Mortgage in Bad Faith: Due Diligence in Unregistered Land Transactions

Philippine National Bank v. Court of Appeals and Consuelo Yu (G.R. No. 81524, February 4, 2000) clarifies the standard of care a bank must exercise when accepting unregistered land as collateral for a loan. The Supreme Court ruled that a mortgagee who fails to conduct a thorough investigation of the mortgagor's title acts in bad faith and cannot claim the protections given to innocent purchasers for value.

The Facts

In 1974, Manuel de los Santos obtained a ₱3,000 loan from Philippine National Bank (PNB) through its Laoag branch, offering a 56,290-square-meter agricultural parcel in Bangui, Ilocos Norte as collateral. When de los Santos defaulted, PNB moved to foreclose.

Consuelo Yu then filed a complaint claiming she was the true owner of the land. She presented evidence that the property was originally owned by Sy O, her mother-in-law, and was later transferred to her through her husband. Yu had been paying realty taxes on the property since the 1940s, and her niece, Dr. Leticia Go Garvida, had administered the land since 1952, collecting shares from tenants.

De los Santos, however, submitted to PNB an affidavit claiming his deceased father actually owned the land, although it was declared in Yu's name. Based on this affidavit, the tax declaration was cancelled and a new one issued in de los Santos' name. He then used this tax declaration to secure the loan.

The Issue

The central question was whether PNB acted in good faith when it accepted the mortgage on the unregistered land, entitling it to protection as an innocent mortgagee for value.

The Ruling

The Supreme Court denied PNB's petition and affirmed the lower courts' rulings that the mortgage was null and void. The Court held that PNB failed to exercise the due diligence required when dealing with unregistered land.

Why PNB Acted in Bad Faith

The Court found several red flags that should have prompted PNB to investigate further:

First, the tax declaration submitted by de los Santos was newly issued in 1974, and it clearly indicated on its face that it cancelled Tax Declaration No. 7591 in the name of Consuelo Yu. The previous owner's name was typewritten on the document itself.

Second, the supporting documents de los Santos submitted were contradictory. His affidavit claimed Yu was his "auntie" and his father owned the land. But a "Deed of Confirmation of Ownership" executed by his brothers stated Yu was their mother who died in 1970. Both claims were false—Yu was neither his aunt nor his mother.

Third, these documents were all recently dated at the time of the loan application, another suspicious circumstance.

The Court emphasized that these circumstances "would put a reasonable man to inquire into the basis of the cancellation of the previous declared owner's tax declaration or at least to require the defendant Manuel de los Santos to produce the document of conveyance." PNB failed to do this.

The Key Distinction: Registered vs. Unregistered Land

The Court drew a critical distinction between registered and unregistered land. Under the Torrens system, a certificate of title is generally incontrovertible, and persons dealing with registered land may rely on what appears on the certificate without investigating further.

However, this protection does not extend to unregistered land. In this case, because the property had no certificate of title, PNB was bound to exercise a higher degree of care. The Court quoted with approval the trial court's observation that PNB was "bound to know that which he has failed to find out due to his inaction or improvidence."

Practical Takeaways

• Banks and lenders must conduct thorough due diligence when accepting unregistered land as collateral. A tax declaration alone is not proof of ownership and cannot substitute for a proper investigation.
• Red flags on documents require action. A newly issued tax declaration showing a previous owner's name, contradictory ownership documents, or recently executed supporting papers should trigger deeper inquiry, not blind acceptance.
• The "innocent purchaser for value" protection applies primarily to registered land under the Torrens system. For unregistered land, the standard of care is higher, and a mortgagee cannot simply rely on documents presented by the mortgagor.
• A self-serving affidavit cannot transfer ownership. Tax declarations and affidavits are not modes of conveyance and cannot divest a true owner of title.
• Failure to investigate can result in liability. A mortgagee who acts in bad faith may be held jointly and severally liable for damages, including attorney's fees and costs.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.