We finally got both laundry poles gone. A couple weekends ago my husband started on the second pole and after getting the cement 2 feet down from ground level. We decided to cut the pole off and leave the rest of the cement and pole. Because it would not affect anything, it would be 2ft underground.
Someone was nice and let us use their tool for this. The blade was damaged in the process but buying a replacement blade was cheaper then the tool.