Duplex for sale by owner in Butler, MO 64730. This duplex has just been completly remodeled inside and out it is close to a hospital and school and the city park is just one st. over I have three for sale. Two are side by side and the other is across the st.One is 69000.00 the other two are 73000.00 . I get 415.00 a month rent for each unit. Call 660 492 2731 for more info.... See site for full property details.