Sidley Austin LLP‘s team is well-equipped to assist its portfolio of clients, which features reputable names in financial services, in a breadth of complex and high-value cases. From Washington DC, Joel Feinberg and David Teitelbaum oversee the team, alongside Lilya Tessler, who acts from the firm’s Dallas office. Feinberg’s areas of specialism include assisting clients in business transformation, such as assisting traditional payments and credit card company clients in incorporating fintech, open banking, and blockchain aspects into their respective businesses. Teitelbaum has expertise in assisting financial services clients in complex transactional contexts. Tessler has experience representing clients in blockchain and crypto asset disputes, in assisting with regulatory issues, and in advising tech companies on NFTs, blockchain token offerings, and DeFi matters. In Washington DC, Andrew Blake has noteworthy capabilities assisting with regulatory, compliance, and enforcement matters.
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Work highlights

Representing the client in its 2.65 billion acquisition of global threat intelligence company Recorded Future, which uses AI to analyze and identify potential cybersecurity threats to help protect people and businesses, which is expected to close by Q1 2025.
Advised the client in a strategic transaction in $675 million digital asset treasury company with Avalanche Treasury Co. and Mountain Lake Acquisition Corp.
Represented the client in a collaborative initiative between the Goldman Sachs Group, Inc. and The Bank of New York Mellon Corporation by which BNY will employ blockchain tech developed by Goldman Sachs to maintain a record of customers’ ownership of select Money Market Funds in a significant step towards enhancing the utility and transferability of existing MMF shares.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

David Teitelbaum
David Teitelbaum
Practice head

Joel Feinberg; David Teitelbaum; Lilya Tessler

Other key lawyers

Kate Lashley; Andrew Blake