Mrs Roberta Danelon Leonhardt > Machado Meyer Sendacz e Opice Advogados > São Paulo, Brazil > Lawyer Profile

Machado Meyer Sendacz e Opice Advogados
SÃO PAULO, SP, 01451-000

Work Department

Environmental / Crisis management / Agribusiness / Automotive / Chemicals and petrochemicals / Construction / Energy / Mining / Oil and gas / Retail and consumer / Financing and infrastructure projects / Litigation, arbitration and dispute resolution




Head of the Environmental Law practice, Roberta Danelon Leonhardt is a specialist in environmental law, having outstanding performance in the management of complex environmental crises due to her skills for the composition of multiple interests in negotiation processes. Leonhardt’s work embraces the coordination of working teams for the provision of environmental assistance in matters related to the implementation of potential polluting projects and the analysis of environmental liabilities, support to investors and financial institutions for the identification and management of environmental risks, as well as working with environmental agencies and the Department of Public Prosecution. Leonhardt is becoming renowned in the market of Environmental Disputes practice due to her persuasive ability and solid environmental practice background and has experience in assisting clients of a wide range of areas such as infrastructure, logistics, food and beverage, chemicals, real estate, agribusiness, steel, mining, automotive, banking, pharmaceutical and heavy industry in general.


Portuguese and English.


Admitted to the Brazilian Bar (OAB) and member of the International Bar Association (IBA).


Received her LL.B. and post-graduate degree in Environmental Law from Universidade de São Paulo and LL.M. in Public International Law from the London School of Economics and Political Science. Also studied Crisis Management and Business Continuity at Massachusetts Institute of Technology.

Lawyer Rankings

Brazil > Dispute resolution (including White-collar crime)

The ‘very talented‘ dispute resolution team at Machado Meyer Sendacz e Opice Advogados has a ‘great structure‘ and is ‘prepared to assist large companies in a range of proceedings‘. It is also praised for its ‘transparency‘ and ‘strategic view of disputes‘. The team is often retained by well-known companies in high-stakes litigation. A case in point was its counsel to Petrobras regarding an administrative dispute concerning an oil-and-gas concession agreement and an increase in attendant royalties subsequent to the unification of various oilfields; the team was led by Eliane Cristina Carvalho, Gláucia Coelho, Cristiane Romano and energy partner Daniel Szyfman. In internal developments, Eduardo Perazza de Medeiros and Paulo Eduardo Leite Marino were promoted to partner; both are recommended. Environmental law expert Roberta Danelon Leonhardt also receives praise.

Brazil > Environment

The ‘committed‘ and ‘swift‘ environment team at Machado Meyer Sendacz e Opice Advogados is highly recommended for crisis management. It continues defending Samarco in litigation concerning the Bento Rodrigues dam disaster. Another highlight was assisting Coalizão Embalagens, a group of industry associations, with waste take-back matters. Practice head Roberta Danelon Leonhardt is ‘client-focused‘ and Daniela Stump is recognised as a next-generation lawyer.