Marie-Hélène Jan

Partner in charge of Vaughan’s Rennes office, Marie-Hélène Jan provides Vaughan’s clients with expertise in business law and company law, in addition to her knowledge of the regional economic fabric.




For over 20 years , Marie-Hélène Jan has assisted entrepreneurs and companies in forming or buying companies, as well as in structuring business groups.

Her long standing practice in western France has given Marie-Hélène Jan specific knowledge of the issues inherent in the new technologies, biotechnologies, mariculture, agribusiness and transportation sectors.

As a regular adviser to actors in the mussel farming sector, she is one of very few experts who provides advice to producers on their structuring operations and handles their defence (commercial and distribution litigation).


Partner (Vaughan Avocats, 2013-)

Managing partner of her own organization

Head of the legal department of an accounting firm

Master’s Degree (DESS) CAAE in Management (IGR (Management School) Rennes)


  • French
  • English