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Donald S. Waack

Donald S. Waack

T +1 202 263 3165
F +1 202 762 4279
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Donald Waack is a partner in the Financial Services Regulatory & Enforcement practice of the Washington DC office. He counsels globally active financial services firms on their most challenging regulatory, transactional, and enforcement matters.

Don devotes the majority of his practice to advising banks, bank holding companies, and other financial institutions on complex strategic and regulatory matters, including investment authority issues and activities restrictions; regulatory capital; swaps market regulation; affiliate transactions and lending limits; and proprietary trading and private fund restrictions arising under the Volcker Rule. He assists financial services clients with structuring significant investments and provides strategic advice and regulatory support for mergers and acquisitions and other complex transactions. Don also counsels hedge funds, private equity funds, and other firms regarding investments in the commercial banking sector and transactions with banks and other regulated counterparties. In connection with his regulatory counseling practice, Don works frequently with the staffs of the major federal and state bank regulatory agencies. 

Don also advises domestic and non-US financial services firms in connection with sensitive internal investigations and similar matters. He counsels financial services clients on internal regulatory compliance reviews and has represented clients in connection with a broad range of regulatory inquiries and investigations, including federal and state enforcement matters.

Don was recently recognized as a “Rising Star” by IFLR1000 in the area of Financial Services Regulation. He joined Mayer Brown in 2008.

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