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VerifiedLawFirms editorial: Focus and practice areas — Mastagni Holstedt works out of Sacramento, with a second office listed in Rancho Cucamonga.

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About Mastagni Holstedt

Mastagni Holstedt, A Professional Corporation, is a law firm based in Sacramento, California, with its main office at 1912 I Street. The site also lists an office in Rancho Cucamonga.

The firm handles employment and labor law, workers' compensation, and personal injury cases, and it offers a free initial consultation with service available in Spanish. Its employment and labor work covers wage and hour law, wrongful termination, workplace discrimination, hostile work environment claims, and whistleblower and qui tam litigation.

The personal injury practice includes car, truck, motorcycle, bicycle, and pedestrian accidents, along with medical malpractice, products liability, and wrongful death. The firm also represents public safety employees, including police officers and firefighters, in matters under the Peace Officers Bill of Rights and the Firefighters Bill of Rights, as well as labor contract negotiations. The site lists more than thirty attorneys and a group of labor consultants, and it states that the firm serves clients across Sacramento and surrounding Northern California counties.

Editor's Review

VerifiedLawFirms editorial

Focus and practice areas

Mastagni Holstedt works out of Sacramento, with a second office listed in Rancho Cucamonga. The firm handles employment and labor law, workers' compensation, and personal injury. Its site says it serves clients across Sacramento and the surrounding Northern California counties.

Inside the employment and labor practice, the firm covers wage and hour law, wrongful termination, workplace discrimination, hostile work environment claims, and whistleblower and qui tam litigation. That set has a clear centre of gravity: the employee's side of a workplace dispute.

The personal injury side is broader. It includes car, truck, motorcycle, bicycle, and pedestrian accidents, along with medical malpractice, products liability, and wrongful death. Consultations are available in Spanish.

Public safety work and what it involves

A distinct strand of the firm's practice is representation of public safety employees, including police officers and firefighters. The site names the Peace Officers Bill of Rights and the Firefighters Bill of Rights as the frameworks that work sits under, and it lists labor contract negotiations as part of the same offering.

Those statutes matter because they govern how a public employer may investigate and discipline its own officers. As general context, an internal affairs investigation under those rules has procedural steps: notice before an interrogation, limits on how questioning is conducted, access to certain materials, and a window in which discipline must be imposed. A misstep by the employer at any of those points can become the substance of the case.

Administrative appeals of discipline typically run before a hearing officer or a civil service board rather than a jury. The record built at that stage often decides what happens later in court. In my opinion, that is why several of the firm's attorneys describe their work in terms of hearings and investigations as much as litigation.

How the team is built

The site lists more than thirty attorneys plus a group of labor consultants. Departments are named directly on the attorney profiles: a Labor and Employment Department and a Workers' Compensation Department, each with supervising and associate-level lawyers.

Named attorneys and their stated backgrounds

David P. Mastagni is the founder and managing partner. His profile puts his practice in civil litigation and labor law, and it states he has tried over 300 proceedings to verdict, including more than 100 jury trials in state and federal courts. It also states he has participated in over 450 state and federal appellate cases, including matters before the U.S. Supreme Court. He advises public and private clients.

David E. Mastagni is a partner in the Labor Department. He holds a B.A., cum laude, from the University of California, Davis, awarded in 1996, and a J.D. from the University of California, Berkeley School of Law, awarded in 1999. His practice covers labor and employment law for public employee unions and their members, including law enforcement and fire personnel.

Craig E. Johnsen is a supervising partner in the Workers' Compensation Department and has worked at the firm since 1994. He litigates in state and federal courts across California and represents correctional officers and public safety employees in workers' compensation hearings, trials, and appeals. His law degree is from the University of California, Davis.

Brian A. Dixon is a senior associate in the same department. He earned a bachelor's degree from the University of California, Berkeley and his juris doctorate from Lincoln Law School. His work centres on workers' compensation and industrial injury matters for public safety employees and injured workers.

Douglas T. Green is an associate in the Workers' Compensation department. His profile describes past representation of public entities in grievances, collective bargaining, and employee discipline, along with prevailing wage and public construction work. Construction disputes and performance bonds appear in that history.

The labour and employment associates

Byron G. Danell holds a bachelor's degree in Speech Communication and Political Science from San Diego State University and a law degree from the University of San Diego. As an associate in the Labor and Employment Department, he represents public sector employees in criminal defence related matters, including administrative hearings, disciplinary actions, and internal affairs investigations.

Cindy Lloyd is an associate in the same department, representing first responders and public safety employees in administrative and disciplinary investigations, hearings, critical incident investigations, and criminal proceedings. She earned her J.D. from the University of the Pacific, McGeorge School of Law, and previously worked for Sacramento-area offices.

