Our Team

Jude is a Philippine attorney specializing in mergers and acquisitions, corporate law, and tax. Jude has assisted a number of global and ASEAN multinationals in multi-jurisdictional reorganizations and has advised many clients on complex mergers and acquisitions.

He holds a Master of Laws degree from Harvard University where he received the Ayala Scholarship Grant, the Lopez Scholarship Grant, and the Landon H. Gammon Fellowship for Academic Excellence. He also earned a Master of Business Administration degree (Finance and Supply Chain Management) from UNC-Chapel Hill’s Kenan-Flagler Business School where he was a UNC Kenan-Flagler Fellow. He is a graduate of, and a former professorial lecturer on tax law and constitutional law at the University of the Philippines College of Law.

A corporate and tax lawyer with more than two decades of experience in the Philippines and abroad, Jude held senior director or partner positions in several Big 4 firms in the Philippines (KPMG), Central Asia (Deloitte) and in Europe (E&Y) He was, until 2015, a regional tax director and deputy head of regional tax of DFDL, an international law firm focusing on high-growth Asian markets.

He also served in the Philippine government. From 2004 to 2005, he was Assistant Secretary for Legal Affairs of the Republic’s Trade and Industry Department and Finance Department.

He writes on investment law for Lexis Nexis and tax law for IBFD. He also contributes to the Linklaters global data privacy protection guide.

Jude has been consistently recognized by Asialaw Profiles as a Leading Lawyer on M&A and Corporate Law. He has also been named among the Top 100 Lawyers of the Philippines by Asia Business Law Journal in 2020, 2021, 2022 and 2023.

Karen obtained her Bachelor of Laws degree from the University of the Philippines. She was admitted to the Philippine bar in 2001. She has extensive experience in corporate commercial and tax law, having worked as an associate at top law firm Castillo Laman Tan Pantaleon & San Jose, and as a tax lawyer at Sycip Gorres Velayo & Co. (Ernst & Young in Manila), the largest professional services firm in the country.

Karen’s experience in tax law is wide-ranging, from tax planning and advisory to tax controversy and advocacy. Her competence in this sphere is strengthened by international experience in the tax and legal departments of Big 4 accounting firms abroad. She was a senior tax manager at Deloitte Kazakhstan, providing investment counseling, corporate tax advice and international structuring assistance to domestic and multinational clients in various industries, particularly in the energy and resources space.  She was also a tax executive at Ernst & Young Cambodia advising mostly inbound investors in a wide range of industries in respect of their corporate and transaction tax concerns, including mergers and acquisitions and cross-border structuring.

Karen is also adept at data privacy issues. She has advised on, and assisted clients with, data privacy compliance including data protection officer and data processing system registrations; establishing privacy management programs; drafting privacy policies, procedures and notices; drafting and updating vendor and data transfer agreements; and establishing and implementing breach management procedures. Karen has the Certified Information Privacy Manager (CIPM) credential, as certified by the International Association of Privacy Professionals (IAPP).

In respect of corporate and commercial matters, she has handled corporate registrations, mergers and acquisitions and corporate reorganizations for domestic and multinational clients. She has assisted clients in drafting, reviewing and negotiating various contracts and agreements and in the performance of due diligence reviews prior to acquisitions.

Tina obtained her Bachelor of Laws degree from the University of the Philippines graduating with a Dean’s Award for Academic Excellence.

She was admitted to the Philippine bar in 2001, placing 10th in the bar examinations.

She worked as a junior associate of De Borja Medialdea Bello Guevarra and Gerodias law firm and later on as a tax lawyer at Sycip Gorres Velayo & Co. (Ernst & Young in Manila), the largest professional services firm in the country.

Tina also gained substantial experience as a legal officer with the Prosecution and Enforcement Department, Market Regulatory Office of the Philippine Stock Exchange.

She brings more than a decade of valuable regulatory experience with the power industry, working for many years overseeing the compliance of trading participants as Deputy Enforcement and Compliance Officer of the Philippine Electricity Market Corporation, which operates and governs the Wholesale Electricity Spot Market.

Tina’s expertise in labor, corporate, and commercial law allows her to advise and assist domestic and foreign clients in various stages of their business operations and in their many transactions. She has handled company registration and compliance involving various agencies such as the Securities and Exchange Commission, Bureau of Internal Revenue, Philippine Economic Zone Authority, the Food and Drug Administration, the Board of Investments, and many local government units. She assists clients in drafting, reviewing, and negotiating various contracts and agreements, and in conducting due diligence reviews prior to acquisitions.

