As a lawyer, she joined the bar in 1922 and worked on several famous cases, notably representing
Warner Brothers against
Igor Stravinsky in a copyright case, and
Rita Hayworth during her divorce from
Prince Aly Khan. Upon the death of the
Duke of Windsor, she looked after the assets of
Wallis, Duchess of Windsor, and gradually became her single representative, until her death in 1986; Blum's presence and actions during these years are a subject of controversy. The biographer
Hugo Vickers recounted that the Duchess's affairs had been the responsibility of Sir Godfrey Morley of
Allen & Overy, but the "sinister" Blum had "sacked" him and taken control, the Duchess's "increasingly dismal health" meaning "Blum was able to do whatever she pleased"; much of her fortune was directed to the Louis Pasteur Institute in Paris, with which the Duchess had no known connection, she having had little interest in charity during her life. ==Personal life==