Yes, as long as the mortgage is legally secured by the property.
TurboTax does not require a 1098 to enter mortgage interest-you can enter it as if you are reading it from a 1098 mortgage statement. However, you will need a year end statement from your lender to enter the interest
To enter mortgage interest:
· Type in mortgage interest in the search box, top right of your screen
· Hit the Enter key
· Click jump to mortgage interest in the search results
· Follow the prompts and online instructions