Atty. Rainier Mamangun

Atty. Rainier Mamangun's Law Office is a full-service firm that provides a full range of legal services for any activity or venture, or any area of interest or concern in the Philippines. Guided by traditional values, but oriented towards present-day solutions, his law firm is composed of lawyers and advocates with diverse and extensive experience in all areas of Philippine law.

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 over 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 properly trained, skilled in their line of work, and are dedicated to their craft. Coming from various fields of expertise, we harness our people's  individual strengths and utilize them to the fullest in the pursuit of the client's cause.   

You are not just "another" client of the Firm.  Embedded in our culture is the genuine concern for the client's situation. Thus, we tailor fit our actions to respond to your specific needs. Given the pandemic and its impact on people's finances, we also understand the need for  reasonable and flexible rates while maintaining the quality of service that we provide.   

Atty. Rainier Mamangun's expertise in family law and domestic relations covers representation and advisory services in annulment, declaration of nullity of marriage, recognition of foreign divorce, child custody, spousal and child support, adoption, and domestic abuse cases, among others. For almost two decades, he has worked on over 200 family law-related cases. He also handles real property and business law cases.

Atty. Rainier Mamangun is adept at handling cases in and out of court. His training with the Philippine Department of Foreign Affairs enabled him to hone his diplomatic skills which now prove crucial in his dealings and negotiations with the court and the opposition. His skills at legal drafting and the defense of existing legislation were developed through years of service at the Office for Migrant Workers Affairs and in appearances at Congressional hearings and various inter-agency meetings that dealt with law and policy formulation relating to the welfare of Filipinos overseas.