(909) 548-2171
Call Today
Serving San Bernardino, Los Angeles, Riverside and Orange Counties
Contact Us
West Coast Law & Mediation, APC

Address :
15338 Central Ave Chino, CA 91710

Phone: (909) 548-2171

Our Location

About West Coast Law & Mediation, APC

95% of all divorces settle before trial. Achieving a divorce out of the courts depend on having professionals that are trained in conflict resolution and committed to peaceful and amicable solutions. This is why as lawyer mediators, our practice is committed 100% to out of court divorce solutions. Our model emphasizes informed decision-making, and promotes communication between parties, so they learn to steer away from intimidation tactics and a scorched earth mentality.

We are family law mediators that help you solve the legal, emotional, and financial challenges you and your family face during divorce. We offer healthier options for divorce, so that you are in control of your stress, your outcome, and your budget.


Your Professional Team

Diana L. Martinez

Diana L. Martinez, founder of West Coast Mediation, provides “no-court” divorce and conflict resolution services, including collaborative divorce and divorce mediation services, in San Bernardino, Los Angeles, Riverside, and Orange counties.  She is an active member of the Riverside County Bar Association Alternative Dispute Resolution Panel, and a board member of Collaborative Divorce Solutions of Orange County

Personal Statement:

In every divorce case I handle, my goals are to help protect the children, empower my clients to keep control of their situation, and to keep them all out of court.  Nothing good happens in court… even if you “win”.  Relationships are destroyed, families and friends are divided, funds exhausted, and everyone suffers.  You know your needs and the needs of your children better than anyone else, especially a judge, who knows only a small fraction of your story, what is “legally relevant”.   Your future should be based on more than what the legislature has deemed “legally relevant” for couples and families in general.  One size does not fit all.  Everyone is unique.  You deserve an agreement that meets your unique needs and that comes from those who know your needs and goals best… YOU.

Patrice Courteau, MFT, Child Specialist, & Divorce Coach

Collaborative Solutions for Divorce, Dissolution, Separation and a wide range of family and business disputes…

Collaborative Practice:

Empowers you to resolve your legal disputes without judges, magistrates or court personnel making decisions for you.

Provides you with specially trained Collaborative lawyers, mental health and financial professionals to educate, support and guide you in reaching balanced, respectful and lasting agreements.

Offers you a safe and dignified environment to reduce the conflict and minimize its impact on you, your children, your family and your life.

Marvin Chapman, MFT, CFC, Communications Mediator/Coach

Dr. Marvin L. Chapman has been divorce coaching for over 30 years, commencing when he co-founded a nonprofit organization emphasizing responsible fatherhood. He is currently the President of this multiple award-winning organization. Over the years Marv learned that empowering individuals with information about family court and the affects it has on family members significantly reduced the anxiety, frustration, and confusion inherently present when engaged in the family court system.

Educated in Southern California, Dr. Chapman has a Bachelors of Arts in Psychology, a Master of Science in Counseling, and a Doctorate of Psychology, specializing in forensic psychology. Trained as a Collaborative Divorce coach in 2004, he is an active member with several collaborative practice groups in Southern California.

As a court mediator in the early 1980’s, Marv was fortunate to be mentored by some of the innovative pioneers of court mandated mediation. He is a strong advocate for out-of-court options and nonadversarial alternatives, a product of his witnessing first-hand the abusiveness of the adversarial family court system on individuals and families.

In 1986, Marv was appointed to the California Senate Task Force on Family Equity, a task force set up by the California legislature to make recommendations relating to family law. He was appointed to this task force to represent the issues and concerns confronting fathers in the family court system.

Throughout the following decade, Marv spread the word through public speaking, writing articles, serving on the Board of Directors for Modern Dad magazine, and as Board member and Professional Standards Chairperson with the California Association of Legal Document Assistant

In 2001, the Orange County District Attorney, Family Support Division, selected Marv to present “The Fathers Perspective” for their customer service training.

Dr. Chapman’s work with fathers through his nonprofit organization was recognized by receipt of Community Service awards from Disneyland Resort in 2001, 2002, and 2004. They received the prestigious Jack B. Lindquist Award in 2004, one of the highest awards given by Disneyland Resort.

