Looking specifically at the 3.5 FHA on a duplex or tri, after the BP preachers have spoken it’s word for so long to really amp up any type of rei.

I want to start buying and holding single family and multi family no bigger than a duplex in the next year or two.

This implies house hacking a duplex to quad.  

For example, I just bought a duplex for 140K.

My properties are mostly SF Houses & Townhouses or Townhouse-Style Duplexes, so no properties where one tenant's ceiling is another's floor.

With that being said I will be house hacking a duplex.

Because we got it for such a great deal I am trying to figure out if I should put a little bit of money into it and flip it for a rough profit of 20k-25k and use that money for a down payment on a duplex, triplex or fourplex.Would you guys hold it and rent it or flip it and use the profit for more units?

But I believe it's only the walls that are being 3D printed for 'only $4,000.00'. 

While this is my first post, I am an avid reader of all the content on this forum and am greatly appreciative of everything this community has to offer.A friend and I are interested in a duplex.

@Eric Calabrese I guess it depends what stage of your investing you are in, I was in the right around 20 units spread across a bunch of duplexes.