Santiago vs. Jornacion

A biological father may file a petition under Rule 108 to establish his filiation with a child presumed legitimate under another man's marriage, and the presumption of legitimacy under Article 164 of the Family Code is a disputable presumption that may be overcome by biological or scientific evidence, including DNA testing under A.M. No. 06-11-5-SC.

Bernie Santiago claims to be the biological father of Maria Sofia Gabutin Jornacion (Sofia), born on March 24, 2001 to Magdalena O. Gabutin. At the time of Sofia's birth, Magdalena was still legally married to—though separated in fact from since 1999—Rommel C. Jornacion, with whom she had two children, Kevin Karl and Samantha Gabrielle. Because Magdalena remained married to Rommel, Rommel was registered as Sofia's father in her birth certificate to spare Magdalena from social stigma, and Sofia carried the surname Jornacion. The marriage between Rommel and Magdalena was subsequently declared void ab initio. Magdalena died on October 23, 2012, prompting Bernie to seek judicial establishment of his paternity. The Family Code's provisions on legitimacy (Articles 164, 166, 170, 171) and filiation (Articles 172, 175), together with Rule 108 of the Rules of Court and A.M. No. 06-11-5-SC (Rule on DNA Evidence), form the statutory and procedural framework governing the dispute.

Bernie Santiago and Magdalena O. Gabutin had a romantic relationship that produced a child, Maria Sofia Gabutin Jornacion (Sofia), born on March 24, 2001. At the time of Sofia's birth, Magdalena was still legally married to—though separated in fact from since 1999—Rommel C. Jornacion, with whom she had two children, Kevin Karl and Samantha Gabrielle. Because Magdalena was still married to Rommel and to spare her from social embarrassment, Rommel was registered as Sofia's father in her birth certificate, and Sofia carried the surname Jornacion. Bernie and Magdalena lived together as husband and wife, while Rommel never returned to Magdalena and her children after their separation. Bernie financially supported Sofia's daily needs and education from the time of her birth and continued to do so even after he left the Philippines, as evidenced by foreign money transmittal receipts. The marriage between Rommel and Magdalena was subsequently declared void ab initio, with the decree of annulment registered with the Civil Registrar of Malabon City.

On October 23, 2012, Magdalena died. Her death prompted Bernie to seek formal judicial establishment of his paternity over Sofia. On May 17, 2013, Bernie filed a petition with the RTC of Marikina City seeking to establish his paternity and to correct entries in Sofia's birth certificate—specifically changing her surname from Jornacion to Santiago, her father's name from Rommel to Bernie, his citizenship from Filipino to American, his occupation from "Employee" to "U.S. Government Employee," his age from 26 to 43, the date and place of marriage of parents from "November 12, 1992, Quezon City" to "Not Married," and the informant's relationship from "Father" to "None." In support, Bernie submitted photographs of Sofia with either Magdalena, Bernie, or both; foreign money transmittal receipts; passports; an affidavit from Kevin Jornacion; and DNA test results from DNA Diagnostic Center in Ohio, U.S.A., with samples collected through its Philippine corporate partner, Infinitech Center in Quezon City.

The Republic, through the Office of the Solicitor General, opposed the petition, arguing that Sofia is presumed legitimate under Article 164 of the Family Code, that her legitimacy can only be impugned by Rommel or his heirs in a direct action within the prescriptive period under Article 170, and that Bernie is not the proper party to file such an action. Bernie filed a Motion for Leave of Court to File an Amended Petition impleading Sofia, Kevin, Samantha, and his siblings (Nicanor, Victorino, and Teresita Santiago-Francisco) as additional parties, acknowledging his initial failure to implead all affected parties. The RTC, however, dismissed the original petition in its Order dated November 12, 2013, finding that the petition was实质ally one to impugn Sofia's legitimacy—a remedy available only to Rommel or his heirs—and that equity could not justify a petition contrary to law. The RTC deemed the motion for leave to file the amended petition moot and academic. Bernie's motion for reconsideration was denied on February 12, 2014.

