Let’s shape your future together

Historically located in Issy-Les-Moulineaux, GMH Notaires is now expanding in the heart of Paris.
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New year, new chapter: GMH Notaires expands in the heart of Paris to better serve your projects

Our firm is evolving and opening a new reception point at the feet of the National Assembly. With the arrival of Claire Cailloux, it is a reinforced team that welcomes you from now on closer to your projects.

Professionals

Public figures and social landlords

Private and public developers working on construction projects for office and commercial real estate.

Development operations and tertiary real estate

GMH is the usual advisor for public and private developers.

Real estate complex, construction, and real estate promotion

Assembly and monitoring of new real estate programs to facilitate sales with a dual focus on speed and security.

Commercial and corporate law

Assistance in business creation and management, as well as in the establishment and transfer of leases.

Individuals

Estate planning strategy

Assistance in organizing property relations within the couple, with descendants, heirs, and third parties.

International clientele

Long-standing expertise in the management of transnational estates.

Union and dissolution of couples

The firm has a specialized team for handling matters related to union and dissolution. 

Real estate operations & Individual financing

Intervention in cases of real estate sale and acquisition, loans, acknowledgement of debt, etc.

Negotiation and expertise

We put our expertise at the service of your real estate projects.

The team

GMH Notaires is a team of 11 civil law notaries and 43 legal experts and collaborators

who accompany individuals and professionals in their projects.

The associated notaries 

Olivier Herrnberger

Civil law notary & Partner

François-Xavier Munoz

Civil law notary & Partner

Clothilde Greff

Civil law notary & Partner

François Burneau

Civil law notary & Partner

Claire Cailloux

Civil law notary & Partner

Our certificates and labels

Our news

Discover here the news from GMH NOTAIRES, which reflects our involvement in the world of law. 

Actualité GMH

Cet atelier d’une journée, animé par Gwenaëlle Durand-pasquier et Olivier HERRNBERGER, vous permet de :– Maîtriser le champ d’application des VEFA du secteur libre et du BEFA– Mieux appréhender la...

Actualité GMH

Les États-Unis sont la septième destination privilégiée par les Français qui souhaitent s’établir en dehors du territoire national. Ces situations transfrontalières soulèvent en droit beaucoup de questions. On dit qu’elles...

Actualité GMH

La Vefa et la vente d’immeuble à rénover : pistes de conciliation au sein d’opérations complexes Les deux contrats coexistent de plus en plus souvent au sein de projets hybrides....

Actualité GMH

Le 25 janvier 2024 l’AFDCI (Association Française pour le Droit de la Construction et de l’Immobilier) en partenariat avec JURIDIM et le CERCOL tenait son 38ème colloque annuel consacré à...

GMH uses the Notiplus solution

which revolutionizes the customer relationship.

NotiPlus is the notarial solution that simplifies the management of real estate sales.

Contact us

Our reception points

6, Rue André Chénier
F-92130 ISSY LES MOULINEAUX
Line 12 – Stop at Mairie d’Issy

241, boulevard Saint-Germain
F-75007 Paris
Line 12 – Stop at Assemblée Nationale 

Olivier Herrnberger

Civil law notary & Partner

Olivier joined the office in 1998 and has been a partner since July 2000. 
After spending his first four years at the Orléans Law School, he obtained a DESS in notarial law (1993) and then the Diplôme Supérieur du Notariat (1997) from the University of Paris 1.

He defended his dissertation with Professor Denis Mazeaud on “the particularities of a mass distribution company sale”.

In parallel with his activities as a notary, he has long been involved in teaching, successively as a lecturer in Orléans in property law and company law (1993-1997) then as a lecturer in the Master II in real estate law directed by Professor Perinet-Marquet at Paris II Panthéon Assas (2004-2012). He continues to give regular training courses (INAFON, LEXTENSO and ELEGIA).

