Margaret R. Prinzing

Partner

Margaret R. Prinzing is a partner who focuses on litigation involving government law, constitutional law, and public policy issues.  Representative matters include successfully defending the California Legislature in litigation challenging the constitutionality of a toll increase on Bay Area bridges (Howard Jarvis Taxpayers Association v. Bay Area Toll Authority, 51 Cal. App. 5th 435 (2020)); representing counties in ongoing challenges to the constitutionality of the unitary tax rate (see, e.g.Pacific Bell Telephone Company et al. v. County of Riverside et al., No. E083505, app. pending); successfully defending the City of Mountain View in litigation relating to oversized vehicle ordinances and rent control matters (Navarro v. City of Mountain View, Case No. 21-cv-05381 (N.D. Cal. Feb. 8, 2023); Bolhouse v. Rental Housing Committee, No. H046335, 2020 WL 7585884 (Cal. Ct. App. Dec. 22, 2020)); and filing an amicus brief on behalf of members of the California Legislature in a case asserting that California’s capital punishment scheme is administered in a racially discriminatory manner.  (Office of the State Public Defender, et al. v. Bonta, No. S284496, pet. pending).

Ms. Prinzing also specializes in election law.  She is currently representing the California Legislature and Governor Newsom in litigation asking the California Supreme Court to remove the Taxpayer Protection and Government Accountability Act from the ballot on the grounds that it is an unconstitutional revision and would impair essential government services.  (Legislature v. Weber, No. S281977, pet. pending).  She also recently defended the Los Angeles County Registrar of Voters in litigation that unsuccessfully challenged the Registrar’s disqualification of a recall petition (Committee to Recall Los Angeles County District Attorney George Gascón v. Logan, No. 23STCP02365, dism. Apr. 5, 2024), and won emergency relief in the California Supreme Court to ensure that Proposition 57 appeared on the 2016 ballot. (Brown v. Superior Court, 63 Cal. 4th 335 (2016)).   

In addition, Ms. Prinzing has expertise in health care issues.  She is currently defending on appeal the dismissal of litigation over the hospitalization of patients experiencing mental health emergencies.  (Siskiyou Hospital Inc. v. County of Siskiyou, et al., Nos. C097671 & C098311, app. pending).  She represented a joint powers authority in the first appeal in California of an audit under the Mental Health Services Act, and filed an amicus brief in a case addressing payments to hospitals for emergency medical services.  (Santa Clara County v. Superior Court, 14 Cal. 5th 1034 (2023).)

Prior to joining the firm, Ms. Prinzing was an associate with Bingham McCutchen where she specialized in civil and appellate litigation.  She also worked as a legislative assistant to two members of Congress, focusing on health care, welfare, and education matters.

Representative Highlights

Results described below were dependent on the facts of that particular case. Prior results do not guarantee or predict similar outcomes.

  • Howard Jarvis Taxpayers Association v. Bay Area Toll Authority, 51 Cal. App. 5th 435 (2020).  Successfully defended the California Legislature in litigation challenging the constitutionality of Regional Measure 3, a toll increase on Bay Area bridges. 
  • AT&T Mobility LLC, et al. v. County of Riverside, Riverside County Superior Court, No. RIC 1905814 (2020).  Represent Riverside County in a challenge to the constitutionality of the unitary tax rate.
  • Bolhouse v. Rental Housing Committee, No. H046335, 2020 WL 7585884 (Cal. Ct. App. Dec. 22, 2020).  Defeated challenge to the City of Mountain View’s implementation of a voter-approved rent control measure.
  • Taylor v. Yee, 780 F.3d 928 (9th Cir. 2015).  Successfully defended district court’s dismissal of due process challenges to California’s Unclaimed Property Program.
  • City of Berkeley v. Dupuis, Alameda County Superior Court, No. RG14720117 (2014).  Successfully represented the City in effort to use Council-approved redistricting map until a referendum election took place.
  • County of Colusa v. Douglas, 227 Cal. App. 4th 1123 (2014).  Successfully represented 19 counties in challenge to the State of California’s efforts to shift financial responsibilities for certain mental health services from the State to the counties.
  • Suever v. Chiang, 484 Fed. Appx. 187 (9th Cir. 2012), cert. denied, 133 S. Ct. 1243 (2013).  Successfully defended district court’s dismissal of due process challenges to California’s Unclaimed Property Program.
  • CASE v. Brown, 195 Cal. App. 4th 119 (2011).  Represented the California State Controller in cases successfully challenging the Governor’s authority to impose furloughs unilaterally on the state workforce.

Education

  • Indiana University, B.A., with distinction, 1992
  • University of California, Berkeley School of Law (Boalt Hall), J.D., 2000

Admissions

  • California