Question about living in one unit of your multifamily home

[Alejandro Villanueva]

We are looking at buying our first property.  We are looking at a duplex or triplex.  We have read a lot on this site about how to run numbers on a multifamily home, but not what to expect when you are living in one of the units.  My question is when we look at the cash flow / cap rate / cash on cash, what would be a good / typical target assuming that we were living in one of the units of the duplex / triplex?