Deed of Assignment Validity: Signature Authenticity and Corporate Share Transfers in the Philippines

When a shareholder signs a deed of assignment in blank, intending it to be filled up later, questions about the document's validity can arise—especially when the signature was made years before the date written on the deed. The Supreme Court addressed this issue in Borromeo v. Sun (G.R. No. 75908, October 22, 1999), clarifying how courts evaluate signature authenticity and the validity of corporate share transfers.

The Facts of the Case

Amancio Sun filed a case against Federico O. Borromeo, Lourdes O. Borromeo (as corporate secretary), and Federico O. Borromeo, Inc. (F.O.B., Inc.) to compel the transfer of 23,223 shares of stock registered in Federico's name. Sun claimed the shares actually belonged to him and were placed in Federico's name "only to give the latter personality and importance in the business world."

Sun presented a Deed of Assignment dated January 16, 1974, which Federico allegedly executed in his favor. Federico denied signing the deed, claiming his signature was forged.

The Issue

The central question was whether the signature on the Deed of Assignment was genuine, and consequently, whether the deed validly transferred the shares to Sun.

The Court's Ruling

The Supreme Court dismissed the petition and affirmed the lower courts' findings that the signature was genuine. The Court relied on several key principles:

1. Factual findings of the Court of Appeals are conclusive. The Court reiterated the well-settled rule that factual findings of the Court of Appeals are binding on the parties and not reviewable by the Supreme Court—especially when the appellate court affirms the trial court's findings.

2. Expert testimony is evaluated by courts. The Court emphasized that courts may place whatever weight they deem appropriate on expert witness testimony. The petitioners' expert witness, Segundo Tabayoyong, had limited his comparison of the questioned signature to Federico's 1974 signature, despite having access to earlier standard signatures. The Court noted this omission was telling, as the questioned signature was "strikingly similar" to Federico's 1950-1954 signatures.

3. A blank deed of assignment is valid. The Court found that the Deed of Assignment was embodied in a blank form for the assignment of shares with authority to transfer shares in the corporation's books. It was intended to be signed in blank to facilitate the assignment of shares from one person to another at any future time.

The Court drew an analogy to the Negotiable Instruments Law, which allows blanks in instruments to be filled up by the holder, with the signing in blank being with assumed authority to do so. The exact section number is not specified in the decision text available.

4. Discrepancy between signature date and document date is not fatal. The fact that the signature was made circa 1954-1957 while the deed was dated 1974 did not make the document a forgery. The Court explained that the shares were registered in Federico's name merely to give him business standing, so Sun needed counter-evidence of ownership—hence the blank deed to be filled up when needed.

Practical Takeaways

• Blank deeds of assignment are valid in Philippine law. A shareholder may sign a deed of assignment in blank, with the understanding that the holder can fill in the details later. This is analogous to the Negotiable Instruments Law's treatment of blanks in negotiable instruments.

• Signature authenticity is a factual question. Courts rely on expert testimony and document examination, but ultimately, the trier of fact determines credibility. A signature made years before the document's date does not automatically invalidate the deed.

• Expert witnesses must be thorough. An expert who selectively compares signatures—avoiding comparisons that might reveal the truth—risks losing credibility with the court.

• Corporate share transfers require proper documentation. When shares are held in another person's name, a deed of assignment serves as counter-evidence of ownership. Ensure such documents are properly executed and retained.

• The Supreme Court generally defers to factual findings. Unless there is grave abuse of discretion, the High Court will not disturb the factual conclusions of lower courts, especially when they are consistent.

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