Wallingford, Pennsylvania. Wallingford is an unincorporated community in Nether Providence Township, Delaware County in Pennsylvania, United States. Founded in 1687, it is named for Wallingford, England. In 2007, Wallingford was named by Money Magazine as the 9th best place to live in the United States; two other towns in the area made the top 15.
These are just a few of the factors that can lengthen the probate process. As a result, it is a reasonable estimation that an estate will remain open on average for about six months. Obviously, some could be open for as little as four months while others could last upwards of nine months or more. Each estate is different.
Prudence normally requires at least six months (most often longer) to wind up a trust's affairs. If an estate tax return is required, often the period of administration can last three years (or more).The estate tax return itself isn't due until 9 months following the death of the settlor of the trust, and that time can be extended without question for another six months.The IRS has three years to audit the return unless there is a request for prompt audit (reducing that time to 18 months).Report Abuse.f an estate tax return is required, often the period of administration can last three years (or more). The estate tax return itself isn't due until 9 months following the death of the settlor of the trust, and that time can be extended without question for another six months.