Leona is a descendant of the Mulinjahli and Waka Waka of South East Queensland. She has had 25 years experience in National and Foreign policy, covering Indigenous, UN, Gender and Trade and Economic issues. As an Australian Diplomat, Leona served in Canada and Trinidad and Tobago and represented Australia at international conferences and forums.

Leona was a member of the Secretariat for the Aboriginal Reconciliation Council from 1992-1995.

Leona also has many years experience in the private sector both in Australia and England.