question about making sure multi family investment is profitable

[Tyler Helton]

what are all the major components worth putting into the equation to figure out whether a multi-family investment property will be profitable? at the moment I would consider money from rent as my income, and I'm not sure what else. I don't want to apply property value, because I'd first like to build a platform that relies on incomes that aren't so volatile. I'd like to build a platform that I can move forward with when the value of my properties (that I don't have yet) are going down. the costs I know to consider are mortgage, property tax, upkeep, owners insurance, loan insurance (FHA—house hacking), and I think that's it.