Litigation Program

As Director of Litigation for the Animal Legal Defense Fund, Carter is focused on helping the organization file and win civil lawsuits that liberate animals. Driven by his belief that animal protection is a critical form of social justice, Carter has dramatically expanded the Litigation Program’s capacity within just a few years. Under Carter’s leadership, the program has quadrupled its number of filings and achieved groundbreaking successes including judgments, settlements and precedent that replaced negligent management at public shelters, ended systematic abuses at factory farms and hunting facilities, rescued wildlife from roadside zoos, improved standing for animal advocates and halted false advertising used to sell animal products.

In addition to his work with the Animal Legal Defense Fund, Carter is the President of, an organization helping animals and children in the most effective way possible by changing the way we think about having kids.

Carter previously served as General Counsel for Compassion Over Killing and as Director of Farm Animal Litigation for the Humane Society of the United States. He began his career as an Honors Program appointee to the U.S. Department of Justice and later served as a legal advisor to the U.S. Department of Homeland Security in the National Security Law Division. He has taught on the faculties or held appointments at University of Oxford, Lewis and Clark Law School, Emory University School of Law, and Loyola University New Orleans, College of Law. He holds a B.A. from Boston College, a J.D., Order of the Coif and with honors, from Emory University, and an LL.M. from New York University where he wrote his thesis—on a deeply theorized right to have children—under Jeremy Waldron. Carter has written a dozen articles, including peer-reviewed pieces, on animal protection and human population ethics.

Carter enjoys the great outdoors, running and surfing in the San Francisco bay area where he lives with his blind, one-eyed cat Mignon.


Chris Berry works on a broad range of animal issues including puppy mills, factory farms, and consumer rights. He helps formulate creative legal theories to help animals and challenges government agencies that are not following the law as in Legal Rights and Duties in Lost Pet Disputes. Chris also works hard to fight abuse on factory farms and protect consumers who want to make humane choices. For example, Chris served on the Cal-Cruz Hatcheries case, applying the animal cruelty code to a chicken hatchery through a consumer protection law. Chris also worked on Glover v. Mahrt, a class-action lawsuit alleging that egg packaging depicting outdoor hens mislead consumers who wanted to buy more humanely produced eggs.

Chris graduated with honors in 2008 from the University of South Dakota, where he majored in political science and minored in psychology. While there, he focused his attention on animal issues and wrote an honors thesis arguing that invasive medical testing on animals violates fundamental bioethics principles. Chris attended law school at the University of Michigan while maintaining his interest in animal rights with a focus on litigation. Chris was involved in student advocacy in Ann Arbor and acquired experiences interning at the public defender’s office in the child abuse and neglect docket, participating in the environmental law clinic, and serving as a law clerk for the Humane Society of the United States, where he worked on the farmed animal litigation team. Chris cares for two sweet lab mixes and watches out for his roommate’s goofy Rottweiler.


Wendy Cromwell conducts legal research, follows up on animal cruelty complaints, interviews witnesses, and, if necessary, hires investigators to support ALDF’s groundbreaking litigation. Wendy also maintains databases and physical files, as well as the team litigation calendar, and prepares FOIA requests and appeals.

With a strong background in criminal investigation–she spent 20 years in law enforcement working as a deputy sheriff, 911- dispatcher, and victim’s advocate–Wendy also holds degrees in criminal justice and paralegal studies. She has volunteered at the Sonoma County Humane Society and is active in Compassionate Living Outreach, North Bay Vegan Events, and the Redwood Association of Paralegals. Wendy was one of the first women to work patrol duties, which helped pave the way for other women in law enforcement. In addition to being a paralegal extraordinaire and a role model for women in criminal justice, Wendy is also a talented vegan baker and a weightlifting champion. She even broke the American and world records for weightlifting in the same age/weight class.

Kelsey Eberly assists ALDF with its cases and projects. She graduated from UCLA Law School in May 2014, where she focused on animal, environmental, and administrative law. While attending law school, Kelsey was the chair of the UCLA Animal Law Society—that school’s student Animal Legal Defense Fund chapter (SALDF). She was also a writing advisor to first year law students in UCLA’s Lawyering Skills clinical program. Prior to this, she earned a graduate certificate in Animal Policy and Advocacy from Humane Society University. In 2006, she received a bachelor’s degree magna cum laude from Middlebury College, with a double major in English and Spanish.

Kelsey is a former clerk for ALDF and before that served as a legal intern with Compassion Over Killing. She has concentrated her academic study on the abuse of factory farmed animals and is interested in the international trade of exotic animals, the free speech rights of animal advocates, and the humane management of urban wildlife. Kelsey enjoys running, vegan cooking, fostering kittens, and observing beautiful underwater creatures while scuba diving.

Matthew Liebman is Chief Legal Counsel in the litigation program and works on all aspects of ALDF’s civil cases. He has litigated cases including ALDF v. Otter, the first lawsuit to successfully invalidate an Ag-Gag law; Bennett v. McDaniel, which rescued a captive bear from a small concrete cage where she had languished for 16 years; and ALDF v. Conyers, which resulted in the rescue of more than 100 dogs from a North Carolina hoarder. Matthew’s writing has appeared in the Animal Law Review, the Journal of Animal Law, the Stanford Environmental Law Journal, and the Animal Legal & Historical Web Center. With Bruce Wagman, Matthew co-authored A Worldview of Animal Law, which examines how the legal systems of different countries govern our interactions with animals.

