I need to purchase a small mower to do 3 lawns, I got stuck mowing the mother-in-laws, and her neighbor, plus my own. I think I can mow each in about 30 min with a 22" push mower. I am looking to spend 500-700 dollars. What is out there? Should I look at a used commercial mower, I know that they will cost a lot more, but it would save me time. What do I do??? Yes I am mowing my mother-in-laws for free, It will keep peace in the family, but her neighbors job pays good.