Mastagni Holstedt, A Professional Corporation

10/17/2026

MH @ PORAC Institute | Oct 13–15

Real bargaining strategies that actually work.

Our Labor Consultant Stacie Casabian led the Collective Bargaining Course at the PORAC Institute — breaking down past practices, internal equity, and how to push for stronger agreements when it counts.

Proud to mark our firm’s 50th anniversary by sharing what we’ve learned over decades of representing public safety professionals.

Thanks to everyone who joined the conversation.

10/14/2026

When the Legislature advanced the No Vigilantes Act, the Peace Officers Research Association of California warned that the measure was const...

10/08/2026

Sacramento County Deputy Sheriffs' Association & STAR 6 Foundation Same tee sheet, same cause, and always a great day on the course!🏌⛳

Founding partner David P. Mastagni was out on the course for the morning festivities, and partner David E. Mastagni spent the day on the course with clients and friends on Monday out Verdera Country Club . The tournament started with the helicopter ball drop and only got better from there!🚁

10/07/2026

📣Mastagni Holstedt Partner Kathleen N. Mastagni Storm will join the Sacramento Business Journal’s 2026 Women’s Health Summit as a panelist on October 30 at the Hyatt Regency Sacramento.

From menopause in the workplace to a life-changing medical diagnosis, the summit brings medical experts, business leaders, and workplace advocates together for candid conversations about women’s health and career success.

Kathleen will speak to the legal questions too many women are left to navigate alone: pregnancy and postpartum protections, medical leave, disability accommodations, lactation rights, retaliation, and what “reasonable” actually means when a diagnosis collides with a job.

Women’s Health Summit 2026
Hyatt Regency Sacramento
October 30, 2026
7:30 a.m.–11:45 a.m.
We are proud to be part of the conversation. Health should not have to cost someone her career.

10/06/2026

🐎Mastagni Holstedt was proud to sponsor Saturday’s event at the Rodeo Arena in Folsom. The stands were full, the arena was loud, and the Sacramento County Sheriff’s Office helicopter fly-by set the tone before the first ride.

MH Labor Consultants, Christopher Fries and Dan Koontz were on hand for the firm, alongside deputies, first responders, and neighbors who packed the arena for the Sacramento County Sheriff’s Foundation.

Thank you to the Sheriff’s Office, the Foundation, the competitors, and every volunteer who made the night possible. See you next year.🐎

10/06/2026

Star 6 2026

10/05/2026

⛳Proud to be a Premier Sponsor of the Star 6 Golf Tournament again for 2026! The Star 6 board is the Star 6 Foundation golf tournament, the benevolent arm of the Sacramento County Deputy Sheriffs’ Association. It honors Deputies Kevin Blount and Joe Kievernagel, killed in the Star 6 helicopter crash on July 13, 2005, and supports law enforcement families.

The tournament is always a success because the organizers, every association, and every sponsor out on the course today are all dedicated to honoring and recognizing the sacrifice of law enforcement.

Congratulations to our fellow Premier Sponsors, and to every Major, Tee Box, Banner, and Tournament Sponsor who made the day possible.

See you on the course!🏌

10/05/2026

10/05/2026

💯Congratulations to MH Partner David Emilio Mastagni. The Nevada Bar has confirmed in writing that he passed the July 2026 Nevada Bar Exam. The State Bar released the unofficial pass list on October 2, 2026, and David also received the Bar's letter confirming the result. This is a clear and well-earned milestone after a demanding exam. The July 2026 overall unofficial pass rate was 50 percent.

Well done, David! We look forward to the Court's offer of admission and the oath that follows.

09/30/2026

Always a pleasure and an honor to support the VCDSA Annual Shoot!