Carrie Garber Siegrist is an associate in Goodwin’s Tax-Exempt Organizations practice. She counsels tax-exempt organizations on a full range of tax, corporate, and transactional matters. Ms. Garber Siegrist serves domestic and international exempt organizations including public charities, private and company foundations, higher education institutions, trade and professional associations, healthcare systems, and advocacy organizations. She advises tax-exempt organizations on formation and tax-exemption applications, governance structures and board matters, tax-exemption compliance, unrelated business income liability, structuring affiliations and subsidiaries including social enterprises, board of directors and membership matters, lobbying and issue advocacy campaigns, political campaign activities, domestic and international grantmaking, and major corporate transactions.

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Professional Experience

Prior to joining Goodwin, Ms. Garber Siegrist was a senior manager with KPMG LLP, Washington National Tax, Exempt Organizations group where she served tax-exempt organizations. Prior to KPMG, she was an associate in the Nonprofit Organizations practice at Faegre Drinker Biddle & Reath LLP. There, she advised nonprofit tax-exempt clients on a full range of tax, corporate, and transactional matters in addition to serving clients as external general counsel. Ms. Garber Siegrist also worked with the Lex Mundi Pro Bono Foundation, Public International Law & Policy Group, and co-founded a tax-exempt nonprofit organization to provide educational scholarships. Prior to legal practice, Ms. Garber Siegrist was a 5th grade teacher in The Bronx with Teach For America.

Professional Activities

Ms. Garber Siegrist is a member of the District of Columbia and American Bar Associations. She is the Chair of the D.C. Bar’s Tax-Exempt Organizations Committee. She previously served as the Vice-Chair of the American Bar Association’s Nonprofit Organizations Committee Trade and Professional Association Subcommittee. Ms. Garber Siegrist is also a member of the American Society of Association Executives (ASAE).  

Ms. Garber Siegrist is an Adjunct Associate Professor of Law with American University Washington College of Law where she teaches nonprofit law courses. 


Ms. Garber Siegrist was recognized as a Super Lawyer "Rising Star” in 2020 for nonprofit organizations law. She has also been recognized as a high honors recipient on the Capital Pro Bono Honor Roll (2018 – 2020) for her pro bono work.

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American University
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Bates College
Bank Street College of Education



New Jersey
Washington, D.C.


U.S. Tax Court
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