Skip to main content

Jon Anthony Dieringer

Employment and labor Attorney at Murrieta, CA

5.0   5 reviews
  • Licensed for 31 years
    State CA
    Acquired 1992
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Jon

Learn Jon’s areas of practice.

Practice areas
  1. Employment and labor
    Serving Southern California in all areas of Employment Law Consulting, Preventative Law, and Litigation.

    31 years

  2. Business
    Serving Southern California businesses.

    31 years

  3. Real estate
    Representing buyers, sellers and agents to resolve disputes through negotiation, mediation, or litigation.

    31 years

I have earned peer ratings for Highest Level of Professional Excellence (AV-Preeminent), and I have numerous 5-Star ratings by clients and attorneys since being admitted in 1992.   Avvo's rating system is faulty, as it improperly rates newer and inferior attorneys with higher ratings.     

My success and dedication to excellence is my hallmark as an effective attorney. 

While I prefer eliminating or reducing disputes by pro-active Preventative Law policies or practices before they can bloom into a dispute, sometimes that may be unavoidable or the client seeks advice too late to avoid a dispute.  

I help a broad range of business clients, with few select individual cases.  I help employers implement policies to avoid or defend against problems or disputes before they have a chance to take root. I also defend businesses through negotiation, mediation or litigation, if needed. 

I have protected those businesses from disgruntled former employees who seek to extract unwarranted financial gain.   I have also helped those victimized by unlawful business practices.   In litigation, I have successfully defended businesses and individuals against improper claims, and I have successfully obtained substantial awards and settlements against those who have wronged my clients.       

As a civil litigator since 1993, I have helped my clients avoid disputes through Preventative Law practices and policies.   When litigation raised its ugly head, I have defended my clients successfully, and on those few select plaintiff cases I have obtain substantial settlements and judgments in cases ranging from physical assaults to unpaid wages and overtime, and discrimination among others. 


Dieringer Law Group, A Professional Corporation
29970 Technology Drive
Suite 204
Murrieta, CA, 92563


5.0 / 5.0
  5 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by Joe | June 8, 2018
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Great Lawyer
I have known Jon professionally since 2000. He has done everything he said and has told me the truth that certain cases were not worth fighting. Great guy. Honest guy.
Posted by Neal | June 7, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Dedicated and hard working
Hired Jon to litigate a very complex Real Estate transaction involving multiple parties. His tenacity payed off for us!
Posted by Rose | March 21, 2014
Very Helpfu
Came across his name, so I gave him a call and even though my case was to Far away from him he still gave me some helpful tips. It was nice actually speaking directly to someone as well instead of my name on a desk via a secretary! I would def use him if I lived closer. Thanks again for listening and you advice of who to call locally!
Read less
Posted by Simin | April 11, 2011
The one you can trust
Jon Dieringer: 1) Stellar Service 2) Quality Work 3)Decency and honesty 4) He shows his great concern for each individual's legal issue, that's why he does his job delicately. The cost of service would be the very last thing to consider. So, if my friends and relative going to hire a good lawyer,have some legal consultation or even looking for the right in different attorney in different field, I ask them to see Jon Dieringer.
Read less
Posted by Bret | April 5, 2011
A Man Apart
Jon has been my attorney for a few years now in a variety of forums including some that may not have been his 'forte' and he has always been polished and prepared. I can honestly say that without Jon I would find myself in much different circumstances today. In a word Jon is remarkable and I admire him personally and professionally. - He has unquestionable integrity. - He has a uniquely strong work ethic. - He is Honest with you. - He is Fair and Logical. - He is YOUR attorney more than you are his client. He listens to your desires, advises you based on his experiences and then works toward your goals - such as quick resolution. I think anyone could benefit from having Jon as their legal counsel and I have and will continue to recommend him to all of my associates, personal and professional
Read less


We have not found any cost information for this lawyer

Contact for Details


AVVO RATING 9.2 (Superb)

