Moving out of a FHA financed mulit hime

[Hoa Nguyen]

Hi curious future investor here, 

I am looking into investing in a duplex or even a 3 or 4 unit complex using an FHA Loan. I understand that I have to live on the property to successfully secure the FHA loan. My question is how soon can I move out and rent my spot in that complex after purchasing the property? Sorry if this is a noob question, I'm just trying to learn as ambitious young 23yo