About

Ann Catherine Wallis is an attorney with Sidley Austin LLP in Chicago, where she focuses her practice on commercial, advertising, and entertainment matters. With 18 years of experience, she brings a seasoned perspective to helping clients navigate complex business and legal issues that arise in fast-moving industries. Based in Chicago, Ann works with clients seeking practical, strategic counsel tailored to their specific goals and business needs. Her practice reflects a thoughtful understanding of the legal and commercial considerations that shape today’s marketplace. In the commercial context, Ann assists clients with matters that require careful attention to risk, negotiation, and contract structure. In advertising and entertainment, she advises on issues that demand both legal precision and an appreciation for the creative and commercial realities behind the work. Her approach is grounded in clear communication, responsiveness, and a commitment to helping clients move forward with confidence. Ann is known for providing disciplined, solution-oriented guidance that aligns legal strategy with broader business objectives. She works to anticipate challenges, simplify complex issues, and deliver advice that is both practical and dependable. Clients value her professional approach and her dedication to protecting their interests while supporting long-term success.

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