What Every Notaire Should Demand Before Co-Signing with a Representative in 2026

Why the étude should set the bar, not the firm

In a non-resident sale, the representative is a service provider on the notaire premises, acting on behalf of a seller who is often far away and juggling more than one advisor. It is the notaire, not the representative, who signs the deed. That asymmetry makes the étude responsible for checking that the representative is who the mandate says it is, and that its insurance, accreditation, and process are current. Setting a written demand list, identical across partner firms, saves the notaire from improvising on the day and reassures the seller that the checks are systematic rather than personal.

The demand list, document by document

Ask for all of the following in a single email at the start of any file. A serious firm returns the pack within 48 hours.

1. Accreditation reference number and the date the current cycle began.
2. Certificate of professional indemnity insurance, current year, with the insurer name and the ceiling per claim and per year.
3. Extrait Kbis (or equivalent for individual practitioners), dated within three months.
4. Attestation of good fiscal and social standing, dated within six months.
5. Fee grid for the current calendar year, in writing, with caps.
6. Sample mandate, in French and in the language of the seller.
7. Named compliance partner and named backup, with direct email and direct phone.
8. Service-level commitment, in writing, for file replies, signing-day reachability, and post-audit correspondence.
9. Archival policy, in writing, covering the full recovery period of the French tax authority.
10. A sample reply to a post-closing audit letter, redacted, to illustrate the firm actual process.

Mandate clauses worth writing in

The mandate between seller and representative is not the notaire to draft, but the étude sees it before signing and can flag weak clauses. Three clauses improve most mandates. First, a named signing-day contact and backup, so the notaire can phone a human during the deed. Second, a fee cap stated in euros, not only as a percentage, to protect very large deals. Third, a post-deed commitment clause: the firm keeps the file, answers audit correspondence, and provides updates to the seller and to the étude for a stated number of years. A mandate without these three clauses is thin, no matter how polished the firm looks from the outside.

Direct access on audit

When the audit letter arrives, the tax inspector will often address the seller or the notaire first. A good representative firm accepts, in writing, to receive the letter directly and to reply within a stated window, copying the étude. Without that clause, the étude becomes the default inbox, which neither the seller nor the notaire signed up for. Request the clause, request confirmation that the firm has a dedicated audit desk, and request the name of the person who signs audit replies. That person is the one you will speak to twenty-four months after the closing.

Worked example

A Paris étude signs a deed in 2026 for a €2.2 million sale to a German buyer, the seller a Monaco resident. The notaire asked the representative firm, at the compromis stage, for the ten items on the demand list plus a reachable-on-signing-day contact. The firm returned nine items in 36 hours and initially omitted the PI certificate; the notaire pressed, the certificate arrived next day, ceiling €5 million. A year later, a tax inspector sends a routine check on two works invoices. The firm replies in eight days, attaches the original invoices pulled from its archive, copies the étude and the seller, and the check closes with no adjustment. Total additional effort for the étude: zero. Time saved versus a firm with no formal process: roughly twelve hours, and a worried phone call from a Monaco resident avoided.

Pitfall to avoid

The pitfall is accepting a verbal assurance in place of a document. A phone call where the firm partner says coverage is "more than adequate" is not a certificate; a signed confirmation that the firm is "fully accredited and up to date" is not an accreditation reference. Verbal assurances age badly; they also age inconsistently across junior and senior staff at the partner firm. Insist on the document, even from a firm you have worked with for years. The request is professional, not hostile, and the firms that find it offensive are usually the ones whose documents would not withstand scrutiny.

Pro tip

Create a one-page internal checklist at the étude, printed on coloured paper, stapled inside the jacket of every non-resident file. Tick the ten demand-list items as they arrive. When one item is missing and the compromis is in three days, the colour tells you at a glance. This is the oldest trick in a notaire office: visual controls beat memory every time, especially in July when holidays thin the team and mistakes compound quietly.