Turning an FHA Loan into an investment property

[Justin Wroblewski]

I am a 24 year old new investor (also new to BiggerPockets) who is motivated to grow my portfolio. I currently own a duplex in New Jersey as of January 31, 2018, which I purchased with an FHA Loan. I currently have the top unit rented out and I occupy the bottom unit. My short term goal is to move back in with my parents so I can rent out both units. This leads me to my only obstacle; Am I within FHA guidelines if I choose to move out of my bottom unit? If not, what is the best way to legally convert this property in to an investment?