Tax Implications

My wife and I were recently added to title on my mother's second home as joint tenants (mother, son and daughter-in-law on title as joint tenants). My wife and I currently live at the property and are planning to remodel the older home. In order to obtain the loan, the bank/escrow company required my wife and I to be added to title because my mother did not meet the income requirements by herself (retired). My question is whether there are any tax implications for my mother or my wife and I (i.e., gift tax), since my wife and I were only added to title. Thanks in advance for your response.