Mayer Brown bulks up partnership

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Mayer Brown bulks up partnership

International firm Mayer Brown has announced its latest round of partnership promotions.

This intake represents the firm’s biggest partnership expansion since 2012, with 27 lawyers being promoted. Four tax lawyers have made the step up; two from the tax controversy practice and two from the tax transactions and consulting practice. The promotions will take effect from January 2016.

John Cise and Jonathan Hunt are the tax controversy lawyers being promoted. Both men are based in the firm’s Chicago office.

Since joining the firm in 2008, Cise’s practice has focused on tax disputes and transfer pricing matters. He has represented taxpayers at all levels of federal tax controversy.

Hunt specialises in tax litigation relating to transfer pricing matters, including audit, administrative appeals, and cross-border transfer pricing of tangible and intangible property.

Steven Garden and Charles-Albert Helleputte will become partners in the tax transactions and consulting practice. Garden is also based in Chicago, while Helleputte works out of the Brussels office.  

Garden advises on M&A tax issues, disposition of businesses and international tax planning, with a focus on international corporate structuring, offshore insurance, and cross-border transactions.

Helleputte joined Mayer Brown in 2007 as counsel and focuses his practice on the corporate and tax aspects of restructuring transactions and structured finance. With experience in tax litigation, indirect taxes and tax policy. 

more across site & shared bottom lb ros

More from across our site

Governments are rewriting tax policy for the AI era, deploying digital taxes, tailored incentives and algorithmic enforcement that redefine where value is created
Wingrove will succeed Bill Thomas, who has served in the role since 2017; in other news, Andersen unveiled a sharp increase in revenues for 2025
Partners are divided on Italy vs PDM D’s analytical depth, evidentiary standards, and what the judgment signals for future intra-group financing cases
As GCCs increasingly become strategic hubs, multinationals face heightened risks around permanent establishment and place of effective management
While all options presented ‘drawbacks’, European Commission tax leader Wopke Hoekstra said the controversial US carve-out deal has ‘many benefits’
From tech preparations to competitiveness concerns, Tax Systems’ Russell Gammon addresses the most pressing client considerations arising from the SbS deal
Despite estimates that the US/OECD agreement will cost countries billions, the Fair Tax Foundation’s Paul Monaghan believes the deal is a ‘necessary evil’
The firm’s eye-catching UK launch is a major statement of intent, but it will face stern opposition in its quest to be the top global tax player
The postponement came after industry representatives flagged implementation issues with the registration regime; in other news, firms made key tax partner additions
Despite the increased yield, the time taken to resolve enquiries was at a six-year high, new HMRC statistics have revealed
Gift this article