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About me

Ronson “Ronnie” Shamoun is a tax controversy attorney with over fifteen years of tax experience including more than ten years in legal practice. Mr. Shamoun has helped thousands of clients find solutions to their civil and criminal tax matters.

He has been honored by many different organizations for a variety of awards over the past few years, most recently being named a finalist in the 2015 San Diego Business Journal’s Most Admired CEO Award and as a 2015 Top Lawyer by San Diego Magazine. Because of his stellar client reviews and recommendations from other attorneys in the community, in 2014 awarded him with the Client’s Choice award in all of his practice areas: tax, business, trusts, and real estate. Additionally in 2014, he was honored as a Best Attorney and Metro Mover to Watch by San Diego Metro Magazine, as a Top Tax Attorney by the San Diego Daily Transcript, by the San Diego Business Journal as Best of the Bar, and as a Top Lawyer by San Diego Magazine. In 2013, he was named a Top Young Influential and a Top Tax Attorney by the San Diego Daily Transcript, a Top Lawyer by San Diego Magazine, and a Top Lawyer in California by American Lawyer Media. In 2013, he also received the prestigious AV Preeminent rating from Martindale Hubbell, an award which recognizes an attorney’s excellence in legal ability and ethical practice, for which he is deeply grateful. RJS LAW has also won many awards as a firm including being named a finalist in the small business category for the Torch Award for Marketplace Ethics, presented by the Better Business Bureau of San Diego, Imperial, and Orange Counties in 2014, as well as winning the honor of being called one of San Diego’s Most Admired Companies from San Diego Metro Magazine in 2014, and as a Family Owned Business Finalist by the San Diego Business Journal during the same year. The firm was also given the title of Business of the Year by the San Diego East County Chamber of Commerce in 2013. Mr. Shamoun’s practice involves federal and state taxation with an emphasis in criminal tax defense, tax controversy, real estate, corporate law, and estate planning.

Mr. Shamoun has extensive experience in representing individuals and businesses before the Internal Revenue Service (IRS), the California Franchise Tax Board (FTB), the California Employment Development Department (EDD), and the California State Board of Equalization (SBOE). The size of the individual amounts in controversy that Mr. Shamoun has either settled or litigated with the IRS and state tax agencies have ranged from a few thousand dollars to over $300 million dollars in other cases. Mr. Shamoun has also successfully defended numerous clients against criminal prosecutions by the federal government and the State of California. He has a sterling reputation with the United States Attorney’s Office and the District Attorney’s Office in multiple jurisdictions, and his firm has a reputation among the taxing entities for being steadfast advocates on behalf of their clients. Mr. Shamoun also served as general counsel for a regional supermarket conglomerate with thirteen stores and was responsible for overseeing legal issues for over eight hundred employees. He is a frequent legal commentator for many media outlets including Fox 5 News, ABC Channel 10 News, KUSI News, and NBC 7 News in San Diego. He is also a frequent contributor to the San Diego Union Tribune, San Diego Daily Transcript and the San Diego Business Journal as a Tax Expert.

Mr. Shamoun is a true San Diegan. He was born and raised in San Diego, California, and completed all of his undergraduate, graduate, and post-graduate studies at the University of San Diego (USD). He earned a Bachelor of Arts (B.A.) in Accountancy at USD, and worked as an accountant before completing his two law degrees. He currently holds a Juris Doctor (J.D.) and a Master of Laws in Taxation (LL.M.) degree from USD. While attending USD, Mr. Shamoun was one of the founding fathers of the USD Chapter of Lambda Chi Alpha Fraternity.

Outside of his law practice, Mr. Shamoun is an active member of the local community. Mr. Shamoun is an elected member of the Ocean Beach Planning Board. He is also the owner of the Junction Steakhouse in El Cajon, the Charcoal House in La Mesa, a convenience store (Newport Quik Stop), and a drive-through coffee/juice bar (Café Bella). Additionally, Mr. Shamoun, through his sizable portfolio of commercial real estate and business investments, has developed a keen sensibility to the legal needs of business owners and investors alike. He is able to provide practical legal advice to individuals seeking tax and business services, or persons considering business or real estate transactions.

Mr. Shamoun currently lives in San Diego with his wife, Melanie, and his daughters, Mariella, Audriana, and Emilia.

For more information, please visit our website:


Languages spoken: English, Arabic

Photos and videos

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Practice areas


  1. Tax: 85%
  2. Business: 5%
  3. Real Estate: 5%
  4. Trusts: 5%



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Stewart Sami Shamon

    I endorse this lawyer.


