Marcia Tavares Maack is the Global Director of Pro Bono for Mayer Brown, and is responsible for managing the firm’s pro bono program. Marcia acts as a liaison to the legal services and nonprofit community, develops and selects pro bono opportunities, and ensures a broad range of participation in the firm’s pro bono activities. She also assists and supervises the firm’s attorneys with their pro bono cases, and spearheads the firms pro bono partnerships with corporate clients.

Marcia's pro bono work is concentrated in the areas of international human rights, asylum, and refugee matters. In addition to numerous other projects, she developed and implemented the firm’s partnership with The List Project to Resettle Iraqi Allies, an organization that helps Iraqi refugees whose lives are at risk because of their affiliation with the US Government’s military and reconstruction effort in Iraq. Mayer Brown was honored with a 2008 National Law Journal Pro Bono Award for its work with The List Project.

Marcia is a member of the Committee of the Cyrus R. Vance Center for International Justice and the board of directors of the Washington Council of Lawyers. From 2009 to 2015, she sat on the Pro Bono and Legal Services Committee of the Association of the Bar of the City of New York. She also is a member of the Association of Pro Bono Counsel. Marcia has been a speaker at public interest and pro bono conferences in Brazil, Chile, Colombia, Costa Rica and Peru, in addition to the Pro Bono Institute annual conference and the ABA Equal Justice Conference. She is fluent in Portuguese and conversant in Spanish.

Before becoming the Director of Pro Bono Activities, Marcia served as the firm’s Assistant Director of Pro Bono Activities, a position she held from 2005 to 2015. Prior to that, Marcia was a lawyer in Mayer Brown’s Litigation & Dispute Resolution practice.

Spoken Languages

  • English
  • Portuguese
  • Spanish


Brooklyn Law School, JD, cum laude

Cornell University, BA


  • District of Columbia
  • New York


  • Board Member, Washington Council of Lawyers, 2014-Present
  • Committee Member, Cyrus R. Vance Center for International Justice, 2012-Present 
  • Member, Pro Bono and Legal Services Committee, Association of the Bar of the City of New York, 2009-2015
  • Member, Association of Pro Bono Counsel (APBCo), 2006-Present