I am based in New Zealand and own 4 properties here, but keen to explore investing in the US. 

Not if you already own the land.

@Sharad ReddyRecommend continental 48 states

I wouldn’t completely ignore the possibility of out of state operations, however I wouldn’t even know where to start.

I think he really believes his own BS.

For financing, there are programs like FHA loans for first-time buyers, and there may be local or state-level programs offering incentives for affordable housing investments.

I've owned a bunch of condos, so I speak from experience.

We own a rental property in Helena, AL that we purchased about two years ago. 

There is a ton of DD to do on a MF property, are you doing an environmental study, a reserve study, analyzing the T-12, market study to show there is room to increase rents (of course every seller states rents are underpriced)... 

Money has to come from somewhere so where will it come from.issue will be if they increase sales tax it will be regressive tax as those who rent and don't own and have low wages will still pay more for everything.