Modern Arnis
Presas formed the International Modern Arnis Federation (IMAF) in 1970 as the principal organization for the promotion and administration of Modern Arnis in North America. The organization was responsible for maintaining records of promotions and other administrative tasks. After the founders death in 2001, these duties have since been past on to (MARPPIO)—operated by the Professors eldest son Remy P. Presas Jr with the aid of the founders other children, and the rest of the Presas Family.