Please correct me if I'm wrong.You can require them to have insurance, but you cannot require them to purchase from a specific policy provider.

I purchased and renovated a house with a separate legal mother/daughter apartment that I am preparing to Airbnb here in Central NJ. 

but they don't provide current rent, value, what they have capital wise, etc. 

Let's say you spent a month on the initial preparation: cleaning, painting, shopping for furnishings, assembling IKEA furniture and so on.

Does it still provide effective results?

What are some cities that might provide cash flow, but remain affordable?

When work needs to be done, we require the tenant to provide access.

If you are hiring a legal licensed contractor , he will provide you with a contract . 

Where to get the most recent and accurate data for things like:Unemployment dataPopulation growthJob diversity and top employers in the areaVacancy rates (eg huduser.org)Property taxes and jnsurance costsI saw bp pro and reventure and a bunch of other websites provide some of this data, but i wonder how accurate and recent it is.

Well it is doing loans for folks who bought sight unseen and trusted contractors/turnkey providers who sell the dream but in the end do the absolute min in rehab work (even though charge for a much better job) and/or sell a buyer on a class B type neighborhood that is  reality a class D neighborhood in an already low income town.