Matthieu Hassen
Partner
16 Avenue Hoche
75008 Paris, France
T. +33 (0) 1 45 020 800
F. +33 (0) 1 45 020 810
paris@bonnard-lawson.com
Email: mha@bonnard-lawson.com
With significant experience in leading insurance companies, notarial groups and private banks, Matthieu offers tailor-made solutions, considering the human and financial particularities of his clients’ assets.
His approach is based on an innovative combination of techniques drawn from corporate law, civil and family law, tax law and finance, with expertise in business valuation and financial structuring.
He favors a global vision, aligned with his clients’ current and future life trajectories, to ensure perfect coherence between their projects and their objectives.
At the same time, Matthieu shares his expertise by regularly training legal, financial and wealth management professionals – lawyers, notaries, chartered accountants, private bankers, family officers and others – on key topics such as business transfers, wealth management and crypto-assets.
He is a member or correspondent of several professional associations:
NCE Notaires Conseil d’Entreprise
IACF Institut des Avocats Conseils Fiscaux
ACE Avocats Conseils d’Entreprises
IFA French Institute of Directors
Education
Université de Nantes, Diplôme Supérieur du Notariat
Université de Paris-Saclay, Master 2 in Business Law, specializing in Mergers & Acquisitions
INSEEC Business School, Specialized Master in Taxation, Business Law, Consulting & Management
Languages
French
English
Professional Experience
Partner, Bonnard Lawson Avocats Notaires, since January 2025
Founding partner, Thésée Avocats Notaires, 2019-2024
Wealth Planner, Banque Privée Caisse d’Epargne, 2016-2018
Legal and Tax advisor, Althémis, 2012-2016
Legal and Tax advisor, UNOFI, 2004-2012
Practice Areas
Property law
Wealth planning
Real estate law
Corporate and individual tax
Corporate law and et M&A