Keep track of what items are purely for the rental unit and what items are for both units.If it's an item that is technically for improvement of the whole house (landscaping, common area improvements, exterior siding/painting) you can only write off a portion.

I think that's purely personal to each person. 

:P )I am considering this at the moment as well, however I have decided that I will take the courses purely for the education.

@Andrew Gomez do you intend to live in one of those rooms, or is this a pure investment?

So it was technically a cash out purchase but not a pure investor play. 

Someone you have talked to about doing this with for a while or is this a pure gatekeeper decision for you meaning you are doing it just to get started?

Great for pure passive income.

Is it pure cash flow or building long term equity, flips to buy lots of gold chains, etc...

@Clayton Silva they are pure investment property duplexes with I believe around 30 yrs left on the lease.

Though this board did have some pure nonsense-- STRs survive recessions.Few of our closest got burned on this, we didn't commit.