Firm Profile > Mannheimer, Perez e Lyra Advogados > Rio de Janeiro , Brazil

Mannheimer, Perez e Lyra Advogados
4º ANDAR CENTRO – 20031-005

Dispute resolution (including White-collar crime) Tier 1

At the forefront of the dispute-resolution market in Brazil, what is now Mannheimer, Perez e Lyra Advogados acts for clients in high-stakes litigation and arbitration proceedings. Former partners José Antonio Fichtner and Vivianne Fichtner left to focus on academic projects and take up the position of public attorney of Rio de Janeiro, respectively, leading to a firm name change. Notwithstanding this significant development, the firm continues to handle a range of complex matters, including infrastructure, oil and gas, commercial and corporate disputes. In a R$10bn lawsuit, Sergio Mannheimer and Tomaz Lyra successfully represented Vale, bringing to a close the long-running dispute filed by the Brazilian government involving a railway project. Marcela Levy has vast experience in arbitration and cross-border matters. Fernanda Aviz and associate Maria Marinho are also key contacts.

Mannheimer, Perez e Lyra Advogados acts, mainly, in the prevention and resolution of significant disputes, before State Courts and through arbitration, both international and domestic, with success in the most notable corporate disputes in the country. The firm also provides legal consulting services, with the intent of offering its clients the best solutions in the performance of its activities. With offices located in the two major cities in Brazil, Rio de Janeiro and São Paulo, and correspondents in other cities, Mannheimer, Perez e Lyra Advogados acts nationwide and maintains partnerships with the most esteemed foreign law firms.

The firm counts upon a team of qualified professionals with vast experience in highly complex litigation. Many of its members have master’s and doctoral degrees in law from the most respected universities in Brazil, the United States and Europe, in addition to being law professors and authors of books and articles published in specialised journals, thus providing a differentiated and customised service of the highest quality to its clients. Each case is conducted in a unique way with direct dedication of partners of the firm, in order to deliver to the client a safe, effective and agile legal solution, adapted to its specific needs and with the highest standard of ethics, quality and excellence.

Arbitration & Mediation:

Mannheimer, Perez e Lyra Advogados has broad experience in mediation and arbitration, both national and international, before the most prestigious Brazilian and foreign arbitral institutions, such as the International Chamber of Commerce (ICC), the London Court of International Arbitration (LCIA), the Brazilian Centre of Mediation and Arbitration (CBMA), the Centre for Arbitration and Mediation of the Brazil-Canada Chamber of Commerce (CAM-CCBC), the FGV Chamber of Mediation and Arbitration and Chamber of Conciliation, the Mediation and Arbitration Chamber of São Paulo (CIESP/FIESP), the Market Arbitration Chamber (CAM), among others. It also acts in ad hoc arbitrations under the rules, e.g., of the United Nations Commission on International Trade
Law – UNCITRAL. The firm is recognised for acting in some of the most complex arbitrations in the country, in which the results obtained are the outcome of a strategy defined in a meticulous manner by professionals with profound legal knowledge and far-reaching experience in the area.

Mannheimer, Perez e Lyra Advogados has ample expertise in the recognition of foreign arbitral awards before the Superior Court of Justice (STJ), in addition
to assisting its clients in the negotiation and drafting of arbitration agreements. Lawyers of the firm are also listed as arbitrators before reputable national and international arbitral institutions. The excellence of its professionals in the area is recognised by legal publications such as The Legal 500 and Chambers & Partners.


Mannheimer, Perez e Lyra Advogados occupies a prominent position in the litigation practice area due to the solid professional experience of its members in complex and strategic disputes involving the most diverse areas of the Law, with emphasis on Civil, Commercial, Corporate, Administrative, Constitutional, Tax, International, Insurance, Bankruptcy and Judicial Reorganisation.

The firm’s activities in the litigation sphere involve the representation of its clients, both domestic and foreign, before different Courts in the country, both at the state and federal levels, in judicial proceedings in the first and second levels of jurisdiction, and before higher courts.

Consulting Services in Corporate & Tax Law:

Mannheimer, Perez e Lyra Advogados counts on a team specialised in corporate law and M&A and provides consulting and support in private equity deals, mergers and acquisitions, from the strategy definition to the negotiation and structuring of the deal, conducting legal due diligences and assisting in the drafting of documents for the operation.

The firm also acts in support of the clients’ housekeeping routine activities and obligations, such as alteration of articles of incorporation, corporate restructuring, constitution and dissolution of companies, representation in shareholders meetings, drafting the relevant papers and conducting the filing and updating of registered data before the Federal Revenue Service, the Central Bank, Boards of Trade and the Brazilian Securities Exchange Commission (CVM).

Insurance & Reinsurance:

Mannheimer, Perez e Lyra has vast experience in assisting Brazilian and international insurers, reinsurers and insured companies in the adjustment of complex claims. It has a significant role in preventing litigation by drafting and revising contracts, providing advice to clients on coverage issues and other legal matters involving insurance and representing insurers, reinsurers and insured companies in administrative proceedings of regulatory nature. The firm has been involved in some of the largest and most complex judicial disputes and arbitrations pertaining to insurance and reinsurance

Department Name Email Telephone
Arbitration and Litigation Sergio Mannheimer (55) (21) 2215-1733
Consulting in Corporate and Tax Law Pedro Perez (55) (21) 2215-1733
Arbitration and Litigation Tomaz Lyra (55) (11) 3541-3306
Arbitration and Litigation Karina Stern de Siqueira (55) (21) 2215-1733
Arbitration and Litigation Marcela Levy (55) (11) 3541-3306
Arbitration and Litigation Marcelo Dickstein (55) (21) 3541-3306
Arbitration and Litigation Fernanda Aviz (55) (21) 2215-1733
Arbitration and Litigation Ricardo Almeida (55) (11) 3541-3306
Photo Name Position Profile
Mrs Fernanda Aviz  photo Mrs Fernanda Aviz
Mr Marcelo Dickstein  photo Mr Marcelo Dickstein
Mr Sergio Mannheimer photo Mr Sergio Mannheimer
Mr Pedro Henrique Perez  photo Mr Pedro Henrique Perez
Mrs Karina Stern de Siqueira  photo Mrs Karina Stern de Siqueira
Lawyers : 23
IBA (International Bar Association)
Contacts : 11