Work Experience

  • Attorney
  • Dieringer Law Group, A Professional Corporation
  • 2016 - Present
  • Of Counsel
  • Sundstedt & Goodman Law Offices
  • 2014 - Present
  • General Counsel
  • Vehicle Dealership Group, Inland Empire
  • 2002 - 2006
  • Attorney
  • Law Office of Jon A. Dieringer
  • 1992 - 2016
  • Residential Loan Officer, Loan Processor
  • Savings & Loan / Loan Brokerage
  • 1987 - 1991
View all work experience


  • Western State University College of Law
  • JD - Juris Doctor
  • 1992
  • California State University, Long Beach
  • BA - Bachelor of Arts
  • 1986
  • Cypress College
  • Associate Degree
  • 1983

Sample of Legal Cases

  • Zarate v. Pho 54
  • $80,000.00
  • $150,000 mediated settlement in favor of client
  • Pittroff v. Casqueiro
  • Successful jury verdict for client who was falsely accused of fraud.
View all legal cases


  • American Bar Association
  • Member
  • 2018 - Present
  • Southwest Inn of Court
  • Member
  • 2018 - Present
  • Southwest Riverside County Bar Association
  • Member
  • 2018 - Present
  • Murrieta Chamber of Commerce
  • Member
  • 2017 - Present
  • Temecula Valley Chamber of Commerce
  • Member
  • 2017 - Present
  • California Superior Court, Small Claims Division, Orange County
  • Volunteer Mediator
  • 2013 - Present
  • United States District Court, California, Southern District
  • Admitted Member
  • 2010 - Present
  • Labor and Employment Law Section, California Bar
  • Member
  • 2007 - Present
  • National Ski Patrol
  • Senior Patroller
  • 1999 - Present
  • United States District Court, California, Central District
  • Admitted Member
  • 1993 - Present
View all associations

Languages Spoken

  • English

Honors and Awards

  • AV Preeminent Rated
  • Martindale-Hubbell
  • 2020
  • Top Contributor
  • Avvo
  • 2019
  • Hugh Pendleton Outstanding Male Alpine Patroller
  • Snow Summit National Ski Patrol
  • 2016
  • Top Contributor
  • Avvo
  • 2014
  • Mediation Certificate, DRPA
  • Community Service Programs, Inc.
  • 2012
  • American Jurisprudence - Property
  • Western State University, College of Law
  • 1991
  • Member, Peer Elected for Excellence
  • Who's Who Among Students in American Universities & Colleges.
  • 1991
View all awards


  • Newsletter, June 2014
  • Employment Law Update - Minimum Wage Increase
  • 2014
  • Newsletter, October 2014
  • Employment Law Updates - Expense Reimbursement
  • 2014

Speaking Engagements

  • Southwest Riverside County Bar Association, January 2020 meeting
  • Employment Law, Legislative Update - Independent Contractors. Attorney Continuing Education (MCLE) provided
  • 2020
  • Employment Law - What You're Doing Wrong - How one disgruntled employee can ruin your whole business.
  • Employment Law Update
  • 2020
  • Navigating California's Worker Laws and Compensation Issues for Businesses
  • Employment Law Update
  • 2019
  • How one disgruntled employee could ruin your whole business.
  • Employment Law Updates
  • 2019
  • Independent Contractors Redefined under Dynamex
  • Employment Law Update
  • 2018
  • In-house Client Conference
  • Employment Law Update and Policy Review
  • 2017
  • Car Buyer's Bill of Rights, In House General Counsel Review
  • Car Buyer's Bill of Rights
  • 2006
  • Consumer Privacy, In House General Counsel review
  • Privacy Regulations and Policies
  • 2005
  • Employment Policies, In House General Counsel Review
  • Employment Policies
  • 2004
View all speaking engagements

