Personal Injury
Representation for people harmed by negligence, dangerous conduct, unsafe conditions, and preventable incidents.
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The Law Offices of Sonia Pérez Chaisson
Strategy for the cases that demand more.
Civil trial lawyer and trial strategist representing injured people and clients facing complex legal disputes. Every case receives direct attention, careful preparation, and a strategy built around the evidence and the client’s story.
31+Years licensed
9.4Avvo rating
5.0Client reviews
Trial ReadyPreparation designed to create leverage before and inside the courtroom.
California Trial CounselLicensed since 1995
English & SpanishDirect client communication
Complex Case StrategyEvidence, experts, and trial themes
Personal AttentionEvery matter is individually prepared
Practice Areas
Focused advocacy for serious legal matters.
Representation and strategic consulting for matters where evidence, credibility, damages, and courtroom preparation can determine the result.
Medical Malpractice
Evaluation and litigation of claims involving medical errors, delayed diagnosis, surgical injury, and failures in the standard of care.
Discuss Your Matter →Wrongful Death
Strategic representation for families seeking accountability and compensation after a preventable death.
Discuss Your Matter →Civil Litigation
Case development, motion strategy, negotiation, and trial preparation in high-stakes civil disputes.
Discuss Your Matter →Criminal Defense
Selected criminal matters requiring careful factual analysis, direct advocacy, and courtroom readiness.
Discuss Your Matter →Trial Consulting
Case theory, voir dire, witness preparation, narrative development, and strategic support for trial teams.
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“A strong trial strategy makes a complicated case understandable, credible, and human.”Approach to advocacy
About Sonia
Experience shaped by trial work.
Sonia Pérez Chaisson has practiced in California since 1995. Her work is centered on civil trials, personal injury, medical malpractice, and strategic case development. She is known for translating complicated facts into a clear, persuasive case story and for communicating directly with clients throughout the process.
In addition to representing clients, Sonia has served the trial-lawyer community through teaching, speaking, publications, and collaborative case strategy.
EducationNortheastern University School of Law
JurisdictionState of California
LanguagesEnglish and Spanish
Core StrengthTrial strategy and case development
Trial Strategy
Preparation begins long before the courtroom.
A persuasive result is built through disciplined investigation, a coherent case theory, credible witnesses, strong evidentiary support, and the ability to explain why the facts matter.
Understand the Evidence
Organize records, chronology, witnesses, expert issues, damages, and the opponent’s likely positions.
Develop the Case Theory
Define responsibility, causation, damages, defenses, and the central themes that will guide the case.
Prepare for Pressure
Anticipate the opponent’s arguments, prepare witnesses, and create leverage through disciplined trial preparation.
Advocate With Clarity
Present the evidence in a direct, credible, and understandable way—at negotiation, mediation, hearing, or trial.
Experience & Leadership
Built through decades of trial work.
31+ YearsLicensed and active in California since June 1995.
AAJ LeadershipProfessional involvement with the American Association for Justice.
Million Dollar Advocates ForumProfessional affiliation listed in public attorney profiles.
Trial EducationSpeaker and author on voir dire, trial strategy, and civil advocacy.
Client Feedback
Known for strategy, responsiveness, and care.
Public reviews consistently describe clear communication, strong advocacy, practical advice, and personal attention.
★★★★★
“She quickly understood the value of a complex injury case and developed a strategy that led to a result far beyond expectations.”
★★★★★
“Thorough, responsive, and able to explain difficult legal issues in language the client could understand.”
★★★★★
“Professional, compassionate, and committed to giving every client’s matter the attention it deserved.”
Legal Insights
Clear guidance for complex legal decisions.
Recent articles about evidence, trial preparation, personal injury claims, and the decisions that can shape a serious case.
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Phone: (310) 773-8788
Email: chaissonlawfirm@gmail.com
Office: Santa Monica, California
Languages: English & Spanish