Expertise mobilized in service of your challenges
Oppenheimer Conseil relies on a network of high-level experts, organized into sector-based units, to provide precise and rigorous analysis of the most complex situations.
Legal & Tax Sector
For each situation requiring it, Oppenheimer Conseil draws on a network of specialized lawyers and tax experts, each a reference in their field, to respond precisely to the most demanding situations.
Maître Michael Indjeyan-Sicakyuz
Attorney at the Paris Bar
Maître Michael Indjeyan-Sicakyuz is a member of the Paris Bar with over twenty-five years of experience in legal advisory and litigation. He assists a clientele of individuals and businesses across a wide range of legal areas, including civil law, employment law, commercial law, and criminal matters. His practice also covers tenancy disputes and contractual litigation. Well-versed in judicial proceedings, he intervenes rigorously before civil, commercial, and criminal courts, both as claimant and defendant. His approach is based on a precise analysis of legal situations, a controlled litigation strategy, and a constant search for effective solutions, whether judicial or amicable.
Maître Jean-Philippe Morel
Attorney at the Dijon Bar
Maître Jean-Philippe Morel has been a member of the Dijon Bar for over 25 years, with solid experience gained notably at the Paris Bar before founding his own firm in 2004. He advises individuals and businesses across a broad spectrum of law — business law, employment law, criminal law, family law, and civil litigation — with recognized expertise in handling complex and sensitive situations. His approach rests on a dual requirement: a thorough technical command of the law and the ability to make legal issues accessible and understandable for his clients. Appreciated for his attentiveness and clarity, he positions himself as a trusted partner, capable of developing effective strategies tailored to each situation.
Maître Stéphane Berder
Attorney specializing in tax law and corporate law
Stéphane Berder is a lawyer specializing in tax law and corporate law. For over 30 years, he has focused on the full range of legal issues affecting business leaders. His purpose is to relieve them of the burden of legal, tax, and financial complexity, while providing a strategic vision in support of the development and protection of their businesses. In an ever-accelerating world, he offers agile solutions with responsiveness, availability, and unwavering commitment.
Maître Alexandra Bessan
Attorney at the Paris Bar
Maître Alexandra Bessan is a member of the Paris Bar. She has successfully practiced for several years in the real estate departments of some of the most renowned French and American law firms. With recognized expertise in both advisory and litigation work, she assists numerous companies — including property managers, rental management firms, property administrators, developers, and project owners — as well as individuals, property owners, family property companies, property dealers, and tenants, providing effective legal and judicial assistance, including in other areas of law and in the most sensitive cases.
Maître Claire Daubrey
Attorney at the Paris Bar
Maître Claire Daubrey is a member of the Paris Bar, advising and representing individuals and businesses in litigation. She assists her clients across several areas of law, notably employment law for contracts, dismissals, and labor tribunal proceedings, commercial and business law, banking law and financial disputes, as well as construction law and technical litigation. Experienced in judicial proceedings, she intervenes both upstream to secure legal situations and in defense before the courts, with a pragmatic and results-oriented approach.
Maître Julien Ayoun
Attorney in business law and real estate law
Maître Julien Ayoun's firm advises and represents clients in real estate law and assists notably in judicial expert proceedings in real estate matters. Real estate expertise covers disputes related to buildings and real properties. It may be used within the framework of judicial proceedings — when a court has been previously seized to appoint a judicial expert — to evaluate the value of a real property, to determine the causes of damage, or to resolve disputes related to real estate law. This also applies in matters of latent defects.
Maître Olivier Le Mailloux
Attorney at the Marseille Bar
After teaching at the Faculty of Law of Aix-en-Provence, Olivier Le Mailloux joined the Marseille Bar in 2012. First Secretary of the Conference, he is currently a Member of the Bar Council of Marseille. His areas of practice are primarily focused on criminal law, the defense of fundamental freedoms, and public law. He is also a member of the emergency criminal defense list and Vice-Chairman of the Human Rights Committee of the Marseille Bar.
Maître Béatrice Dubreuil
Attorney at the Court
Holder of a postgraduate degree in intellectual property law (Paris II), Béatrice Dubreuil advises a clientele of French and international private companies, as well as individuals, particularly in press law, trademark law, designs and models, literary and artistic property law, cinema law, broadcasting law, and IT law. She has also developed expertise in criminal law, employment law, competition law, and distribution law within leading French law firms.
Bruce Lewinski
Chartered Accountant and Statutory Auditor
A qualified chartered accountant and statutory auditor, Bruce began his career at Audit & Finance (now In Extenso International), specializing in managing French subsidiaries of foreign groups, notably American and Japanese. He then consolidated his experience at the SME division of Salustro Reydel (now KPMG). In 2002, he joined the ECG group as a partner, creating and developing the Paris office through several acquisitions. In 2011, he founded LA2C, a chartered accounting firm tailored to the specific needs of owner-managers of SMEs. In 2017, he obtained the business valuation certificate issued by the ACCA (Association of Chartered Certified Accountants). A professional in both numbers and law, he works alongside our teams to help you succeed.
Health Sector
Oppenheimer Conseil calls on leading medical professors to provide expert insight into mental health issues in the complex situations it supports.
Pr Christophe Lançon
Professor of Universities – Hospital Practitioner in Psychiatry, CHU Sainte-Marguerite, Marseille
Pr Christophe Lançon leads major university hospital structures in psychiatry and addictology at CHU Sainte-Marguerite in Marseille. A leading figure in contemporary psychiatry, he combines recognized clinical expertise, high-level scientific rigor, and constant involvement in the major orientations of mental health. Author of an abundant scientific body of work, his approach is distinguished by a rigorous, innovative, and deeply human vision, placing quality of life and patient singularity at the heart of modern psychiatry. He is co-author with Rodolphe Oppenheimer of a book on virtual reality published by Eyrolles.
Pr Bruno Millet
Professor of Universities – Hospital Practitioner, Psychiatry and Clinical Research
Pr Bruno Millet and his team are strongly involved in clinical research and the contribution of digital tools to the management of depression. As coordinating investigator of a national study tracking depressive symptoms via smartphone, he is a recognized specialist in anxiety disorders and obsessive-compulsive disorder (OCD). His integrative approach combines clinical practice, neuroscience, and cognitive-behavioral therapies, grounded in a deep understanding of the neurobiological mechanisms of psychiatric pathologies while maintaining constant attention to the psychic and subjective dimension of patients.
Dr Mireille Rea
General Medicine – Acupuncture – Integrative Medicine
Doctor of Medicine, graduated in 1979, Dr Mireille Rea embodies a demanding and refined vision of medicine, serving a clientele in search of excellence and personalized attention. With over forty years of private practice, she has developed a singular expertise, enriched by training in general medicine, acupuncture, and aeronautical medicine. Her approach, both rigorous and sensitive, is grounded in a holistic understanding of the human being, where the body and emotional balance are inseparable. She has also practiced in a hospital setting, notably at the pain management centre of Hôpital Beaujon, where she deepened her expertise in chronic pain and functional disorders, integrating acupuncture into a demanding therapeutic approach. A former deputy mayor for health in the city of Clichy-la-Garenne, she contributed to the development of ambitious public health policies. She has also served as a member of the Council of the Ordre des Médecins of Hauts-de-Seine and Secretary General of the Regional Council of the Ordre des Médecins of Île-de-France. Today still in practice, Dr Mireille Rea offers personalized medicine founded on attentiveness, precision, and discretion.