619-535-7150 / 760-932-0179


Vincent R. Ross

Supervising Attorney & Chief Trial Attorney

Vincent Ross was born in Asheville, NC in 1956. He grew up in the mountains of Western North Carolina and became an avid hunter, fisherman and outdoor enthusiast. He attended the University of North Carolina at Asheville and graduated with a degree in philosophy. During school he lived and worked on tobacco farms, saving money for his eventual move to California to go to law school.

Before attending law school, Mr. Ross was involved in numerous projects sponsored by various groups advocating for First Amendment and other civil rights issues. For a number of years he worked as a volunteer for the ACLU and NORML. During this time his passion for the defense of the constitution was incubated resulting in his decision to attend the University of San Diego School of law in 1984.

After graduating from law school in 1987 and passing the California bar examination on the first attempt, Mr. Ross practiced with a large national law firm whose client base was comprised primarily of insurance companies and affiliated entities. After a few years, he realized that his true calling was in the field of criminal defense. Shortly after leaving the big firm he started his own practice which has continued to the present day.

Over the course of almost three decades in practice, Vincent Ross has defended thousands of clients in cases which have encompassed everything from driving on a suspended license to pre-meditated murder. Many of the cases he has defended have been groundbreaking or have had a significant impact on the evolution of criminal law in California. Mr. Ross has been featured on the front page of the New York Times and has been interviewed or chronicled by Dateline, 20-20 and numerous other local and national media.

The lawyers at San Diego DUI Attorney are  a team of legal professionals that have one mission: To zealously defend the rights of our clients. Our combined decades of experience along with our single focus on criminal defense sets us apart from the rest of the pack. At San Diego DUI Attorneys you will receive the undivided attention of our staff of lawyers and allied professionals. We pride ourselves on providing a level of customer service that is unparalleled in the community. And, we get results.

If you want the best for yourself or loved one in field of criminal defense, contact our office for a no-cost no obligation consultation.

Thomas J. Beck

Tom Beck

Thomas J. Beck, Director of Operations

Mr. Beck joins San Diego DUI Attorneys as the Senior Executive and Director of Client Operations.  Mr. Beck has spent nearly 20 years as an industry leader with one of the largest consumer law firms in Arizona. Mr. Beck joins San Diego DUI Attorney’s defense team bringing a dedication of excellence that consistently exceeds client’s expectations, through tenacity and hard work that people have grown to know and trust at San Diego DUI Attorney.  Mr. Beck has limited his professional consultations to Criminal Defense and DUI only.   Mr. Beck is a critical member in DMV hearing process as well.  Mr. Beck has argued DMV cases both in person and telephonically.  His area of expertise focuses on all the major elements of the DMV process and provides the most aggressive defense in helping clients who are facing a DMV suspension. 

At San Diego DUI Attorney, we make certain that each client is given the best in customer service and we are available to clients at all hours of the day and every day of the week. We strive to make each client feel like our only client and we promise to take the time and listen carefully about your case and work as a team to get the best result as possible.

Sami Haddad

Attorney of Counsel

Sami Haddad is licensed to practice law in the State of California and in United States Southern District Court of California. Sami represents family law and criminal law clients throughout California.

Before joining the Ross Law Center, Sami owned his own law practice, emphasizing issues in criminal law, family law, and both Civil and Domestic Violence Temporary Restraining Orders. Sami handled all client intakes and consults, and received top reviews from each of his clients, who emphasized his empathy, listening skills and command of the attorney-client relationship.

Sami was previously the managing attorney for The Curran Law Firm, where he handled complex issues in criminal law, DUI and family law. Sami managed a staff of three attorneys, and six interns, providing them with legal tasks and coordinating the firm’s strategy. Prior to managing The Curran Law Firm, Sami was an associate litigation attorney with the firm of Lee, Shome & Kennedy.

Before graduating from California Western School of Law with a Juris Doctorate with Honors in Business Law, Sami had broad experience in criminal law, civil litigation and family law. Among other things, he was a law clerk for the Office of General Counsel for Space and Naval Warfare Systems Command (SPAWAR).

