Apparent Authority of a Notary: Sale Annulled for Failure to Verify Powers

Imagine the scene: in Châteaulin, a couple of owners entrust the sale of their house to a single notary. To speed things up, he instructs a colleague from Pont-l'Abbé. But no one checks that the partner of the selling SCI (Société Civile Immobilière) actually has the power to sign. The result? The sale is challenged, the courts become involved, and years later, the Court of Cassation quashes everything. A simple question haunts every owner: how can I be sure that my notary has the right to act?

This decision of 5 November 2009 (No. 08-18.056) answers with principled firmness: apparent authority (i.e., the legitimate belief that someone has the power to act, without verification) can never suffice between notaries. Two public officers who execute a deed together must check each other’s powers, on pain of nullity of the deed. A lesson that resonates far beyond Brittany.

In practice, this means that if you sell or buy with several notaries, yours cannot simply rely on an apparently valid signature: he must demand written proof of his colleague's powers. Otherwise, the deed is fragile, and you risk losing the property or having to start over.

The Facts: A Story That Happens Every Day

Mr and Mrs Y, owners of a property in Pont-l'Abbé, had formed an SCI (Société Civile Immobilière) with their daughter to manage the estate. In 2003, they decided to sell to another SCI, SCI FAMA. To sign the notarial deed, they went to their notary, Maître A, in Châteaulin. But he was unavailable and delegated the signing to a colleague, Maître B, from the same office. On the day, Maître B received the sellers' consent but did not check that the partner of the selling SCI actually had the power to sell alone, in accordance with the articles of association.

Problem: SCI CORALIAN, which had bought the daughter's shares, challenged the sale. It argued that the selling partner did not have the power to sell without the agreement of all partners, and that the notary had not verified his powers. SCI FAMA, the purchaser, sought specific performance of the sale and damages. The first instance court ruled in favour of the purchaser, ordering the sale to proceed. But the Rennes Court of Appeal, in 2008, annulled the sale, holding that the executing notary had failed to comply with his verification obligation.

SCI FAMA appealed to the Court of Cassation, arguing that the sellers' apparent authority justified the sale. But the Court of Cassation dismissed the appeal: the two notaries, as public officers, had to verify each other's powers, and apparent authority could not dispense them from this verification. The sale was therefore null and void, and SCI FAMA could not even obtain damages, as it had not proved any fault on the part of SCI CORALIAN.

The Court's Reasoning — Analysed

The Court of Cassation relied on two legal pillars. First, Article 1599 of the Civil Code (in its applicable version) provides that the sale of another's property is void. But above all, it invoked the general principle that the notary, as a public officer, must ensure the validity of the deed he receives, and in particular the powers of the parties. It recalled that Article 1240 of the Civil Code (civil liability for fault) could apply if damage is proved, but here, the notary's fault was not established because SCI FAMA did not demonstrate that SCI CORALIAN had committed a fault.

The High Court clearly distinguished between apparent authority in general law and apparent authority in notarial matters. In general law, apparent authority protects the third party who contracts in good faith with a person appearing to have the power to act. But here, both notaries are legal professionals, subject to a heightened duty of verification. They cannot hide behind appearances.

The decision confirms a consistent line of case law since a 2002 ruling (Civ. 1ère, 12 March 2002, No. 99-21.511): the executing notary who uses a colleague must verify his powers, and apparent authority is insufficient. It goes even further: this obligation also applies to the notary who receives the deed with the assistance of a colleague. In this case, Maître A (the original notary) and Maître B (the one who received the deed) are both responsible. A reversal? No, a strengthened confirmation, anchoring practice in a requirement of absolute rigour.

If you are an owner in Châteaulin or elsewhere, remember this: a notary cannot sign a deed without having before him the articles of association of the SCI, the resolution of the partners, or any document proving the power to sell. The mere fact that the person presents himself as having the power is not enough.

What This Changes for You — Concrete Implications

Landlord owner: selling a property held by an SCI? Insist that your notary asks you for a copy of the articles of association and a resolution authorising the sale. Without this, the deed is fragile. Example: in Pont-l'Abbé, an SCI sells an investment property for €300,000. If the signing partner does not have the power, the sale can be annulled years later, and you will have to repay the price, with interest.

Purchaser: buying a property from an SCI? Do not sign without your notary having verified the seller's powers. If the deed is annulled, you lose the property, even if you are in good faith. In the Coralian case, the purchaser did not even obtain damages, for lack of proving a fault of the seller.

Tenant: indirectly, if your landlord is an SCI and the sale is annulled, your tenancy may be called into question. Be vigilant if you receive a notice to quit for sale.

Co-owner: the same principle applies to general meetings: the managing agent must verify the powers of the owners present or represented. A decision taken without verification can be annulled.

Four Tips to Avoid This Type of Dispute

• Demand supporting documents: Before signing a deed involving a legal entity (SCI, SARL, association), ask your notary to provide you with a copy of the articles of association and the resolution authorising the transaction. Keep them in your records.
• Check the signatory's capacity: If you are the manager of an SCI, ensure that the articles of association give you the power to sell alone. Otherwise, have a resolution passed at a general meeting before the sale.
• Do not rely on appearances: Even if the person seems legitimate, insist on written verification. A notary who is satisfied with apparent authority incurs liability, and you risk annulment.
• Consult a lawyer before signing: For complex transactions (sale of shares, gift, exchange), a preliminary 30-minute consultation can avoid years of litigation. In Châteaulin as in Pont-l'Abbé, the cost of an annulment far exceeds the price of a consultation.

Further Reading: Related Case Law and Developments

This decision fits into a strict line. In 2002 (Civ. 1ère, 12 March 2002, No. 99-21.511), the Court had already held that a notary cannot rely on apparent authority to dispense the counterparty from verifying powers. In 2015 (Civ. 1ère, 11 June 2015, No. 14-16.847), it extended this obligation to the notary who receives a deed under private signature countersigned by a lawyer: he must verify the lawyer's powers.

The trend is clear: the courts require maximum vigilance from public officers. The slightest flaw in the verification of powers can lead to nullity of the deed. For the future, the digitalisation of notarial deeds (dematerialisation, electronic signature) does not change the substance: the notary must still control powers, even remotely. Platforms such as "Acte Notarié Numérique" now include verification modules, but the responsibility remains personal.

Checklist Before Acting

• Have I verified that the seller has the power to sell? Ask for a copy of the articles of association and the resolution.
• Has my notary confirmed in writing that he has verified the powers? Insist on an express mention in the deed.
• If I am the seller, am I authorised to sell alone under the articles of association? If not, convene a general meeting.
• Is the purchaser a legal entity? Also check its powers: the representative must prove his capacity.
• What remedy if the deed is annulled? You can claim damages from the notary if he committed a fault, but proving fault is difficult.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of litigation — and often much more. Book an appointment →