Our regulatory practice offers authoritative, forward-looking counsel that assists clients in proactively managing risk, securing critical approvals, and resolving high-stakes enforcement actions before state and federal agencies.

HFK combines deep, sector-specific insight with extensive experience at the intersection of law, policy, and business.

This empowers us to provide the strategic foresight needed to transform regulatory challenges into predictable, compliant, and sustainable market advantages in an increasingly complex and heavily scrutinized global marketplace.

We help clients navigate the intricate web of government compliance and shifting administrative rules essential to their corporate survival and growth.

HFK Law is well positioned to service its clients before federal regulatory bodies, whether the concern is securities, digital assets, or regulatory investigations.

Mike Halloran is the former Counselor to the Chairman and Deputy Chief of Staff of the Securities and Exchange Commission and, as a former General Counsel of Bank of America, has extensive financial institution and securities regulatory experience.

Linda Lerner in New York is a respected authority on regulatory matters related to broker-dealers, investment advisers, finders, electronic trading, FinTech and digital assets.

Bill Green is a former Delaware Deputy Attorney General with nearly a decade of experience in securities enforcement, regulatory investigations, and administrative hearings before regulatory agencies.

Jeff Greilsheimer has represented the Big Four accounting firms in SEC enforcement matters.

Linda, Bill, Mike, Jeff and Tim form our tour-de-force securities law team on structuring securities activities to comply with the law, investigatory and enforcement matters, and working with regulators and legislators to clarify or modify laws and regulations to better address capital formation needs while assuring investor protection.

Regulatory Practice

Michael J. Halloran

Partner

Mike Halloran is a founding partner and a nationally-recognized authority on corporate and securities law.

Mobile: (415) 307-4124
Office: (302) 257-2011, ext. 103
Direct: Jackson (307) 222-6677
Direct: Silicon Valley (650) 290-4142

Linda Lerner

Partner

Linda Lerner is widely recognized for her deep expertise in federal and state regulation of broker-dealers, finders, electronic trading platforms, and tokenized securities. An innovative thinker, she employs creative strategies and long-standing experience with regulators to obtain regulatory approval for cutting edge products and services.

Office: (302) 257-2011, ext. 111
Mobile: (914) 588-5678

William E. Green, Jr.

Partner

Bill Green spent a decade representing Delaware in its Fraud and Consumer Protection Division. At HFK, he concentrates his practice in complex and commercial litigation and corporate counseling. ​

Office: (302) 257-2011, ext. 107
Direct: (302) 268-6875
Mobile: (302) 545-5498

Jeffrey M. Greilsheimer

Partner

Jeff focuses on complex corporate and commercial matters including litigation and arbitration, cross-border disputes, domestic and international insolvency, accounting malpractice, corporate governance disputes, securities litigation and real estate matters in New York state and federal courts.

Office: (302) 257-2011, ext. 110
Direct: (646) 825-2390
Mobile: (917) 743-7019

Timothy S. Spangler III

Associate

Tim advises clients on regulatory compliance and corporate governance matters, including those involving contract disputes and fiduciary duty claims.

Office: (302) 257-2011, ext. 115
Direct: (302) 342-3630

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