Before coming to ALDF, Matthew clerked for the Honorable Warren J. Ferguson of the United States Court of Appeals for the Ninth Circuit. Matthew graduated with distinction from Stanford Law School in 2006 and with highest honors from the University of Texas at Austin in 2001 with a degree in philosophy. While a law student at Stanford, Matthew co-founded a chapter of the Student Animal Legal Defense Fund and was an active member of Animal Rights on the Farm, where he worked on campaigns against factory farming and vivisection. He lives with his human companion and their five feline companions Kitty Kitty, Ollie, Emma, Spider, and Niecey.

Justin Marceau is of counsel for the litigation program and works on a variety of civil cases, specializing in constitutional matters. In addition to litigating cases with ALDF, Justin is a tenured law professor at the University of Denver Sturm College of Law.

Before joining ALDF, Justin clerked for Sidney R. Thomas of the United States Court of Appeals for the Ninth Circuit, worked as an associate at a large law firm in San Francisco, and served as an Assistant Federal Public Defender.

Justin graduated with honors from Harvard Law School in 2004 and from Boston College in 2000.

His research interests include habeas corpus, the death penalty, criminal procedure, criminal law, constitutional law, and animal law.


Carney Anne Nasser is ALDF’s in-house captive wildlife and regulatory attorney. She supports the litigation team by providing critical expertise regarding the federal Endangered Species Act, the federal Animal Welfare Act, and creative strategies to ameliorate the exploitation of big cats, elephants, bears, primate, orcas, and other captive exotic and endangered animals. She draws on her professional expertise to also provide in-house counsel on regulatory matters, legislative policy, and trends in animal law. This expertise includes ten years of litigation work in private practice, government, and the nonprofit sector. Prior to joining ALDF, she served four years as litigation counsel for the PETA Foundation’s Captive Animal Law Enforcement department. In this capacity, Carney Anne played a key role in the rescue of Ben the bear—a joint legal initiative of ALDF and PETA–from a North Carolina roadside zoo and in his transfer to the PAWS animal sanctuary, where he now lives out his remaining years.

Prior to coming to ALDF, Carney Anne graduated from U.C. San Diego with a B.A. in political science and holds a J.D. from Tulane University, where she served as editor of The Sports Lawyer’s Journal. She also holds a graduate degree in community advocacy from the George Washington University Graduate School of Political Management. In addition to her work at ALDF, Carney Anne is an adjunct lecturer at Tulane, where she teaches a seminar in animal law. She has served on the board of directors for the Humane Society of Louisiana and is a member of the ABA TIPS Animal Law Committee, the Texas Animal Law Committee, and previously served as the co-chair of the Animal Welfare Committee for the Dallas Association of Young Lawyers.

Carney Anne is a recognized speaker on the national circuit and has served as national and international media spokesperson on a wide range of animal protection issues. She has been interviewed and recognized on outlets including CNN, ABC, CBS, Fox, the Huffington Post, Los Angeles Times, the Associated Press, NPR, and has been quoted in numerous international media outlets. She has been an active animal advocate for more than twenty years and, although a Bay Area native, currently lives in New Orleans with her sons and her dog Ranger.

Jeff Pierce

Jeff Pierce serves as Legislative Counsel for the Animal Legal Defense Fund, collaborating with the organization’s several programs to structure and implement legislative priorities. He joined the Animals Legal Defense Fund in 2013 as a Litigation Fellow, developing and bringing lawsuits under various causes of action including the Endangered Species Act and the Administrative Procedure Act, and continues to maintain a litigation docket in addition to his legislative responsibilities. Jeff earned his J.D. from Stanford Law School (2013) where, as a SALDF (Student Animal Legal Defends Fund) member, he oversaw his chapter’s pro bono efforts and conducted legal research for the nonprofit Compassion Over Killing. Jeff clerked for the Animal Legal Defense Fund while a law student and served as Editor-in-Chief of Stanford’s Journal of Animal Law and Policy. In addition to law, Jeff studied biology at Duke University (2001), where he graduated summa cum laude, and theology at Yale University (2006). As a Fulbright Scholar in Swaziland, southern Africa (2002), Jeff researched the impact of commercial forestry on rural communities and wildlife.

Stefanie Wilson assists ALDF with its cases and projects as a litigation fellow. She graduated summa cum laude from the University of California, Irvine, Law School in 2014. While in law school, she participated in the National Animal Law Moot Court Competition and was founder and president of its Student Animal Legal Defense Fund chapter. Stefanie also earned her Master’s in animals and public policy from Tufts Cummings School of Veterinary Medicine and her B.A. in biological anthropology from Harvard University.

Before joining ALDF, Stefanie clerked for the Honorable Harry T. Edwards of the United States Court of Appeals for the D.C. Circuit. She also has been an extern for a U.S. District Court judge and served as SALDF regional representative for Southern California. She is interested in making connections between animal welfare and other social justice issues, such as environmental protection, food justice, and workers’ rights. Stefanie enjoys vegan cooking, hiking, and volunteering and fostering with animal rescues. She cares for a sweet dog named Deuce and a goofy cat named Remy.

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