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Paternity & Parentage
San Jose, California
Legal parentage is the foundation for custody, support, and a child's legal rights. James Chau helps establish and contest parentage throughout Santa Clara County.
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In California family law, parentage cases, sometimes called paternity cases, are proceedings in which the court determines who a child's legal parents are. Legal parentage is the foundation for all other rights and responsibilities involving a child, including custody, visitation, and support.
When parents are married at the time a child is born, California law presumes both spouses are the child's legal parents. No additional steps are required. For unmarried parents, legal parentage must be established through a formal process before a court can make any orders regarding custody, visitation, or support.
California Law
Why Establishing Parentage Matters
Legal parentage has significant consequences for everyone involved.
For the child
established parentage means the right to financial support from both parents, access to health insurance and benefits, eligibility to inherit, the ability to know their family medical history, and legal recognition of their relationship with both parents
For a parent seeking rights
established parentage is a prerequisite to any custody or visitation order. A biological parent who has never been legally established as a parent has no enforceable right to see or spend time with the child, regardless of their biological connection
For a parent resisting a claim
established parentage creates legal obligations including child support that cannot be ordered without it
California Law
How Parentage Is Established in California
California law provides several pathways to establish legal parentage.
Voluntary Declaration of Parentage (VDOP)
The simplest and most common method for unmarried parents. Signing a VDOP is voluntary, but it carries significant and lasting legal consequences. Once signed and filed with the California Department of Child Support Services, it has the same legal effect as a court judgment establishing parentage. Either parent may rescind within 60 days of signing, after which it can only be challenged on limited grounds such as fraud, duress, or material mistake of fact.
Court Action
If the parents do not agree on parentage, or if a VDOP is not appropriate, parentage can be established through a court proceeding. Either a parent or the child, through a guardian, can file a petition. The court may order genetic testing if parentage is disputed. Once established by court order, both parents have legally enforceable rights and obligations.
Presumed Parentage
California law recognizes presumed parents, meaning individuals presumed to be a child's legal parent based on their relationship to the child or the circumstances of birth. A person may be a presumed parent if they were married to the child's other parent at the time of birth, if they received the child into their home and openly held the child out as their own, or in certain other circumstances defined by the California Family Code. Presumed parentage can be contested under some circumstances but may be difficult to rebut once established.
Assisted Reproduction and Surrogacy
California has expanded parentage protections for families formed through assisted reproduction, including sperm or egg donation and gestational surrogacy. A VDOP is available to two parents, married or unmarried, who had a child through assisted reproduction using donated sperm or eggs. For surrogacy arrangements, a pre-birth or post-birth court order is the most reliable approach. The steps required depend on the method of conception, the marital status of the intended parents, and the specific surrogacy agreement.
Additional Considerations
Parentage for Same-Sex Parents and Genetic Testing
Same-sex parents
If two parents were married or in a registered domestic partnership when the child was born or conceived, parentage is generally presumed for both. If not married, legal parentage for the non-birth parent must be established through a VDOP, court order, or adoption. A pre-birth parentage order is the most reliable way to ensure both intended parents are recognized immediately at birth.
Genetic testing
If the alleged parent does not acknowledge parentage, the court may order genetic testing. DNA testing today is highly accurate. A positive result creates a rebuttable presumption of parentage. Refusing a court-ordered test does not prevent the court from establishing parentage and may result in an adverse inference.
Consequences of established parentage
Once parentage is legally established, the court can address custody, visitation, child support, inheritance rights, and health insurance. A parent who establishes parentage takes on legal responsibility for the child's financial support and may be ordered to pay retroactive child support in some circumstances.
Approach
How James Chau Can Help
Parentage cases can involve contested genetic testing, competing presumptions, surrogacy agreements, and complex family structures. Parentage cases often affect custody, support, inheritance rights, and other long-term legal issues. James helps clients understand those consequences before important decisions are made, and represents them effectively whether they are seeking to establish parentage or responding to a claim.
Speak Directly with James Chau
Schedule a free 20-minute consultation. No obligation. You will speak with James, not a staff member.
Why Clients Choose James Chau
Certified Family Law Specialist by the State Bar of California Board of Legal Specialization
More than 15 years serving San Jose and Santa Clara County as a family law attorney
Experience with parentage proceedings in Santa Clara County Superior Court
Direct communication with James throughout your case
Experience with VDOP, presumed parentage, assisted reproduction, and surrogacy matters
Serves English, Mandarin, and Vietnamese speaking clients upon request
Frequently asked questions
Contact the Law Office of James Chau
The Law Office of James Chau, P.C. represents clients in San Jose and throughout Santa Clara County. If you are ready to speak directly with a San Jose divorce attorney, contact us online or call (408) 899-8364.