Mark Leeds joins Mayer Brown

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

Mark Leeds joins Mayer Brown

Mark Leeds has become a partner in Mayer Brown’s tax transactions and consulting practice in New York.

fotoflexer-photomarkleeds.jpg

Leeds (pictured left)  advises clients including banks, hedge funds and family offices on the tax aspects of capital markets products and strategies, including over-the-counter derivative transactions, swaps, tax-exempt derivatives and strategies for the efficient use of tax attributes, such as net operating losses, as well as formation and trading matters.

Leeds was formerly a shareholder of Greenberg Traurig. He has also been a managing director and senior tax counsellor with Deutsche Bank in New York, the general counsel of a credit derivative company and the leader of Deloitte’s capital markets tax practice.

more across site & shared bottom lb ros

More from across our site

ITR’s Indirect Tax Forum 2026 showed why harmonisation remains elusive, advisers must raise their game, and ‘everyone’s data is rubbish’
The firm’s board has reportedly asked Kevin Burrowes to continue until 2028 as the KPMG Australia scandal raises expectations of regulatory reform
A former Deloitte partner will lead the firm’s latest geographic expansion; in other news, Baker McKenzie added six tax lawyers to its partnership
The Fair Tax Mark now extends to domestic-only companies with turnover above €1m, with Thai travel operator Tripseed the first to be certified
A technology provider had to be educated on technical requirements by Joseph Ribkoff’s IT team, a tax manager at the company said
But businesses should remain flexible when choosing between internal and external resources to handle added ViDA complexity, ITR’s Indirect Tax forum also heard
Non-compliance from small businesses continues to account for most of the gap, HM Revenue and Customs revealed
The new managing director of R&D tax relief consultancy ForrestBrown tells ITR about his priorities for the business, where he’s focusing his time and what makes tax cool
PwC Australia’s response to its tax leaks scandal could give KPMG a useful case study, but so far there’s little sign of positive lessons learned
Tom Goldstein’s attempt to overturn his tax conviction was shot down; in other news, Deloitte promoted several tax partners in Italy
Gift this article