As from the publication of the opening judgment, the irregularity of acts performed by the protected person or by the person entrusted with his protection is sanctioned under the following conditions:
1° If the protected person has performed alone an act that he or she could have performed without the assistance or representation of the person responsible for his or her protection, the act remains subject to the rescission or reduction actions provided for in Article 435 as if it had been performed by a person placed under legal protection, unless it has been expressly authorised by the judge or by the family council if it has been constituted;
2° If the protected person has performed alone an act for which he or she should have been assisted, the act may be annulled only if it is established that the protected person has suffered prejudice;
3° If the protected person has performed alone an act for which he or she should have been represented, the act is void ipso jure without it being necessary to prove prejudice;
4° If the tutor or curator has performed alone an act which should have been performed by the protected person either alone or with his or her assistance or which could only have been performed with the authorisation of the judge or the family council if it has been constituted, the act is void ipso jure without it being necessary to prove prejudice.
The curator or tutor may, with the authorisation of the judge or the family council if it has been constituted, initiate alone the action for nullity, rescission or reduction of the acts provided for in 1°, 2° and 3°.
In all cases, the action is extinguished by the five-year period provided for in article 2224.
During this period and for as long as the protective measure is open, the act provided for in 4° may be confirmed with the authorisation of the judge or the family council if it has been constituted.