Attorney endorsements

Received (16)
Given (13)
Endorse Jon
Employment and labor Attorney | Jun 11
Relationship: Fellow lawyer in community
"I've referred several contentious matters to Jon Dieringer. I counsel businesses on employment matters but when lawsuits are filed, I look for someone else to help my clients. Jon has been helpful to my office by taking good care of my clients. I'll not hesitate to refer matters to him again."
Employment and labor Attorney | Jun 10
Relationship: Opposing Counsel on matter
"Jon and I were oppsing counsel on an employment matter. Jon's professionalism resulted in an early resolution satisfying to both sides. I would highly recommend Jon as an attorney who is dedicated to his clients well being and a strong advocate on their behalf."
Employment and labor Attorney | Jun 06
Relationship: Fellow lawyer in community
"John is an excellent attorney whom I refer all labor and employment matters."
Lawsuits and disputes Attorney | Jun 05
Relationship: Worked together on matter
"Jon is an excellent lawyer. I’ve known Jon for 25 years. Jon and I were co-counsel on a case in Los Angeles that resulted in a 37- day jury trial. Jon’s client came out of that trial very favorably. Since that time I have been referring cases for the last 20 years to Jon knowing that he is a conscientious, Experienced, reasonable and most important aggressive attorney. Not only would I refer cases to Jon but if I had a legal matter myself I would hire Jon for myself or my family."
Real estate Attorney | Jun 04
Relationship: Worked together on matter
"Jon and I worked on a case together last year that ended in a week long trial in Los Angeles County Superior Court. We represented co-defendants in a multi-million dollar claim for fraud and breach of contract in a real estate financing matter. We both won our cases and he was a pleasure to work with. Jon has great courtroom presence and is very well versed in the law."
Business Attorney | Jun 04
Relationship: Worked together on matter
"I have worked with Jon on a number of matters over my 22 years of practice and in each instance he has exhibited excellent work, ability, and temperment. He works hard and achieves excellent results."
Litigation Attorney | Jun 04
Relationship: Worked together on matter
"Jon is amazing. He's caring, ethical, and never misses a deadline. He's really come through for me in a pinch when I was up against law and motion deadlines. His work product is top notch and fees extremely reasonable."
Employment and labor Attorney | Jun 04
Relationship: Worked together on matter
"I endorse this lawyer. Mr. Dieringer is extremely knowledgeable in the area of labor and employment law and offers clients an extremely thorough analysis of the claims against them, or sought to be pursued by them."
Litigation Attorney | Jun 04
Relationship: Worked together on matter
"I endorse this lawyer. Jon is incredibly diligent, thorough and professional, and among the most reliable and effective attorneys with whom I've worked over the course of two decades."
Employment and labor Attorney | Mar 26
Relationship: Fellow lawyer in community
"Jon is a fantastic employment litigator that has the knowledge, skills, and dedication to achieve results for his clients."
Employment and labor Attorney | Mar 14
Relationship: Fellow lawyer in community
"I endorse this lawyer. I met Jon at a conference, and learned that he represents workers in employment matters. We conferred and I was impressed with his expertise; since then I have looked to him for guidance myself, especially on wage/hour matters."
Employment and labor Attorney | Mar 13
Relationship: Worked together on matter
"Mr. Dieringer is a dedicated advocate on behalf of his clients and has significant experience in employment law matters. I endorse him without hesitation and never hesitate to send clients his way."
Personal injury Attorney | Mar 12
Relationship: Worked together on matter
"I endorse this lawyer. I have associated with Jon on a civil matter where he took the lead an proven himself as an excellent civil litigator. He has the knowledge and experience state and federal court to win cases."
Employment and labor Attorney | Jan 28
Relationship: Worked together on matter
"I have worked with Jon Dieringer on several employment law matters. Jon is an intelligent and highly skilled attorney who aggressively and tirelessly pursues the interests of his clients while conducting himself with the highest degree of ethics and professionalism. His clients are fortunate to have such a strong, compassionate advocate in their corner."
Employment and labor Attorney | Apr 06
Relationship: Fellow lawyer in community
"Jon is an outstanding attorney, with experience on both sides of employment law. He's also a genuinely charming and nice person. I wholeheartedly recommend him for employment law cases."
Litigation Attorney | Apr 05
Relationship: Worked together on matter
"I endorse this lawyer. I have worked with Jon on several litigation matters over the years. Jon is an experienced and always well-prepared litigator with sharp insights and strong advocacy skills. He is above all highly professional and a pleasure to work with. Without hesitation, I offer my endorsement."
View more endorsements
Lawsuits and disputes
Estate planning
Real estate
Landlord or tenant
Employment and labor
Employment and labor
Employment and labor