Alicia R. Chaudry is an associate whose practice focuses on civil litigation. She holds a B.A. from the University of Nevada, Reno and a J.D. from Gonzaga University School of Law, awarded in 2023. She speaks Hindi.

Alexandra Holland earned her J.D. from the University of Southern California, Gould School of Law in 2025, with a B.S. in Economics from Michigan State University. During law school she worked at the New Jersey Attorney General's Office in the Insurance and Healthcare Fraud Department and at the Los Angeles District Attorney's Office in the White-Collar Crime Division.

Easton Michael Broome is an attorney at the Sacramento office. His listed education includes the University of California, Berkeley and the University of the Pacific, McGeorge School of Law. Amy Browen also appears on the attorney roster.

What the record shows

The clearest signal in the published material is longevity within the same building. Johnsen has been at the firm since 1994. David E. Mastagni's admission-era dates put him there across a similar span of years. As a reviewer, I read that as a firm where the senior workers' compensation and labor practices have been run by the same people for a long time.

The second signal is departmental structure. Workers' compensation and labor and employment each have their own named supervising or partner-level attorney, with associates attached. For a claimant whose case touches both, an industrial injury that also produces a disciplinary problem, that structure keeps the two threads inside one office.

Where the profiles are specific

Education and admission details are stated attorney by attorney, with graduation years given for several. Prior employers appear too: a district attorney's office, a state attorney general's office, public entity representation on the employer side. Language capability is stated where it exists, in Spanish at the firm level and Hindi for one associate.

What the site does not state is a founding year. The firm's own pages carry no date of establishment, so the earliest fixed point available from the published profiles is Johnsen's 1994 start.

Who the work is aimed at

The practice areas and the attorney biographies point in the same direction: employees, unions, and injured workers, with a heavy weighting toward public sector and public safety personnel. Police officers, firefighters, and correctional officers are named on the profiles by role.

The personal injury and medical malpractice offering widens the door to individual clients with no employment dispute at all. Both practices operate from the Sacramento office at 1912 I Street, with the Rancho Cucamonga location listed in the site navigation for Southern California matters. The firm names Sacramento and the surrounding Northern California counties as its service area.

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Alexandra Holland

Alexandra Holland earned her J.D. from the University of Southern California, Gould School of Law in 2025 and holds a B.S. in Economics from Michigan State University. During law school she worked at the New Jersey Attorney General's Office in the Insurance and Healthcare Fraud Department and at the Los Angeles District Attorney's Office in the White-Collar Crime Division, and she worked for Mastagni Holstedt gaining experience in labor and employment representation. She has joined Mastagni Holstedt's Labor Department in Sacramento, where she represents clients in administrative and disciplinary investigations and hearings and serves as corporate counsel for association clients.

Alicia Chaudry

Alicia R. Chaudry is an associate at Mastagni Holstedt in Sacramento, California. She earned a B.A. from the University of Nevada, Reno and a J.D. from Gonzaga University School of Law in 2023. Her practice focuses on civil litigation. She speaks Hindi.

Amy Browen
Brian A. Dixon

Brian A. Dixon is a senior associate attorney in the Workers' Compensation department at Mastagni Holstedt, APC in Sacramento, California. He earned a bachelor's degree from the University of California, Berkeley, and his juris doctorate from Lincoln Law School. His practice focuses on workers' compensation and industrial injury matters, representing public safety employees and injured workers across California.

Byron Danell

Byron G. Danell earned a Bachelor's Degree in Speech Communication and Political Science from San Diego State University and a law degree from the University of San Diego. He is an associate at Mastagni Holstedt in the Labor and Employment Department, where he represents public sector employees in criminal defense related matters, including administrative hearings, disciplinary actions, internal affairs investigations, critical incidents, and labor arbitration hearings. His work involves the Peace Officers' Procedural Bill of Rights Act, the Firefighters Procedural Bill of Rights Act, the Meyers-Milias-Brown Act, and related California Labor and Penal Codes. Prior to joining the firm, he practiced law for over eighteen years in Southern California.

Cindy Lloyd

Cindy Lloyd is an associate in the Labor and Employment Department of Mastagni Holstedt, APC, where she represents first responders and public safety employees in administrative and disciplinary investigations, hearings, critical incident investigations, and criminal proceedings. She earned her J.D. from the University of the Pacific, McGeorge School of Law, and previously worked for the Sacramento County District Attorney, the California Department of Public Health, and the Placer County Superior Court as a research attorney. At the Department of Public Health, she conducted hearings concerning violations at hospitals and clinical laboratories. She earned a B.S. in Biological Sciences from California State University, Sacramento, and previously worked as a clinical laboratory scientist analyzing and interpreting test results.

