Diana Lyn Bello-Castillo




  • Specialization: Corporate, Commercial, Special Projects, Data Privacy, Intellectual Property, Tax, and Labor
  • Law School: University of the Philippines (UP) College of Law
  • University: Ateneo de Manila University

Atty. Diana Lyn Bello-Castillo is a commercial lawyer who has been a member of the Integrated Bar of the Philippines since 2012 and a member of the ASEAN Law Association since 2013. Prior to joining Carpo Law & Associates, Ms. Bello-Castillo was an associate in Angara Abello Concepcion Regala & Cruz Law Offices (ACCRALAW), one of the most prestigious law firms in the Philippines, as a member of its Corporate and Special Projects Department.

At ACCRALAW, Ms. Bello-Castillo engaged in commercial law practice focusing on special projects, energy, acquisitions, joint ventures, government procurement, ship registration and sale, incorporation of domestic companies, and licensing of foreign branches and representative offices. She also has extensive experience in handling corporate secretarial work and has drafted and prepared minutes and board resolutions for the Firm’s various Filipino and foreign-owned client corporations.

Her work at ACCRALAW allowed her to review contracts, prepare legal opinions and memorandums on a vast array of legal matters, including among other things, Philippine insurance law, renewable energy, insolvency, banking, and maritime law.

Aside from being associated with the aforementioned organizations and associations, Ms. Bello-Castillo is an active member of the Inter-Pacific Bar Association, the Intellectual Property Association of the Philippines, the UP Women Lawyers Circle, a Chartered Trust and Estate Planner for the American Institute of Financial Management, and one of the trained arbitrators for the Philippine Dispute Resolution Center Inc.

Ms. Bello-Castillo completed her undergraduate degree in Management (with a minor in English Literature) from Ateneo de Manila University – Loyola Schools. During her senior year in law school, she was an intern for two government offices: the Office of the Solicitor General and the UP Office of Legal Aid. In 2009, she worked as a research assistant of Supreme Court Associate Justice Marvic MVF Leonen, then Dean of the UP College of Law.

She thereafter obtained her Juris Doctor degree from the University of the Philippines (UP) College of Law where she was the recipient of the Maria Clara Lopez Campos Prize for Best Paper in Corporation Law, an award granted for excellence in legal research writing. She was also an awardee of the Dean’s Medal for Leadership for her services as Presiding Officer of the UP Law Paralegal Volunteers Organization and as Commissioner of the 2009 UP Law Bar Operations Commission.