You should have an attorney request a hearing on why extension is necessary.
The court will consider extensions for valid reasons and those reasons are usually stated in the petition request.
My experience is that Judges like to close cases as soon as possible.
The answer given does not imply that an attorney-client relationship has been established and your best course of action is to have legal representation in this matter.
Generally, an estate remains open as long as necessary and convenient to properly administer the assets in the estate.
Courts are pretty lenient and understanding when authorizing extensions to letters of authority, but the personal representative does have to give some reason. Personal reasons, such as health, may be allowed.
If the administration of the estate has been unduly prolonged without justification, the court is likely to be upset more with the personal representative than the beneficiary that alerts the court to this sorry state of affairs.
Best bet is to consult with local probate counsel who can give you sound advice on the reasonableness of the extensions.
A personal representative is under a fiduciary duty to the estate. Any requests for extensions must be documented, and are usually given is so documented and for cause. However, if you feel the Personal Representative has been dragging the matter out unnecessarily, and without cause, you can always file a motion with the court to compel the personal representative to account for his delays. I hope this helps. Best of luck.
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There is no legal maximum that an estate can stay open. The probate judge has very broad discretion whether or not to grant request for extensions. If you have not received your distribution, you can either petition to demand distribution or ask for a status conference. If distribution has already been made, there is not much you can do. As a general rule, probate courts allow almost unlimited extensions.