Criminal defense for individuals facing serious consequences
Criminal defense for individuals facing serious consequences
Criminal defense for individuals facing serious consequences
Criminal defense for individuals facing serious consequences
Ms. Sosa represents individuals charged in complex state and federal criminal cases, with a focus on getting charges reduced or dismissed through proactive motion practice, rigorous legal analysis, and effective advocacy.
She has over a decade of experience litigating state and federal criminal cases as both a prosecutor and a defense attorney. She has handled cases at every stage of the criminal process, from intial appearances through jury trials and appeals. Her practice has a particular emphasis on legal research, motion practice, and trial and appellate strategy in complex matters. Her work includes extensive litigation in federal cases involving voluminous discovery and complex evidentiary issues.
She is admitted to practice in the Central District of California and to the California and Virginia State Bars.

My practice is grounded in close legal research, careful statutory and case-based analysis, and written advocacy designed to test the government’s case early and often. I assume from the outset that a case may be tried in front of a jury, and I prepare accordingly.
Rather than defaulting to negotiations, I focus on identifying genuine legal and evidentiary issues that can narrow, weaken, or resolve a case. That includes developing dispositive and issue-narrowing motions, challenging charging decisions, and assertively using case law, the rules of evidence, and Constitutional rights as tools, not afterthoughts.
Thorough trial preparation is part of the same work. In complex matters, particularly in federal cases involving voluminous discovery, I spend the time required to understand the record in detail, anticipate the government’s theory, and prepare to defeat it. I also have the tech savvy necessary to understand and weaponize digital evidence that is so crucial in modern white collar cases. That depth of preparation and knowledge informs every strategic decision, whether a case ultimately resolves or proceeds to trial.
I am selective in the matters I take on and frequently collaborate with co-counsel to bring focused research, writing, and strategic support to trial teams and appellate matters.
Copyright © 2026 Law Office of Karen M. Sosa - All Rights Reserved.
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.