This product is no income no doc and underwritten purely on the rent schedule of the property .

Duplex tenants are younger/lower income than sfh, so likely worse than my tenants.  

If your objective is to build passive income, right now RV Campgrounds is probably the best option, delivering 12-15% cash on cash with 2.5-3X equity multiples.

I will be opening a separate checking/savings account for the other side of the duplex to house rent income and property related expenses.

The good thing about Jacksonville, FL is that Florida does not have a state income tax.Georgia does have a state income tax.The one important thing to recognize about Georgia is that they don't recognize bonus depreciation.

I want to have my own license moving forward, and there's not much information on the web on how to do this. 

Thanks to the Cost Segregation Study, the property investors accelerated the depreciation that the first year depreciation was approximately $356,000.The use of the accelerated depreciation strategy helps real estate investors to reduce the tax liability immediately which therefore increases their bottom line due to the offsetting of income.

@Angelo CortezMost STRs report income and expenses on an IRS Schedule E (not Schedule C) unless your STR is offering "substantial services"-> for example, concierge services or a butler to guests. 

One way to do this is by carefully keeping track of all the income and expenses related to your business.

I've come across a bit of a conundrum: conflicting information on how to calculate Net Operating Income (NOI).Every article and book I read has a different take.