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Andras Kosaras represents domestic and international tax-exempt organizations on a broad range of regulatory, transactional and operational matters, including structuring domestic and international programs, grantmaking, and business ventures. He also represents individuals and corporate donors on charitable giving. In addition, working with the firm's legislative team, Mr. Kosaras monitors and provides advice on legislative and regulatory tax proposals affecting tax-exempt organizations.

He advises exempt organizations on executive compensation, private foundation rules, unrelated business income tax, mergers, joint ventures and the establishment of for-profit subsidiaries, as well as on managing investments and endowments, including mission- and program-related investments. He advises exempt organizations involved in tax and governance controversies, including internal investigations, disputes over charitable gifts and gift restrictions, internal investigations, and examinations by the IRS and state charity regulators.

He advises a broad range of exempt organizations, including public charities, private foundations, medical research organizations, donor advised funds, supporting organizations, community foundations, and fiscal sponsors.

He regularly speaks at programs for tax-exempt organizations.

Prior to joining the firm, Mr. Kosaras was an in-house attorney at the Council on Foundations in Washington, DC, and the director of a multiyear grant project to implement the Council's program on governance and accountability practices for grantmakers. He also spent two years as a research assistant at Harvard University's Hauser Center for Nonprofit Organizations, assisting Marion R. Fremont-Smith in the completion of her book, "Governing Nonprofit Organizations: Federal and State Law and Regulation" (Harvard University Belknap Press 2004).


  • Public charity in establishing international operations, including compliance policies for private and government funding.
  • Private foundation in an internal investigation and governance and management dispute among directors.
  • Public charity in structuring and operating fiscal sponsor programs.
  • Public charity, with an international affiliate, in structuring and operating impact investing programs internationally.
  • Private foundation in an IRS and state attorney general audit of trustee compensation.

  • Donors in connection with US$75 million gift to help fund a public hospital's critical equipment and technology for new acute care and trauma center and to develop a public health campaign.


Keeping Legally Compliant while Embracing Innovation in Grantmaking
Speaker, Exponent Philanthropy Annual Conference
Negotiating Mission-Related Business Contracts between Nonprofits and For-Profits
Speaker, D.C. Bar Association, Exempt Organizations Committee
Legal Ethics for EO Counsel
Speaker, Georgetown Law 39th Annual Representing and Managing Tax-Exempt Organizations
Remote Work – State Impact
Speaker, TEGE Exempt Organizations Council, Annual Conference
Legal Issues When Employees Work Remotely
Speaker, Georgetown Law 38th Annual Representing and Managing Tax-Exempt Organizations (Virtual)


The Legal 500 US
US Taxes: Not-for-Profit (Nonprofit and Tax-Exempt Organizations) (2021)



  • J.D., New England School of Law, 2001, magna cum laude
  • B.A., Philosophy, University of Massachusetts Amherst, 1998, summa cum laude


  • District of Columbia
  • Massachusetts


  • Member, Exempt Organization Committee of the American Bar Association's Tax Section
  • Member, Board of Directors, BBB Wise Giving Alliance
  • Member, Board of Directors, CAF America