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Marcelo Adrian Dieguez

About me

I have a passion for employee rights.  I believe in the ethical practice of law, and focus on obtaining the best results possible for my clients in the shortest amount of time, realizing the stresses and emotional toll of litigation.  At the same token, I believe that some cases have to be tried, and am not afraid of taking such cases all the way to trial.   I pride myself in providing superb legal representation and being accessible to my clients at all times in order to ensure they are fully informed about the progress of their cases.  


In my spare time, I enjoy boating, soccer, anda above all, spending time with my wife and son.


Languages spoken: English, Spanish

Photos and videos

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Practice areas


  1. Employment: 50%
    14 years
  2. Sexual Harassment: 50%
    14 years



Hourly ($350-450/hour), contingent (33-40%)

Payment types:

Cash, Check, Credit card

Attorney endorsements

15 total 

Are you an attorney? Endorse this lawyer

  • Brian Neal Gurwitz

    I had the good fortune of being introduced to Mr. Dieguez several years ago by another lawyer in the community, who knew that I was in need of a referral to an outstanding employment law attorney. Since then, I have referred several clients to Mr. Dieguez, and we've worked together with him on a few matters when a client needed both of our services. Without exception, the clients I sent to Mr. Dieguez have raved about his services. He is an outstanding attorney who is highly regarded among other employment lawyers as a rising star. He is not only knowledgeable, but a true gentleman with unquestioned integrity. His advice is not only legally sound but always very practical, taking into account not only the legal implications of the clients' situations, but also their applicable business circumstances. In short, Mr. Dieguez is a lawyer's lawyer. A prospective client can in need of employment law counsel do no better.


    Brian Gurwitz Criminal defense Attorney
    Relationship: Worked together on matter

  • Scott Hughes Davison

    As a colleague and friend for many years, I trust Marcelo's advice and find him very knowledgeable and savvy.


    Scott Davison Intellectual property Attorney
    Relationship: Fellow lawyer in community

Contact info

Diefer Law Group, P.C.

2030 Main Street
Suite 1356
Irvine, CA, 92614

Diefer Law Group, P.C.

9701 Wilshire Boulevard Suite
Suite 1000
Beverly Hills, CA, 90212

Diefer Law Group, P.C.

3403 10th Street
Suite 718
Riverside, CA, 92501



We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Rising StarSuper Lawyers Magazine2015
Top AttorneysOrange Coast Magazine2015
Client Distinction AwardMartindale-Hubbell2015
Rising StarSuper Lawyers Magazine2014
Orange County Top Lawyers-Employment LawOC Metro Magazine2014
Top 40 Lawyers Under 40-Labor & EmploymentAmerican Society of Legal Advocates2014
Rising StarSuper Lawyers Magazine2013
Client Distinction AwardMartindale-Hubbell2013
Clients' Choice AwardAVVO2013
Clients' Choice AwardAVVO2012
Honor BoardScott Moot Court Honors Board2001
RecipientSt. Thomas More Honor Society2001
Trial Advocacy First Honors AwardLoyola Law SchoolN/A
Work experience
TitleCompany nameDuration
AssociateStradling Yocca Carlson and Rauth2002 - 2004
Judicial Intern Honorable Paul BolandCalifornia Court Of Appeals: Fourth Appellate District2001 - 2001
Judicial Intern-Honroable Paul BolandThe Los Angeles Superior Court2001 - 2001
Summer AssociateCbs News2000 - 2000
Association namePosition nameDuration
California Employment Lawyers AssociationMember2013 - Present
Orange County Bar AssociationMember2002 - Present
American Bar AssociationMember2002 - Present
State Bar of California-Labor and Employment SectionMember2002 - Present
Legal cases
Case nameOutcome
Cerda, et al. v. Sander Construction, Inc.Verdict at Trial affirmed on Appeal
See all legal cases 
School nameMajorDegreeGraduated
Loyola University School of LawLawJD - Juris Doctor2002
University of California - Santa BarbaraPolitical ScienceBA - Bachelor of Arts1999
Speaking engagements
Conference nameTitleDate
The Exchange Club of Magnolia Center Annual MeetingNew Employment Law Developments and Trends2005
Orange County Bar Association, Labor and Employment CommitteeEmployment Law Case Updates2004
Orange County Bar Association Montly MeetingEmployment Law Case Update2003