The Register of Deeds office is one of the county offices formally organized by the Constitutional Convention of 1889, and in some counties existed as part of the Territorial Offices. The Register of Deeds has now been changed to County Recorder. County Recorder officers are elected to four-year terms which begin January 1. In a few counties the position is appointed, but election remains the predominant method for citizens to select a County Recorder. The Recorder acts as the custodian of land records in the County and is responsible for recording real estate documents. Those documents include deeds, patents, plats, mortgages, affidavits, assignments, oil and gas leases and various others.