Final answer:
The availability of a will can lead to the break-up of an estate if the deceased person did not leave one. State intestacy laws will determine how the assets are passed in that case.
Step-by-step explanation:
The break-up of an estate can be caused by the availability of a will. If a deceased person dies without having a will and/or trust established, their assets will be passed based on state intestacy laws. Additionally, a will can be easily challenged in court, which can lead to the break-up of an estate.