ProbateProbate LitigationTrust Litigation

Undetermined Heirs Can Lead To Estate Litigation

By November 5, 2026No Comments
notice to heirs in California probate
When someone dies in California, determining who inherits their property isn’t always straightforward. A relative may have been left out of probate paperwork, family members may disagree over someone’s relationship to the deceased, or an estate administrator may be unable to identify every surviving heir.
If you believe you’re entitled to an inheritance but someone is questioning your claim, understanding how to prove you are an heir in California can help you protect your rights.
California law provides a process for resolving disputes over who is entitled to receive estate property.
At The Grossman Law Firm, Attorney Scott Grossman represents heirs and beneficiaries throughout California in probate litigation, including disputed inheritance claims.

Table of Contents

Key Takeaways

  • California’s intestate succession laws determine who inherits property when someone dies without a valid will disposing of that property.
  • Disputes may arise when heirs are missing, excluded, or unable to establish their relationship to the deceased.
  • Probate Code § 11700 allows qualifying individuals to petition the court to determine who is entitled to estate distributions.
  • If someone disputes your inheritance rights, you may need evidence and court intervention to establish your claim.

Who Qualifies as a Legal Heir in California?

A legal heir is someone entitled to inherit under California’s intestate succession laws.
When a person dies without a valid will, Probate Code §§ 6401–6402 determine how their probate estate passes to surviving relatives.

Who Has the Right to Inherit Under California Law?

Depending on the family circumstances, heirs may include:
  • A surviving spouse or domestic partner.
  • Children and other descendants.
  • Parents.
  • Siblings and their descendants.
  • More distant relatives when no closer qualifying relatives survive.
Not every relative automatically inherits. California law establishes an order of succession, and closer heirs may prevent more distant relatives from inheriting.
An heir also differs from a beneficiary named in a will. A beneficiary may inherit because the will identifies them, while an heir’s rights arise under California’s intestate succession laws.
Questions about inheritance rights can arise for several reasons.

Missing or Previously Unknown Heirs

A personal representative may discover a previously unknown child or another relative who could be entitled to part of the estate.
If the person was omitted from probate filings, determining their rights may require additional investigation or court proceedings.

Disagreements Over Family Relationships

Sometimes, relatives question whether someone is legally recognized as the deceased person’s child.
California Probate Code §§ 6450–6453 address parent-child relationships for intestate succession, including circumstances involving adoption and legally established parentage.
These disputes can become complicated when birth records are unavailable, or family relationships were never formally documented.

Conflicting Inheritance Claims

Two or more relatives may disagree about who should receive a particular share of an estate.
For example, siblings may dispute whether another individual qualifies as their deceased parent’s child.
When the disagreement affects estate distributions, the probate court may need to determine who is legally entitled to inherit.

How to Prove You Are an Heir in California

Establishing heirship generally requires evidence showing your relationship to the deceased and your entitlement under California law.
Relevant evidence may include birth certificates, adoption records, marriage certificates, death certificates, and court orders establishing parentage.
In some cases, additional testimony or other legally admissible evidence may be necessary.

Filing a Petition to Determine Inheritance Rights

Under Probate Code § 11700, a person claiming entitlement to part of an estate may file a petition asking the court to determine who should receive distributions.
The petition must explain the basis for the person’s claim.
This procedure is available after the court issues Letters to a general personal representative and before it orders final distribution.
The estate’s personal representative or a person claiming entitlement to a share may file the petition.

What Happens After the Petition Is Filed?

Under Probate Code §§ 11701 and 1220, notice generally must be provided at least 15 days before the hearing to specified interested parties, including known heirs whose interests may be affected.
Other interested parties may appear and file written statements supporting or opposing the petition under § 11702.
The probate court then considers the evidence and determines who is entitled to inherit and their respective shares.

What If Someone Disputes Your Right to an Inheritance?

Consider this example.
After her father dies without a will, Maria learns that her half-brother, Daniel, has petitioned to administer the estate.
Daniel identifies himself as the deceased’s only surviving child, leaving Maria out of the probate filings.
Maria has a birth certificate identifying their father, along with records showing their relationship.
If Daniel disputes Maria’s right to inherit, she may be able to establish her claim through the probate proceedings, including, when appropriate, a petition under Probate Code § 11700.
If the court determines that Maria qualifies as an heir, she may be entitled to a share of the estate under California’s intestate succession laws.
The outcome depends on the evidence, applicable law, and whether other heirs also have inheritance rights.

What Should You Do If You Have Been Excluded From an Estate?

Steps to Protect Your Inheritance Rights

If you believe you’re a rightful heir but have been left out of the probate process, consider taking these steps:
  1. Review the probate case. Find out whether a case has been opened and identify the estate’s personal representative.
  2. Gather proof of your relationship. Collect records supporting your inheritance claim.
  3. Review any proposed distribution. Determine whether the estate is being distributed without recognizing your potential interest.
  4. Speak with a California probate litigation attorney. An attorney can assess your evidence and determine whether a court petition or objection is appropriate.
Under Probate Code § 11705, a final order determining the persons entitled to distribution is binding and conclusive as to the rights of interested persons.
This makes it important to investigate a disputed inheritance claim before the court issues its final determination.

FAQ

Can I inherit in California if I was left out of probate paperwork?

Potentially. Being omitted from the paperwork doesn’t automatically eliminate your inheritance rights. Your entitlement depends on California law and the estate’s circumstances.

Can an unknown child claim an inheritance?

Yes, if the individual establishes a qualifying parent-child relationship and is entitled to inherit under California law.

What if other heirs refuse to recognize my claim?

You may be able to seek a court determination of your inheritance rights. The appropriate procedure depends on the status of the probate case.

How long do I have to prove I am an heir in California?

No single deadline applies to every heirship dispute. A petition under § 11700 must be filed after Letters are issued and before final distribution is ordered. Other procedures and deadlines may apply.

How The Grossman Law Firm Can Help

If your inheritance claim is being disputed or you’ve been excluded from estate proceedings, you may have grounds to take legal action. The Grossman Law Firm can help evaluate whether probate litigation is appropriate.
At The Grossman Law Firm, we help beneficiaries and heirs throughout California enforce their rights in probate and trust litigation.
Call (888) 443-6590 or fill out our Get Help Now form.
Our Intake Specialists can evaluate your case and assess your situation at no cost. We will schedule qualifying cases for a Free Phone Consultation with Attorney Scott Grossman.
Originally Published: Aug 27, 2016