I think I am thinking along the same lines as Diego. To develop those thresolds that Diego refers to, you probably need to consider conduction some regressions outside of Tableau (probably in some statistica software). For example, what are the characteristics of the properties that lead to a successful sale? Is it driven by the amount of development money you invest up-front? or is there some other factor? or a combination? I think you really need ot have an understanding of these drivers in order to develop the thresholds, and then you can develop reports in Tableau that let you know when a property has crossed these thresholds.