My girlfriend and I are trying to buy a 4 family home in Rhode Island. We want to live in a unit and rent the other three units (House hacking). My girlfriend seems to not understand why we need to house hack opposed ...

I know the "50% rule" is bandied about as gospel here in the forums, but haven't seen any actual, hard data that says that operating expenses tend to be ~50% of gross rent income. I'd like to verify this number is, in...