Securing a land title is often considered the ultimate peace of mind for property owners in the Philippines. However, a clean Torrens title can suddenly be clouded by a legal annotation known as an Adverse Claim.

For property buyers, owners, and real estate practitioners, understanding the nature, requisites, and effects of an adverse claim is crucial to protecting proprietary rights.

What is an Adverse Claim?

An adverse claim is a formal notice annotated on a Transfer Certificate of Title (TCT) or Original Certificate of Title (OCT). Its primary purpose is to apprise the whole world that a third party is claiming a right, interest, or lien over a registered piece of land, adverse to the registered owner.

It acts as a warning to potential buyers, mortgagees, or transferees that the property is subject to a controversy and that whoever deals with said property does so at their own peril.

The Legal Basis

The governing law on adverse claims is Section 70 of Presidential Decree No. 1529, otherwise known as the Property Registration Decree.

Section 70 (in part): "Whoever claims any part or interest in registered land adverse to the registered owner, arising subsequent to the date of the original registration, may, if no other provision is made in this Decree for registering the same, make a statement in writing setting forth fully his alleged right or interest, and how or under whom acquired, a reference to the certificate of title of the land or a description of the land in which the right or interest is claimed, and the place of residence or business of the adverse claimant..."

Requisites for a Valid Adverse Claim

An adverse claim cannot be annotated out of mere whim. To be registered by the Register of Deeds (RD) and sustained by courts, it must meet specific formal and substantive requirements:

Written Statement/Affidavit: The claimant must execute an Affidavit of Adverse Claim.
Sworn and Notarized: The statement must be signed and sworn to before a notary public.
Specific Details: The affidavit must state:
The alleged right or interest claimed.
How or under whom the right was acquired.
The certificate of title number.
A clear description of the land.
Designated Address: It must provide the residence or place of business of the claimant where all notices may be served.

The "Subsequent to Registration" Rule

An adverse claim is only valid if the right or interest arose subsequent to the date of the original registration of the land. If the right existed prior to the issuance of the title and the claimant failed to assert it during the registration proceedings, they cannot use an adverse claim as a remedy.

The 30-Day Lifespan and the Sajonas Doctrine

A literal reading of Section 70 of PD 1529 states that "the adverse claim shall be effective for a period of thirty days from the date of registration." This has led to a common misconception that an adverse claim automatically expires and vanishes after 30 days. However, Philippine jurisprudence has firmly clarified this rule through the landmark case of Sajonas v. Court of Appeals (G.R. No. 102377).

The Supreme Court ruled that the 30-day period does not automatically cancel the adverse claim.

The Reason: If the claim were automatically cancelled, the purpose of the law—which is to protect the claimant's interest while the main issue is litigated—would be defeated.
The Rule: For an adverse claim to be removed from the title, a formal petition for cancellation must be filed, or a verified request must be made after the lapse of the 30 days, and the Register of Deeds must explicitly cancel the annotation. Until cancelled, the cloud on the title remains.

When is an Adverse Claim Improper?

An adverse claim is a remedy of last resort. It is only applicable if no other provision is made in PD 1529 for registering the claimant's right or interest.

Adverse Claim vs. Notice of Lis Pendens

The most common misuse of an adverse claim involves overlapping with a Notice of Lis Pendens (pending litigation).

Adverse Claim: Proper when a dispute exists but no formal court case has been filed yet (e.g., a buyer under a Contract to Sell claims ownership because the seller refuses to execute the Deed of Sale).
Notice of Lis Pendens: Proper when a civil action involving the ownership, possession, or title of the property is already pending in court.

If a court case has already been instituted, filing an adverse claim is improper; the correct remedy is to annotate a Notice of Lis Pendens.

How to Cancel an Adverse Claim

A registered owner whose land title is plagued by an adverse claim can seek its removal through two primary avenues:

1. Administrative Cancellation

If the 30-day period has lapsed and the claimant has not filed a court case to back up their claim, the registered owner may file a verified petition/letter-request before the Register of Deeds requesting the cancellation of the annotation.

2. Judicial Cancellation

If there is a dispute regarding the validity of the claim, or if the Register of Deeds refuses to cancel it administratively, the registered owner must file a Petition for Cancellation of Adverse Claim in the Regional Trial Court (RTC) where the land is located.

The court will hold a speedy hearing to determine if the claim is frivolous, vexatious, or invalid. If the court finds the claim baseless, it will order the Register of Deeds to cancel the annotation.

Summary for Buyers and Property Owners

Scenario	Strategic Action
You are buying a property with an Adverse Claim:	Do not proceed until the owner has successfully cancelled the annotation through the Register of Deeds or a court order. You cannot claim to be a "buyer in good faith" if you buy a property with an existing adverse claim.
Your property was unjustly slapped with an Adverse Claim:	File a petition for cancellation in court. If the claim is proven to be frivolous or intended merely to harass, you may claim damages against the adverse claimant under Section 70 of PD 1529.
You have an unrecorded right over a titled property:	File an Affidavit of Adverse Claim immediately with the Register of Deeds to protect your interest before the owner sells it to an innocent third party.