Obtained summary judgment for the plaintiff in a breach-of-contract lawsuit against a developer that reneged on an agreement to donate funds to a nonprofit organization.

Obtained a nation‑wide injunction against a Department of Homeland Security regulation that would have turned Social Security Administration “no‑match” letters into an immigration enforcement tool without authorization from Congress.

Preserved the availability of a remedy under 42 U.S.C. 1983 in cases seeking enforcement of federal statutory rights.

Won a $33.8 million class-action judgment against the University of California for improperly charging fee increases to tens of thousands of undergraduate, graduate, and professional students, and obtained a preliminary injunction prohibiting the University from charging professional students an additional $15 million in fees.

Won more than $48 million in a class action against the University of California for improperly charging fee increases to almost 3,000 professional students.

Obtained an $11 million settlement in a human trafficking case on behalf of young Indian women who were unlawfully brought into the United States and forced to provide sex and free labor.

Obtained an injunction to block the implementation of a California statute that would have severely reduced the eligibility of elderly and disabled Californians for in‑home support services that enable them to remain in their own homes.

Obtained a $13.2 million settlement of a False Claims Act case and two related wrongful termination cases on behalf of a husband and wife who were terminated after disclosing extensive fraud committed by their government contractor employer.

Overturned a long-standing Sixth Circuit rule capping the number of compensable hours incurred in public interest attorneys’ fees litigation to three percent of the hours incurred in litigating the underlying case.

Reinstated a statutory requirement that the California Highway Patrol must collect racial profiling data, despite gubernatorial funding veto.

Overturned a regulation prohibiting the provision of federally‑funded legal services to a nationwide class of several million aliens who had been legalized through the amnesty process.

Obtained the right to apply for legalization under the Immigration Reform and Control Act for hundreds of thousands of undocumented aliens who were prevented from applying because of unlawful federal regulations; and negotiated temporary work authorization for approximately three million aliens potentially eligible for legalization under the Act.

Obtained a Ninth Circuit reversal of a Board of Immigration Appeals decision ordering the deportation of an immigrant family who had lived in the United States for more than ten years.

Obtained a decision prohibiting the federal government and employers from using non‑immigrant business (B‑1) visas to circumvent the requirement that temporary, non‑immigrant, foreign workers not undercut the prevailing wage.

Obtained a California Supreme Court death penalty reversal on the direct appeal of a capital case.

Obtained a Ninth Circuit habeas corpus remand of a former death penalty defendant’s murder conviction due to the prosecutor’s failure to disclose potentially exculpatory evidence, and obtained reversal of the conviction after an evidentiary hearing in the federal District Court, resulting in the client’s freedom after 27 years in prison.

Won a $78.5 million settlement in a False Claims Act case against a for‑profit university that allegedly defrauded the government by falsely certifying its compliance with the Higher Education Act’s prohibition against paying commissions to recruiters of new students, which was the second‑largest settlement ever of a False Claims Act case in which the U.S. Government declined to intervene.

Obtained an order on reconsideration, and then successfully defended it on appeal, holding that the four-year limitations period of California’s Unfair Competition Law applies to conduct that violates the federal Interstate Land Sales Transfer Act, despite the federal statute’s shorter limitations period; resulting in a $130 million judgment for plaintiffs.

Successful defense of lawsuits filed against the city of Richmond, California, alleging that it would be illegal for the city to exercise eminent domain authority to condemn residential mortgage loans.

Obtained a restraining order, a preliminary injunction, and a permanent injunction, which was subsequently affirmed on appeal, against enforcement of a state statute that would have permitted incarceration of non‑violent drug offenders contrary to California Proposition 36, which mandated probation and drug treatment.

Obtained the rescission of a health maintenance organization’s cost‑cutting policy requiring staff psychiatrists to prescribe psychotropic medications for patients they have not examined.

Obtained a writ of mandate and a permanent injunction under the California Charter Schools Act prohibiting a school board from converting an existing public high school into a charter school without the approval of a majority of the school’s teachers and requiring the school district to open a new non‑charter public high school upon a showing of community support.

Required Louisiana and California to pay federal court civil rights attorney’s fee awards, despite the refusal of state legislatures to appropriate the necessary funds.