I have been doing residential for about 5 yrs. I now have the chance to bid on a church. The property is about 4ac. with three large buildings totaling about 15,000 sq ft. a 10,000 sq ft playground that will require a lot of trimming. There are also about 60 small trees and fence post to trim around but not much to edge. There also may be about 10,000 sq ft to blow off. I was told that the last company took about 4 hr to just mow with 2 48" commercial mowers. Can someone please give me a idea on how or how much to charge for a job this size. I am in the Ocala, FL area.