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MITRA KARIMI completed her undergraduate degree at the University of California Irvine (UCI) where she received a Bachelor of Arts in English and Sociology. After receiving her Juris Doctorate Degree in 2005, she was admitted to the California State Bar immediately following.


Ms. Karimi began her law career by completing an internship at the District Attorney’s office in Ventura County and continued on to several renowned Civil Litigation Defense firms in Los Angeles. She was solely responsible for handling and litigating complex Labor and Employment disputes including wrongful termination, defense of employment contracts, claims of harassment, and dispute resolution.

Ms. Karimi has been practicing Workers’ Compensation and Labor and Employment Defense for the past 13 years representing employers, insurance companies, self-insured entities, and uninsured employers in all litigation matters. Her dedication and perseverance results in resolution of claim in an efficient and timely manner.



ANEETA MISHRA received her Bachelor of Arts in Political Science and Bachelor of Science in Biology degrees from University of California, Irvine. She received her Juris Doctor degree from Western State University College of Law in Fullerton, where she graduated cum laude; served as Editor of the Law Review; recognized for outstanding academic achievement, earning a spot on the Dean’s Honor Roll for four out of six semesters; and received a Witkin Award for Academic Excellence in Negotiations. Ms. Mishra was admitted to practice in California in 2006.


Ms. Mishra is a Partner at Samuelsen, Gonzalez, Valenzuela & Brown. She represents insurance carriers, self-insured employers and public entities in all aspects of workers’ compensation defense. She currently works out of the firm’s Newport Beach office.

Before joining the firm as a Partner, Ms. Mishra worked as a Counsel at another defense firm in Fullerton; Managing Partner at Samuelsen, Gonzalez, Valenzuela & Brown in its Encino office, and Associate at the firm’s Newport Beach office; Staff Counsel at a private equity consulting firm in Los Angeles; and In-House Counsel at Liberty Mutual Insurance Co. in San Bernardino.


The Rate of Terminal Nucleotide Loss from a Telomere of the Mosquito Anopheles Gambiae, Insect Molecular Biology Journal (2001), M. F. Walter, L. Bozorgnia, Aneeta Mishra and H. Biessmann.



PRISCILLA SHIRKHANLOO graduated Cum Laude from the University of California, Los Angeles in 2007 with a Bachelor of Arts in History and a minor in Middle East and North African Studies. She continued on to receive her Juris Doctorate from Chapman University Law School in 2012 where she was in the top 16% of her class. Ms. Shirkhanloo was admitted to the California State Bar in 2012.


Before joining the Law Offices of Samuelsen, Gonzalez, Valenzuela & Brown, LLP, Ms. Shirkhanloo was a Supervising Attorney for a large defense firm in Orange, representing clients in all aspects of workers’ compensation defense. While Ms. Shirkhanloo attended law school, she started her career as a Law Clerk for Paris Law Group. There, she drafted legal documents on various issues in civil law, including worker’s compensation and employment discrimination. Ms. Shirkhanloo also conducted legal research and writing projects. During the summer of her second year and throughout her third year of law school, Ms. Shirkhanloo was a Law Clerk for Lanak & Hanna. There, she wrote memoranda and Motions for construction matters; complied reports and graphics of the firm’s findings to be used during expert witness testimony; and drafted and responded to discovery.


  • Dean’s Honor List, 4 quarters, UCLA
  • CALI Excellence for the Future Award for Property II
  • L.S. Palmos Award, 2012, Chapman Law School
  • OCBA Barbri Law Review Scholarship Recipient, 2012, Chapman Law School
  • Certificate in Environment, Land Use and Real Estate Law, 2012, Chapman Law School

Ms. Shirkhanloo joined the law offices of Samuelsen, Gonzalez, Valenzuela & Brown, LLP as a Partner 2017 where she handles Workers’ Compensation Defense in our Newport Beach office.



Suneet “Sunny” Shrivastava graduated with honors from the University of California, Irvine with a Bachelor of Arts degree in Criminology, Law, and Society. He went on to pursue his Juris Doctor at the University of San Francisco School of Law. Directly following graduation, Mr. Shrivastava was admitted to the California State Bar.


Mr. Shrivastava has 14 years of experience as a Workers’ Compensation Defense Attorney. He is a highly knowledgeable and seasoned attorney known for his impressive settlement rate on multiple Fortune 500 companies. He has managed a caseload of workers’ compensation, 132 (a), and serious and willful claims. Moreover Mr. Shrivastava has an aggressive “client first” approach to handling files with a primary focus on consistent communication. Over the years, he has gained a loyal clientele, is a Panel Attorney for numerous Fortune 500 companies, municipalities, and permissively self-insured employers. He has successfully organized multiple bulk settlement conferences and routinely organized client presentations based on relevant case law.