Sami is a first time bar passer. While attending law school, Sami was the Editor-in-Chief of the Commentary, California Western School of Law's only student-run newspaper. During Sami’s tenure as its Editor-in-Chief, the American Bar Association nominated the Commentary as Best Law School Newspaper in the Nation.

Before attending California Western School of Law, Sami attended the University of California, Los Angeles, graduating with a degree in Economics and a minor in Political Science.

Sami was born and raised in Point Pleasant, New Jersey. His father and mother are in the Navy and he moved to San Diego in 2007.

Sami is a member of the Italian National Bar Association, the San Diego Bar Association and the American Bar Association. He is a member of the San Diego Volunteer Lawyers Program and the Community Law project, giving back to his community and providing the indigent with free or low cost legal services. In his free time, Sami enjoys poker, watching sports, cooking, and playing chess.

Paul Guillory

Attorney of Counsel

Paul Guillory has joined the San Diego DUI Attorney Law Firm. His duties include reviewing each party’s case to decide if and how the firm can best address the client’s needs. Prior to practicing law, Paul served four years as a United States Marine. He was honored to participate in Operation Enduring Freedom with two deployments to Afghanistan.

Paul could never have foreseen the wide-ranging impact military service would have on his life. Working with patriotic Americans from across the country would forever change him. The experience inspired him towards a life of helping veterans make the transition to civilian life and helping to ensure they are never without a support network. This approach to service has carried over into his legal career. Paul views law as a calling requiring high standards of care and commitment.

Upon completion of his active duty time in the military, Paul attended law school at California Western School of Law in San Diego. After achieving the top grade in criminal law, he secured an opportunity to intern with the Office of the City Attorney’s Criminal Division—General Trial Unit. There, he conducted restitution hearings, recovering favorable results for the people. He learned the critical skill of negotiating settlements between the State and the defendants called before it.

Paul saw that our system is predicated upon both parties zealously pursuing their position and that good results are limited only to what is negotiated. After passing the California bar exam, Paul attended the University of San Diego School of Law where he received his LL.M. in the law of taxation. Here again he learned about the complexities of government rules, regulations, and enforcement; as well as the necessity of diligent care when dealing with any law enforcement agency. Paul believes that our system of government, law, and order works best when individuals mount a zealous defense of their rights—a defense which begins with obtaining the proper counsel.

Meet us for a no-cost consultation to review your case and determine your options and how to proceed.

Brandon Naidu

Attorney of Counsel San Diego, D.M.V. Hearing Expert

Attorney Brandon S. Naidu received a Bachelor’s degree and a Master’s degree in Economics from the University of Utah, and received his law degree from California Western School of Law. During law school, Mr. Naidu received an Academic Excellence Award which is the highest grade in his class for legal research, writing, and professional skills. Additionally, Mr. Naidu was a law clerk to some of San Diego’s best criminal defense and DUI attorneys where he gained extensive experience in DMV license hearings and appeals, and also worked with several local pro bono clinics, including the Community Law Project and Legal Aid Society.

As an attorney for the San Diego DUI Attorney Law Firm, Mr. Naidu oversees all DMV-related matters, handling administrative per se hearing, departmental reviews, and judicial review. Mr. Naidu has extensive experience with the DMV process and assisting clients with their driver’s license needs. Mr. Naidu does not apply a “cookie-cutter” approach when it comes to the DMV because he knows that each case is different and unique and requires careful handling and control.

In certain cases, the DMV’s decision to suspend a person’s driving privilege can be appealed directly to a court of law. This is a complex and difficult process that requires intense research, legal writing, and court appearances. Mr. Naidu possess very strong research, writing, and argument skills that have been very beneficial to drivers facing license suspension. Mr. Naidu crafted and honed these skills during both his Master’s and law school education, and continues to work hard to provide excellent service for our clients.

Richard Silber

Senior Legal Administrator

Richard Silber is a lifelong Californian with over 30 years of client services experience. After graduating from the University of California, San Diego with pre-law degrees in Philosophy and Political Science. Mr. Silber began his professional career in client services by taking customer facing positions in the technology industry.

