I have been mowing residential for around 3 months and I am trying to get into the commercial end of this. I have measured all of the grass. I understand the dollar a minute, But I have no idea how long this is going to take me. I will be mowing it with a walker 36"GHS. There is a total 52000 square feet with about 6 small trees every 1000 square feet. This is almost 5 acres and I have been told $90 an acre. But $450 sounds kind of low considering all of the edge and trimming time. Any help would be greatly appreciated.