Open Any Time - Appointment Available Upon Request - Realty Executives Cooper Spransy - Karen Tetzlaff, in Madison, WI, is a leading real estate agency serving Madison, Verona, Mt. Horeb and surrounding areas since 1997. We specialize in residential real estate, buyer and seller representation, income property, vacant land, and condos. We are open any time, so contact Realty Executives Cooper Spransy - Karen Tetzlaff today! Follow us on Facebook!