Mr. Silber has filled client services position in both inside and outside of the legal community. Though his career has taken him into different industries, the constant has always been putting the client’s needs first and foremost. This philosophy has made Mr. Silber a perfect fit for the firms role as a legal administrator, where our clients’ best interest is job number one. His responsibilities vary at our firm, but all of them revolve around exceeding our clients’ expectations.


Private Investigator of Counsel

Kevin Roncevich served honorably in the United States Navy from 1997 – 2001. While stationed in San Diego, California, Mr. Roncevich was deployed twice (Onboard the USS Abraham Lincoln) to the Persian Gulf in support of operation Southern Watch. During the 1998 deployment, the USS Abraham Lincoln carrier battle group launched Tomahawk cruise missiles against two sites. The first was a Sudanese pharmaceutical factory suspected of assisting Osama Bin Laden in making chemical weapons. The second was Bin Laden's terrorist training camps in Afghanistan. These strikes were ordered by President Clinton thirteen days after terrorists bombed the US embassies in Kenya and Tanzania and was codenamed Operation Infinite Reach. While serving in the US Navy, Mr. Roncevich received several awards / recognitions.

Personal Accomplishments / Awards:

• Sea Service Deployment Ribbon (2)
• Armed Forces Expeditionary Medal (2)
• Meritorious Unit Commendation (2)
• Good Conduct Medal
• Coast Guard Unit Commendation with Operational Distinguishing Device
• Battle “E” Award
• Flag Letter of Commendation
• Navy Achievement Medal
• Letter of Commendation from Rear Admiral, United States Navy
• Sailor of the Month
• Junior Sailor of the Month
• Letter of Appreciation from Commanding Officer HS-4
• Letter of Commendation from Commanding Officer HS-4

After serving honorably in the US Navy, Mr. Roncevich attended the Golden West Police Academy (Huntington Beach, CA) from November 2001 – April 2002. Due to Mr. Roncevich being at the top of his class, he was hired by the Cypress Police Department in February 2002. As a police officer with the City of Cypress, Mr. Roncevich was worked as a patrol officer, training officer, SWAT team member and a criminal investigations detective. Mr. Roncevich has approximately 2,000 hours of formal training, as well as thousands of additional on the job training. Mr. Roncevich has also attended / completed hundreds of hours of advanced officer training, some of which are listed below.

Patrol Officer – As a patrol officer, Mr. Roncevich provided for public safety by maintaining order, responding to emergencies, protecting people and property, enforcing motor vehicle and criminal laws, and promoting good community relations. Identify, pursue, and arrest suspects and perpetrators of criminal acts. Patrol officers shall review facts of incidents to determine if criminal acts (state and federal) or city municipal violations were committed. Part of the job of a patrol officer is to testify in court to present evidence or act as witness in traffic and criminal cases. Mr. Roncevich often had to process prisoners, prepare and maintain records of prisoner bookings and prisoner status during booking and pre-trial process.

Training Officer – As a training officer, Mr. Roncevich was responsible to train / evaluate new officers to insure that they can work unaccompanied in a safe, skillful, efficient and professional manner. The new officer is assessed on performance (including but not limited to report writing, knowledge of city, state and federal laws, driving skills and officer safety), improvement and overall conduct.

SWAT Team Member – As a SWAT team member, Mr. Roncevich responded to SWAT “callouts”, which were most commonly used in order to ensure the safety of other police officers in case a large, violent outburst occurs. These situations include the arrests of violent criminals, hostage situations, riots, counter-terrorism, perimeter security, identifying threats in high-security situations and many other police situations where the safety of the public or police officers is in danger. As part of the West County SWAT Team, Mr. Roncevich also carried out high risk search/arrest warrants. Mr. Roncevich’s primary position on the SWAT Team was the breacher, responsible for breaching the structure in question to allow the entry team access to the structure in question.

