Mauro is specialist in M&A and Private Equity operations, representing both national and foreign companies, and Private Equity funds in their investments and operations in Brazil. Leschziner also provides routine legal assistance to his clients in drafting high complexity contracts, as well as in their corporate affairs. A large part of his work involves the assistance in the structuring, negotiation and formalization of M&A and Private Equity operations, as well as the legal support to international investors initiating activities in Brazil. Leschziner has previous experience in providing legal assistance to clients of several areas of knowledge, such as education, automotive, retail, chemical, pharmaceutical, banking, food and beverage, electronic commerce, electronics, paper and cellulose, among others.


Brazilian Bar Association (OAB)
New York Bar Association
International Bar Association (IBA)

Recent acknowledgments

Ranked by Chambers Global, edition 2021, in Corporate and M&A.

Recommended by The Legal 500, 2021 edition, in Corporate and M&A.

Ranked among the most admired lawyers by Análise Advocacia, 2020 edition, in the Aeronautics sector.

Recognized by Latin Lawyer National, 2020 edition, in Corporate and M&A.

Ranked by Chambers Latin America, edition 2016, 2017, 2018, 2019, 2020 and 2021, in Corporate and M&A.

Ranked by the Who’s Who Legal 2018, in M&A.

Classified among the most admired attorneys by Análise Advocacia, 2017 edition, in Financial Operations, Aeronautics, Pulp and Paper.

Classified among the M&A by Latin Lawyer 250, 2018 edition

Classified as leading lawyer by Legal 500, 2017 edition, in “Corporate and M&A”.

Recognized as notable practitioner by the guide IFLR1000, 2018 edition.


Pontifícia Universidade Católica, Brazil (Bachelor of Laws, 1995).
Cornell University – Law School, Ithaca, NY, US (Master’s degree in Corporate & Securities Laws, 1997).

Office experience abroad

Skadden firm, Arps, NY, US (1998 - 2001)

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