Atty. Rainier R. Mamangun / LMJA Law Office


Unit 2305, Antel Global Corporate Center, 3 Julia Vargas Avenue, Ortigas Center, Pasig,Metro Manila


Areas of Practice

We are a full-service law firm that handles cases involving Family Law, Real Estate & Property Law, Corporation Law, Commercial Law, Civil  & Criminal Law, Labor Law, Immigration Law,  and the rendering of general legal advice.  We attend to cases and concerns all over the Philippines including in the cities and municipality of Metro Manila namely Pasig City, Caloocan, Las Piñas, Makati, Malabon, Mandaluyong, Manila, Marikina, Muntinlupa, Navotas, Parañaque, Pasay, Pateros, Quezon City, San Juan, Taguig and Valenzuela.  We also handle cases in the neighboring provinces of Laguna, Cavite, Batangas, Bulacan, and Pampanga. 


In 2022, our Firm was chosen by Advisory Excellence as the Winner of the Certificate of Excellence in the area of Real Estate & Property Law in the Philippines.  

In 2022,  our Firm was profiled on Global Law Experts  as its "Recommended Firm" in the area of Real Estate in the Philippines.

In 2021, we were bestowed the Lawyer of the Year Award in the field of Family Law  by Lawyer Monthly.  

In 2020,  we were the awarded the Certificate of Excellence by  Advisory Excellence  for our outstanding performance in the field of Family Law.  

In 2013,  we were the recipient of the Certificate of Selection in the area of Family Law by Legal’s Finest.


You are not just "another" client of the Firm.  Embedded in our culture is the genuine concern for you, the client. Thus, we tailor fit our recommendations and actions to respond to your specific needs. 

Given the pandemic and its impact on people's finances, we   understand the need for reasonable and flexible rates while maintaining the quality of service that we provide.  

Contact us by email for your concerns and our friendly personnel shall attend to you. 


Established in 2004


Civil litigation
Corporate and Business Law
Criminal litigation
Estate planning, Wills and Succession
Family Law
General Corporate Services
Labor and Employment
Naturalization and Immigration
Real Estate


We provide a full range of legal services  for any case, concern, or interest that you may have.  Our Law Firm has been in existence for 18 years having been established in 2004.  We have handled thousands of cases in various areas of the law which means we would not be "learning as we go" when we attend to your case.  

Our Team of lawyers, paralegals, interns, and support staff are well trained, skilled in their line of work, and are dedicated to their craft. Coming from various fields of expertise, we harness their  individual strengths and utilize them to the fullest in the pursuit of the client's cause.    

Legal Education:


Get legal advise in 3 easy steps:

1. Submit your legal question by clicking the button below

2. Within 3 business days, a lawyer specializing in your issue will contact you to schedule the consultation.

3. Attend the consultation and get legal advice

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