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The Justice Action Center Team

Our Team

karen tumlin

Karen Tumlin, Founder

Karen Tumlin is a nationally recognized impact litigator focusing on immigrants’ rights. She successfully litigated numerous cases of national significance, including a challenge to the Trump Administration's effort to end the DACA program and the Muslim Ban, as well as the constitutional challenge to Arizona’s notorious anti-immigrant law, SB 1070. She formerly served as the Director of Legal Strategy and Legal Director for the National Immigration Law Center, where she built a legal department of over 15 staff who developed and led cases of national impact.

"My vision for Justice Action Center is to bring fierce courtroom advocacy to currently unseen problems and to harness the power of the digital landscape to achieve lasting justice for immigrants."

-Karen Tumlin


Esther Sung, Legal Director

Esther is the Legal Director with JAC who has litigated a number of groundbreaking cases, including suits challenging the Trump Administration’s Muslim and Refugee Bans and Arizona’s anti-immigrant SB 1070 law. Before becoming an immigrants’ rights impact litigator, Esther practiced at Munger Tolles & Olson in Los Angeles for six years, where her clients included the Getty Museum, Southern California Edison, and Transocean. She graduated magna cum laude from the University of Texas School of Law and clerked for the Honorable Lee H. Rosenthal on the United States District Court for the Southern District of Texas and the Honorable Allyson K. Duncan on the United States Fourth Circuit Court of Appeals.

Adela de la Torre, Deputy Director

Adela brings more than 15 years of communications and advocacy experience to Justice Action Center. Most recently, she served as a consultant to foundations and nonprofit organizations, advising on communications strategy and researching emergent themes in the integration between mobilization, fundraising, and communications. Prior to that, she was the communications director for the National Immigration Law Center, where she founded and built their communications platforms.

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Jane Bentrott, Counsel

Jane is a counsel with JAC who brings years of complex litigation experience to the JAC team. Before becoming an impact litigator focusing on immigrants’ rights, Jane practiced law at Morrison & Foerster LLP, successfully representing clients in a wide range of commercial and pro bono litigation matters. Jane graduated from Columbia Law School where she served as a managing editor of the Columbia Journal of Transnational Law.

Pilot Partners


Immigrant Defenders

ImmDefenders is a social justice non-profit law firm and the largest deportation defense provider in Southern California.  Its mission is to bring us closer to a world where no immigrant is forced to go to immigration court alone.  JAC and ImmDef have filed a joint lawsuit, Justice Action Center’s first suit, deploying JAC’s federal litigation expertise to address an unmet need for one of ImmDefenders’ detained clients.


United We Dream

United We Dream is the nation’s largest immigrant-youth network, its mission focuses on creating welcoming spaces for young people—regardless of immigration status—to support and empower them to use their voices to lead and win on campaigns.  United We Dream focuses on four key areas: winning protections for immigrants, defending against deportations, education access for immigrants, and justice and liberation for LGBT immigrants. JAC and United We Dream are partnering to address issues making the daily lives of DACA recipients more difficult, including detentions at airports and delays in processing DACA renewals.

Board of Directors

gabriel sandoval

Gabriel Sandoval

andre segura

Andre Segura

lynn tramonte

Lynn Tramonte

Advisory Board

greisa martinez rosas

Greisa Martinez Rosas

andrew pincus

Andrew Pincus

cecillia wang

Cecillia Wang

michael wishnie

Michael Wishnie

don verrilli

Don Verrilli


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