Partial interest only is available at 1.20-1.25x DCR (max leverage), whereas full term IO is available at lower leverage points >=1.35x DCR in most markets.

@Grace Tapfuma I have no idea how things work in Australia but if I were you in the US…Don’t sell the business.Businesses usually sell for a much lower multiple of their products income than real estate does.To be honest, you’ve built out a lot of infrastructure to create a successful business and maybe reinvesting in it would create a much better return on investment.For which you could reinvest those future profits into real estate, once you’ve scaled your business into a money making machine that isn’t so dependent upon YOU to drive the bottom line.I had a friend (38 years old) just recently sell his medical device company for $30M dollars and now he’s using this chapter of his life to passively invest in real estate ventures.Meanwhile, I’ve been toiling out here for 19 years as a real estate investor and I’ve built a portfolio worth $18M and have a net worth of $5M at 41 years old.Sometimes the grass isn’t greener on the other side.Correct me if I’m missing something!

You typically want an LLC where the property is because it's a state specific device so you want it to apply to the asset you're trying to protect. 

In every building, that we bought that had common heat and hot water, we seperated those units on to their own devices. 

I would rather have I/O.  

We have a large piece of land undr contract that we'd like to develop for IOS.

(I really want to get started fixing the iOS app.) 

Quote from @Vince Scipione: Yes, they are a popular choice where I live and work, however with the ever fluctuating cost of oil heat, many people have swapped over their boilers/furnaces to what is called a "Propane Gun" essentially it is a device that is affixed to the front of the furnace/boiler that injects the propane and ignites it.

Is this the case for all mobile devices or am I missing something?

We were running out of money to continue carrying the property, so we took it.We refinanced all our existing debt into a new 30 yr loan for $2M, which was 10 years IO at 8.375% before going principal + interest in years 11-30.