David A. Grabhorn

David A. Grabhorn serves as a Senior Attorney at Messina & Hankin LLP, Temecula Valley office, where he focuses on labor and employment matters, business transactions, and judgment collection. His work is shaped by a long experience in the labor movement, where he led hundreds or more collective bargaining negotiations across the United States. He has advised and represented clients ranging from major newspaper chains to large international manufacturing and packaging corporations. This background allows him to guide companies through contract negotiations, plant acquisitions, closures, and other complex matters with efficiency and precision.

Mr. Grabhorn earned his J.D. from Southwestern University and completed the SCALE Program, where he was awarded 1st in Evidence/Trial Advocacy. He also holds a B.A. in Philosophy from the University of Louisville.

Mr. Grabhorn has represented employers throughout his legal career before the National Labor Relations Board and in labor arbitration. He has handled WARN Act, ERISA, FMLA, and EEOC matters, bringing strong advocacy to both union and non-union workplaces. He also assists companies with executive matters and employment agreements, including advising on hiring, separations, and defending wrongful termination claims. His approach centers on helping employers take corrective steps early to reduce legal exposure and strengthen workplace operations.

David A. Grabhorn has also given meaningful support through volunteer and pro bono work, including reading for blind people in college and assisting nonprofit groups after law school. His dedication extends to publishing professional articles on employment issues, adding value to both clients and the broader business community. With decades of experience in negotiation and litigation, he provides clear guidance, practical strategies, and results-focused legal support to companies navigating complex employment and business challenges.

Law Office Affiliations

• Senior Attorney, Messina & Hankin LLP
• Member, The State Bar of California

Licensed State

• California

Education

• Southwestern University
  Juris Doctor (JD)
• University of Louisville
  BA in Philosophy

Awards & Badges