Atty. Rainier Mamangun is a Founding Partner of the LMJA Law Office.
His expertise in Family Law and Real Estate Law covers representation and advisory services in annulment, declaration of nullity of marriage, recognition of foreign divorce, child custody, spousal and child support, adoption, and domestic abuse cases, among others. For almost two decades, he has worked on over 300 family law-related cases.
He has also provided services to a multitude of clients, both locals and foreigners, in the areas of property purchase; guidance in investments on real properties in the Philippines; transfer & registration of title; expropriation; due diligence; contract drafting & review; cases before the Human Settlements Adjudication Commission; cases filed with the regular courts such as for ejectment, reconstitution of lost title, issuance of new title, reconveyance, cancellation of adverse claim, breach of contract, and settlement of estate, among others. His years of experience allow him to address his clients' concerns effectively and facilitate a cost-efficient and successful accomplishment of their objectives.
In 2013, Atty. Mamangun was the recipient of the Certificate of Selection in the area of Family Law from Legal’s Finest -- a premier guide to the world’s leading attorneys based in the United Kingdom. In 2020, he was the awarded the Certificate of Excellence from Advisory Excellence, a London-based organization which profiles the best legal advisers around the globe, for his outstanding performance in the area of Family Law. In 2021, he became one of the select few to be invited to the prestigious Asociacion Europea de Abogados, the largest network of lawyers in the world based in Alicante, Spain. After a rigorous selection and judging process, Lawyer Monthly, a legal publication based in the United Kingdom, has recently bestowed upon our Atty. Rainier Mamangun the Lawyer of the Year Award in the field of Family Law for the Year 2021. In 2022, his Firm was profiled on Global Law Experts as its "Recommended Firm" in the area of Real Estate in the Philippines. GLE is the premier guide to leading attorneys throughout the world with member firms from over 140 countries in over 50 practice areas.
Prior to establishing the Firm in 2004, Atty. Rainier Mamangun was a lawyer for the Department of Foreign Affairs (DFA) where he worked on labor, civil, and criminal cases involving migrant workers and overseas Filipinos in distress in conjunction with Philippine Embassies and Consulates across the globe. Atty. Mamangun is adept at handling cases in and out of court. His training with the DFA enabled him to hone his diplomatic skills which now prove crucial in his dealings and negotiations with the court and the opposition. His skills at legal drafting and the defense of existing legislation were developed through years of service at the Office for Migrant Workers Affairs and in appearances before Congressional hearings and various inter-agency meetings that dealt with law and policy formulation relating to the welfare of Filipinos overseas. He had, for instance, defended the constitutionality of the "Migrant Workers' Act" before the Court of Appeals in coordination with the Office of the Solicitor General. He spearheaded various missions to Malaysia, Indonesia, East Timor, Nepal, India and Saudi Arabia to protect the interest of the OFW (Overseas Filipino Worker); undertook diplomatic representations with foreign governments in connection with the cases he handled, and appeared before foreign courts such as the Riyadh Grand Court – a rarity for Filipino lawyers. While at the DFA, he was instrumental in the rescue of countless victims of human smuggling and trafficking in Asia, and in saving Filipinos on death row in the Middle East.
In 2003, he was part of the Drafting Committee for the Magna Carta for Seafarers, a bill intended to promote the welfare of millions of Filipino seafarers worldwide. He also wrote a paper on "The Policies and Laws Governing Filipino Seafarers." He also wrote a paper on the "Comparative Analysis of the Philippine Arbitration Law and the UNCITRAL Model Law on International Commercial Arbitration" published in online legal websites. He briefly worked at the Prosecution Division of the Department of Interior and Local Government (DILG). He was also a Legal Consultant to the National Federation of Labor Unions (NAFLU), then one of the biggest labor federations in the Philippines.
He graduated from the University of the Philippines with a degree in Political Science and is a member of the Fraternal Order of Utopia based in Ateneo Law .
Atty. Jon Alamis specializes in business and corporate law, contracts, securities, direct foreign investment, regulatory compliance, and data privacy. His practice areas also include real estate and commercial litigation, including intra-corporate disputes and financial fraud.
