[2][3] His mother later married Teruji Okubo and bore three children: Policarpio, Bernardo, and writer and activist Cecilia Afable.
After graduating, Hamada practiced law in Baguio City and has served as counsel for various cases that have reached the Supreme Court.
As a young lawyer, he served as the defense counsel for Cayat, an Igorot and native of Baguio, who was charged for illegal possession of a bottle of gin.
[7] Hamada was also petitioner to another landmark political law case, Cordillera Broad Coalition v. COA (1990), which challenged the constitutionality of President Corazon Aquino's Executive Order No.
[11] In 1954, Hamada joined other legal practitioners in lobbying for the right of Baguio citizens to vote for their own local officials.
[13][14] His granddaughter, Maxine Tanya Hamada, is a democracy activist and civil servant who served as Assistant Secretary in the Department of Budget and Management from 2014 to 2016.
[20][21] It was directed by Charlson Ong and playwright Lito Casaje and won Best Adapted Screenplay in the 2019 FAMAS Awards.