I am getting very close to understanding it.

If you put it on the city's radar you will need to bring it into compliance.I am not 100% sure I understand your overall question though...Are you wanting to put a rooftop deck on your roof and create a hatch in the enclosed porch to get to the roof top deck?

Understanding local regulations and zoning laws is crucial to avoid legal issues.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

A standard mortgage would work. 

My understanding is that interest income derived "in the ordinary course of a trade or business" is considered business income and is subject to SE tax.

I always use a mixture of sources between Furnished Finder, Zillow, DPGO, and other sites to understand the supply and demand of MTRs in the given market. 

However, ensure that you fully understand the rules and timelines associated with a 1031 exchange to make the most of this opportunity.Cash Flow Analysis: Your estimated cash flow of $13,000 per month with the Indiana duplexes is impressive.

Many OOS investors set themselves up for failure because they don't truly take the time to understand:1) The Class of the NEIGHBORHOOD they are buying in - which is relative to the overall area.2) The Class of the PROPERTY they are buying - which is relative to the overall area.3) The Class of the TENANT POOL the Neighborhood & Property will attract - which is relative to the overall area.4) The Class of the CONTRACTORS that will work on their Property, given the Neighborhood location - which is relative to the overall area.5) The Class of the PROPERTY MANAGEMENT COMPANIES (PMC) that will manage their Property, given the Neighborhood location and the Tenants it will attract - which is relative to the overall area.6) That a Class X NEIGHBORHOOD will have mostly Class X PROPERTIES, which will only attract Class X TENANTS, CONTRACTORS AND PMCs and deliver Class X RESULTS.7) That OOS property Class rankings are often different than the Class ranking of the local market they live.8) Class A is relatively easy to manage, can even be DIY remote managed from another state.