FHA exceptions- moving

[Connor Vanin]

I am starting to look at kicking off my investing career with a house hack. The plan would be to buy a multi-family home with an FHA loan. The only problem is that my job can be transferred elsewhere in the country with little notice. My question is, if I am transferred to a new job site, does my unit have to sit vacant until the FHA required length is up? I feel like I should be able to find the info on this, but I must not be looking in the right places.

Any help would be great.