Van Voorhis & Sosna LLP

Van Voorhis & Sosna LLP is a premier family law firm committed to legal excellence, ethical representation, and personalized client advocacy throughout the San Francisco Bay Area. With a focus exclusively on family law, the firm brings a deep understanding of local legal nuances to complex matters involving divorce, custody, support, and domestic partnerships. Guided by integrity and compassion, each case is approached as if it involves a member of the firm’s own family.

Van Voorhis & Sosna LLP leverages over 100 years of combined experience to craft strategic solutions that reflect both legal acumen and emotional intelligence. Certified Family Law Specialists lead the practice, ensuring clients benefit from advanced knowledge and recognized expertise. Core services include divorce, LGBTQ dissolutions, child custody and support, spousal support, and prenuptial agreements. Mediation consulting and trial preparation are integral to the firm’s approach, blending negotiation with readiness for litigation when necessary.

Van Voorhis & Sosna LLP emphasizes personalized, high-quality legal counsel that places client priorities at the center of every decision. Each matter receives thorough attention—from financial complexities in support calculations to the emotional dynamics of custody arrangements—delivered with sensitivity, discretion, and transparency. The firm’s proven ability to resolve disputes efficiently while safeguarding client rights is a hallmark of its reputation.

Van Voorhis & Sosna LLP has earned consistent recognition for excellence, including listings among Super Lawyers’ Top 50 Women and Top 100 Lawyers in Northern California. Trusted throughout Marin, San Mateo, Alameda, Santa Clara, and Contra Costa Counties, the firm’s attorneys provide steady, informed guidance through life’s most challenging transitions. Every step is handled with professionalism and care, from consultation to case resolution.