These are the types of properties I'm now targeting.I'd imagine the biggest challenge you'll run into is finding multi unit properties.

If you like impacting the nation by providing affordable housing you can really put people in houses here.

My target asset class is multifamily and I just had an LOI accepted on a six unit deal in South Jersey. 

Would you pay for half of a new HVAC unit that still works ? 

One of the units is currently rented, so it would probably be great for a house hack.

I used to train up there when I was in the AZ National Guard and my wife and I met there in 2015.

You have to be super cautious though when looking at opportunities since some may come with unexpected circumstances such as major repairs, fines for illegal units, etc.

I know that my current cash flow is a result of the unit being my primary residence first, and that not all units will cash flow like this, but can't help the feeling that I should be expanding my rental portfolio over the years.

House hacking a 2-4 unit property with FHA (3.5% down) or Conventional (5% down) can be a smart way to start, while DSCR loans or partnerships can help if you need alternative financing.

If you can beat the ROI you're getting on the SFR, then do it.Otherwise, why can't you buy a 2-4 unit with a 3% down FHA loan?