Which document outlines the legal process to manage a deceased person's estate in real estate?

The correct choice is the document that outlines the legal process to manage a deceased person's estate, known as probate. Probate is a court-supervised procedure that involves validating the deceased's will, if one exists, and administering their estate according to state laws. This process ensures that the deceased's assets are properly distributed to their heirs or beneficiaries, debts are settled, and legal obligations are met.

While a will can express a person's wishes regarding the distribution of their assets after death, it is the probate process that actually executes those wishes in a legal context. A trust document provides an alternative means of estate management, allowing for assets to be managed in accordance with the conditions outlined in the trust, but it does not encompass the entire probate process. Lastly, a power of attorney is a legal document that allows one person to act on behalf of another in transactions, but it becomes void upon the person's death and cannot be used to manage an estate after that point. Thus, while other options relate to estate management in different ways, the probate process specifically refers to the legal framework needed to handle a deceased person's estate.