primary residence qualifications...?

[Austin Bull]

Hey all,

I'm planning on using a primary residence loan on my first SFH or small multi-family house-hack; most likely an FHA loan. BUT..I am wondering what constitutes a primary residence?

-Can I live there part time and short-term rent(Air bnb) the room/unit that I was just living in while I'm gone? How long do I technically have to be in the house throughout the year for it to be my "primary residence"?

I don't want to have mortgage fraud, but I want to know the limits of what I can and can't do.

Thanks!