If the person in respect of whom habilitation has been granted performs alone an act the performance of which was entrusted to the habilitated person, the act is void ipso jure without it being necessary to prove any prejudice.
If he or she performs alone an act the performance of which required assistance from the habilitated person, the act may be annulled only if it is established that the protected person has suffered prejudice.
The obligations resulting from acts performed by a person in respect of whom a family habilitation measure was pronounced less than two years before the judgment granting habilitation may be reduced or cancelled under the conditions provided for in Article 464.
The authorised person may, with the authorisation of the guardianship judge, initiate alone the action for nullity or reduction provided for in the above paragraphs.
If the authorised person performs alone, in that capacity, an act which does not fall within the scope of the authorisation issued to him or her or which could only have been performed with the authorisation of the judge, the act is null and void ipso jure without it being necessary to prove any prejudice.
In all cases, the action for nullity or reduction is brought within the five-year period provided for in article 2224.
During this period and as long as the empowerment measure is in progress, the contested act may be confirmed with the authorisation of the guardianship judge.