I am looking to start a residential lawn service.Going to buy a exmark 36" mower. The going rate in my town is $30-35.How many lawns(ball park)hould I be able to mow in 8 hours,5 days week?Have heard with my setup around 60-65 lawns. What is the profite margin in this business?If I charge $30 by the time I pay for insurance and other things what kind of money would go in my pocket? I can tell you about trucking but I always paid to have the lawn mowed. Thank you for your help.