There is a lot more information available Newquay - getting a visa can be very complicated, depending on circumstances.
Health problems in old age could potentially wipe out any savings as I don't think you can start paying into Medicare when you are older.
I am surprised that mother managed to become an Australian citizen if she went fairly recently without a job.
The sister must be a bit younger than your friend if she has a toddler - she probably thinks that her sister is single, has no commitments and can drop everything to rush out and help.
Australia is a great place but you do have to be prepared to rely on your own resources to a large extent. However, I would be surprised if there is not some more help available.
Good luck, hope they can sort something out.
What has survived in your garden with minimal or no watering?
Wildfires in Turkey and Greece
If you were given £10k to spend on your bedroom , what would you buy?

