Refinancing a short-term rental

[Garrett Pettit]

I'm new to investing and trying to learn more. I am curious: are there any restrictions or penalties that comes with the future refinancing of a 3.5% conventional loan down payment primary residence triplex used as a house-hack and other units as a short-term rental? I understand it blurs a lot of lines, and I haven't been able to get straight answers yes, so I would appreciate gleaning insight from anyone here who might be able to help!