When a Sibling May Inherit Property in Louisiana

While you and your brother or sister are alive, you both get to define your relationship. However, after a sibling dies, Louisiana law will decide who your siblings are and which siblings may inherit property based on your family relations rather than your personal relationships.

Sibling Inheritance by Will

A person who dies with a valid will gets to decide how their property will be distributed, with limited exceptions for their spouse and children. That means, the testator (the person who created the will) may include or exclude anyone they consider a sibling regardless of whether that person is a full sibling, half-sibling, step-sibling, sibling who was adopted into another family, an adopted sibling raised by the same family, or even a friend or distant relative whom they considered a sibling.

As long as the will is valid and enforceable, the testator’s wishes will be honored by Louisiana courts, and the sibling(s) will inherit property.

Sibling Intestate Inheritance

Sibling inheritances become significantly more complicated when a person dies without a will. In these situations, two determinations must be made before sibling inheritance rights can be identified.

First, All Siblings Must Be Identified

According to Louisiana intestate law, the following siblings may inherit property:

• Full siblings. Full siblings are brothers and sisters who have the same parents. Full siblings are entitled to their full share of their sibling’s inheritance as allowed by Louisiana intestate laws.
• Half-siblings. Half-siblings are treated differently than full siblings. In most states, half-siblings have the same rights as full blood siblings; however, in Louisiana, half-siblings may only inherit through their bloodline. Therefore, half-siblings may inherit less than full siblings.
• Adopted-siblings. Both siblings put up for adoption and raised by other families and siblings adopted into the family are treated the same as biological siblings.

Foster siblings and step-siblings are not considered siblings pursuant to Louisiana intestacy law, even if they had a close relationship and lived as siblings for a long time.

Second, All Other Family Relationships Must Be Identified

In many cases, a sibling won’t inherit anything if their brother or sister dies without a will. If the person who passed away has children, grandchildren, or great-grandchildren, that person’s brothers and sisters do not inherit property in Louisiana. However, if the person who died did not have children, siblings may inherit property, as follows:

• Siblings inherit everything if the person who died also did not have a spouse or living parents.
• Siblings inherit all separate property if the person who died also had a spouse (and the spouse inherits all community property).
• Siblings inherit everything, subject to the parents’ life estate interest in all property if the person who died also had living parents.

Our Louisiana succession lawyers understand that you may have a lot of questions after your brother or sister dies. You don’t want to create unnecessary drama for your family, but you do want to make sure that your sibling’s estate is distributed according to the terms of your sibling’s will or Louisiana intestacy law.

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Siblings in Louisiana’s Intestate Succession Hierarchy

Under Louisiana’s intestate succession laws, siblings of the decedent inherit only when no closer relatives survive. Descendants — children, grandchildren, great-grandchildren — always come before siblings in the statutory order of inheritance. Parents of the decedent also inherit before siblings when they survive. Only when the decedent dies with no surviving descendants and no surviving parents do siblings rise to the level of intestate heirs. When that condition is met, however, the decedent’s siblings take the entire estate together, dividing it equally among themselves or, if a sibling has died before the decedent, by representation through that deceased sibling’s children.

The relationship between a surviving spouse and siblings is a more complex question under Louisiana law. A surviving spouse’s intestate rights depend on whether the property at issue is community property or separate property. For community property, the surviving spouse inherits the decedent’s share of the community when no descendants survive. For separate property, when the decedent leaves no descendants and no parents, the surviving spouse and the siblings share the separate property. Louisiana Civil Code article 894 provides that in this situation, the siblings take the separate property and the surviving spouse has a usufruct over the siblings’ inherited separate property — a right to use and enjoy it — rather than full ownership. This split arrangement can create significant practical complications for both the siblings and the surviving spouse.