Olivier is a regular author of LEXIS NEXIS and LAMY- WOLTER KLUWERS editions on real estate matters. More particularly sensitive to pollution and environmental issues, he is a member of the editorial board of the journals “BULLETIN DE DROIT DE L’ENVIRONNEMENT INDUSTRIEL” and “ENVIRONNEMENT ENERGIE ET INFRASTRUCTURES”, and holds with Professor Mathilde BOUTONNET a chronicle of jurisprudence.

He is a member of the Institut d’Etude Juridiques du Conseil Supérieur du Notariat and of the Scientific Committee of the CRIDON DE PARIS.

He was General Reporter of the 2011 French Notaires’ Congress on the theme of financing and is the President of the Congress to be held in 2021 on the theme of “digital and the law”, the aim of which will be to study the impact of digital technology on the content of the rule of law, in the areas of individual rights, heritage and contracts.

In parallel to his work as a notary, Olivier was Chairman of the Supervisory Board of a credit company and sits on the Board of Directors of the National Chamber of Owners.

He has exercised ordinary functions being elected by his peers as vice-president then president of the Chambre des Notaires des Hauts de Seine (May 2012/May 2015).

Former reserve officer of the National Gendarmerie (EOR 93/11), he is President of the Issy les Moulineaux Committee of the Amis de la gendarmerie.

He is more particularly in charge of the complex real estate sector, development, commercial real estate and local authorities.

François-Xavier Munoz

Civil law notary & Partner

After a Master’s degree in law at the University of Paris V René Descartes and the Diploma of  the Centre Supérieur d’Etude Notariale in 1999, he obtained a DESS in notarial law in 2000 and then the Diplôme Supérieur du Notariat.
He defended a dissertation on “the compensation of construction damages”.

After several years of training in Paris, he joined GMH Notaires in 2004 as an associate and became a partner in June 2010.

He and his team are in charge of real estate transactions and financing for private individuals.

François-Xavier is twice French rugby champion, veteran category, in 2016 and 2018.

Clothilde Greff

Civil law notary & Partner

Clothilde GREFF joined GMH notaires in 2002.
She was appointed as a notary in June 2010. 

After obtaining a DEA in Private Estate Law at the University of PARIS I La Sorbonne in 1998, she obtained a DESS in Notarial Law in 2001 and then the Diplôme Supérieur du Notariat in 2003 from the University of PARIS I.

She wrote a dissertation with Professor Périnet-Marquet on “Le juge des référés et le droit de biens” as part of her DEA and on “Les baux commerciaux dans les ventes en état futur d’achèvement” as part of her DESS.

She co-leads with Me Olivier HERRNBERGER the department of professionals, and more particularly manages the department of local authorities.

From 2010 to 2013, she was a lecturer in the Master II in Real Estate Law directed by Professor Perinet-Marquet at Paris II Panthéon Assas.

She participates with the Paris Notaries’ Chamber in the work of the Association des Notaires des Métropoles Européennes (ANME) and is in charge of relations between the Hauts-de-Seine and Moscow Notaries’ Chambers.

She is co-chair of the “Communities” Commission of the Chamber of Notaries of the Hauts-de-Seine and was a member of the “Companies and Corporations” Commission.

Finally, she carried out an ordinary mission as a member of the Chamber of Notaries of the Hauts-de-Seine from May 2015 to May 2018.

In 2020, Clothilde obtained a Master II in public law at the University of Aix-Marseille.

François Burneau

Civil law notary & Partner

François BURNEAU joined  GMH notaires in 2012. He was appointed as a notary on March 8, 2013.
Before joining GMH notaires, François worked in family law departments as an assistant notary in the OURY-NARBEY-FONTAINE & MARTIN law firm in PARIS 8 then in the POISSON-GROSSE & DUMONT law firm in PARIS 7.

He heads the family property law department of the Office. He has been a notary since 2005 and holds a master’s degree in wealth management obtained from the University of CLERMONT-FERRAND in 2007.

He defended a dissertation on “Inheritance rights in an international context.

François is one of the twenty French civil law notaries holding the Certificate of Specialisation in International Law and chairs the Private International Law Commission of the “Chambre des notaires des Hauts de Seine”

Claire Cailloux

Civil law notary & Partner

Biography coming soon