He held this position until January 4, 1921, when he resigned to accept the position of high school teacher at the National University. There is no record whatsoever that Mariano Marcos ever graduated with a law degree from the University of the Philippines.
From his position, he resigned on January 4, 1921, to take a job as a high school teacher at the National University.  There's no evidence that Mariano Marcos ever graduated with a law degree from the University of the Philippines.