Education and training has given Marv the tools, and working with families for over three decades has given him the experience, to effectively guide and assist those going through the family restructuring process. His approach is information, education, communication. He teaches conflict resolutions skills and assists in identifying and defusing hot emotional issues. He helps individuals separate emotional and behavior roadblocks that interfere with making sound decisions. Marv actively seeks viable options, constructive alternatives, and positive solutions for all family members.

Carol Hughes, Divorce Coach, Child Specialist

As a psychotherapist in clinical practice, I have worked with divorcing couples and their children since 1983 and am one of the founding members of Collaborative Divorce Solutions Orange County. My professional mission statement, which is to assist as many people as possible heal and empower themselves, comes to fruition in the collaborative divorce process, which is based on mutual respect and alleviating the current and future trauma common in divorce. I have extensive training in collaborative divorce, mediation, domestic violence, chemical dependency and trauma recovery and for ten years I served as an associate professor of Human Services at Saddleback College training prospective counselors, therapists and others pursuing professions in human services.

Perhaps the most important ancillary service in my practice is Amahle (“Molly”), a yellow Labrador, who is my canine co-therapist.

Joyce Tessier, Divorce Coach

Joyce is a licensed Marriage and Family Therapist in private practice in Upland since 1990. Her practice is devoted primarily to counseling couples who want to make their relationship better through improved communication and understanding, whether they make up or break up.

Her educational credentials include an undergraduate degree in Behavioral Science from Cal Poly Pomona and a Master’s degree in Counseling from Cal State Fullerton as well as certificates in Alcohol/Drug Treatment and Paralegal Studies from the University of La Verne.

Her special training and experience include extensive marriage counseling and collaborative divorce coaching as well as law office management and writings on adoption, child custody, visitation and divorce.

She is a founding board member of the Collaborative Divorce Professionals of the Inland Empire (CDPIE), a practice group of attorneys, mental health professionals and financial specialists who work together as a team to help families through divorce. She is also a member of Collaborative Divorce Solutions of Orange County (CDSOC), another practice group. as well as the International Academy of Collaborative Professionals (IACP).

As a trained collaborative divorce coach and mediator, she is committed to helping families find a peaceful way to end their marriage without going to court.

Cathleen Collinsworth, Financial Professional


Divorce is a stressful, uncertain time in your life. Ms. Collinsworth uses her genuine people skills and authentic personal style to educate you on the unique options, risks, strategies and expectations you’re facing. Indeed, you’ll get more than just certified divorce financial services expertise; you’ll get a trusted, loyal ally to help make wise, informed decisions that appropriately protect your current and long-term financial interests.

Ms. Collinsworth has been retained as a Forensic Accountant and Expert Witness to provide services in the area of family law in the following principal areas:

  • Collaborative divorce financial services
  • Mediated divorce financial services
  • Cash flow
  • Tracing separate and community assets
  • Preparing the marital balance sheet
  • Business valuations
  • Other financial areas to assist the parties and the Court

As a Certified Divorce Financial Analyst, Ms. Collinsworth can help divorcing clients and their family lawyers address the special financial issues of divorce with the data that can help achieve equitable settlements. Her proven, in-depth experience includes: collaborative divorce; mediation; cash flow; business valuations; tracing separate and community assets; preparing the marital balance sheet; and other financial areas for the past 16 years. Additionally, Ms. Collinsworth has 20 years of experience in professional tax service, including expertise with small business owners.

Bruce Fredenburg, LMFT, Child Specialist, & Divorce Coach

Areas of practice: Child and Adolescent Therapy, Collaborative Divorce, Collaborative Practice, Cooperative Divorce, Co-Parenting Issues & Visitation, Divorce Mediation, Family Therapy, Individual Psychotherapy, Mediation, Relationship Counseling


Mental health and financial professionals are not employees of West Coast Law & Mediation, APC. References to any specific professionals in this website is for the information and convenience of the public, and does not constitute endorsement, recommendation, or preference by West Coast Law & Mediation, APC, or its employees. It is up to current and potential clients to research and interview each professional the client believes will be the best fit for their goals, concerns and circumstances.