Erika Mayshar provides tax advice to business entities and tax-exempt organizations. She serves as counsel to hospitals and health systems, universities, private foundations, and operating charities, as well as private equity firms, investment management firms, and closely held companies doing business with the nonprofit sector.

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  • Many of the nation’s most highly regarded nonprofit hospitals in joint ventures and affiliations with for-profit and nonprofit health care organizations, tax-exempt bond financings, acquisitions, conversions, innovation structures, and Section 501(c)(3) tax exemption matters.
  • Family foundations founded by prominent philanthropists across the country, dealing with complex family office structures, strategic grantmaking, impact investing, and cross-border philanthropy; corporate foundations addressing disaster relief, community building, scientific research, and healthcare.
  • Investment management firms and tax-exempt investors regarding tax-sensitive structuring of offshore investments and unrelated business income tax impact of alternative portfolio investments for pension funds and foundations.

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  • Legal 500 United States, 2018
  • The Best Lawyer, Nonprofit / Charities Law, 2021


  • University of Southern California Tax Institute, planning committee member
  • University of California Irvine School of Law and University of California Irvine School of Business, lecturer
  • American Health Lawyers Association, member

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Stanford Law School, JD, 2005
Pomona College, BA, magna cum laude, 2002


Erika Mayshar

Insights & Events / Media

On the Subject / November 10, 2017

Silicon Valley, California / McDermott Event / November 3, 2017

San Francisco, California / McDermott Event / November 2, 2017

Los Angeles, California / McDermott Event / November 1, 2017