He serves as a director and corporate secretary to several multinational and domestic firms, and represents the country’s top conglomerates across several industries, including real estate, food, and power. As part of his securities practice, he has registered various types of securities with the Securities and Exchange Commission. His real estate practice includes the registration of various types of real estate projects with the relevant regulatory agencies for leading developers in the country.
Over a period of almost two decades, Jon has also represented the interests of numerous multinational companies in several commercial and civil disputes. With his multidisciplinary team, he provides corporate clients rapid crisis management services, including contingency and sustainability planning.
Before joining LMJA, Jon was the General Counsel of Wall Street Global (Hong Kong and Manila Offices), where he was in charge of the licensing of securities with the Hong Kong Securities and Futures Commission, among others. He also conceptualized, organized and registered an investment adviser and a distributor of securities for the company to streamline its operations in Europe and the Asia Pacific.
He also served as the General Counsel for Rustan Supercenters, Inc. (Shopwise), and was a Senior Partner at Sebastian Liganor Galinato & Alamis Law.
Jon obtained his Juris Doctor degree at the Ateneo de Manila School of Law in 1999, and was admitted to the Philippine Bar in 2000.
He became a member of the Hong Kong Securities Institute in 2008.
Ceyhan has extensive experience in practice areas involving family law and domestic relations, including annulment of marriage, recognition of foreign divorce, child custody, and adoption. She is also adept in civil litigation cases such as ejectment, reconstitution or re-issuance of lost title, breach of contract, and partition of esta
Ceyhan has extensive experience in practice areas involving family law and domestic relations, including annulment of marriage, recognition of foreign divorce, child custody, and adoption. She is also adept in civil litigation cases such as ejectment, reconstitution or re-issuance of lost title, breach of contract, and partition of estate. She likewise handles criminal cases involving violence against women and sexual harassment, as well as labor cases before the National Labor Relations Commission.
Prior to joining LMJA, Ceyhan had her legal internship at the Department of Justice, where she was involved in immigration law. Thereafter, she worked as an associate at RCM Law, where she honed her research and legal writing skills.
Ceyhan obtained her Juris Doctor degree from De La Salle Lipa College of Law and was admitted to the Philippine Bar in 2022. She completed her bachelor’s degree in Legal Management at De La Salle Lipa.
Abigail began her legal career as a Tax Supervisor in one of the top auditing firms in the Philippines, where she amassed extensive experience and honed her skills in providing domestic tax analyses and advisory services for clients dealing with local revenue bodies. She is also adept in the areas of property purchase, investments in real
Abigail began her legal career as a Tax Supervisor in one of the top auditing firms in the Philippines, where she amassed extensive experience and honed her skills in providing domestic tax analyses and advisory services for clients dealing with local revenue bodies. She is also adept in the areas of property purchase, investments in real properties in the Philippines, transfer and registration of title, expropriation, contract drafting and review, and cases before the Human Settlements Adjudication Commission.
She also worked for the public sector through her internship with the Department of Justice, where she attended to refugee claims and addressed legal concerns relating to forced displacement, migration, and human trafficking and smuggling.
Abigail obtained her Juris Doctor degree from Arellano University School of Law in 2020, and was admitted to the Philippine Bar in 2022. She received her bachelor’s degree in Legal Management from San Beda University.
Ivy has extensive experience in providing legal assistance and advisory services in a wide range of family law and domestic relations cases, including annulment, declaration of nullity of marriage, and violence against women and children. She also provides services to clients on labor and immigration matters.
Before joining the Firm, Ivy
Ivy has extensive experience in providing legal assistance and advisory services in a wide range of family law and domestic relations cases, including annulment, declaration of nullity of marriage, and violence against women and children. She also provides services to clients on labor and immigration matters.
Before joining the Firm, Ivy had her internship at the Public Attorney's Office in Manila and at the National Union for People's Lawyer.
She obtained her Juris Doctor degree from the Lyceum of the Philippines College of Law in 2020, and her Bachelor’s Degree in Political Science from the University of Sto. Tomas in 2013.
