She probably got a $20 flier and went with it. I see tons of them every spring. I have seen $25 hand written on a flier for a lawn that looked to be about an acre give or take a little. These illegals are going out in crews of 3 or 4 with 2 to 4 54 to 60" mowers. 2 guys on 60" mowers and 1 guy trimming can do an acre in 15 minutes assuming the lawn is not growing out of control.