These permanent visas can be obtained by the parents of an Australian Permanent Resident, Citizen and Eligible New Zealand Citizen who is settled in Australia. Contributory visa category is believed to be the most expensive visa in all categories in Australia. The requirements to be eligible sponsor child is bit complex.
Child of an eligible Australian parent can obtain this type of visa to stay indefinitely in Australia.
If an Australian citizen or PR has a permanent and/or long-term medical condition requiring assistance. They may sponsor a visa to their relative if no one else is able to assist you in Australia.
Remaining Relative Visa (Subclass 115) The Remaining Relative 115 visa is a permanent resident visa specifically designed for those whose all near relatives have settled in Australia and they are the only person left in their home country.