Megan’s practice areas include corporate law, contracts, commercial litigation, intra-corporate disputes, estate planning and settlement of estates.
She serves as corporate secretary to several of LMJA’s clients, and regularly provides legal and advisory services to foreign and domestic firms. Her corporate practice includes company format
Megan’s practice areas include corporate law, contracts, commercial litigation, intra-corporate disputes, estate planning and settlement of estates.
She serves as corporate secretary to several of LMJA’s clients, and regularly provides legal and advisory services to foreign and domestic firms. Her corporate practice includes company formation, corporate housekeeping, corporate governance and regulatory compliance.
Megan also has experience in real estate disputes, and represents the country’s top real estate developers in civil and administrative litigation. As part of her commercial litigation practice, she represents clients in actions involving financial fraud and embezzlement.
Megan obtained her Juris Doctor degree from San Beda College Alabang – School of Law in 2019, and was admitted to the Philippine Bar in 2020. She completed her bachelor’s degree in Legal Management at San Beda University.
Nathalia’s practice areas include corporate law, data privacy and labor law. She renders advisory services on a daily basis to LMJA’s multinational and foreign clients, where her experience in the Office of the Deputy Privacy Commissioner of the National Privacy Commission has proven invaluable. Nathalia also has experience in immigratio
Nathalia’s practice areas include corporate law, data privacy and labor law. She renders advisory services on a daily basis to LMJA’s multinational and foreign clients, where her experience in the Office of the Deputy Privacy Commissioner of the National Privacy Commission has proven invaluable. Nathalia also has experience in immigration law and naturalization, commercial transactions, and settlement of estates.
Nathalia obtained her Juris Doctor degree from the De La Salle University Tañada-Diokno School of Law in 2019 and was admitted to the Philippine Bar in 2022. She completed her bachelor’s degree in Psychology at De La Salle University.
Mariecar has experience in providing legal assistance in a wide range of family law and domestic relations cases, including annulment of marriage, legal separation, and declaration of nullity of marriage. She also provides services to clients on agrarian and immigration matters.
Prior to joining the Firm, Mariecar had her internship at A
Mariecar has experience in providing legal assistance in a wide range of family law and domestic relations cases, including annulment of marriage, legal separation, and declaration of nullity of marriage. She also provides services to clients on agrarian and immigration matters.
Prior to joining the Firm, Mariecar had her internship at Arceo and Tandoc Law Office in Quezon City. She also worked as a legal researcher at the Department of Agrarian - Reform Adjudication Board and a research associate at the Philippine Survey and Research Center, Inc.
She obtained her Juris Doctor degree from Arellano University School of Law in 2021. She completed her bachelor’s degree in Communication Research from the University of the Philippines in 2014.
Rowena manages the day-to-day operations of LMJA, and is in charge of its administrative and clerical staff. She is responsible for tax, regulatory and local business compliance, and manages LMJA’s client database.
Her dedication and experience to LMJA are unmatched. For the past thirteen years, Weng has provided administrative support to
Rowena manages the day-to-day operations of LMJA, and is in charge of its administrative and clerical staff. She is responsible for tax, regulatory and local business compliance, and manages LMJA’s client database.
Her dedication and experience to LMJA are unmatched. For the past thirteen years, Weng has provided administrative support to all of LMJA’s lawyers, including its Founding Partners.
Weng completed her Computer Secretarial degree at West Negros University, Bacolod City.
Denisse is LMJA’s legal intern, and is completing her Juris Doctor degree at San Beda College of Alabang – School of Law. She writes for the Beda Law Review as an Associate Editor, and has extensive proficiency in legal research and legal writing. Denisse also shares a passion for the environment, being a member of her school’s Environmen
Denisse is LMJA’s legal intern, and is completing her Juris Doctor degree at San Beda College of Alabang – School of Law. She writes for the Beda Law Review as an Associate Editor, and has extensive proficiency in legal research and legal writing. Denisse also shares a passion for the environment, being a member of her school’s Environmental Law Society.
Denisse obtained her bachelor’s degree in Development Communication at University of the Philippines – Los Baños in 2017.