It depends. If the home is collateral for the loan, the person responsible for paying the loan/mortgage and has their name deed for the home would be allowed to deduct the interest and taxes if it was their main home or second home.
If both qualify, a general rule of thumb is the person paying the expense gets to take the deduction.
Thanks - do you mean as long as I am paying the mortgage and my name is on the deed, I can claim deduction even though my name is not on 1098?
Yes. The IRS requires it to be a secured debt on a qualified home. Your son living there qualifies it to be considered a second home for you since it is personal use by your family.