Quezon City · Cavite
Counsel and representation across areas of law
Dagsaan Monterde Castillo Law Office provides legal advice, litigation, and notarial services to individuals, families, and businesses.
Initial consultations available · Inquiries are confidential
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Practice Areas
Fields of Practice
Counsel for individuals, businesses, and organizations across the Philippine legal system.
Legal Insights
Legal Insights and Articles
The firm publishes general legal information on topics that affect individuals and businesses. These articles are informational and not a substitute for legal advice.
October 2026
buying property PhilippinesBuying Property in the Philippines: 4 Non-Negotiable Checks Before Releasing Your Downpayment
Once your downpayment leaves your hands, getting it back from the wrong seller can take years of litigation. In the Philippines, most failed property purchases trace back to a handful of problems that a buyer could have caught on paper: a seller with no authority to sell, a fake or outdated title, a hidden lien, or unpaid taxes and boundary disputes.
Read the articleOctober 2026
Electronic notarizationElectronic Notarization in the Philippines: A Know-How Guide and FAQs
Starting October 19, 2026, you no longer have to line up at a law office to have a document notarized. A Supreme Court-commissioned Electronic Notary Public can notarize your PDF in person or over live video, from anywhere in the Philippines.
Read the articleSeptember 2026
annulmentWhen Accusing Your Husband of Incest Ends a Marriage
We often hear about "irreconcilable differences," but a 2025 Supreme Court ruling showed us just how deep those differences have to be to legally end a marriage in the Philippines. In the case of Tee Ten v. Tee Ten (GR No. 259322), the Court didn’t just look at a couple falling out of love. They looked at a marriage defined by extreme paranoia, abuse, and an accusation that crossed the line.
Read the article
The Legal Team
The people who will handle your matter
A partnership of Lawyers with credentials in litigation, corporate, business, family, and real estate practice.
Partner
Atty. Albert James M. Dagsaan
Criminal Law, Litigation, Labor Law, Civil Matters
Partner
Atty. Arvidsson L. Monterde
Civil Law, Family Law, Procurement Law
Partner
Atty. Ryan A.D. Castillo
Contracts, Dispute Resolution, Corporate, Estate Planning
Associate
Atty. Aihra Nicole V. Diestro
Litigation, Civil Law, Criminal Law
Of Counsel
Atty. Jernel Janz P. Trinidad
Criminal Law
Of Counsel
Atty. Clemente Angel Caesar B. Sarte VI
Administrative Law, Criminal Law
What to Expect
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Initial Consultation
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Engagement
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Tell the firm about your matter
Send an inquiry and the firm will reach out to discuss how it can help. There is no cost or obligation to make an inquiry.
Submitting this form does not create an attorney-client relationship. Inquiries are confidential; please do not share highly sensitive details until a formal engagement is in place. Content on this site is for general information only and addresses Philippine law.