a scheffelera. They like to go a little on the dry side and this one looks like it is good shape. Whatever your aunt was doing with it, find out and keep it up!.
If she did not have it in direct sunlight and there is direct sun coming in on it through that window it might not like it so much and show a little sunburn.
Just a consideration....
-ecs

Yes, this is definitely a Schefflera also called the Umbrella Tree by some.