331 N.W.2d 606 Mac R. McDONALD and Patricia McDonald, Plaintiffs-Appellants, v. CENTURY 21 REAL ESTATE CORPORATION, and Century 21 Real Estate of the Mid West, Inc., Defendants-Respondents, CENTURY 21 BLACKMON REALTY, Richard Blackmon, Jane M. Franzen, Agrico Lease, Inc., and Douglas Larson, Defendants.[†] Court of Appeals of Wisconsin. No. 81-2450.Submitted on briefs February 9, 1983. […]