Sue a Sibling for Inheritance in Florida | Trust Counsel

In some circumstances, a sibling may be sued over an inheritance in Florida. Whether a claim exists depends on the governing instrument, applicable Florida law and the facts of each case. A claim may challenge how a will or trust was made. It may also challenge how a sibling is handling estate or trust property. This page covers the main possibilities so you can see which questions matter. Trust Counsel, PL’s only office is in Coral Gables, Florida.

Short answer: can you sue a sibling over an inheritance?

Can you sue a sibling for inheritance? Possibly, depending on the document and the facts. Two different questions often get mixed together. The first is a claim against a sibling personally, such as a challenge to a will or trust. The second is a claim about how a sibling is running an estate or trust as personal representative (often called an executor) or trustee.

The answer also changes with the type of document. A will, a trust or no document at all each brings different rules. If a parent died without a valid will, Florida’s intestacy statute sets who inherits. Each of these paths is covered below. Start by identifying which document exists and which role each sibling holds.

Which claims may a sibling bring against another sibling?

A sibling may bring a will contest, a trust contest, a fiduciary duty claim or a request for an accounting, depending on the facts. Each claim has its own rules and its own burden.

A will may be challenged on certain grounds. Florida law says a will is void if its execution was procured by fraud, duress, mistake, or undue influence (Fla. Stat. § 732.5165). A will contest also cannot start before the testator’s death (Fla. Stat. § 732.518).

Who carries the burden matters. In a will contest, the proponent must first establish formal execution and attestation. After that, the contestant has the burden of establishing the grounds for opposing probate (Fla. Stat. § 733.107). In a trust contest, the contestant has the burden of establishing the grounds for invalidity (Fla. Stat. § 736.0207).

When a sibling serves as personal representative, the scope of that role depends on the governing instrument, applicable Florida law, and the facts of each case. Whether a court awards costs, including attorney’s fees, depends on the governing instrument, applicable Florida law, and the facts of each case. A claimant may need to qualify as an “interested person,” meaning someone who may reasonably be expected to be affected by the outcome (Fla. Stat. § 731.201). Whether a particular sibling qualifies turns on the document and Florida law.

When a parent leaves everything to one child

The will or trust, the parent’s documented intent and the facts decide whether a sibling has a claim.

A sibling may still question the document. Some possibilities include:

• Undue influence. Florida applies a presumption of undue influence in certain transactions involving a fiduciary or confidential relationship. That presumption shifts the burden of proof (Fla. Stat. § 733.107). Whether it applies depends on the relationship and the records.
• Execution problems. Under Fla. Stat. § 732.502, and subject to applicable law and the facts of each case, a will is generally required to be in writing and signed by the testator at the end of the will. If another person signs, that person signs in the testator’s presence and at the testator’s direction. Under Fla. Stat. § 732.502, a will generally requires the testator’s signature, or acknowledgment of that signature, in the presence of at least two attesting witnesses, who sign in the presence of the testator and each other, though exceptions may apply depending on applicable law and the facts of each case. A defect may affect validity, but the effect varies case by case.
• Late changes. A change made close to a parent’s decline may prompt undue influence questions. Those questions are answered with evidence, not by the timing alone.

If there is no valid will, Florida’s intestacy statute sets the order of heirs. The part of the estate not passing to a surviving spouse goes first to descendants. If there are none, it goes to the decedent’s father and mother. If none of those survive, it goes to brothers and sisters and their descendants (Fla. Stat. § 732.103). How that order applies depends on who survived the parent. A sibling’s place in it is not automatic.

When a sibling is acting as personal representative or trustee

A sibling who serves as personal representative or trustee may owe duties to other heirs and beneficiaries. The scope of those duties depends on the governing instrument and applicable Florida law.

Trust Counsel’s attorneys can serve individually as trustee or personal representative. The firm advises and represents trustees, personal representatives and beneficiaries.

For a trustee, Florida law says the trustee shall keep qualified beneficiaries reasonably informed. On reasonable request, the trustee must provide a complete copy of the trust instrument (Fla. Stat. § 736.0813). Whether a trustee’s conduct toward a beneficiary constitutes a breach of trust depends on the governing trust instrument, applicable Florida law and the facts of each case. Under Fla. Stat. § 736.1001, a violation by a trustee of a duty the trustee owes to a beneficiary is a breach of trust, and to remedy a breach that has occurred or may occur, the court may order the trustee to account or reduce or deny the trustee’s compensation, among other relief, depending on the governing trust instrument, applicable Florida law, and the facts of each case. Whether any remedy fits the facts is a separate question.

For a personal representative, the notice of administration goes to known beneficiaries and others. Interested persons served with that notice have 3 months to file objections to the will’s validity, venue or jurisdiction. That period may only be extended for estoppel based on a personal representative’s misstatement about the deadline (Fla. Stat. § 733.212). How that period applies depends on applicable law and the facts of each case.

A sibling who also held a parent’s power of attorney may raise separate questions. The guardianship and power of attorney topic on this site covers those. A sibling’s conduct is not a breach of duty by default. Whether it is depends on the instrument, the law and the facts.

Why siblings end up in inheritance disputes

Disputes can arise from unclear documents, perceived unequal treatment, caregiving roles or disagreement over property. Which of these matters most depends on the family’s history. The document is often the starting point, but past family relationships also shape how a conflict unfolds.

Estate administration can bring these disputes into court. According to ACTEC’s inheritance overview, disputes among beneficiaries, family members or creditors can lead to court involvement during estate administration.

A dispute may involve questions about how a trust is administered, a challenge to a will, or both. These are separate tracks with separate rules. Readers who want the steps for challenging a will can read the contest-a-will topic on this site.

How family estate disputes are commonly resolved

Family estate disputes may be resolved through direct negotiation, mediation, a written agreement among heirs, or court proceedings. Each path depends on the governing instrument, applicable law and the facts. No single sequence fits every family.

Early discussion may or may not narrow a dispute. The outcome varies with the people involved and what the records show. Court involvement is one possible path, not the only one.

Court cases still have procedural rules. A Florida Courts summary of testimony on probate case management notes that probate cases may be dismissed for failure to prosecute or lack of reasonable diligence.

Deadlines may also vary. How any particular deadline applies depends on the governing trust instrument, applicable Florida law, and the facts of each case, including the trust’s status and the notices sent.

Frequently asked questions

Can you sue a sibling for inheritance in Florida? Possibly. The answer depends on the governing instrument, applicable Florida law and the facts of each case.

Can a sibling challenge a will in Florida? A will may be challenged on grounds such as fraud, duress, mistake or undue influence. Whether a challenge succeeds depends on the evidence and the law.

Can a sibling ask for a copy of a trust? A trustee must provide a complete copy on reasonable request. The scope of that duty depends on the trust instrument and Florida law.

Talk through your sibling inheritance question with Trust Counsel

If a parent has died or become incapacitated, you may be trying to understand a sibling’s role or share before deciding anything. Trust Counsel’s attorneys can talk through the document, the timing and the questions in front of you. Call (305) 707-7126 or schedule online. The firm offers a free first consultation that is confidential and without obligation to continue. Fees are agreed between client and attorney according to the scope of work.