Allyson Ho is a partner in the Dallas office of Gibson, Dunn & Crutcher, where she leads the firm’s Appellate and Constitutional Law practice group in Texas.
Mrs. Ho is widely regarded as one of the nation’s most respected appellate litigators. In the Chambers ranking of top appellate lawyers nationwide, she is the highest ranked appellate lawyer from Texas in 2015, 2016, 2017, and 2018, as well as one of the top appellate lawyers in America. She has argued and won more business cases before the U.S. Supreme Court than any Texas lawyer.
Mrs. Ho has argued multiple times before the U.S. Supreme Court. National Law Journal called her a “Veteran SCOTUS Advocate” in the “upper echelons of Supreme Court practice.” Law360 named her a “Supreme Court Star” and “one of the nation’s preeminent appellate lawyers.” EmpiricalSCOTUS.com ranked her among “the most successful attorneys that currently practice before the Court.”
She first attracted attention as a Supreme Court litigator when she argued two Supreme Court cases in 21 days during October Term 2014. Her win in M&G Polymers USA LLC v. Tackett was a “significant ruling for employers across the U.S.” (Law360, Aug. 10, 2016), overturning longstanding circuit precedent and “pav[ing] a new path for companies paying millions of dollars in retiree health care benefits” (Law360, Nov. 23, 2015).
In Perez v. Mortgage Bankers Association, “several justices agreed with Ho’s contention that SCOTUS should revisit and overrule its own precedent” concerning deference to administrative interpretations of agency rules (Law360, Nov. 23, 2015).
In 2017, Mrs. Ho again argued two cases before the U.S. Supreme Court. In McLane Company, Inc. v. EEOC, she convinced the Court to limit the EEOC’s subpoena power, a win that the employment defense bar has described as “good news for employers across the country.” She also argued in Oil States Energy Services LLC v. Greene’s Energy Group, LLC, a “colossus” that has “immense commercial implications” (National Law Journal). Intellectual property experts have called it “the most important patent case in modern history,” and Supreme Court watchers credited her with “pick[ing] up two votes that pundits thought unreachable.”
An active pro bono litigator, Mrs. Ho works most frequently with the First Liberty Institute and as amicus counsel for members of the State and Local Legal Center. She is a frequent public speaker and active member of the Federalist Society, the American Law Institute, and the Washington Legal Foundation’s Legal Policy Advisory Board. She currently serves as chairman of the Board of Directors of The da Vinci School.
Mrs. Ho graduated from Duke University magna cum laude with a B.A. in English, Rice University with an M.A. and Ph.D. in English Literature, and the University of Chicago Law School with high honors. She was a member of the Law Review and Order of the Coif. She and her husband Jim, a federal judge, have a twin daughter and son.
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