OK, so that could be legal, but if you want to be useful, give us the name of a notary who would accept to do it.
What fees do you suggest for finding a notary? I'm no longer useful for free in my old age

But you're used to real estate transactions, so explain what you want to your notaire and he won't really have any reason to refuse.
It's not for me. It's about being useful to the community here.
I would never buy a property with
BTC. That's an incredibly stupid idea. People who promote it have no business experience, or are crooks. Never use
BTC to buy real estate. That's my advice.
Being useful to the bitcoin community in that case ? Taking the directory to potentially find a notary in France who can arrange a sale for you in bitcoins, I do not see how it is useful to the community, especially since notaries also inform and form themselves. In addition we are not even on the local board (french).
The list of notaries who could accept bitcoins may therefore vary each day, depends of their curiosity/information. In addition you say yourselves that buying in bitcoins is stupid and that you have not even raised the issue with your notary. It would therefore be a waste of time to look for a notary today without any intention of buying a property with bitcoins. But out of curiosity, you can still ask your notary.
I gave a lot of info on real estate and bitcoin in France, which may be useful, but to serve as a volunteer secretary for a stranger who in the end finds it stupid, no really it's not useful