[2] Regalado is considered the most influential jurist and writer on remedial law, writing the most complete compendium in one volume as early as 1972.

A year later he entered San Beda College and finished magna cum laude in 1954 at San Beda College of Law, and received his Master of Laws degree from the University of Michigan in 1963 as a De Witt Scholar.

[1][5] He remains the record holder for the highest average in the Philippine Bar Examinations, with his 1954 mark of 96.7%, where he was awarded the Memorial of Recognition.

[6][7] Regalado was also a young guerilla in the sixth military district in Panay and was awarded with distinction for his part in WW II.

His jottings on the stages of theft are considered the principal source in current jurisprudence in criminal law.