Wisconsin Proof of Will (Formal Administration) is a type of probate process that is used to prove the validity of a will in Wisconsin. The formal administration of a will is the most common type of probate and is used when a decedent has left a valid will and has assets located in the state of Wisconsin. The process involves the appointment of an executor to administer the will and assets in accordance with the law and the decedent’s wishes. This process also involves the court, which is responsible for ensuring the will is valid and that the executor is acting in the best interests of the estate. The most common types of Wisconsin Proof of Will (Formal Administration) include: Small Estate Affidavit; Probate of Will; and Decedent's Estate Proceedings.