Monica Mazzei

Attorney Profile

Top Rated Family Law Attorney in San Francisco, CA

Sideman & Bancroft LLP
 | One Embarcadero Center, 22nd Floor
San Francisco, CA 94111
Phone: 415-392-1960
Fax: 415-392-0827
Selected To Super Lawyers: 2015 - 2021
Selected To Rising Stars: 2011 - 2014
Licensed Since: 2002
Practice Areas:
  • Family Law
    Attorney Profile

    Focusing her practice exclusively on family law matters, Monica Mazzei is a partner at Sideman & Bancroft LLP. Located in the firm's office in San Francisco, she represents clients throughout the Bay Area, including Silicon Valley. Admitted to practice before all California state courts since 2002, Ms. Mazzei has been certified as a specialist in family law by the Board of Legal Specialization of The State Bar of California.

    A significant portion of Ms. Mazzei's practice involves her representation of people whose marriages are coming to an end and who are thus having to deal with such divorce-related issues as the division of complex assets and debts, spousal and child support, and child custody and visitation. A forceful courtroom advocate for her clients when litigation is necessary, her training in mediation often allows her to help them reach an accord on these issues through the use of the method of alternative dispute resolution. Ms. Mazzei's family law experience has also encompassed the preparation and review of prenuptial and post-marital agreements, and she assists clients who have already had their marriages dissolved and who are now seeking the enforcement of or modifications to existing support and parenting orders. Her successful track record has led to a great deal of recognition from her peers, including being named to The National Trial Lawyers: Top 40 Under 40 as well as to the Top 40 Lawyers Under 40 list as compiled by the American Society of Legal Advocates.

    Ms. Mazzei attended Holy Names University in Oakland and received a Bachelor of Arts magna cum laude in 1999. Her legal education was obtained at Southwestern Law School in Los Angeles, and she was awarded her Juris Doctor in 2002. Ms. Mazzei's professional affiliations include The Bar Association of San Francisco.

    Practice Areas
    • 100%Family Law
    Focus Areas

    Adoption, Alimony & Spousal Support, Child Support, Custody & Visitation, Dissolution, Divorce, Domestic Violence, Juvenile Law, Name Change, Paternity, Prenuptial Agreements, Marital Property, Mediation & Collaborative Law, Same Sex Family Law, Father's Rights


    Selected to Super Lawyers for 7 yearsmiddle-imageSelected to Rising Stars for 4 years

    Super Lawyers: 2015 - 2021 Rising Stars: 2011 - 2014

    Certificates and Credentials

    California Board of Legal Specialization

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    To: Monica Mazzei
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    About Monica Mazzei

    Admitted: 2002, California

    Professional Webpage:


    • Selected as one of the Top 40 National Trial Lawyers Under 40 by The National Trial Lawyers, 2014
    • Selected as one of the Top 40 Family Lawyers Under 40 in California by the American Society of Legal Advocates, 2013-2017
    • Selected as one of the Top Women Attorneys in Northern California by Super Lawyers, 2012-2014
    • Law Clerk for Judge Rolf Treu of the Los Angeles Superior Court Finalist Writer and Oralist, Moot Court Finalist, American Bar Association Negotiation Competition Editor, Southwestern Law Journal
    • Listed in Northern California Rising Stars, 2011-2014
    • Listed in Northern California Super Lawyers, 2015-2019
    • Named one of the 10 Best Attorneys in California by the American Institute of Family Law Attorneys, 2016, 2017
    • Recognized in Chambers High Net Worth 2017-2019 guide for Family/Matrimonial: California

    Special Licenses/Certifications:

    • Certified Family Law Specialist

    Bar/Professional Activity:

    • Member, International Society of Family Law
    • Member, National Italian American Bar Association 
    • She is a member of the Family Law and the International Law sections of the American Bar Association and the San Francisco Bar Association. She is also a member of the Family Law sections of the Beverly Hills Bar Association, the Marin County Bar Association, and the San Mateo County Bar Association.
    • Mentor Family Law Attorney, San Francisco Bar Association

    Pro bono/Community Service:

    • Volunteer Legal Services Program
    • Volunteer mediator SF Superior Court Family Law Division, Pro Bono Family Law Attorney SF Bar Association (VLSP)

    Scholarly Lectures/Writings:

    • Commentary, "Millennial Millionaires and Their Prenups -- What They Need to Be Thinking About," Entrepreneur, 2018
    • Commentary, "Tax Planning for the Divorcing and Newly Divorced," Reuters, 2012
    • Commentary, "3 Essential Money Conversations You Should Have Before Getting Married," Business Insider, 2014
    • Contributing author, “Inside the Minds: Strategies for Family Law in California, 14th ed.” Aspatore Publishing, 2014
    • Cohabitation Agreements – “Prenups” for the Non-Married
    • "Love Money What You Need To Know To Protect Your Wealth Before During and After Marriage," Legal Update, 2015
    • Monica Mazzei and Anne Freeman featured in “Secrets of the Divorce Lawyers” for the Nob Hill Gazette
    • Monica Mazzei and Anne Freeman discuss “Here’s How to Start That Prenup Conversation” for The Bride magazine
    • Commentary, "A Prenup Primer: What Silicon Valley Couples Should Consider," The San Francisco Chronicle, 2018
    • Presenter, CALCPA Family Law Conference, 2013
    • Commentary, "Trump's Tax Law Pushing People To Divorce Faster To Save Money," Newsweek, 2018
    • Commentary, “A Prenup Is the Latest Must-Have for Tech Startup Founders in Love,” Bloomberg News, 2019
    • Presenter/Lecturer, SF Financial Planning Association, 2013

    Other Outstanding Achievements:

    • Listed in Northern California Rising Stars®: 2011-2014 Selected as one of the Top Women Attorneys in Northern California by Super Lawyers: 2012, 2013, 2014 Selected as one of the Top 40 Family Lawyers Under 40 in California by the American Society of Legal Advocates: 2013, 2014 Selected as one of the Top 40 National Trial Lawyers Under 40 by The National Trial Lawyers, 2014

    Educational Background:

    • Harvard Law School, Advanced Negotiation Workshop, 2013
    • Holy Names University, B.A., Magna Cum Laude, 1999
    Find Me Online
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    Office Location for Monica Mazzei

    One Embarcadero Center
    22nd Floor
    San Francisco, CA 94111

    Phone: 415-392-1960

    Fax: 415-392-0827

    Monica Mazzei:

    Last Updated: 1/20/2021

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