Article 505 of the French Civil Code
The tutor may not, without authorisation from the family council or, failing that, the judge, make any dispositive acts in the name of the protected person. The authorisation determines the stipulations and, where applicable, the price or upset price for which the deed is made. Authorisation is not required in the event of a forced sale by court order or in the event of an amicable sale with the authorisation…