A. J. Daley practiced law in Luverne, Minnesota, from his admission to the bar in April 1891 to his death in October 1918, at age sixty-one. His obituary in the Rock County Herald affirmed his prominence in the community:
"He was a man of extraordinary energy, a deep student of law and took a keen interest in public matters. Of a positive disposition, he was as untiring a worker for any project that met with his approval as he was against a project that did not meet his approval.
"He was at all times much interested in any movement that he believed was for the advancement of the interests of Laverne, and in recognition of this trait and ability was appointed chairman of the commission that drafted the present city charter when the municipality was changed from village government in 1900."
The heart of this biographical profile, however, is the unusual beginning of his life in the law---the passage of a special law on March 24, 1891, by the 27th Legislature that relaxed the qualifications for admission to the bar for him and for him only. Less than two weeks later, he was admitted to practice in the courts of Minnesota by order of District Court Judge Martin J. Severance.