Lansley's documented formation is Australian. Her legal education took place at the Australian National University in Canberra and at the University of New South Wales in Sydney. She was later admitted to the bar in Victoria, where she practiced in Melbourne.
Lansley's documented legal education consists of two university degrees from Australian institutions: a Bachelor of Laws from the Australian National University and a B.Juris from the University of New South Wales.
The Australian National University was established by federal legislation on 1 August 1946 as a research institution in Canberra and was initially confined to graduate study. Undergraduate teaching began in 1960, when Canberra University College became part of the university. The ANU Law School has taught law since 1960 and offers the Bachelor of Laws alongside its postgraduate programs.
The University of New South Wales was founded on 1 July 1949 as the New South Wales University of Technology, reflecting postwar demand for engineering and technology graduates. It was renamed in 1958 as it broadened into general studies. Its law faculty came into being in 1971, and before then only the University of Sydney offered law degrees in New South Wales.
Lansley's documented professional life is based in legal practice in Melbourne, Victoria. She was admitted to the bar in Victoria in 1987, and her later professional role was as a partner of Westgarth Middletons.
Wesgarth Middletons was formed in 1988 through the merger of Westgarth Baldick, a Sydney firm, and Middletons Oswald Burt, a Melbourne firm. Westgarth was best known for building and construction work, while Middletons was known for transport work with a heavy emphasis on shipping. Melbourne was regarded as a center for banking, finance and mergers work when national law firms began to emerge in the 1970s and 1980s. In 1991 Westgarth Middletons merged with Corrs Australian Solicitors and Chambers McNab Tully and Wilson to form Corrs Chambers Westgarth.
