When a Lawyer Buys the Client's Land: Breach of Fiduciary Duty in Property Acquisition

A lawyer who quietly buys the same property his clients already purchased—using information learned in confidence—commits a serious breach of fiduciary duty. In Spouses Sabitsana v. Muertegui (G.R. No. 181359, August 5, 2013), the Supreme Court reminded lawyers that they owe clients undivided loyalty and cannot gamble on a client's word, believing it one moment and disbelieving it the next to serve their own interests.

The Facts

In 1981, Alberto Garcia sold a 7,500-square meter unregistered lot in Biliran to Juanito Muertegui through an unnotarized deed of sale. The Muertegui family took possession, planted coconut and ipil-ipil trees, and paid property taxes for years.

Ten years later, in 1991, Garcia sold the same lot to Atty. Clemencio Sabitsana, Jr.—the Muertegui family's own lawyer—through a notarized deed. Atty. Sabitsana registered the sale and had a new tax declaration issued in his name.

The lawyer claimed he investigated and found no record of the earlier sale. But the evidence showed that a member of the Muertegui family had told him they already bought the lot, and that he used his legal knowledge to register his purchase ahead of his clients.

The Issue

The central question: who had the better right to the lot—the first buyer who never registered, or the lawyer who bought later but registered first?

The Ruling

The Supreme Court denied the lawyer's petition and affirmed the rulings of the trial court and Court of Appeals.

Article 1544 of the Civil Code did not apply. Both lower courts erred in applying the double-sale rule under Article 1544, which governs registered land. Since the lot was unregistered, the applicable law was Act No. 3344, which provides for recording transactions over unregistered real estate. That law expressly states that registration is "without prejudice to a third party with a better right."

The first buyer had the better right. Juanito bought the lot in 1981; the lawyer bought it in 1991. When Garcia sold to the lawyer, he was no longer the owner—he had already sold the lot to Juanito. The principle nemo dat quod non habet (no one can give what he does not have) applied. The earlier sale's lack of notarization did not affect its validity; notarization is for convenience, not validity.

Registration does not vest title. The lawyer's registration of his purchase gave him no rights because his vendor had nothing left to sell. Registration merely evidences title; it does not create one.

The lawyer acted in bad faith. Atty. Sabitsana knew of the prior sale through confidential client information. Instead of advising his clients to register their purchase promptly, he bought the same lot and registered it ahead of them. The Court called this a "mercenary attitude" and "practically preyed on" his clients.

Fiduciary duty survives the engagement. Even if the attorney-client relationship had ended, a lawyer cannot represent an interest adverse to a former client on matters involving confidential information acquired during the representation.

Practical Takeaways

• Lawyers owe undivided loyalty. A lawyer cannot use confidential client information to buy property the client already purchased—even if the client's sale was unrecorded or unnotarized.
• For unregistered land, first in time prevails. Registration under Act No. 3344 does not defeat a prior unregistered sale. The first buyer with a better right wins.
• Notarization is not everything. A deed of sale over real property need not be notarized to be valid between the parties; notarization is a formality, not a requirement for validity.
• Registration does not cure a defective title. Registering a sale cannot validate a purchase from someone who no longer owns the property.
• For clients: register promptly. Had the Muertegui family registered their 1981 sale, the later dispute might have been avoided entirely.

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