I have to bid on 26 properties for the city. They are vacant properties that are grown up. They are all differnt sizes. All trees under 8" must be rmoved and the lot left ready for regualr cutting. I have the dimensions and size of each lot. I need some advice on best methods to clean up the lots. Walking over them I see many glass bottles and other junk and trash. Next week I am buying a small Bobcat. I know it will take a little time to learn it. Should I try to clear the lots using it. I f not, what works best. I have done several residential clean ups, but nothing covered in trash, bottles, and peices of cement, ect.. The debri can not be burned and I can choose which properties I want to bid on or not.