On appeal, the Court of Appeals affirmed the dismissal in its Decision dated May 23, 2016, holding that Bernie was not the proper party to impugn Sofia's legitimate status and that his petition constituted a collateral attack on Sofia's legitimacy. The CA denied Bernie's motion for reconsideration in its Resolution dated February 6, 2017. Notably, Rommel—though impleaded as a defendant in the original petition—never participated in the proceedings at any level, nor did he claim that Sofia is his daughter.

• Standing to Establish Filiation: Bernie argued that he has standing to file a petition to establish filiation under Articles 172 and 175 of the Family Code, and that limiting who may file only to the husband or his heirs under Articles 170 and 171 unjustifiably restricts the right to establish filiation with a biological father.
• Disputable Presumption of Legitimacy: Bernie maintained that the presumption of legitimacy is merely disputable and may be overcome by scientific evidence, including DNA testing, which he expressed willingness to undergo in the Philippines to re-establish his filiation with Sofia.
• Best Interest of the Child: Bernie argued that humanitarian reasons and the paramount interest of the child should outweigh the technical result of changing Sofia's status from legitimate to illegitimate, stressing that since Magdalena's death, Sofia has been living with Bernie's family and that Rommel abandoned Sofia and her half-siblings.
• Adversarial Proceeding: Bernie contended that the inclusion of Rommel in the petition converted it into an adversarial proceeding where Rommel could contest the petition, and that the CA incorrectly relied on Braza vs. The City Civil Registrar of Himamaylan City, Negros Occ. in determining the propriety of an action under Rule 108.
• OSG's Belated Comment: Bernie questioned the RTC's consideration of the OSG's Comment/Opposition, arguing it was filed beyond the 15-day period under Section 5, Rule 108 of the Rules of Court.

• Presumption of Legitimacy: The OSG countered that Sofia is presumed the legitimate child of Magdalena and Rommel under Article 164 of the Family Code, and that the fact of a romantic relationship between Magdalena and Bernie cannot overturn this presumption.
• Proper Party and Collateral Attack: The OSG argued that only Rommel or his heirs may impugn Sofia's legitimacy in a direct action within the periods provided by Article 170, and that Bernie's petition is a collateral attack on Sofia's legitimate status.
• Improper Remedy Under Rule 108: The OSG maintained that Sofia's legitimacy cannot be assailed through a special proceeding for correction of entry under Rule 108, nor filed twelve years after Sofia's birth, nor instituted by Bernie who is not the proper party under Articles 170 and 171.
• RTC's Inherent Power to Correct Error: The OSG argued that while the RTC initially found the petition sufficient in form and substance, it retained the power to correct its error upon discovering the inappropriateness of the petition under Rule 108.
• Contrary to Family Code Provisions: The OSG asserted that the petition is contrary to Articles 164, 166, 170, and 171 of the Family Code, citing De Jesus vs. Estate of decedent Dizon where the Court dismissed a third party's claim of biological fatherhood over children born during a valid marriage.

• Standing: Whether a putative biological father has standing to file a petition under Rule 108 to establish his filiation with a child presumed legitimate under another man's marriage.
• Presumption of Legitimacy: Whether the presumption of legitimacy under Article 164 of the Family Code is conclusive or may be overcome by scientific evidence such as DNA testing.
• Propriety of Rule 108: Whether a petition under Rule 108 is the appropriate adversary proceeding to establish filiation and correct entries in the civil register, including changes affecting a child's status.
• Best Interest of the Child: Whether the best interest of the child warrants allowing the petition despite the potential change in the child's status from legitimate to illegitimate.

• Standing: Yes. A biological father may file a petition to establish filiation under Articles 172 and 175 of the Family Code; the limitations in Articles 170 and 171 apply only to actions to impugn legitimacy, not to actions to establish filiation.
• Presumption of Legitimacy: No, the presumption is not conclusive. It is a disputable presumption that may be overcome by biological or scientific evidence under Article 166(2) of the Family Code and A.M. No. 06-11-5-SC.
• Propriety of Rule 108: Yes. Rule 108, when all procedural requirements including notice and publication are complied with, is the appropriate adversary proceeding to effect substantial corrections in the civil register, including entries involving a child's status.
• Best Interest of the Child: Yes. The best interest of the child is a paramount consideration, and maintaining a child's presumed legitimate status may not necessarily serve that interest where the presumed father has abandoned the child and never participated in the proceedings.