Craig E. Johnsen

Craig E. Johnsen is a supervising partner in the Workers' Compensation Department at Mastagni Holstedt, APC, where he has worked since 1994. He handles litigation in state and federal courts throughout California and represents correctional officers and public safety employees in workers' compensation hearings, trials, and appeals. He holds a law degree from the University of California, Davis, a bachelor's degree from the State University of New York College at Cortland, and a Master's degree in English from the University of the Pacific. He previously worked as a group supervisor and youth counselor for the California Department of Corrections and has served as an instructor at San Joaquin Delta College.

David E. Mastagni

David E. Mastagni is a partner in the Labor Department at Mastagni Holstedt, APC, in Sacramento, California. He earned a B.A., cum laude, from the University of California, Davis in 1996 and a J.D. from the University of California, Berkeley School of Law in 1999. His practice focuses on labor and employment law representing public employee unions and their members, including law enforcement, firefighters, and public attorneys, in matters such as administrative hearings, pension litigation, writs of mandamus, class and collective actions, and appeals. He is a panel attorney for the PORAC Legal Defense Fund and frequently lectures on collective bargaining, the FLSA, and public employee discipline.

David P. Mastagni

David P. Mastagni is the founder and managing partner of Mastagni Holstedt, APC, where his practice focuses on civil litigation and labor law. He has tried over 300 proceedings to verdict, including more than 100 jury trials in state and federal courts, and has participated in over 450 state and federal appellate cases, including matters before the U.S. Supreme Court. He advises public and private labor unions on contract disputes, grievances, and binding arbitration, and has testified at the state Capitol on labor, peace officer, and consumer litigation matters. He earned his law degree from McGeorge School of Law, University of the Pacific, where he received the American Jurisprudence Award in Evidence, and he serves on the school's Dean's Council.

Douglas T. Green

Douglas T. Green is an associate at Mastagni Holstedt, APC in Sacramento, California, working in the firm's Workers' Compensation department. He has represented public entities in labor and employment matters including grievances, collective bargaining, and employee discipline, as well as prevailing wage and public construction projects. His work has involved construction disputes, performance bond litigation, public bidding, and prevailing wage requirements. He attended McGeorge School of Law and received his Bachelor's degree from Brigham Young University.

Easton Broome

Easton Michael Broome is an attorney at Mastagni Holstedt, APC in Sacramento, California. Broome's listed education includes the University of California, Berkeley and the University of the Pacific, McGeorge School of Law.

Elizabeth Jacobo

Elizabeth Renee Jacobo is an attorney at Mastagni Holstedt, A.P.C. in Sacramento, California. She earned a Juris Doctor from Southwestern University School of Law in 2006 and a Bachelor of Arts from California State University, Los Angeles in 2002. She also attended the Los Angeles College of Chiropractic. She speaks Spanish.

Garrett R. Porter
Grant A. Winter

Grant Winter is the Managing Attorney of the Civil Litigation Department at Mastagni Holstedt, A.P.C. in Sacramento, California. He earned a BA from the University of California, Davis and a JD from Santa Clara University School of Law. His practice focuses on personal injury, civil rights, employment, labor, and appellate matters, and mainly involves defending individual law enforcement officers in civil rights lawsuits. He is a PORAC Legal Defense Fund panel attorney and provides training on defending claims under 42 U.S. Code section 1983.

Howard A. Liberman

Howard A. Liberman earned a B.A. from Bloomsburg University and a J.D. from Temple University School of Law. He began his legal career in 1992 with the United States Navy Judge Advocate General's Corps, serving during five years of active duty as a defense attorney, prosecutor, and Assistant Staff Judge Advocate. He later served in the Navy Reserve in roles including appellate defense counsel and executive officer, retiring as a Commander in 2014. In civilian practice he is a Senior Associate at Mastagni Holstedt and Managing Attorney of the firm's Los Angeles office, handling public sector labor law, public safety disciplinary defense, collective bargaining, and appeals defending police officers and firefighters.

Jason Hauer

Jason Hauer is an attorney practicing in Sacramento, California, with the firm Mastagni Holstedt, A.P.C. He attended the University of San Diego and earned his law degree from McGeorge School of Law, University of the Pacific.

John R. Holstedt

John R. Holstedt is the managing partner responsible for the Workers' Compensation department at Mastagni Holstedt, APC, where he focuses on workers' compensation litigation and handles both trial and appellate work. His practice also includes personal injury and labor and employment law. He has participated in oral arguments before the Third District Court of Appeal. Before his legal career, he served as a Captain in the United States Air Force from 1969 to 1974, including a tour of duty in Vietnam.