Criminal Investigations / Detective – Mr. Roncevich was a criminal investigator for 4 years. While a police detective, Mr. Roncevich worked on fraud cases (including but not limited to identity theft, fraudulent use of access cards, etc.) property crimes (including but not limited to burglary (residential and vehicle), vandalism, theft, etc.) as well as crimes against persons (including but not limited to sexual assault cases, domestic violence, robbery and homicide). As a detective / investigator Mr. Roncevich’s job tasks included performing regular investigations for all crimes and establishing appropriate witnesses and suspects, maintaining knowledge on all factual requirements, coordinating with the crime lab team to perform various tests on evidence collected from scene and monitor all conditions of victims and assist to obtain all required statements. Mr. Roncevich also worked directly with the district attorney’s office to build strong cases for jury trials. Writing search warrants, meeting with the district attorney to review the search warrant and meeting with a judge to review and sign the search warrant was a common occurrence as a police detective / investigator. As a police investigator / detective, Mr. Roncevich also spent hundreds of hours conducting undercover surveillance operations following suspects involved in criminal activities (including but not limited to narcotics and homicides). Mr. Roncevich spent hundreds of more hours conducting static surveillance on locations in preparation for search / arrest warrants. As a lead investigator, Mr. Roncevich would oversee a group of detectives / investigators and often times outside law enforcement (FBI, DOJ, Secret Service, etc.) to work complex cases. This involved overseeing and managing up to 25 other law enforcement professionals.

Personal Accomplishments / Awards:

• Gold Distinguished Service Medal – Awarded for heroism and bravery displayed during an officer involved shooting of an armed robbery suspect.
• Letter of Commendation – From the Orange County District Attorney’s Office during my investigation of a high profile case.
• Letter of Commendation – Following bank robbery that resulted in a vehicle pursuit with the apprehension of the “Cash and Carat” bandits.
• Letter of Appreciation from Los Alamitos Chief of Police for apprehension of suspects who fled from officers.
• Formal recognition from the Cypress Chief of Police for the apprehension of an illegal narcotic suspect who fled from officers.
• I designed and implemented a new “department wide” form that is used when investigating subjects under the influence of illegal narcotics.
• Letter of Appreciation from American Rentals for Solving a Complex Theft Case Involving Industrial Equipment.
• Letter of recognition from the Cypress Chief of Police for “team effort and dedication” with regards to a large scale search for a robbery suspect.
• Letter of recognition from the Cypress Chief of Police for the successful apprehension of several felony vandalism suspects who were unable to escape due to “planned approach that thwarted any escape.”
• Letter of recognition from the Cypress Police Narcotics Sergeant regarding a confidential informant referral that resulted in a search warrant service, resulting in the arrest of two subjects, for a large amount of methamphetamine, packaging material, scales, paraphernalia and a firearm.

Advanced Officer Training:

• Criminal Investigations – Riverside County Sheriff’s Department
• Courtroom Testimony – Riverside County Sheriffs’ Department
• Advanced Interview and Interrogation – Riverside County Sheriff’s Department
• Child Abuse / Sexual Assault – Riverside County Sheriff’s Department
• Homicide Investigation – Orange County Sheriff’s Department
• Elder Abuse Investigation – Orange County Sheriff’s Department
• Drug Abuse Recognition – California Narcotic Officer Association
• Search Warrant Instructions – San Bernardino County Sheriff’s Department
• Emergency Response To Terrorism Incidents – Orange County Sheriff’s Department
• Certificate of Training in the Identification Of Counterfeit Digital Video Disc (DVD) – The Motion Picture Association Of America, Inc.
• Vehicle Theft – Orange County Sheriff’s Department
• Identity Theft – San Diego Regional Training Center
• Alcohol Sensor Device Certified – Orange County Sheriff’s Department
• Certified in the Lawful Interception of Wire and Electronic Digital Pager or Electronic Cellular Telephone Communications – State of California Department of Justice
• DNA Evidence Collection – City of Cypress
• Certified with the QUICKCHECK Narcotic Identification Kit
• Training on the PENI Street Gang (Public Enemy Number One) – The Southern California Skinhead Task Force & The Orange County Training Managers Association

