Once we get comfortable with that, we’d like to expand into duplexes, triplexes, and larger multi-family properties. 

I'm sure the case by case answer to that question will be "it depends" but it seems like a good opportunity for someone with a larger investment capacity to find a partner that could bring something to the table other than initial capital.  

So instead of buying another SFH or two, I bought two duplexes for my 2nd purchase from a long time friend of mine who is liquidating to get into real estate hedge funds with his in-laws.

Now, on a land deal, the seller is much much more likely to give you a larger window of time to line up a buyer so you can do your assignment or simultaneous closing.

However, my feeling is this - banks may be much more willing to move this type of property (oil and septic) for a larger discount with no contingency, cash offer.

@Brian Gibbons When you look at the numbers the Millennials are larger than the boomers.

I have also placed them in the corner of a larger kitchen or found space for them in a bathroom. 

However, when you start getting into larger commercial properties I think you want to have an S-corp formed (but I could be wrong!). 

Right time, right place type of thing, although I would prefer owning the entire duplex.Our longer term goals are to grow our passive income stream via buy and hold of more SFH and larger apartment complexes.  

A foreclosure is the forced sale of an asset in order to liquidated the security.