Hal was born on April 23, 1941 and lived in Milwaukee and Menomonee Falls with his parents John and Doris Block and siblings, Louise and Rick. He graduated from Menomonee Falls High School in 1959 and continued his education at UW-Milwaukee and UW-Madison, receiving a degree in pharmacy in 1965. During that timeframe and after a five-year courtship of sorts, he married his wife Nancy (nee Makkos) and they went on to raise three children, Robin, Christopher and Daniel. Oddly enough, this relationship actually continued for 56 years. Hal had an itch to return to school and in 1972 he graduated from Marquette University with a law degree. For a number of years, he was able to work at both of these professions as he was owner and co-owner of three pharmacies, but later he concentrated on his law practice mainly in the area of immigration law.