    Stewart Shamon Personal injury Attorney
    Relationship: Fellow lawyer in community

  • Lisa Nelson

    I endorse this lawyer. Ronnie is extremely passionate when it comes to his clients. He fights for his clients and with the taxing agencies to get to a resolution. He prides himself and his firm on providing superior service, which clients truly appreciate. He also provides practical advice to his clients in addition to tax resolution.


    Lisa Nelson Tax Attorney
    Relationship: Worked for lawyer

Contact info

RJS LAW - A Tax Law Firm

303 A Street
Suite 400
San Diego, CA, 92101


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Torch Award for Marketplace Ethics FinalistBetter Business Bureau of San Diego, Orange, and Imperial Counties2014
Top AttorneySan Diego Magazine2014
Metro MoverSan Diego Metro Magazine2014
Best of the BarSan Diego Business Journal2014
Best AttorneySan Diego Metro Magazine2014
Top Tax AttorneySan Diego Daily Transcript2014
Most Admired CompaniesSan Diego Metro Magazine2014
Young InfluentialsSan Daily Transcript2013
Top AttorneySan Diego Daily Transcript2013
Top Lawyer in San DiegoSan Diego Magazine2013
Top Lawyer in CaliforniaAmerican Lawyer Media2013
AV Preeminent:Excellence in Legal Ability and Ethical PracticeMartindale Hubbell2013
Business of the YearSan Diego East County Chamber of Commerce2013
Top Young InfluentialsSan Diego Daily Transcript2013
Certificate of AppreciationOcean Beach Historical Society2010
Certificate of AppreciationCounty of Sand Diego Special Commendation2010
Certificate of AppreciationOcean Beach Town Council2010
Recognition for Outstanding ServiceOcean Beach Town Council2010
2010 Top Young AttorneySan Diego Daily Transcript2010
2009 Top Young AttorneySan Diego Daily Transcript2009
Work experience
TitleCompany nameDuration
Firm Principal/Supervising AttorneyRJS LAW: The Law Office of Ronson J. Shamoun2003 - Present
Association namePosition nameDuration
Los Angeles County Bar AssociationMember2014 - Present
Orange County Bar Association, Tax Law SectionMember2014 - Present
National Academy of Television Arts and SciencesTreasurer2014 - Present
University of San Diego School of Law Board of VisitorsN/A2014 - Present
East County Chamber of CommerceMember2010 - Present
San Diego Regional Chamber of CommerceMember2010 - Present
San Diego Consumer AttorneysMember2010 - Present
State Bar of CaliforniaMemberN/A
San Diego County Bar AssociationMemberN/A
Legal cases
Case nameOutcome
USA v. SoroReduced to $150,000.00 forfeiture and NO jail time
People of the State of CA v. AyashClient received probation for 3 years and community service
USA v. HuynhReceived 3 years probation and no jail time
See all legal cases 
Publication nameTitleDate
Portfolio Media (Law360)4 Tips To Cash In On IRS Debt Settlement Momentum2014
San Diego Business JournalThe Code Talkers2014
San Diego Business JournalOptions for Minimizing California Business Taxes Are Limited2014
Portfolio Media (Law360)4 Sensitive Audit Areas for S-Corps2014
San Diego Business JournalGovernment's Search for Money Fuels Tax Attorney Work2013
School nameMajorDegreeGraduated
University of San Diego School of LawTaxationLL.M - Master of LawsN/A
University of San DiegoAccountingBA - Bachelor of ArtsN/A
University of San Diego School of LawLawJD - Juris DoctorN/A
Speaking engagements
Conference nameTitleDate
Southern California Tax ProfessionalAppeals, Collections, OIC, & Offshore, IRS & FTB Issues2014
San Diego Daily TranscriptSmall Business Executive Round Table2014
Careers in Tax Law PanelCareers in Tax Law2014
CSTC CLEAudit Techniques2013
USD Tax Panel- Career AdviceTax2012
USDEnterpenuership Planning2012
Continuing Education Presentation for Considine & ConsidineTax Topics: Payroll Tax, Criminal Tax, Collection2012
Careers in TaxCareers in Tax2012
USD Tax Law SocietyCareers in Tax2011
MCLE California Society of Enrolled Agents San Diego ChapterCriminal Tax2011
Speaker at Housing Commission in Chula VistaGeneral Tax Topics2007