How long should an estate stay open in Alberta?

This answer covers the law of Alberta.

There is no fixed length of time an estate must stay open in Alberta. The Estate Administration Act requires the estate to be distributed 'as soon as practicable' but sets no deadline for completing administration.

Two checkpoints often shape when an estate can be wrapped up. An application by a dependant for maintenance and support must be commenced within 6 months after the grant of probate or administration is issued, which affects when it is safe to distribute. The Court may allow a later application for any part of the estate not yet distributed. Before distributing, the representative should also apply to the CRA for a clearance certificate so they know whether tax is still owing.

Beyond that, how long it takes depends on the facts: the assets and debts to be identified, the notices to be served, and the accounting. Property passing by beneficiary designation or joint ownership may fall outside the estate. If a personal representative is not doing the job, beneficiaries can ask the Court to order compliance, remove the representative or revoke the grant. A lawyer can tell you what is reasonable for your estate.