On September 20, 2017, the Colorado Supreme Court heard oral arguments in UMB Bank v. Landmark Towers Association, 2016SC455. The case was brought by the homeowner’s association of a condominium development regarding a TABOR election that took place several years ago. The purpose of the election was to form a metropolitan district that could issue bonds to finance new development and infrastructure in the area. The legal questions before the court concern when the results of a TABOR election are considered final and therefore immune from challenge, as well as the validity of using option contracts as a legal method of qualifying electors for an election to establish a metropolitan district.