@nick i want to start with a  multi family building.

I am starting to look into properties to buy, and have a question for those who have already gone down this road: is it better to buy two small multi-family (say, duplexes) or one larger one (say, 4-6 units)?

I am very interested in utilizing the BRRRR strategy to acquire multi-family properties while continuing to flip properties in order to grow my capital.  

My plan would be to rent out all but one of the multi family units, whether it be du, tri, or 4-plex, and have the remaining one my "residence"

Especially someone looking for a multi family? 

The second part is to do a ton of research and see if the rents have also continued to increase over a long period of time...again it's probably safe to assume they will continue to increase.

They would have to redeem like any other interested party and would pay statutory interest which today is around 1%.  

hi my name keith and looking to invest in multi family in Pittsburgh pa

The compact nature of the city makes every cm valuable and potentially multi functional.

There will be closing costs, third-party inspections, loan assumption costs that'll be between $100K and $200K.