Beginning at age 30, Lawlor
studied law at
University of California, Hastings College of Law, 1885-1887, and in the offices of Rhodes & Barstow and Dennis Spencer in
San Francisco, California. He was re-elected to the bench in 1900, 1906 and 1912. As a Superior Court judge, Lawlor dismissed indictments in the San Francisco trolley bribery cases against officials of the United Railroads. In 1910, Lawlor ran unsuccessfully against Republican candidate
Henry A. Melvin for the California Supreme Court. In 1914, Lawlor was elected an associate justice of the California Supreme Court, replacing
Frank M. Angellotti who was elected chief justice. Lawlor served in that position from January 3, 1915, until his death on July 25, 1926. In 1922, Lawlor ran against
Curtis D. Wilbur for the position of chief justice, but lost. ==Personal life==