I’m an Australian, and I want to invest my 60k towards the end of this year after I feel more competent in my knowledge.But looking on Roofstock, Zillow, Redfin etc, I’m seeing what looks like nice places (physically) for roughly 100k.

I've seen a few low-end rentals with physical DVDs, but I've never had any interest in using them.

However, if by "owner financing" they mean something like something like a lease option (where you take control of the property but don't actually become the owner at first...you're just leasing it until you decide to exercise your option), that would allow your seller to *feel* like they've sold the property now, but not actually sell it until later, and do a 1031 exchange at that time you actually buy it.  

My physical therapist with a fancy downtown location had their certificate of occupancy held up for 4 months after construction finished, and I'm 100% certain it's because his boss wouldn't pay the right person.

When exercising the MLO, what are general terms offered?

As a former wealth banker and now as the broker/owner of a private realty firm, I don't want my clients to affix their physical signature to any document whenever possible. 

Last but not least please do a physical visit to the area to verify what you are being told.

Go physically look at those properties.  

As in physically doing this yourself.

There’s no need to shuffle physical pieces of paper.