• Standing: Articles 170 and 171 of the Family Code, which limit who may impugn a child's legitimacy to the husband or his heirs, should not be read in isolation to bar a biological father from establishing filiation under Articles 172 and 175. Statutory construction requires that every part of a statute be considered together with other parts, keeping subservient to the general intent of the whole enactment. To dismiss a petition to establish filiation merely because Articles 170 and 171 limit who may impugn legitimacy unjustifiably limits the instances when a child's filiation with a biological father may be established. It was never the legislators' intent to elevate the presumption of legitimacy above a proven fact. The OSG's interpretation was rejected as a myopic reading of the Family Code that renders the provisions on establishing filiation inoperative.

• Presumption of Legitimacy: The presumption of legitimacy is merely a disputable presumption—an assumption of fact resulting from a rule of law, not evidence itself. While every reasonable presumption must be made in favor of legitimacy, upholding such presumption despite a contrary scientifically-proven fact becomes unreasonable, if not totally absurd. Article 166(2) of the Family Code allows legitimacy to be impugned on biological or scientific grounds. The same type of scientific proof should be allowed to establish filiation under Article 175 in relation to Article 172(2)(2)—"any other means allowed by the Rules of Court." DNA evidence under A.M. No. 06-11-5-SC is one such means. Section 9(c) of the Rule on DNA Evidence provides that DNA results excluding the putative parent are conclusive proof of non-paternity, while a Probability of Paternity of 99.9% or higher creates a disputable presumption of paternity. Since Bernie is willing to undergo DNA testing, he should be afforded the opportunity to present this fact.

• Propriety of Rule 108: Citing Lee vs. Court of Appeals, the Court clarified that Rule 108, when all procedural requirements are followed, is the appropriate adversary proceeding to effect substantial corrections and changes in the civil register. Lee overturned Republic vs. Labrador, which had erroneously held that Rule 108 cannot be used to modify substantive rights such as legitimacy. Article 412 of the Civil Code refers to the court's power to change all entries in the civil register, including status and nationality—not merely clerical errors, as evidenced by the separate enactment of Republic Act No. 9048 for clerical corrections. The Amended Petition impleading Sofia, Kevin, Samantha, and Bernie's siblings illustrates Bernie's earnest efforts to include all affected parties, curing any procedural defect through publication under Republic vs. Uy. Unlike in Republic vs. Coseteng-Magpayo and Labayo-Rowe vs. Republic, Bernie's original petition already impleaded the City Civil Registrar and the legitimate father, Rommel.

• Best Interest of the Child: The Convention on the Rights of the Child mandates that the best interests of the child shall be a primary consideration in all actions concerning children. Citing Pablo-Gualberto vs. Gualberto V, the Court held that the welfare of minors is the paramount consideration, requiring courts to account for all relevant circumstances bearing on the children's well-being and development. In this case, Rommel abandoned Sofia and her siblings, never participated in the proceedings despite being impleaded, and Bernie has been supporting Sofia since birth. Maintaining Sofia's legitimate status under these circumstances may not serve her best interest, as the "protection" afforded by the presumption of legitimacy becomes "more apparent than real." If Bernie's allegations are true, Sofia could never be recognized as Bernie's child—even with accurate scientific proof—simply because Rommel never impugned her presumed legitimacy. Bernie, though able to financially support Sofia, could not avail himself of remedies available to a legally recognized father, such as petitioning for Sofia's American citizenship.

• Presumption of Legitimacy as a Disputable Presumption — The presumption that a child born in wedlock is legitimate is a disputable presumption, not a conclusive one. It may be overthrown by evidence to the contrary, including biological or scientific proof under Article 166(2) of the Family Code. A presumption is merely an assumption of fact resulting from a rule of law; it is not evidence but affects the burden of offering evidence. The Court applied this by holding that Bernie's willingness to undergo DNA testing justified affording him the opportunity to present scientific evidence to overcome the presumption.

