Hop on the phone and start asking questions

We will see how this plays out after the first front-page news security scandal hits the mortgage industry, following in the footsteps of the IRS, Experian, your health insurance carrier, etc...

Track all your rental income and expenses so your accountant can do your taxes.https://www.irs.gov/pub/irs-pdf/p535.pdfAs for depreciation, there is always an amount that can be written off each year,,,   I usually only depreciate items over 10k and then we do direct write off it it is best tax wise. 

Due to the IRS laws of obtaining land in OZ we have to actually purchase the land and can't do an exchange.

If you only charge like $100... well then the IRS, and any regular person would see that as financing not a lease option.

An IRA generally uses the SSN of the IRA account holder as its tax ID.There is no harm from an IRA/IRS perspective of using just your name and SSN for this purpose. 

See below https://www.irs.gov/pub/irs-drop/rr-18-29.pdf

I'll hop on and chime in.  

At what point does IRS draw the line and classifies this as a business?

If you buy a prop to fix up and sell without holding it as a rental long-term (there's no hard and fast rule about this but the consensus is 12-18 months should satisfy the IRS), then you're going to owe taxes on the gain.Of course, sometimes you buy something to hold, and something comes up that requires or incentivizes you to sell faster than one year.