Standing out for its cross-border prowess, Mayer Brown hosts a leading broker-dealer regulatory practice accessed by large foreign investment banks such as Goldman Sachs for advice on a variety of regulatory frameworks within transactions, as well as licensing, risk management, and compliance issues. On the regulatory side, complying with ECOA requirements for consumer credit lenders is a significant area of expertise for the group, as well as Basel endgame proposals and regulatory capital matters. New-York based Steve Kaplan and Steffen Hemmerich, and Washington DC-based Jeffrey Taft, are all key team members, whose familiarity with federal, state and self-regulatory organization rules and regulations is an asset to clients. Hemmerich is key for broker-dealer registrations and transactions, while Kaplan is key for consumer finance. Versatile practitioner Andrew Olmem, managing partner of the firm’s Washington DC office, is key for consumer finance issues, including securities and derivatives trading.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Mayer Brown is our leading advisor for broker-dealer-related topics. They differentiate themselves from competitors by understanding our business, which has an essential cross-border component.'
- 'Steffen Hemmerich is an outstanding lawyer because of his industry-wide knowledge and his ability to work with us to develop solutions that meet our demands.'
- 'Mayer Brown has some of the finest housing finance lawyers in America. When you need answers to the toughest housing finance issues, there is no firm we trust more.'
- 'Krista Cooley is the foremost expert on FHA servicing issues in America.'
Key clients
- Ally Bank
- Blockchain Association
- Canadian Imperial Bank of Commerce
- Charles Schwab
- Huntington National Bank
- SIFMA
- MUFG – First Sentier Investors
- National Bank of Canada
- Santander Bank
- Truist Bank
- US Bank
- Auxilior Capital Partners
- Bayview
- Blackstone
- Block/Square, Inc.
- Doma
- Goldman Sachs
- Greensky
- KKR/Global Atlantic
- Opendoor
Work highlights
Acted for Goldman Sachs as regulatory counsel in its role as underwriter for Chime, which was one of the most anticipated fintech IPOs of 2025.
Acted for Pipe Technologies as regulatory and transaction counsel to in the rollout of a program at scale that seeks to innovate toward a more efficient small business financing ecosystem.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Andrew Olmem; Steve Kaplan; Jeffrey Taft; Steffen Hemmerich
Other key lawyers
Krista Cooley; David Beam