I hope this message finds you well, present circumstances excluded. I am a licensed attorney with over a decade of litigation experience. It is a pleasure to assist you today.
The answer is that you can re-open a previously closed case when new information or evidence becomes present that was not available at the time of the hearing or trial.
What state are you located in or was the estate closed within? I will attempt to find the case law in that jurisdiction for you.
That case law will certainly mirror that you will see below which comes from Texas:
A party seeking a new trial on the ground of newly discovered evidence must show: (1) new evidence has been
discovered since trial; (2) the failure to discover the evidence prior to trial was not because of lack of due
diligence; (3) the evidence is not cumulative; and (4) the evidence is so material that it would probably produce
a different verdict. Jackson v. Van Winkle, 660 S.W.2d 807, 809 (Tex. 1983), overruled on other grounds by
Moritz v. Preiss, 121 S.W.3d 715 (Tex. 2003).
A party who seeks a new trial on the ground of newly discovered evidence must demonstrate to the trial court
that (1) the evidence has come to the party's knowledge since the trial, (2) the evidence was not discovered
earlier because of a lack of due diligence, (3) the evidence is not cumulative, and (4) the evidence is so
material that it would probably produce a different result if a new trial were granted. Jackson v. Van Winkle, 660
S.W.2d 807, 809 (Tex. 1983), overruled on other grounds by Moritz v. Preiss, 121 S.W.3d 715, 720-21 (Tex.
I look forward to hearing back from you with the state that you are currently dealing with on this matter.