Australia Immigrant Business Program and Skilled category. You must meet criteria prescribed to the appropriate visa subclass.
Permanent residents are required to spend at least two years in five in Australia, or demonstrate significant ties to Australia, in order to maintain their residence status.
The Australian visa application processing timeframes differ significantly by visa type. The Department of Immigration has a priority processing tier, under which visa applications which yield the greatest benefit to the country (skilled visas) will be assessed quicker than those with little benefit (family visas).