The women were employed for five years in a refugee service that helped foreign nationals escape persecution and seek asylum.
The Newstimesuk Australia may also reveal that the older sister took an AVO in January 2019 against a 28-year-old man.
AVO was later withdrawn and dismissed.
In another court case, the owner of their Canterbury unit filed a civil lawsuit against the 23-year-old on May 13 this year.
Landlords can issue a legal warning notice through the civil court for additional rent before taking the next step to remove tenants from the property.
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