Are there any boat houses for sale on the Mississippi river in minnesota or Wisconsin?

Occasionally some of the boathouses on the Upper MIssissipi River come up for sale, but seldom through a traditional realtor. The best way to learn of one for sale is to visit the area where you want to buy one and talk with the current owners. There are also owners' associations, and one of these groups might be a resource for finding a boathouse to purchase.