Sam joined the law firm that is now known as Macedone Christie Willis of Jannali and Miranda in 1971, and became a partner in that firm one year later. He retired from Macedone Christie Willis in June 2007 to start his own firm, Macedone Legal.

Sam holds a Bachelor of Laws degree from Sydney University and was admitted to practice as a solicitor in 1970.
Sam has a wide range of legal experience gained over 36 years of practical application, but predominantly in the field of litigation. He has had the conduct of matters during that period in the Local Courts, District Courts, the Supreme Courts, the Court of Criminal Appeal and in the High Court of Australia.