Jonathan D. Char

Jonathan D. Char is an associate attorney in the Workers' Compensation department at Mastagni Holstedt, APC in Sacramento, California. He earned a B.S. in Accountancy from California State University Sacramento in 2007 and a J.D. from Lincoln Law School of Sacramento in 2015, and he is a Certified Public Accountant. His practice focuses on workers' compensation matters, including work-related injuries for laborers and state and local public safety personnel. He has produced educational videos on workers' compensation topics that are available on the firm's website.

Joseph A. Hoffmann

Joseph A. Hoffmann is a Senior Associate in the Labor and Employment Department at Mastagni Holstedt, APC, where he represents public sector employees in administrative and disciplinary investigations, hearings, and critical incident inquiries. He also handles criminal defense matters. He previously served as a deputy district attorney, trying cases involving murder, sex crimes, domestic violence, and narcotics. He holds a B.A. from Creighton University and a J.D. from McGeorge School of Law.

Joshua A. Olander

Joshua A. Olander is a senior associate attorney in the Labor and Employment Department at Mastagni Holstedt, where he represents public sector employees in administrative and disciplinary investigations, hearings, critical incident investigations, and criminal defense. Before joining the firm, he worked as a criminal defense attorney at the Law Offices of James E. Blatt in Los Angeles, handling misdemeanor and felony cases including DUI, battery, robbery, firearm possession, drug offenses, sexual assault, and murder. He graduated with honors from California Western School of Law, where he concentrated in Criminal Prosecution and Defense Practice and interned at the San Diego Office of the Public Defender. He holds a B.A. from the University of California, Davis.

Kathleen N. Mastagni Storm

Kathleen N. Mastagni Storm is a partner at Mastagni Holstedt, APC in Sacramento, California. She earned a Bachelor of Arts in Classical Civilization from the University of California, Davis and a Juris Doctor from the State University of New York at Buffalo. Her practice focuses on labor and employment law, including union organizing, unfair labor practice litigation, and collective bargaining, and she represents public and private unions before the Public Employment Relations Board and the National Labor Relations Board. She handles trial and appellate matters such as disciplinary cases, officer-involved shootings, and discrimination cases in California and federal courts, and serves as an adjunct lecturer at California State University, Sacramento.

Kenneth E. Bacon

Kenneth Bacon is a senior associate at Mastagni Holstedt, A Professional Corporation, working in the firm's Sacramento civil litigation department. He focuses primarily on legal malpractice law and also handles matters involving insurance coverage and litigation, construction defects, and professional liability and ethics. He earned a Bachelor of Science in criminology from San Jose State University and a law degree from Santa Clara University School of Law. He has served as chair of the State Bar of California's Mandatory Fee Arbitration Committee and chairs the Sacramento County Bar Association's Fee Arbitration Committee and Ethics Committee.

Melissa M. Thom

Melissa M. Thom is a senior associate attorney with the Civil Litigation and Labor Departments of Mastagni Holstedt, A.P.C. Her practice includes civil litigation matters such as employment disputes involving harassment and discrimination, wage and hour claims, and personal injury. She also represents public sector employees in administrative investigations, disciplinary matters, grievances, and critical incidents on behalf of the PORAC Legal Defense Fund and other state and local labor associations. She earned a B.A. from California State University, Fullerton and a J.D. from Western State University, College of Law.

Mendel Schochet
Michael Reed

Michael Reed is an associate at Mastagni Holstedt in the Labor and Criminal Department. He represents first responders and public employees in administrative investigations, including disciplinary matters, critical incidents, grievances, and criminal allegations, and can represent a client in both the administrative and criminal arenas when both arise from the same incident. He has ten years of experience as a criminal defense trial attorney and previously worked as a traffic attorney and as a criminal defense attorney handling DMV administrative matters, DUIs, domestic violence, and sex crimes. He earned his J.D. from Thomas Jefferson School of Law, where he interned with the San Diego Public Defenders Office and the San Diego Federal Defenders Office, served on the Moot Court Team, and graduated cum laude.

Phillip R.A. Mastagni

Phillip Mastagni is a partner in the civil litigation department at Mastagni Holstedt, APC, where he handles trial and appellate litigation in California state and federal courts. He earned a bachelor's degree from the University of California, Berkeley in 2002 and a Juris Doctor from Georgetown University Law Center in 2005, with a focus on international and EU law, and he completed the National Trial Advocacy College at the University of Virginia. His practice covers complex civil matters including product liability, catastrophic injury, and employment litigation, and he serves as a PORAC Legal Defense Fund panel attorney. He has handled cases nationally and internationally, represented victims of the Asiana Airlines Flight 214 crash, and speaks German.

