You can lodge a claim but you have a time limit of 9 months from the date if death.
I cannot tell you if you will be successful as there are many things that have to be asked and determined.
You will need to have a solicitor in QLD to assist you and get things started.
Here is a link that explains alot about the process and your rights.
But you and your brothers if they want to contest as well should do it together now.
I hope this makes sense and is of assistance. If there is nothing further Happy New Year and
Thank you for using my services.
If I have missed anything, or you have any further questions please let me know
If there is anything else in the future please do not hesitate to ask.
Please do not forget to leave positive feedback.