Christine obtained her Bachelor of Laws degree from the University of the Philippines where she was awarded the Dean’s Medal for Academic Excellence. She holds a Master of Corporate Law degree from the University of Cambridge graduating with First Class Honors. She was admitted to the Philippine Bar in 2007.

She possesses extensive experience in the Public Private Partnership (PPP) sector, having worked as the head of the Project Development Service Department of the Public-Private Partnership Center of the Philippines. She likewise worked as a Foreign Consulting Attorney for Kelvin Chia Yangon Ltd., where she was seconded as General Manager of the Legal Department of the Joint Operations/PPP between Myanmar Posts and Telecommunications and KDDI/Sumitomo Corporation. She also previously worked for the Department of Finance Privatization and Management Office as Deputy Privatization Officer For Legal, and as an Associate at Castillo Laman Tan Pantaleon & San Jose Law Offices, one of the largest law firms in the Philippines.

Charity received her Bachelor of Laws degree from the University of the Philippines in 2001 and graduated with a Dean’s Medal in Academic Excellence.  She holds a Master of Commercial Law degree from the University of Melbourne and was the recipient of the Frank Pinkerton Scholarship Award for Principles of Natural Resources Law in 2017.

She was admitted to the Philippine Bar in 2002.  Prior to joining OS Law, Charity was an associate in Poblador Bautista & Reyes Law Offices and Siguion Reyna, Montecillo & Ongsiako Law Offices, where she gained extensive litigation experience representing foreign and domestic clients in various commercial disputes, including corporate rehabilitation and insolvency, intra-corporate controversies, breach of contracts, and intellectual property rights violations.

Charity was also a former Corporate Legal Counsel for a group of mining companies and has advised and assisted clients in conducting legal due diligence reviews of mining projects, contract negotiations, license applications, and compliance with national and local mining and environmental laws and regulations.

Em holds a Master of Laws degree in International Economic and Business Law from Kyushu University. She also holds a Master of Laws degree in International Corporate and Business Law from Ateneo de Manila University Graduate School of Law. She earned her Bachelor of Laws degree from San Beda University-Manila.

She has experience in corporate housekeeping, litigation, legal compliance, risk management, real property transactions, immigration, contract drafting, labor and employment. Prior to joining OS Law, she handled civil, criminal, labor, commercial, and family disputes. She represented clients before various courts, administrative and quasi-judicial bodies. She also advised local and foreign clients in setting up corporate entities in the Philippines.

She attended the Summer Course in Private International Law at The Hague Academy of International Law in 2019.

Kath obtained her Juris Doctor degree from Arellano University-School of Law and graduated as cum laude. She is also a Certified Public Accountant (CPA), and graduated magna cum laude from Mindanao State University – General Santos City, with a Bachelor of Science in Accountancy degree.

Prior to joining the firm, she gained more than 8 years of extensive experience in one of the leading professional services firms in the Philippines, specializing in Philippine corporate and individual taxation, tax advisory and opinion, tax assessments, tax compliance review and due diligence, transfer pricing, and other corporate services.

She has written articles in the Let’s Talk Tax Column in Business World. She also has attended various taxation and corporate seminars and was involved as a speaker in certain public seminars.

Shaula obtained her Juris Doctor degree from San Beda College – Alabang School of Law. She graduated from De La Salle University – Manila in 2013 with a Bachelor of Arts degree in International Studies – Major in Japanese.

Angeli was admitted to the Philippine Bar in 2019. She obtained her Juris Doctor degree in 2018 from San Sebastian College Recoletos – Manila where she graduated as class valedictorian.

Angeli ranked Top 12 in the Certified Public Accountant (CPA) Licensure Examinations held in October 2011. She obtained her Bachelor of Science in Accountancy and Computer Based Accounting Systems degree from University of the East – Manila where she was a recipient of awards for academic excellence.

Angeli was an Associate Director at SyCip Gorres Velayo & Co. (SGV & Co.) where she gained experience and skills in tax advisory and opinion, tax assessment, and tax due diligence. She then joined Salvador Llanillo & Bernardo where she was exposed to tax litigation, tax advocacy, estate settlement, and corporate housekeeping.

Nelsien earned her Juris Doctor degree from Far Eastern University- Makati in 2021. She holds a Bachelor of Science degree in Business Administration Major in Export Management from De La Salle-College of St. Benilde, where she graduated as Cum Laude in 2013.

Prior to joining the firm, she had experience in consumer banking group’s loan department and in the financial operations team of a shipping company.