The main activity of the firm Maisonneuve is based on a relationship of trust between lawyers and their clients. The Firm assists their clients in a permanent and proactive manner, to anticipate issues all along a case, to define a strategy and to prepare them through every step of the proceedings.
Since the creation of the Firm, its founder, Patrick Maisonneuve, always proposed his clients customized counsel and accompaniment in Criminal Law and then Business Criminal Law.
Gathering today a dozen of lawyers in Paris, the Firm remains true to its quality requirements. Its know-how and expertise are often recognized in law firms’ rankings.
The Firm intervened in the defense of political figures (Henri Emmanuelli, Pierre Bérégovoy, Christine Lagarde, etc.), in political and financial cases (ClearStream, Elysée’s phone tapping, Bygmalion, Elysée’s surveys, European Parliament’s assistants’ case, Angolagate, LVMH’s spying case, etc.), in the sport’s field (alleged rigged handball team of Montpellier game, Rapheal Nadal, etc.), health (moral harassment in France telecom case, nosocomial infection at the Sport Clinique case, etc.) and construction industry (Mary Queens footbridge case, etc.).
Founder of the Firm, Patrick Maisonneuve took oath in 1979. For 40 years, he has been defending French and foreign institutions, their leaders and employee, et overall every person during criminal and disciplinary proceedings.
In the begging of his career, he stood out in Criminal Law with numerous cases, especially in criminal courts. With the emergence of Business Criminal Law, he specialized in this area. He defends, for instance, public institutions, international firms and their leaders, political figures or even athletes in emblematic cases.
His expertise in Business Criminal Law is described as “unmissable” in every Law Firm’s rankings.
Former member of the Bar Council, he wrote many works on criminal justice (“secret de palais” published by Robert Laffond, “justice et poltique: le couple infernal” published by Plon).
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Antoine Maisonneuve is specialized in Business Criminal Law. He regularly assists companies as well as private persons in Financial and Accounting Criminal Law. He has a solid experience in Disciplinary and Regulatory Litigation and in Sport Criminal Law. He also deals with General Criminal Law cases. He has been Partner of the firm since 2015.
He often publishes papers in specialized press in those areas (Dalloz-Lexisnexis-Lextenso) and intervenes in Universities and professional organizations.
He co-wrote a book publish by PUF titled “Repenser la responsabilité pénale de l’entreprise” (“Rethink firm’s criminal responsibility”).
He is a member of international organizations et keeps an active relationship with foreign bars.
Academic career
Oath taking in 2011.
Master II – Arbitration and International Trade
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Bérénice de Warren is a Partner of the firm since 2019, after 8 years of practice in a leading Law Firm in Business Law and Business Criminal Law.
She intervenes, for consulting and litigation, in various cases concerning every area of Business Criminal Law, such as Firm’s Criminal Law (corruption), Labor Criminal Law (moral harassment), Public Criminal Law (misappropriation of public funds), Exchange and Disciplinary Law (insider dealing), Press Criminal Law (defamation), etc.
She has been lecturer at Paris II University in business law (Master II and criminal law (bachelor) for many years.
Academic career
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Rémi Lorrain intervenes in various cases of Fiscal Criminal Law (tax fraud, laundering), Corporate Criminal Law (misuse of company assets, swindling), Public Criminal Law (favoritism, illegal taking of interest, etc.), Labor Criminal Law and Press Criminal Law.
He has been elected Secretary of the Conference du Stage of the Paris Bar. He co-wrote a book about criminal proceeding (Nullitator, 300 nullités efficaces en procédure pénale, « Nullitator, 300 effective invalidities in criminal proceedings”) and often publishes papers in specialized press. He also intervenes as lecturer at Universities (Paris I, Paris II, Nancy), Bar schools (Strasbourg, Paris) and Institutes of Political Studies (Paris).
He is also president of the National association of in-house lawyers (ANDJCE).
Academic career
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Mehdy Azeggagh is an associate of the firm since 2019. He took various internships in Criminal Law and Fiscal Law in Law Firms and courts.
He intervenes in Business Criminal Law cases, Disciplinary and Compliance Litigations.
He is a lecturer at Nanterre Paris University in Criminal Law since 2020.
Mehdy Azeggagh works in French, English, and Arabic.
Academic career :
Tanneguy de Bellescize joined the firm Maisonneuve in 2021, after being an associate for three years in a firm specialized in Business Criminal Law and Exchange Litigation. He also worked with investigating judges and in the National Assembly.
