Plan on having a lot less control on how the job progresses because of other contractors getting in the way or having to wait for someone else to do their part. At least 30 to 60 days for payment and a lot more paper work. Here commercial work is awarded on cheapest price without regard for quality. I have had other co's come from 80 miles and beat me by 20k on a 100k project. I still don't know how.