It's the least riskiest way to own income property in my opinion. 

If you've already got 99% of what you need to know under current conditions, what good could some cameras add to that equation? 

Quote from @Taylor Davila: What is the average cost of converting a single family home into a duplex? 

But, then you get the joy of proving that the guest did that in a tampering way and not "accidentally".

Quote from @Angel Peng: Currently in contract to close on my first duplex but the Landlord insurance cost took me by surprise.

@Michael HayesBigger Pockets is a great place to find a real estate accountant. 

I ran into this recent TurboTax article  that led me to believe it was possible: Second, you may have a net operating loss (NOL) if the Section 1231 loss is large enough to reduce your other income below zero.

What made you interested in investing in this type of deal?

Sometimes if that is an approval verse a bank account showing $500K for example, the agent on the list side may need a little education on what you are looking to do, I always have the lender call the agent in this situation to get them on board to get the listing agent more on board. 

What is your goal?