FHA loan for someone else

[Quinn Barnett]

On a BiggerPockets episode (or maybe a Rookie one) awhile back, I heard someone say they had given their sister money to buy a house with an FHA loan while she was in college. Then the sister house hacked it to pay for the mortgage.

My question is, how would that look for the loan? Is it dependent off my income since they do not have one while in school? How much can planning to rent by the room be taken in to consideration as income for the mortgage?

Thanks for your insight!