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.

A debt service loan would be a good option if your DTI is high, you want to close in an LLC, you're self-employed or have low income on paper, or you don't have a stable 2-year work history.

Yes it is posible to get a DSCR loan as a foreign national with no credit score, employment or current real estate ownership.

Self-Employment Opportunities: Would it make sense to start a side business related to my rental properties (such as property management) to access more deductions?

Hubby self-employed. .stressed out, Thelma  

So I thought about directly approaching human resources of the largest employers directly in the area, hospital in particular. 

If you employ staff, workers’ compensation insurance is required.

So often rentals don't have taxable income; and once they do it's still not subject to the payroll taxes paid by W2 wages or on self employed income. 

Option 4: 20% down on 2 to 3 properties Also open to hear other ideas, I'm self employed so getting a lender can be a bit more difficult.

It will be in addition to the first depreciation.That has to go into the "Tax Planner's Guaranteed Employment Act".