Quezon City · Cavite
Legal counsel for civil, criminal, family, and real estate matters
Dagsaan Monterde Castillo Law Office: legal advice, court representation, and notary services across thirteen areas of law.
Initial consultations available · Inquiries are confidential
Practice Areas
Thirteen fields of practice
Counsel for individuals, businesses, and organizations across the Philippine legal system.
Legal Insights
Notes on Philippine law from the firm
The firm publishes general legal information on topics that affect individuals and businesses. These articles are informational and not a substitute for legal advice.
May 2025
FamilyLawMarital Infidelity as Psychological Violence
An overview of how RA 9262 treats marital infidelity that causes psychological suffering as a recognized form of violence against women and their children.
Read the articleMay 2025
RealEstateLawBuyers in Good Faith
What it means under Philippine law to acquire property as a buyer in good faith, and the circumstances in which that protection applies to a purchase.
Read the articleMarch 2025
SpecificPerformanceSpecific Performance
What specific performance is as a contractual remedy under Philippine law, when a party may seek it, and the role bad faith plays in the courts' analysis.
Read the article
The Legal Team
The people who will handle your matter
A partnership of six attorneys with credentials in litigation, corporate, family, and real estate practice — based in Quezon City and Imus, Cavite.

Founding Partner
Atty. Albert James M. Dagsaan
JD, New Era University · LGU legal consultant

Partner
Atty. Arvidsson L. Monterde
JD, New Era University · civil, family, election practice

Partner
Atty. Ryan A.D. Castillo
JD, New Era University · pursuing LLM in ADR, PUP

Associate
Atty. Aihra Nicole V. Diestro
De La Salle University · Ateneo de Manila School of Law

Of Counsel
Atty. Jernel Janz P. Trinidad
JD, New Era University · criminal, administrative practice

Of Counsel
Atty. Clemente Angel Caesar B. Sarte VI
JD, New Era University · election, civil, criminal practice
What to Expect
A clear path from first inquiry to engagement
Reaching out to a law firm can feel uncertain. Here is what the process looks like.
By you
Inquiry
You send an inquiry through the contact form, by phone, or by email, with a brief description of your matter. There is no cost to make an inquiry, and what you share is treated confidentially.
By the firm
Initial Consultation
The firm arranges the initial consultation, in person at the Quezon City office or remotely. This is a conversation to understand your situation, clarify the legal questions involved, and outline the options available to you.
Together
Engagement
If you decide to proceed, the scope of work, timeline, and fees are set out clearly before anything begins. An attorney-client relationship is established only through a formal written engagement.
Frequently Asked Questions
How do I schedule an initial consultation?
You can send an inquiry through the contact form on this site, call either office directly, or email the firm. The firm will respond to arrange a consultation at a time that works for you.
What should I prepare for a first consultation?
Bring any documents relevant to your matter (contracts, notices, titles, correspondence, or court papers) along with a brief timeline of events. If you are unsure what is relevant, the firm can guide you when scheduling.
Do you offer remote consultations?
Yes. Consultations can be held in person at the Quezon City office or remotely, depending on what is most convenient for you.
Which areas do you serve?
The firm is based in Quezon City with a satellite branch in Imus, Cavite, and assists clients across Metro Manila and the surrounding regions.
When does an attorney-client relationship begin?
Submitting an inquiry or attending a consultation does not by itself create an attorney-client relationship. That relationship is established only through a formal, written engagement.
Still have a question? Send an inquiry →
Get in Touch
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.