Samuelsen, Gonzalez, Valenzuela and Brown is pleased to have Mr. Shrivastava in our Corona Office.



Justin Singerman is a certified specialist in Workers’ Compensation law. Mr. Singerman obtained his Bachelors of Arts in Political Science from UCLA in 2004. He continued on to receive his Juris Doctorate from Southwestern University School of Law in Los Angeles in 2008, where he was a member of Association of Trial Lawyers of America. Mr. Singerman was admitted to the California State Bar in 2010.


Mr. Singerman has practiced defense Workers’ Compensation since June 2010. Mr. Singerman began his legal career as a law clerk at the Los Angeles City Attorney’s Office. After being admitted to the California State Bar, Mr. Singerman was recruited by a large, busy, Workers’ Compensation defense firm, where he received recognition as an attorney with the highest file closures. Mr. Singerman has obtained multiple “Take Nothings” on case-in-chief and lien trials. He is a seasoned litigator, who has had much success settling cases early by way of Compromise and Release. Mr. Singerman is a favorite among clients with his creative thinking, quick responsiveness, and attention to detail.

Samuelsen, Gonzalez, Valenzuela & Brown is pleased to have Mr. Singerman as Managing Partner in our Encino office.



Katherine Ocampo received a Bachelor’s of Science degree from The University of Nevada, Las Vegas and her Juris Doctor from Western Sierra School of Law in San Diego, CA.

While attending law school Ms. Ocampo was the Vice President of the Student Bar Association, President of the Western Sierra School of Law Student La Raza Association, and Writer and Editor of the Student Newsletter. She also was a Certified Legal Intern with the San Diego Public Defender’s office where she had an opportunity to conduct several criminal trials.


Mrs. Ocampo started her career at the San Diego Superior Court as a small claims legal advisor, where she advised on claim filing, enforcing judgments, and assisted litigants with drafting motions and executing contracts.

Since passing the California State Bar in 2007, she has achieved remarkable success in all phases of Workers Compensation litigation. Ms. Ocampo’s expert knowledge in case law, MPN regulations, Labor Code, and most recently SB 863 has led to her trial over 35 times with favorable decisions, including a complete take nothing on a case-in-chief of an AOE/COE denied claim. Her countless rewarding outcomes and admiration from clients have led her to be appointed as a panel defense attorney for multiple Fortune 100 companies.

Mrs. Ocampo was elected Lead Project Manager for a large insurance company where she over saw 600 active cases firm wide. She is exceptionally experienced in drafting trial briefs, Petitions for Reconsideration, and Writ of Review. Her experience has also allowed her to assist and train other associates. Mrs. Ocampo has also served as a Judge Pro Tem.

She is an active member in many of the Workers’ Compensation employer advocacy organizations such as, The Employers Task Fraud Force, The Claims & Litigation Management Alliance, and Workers Compensation Central. She is also a member of the Hispanic National Bar Association, The Lawyers Club, and San Diego La Raza. Ms. Ocampo is also fluent in Spanish.

Not only is Ms. Ocampo an incredible asset to Samuelsen, Gonzalez, Valenzuela & Brown, but she is tremendous benefit to all the employers, insurance carriers, and TPAs she works with.



TINA M. KESTEN obtained her Bachelor of Arts Degree from the University of California, Santa Cruz, majoring in History with Honors. She received her Juris Doctor from the Southwestern University School of Law in Los Angeles, California.


Ms. Kesten served as a Paralegal Instructor prior to becoming an attorney. Ms. Kesten practiced as an applicant attorney for more than three years in Workers’ Compensation for a large firm where she handled 132(a) discrimination complaints and Serious and Willful violations as well. Her background in applicant work has given her the knowledge and skill to practice Workers’ Compensation Defense aggressively. She now solely represents large employers, third party administrators and insurance companies in Workers’ Compensation for all Southern California boards. On the weekends, she devotes her time to being team mom for her daughters’ OC Allstar dance team as well as helping her son coordinate various charity activities through his service organization. Ms. Kesten joined the Newport Beach office of Samuelsen, Gonzalez, Valenzuela and Brown in 2008.



Undergraduate, California State University at Long Beach, Bachelor of Arts in Political Science, 1973-1978

Graduate, Southwestern University School of Law, Juris Doctor, 1978-1981, Admitted to California Bar 1981


Mr. Marmer specializes in the following practice areas: Defense of employers and carriers in workers’ compensation claims arising under the Longshore and Harbor Workers’ Compensation Act (LHWCA), the Outer Continental Shelf Lands Act, the Defense Base Act (DBA), the War Hazards Compensation Act, as well as representation of employers and carriers in civil subrogation claims arising under the Jones Act, the Federal Maritime Law, and Suits In Admiralty Act.

