If you are passing all expenses to the tenant, then great, but if not you may have to consider garbage or water.

this is emergency water shut-off. 

I'm grateful for my job that allows me to pay my bills.I'm grateful for all the basics, healthy food, clean water, and good health.I'm grateful for the beautiful view of pine and cedar trees I have everyday.

If there are pets in the unit, make sure they have food and water on a regular basis (Purina), and if they are abandoned contact these people: https://www.nokillnetwork.org/d/Massachusetts/(Or you could keep them for yourself if you want--they sure need a new home)Good Luck!

The property is brand new and will be under warranty for the next 3 years, so I do not foresee needing to replace a roof or water heater in that time.

You're forgetting water/sewer, lawn care, snow removal, and admin/professional costs in your expenses.Does owner pay for trash removal in your market?

If it's in a city, it's likely that there was a previous structure on a vacant lot so there may already be a water meter and sewer tap.

We came to a deal on price and , they get no electric , they have to use honda inverters that are real quiet and build noise barriers . they can use the hose to fill water tanks in the trailers , no guests .

Your investment will be quite a bit less as you are paying for real estate and infrastructure (sewage, water and power) which can be done as the business grows. 

I've called Birmingham's Housing Authority at least five times last week and I either didn't get an answer or they tell me they don't know...I think any landlord can rent section 8 but the property has to have certain requirements like running water, hard wired smoke alarms, flush toilets and a roof that isnt collapsing.