 Vaisey was educated at Shrewsbury School and Hertford College, Oxford, where he took Firsts in Classical Moderations in 1898 and "Literae Humaniores" in 1900.He was called to the bar by Lincoln's Inn in 1901 and devilled for a time for Mark Romer.He acquired a large general practice at the Chancery bar, took silk in 1925, and was elected Bencher of Lincoln's Inn in 1929.