Michael Calvert

Graham Iversen focuses his practice on corporate tax matters, including mergers and acquisitions, private equity transactions, joint ventures, partnerships, corporate restructurings, debt and equity finance, derivatives, structured investments, real estate and tax disputes. Graham joined the firm from Slaughter and May in London, where he was a partner in the firm’s London office in their tax department for more than 14 years. He has been a corporate tax attorney for more than 22 years,...

Michael Kazakevich is a partner in Ropes & Gray’s finance group in London, co-head of the firm’s global practice, and co-chair of the firm’s investment banking industry group. Michael’s practice focuses on corporate finance transactions. He has advised issuers and underwriters in connection with high yield debt issues, secured leveraged loans, initial and follow-on public equity offerings, tender offers and acquisition financing commitments.

Deborah Ruff leads Pillsbury’s Arbitration - U.S. & International practice. She has extensive experience in multi-jurisdiction disputes, with a focus on high-value and complex international arbitration in the energy, infrastructure and construction, telecommunications and financial sectors. Deborah conducts international arbitration disputes often over JOAs, the construction of and off-take from refineries and petrochemical plants, as well as rig, energy trading and transport, and c...

Mark's practice covers cross border inward investment, syndicated lending, structured export credit finance, structured trade and commodity finance, debt restructurings and asset finance. Mark is recognized in The Legal 500 UK as "excelling" in structured export credit transactions and is praised for his "commercial and user-friendly approach."Mark advises on ESG financings including hospitals, clean energy and transportation.Mark also advises on financial crime, modern slavery, bribery and c...

Clive Wells is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Clive practices law in London, United Kingdom Best Lawyers has recognized Clive Wells since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Clive Wells is held by other lawyers.

Cason Moore is a lawyer recognized by Best Lawyers in the practice areas of Mergers and Acquisitions Law and Private Equity Law. Cason practices law in London, United Kingdom Best Lawyers has recognized Cason Moore since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Cason Moore is held by other lawyers.

Carolyn Jackson helps clients solve complex cross-border issues involving the regulation of financial institutions and financial products, including derivatives. Carolyn's depth of knowledge and practical approach are shaped by her first-hand experience: she managed the New York trading desk of several investment banks and was formerly the executive director of the International Swaps and Derivatives Association, Inc. Trading firms, banks, asset managers, clearing houses and trading venues re...

Matthew E. Jones is a lawyer recognized by Best Lawyers in the practice area of Construction Law. Matthew E. practices law in London, United Kingdom Best Lawyers has recognized Matthew E. Jones since 2012. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Matthew E. Jones is held by other lawyers.

Peter Castellon is a lawyer recognized by Best Lawyers in the practice area of Capital Markets Law. Peter practices law in London, United Kingdom Best Lawyers has recognized Peter Castellon since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Peter Castellon is held by other lawyers.

David Birchall advises clients on the full range of energy transactions in the mid- and downstream fields, including types of commodity trading matters, conventional, renewables and clean-tech projects, energy and infrastructure projects, regulation and waste, including waste-to-energy schemes. Having practised as an energy corporate, regulatory and projects lawyer since 1993, he also worked from the start of the renewables and physical commodities trading legal market, in the UK, throughout ...