You probably already know this but it might be worth the time to set up an account with your local building materials supplier (Not lowes or HD) those folks always have their ear to the ground and can often recommenced better options. 

Hey @Storm SilvaIs the DD supplier willing to take on any contractual liability for their work?  

You need receipts if you are writing the checks to the suppliers, but not if you are “reimbursing” the contractor, you’ll 1099 him if required (dependent on his W-9).

Google Dallas Kidd and Under Pressure or PM me and I can give you his website.We have also heard good things about @Michael Belman with M&M Property Pros - he's here on BP somewhere.We have other construction suppliers that have installers. 

If by utility company you mean the local electricity supplier, can’t imagine any business with less chance of closing.

I've heard anecdotal evidence that other support businesses and B2B suppliers are looking to establish locations in southeast Wisconsin.

I'm going to be a bit of a contrarian to the above posters, but let me first qualify my post by stating that your market will determine what you should do.We frequently install en-suite laundry in our units - in fact, we have removed common coin-op laundry in most buildings of 6-units or less in favour of en-suite laundry - for the following reasons:electricity and, in most cases, hot water costs are transferred to the tenant;where water is sub-metered, water costs are transferred to the tenant;high-efficency residential laundry machines are about half the capital costs of commercial coin-operated machines;we can command $30 - $50/month in additional rent with en-suite laundry;by installing our own machines, we know they are installed property, with catch/drain pans and {going forward} leak detect shutoffs; andwith en-suite laundry vandalism of laundry machines has been non-existant ... and if a machine is damaged, we know who is responsible.We have a good rapport with a couple of local appliance suppliers and get called whenever they have "dinged and scratched" units to unload ... a small, cosmetic dent in the side of a washer - which will never be seen when it is installed in a laundry closet - can be worth a 40 - 50% discount.  

Drew Denham Why not pay supplier for all materials to be rooftop delivered.

I assumed the vendors/suppliers would have their own insurance, is this normal? 

We are obviously at the very beginning stages of all of this and there are a lot of things that we will be checking into with the city, insurance companies, paintball gear suppliers, etc, but the simplified version I see is:Initial planning and setup is very hands on butCan be managed with young/cheap labor once set up10 acres owner financed, only about 4 acres needed for paintball, 1 for their building5 acres available for other creative highest and best use scenariosProfit from paintball isn't really the point as we are continuing our business and other endeavorsIf the paintball field can pay for itself, pay for the land, and give us a few acres to play with in the meantime, is there a negative side I'm missing here?