I have the opportunity to bid on 4 Mc. D's restaurants. I haven't done alot of commercial bidding -- Was wondering if I could get some help --- Do you have a minimum charge? Do you charge more since commercial? One of them is only 3,000sf, another is only 7,000sf, 9100sf, and the fourth is around 42,500sf. I have a 48" Exmark walk behind and 48" Exmark ZTR.