Van Voorhis & Sosna are San Francisco Bay Area divorce lawyers with integrity. We are dedicated to resolving your divorce or family law matter as if you were a member of our family.

San Francisco Divorce Lawyers

What Makes Van Voorhis & Sosna Stand Out Attorneys with Experience and Heart
Local, Driven, and Focused

We limit our practice to family law in the San Francisco Bay Area, including San Francisco County, San Mateo County, Alameda County, Marin County and Contra Costa County.

We understand the complexities of family law in the Bay Area because we live and work here, with our main office located in the heart of San Francisco.

Led by Certified Family Law Specialists

You deserve an attorney recognized by the state of California for their expertise in the field, and someone who understands the complexities of family law, divorce, custody, and domestic partner dissolution.

The partners are certified family law specialists, and the entire firm is dedicated to the practice of family law.

Multiple Avenues to Resolution

We frequently act as advising or consulting attorneys to clients participating in mediation—we encourage clients to settle their disputes, and we don't get in the way of a mutual agreement.

Nevertheless, our experience has proven that vigorously preparing for a trial through strategic litigation often leads to a better, quicker settlement and prepares you for trial, if necessary.

Practice Areas

Divorce (dissolution of marriage) can be stressful and traumatic. We understand the decision to divorce is difficult but also must be handled efficiently, but carefully.

Same Sex Dissolution

Learn more about our same sex dissolution practice here.

Child Custody

In most custody cases, parents must either come to an arrangement that is reasonable for both their children and the parents, or an arrangement will be made by the court.

Child Support

As part of a divorce or a parentage action, controversy will often arise over the amount of support payable by one party to the other.

Premarital Agreements

A Pre-nuptial agreement is designed to save litigation time and costs in the event of a divorce. Pre-nuptial agreements offer peace of mind, clarity, and security.


Mediation can be used in most areas of family law including premarital agreements, divorces and post-judgment issues.

Services We Offer

At Van Voorhis & Sosna, we treat your family law matter like you are a member of our own family. We place a premium on acting with integrity, demonstrating our understanding of your particular situation and the law that governs it, and earning your trust. Our services include:

Divorce / Dissolution

We know how difficult divorce can be. Our priority is helping you know your options and likely outcomes and navigate the best course for you and your future.

Child Custody
Child Custody

We keep the best interests of you and your child at the center of everything we do and every decision we recommend. We are a consistent advocate for our clients and their families’ needs and will help you negotiate your child custody arrangement both in and out of the court system.

Child Support
Child Support

Our specialty is ensuring child support orders are fair and appropriate and take into consideration even the most complex elements of your financial picture.

Spousal Support
Spousal Support / Alimony

Spousal support orders are one of the most complex and least straight-forward elements of family law. Our years of experience will help you negotiate a support order or prepare you to litigate for a fair and appropriate award as necessary.

Parentage (Paternity)

Paternity disputes can be a trying and emotional time. Whether you are seeking to prove or dispute parentage, we will guide your case with compassion and help you understand your rights and responsibilities.

Domestic Partnership Agreements

Domestic partnerships are a relatively young area of family law, with a lot of complexity. If you are considering a registered domestic partnership, speak to us about protecting your assets sensitively through a domestic partnership agreement.

Partnership Dissolution
Same-Sex Separation / Domestic Partnership Dissolution

In the event of a termination of a domestic partnership, we can help guide you through this difficult time, reducing conflict and helping you make the best legal choices available to you.

Prenuptial Agreements
Premarital / Prenuptial Agreements

Handled sensitively, premarital agreements can be a healthy tool for establishing agreement about how certain financial matters will be dealt with during marriage, upon death, and in the event of a divorce. We are skilled at discussing these matters to secure your relationship, now and in the future.

Super Lawyers
Best of the Best Attorneys Top 100
Family Law Top 100
Top 10 - 2020 Family Law Attorneys
Top 50 Super Lawyers
Top 100 Super Lawyers
News and Awards

We are pleased to share the recent news that for the tenth consecutive year, our San Francisco divorce attorneys have been recognized by Super Lawyers.

Sarah Van Voorhis was named to Northern California Super Lawyers, Super Lawyers' list of Top 100 Attorneys in Northern California, and Super Lawyers' list of Top 50 Women in Northern California.

Ariel Sosna was named Super Lawyer for 2019. She was also named a Northern California Rising Star 10 years in a row. The Rising Star list contains no more than 2.5 percent of lawyers in California.

Family Law Matters
Speak With Us

Let us treat you like we treat family. We offer complimentary telephone consultations to let us learn more about your situation and help you see for yourself what sets us apart.

Please contact us to schedule your free telephone consultation.