Wis. Stat. § 24.17

(1) When the purchaser of any public lands makes payment to the secretary of administration of the amount required to be paid on the sale and, in case of a private sale, produces the memorandum described in s. 24.16 , the secretary of administration shall give a receipt to the purchaser for the amount paid, and, unless the sale is wholly for cash, the board shall execute and deliver to the purchaser a duplicate certificate of sale, in which the board shall certify all of the following: (a) The description of the land sold. (b) The sum paid and the amount remaining due. (c) The times, place, and terms of payments. (d) That if the payments are made in accordance with the terms stated in the certificate of sale, the purchaser, or the purchaser's assigns or other legal representatives, shall be entitled to a patent for the land. (e) That in case of the nonpayment into the state treasury of any of the following, the certificate of sale from the time of the nonpayment shall be void and the board may take possession of and resell the land described in the certificate: 1. The purchase money as it becomes due. 2. The interest on the purchase money by the first day of February in each year or on or before the next following June 30th. 3. Any taxes lawfully assessed on the lands described in the certificate and then remaining unpaid by the purchaser or purchasers or by any person claiming under the purchaser or purchasers.

(2) When the sale of public lands under sub. (1) is wholly for cash, upon payment of the full purchase price to the secretary of administration, the secretary of administration shall immediately give to the purchaser a receipt stating the amount paid, giving a description of the lot or tract of land sold, and stating that the purchaser is entitled to receive a patent according to law.