Navigating Putative Fathers and Unknown Biological Fathers in Hawaii Private Adoptions

Current as of: September 24, 2026 Adoption Law Hawaii
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Because Hawaii does not have a formal Putative Father Registry, unwed fathers must proactively establish paternity to protect their rights. When a birth mother does not know the father's identity, the court terminates "John Doe" rights through newspaper publication.

In private infant adoptions, ensuring that all biological parents have their legal rights properly terminated is the most critical step of the entire process. If a mistake is made, a biological father could potentially emerge months or even years later to challenge the adoption and seek custody. When a birth mother is unmarried, the biological father is legally referred to as a "putative father." Things become incredibly complex when the identity or location of this man is entirely unknown.

Unlike many other states, Hawaii does not maintain a central database where unmarried men can register to be notified of adoptions. This places a heavy burden on the court system and the adoptive parents to ensure proper notice is given. If you are pursuing a private adoption in Maui, Kauai, or Oahu, finding an experienced adoption attorney in our US Attorney Directory is essential to safeguard the finalization. Here is a guide to handling putative and unknown fathers in Hawaii.

Hawaii's Lack of a Putative Father Registry

In many mainland states, if an unwed man sleeps with a woman and suspects she might get pregnant, he can register his name on a Putative Father Registry. If an adoption petition is filed, the state checks the registry and notifies him. Hawaii does not have a Putative Father Registry. This means the Family Court of the Second Circuit, Wailuku or any other local court cannot simply check a database to see if a man wants to claim paternity.

Instead, Hawaii relies heavily on the birth mother's sworn testimony to identify any potential fathers. Under Haw. Rev. Stat. § 578-2, if a putative father has not formally established his paternity through a court order, filed a notice of intent to claim paternity, or lived with the child, his consent might not be strictly required. However, he is still legally entitled to receive notice of the adoption hearing.

Terminating "John Doe" Rights

If a birth mother genuinely does not know the name of the biological father (for example, in cases of a brief encounter or assault), the legal system refers to the unknown man as "John Doe." Adoptive parents cannot simply ignore John Doe. His theoretical rights must be legally terminated for the adoption to be secure.

The Diligent Search and Publication

Your attorney must file a sworn statement proving that a diligent effort was made to identify the father. This is often done using Form 2F-P-110, Hawaii, Family Court of the Second Circuit, Motion for Service by Publication; Affidavit of Plaintiff. Because you cannot mail a letter to an unknown person, the judge will order notice by publication. A legal warning to "John Doe" will be printed in a newspaper where the conception likely took place. If no man steps forward within the timeline listed in the publication, the court will permanently terminate John Doe's rights by default.

The Dangers of Paternity Fraud in Adoption

Paternity fraud occurs when a birth mother intentionally lies to the court about the father's identity or claims she doesn't know who he is, just to avoid dealing with him. This is incredibly dangerous for the adoptive parents. If the true biological father later discovers the deception, he can petition the court to overturn the adoption. In precedents akin to In re Adoption of Male Minor Child, 1 Haw. App. 364 (HI Intermediate Court of Appeals 1980), courts emphasize that a father's constitutional right to parent his child can overcome an adoption decree if his rights were bypassed through active fraud. Your attorney must heavily counsel the birth mother on the severe legal risks of hiding a known father.

Timeline for Unwed Fathers to Object

An unwed father must act very quickly to protect his rights. If he is personally served with notice of the adoption petition, he generally has only 20 days to file a formal objection and initiate a paternity action. If he is served via newspaper publication, the timeline is stated in the published notice. If he fails to appear at the designated court hearing, the judge will rule that he has waived his rights, and his consent will no longer be required to finalize the adoption.

How Much Does it Cost in Hawaii?

Handling unknown or uncooperative putative fathers adds specific expenses to a private adoption budget.

Expense TypeEstimated Cost
Legal Publication (Newspaper)$400 - $800
Private Investigator (Diligent Search)$250 - $600
Process Server (Serving a Known Father)$75 - $150
Attorney Fees for Terminating Rights$1,500 - $3,500 (Uncontested)

How Long Does the Process Take?

If the father is unknown and you must use publication, the newspaper notice must run for several weeks, adding about 30 to 45 days to the legal timeline. Overall, clearing putative father rights before the baby is born (or shortly after) is a standard part of the process, allowing most private uncontested infant adoptions to be finalized within 6 to 9 months after birth.

Frequently Asked Questions (FAQ)

Does the putative father have to pay child support if he refuses to consent?

If a putative father halts an adoption by refusing to consent, he is legally establishing his parental rights. With those rights comes the absolute legal obligation to pay child support and help provide for the child financially.

What if the birth mother refuses to name the father?

The court cannot physically force the mother to speak, but the judge will require her to testify under oath. If she refuses, the court may delay the adoption or require extensive publication in multiple cities to ensure "John Doe" receives the best possible notice.

Can a putative father sign away his rights before the baby is born?

In Hawaii, a putative father can often sign an irrevocable waiver of interest or consent to adoption before the child is born, making the legal process much smoother for the adoptive parents once the birth occurs.

What happens if two different men claim to be the father?

If paternity is contested among multiple men, the Family Court will order a DNA test to establish biological paternity before proceeding with any termination of rights or adoption hearings.


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