Mr. Marmer also practices defense of workers’ compensation claims arising under the California Labor Code as well as representing employers and carriers pursuing civil subrogation in the California Superior Courts.
Mr. Marmer has jury, and administrative trial experience in the U.S. District Courts, California Superior Courts, the U.S. Office of Administrative Law Judges, and before the Workers’ Compensation Appeals Board of California.


Speaker: Longshore Claims Association, Attorney fee issues under the Longshore and Harbor Workers Compensation Act, and Defense Base Act, arising within the jurisdiction of U.S. Ninth Circuit Court of Appeals. San Diego, CA 2012.

Speaker: Hearing Loss Claims under the Longshore and Harbor Workers Compensation Act; National Association of Waterfront Employers, West Gulf Maritime Association, June 2014.

Speaker: Hearing Loss Claims under the Longshore and Harbor Workers Compensation Act, Longshore Claims Association, Annual Conference 2014. Newport Beach, CA.

Speaker: Workers Compensation Institute; Defending Employers and Carriers in foreign nationals’ claims arising under the Defense Base Act. Orlando, FL August 2018.

Speaker: Work Comp Central Annual Seminar; Civil Subrogation: Employers Rights, Remedies, and Litigation Strategies. May 2019.

Member: Joint Department of Labor Bar Association which is a Claimant and Defense counsel bar regarding practices and procedures under the LHWCA and DBA of claims before the federal Office of Workers Compensation Programs, and the federal Office of Administrative Law Judge.



ROBERT R. CAMPBELL, II graduated on the Deans Honor Roll for all semesters from California State University, San Bernardino in 1991 with a Bachelor of Arts in Political Science and Minor in Psychology. Mr. Campbell received his Juris Doctor from University of Laverne, College of Law, in 2004 with an American Jurisprudence Award in Criminal Law.


Mr. Campbell has over 21 years of experience handling Workers’ Compensation. He started his career as a Hearing Representative, Vocational Rehabilitation Coordinator and Paralegal. Thereafter, Mr. Campbell became a Managing Attorney where he operated and managed an office in the Riverside area and concurrently handled the case management of over 1000 Applicants from case inception to settlement and/or trial. Mr. Campbell also served as a Senior Associate Attorney where he had daily appearances at numerous Workers’ Compensation Appeals Boards including: San Bernardino, Riverside, Pomona, Anaheim, Santa Ana, Van Nuys, Marina Del Ray, Los Angeles, Long Beach and San Diego. Mr. Campbell has settled 1000’s of cases, taken over 500 depositions throughout his career and filed numerous Petitions for Reconsideration resulting in persuasive law. Mr. Campbell has a winning record in the courtroom and in ADR proceedings based on strong capabilities in preparing expert witnesses for court testimony. With Mr. Campbell’s extensive experience as an Applicant Attorney, he understands how to most thoroughly represent Employers, Insurance Companies and third party administrators on their Workers’ Compensation claims.

Mr. Campbell brings great knowledge and experience to the firm. He joined the law office of Samuelsen, Gonzalez, Valenzuela and Brown as an Associate in 2010 and is currently a partner where he handles Workers’ Compensation Defense in our Newport Beach office.



BROOK A. ADAMS received her Bachelor of Arts Degree in Economics from University of the Pacific, California. She received her Juris Doctor from Western State University College of Law in Fullerton, California and was admitted to the State Bar the following year.


Ms. Adams began her career as a legal assistant where she specialized in intellectual property, patent and trademark law. She managed transcribing dictation, appeared in court, reviewed motions, and maintained client correspondences. During this time, Ms. Adams also worked a legal intern and learned the overall litigation process of contacting and prepping witnesses for trial, assisting the lead attorney during trial, presenting evidence to the courts, and drafting various legal documents including motions, discovery responses, and retainer agreements.

Since then, Ms. Adams has exclusively practiced Workers’ Compensation law and has gained notoriety for her extreme success with early settlement. Over the years, she has adopted an aggressive strategy and is a skilled negotiator. Ms. Adams possesses a careful attention to detail, which is demonstrated in her solid arguments in court. Growing up in Fresno, CA, it is only fitting that Ms. Adams is now our Managing Attorney in that office. Furthermore, her relations prove strong in these venues and she is well acquainted with the Fresno and Bakersfield Boards. Ms. Adams is a veteran attorney who is well versed in all areas of litigation, including directing depositions, appearing at court proceedings (including trials), and negotiating a variety of settlement agreements.

Samuelsen, Gonzalez, Valenzuela & Brown is pleased to have Ms. Adams as Managing Attorney in our Fresno office.