For Taxation benefit in home loan there are following conditions
1. You have share in House
2. You are main or co borrower in Loan
3. repayment must be paid through you ( either by direct payment to loan provider or pay to person who paying ultimately to loan provider)
thus in above case if you are co-borrower in loan , 100% property transferred in your name and EMI also paid by you than you can claim 100% benefits avail on Home Loans i.e. Under Income from house property and under Section 80C