Ariel Sosna Photo
  • Bio
  • Credentials

Ariel Sosna

Founding Partner

Ariel is a founding partner of Van Voorhis & Sosna LLP. She is certified as a specialist in Family Law by the State Bar of California Board of Legal Specialization. Ariel has been exclusively practicing family law in California (San Francisco Bay Area) since 2007.

Ariel is a highly experienced family law attorney, who previously worked at a prominent San Francisco law firm before establishing her own practice. She has received consistent recognition from Super Lawyers magazine, being named a family law Rising Star for nine consecutive years from 2009 to 2018 and selected as a Super Lawyer for the past three years (2019-2023). Ariel has a strong background in mediation, having completed a 40-hour Mediation Intensive Training Program in 2013 and is trained in collaborative divorce. Her family law practice encompasses various areas, including divorce, child custody, support, and complex property allocation. She is an active member of several legal organizations, including the State Bar of California's Family Law Section and the San Francisco Bar Association's Family Law Section.

Ariel holds a J.D. with a focus on Family Law from U.C. Hastings School of the Law and a B.A. in Psychology from U.C. Berkeley. Prior to establishing her own legal practice, she worked as an associate at a reputable San Francisco law firm. Ariel also served as co-chair of the Family Law Section within the San Francisco Bar Association's Barristers Club. She volunteers with the San Francisco Superior Court as a settlement officer and with San Mateo Superior Court with their self-represented litigant status conferences.

As a San Francisco native, Ariel enjoys all things San Francisco including walking tours of historical sites in the city. She also enjoys cooking and frequenting the local farmer's markets. Most of all, Ariel enjoys spending time with her child.


  • J.D., U.C. Hastings School of the Law
    • Concentration in Family Law, Pro Bono Publico Award, Public Interest Law Certificate, Dan Bradley Fellowship
  • B.A. in Psychology, U.C. Berkeley, 2000

Jurisdictions Admitted to Practice

  • State of California, 2007

Professional & Bar Association Memberships

  • San Francisco Bar Association's Barristers Club
    • Co-chairperson of the Family Law section
  • State Bar of California
    • Family Law section
  • Queen's Bench
    • Active Member
  • American Bar Association
    • Family Law Section

Work Experience

  • The Ruben Law Firm
    • Associate
  • San Francisco Superior Court Family Law Facilitator's Office
  • Law Center for Families (assisting with the Deaf Women's Legal Project)
  • Center for Families, Children, and the Courts (a division of the Administrative Office of the Courts)


  • Super Lawyers® 2019-2023
  • Rising Stars 2009-2018


Co-Author of "Barrister Club Involvement Leads to Founding of a Firm" appearing in The Bar Association of San Francisco Bulletin, Volume 4, Number 12

Co-author of monthly column "Family Law Corner" in The Bar Association of San Francisco Bulletin, 2009 to present

Research assistant for Professor Weisberg contributing to:

  • Modern Family Law: Cases and Materials
  • California Family Code and Related Provisions with Commentary

Achievements & Other Notable Experiences

Ariel has been selected by Super Lawyers every year since 2009. First as a RisingĀ Star fromĀ 2009 to 2018 and later as a Super Lawyer from 2019 to 2023. Ariel is a Martindale-Hubbell AV preeminent attorney.

  • Over 100 Years of Combined Experience
  • Highly Educated & Recognized for Excellence
  • We Have Certified Family Law Specialists
  • We Add Value for Our Clients

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