Professional Biography
Image of Margo Casselman

Margo Casselman Counsel

  • Phoenix

    D +1.602.351.8159

    F +1.602.648.7000

    Phoenix

    2525 E. Camelback Road, Suite 500

    Phoenix, AZ 85016-4227

    +1.602.351.8159

    MCasselman@perkinscoie.com

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Vince Leach, et al. v. Katie Hobbs, Arizona Secretary of State, et al.

Supreme Court of Arizona
Co-counsel for amicus curiae Kathy Hoffman, et al. in support of Arizonans Fed Up With Failing Healthcare's appeal from superior court's decision determining that Arizonans Fed Up With Failing Healthcare did not submit a sufficient number of valid signatures in support of initiative petition and that the 100-word description required by A.R.S. § 19-102(A) was misleading and confusing and therefore refused to certify that initiative for the 2020 general election ballot. The Arizona Supreme Court affirmed the superior court on the grounds that Arizonans Fed Up With Failing Healthcare did not submit a sufficient number of valid signatures in support of initiative petition but declined to rule on whether the 100-word description was in compliance with A.R.S. § 19-102(A); Justice Bolick wrote a concurring opinion stating that the 100-word description was not in compliance with A.R.S. § 19-102(A). (Decided March 31, 2021, No. CV-20-0233-AP/EL) ___ Ariz. ___, ___ P.3d ___ (2021)

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Bar and Court Admissions

  • Arizona
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the District of Arizona

Education

  • University of Arizona James E. Rogers College of Law, J.D., Order of the Coif, 2017, Articles Editor, Arizona Law Review
  • Arizona State University, B.A., Business, summa cum laude, 2014, Certificate in International Business