Raul Calderon
Sean D. Currin

Sean D. Currin is a Senior Associate in the Labor and Employment Department at Mastagni, Holstedt, APC in Sacramento, California, where he represents public sector employees. His practice covers administrative investigations, labor arbitration hearings, and civil litigation, and he serves as general counsel to public safety unions. He earned a B.A. from the University of California, Berkeley in 2002 and a J.D. from Thomas Jefferson School of Law in 2007. Before law school he gained experience at a District Attorney's Office and later worked with a civil litigation firm in Oakland handling complex matters.

Sean D. Howell

Sean D. Howell is a Senior Associate in the Labor department at Mastagni Holstedt, A.P.C. in Sacramento, California, where he represents public sector employees. He handles administrative investigations, hearings, and civil litigation, including mandamus actions under the Public Safety Officers Procedural Bill of Rights Act, and represents peace officers during critical incident investigations. He provides general counsel and manages contract negotiations for police labor associations. He earned his J.D. from Lincoln Law School, and previously worked at the Placer County Facilitator's Office assisting unrepresented litigants with family law and civil matters.

Spencer Shure

Spencer M. Shure is an associate in the Sacramento office of Mastagni Holstedt, APC and a member of the firm's Labor and Employment Department. He earned his J.D. from the University of California, Irvine School of Law in 2020, where he served as Editor-in-Chief for the UC Irvine Journal of International, Transnational and Comparative Law and was a Research Fellow for Professors Henry Weinstein and Eunice Park. He participated in the UC Irvine Environmental Law Clinic, drafting an amicus brief for a federal appellate case and submitting two comment letters to the Bureau of Land Management on behalf of a client. Prior to law school, he earned his B.S. in Managerial Economics from UC Davis in 2016 with a minor in Professional Writing.

Steven W. Welty

Steven Welty is a senior associate at Mastagni Holstedt whose practice concentrates on labor and employment law, with a focus on fitness for duty and disability retirement litigation. He serves as lead counsel for several California law enforcement associations, including the Sacramento County and Alameda County Deputy Sheriffs' Associations, and represents peace officers in discipline matters, administrative investigations, and appeals. He has tried cases in California superior courts, several California District Courts of Appeal, and federal courts including the Ninth Circuit, and has litigated before the California State Personnel Board and the California Office of Administrative Hearings. He earned a B.A. from California State University, Sacramento in 1987 and a J.D. from the University of the Pacific McGeorge School of Law in 1997.

Steven Welch
Stuart C. Woo

Stuart Woo is a senior associate attorney in the Workers' Compensation department at Mastagni Holstedt, APC, where he represents clients from northern California and the Bay Area in hearings and trials before Workers' Compensation Appeals Boards. He earned a B.A. from the University of California, Berkeley in 1981 and a J.D. from Golden Gate University School of Law in San Francisco in 1984. His prior experience includes eight years as a deputy trial counsel in the State Bar of California's Office of the Chief Trial Counsel, where he prosecuted attorney ethics and discipline cases before the State Bar Court. He also oversees the firm's continuing legal education courses and serves on the Sacramento County Bar Association's Diversity Hiring and Retention Committee.

Timothy A. Davis

Timothy A. Davis is an Associate Attorney in the Labor and Employment Department of Mastagni Holstedt in Sacramento, California. He represents public safety employees in administrative and disciplinary investigations, hearings, critical incident investigations, and criminal defense. Before practicing law, he attended the Sacramento Police Academy in 1998 and spent over 25 years as a Sacramento Police Officer, serving as a Patrol Officer, Traffic Officer, and DUI Enforcement Officer. He graduated from Brigham Young University with a bachelor's degree in History and earned a Juris Doctor from the University of the Pacific, McGeorge School of Law in 2016.

Vanessa A. Muños
Zachary Haddad

Zachary Haddad is an Associate Attorney in the Workers' Compensation Department at Mastagni Holstedt, APC, in Sacramento, California, where he represents injured workers in California's workers' compensation system. He earned his Juris Doctor from the University of California College of the Law, San Francisco, and a bachelor's degree in political science from California Lutheran University. Before joining Mastagni Holstedt, he worked as a law clerk at Calone & Harrel Law Group in Stockton, California, where he focused on probate litigation, motion practice, and discovery in civil matters. He is a member of the Sacramento County Bar Association.

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Address

1912 I Street
Sacramento, CA 95811

Map of 1912 I Street, Sacramento, CA (see the address above for a text alternative).