tax benefit

I recently resigned from work because of my full time status as a student. I own a house and my sister is moving in with me. She too owns a condo of which she will be renting out. My sister will be helping me a little bit with bills but I am the one paying for my mortgage using my financial aid loan and savings. Since I won't be working this year, I won't have an income and won't be able to deduct my mortgage interests which is usually in the $20, 000s. Will my sister be able to deduct my mortgage interest if I add her on the deed but not on the mortgage loan?

Thanks