Marcia Weinstein died, and her property wasn't held in a trust. Thus, her estate will go through ______ to ensure her property is distributed to her beneficiaries in accordance with her will.

The correct process for distributing Marcia Weinstein's property following her death, given that it wasn't held in a trust, is probate. Probate is the legal procedure through which a deceased person's estate is administered. This process validates the deceased's will (if one exists), ensures that debts and taxes are paid, and facilitates the distribution of the remaining assets to the rightful beneficiaries as specified in the will.

In the absence of a trust, the probate court oversees this process to ensure that everything is handled legally and according to the deceased's wishes. This is especially important to prevent disputes among heirs and to manage any claims against the estate effectively.

The other options do not accurately represent the legal mechanism necessary for the distribution of a deceased person’s estate when a will is involved. Moderators do not handle estate distribution, attorneys may assist in the process, but they are not the mechanism itself, and estate planning refers to the preparation for future asset distribution rather than the process of actual distribution after death. Therefore, probate is the definitive answer in this scenario.