Early life
Mario Victor Famorca Leonen was born on December 29, 1962, to Mauro Leonen (d. 1970) and Adrelina Famorca. His parents were married in Vigan, Ilocos Sur, and later settled in Baguio, Benguet, where he was born. He is the second of six children and is of Ilocano descent. His mother is a pharmacist. His father was a human rights lawyer who represented indigenous Ibaloi people in land title disputes. Mauro died in a car accident in San Manuel, Tarlac, on June 26, 1970. Leonen decided to pursue a legal career in the second grade.Education and early career
Academic career
Leonen joined the College of Law of the University of the Philippines's faculty in 1989 as a professorial lecturer in Philippine Indigenous Law. He became an assistant professor during Dean Pacifico Agabin's term and began working as an academic administrator under Dean Merlin M. Magallona. In 2000, he became the University General Counsel for the UP System, and in 2005, he became the first Vice President for Legal Affairs of the UP System. Leonen has taught 20 different subjects in the law school. He also directed the college's clinical legal education program and has lectured and been a resource speaker at national and international forums in Hong Kong, Thailand, Malaysia, Indonesia, Japan, Spain, Netherlands, Australia, Estonia, and the United Kingdom. In 2008, the Board of Regents of the UP System selected him as the eean of the University of the Philippines College of Law. He served as dean until Danilo L. Concepcion was appointed in June 2011. Leonen has also provided legal commentary for television networks such as ABS-CBN andGovernment chief peace negotiator (2010–2012)
In July 2010, President Benigno Aquino III named Leonen as the Philippine government's chief negotiator with the Moro Islamic Liberation Front. Under his leadership, the government successfully created a framework agreement with the MILF to establish the Bangsamoro political entity, replacing the Autonomous Region for Muslim Mindanao. His performance was praised, bringing new hopes for lasting peace in war-tornAssociate Justice of the Philippines (since 2012)
On November 21, 2012, President Benigno Aquino III appointed Leonen as the 172nd Associate Justice of the Supreme Court of the Philippines at the age of 49, making him the youngest justice named to the Court since 1938. In ''Belgica v. Executive Secretary'', the landmark case where the Court declared the Priority Development Assistance Fund unconstitutional, Leonen wrote a separate concurring opinion demonstrating a command of logic and the law to support the unconstitutionality of pork barrel. He stated, "A member of the House of Representatives or a Senator is not an automated teller machine from which the public can withdraw funds for sundry private purposes." In civil law, Leonen penned many notable decisions, including ''Tan-Andal v. Andal'', which removed the requirement of medical or expert witnesses for declaring a marriage null due to psychological incapacity under the Family Code. The new rule requires only totally antagonistic personality structures resulting in the inevitable breakdown of the marriage. The incapacity to fulfill essential marital obligations need only be manifest specifically toward that spouse to declare the marriage void ab initio.Dissents
Leonen is known for his frequent dissents. In an interview with ''As Bar Chairperson of the 2020-2021 Bar Examination
In theThe New Lawyer's Oath
The Supreme Court En Banc approved the Code of Professional Responsibility and Accountability (CPRA) on April 11, 2023, after a nationwide caravan with members of the legal community and the public. The new CPRA was launched on April 13, 2023, at the Manila Hotel before members of the legal community. The event included the introduction of the New Lawyer's Oath, authored by Senior Associate Justice Leonen.Proposed Writ of Kalayaan
On May 25, 2024, Leonen announced at his Integrated Bar of the Philippines Caloocan-Malabon-Navotas Chapter lecture at the Manila Hotel that the Supreme Court of the Philippines was drafting the "Writ of Kalayaan," a writ and constitutional remedy to address prison overcrowding of detention suspects (PDLs) and protect their human and legal rights. The World Prison Brief ranks the Philippines third in prison occupancy (362%). The Commission on Audit's 2022 review revealed that 323 of 478 jails are congested. However, on October 19, 2023, Bureau of Corrections's Gregorio Catapang Jr. contradicted the legal remedy recommended by the SC’s judicial panel "Committee on Human Rights and International Humanitarian Law" on December 19, 2022, citing Republic Act 10575 (Bureau of Corrections Act of 2013), RA 11928, and the Department of Justice's 5-year Development and Modernization Plan 2023-2028.Impeachment complaint
In December 2020, Edwin Cordevilla, claiming to be the secretary general of the Filipino League of Advocates for Good Government and represented by lawyer Larry Gadon, filed an impeachment complaint against AJ Marvic Leonen. The complaint alleged that SAJ Leonen had been “incompetent and negligent” for failing to resolve 37 cases within the required period and lacked integrity for not filing his SALN for 15 years. Under the 1987 Constitution of The Philippines, grounds for impeachment include culpable violation of the Constitution, treason, bribery, graft and corruption, other high crimes, or betrayal of public trust. Leonen was accused of culpable violation of the Constitution for failing to resolve cases in a timely manner and betrayal of public trust for not filing his SALN. Despite the likelihood of a trial, Leonen received public support, especially from the legal and academic community. On December 10, 2020, the UP College Of Law released a statement dismissing the impeachment complaint, stating that Leonen “has expressed consistently, in his decisions and dissents, a commitment to academic rigor, principled discourse, creative expression, and courageous authenticity” and that the act was “a latest assault to send our nation further down the dark road, especially while a global pandemic still hangs over all our heads and threatens to bring our society into despair and destitution.” Senator Risa Hontiveros also called the impeachment unnecessary and counterproductive, deeming it a “distraction that will only drag lawmakers and the public into a pointless political fiasco” amid the pandemic. On May 27, 2021, the impeachment hearing began, and 44 lawmakers immediately found the complaint lacked sufficient evidence. Under the Philippine Rules of Court, “a witness can testify only to those facts which he knows of his personal knowledge; that is, which are derived from his own perception, except as otherwise provided in these rules (Section 36 of Rule 130).” The supporting documents used were photocopies or newspaper articles that did not manifest personal knowledge or authentic records, proving the case groundless. Leonen released a statement via his Chambers, posted on his Twitter account, expressing thankfulness for the support from lawyers, professors, and other workers in the Judiciary, adding that " emust courageously focus on the essentials: do what is right at the right time in the right way, serve our people and serve them well."Personal life
Leonen is divorced and has one daughter, Lian Laya (nicknamed ''"Malaya"'' or "free"). Leonen and his former spouse have been actively co-parenting Lian Laya since 2004. In a 2013 interview with Ces Drilon, he revealed that he would trade his job to be a full-time father. Leonen has a following among law students and the youth, often posting jokes on love and beliefs based on his favorite books on Twitter and in graduation speeches and socio-political forums. Leonen has been a vegan since 2017, advocating for plant-based diets as an ethical and ecological choice and opposing animal-sourced products due to their contribution to global warming and ecological destruction. Leonen is also a fountain pen aficionado and advocate, supporting local pen enterprises and attending fountain pen events in Manila. He enjoys photography (often street photography) as a hobby and maintains an Instagram account to showcase his work. He is fluent in Filipino, English, and Ilocano. He has a Cordilleran-inspired tattoo depicting a lizard around his right wrist, with designs featuring combinations of snake and centipede symbolisms (called "tinulipao", "tab-whad", "inang-oo" and "gayaman").References
{{DEFAULTSORT:Leonen, Marvic 1962 births Living people Associate justices of the Supreme Court of the Philippines People from Baguio Columbia Law School alumni 20th-century Filipino lawyers 21st-century Filipino judges Filipino environmentalists University of the Philippines Diliman alumni Academic staff of the University of the Philippines Benigno Aquino III administration personnel Ilocano people