The will changes all of this. A testator who wants to leave property to a sibling can do so through a will, regardless of whether the sibling would inherit under intestate succession rules. A testator with descendants — who would otherwise go before siblings in the intestate order — can specifically include siblings in their estate plan as beneficiaries of the disposable portion of the estate, provided the forced heirs’ mandatory shares are respected. A sibling who is not among the intestate heirs can nonetheless be a legatee under a will. For families who want to ensure that siblings are included in the estate distribution, the will is the mechanism that makes it possible.

Full Siblings and Half-Siblings Under Louisiana Law

Louisiana makes a distinction between full siblings — those who share both parents with the decedent — and half-siblings, who share only one parent. For community property (property acquired during the decedent’s marriage to their spouse), Louisiana’s intestate succession rules treat full and half-siblings equally — both inherit equally when they are in the same degree of relationship to the decedent. However, Louisiana Civil Code article 897 provides a distinction that applies to the decedent’s separate property: separate property inherited from a parent passes first to the decedent’s full siblings, excluding half-siblings who are not related through the same parent from whom the property descended.

This distinction — sometimes called the half-blood rule — means that half-siblings may find themselves excluded from certain portions of the estate that a full sibling would receive. For example, if the decedent inherited a tract of land from their father, that separate property from the paternal line passes preferentially to the decedent’s full siblings (those who share the same father) rather than to a half-sibling on the maternal side who is not descended from the same father. The half-blood rule is a specialized aspect of Louisiana succession law that even many attorneys who practice only occasionally in succession matters may not be aware of — and it can produce results that surprise families who did not know the distinction existed.

Adopted siblings and step-siblings occupy different positions in Louisiana succession law. An adopted person has exactly the same legal status as a biological child for Louisiana succession purposes — an adopted sibling inherits from the decedent in exactly the same way as a biological sibling would. A step-sibling — the child of a step-parent who was not legally adopted — has no inheritance rights in the decedent’s estate by operation of law. A testator who wants a step-sibling to inherit must include them in a will; the intestate succession rules will not do it automatically.

Sibling Disputes in Louisiana Succession Proceedings

When siblings are co-heirs in a Louisiana succession — sharing the estate because no closer relatives survived — they must cooperate in the administration and distribution of the estate. This cooperation can be challenging, particularly when the siblings have different views about whether to sell inherited real estate, how to value the estate’s assets, or how to treat advances that one sibling received from the parent during their lifetime. Louisiana’s collation rules — which require that certain lifetime gifts be brought back into the estate for equality of distribution among co-heirs — are a frequent source of sibling conflict in succession proceedings.

Partition actions are sometimes necessary when siblings who co-own inherited property cannot agree on what to do with it. A sibling who wants to sell inherited real estate but whose co-heir siblings want to keep it can file a partition action — a court proceeding that forces the sale or physical division of the property. Louisiana courts generally favor partition by sale over physical division when the property cannot be conveniently divided, and the resulting forced sale often achieves a lower price than a voluntary arm’s-length sale would have produced. The partition proceeding adds legal costs and time to what could have been a simpler voluntary transaction if the co-heirs had been able to agree.

Challenges to a sibling’s right to inherit — based on unworthiness, fraud, or disputed filiation — can also arise in succession proceedings. A sibling who committed certain acts against the decedent — participating in the decedent’s death, fraud related to the succession, or other conduct specified in Louisiana’s unworthiness doctrine under Civil Code article 941 — may be declared unworthy and excluded from the succession. These challenges require their own legal proceeding and add complexity and cost to the succession administration. When family relationships are strained and inheritance is significant, siblings’ disputes can turn a simple succession into a multi-year, multi-front litigation that depletes the very estate everyone was fighting over.

We can help you by thoroughly reviewing your brother or sister’s estate and advising you of your legal options. If you should inherit property, we can help you through the probate process or with your estate litigation needs.

Our Louisiana estate and probate team helps hundreds of Louisiana families resolve complex and often emotional issues each year. We will help you come up with cost-effective and efficient solutions to your succession issues.

Please call us or complete our contact form today to schedule your first meeting as soon as possible.