Olga Siamionava-Muzio


Olga Siamionava-Muzio is a Partner at Dell & Dean. She is an experienced, result-oriented litigator who aggressively pursues her clients’ claims to achieve the best possible results. She focuses her practice on pursuing recovery for personal injuries and wrongful death sustained in construction site accidents and on negligently maintained premises. Ms. Siamionava-Muzio is highly proficient in prosecuting all aspects of complex legal matters. Her efforts throughout her career have resulted in millions of dollars in settlements for her clients, including multiple seven-figure recoveries.

Prior to joining Dell & Dean in 2019, Ms. Siamionava-Muzio worked on a variety of personal injury and medical malpractice matters, representing numerous individuals who sustained significant losses to negligence of others. She also interned for the Honorable Jeffrey S. Sunshine in King County Supreme Court. This experience allowed her to obtain insight from a judicial perspective as to how to properly prepare and prosecute various civil litigation matters.

Throughout her legal career, Ms. Siamionava-Muzio has earned a reputation of a passionate and persistent advocate. She is a skilled negotiator with a proven record of success at mediations and pre-trial settlement negotiations.

As a Member of the Dispute Resolution Society, Olga has earned her certification as a mediator. Olga is a member of Multilingual Legal Advocates Group. Olga’s fluency in several languages has helped her gain the trust and comfort level with clients of multiple backgrounds. Olga takes pride in establishing a personal relationship with each client and makes every effort to ensure the litigation process is less confusing and more transparent.

Ms. Siamionava-Muzio believed in giving back to the community and charitable work. She devoted considerable time to assisting immigrants in removal defense clinics.

Ms. Siamionava-Muzio is also fluent in English, Spanish, and Russian.

Court Admissions
  • New York State
  • New York State Bar Association
  • New York State Trial Lawyers Association
  • New York State Trial Academy
  • Dispute Resolution Society – Certified Mediator
  • Multilingual Legal Advocates Group
Honors and Recognition
  • 2018 “Rising Star” Super Lawyers
  • 2019 “Rising Start” Super Lawyers
  • 2019 “Top 40 Under 40 Civil Plaintiff” by The National Trial Lawyers
  • St. John’s University School of Law, J.D.
  • John Jay College of Criminal Justice, B.A.
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