[2] After the fall of Ferdinand Marcos, President Corazon Aquino appointed Maambong as a trial judge in Cebu and then as a member of the 1986 Constitutional Commission.

[2] In 2002, President Gloria Macapagal Arroyo appointed him as an associate justice of the Court of Appeals of the Philippines.

[1] Regalado Maambong died from multiple organ failure at his condominium in Quezon City on May 27, 2011, aged 72.

[1][2] Maambong was laid in state at St. Peter's Memorial Chapel, cremated at Quezon City Columbarium, and his remains returned to Cebu, his home province.

[3] Philippines Chief Justice Renato Corona called Maambong "a great man.