House hacking a duplex

[Jenn Chism]

Hello. I am new and looking into purchasing my first rental property, possibly a duplex to live in one side and rent the other. And possibly only live in it about a year then move on and rent both sides out at that point. When analyzing a deal like that, do you run the numbers for what it will be when both sides are rented since that is what it will be after the first year? Or do you use a rule such as the rental income needs to cover at least the mortgage, or.....?? Any advice on how best to analyze a house hacking duplex deal would be greatly appreciated! TIA!

Jenn