I am curious about the general concept/business of house flipping in other countries besides the US and Canada? I have the thought of travelling around world, living in a place for a while...living as a local more so ...

@Julie McCoyFrom an email my wife received, she works in HR for MarriottToday marks the exciting launch of Homes & Villas by Marriott International, the company’s global expansion into home rentals.

My business plan includes about $9,500 of interior reno, which means that I am replacing everything, cabinets, fixtures, appliances.

To get favorable treatment, looks like you need to add internal access between the units.

For the benefit of this thread, found the following:Not a definitive source but a good write-up...https://www.irafinancialgroup.com/learn-more/rules-solo-401k/am-i-subject-to-ubti-tax-on-unrelated-debt-financed-income-in-a-solo-401k-plan/Actual Internal Revenue Code Section 514(c)(9)...https://irc.bloombergtax.com/public/uscode/doc/irc/514Summary: too much legalize here for me but it seems to confirm that with limited exceptions (sub section B), the solo401k as a qualified organization is exempt.

We would then ask for their ITIN as a replacement in order to comply with applicable rules and regulations of the Bank Secrecy Act and USA PATRIOT Act.https://www.irs.gov/individuals/international-taxpayers/taxpayer-identification-numbers-tin#itin

As to the source of the requirement, it comes from the internal revenue code, I'm not sure about where the IRS mentions it on their website or even if they do--here is a link: https://www.law.cornell.edu/uscode/text/26/1400Z-2. 

I think Internal Rate of Return (IRR) is a better metric to consider when assessing total returns over time.I am not a proponent of "holding just barely enough equity."

Back when I was an intern, we had these lunch and learn "seminars" where people would come in and talk about various things. 

Renovation of interior of units, add bbq pits outside with picnic tables.