• Harmonization of Statutory Provisions — Every part of a statute must be considered together with other parts, keeping subservient to the general intent of the whole enactment. Every effort must be made to harmonize provisions and avoid rendering other provisions inoperative. The Court applied this by harmonizing Articles 170-171 (who may impugn legitimacy) with Articles 172 and 175 (how filiation may be established), holding that the former should not bar the latter.

• Rule 108 as Appropriate Adversary Proceeding for Substantial Corrections — Rule 108 of the Rules of Court, when all procedural requirements including notice and publication under Sections 3 to 5 are complied with, is the appropriate adversary proceeding to effect substantial corrections and changes in the entries of the civil register, including entries involving a child's status, legitimacy, and nationality. This doctrine was established in Lee vs. Court of Appeals, overturning Republic vs. Labrador.

• Best Interest of the Child as Paramount Consideration — In all actions concerning children, whether undertaken by public or private social welfare institutions, courts of law, administrative authorities, or legislative bodies, the best interests of the child shall be a primary consideration, pursuant to the Convention on the Rights of the Child. The Court applied this to justify allowing a petition that would change a child's status from legitimate to illegitimate, where maintaining the presumed legitimate status would not serve the child's welfare.

• DNA Evidence in Filiation Proceedings — DNA evidence is admissible to establish or disprove paternity. Under Section 9(c) of A.M. No. 06-11-5-SC (Rule on DNA Evidence): (1) DNA results that exclude the putative parent from paternity are conclusive proof of non-paternity; (2) if the Probability of Paternity is less than 99.9%, the results are corroborative evidence; and (3) if the Probability of Paternity is 99.9% or higher, there is a disputable presumption of paternity. DNA testing is recognized as a "scientific reason" under Article 166(2) of the Family Code and as "any other means allowed by the Rules of Court" under Article 172(2)(2) in relation to Article 175.

• "Albeit every reasonable presumption must be made in favor of legitimacy, upholding such presumption despite the presence of a contrary scientifically-proven fact becomes unreasonable - if not totally absurd." — This passage articulates the ratio decidendi that the presumption of legitimacy, while entitled to every reasonable presumption in its favor, must ultimately yield to scientifically proven fact.

• "The presumption meant to protect the child should not be used to defeat the truth." — This encapsulates the Court's reasoning that the protective purpose of the presumption of legitimacy should not operate to deny a child the right to know and be recognized by her true biological father.

• "To hastily dismiss a petition to establish filiation (under Articles 172, in relation to 175, of the Family Code) merely because Articles 170 and 171 only allow the husband or his heirs to impugn the child's legitimate status unjustifiably limits the instances when a child's filiation with his/her biological father may be established." — This states the Court's holding on standing, applying the principle of harmonization to the Family Code's provisions on impugning legitimacy and establishing filiation.

• "while scientific proof is allowed to impugn legitimacy under Article 166(2) of the Family Code, the same type of proof should also be allowed to establish filiation under Article 175 in relation to Article 172, paragraph 2(2) - i.e., any other means allowed by the Rules of Court." — This passage bridges the provisions on impugning legitimacy and establishing filiation, establishing that DNA evidence serves both functions under the Family Code.

• Republic vs. Uy, 716 Phil. 254 (2013) — Followed. The Court relied on this case for the principle that a petitioner's failure to implead and notify affected or interested parties may be cured by publication of the notice of hearing if the petitioner exerted earnest efforts in bringing the said parties to court.

• Lee vs. Court of Appeals, 419 Phil. 392 (2001) — Followed. The Court relied on this case for the doctrine that Rule 108, when all procedural requirements are followed, is the appropriate adversary proceeding to effect substantial corrections and changes in the civil register, including status.

• Republic vs. Labrador, 364 Phil. 934 (1999) — Overturned (by Lee). The Court noted that Labrador erroneously held that Rule 108 cannot be used to modify, alter, or increase substantive rights such as those involving legitimacy or illegitimacy of a child.

