency as they believe that due to the highly volatile nature of crypto, the price may dump and causes an instant loss.
Secondly, these crypto transactions can only be executed publicly in a country where crypto is legal and the government has no objection to transacting publicly in cryptocurrencies.
As far as the tax is concerned, the parties will have to pay the taxes, either way, whether those choose fiat to execute this deal or use bitcoin/crypto.
Loss when the price of cryptocurrencies decreases is not the main reason. For example, I would sell real estate for cryptocurrency without any problems, because I don’t want to deal with banks, and a cash transaction is not safe.
But the seller of real estate has another problem in the form of a tax declaration of cryptocurrencies later. Money in a bank account from the sale of real estate should not be subject to additional taxes.