He intervenes in Business Criminal Law cases, General Criminal Law cases and Press Law. He also provides emergency criminal defense services.
He has been lecturer at Paris 1 Panthéon-Sorbonne University et gives a seminar in Criminal proceedings for Master II of the Magistère of Business Law.
Tanneguy works in French and English.
Academic careers :
Justine de Gasquet is an associate of the firm since 2021. She took various internships in Criminal Law and Business Criminal Law in French and American Law Firms, and at the “Parquet national financier”.
She intervenes in Business Criminal Law, General Criminal Law, and Exchanges Litigations.
Justine works in French, English, and Spanish.
Academic career :
uentin Rousselot is an associate of the firm since 2022. He took various internships in restructuring, Commercial Litigation, Business Criminal Law and General Criminal Law in French and Anglo-Saxon Law Firms.
He intervenes in Business Criminal Law, General Criminal Law, and Press Law cases.
He also provides emergency criminal defense services.
Quentin works in French and English.
Academic career :
Margaux Dekonink is an associate of the firm since 2022. She took various internship in General Criminal Law and Business Criminal Law in Criminal Law Firms.
She intervenes in General Criminal Law, Labor Criminal Law, and Business Criminal Law cases.
Margaux works in French and English.
Academic career :
Tiphaine Albertini joined the firm Maisonneuve in 2023 after a 2-year association in Business Criminal Law and Civil Law in a French Law Firm.
Previously, she took various internships in Business Criminal Law, General Criminal Law and Civil Litigation in French and Anlo-Saxons Law Firms, and at the Section P20 of Paris’ Parquet.
She intervenes in Business Criminal Law, General Criminal Law, and Press Law cases.
Tiphaine works in French and English.
Academic career :
The Firm intervenes in sensitive cases of white-collar delinquency since more than thirty years. Its expertise spreads out to all proceedings concerning Firms’ Criminal Law, on specifics offences (corruption, insider training, agreements) as well as more general offences (misuses of company assets, swindling, laundering, forgery). Its reputation is based on its defense during proceedings concerning violations of the public services rules: misappropriation of public funds, illegal taking of interest, illegal financing of political parties or election campaigns. The Firm developed a strong competence in money laundering and corruption, offences for which prosecution and repression never ceased to be strengthen amongst the years. It advices corporations which want to identify judicial risks, especially through the implementation of the regulation concerning the fight against corruption and money laundering under the supervision of the French anti-corruption Agency. Its expertise in litigation enriches its recommendations in counselling. Thus, the Firm defends its clients in many cases presenting transnational aspects and handled by the Parquet National Financier.
The Firm advises and assists its clients in proceedings linked to fiscality, which have ben multiplied since the Act n° 2018-898 of October 23rd, 2018, concerning the fight against fraud. It proposes its clients to work in conjunction with Fiscal Law Firms, to provide a full support through every step, administrative and judicial, of the proceeding.
The Firm advises et defends its clients in every matter concerning public health. It intervened in major media affairs making big headlines these last years.
The Firm developed a special expertise in Labor Criminal Law. It intervenes to defend prosecuted or victims of moral harassment, discrimination, undeclared work, obstacle to the functioning of employee institutions, etc. It also advises its clients on the implementation of safety and health standards in the company and on issues related to legal entity’s responsibility and delegation of power in the field of manslaughter and unintentional injuries.
The firm advises and defends listed companies, banking institutions, public accountants, officials, elected individuals, and every private person who are being subject to proceedings delt by Independent Public Authorities – AMF, CSA, HAS – or Independent Administrative Authorities – ARCEP, CNIL, CCFP, HATVP, H3C, H2AR. The firm defends its clients’ interests in disciplinary proceedings, for instance in front of the French National Council of Physicians Board, the French High Judicial Council, the Disciplinary Councils of Sports Federations.
The Firm intervenes in Press Law, in the field of defamation and injure, right to privacy and cybercriminality.
General Criminal Law is the origins of the firm. Its founder, Patrick Maisonneuve, intervened since the beginning of his career in many sensitive cases, in correctional and criminal matters. The firm defends its clients, prosecuted or victims, in ordinary proceedings (offences against individuals) and specific criminal proceedings (Juvenile Criminal Law, terrorism, narcotics…). It accompanies through the all proceeding: complaint or detention, hearing, investigation or inquiry, hearing before the police court, criminal court or assize court, sentence adjustment, post-sentence motions.