• Estate of Ong vs. Diaz, 565 Phil. 215 (2007) — Followed. The Court found striking factual similarities and relied on its holding that the presumption of legitimacy is not conclusive and may be overthrown by evidence to the contrary, including DNA testing, affirming the remand for DNA analysis.

• De Jesus vs. Estate of decedent Dizon, 418 Phil. 768 (2001) — Cited by the OSG but distinguished. The OSG invoked this case for dismissing a third party's claim of biological fatherhood over children born during a valid marriage; the Court found the instant case meritorious notwithstanding.

• Republic vs. Coseteng-Magpayo, 656 Phil. 550 (2011) — Distinguished. The Court distinguished this case because Bernie's original petition already impleaded the City Civil Registrar and the legitimate father, unlike in Coseteng-Magpayo.

• Labayo-Rowe vs. Republic, 250 Phil. 300 (1998) — Distinguished. Similarly distinguished on the basis that Bernie had already impleaded key interested parties in his original petition.

• Pablo-Gualberto vs. Gualberto V, 500 Phil. 226 (2005) — Followed. The Court relied on this case for the principle that the welfare of minors is the paramount consideration and that courts must account for all relevant circumstances bearing on the children's well-being and development.

• Braza vs. The City Civil Registrar of Himamaylan City, Negros Occ., 622 Phil. 654 (2009) — Noted. Bernie argued the CA incorrectly relied on this case; the Court implicitly agreed by granting the petition.

• Article 164, Family Code — Presumes children conceived or born during a valid marriage as legitimate. The OSG invoked this to argue Sofia is presumed legitimate; the Court held this presumption is disputable and may be overcome by scientific evidence.

• Article 166, Family Code — Enumerates the exclusive grounds for impugning legitimacy, including paragraph (2): biological or other scientific reasons proving the child could not be that of the husband. The Court relied on this provision to allow scientific evidence, including DNA testing, to overcome the presumption of legitimacy.

• Articles 170 and 171, Family Code — Limit who may impugn legitimacy (the husband or, in proper cases, his heirs) and prescribe the periods for doing so. The Court held these provisions govern actions to impugn legitimacy and should not be read to bar actions to establish filiation under Articles 172 and 175.

• Article 172, Family Code — Establishes how legitimate filiation is proven: (1) by the record of birth in the civil register or a final judgment, or (2) by admission of legitimate filiation in a public document or private handwritten instrument. In the absence of these, filiation may be proved by open and continuous possession of the status of a legitimate child, or by any other means allowed by the Rules of Court and special laws.

• Article 175, Family Code — Provides that illegitimate children may establish their illegitimate filiation in the same way and on the same evidence as legitimate children. The Court relied on this provision, in relation to Article 172(2)(2), to allow DNA evidence as a means of establishing filiation.

• Article 412, Civil Code — Provides that no entry in the civil register shall be changed or corrected without a judicial order. The Court clarified this refers to the court's power to change all entries, including status and nationality, not merely clerical errors.

• Rule 108, Rules of Court — Governs cancellation or correction of entries in the civil register. The Court held it is the appropriate adversary proceeding for substantial corrections when procedural requirements, including notice and publication under Sections 3 to 5, are complied with.

• A.M. No. 06-11-5-SC (Rule on DNA Evidence), Section 9(c) — Provides standards for evaluating DNA testing results: exclusion of the putative parent is conclusive proof of non-paternity; a Probability of Paternity below 99.9% is corroborative evidence; and a Probability of Paternity of 99.9% or higher creates a disputable presumption of paternity.

• Republic Act No. 9048 — Authorizes administrative correction of clerical or typographical errors without judicial order, demonstrating that Article 412 of the Civil Code covers more than mere clerical errors and that judicial correction under Rule 108 extends to substantial changes.

• Convention on the Rights of the Child, Article 3(1) — Mandates that in all actions concerning children, the best interests of the child shall be a primary consideration. The Court invoked this to justify allowing the petition despite its effect on Sofia's status.

Leonen, Inting, Zalameda, and Dimaampao, JJ., concurred.