Your question states in one part that the petitioner passed away 7 years ago, then it says the petitioner passed away 9 years ago ... At any rate, that's a long time ago. Have you made a request for another person to take the placed of the deceased petitioner? It seems that, especially because the petitioner passed away so long ago, it will be difficult to get a good result in this case. I suggest that you consult with an experienced immigration attorney about this issue.
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I agree with my colleague that you may be able to get a substitute petitioner but since you waited so long it may be to late.
You do not state your age. It may be that you already have status depending on how old you were when your father became an LPR or USC.
It would be worth the fee for you to consult with an experienced immigration attorney about your possible immigration.
You NEED a consultation with an immigration attorney
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