First Investment

[Chance Monteith]

This is my first ever question posted to BP!

Anyways, by the end of the year, I plan on purchasing a multifamily property to house hack. My brother and I are going to live in a unit, and rent the other(s) out.

My question is, in your personal opinion, what type of property should be a first purchase? Should I plan to buy a Duplex, Triplex, or Fourplex? I understand there are more factors that can go into making a clear-cut decision, but right now I just want to know your advice, assuming I'm able to afford the fourplex.

Another question: I have found a small complex composed of townhouse units, and a seller is selling 4 of these, 2 bed units together at $175000. 

Are these type of units considered to be the same as a fourplex,  or something else? I'm not sure how to describe the complex they're in, as they are townhouses in an apartment-style area.