My name is ***** ***** I am a NSW Solicitor. Thank you for your question, and will do my best to assist you with your question. Please understand this is not legal advise Please understand this is not legal advise but a guide to assist you.
You can contact the Supreme Court of QLD and see if there was a grant of probate made.
If they have granted probate then you can apply for a copy and it will have the will attached. If no will existed then they may have applied for Letters of Administration.
This is the first step.
Also you can check with Solicitors in the ROMA area and see if they held any will for your father.
There is no register if wills in Australia unfortunately
I hope this makes sense and is of assistance If there is nothing further
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