Erika Mayshar - McDermott Will & Emery


Erika Mayshar advises hospitals and health systems, private foundations, and other tax-exempt organizations facing complex legal and tax issues.  She works closely with nonprofit leaders and philanthropists to accomplish major corporate and charitable transactions, engage in sophisticated tax planning, and maximize philanthropic impact.  She also advises private equity firms, investment management firms, and closely held companies engaging in innovative business relationships with the nonprofit sector, managing tax-exempt investments or expanding corporate giving.

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  • Nonprofit hospitals and health systems in joint ventures and affiliations with for-profit and nonprofit healthcare 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, venture philanthropy, impact investing, and succession planning
  • Corporate foundations developing successful models for corporate philanthropy, including COVID-19 and disaster relief efforts, employee assistance funds, research grant programs, and corporate social responsibility initiatives

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  • The Best Lawyer, Nonprofit / Charities Law, 2021
  • The Best Lawyer, Health Care Law, 2022 and 2023
  • Legal 500 United States, 2018


  • University of California Irvine School of Law and University of California Irvine School of Business, lecturer
  • University of Southern California Tax Institute, past planning committee member
  • American Health Lawyers Association, member
  • MedTech Color, pro bono counsel


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