I think using different notaires could waste a lot of time. Think about it, they have to communicate with each other as well as with their respective clients.
When we sold our house, the buyers who were from St Omer wanted to appoint their own notaire but I persuaded them to use our local one, pointing out that they could appoint madame's parents (who lived nearby) to sign the acte if they didn't want to come all the way again from St Omer.
For my part, I didn't want more to-ing and fro-ing with questions to answer as I was able to deal with most things on the phone or to pop in with documents to leave with the notaire's secretary. Just as well as it was a complicated sale and could have been strung out for months. TBH, I wanted the sale to go through quickly as it was becoming a bind going back and forth to ventilate the house and cut the grass.
Apprendre une langue, c'est faire un voyage différent chaque jour.
from Fle pour les curieux