I had a similar mindset and started...in the sense I bought house hacks in areas whereI wanted to live and worried a little less about the dollars and sense and just made sure it worked for me!

I decided to look into an official duplex or triplex putting 150K down that has value add with renovations and potential unit add but it wont have as much equity because it will be an on market deal. 

The best way to do this is to renovate a unit or two to the specifications to bring it up to market.  

Are the comps from the Bigger Pockets per unit figures?

The two 4-bedroom units even have two full-size washer and dryers each! 

My partner and I have a couple units we manage as well in Washington DC.

I am considering building up on my fourplex. 2 additional units.

If there are people there will be a need for MTR-- getting your location, unit size and pricing to align is the magic sauce.

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

Once the tenant applies for the unit, you'll have to work with the tenant and Section 8 to get approval, which always includes an inspection of the unit.