For international advisers

French business lawyer
for international law firms and advisers.

Your clients need legal support in France. Lancier Avocats acts as French counsel alongside their existing lawyers, accountants, tax advisers and business advisers. Work directly with Guillaume Prom Thiounn, an attorney at the Paris Bar, in English or French.

01 / Establishing a French business

French subsidiaries & company formation.

Legal structure advice, review of foreign corporate shareholder documents, tailored incorporation acts and registration coordination. We identify the French requirements and work with you on the documents your client needs.

Company formation support

02 / Ongoing legal support

Corporate governance & contracts.

Corporate approvals, changes to directors or capital, shareholder arrangements and commercial or intragroup contracts. A named French lawyer for agreed ongoing support or a specific legal question.

Corporate and contract support

03 / Transactions

Investment, acquisitions & restructuring.

French corporate and transactional support for investment documents, acquisitions, legal due diligence and group restructuring. We coordinate our agreed French legal work with the other advisers involved.

Investment and M&A support

Working together

Your expertise. Our French legal support.

Contact us for a single matter, a client introduction or ongoing collaboration. We agree how we will work with you and your client before accepting the engagement.

  • A direct point of contact: Guillaume Prom Thiounn, Paris Bar lawyer
  • Scope, deliverables and fees agreed in advance
  • Client relationship, instructions and updates agreed with you
  • Communication in English or French

We review conflicts, client consent and confidentiality at the outset. Each professional remains responsible for their own services. Tax, accounting and other jurisdictions’ legal advice require their own agreed scope with an appropriately qualified professional.

A French lawyer alongside your client’s existing advisers.

You can remain involved in the relationship and coordination with your client. We discuss who instructs the firm and how advice is shared, so the client understands everyone’s role. No network membership is required.

Questions from international advisers

How we can
support your clients.

Discuss a matter or collaboration

Your French
legal point of contact.

Tell us about your profession, firm and the French legal support your clients need. We welcome enquiries from advisers worldwide, for individual matters or ongoing collaboration.

Please omit client names, confidential documents and sensitive details at this stage. We can arrange the appropriate exchange after an initial conflicts review.

For your own company formation or legal matter, use our client enquiry page. Sending an enquiry does not create an attorney-client relationship.

Discuss French legal support

Tell us about your work, your location and the collaboration you have in mind.

We use these details to respond to your enquiry. See our privacy policy. Please keep confidential documents for a later, secure exchange.