The term "house hacking', in my opinion, is derived from the internet culture of hackers; hackers hack websites in order to gain unfair advantages.

I also love analytics, the truth is always in the numbers, and I love the endless strategies and systems RE investors have derived to be successful.  

Here's an example of how the math usually works when I look at it...http://www.loopnet.com/Listing/3121-3205-Orange-Ce...Purchase price = $2,480,000NOI before debt service (derived from 7.6% cap rate) = $188,480If 80% of purchase is financed over 30 years at 5%, that is $127,807.68 in annual mortgage payments.This leaves $60,672.32 in profit every year, until Year 31 when the mortgage is paid off.This is a down payment of $496,000 that you wouldn't see back until over 8 years.

I guess you've never heard of derivatives.

And income derived from any other state is taxed in the state you live.. although rentals as we know has very little taxable income. 

@Eric SchwakeWhen an IRA uses leverage, the percentage of the income derived from the non-IRA (borrowed) money is taxed as Unrelated Debt-Financed Income, or UDFI

Every single person I've encountered burns out quicker and we can derive no income from it.

Financing is different as well as the way the value is derived in an appraisal. 

I am certain that you will be tempted to violate the rules in the future by providing some goods or services personally to the IRA or deriving personal benefit from the IRA because of the fact that you and your IRA own two adjoining lots.

-Jacob Not a big deal, but what comes up is that typically you cannot use rent derived from your departing primary residence to qualify.