I just did a quick search of MLS for you, and found no rent-to-own properties listed in Shorewood.
I also searched Whitefish Bay, Bayside, Brown Deer, Glendale. I did though find one in Milwaukee- at 2929 N Maryland MLS#968694 priced at $233,900. Seller will consider a rent-to-own or land contract.
Not sure if this could work for you.
Good luck on your search.