[MikeSid]

Transfer title upon her death. You will get a stepped up tax basis to a value at the date of death.
If the property appreciates between now and then, you will save capital gains tax on that increase in value when you ultimately liquidate it. Assuming appreciation of the property, your basis will be higher than if you take title now.

If there is a non-tax reason to sell, then by all means, do what you have to do. But if you are certain you are keeping the property and the only question is mom's name or your name, then by all means, keep it in mom's name.