Arlene Kostant

Arlene Kostant

Arlene Kostant specializes in family law mediation and collaborative law. She is able to meet with clients in her San Francisco or Lafayette office.

Firm Overview

Arlene is a State Bar Certified Specialist in Family Law. She is an active member of a number of collaborative practice groups and is dedicated to helping clients reach out of court solutions in their family law legal matters including:
-Dissolution of Marriage or Domestic Partnership
-Premarital Agreements
-Domestic Partnership Agreements
-Parenting Agreements
-Financial Agreements
-Support Modifications

Arlene is on the adjunct faculties at UC Berkeley School of Law and Hastings College of the Law teaching Negotiations. In addition, she does private negotiation training for law firms, collaborative practice and industry groups. She welcomes inquiries regarding setting up a training for your organization.

Main Office

Main Office
220 Montgomery Street, 15th Floor
San Francisco CA 94104-3413






Arlene Kostant will represent your Family legal matters.

Practice Areas:
-Child Custody
-Child Custody Mediation
-Child Support
-Collaborative Family Law
-Community Property Law
-Divorce Mediation
-Domestic Relations
-Family Law
-Family Mediation
-Marital Agreements
-Marital Property Distribution
-Marital Property Law
-Marital Property Settlements
-Matrimonial Law
-Post Divorce Alimony
-Post Divorce Modification
-Postnuptial Agreements
-Premarital Agreements
-Separation Agreements
-Spousal Support
-Visitation Rights

Arlene Kostant

Arlene Kostant

ISLN: 905767213

Admitted: 1977, California

Law School: Golden Gate University, J.D.

Member: Bar Association of San Francisco (Chair, Executive Committee, Family Law Section, 1997); Alameda County Bar Association (Member, Family Law Section); State Bar of California (Member: Family Law Section); Collaborative Practice East Bay (Member, Steering Committee 2009-2010); Collaborative Practice San Francisco; International Academy of Collaborative Professionals.

Biography: Recipient, American Jurisprudence Award. Selected: Northern California Super Lawyer, 2005—; Top 50 Northern California Women Attorneys, 2006-2007-2008. Co-Desk Editor, Mediation and ADR, Collaborative Review, 2006. Author: "The Thatcher Trap - Don't Fall In," Family Law News, Summer 1991. Lecturer in Law, Negotiation, Boalt Hall School of Law, 2001—. Adjunct Assistant Professor, Negotiation/Settlement; Mediation, Hastings College of Law, 1992—. Lecturer: California Continuing Education of the Bar, 1983-1988. Adjunct Faculty, San Francisco State University, 1981-1985. Continuing Education Seminars, Bar Association of San Francisco, 1982-1991. Member, Association of Family Conciliation Courts, 1981-1996. Negotiations trainer for law firms, industry, collaborative practice groups. Named by Daily Journal Legal Newspaper as one of top 25 Family Law Mediators in California, 2003. Co-Chair, Collaborative Practice California Conference, 2008.

Born: New York

Languages: French


Golden Gate University
Juris Doctorate,