When a property owner passes away, their heirs frequently face immediate financial needs or practical reasons to dispose of the inherited asset. A common legal dilemma arises: Can an heir validly sell their share of an inherited property before the family executes an Extrajudicial Settlement (EJS) or undergoes a judicial partition?

Under Philippine law, the answer is a resounding yes. However, while the sale is valid, it carries significant legal nuances, limitations, and rights of redemption that both sellers and buyers must understand.

1. The Core Principle: Instant Transmission of Ownership

The foundational rule governing this scenario is found in Article 777 of the Civil Code of the Philippines, which states:

"The rights to the succession are transmitted from the moment of the death of the decedent."

This means that the heirs do not need to wait for an Extrajudicial Settlement, a court order, or the issuance of a new transfer certificate of title to become the owners of the inherited property. Rights are transferred automatically by operation of law at the exact moment of the decedent's death. Because ownership vests immediately, the heirs possess the legal right to dispose of, alienate, or sell their respective shares.

2. The Legal Status of the Estate Before Partition: Co-Ownership

From the moment of death until the actual physical division of the property, the heirs do not own specific, localized portions of the estate (e.g., "the left half of the lot" or "the ground floor of the house"). Instead, they form a co-ownership over the entire undivided estate under Article 1078 of the Civil Code.

During this interim period, each heir owns an abstract, spiritual, or ideal share (pro-indiviso) of the property.

What an Heir Can Validly Sell

According to Article 493 of the Civil Code, a co-owner has full ownership of his part and may alienate, assign, or mortgage it. Therefore:

An heir can validly sell their ideal, abstract share of the inheritance to a third party.
The buyer steps into the shoes of the selling heir and becomes a co-owner of the undivided property alongside the remaining heirs.

What an Heir Cannot Do

An individual heir cannot sell a specific, physically demarcated portion of the land without the unanimous consent of all other co-heirs.

If an heir purports to sell a specific piece of the property (e.g., a designated 100-square-meter corner of a larger lot) before partition, the sale is not void. Instead, jurisprudence dictates that the sale is valid, but its effect is strictly limited only to the ideal portion that may ultimately be adjudicated to the selling heir once the partition is finalized. If the partitioned space ends up being located elsewhere, the buyer only gets what was legally allotted to the seller.

3. The Right of Legal Redemption by Co-Heirs

The law protects families from having unwanted strangers thrust into their co-ownership. Article 1088 of the Civil Code introduces the right of legal redemption:

"Should any of the heirs sell his hereditary rights to a stranger before the partition, any or all of the co-heirs may be subrogated to the rights of the purchaser by reimbursing him for the price of the sale, provided they do so within the period of one month from the time they were notified in writing by the vendor."

Key Conditions for Legal Redemption:

The Buyer Must Be a "Stranger": A stranger is anyone who is not an heir to the estate.
Thirty (30) Day Window: Co-heirs have 30 days to exercise this right.
Written Notice Requirement: The 30-day countdown begins only when the selling heir notifies the other co-heirs in writing of the actual sale. Philippine jurisprudence strictly interprets this; even if the other heirs have actual knowledge of the sale, the 30-day period generally does not start without a formal written notice from the vendor.

4. How the Sale is Positioned in Practice

Because selling an abstract share can be risky for buyers and complicated for titles, transactions of this nature generally take one of three practical forms in the Philippines:

A. Deed of Sale of Hereditary Rights

The heir executes a formal sale of their abstract rights in the estate. The buyer acknowledges that they are buying an undivided interest and will participate in the future settlement and partition of the estate.

B. Extrajudicial Settlement with Deed of Absolute Sale

This is the most common and cleanest method. All the heirs gather to execute a single public instrument. In this document, the heirs simultaneously:

Settle the estate extrajudicially.
Waive or sell their shares to a single buyer (either a third party or one of the co-heirs).

This approach satisfies the Registry of Deeds and the Bureau of Internal Revenue (BIR) for a seamless transfer of the title.

C. Conditional Sale / Contract to Sell

The heir and the buyer enter into an agreement where the buyer pays a downpayment, but the absolute transfer of ownership is conditioned upon the successful execution and registration of the Extrajudicial Settlement by all the heirs.

Summary Checklist for Buyers

If you are buying an inherited property before an Extrajudicial Settlement has been finalized, safeguard the transaction by confirming the following:

Proof of Filiation: Verify that the seller is a legitimate or compulsory heir of the deceased (via birth certificates, marriage certificates, etc.).
Death Certificate: Ensure the property owner has actually passed away (as future inheritance cannot be sold under Article 1347 of the Civil Code).
Written Notice to Co-heirs: Demand that the seller issue written notices to all co-heirs to trigger and clear the 30-day legal redemption window under Article 1088.
Estate Tax Compliance: Be aware that before a title can be broken down or transferred, the Estate Tax due on the decedent’s estate must be settled with the BIR.