The issue isn't whether she can do what she is doing because obviously she is doing it. The issue is whether anyone is going to try to stop her and hold her accountable.
The attorney handling the estate only knows what his client, the Personal Representative/Executor, tells him. Obviously your conversation with the attorney did not have much impact. As for the Judge who is presiding over the probate proceeding, he only knows what he is told by the parties to the matter; which in this case is only your Aunt and her attorney. Unless you or someone else comes forward to challenge your Aunt she will get away with it.
What type of notice did you receive when you received the original papers from the attorney? Did you receive a "Notice of Administration"? If you did you need to immediately go back and read that notice. The generally used version of that form states:
"Any interested person on whom a copy of the notice of administration is served must file on or before the date that is 3 months after the date of service of a copy of the notice of administration on that person any objection that challenges the validity of the will (or any codicil), the qualifications of the personal representative[s], the venue, or the jurisdiction of the court, or those objections are forever barred."
If more than 3 months have elapsed since you were served this notice you may be barred from presenting your claims to the Judge. In other words, assuming that it isn't already too late, you need to do something immediately to preserve your claim.
TIME IS OF THE ESSENCE!