In 2013, after receiving a retirement from the Cypress Police Department, Mr. Roncevich started a private security firm. As a business owner / vice president, Mr. Roncevich was tasked with developing a business plan that includes a description of the product or service, how to finance the business (loans, investors), deadlines for the business and the overall goal. Mr. Roncevich’s duties include reviewing sales reports and financials, and comparing them to goals set out in short- and long-term plans. Mr. Roncevich was also tasked with reviewing profit-and-loss statements and other financial reports related to the company balance sheet. As a business owner other duties / responsibilities include (but not limited to) identify problems, make decisions, interpret results based on quantitative techniques and improve quality and productivity by streamlining systems and processes. Below are some of Mr. Roncevich’s personal accomplishes as well as the accomplishments of the company.

Personal Accomplishments:

• Accountable for the direction and successful operation of the Sales Division / Operations Division of the company which resulted from zero revenue from the start of the company to over 4 million dollars by the end of year three. Part of my accomplishment was forecasting a sales growth of 5.5 million by the end of year four, while maintaining a 40 percent profit margin and 150 employees company-wide.
• Directly responsible for the purchasing, deployment and maintenance of 35 patrol vehicles into the company fleet.

Company Accomplishments:

• Orange County Business Journal – Named the second fastest growing small business within Orange County, CA.
• San Jacinto School District Certificate of Recognition for service to the community.

In 2015, while owning the private security firm, Mr. Roncevich opened up a Private Investigations Firm. As the owner and private investigator, Mr. Roncevich worked Criminal / Civil Defense Investigations, AOE/COE Investigations, Welfare / Insurance Fraud as well as provide expert witness testimony.

While being very busy during a professional career, Mr. Roncevich has still found time to continue his professional education and obtain professional licenses, see below.

• 55+ General Education units from Cypress College, Golden West College and Coastline Community College
• Basic Peace Officer Standards and Training certificate
• Intermediate Peace Officer Standards and Training certificate
• Advanced Peace Officer Standards and Training certificate
• Private Patrol Operator – Bureau of Security and Investigative Services
• Private Investigator – Bureau of Security and Investigative Services
• Guard Card – Bureau of Security and Investigative Services
• Certificate of Completion Used Vehicle Pre-Licensing Education Program


Christopher Vaughan

Department of Motor Vehicle Specialist

Chris Vaughan joins the team at San Diego DUI Attorney as the firm’s expert in the DMV administrative proceedings. Mr. Vaughan has focused his entire career in assisting the clients of San Diego DUI Attorney whose livelihood and/or careers are tied to their ability to operate a motor vehicle. From pilots to Commercial Truck Drivers, Mr. Vaughan works very close with each client in developing a personal strategy as it pertains to the administrative law process of the DMV. Mr. Vaughan has been recognized in the Southern California legal community as an expert in the process of DMV hearings. Mr. Vaughan has handled issues ranging from DUI suspensions to license revocations and his tenacity and creative approaches to each client’s case set him apart as an expert in the DMV hearing process. Chris Vaughan’s success representing drivers against the DMV is a product of his experience, knowledge and reputation. Chris has conducted well over 1,000 administrative hearings and has assisted in several successful Writs of Mandamus, which is an appeal in civil court where the driver sues the DMV for wrongfully suspending the license after a hearing. In order to succeed against the DMV, Chris exhaustively studies the statutes, codes and case law that govern the administrative hearing procedures. Chris’ constant presence at the Driver Safety Office over the years enabled him to foster positive working relationships with the various personalities involved in the process and he has gained an intimate knowledge of the constantly evolving practices and idiosyncrasies of the DMV. Chris is skilled in handling numerous types of suspension actions including DUI (“APS”), negligent operator (“Neg Op”), physical and mental (“P&M”), lack of skill, financial responsibility (“FR”), fake IDs and both regular and emergency re-examinations. Chris is proud to represent his clients, who find him friendly, sympathetic, savvy and highly accessible.

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