Legal Question in Wills and Trusts in Illinois

If there is indeed a probate estate then that would be public record. Contact the clerk of the circuit court in the county where your aunt last lived to inquire into how to review the probate file and Will. That should give you a lot of information from which to proceed. If there is no probate, then you have to try to discover who the trustee of the trust is and contact them for information. If they refuse your demands then you'd have to decide whether it's worth going to court to get information.

If your aunt's house is subject to your aunt's revocable trust, it might be very difficult for you to get information from your cousin -- particularly if you are not represented by an attorney. If your aunt changed her estate plan so close to her death, you may ultimately need to file a Petition to contest those changes. You should discuss everything that's happened with an attorney so you can have some idea of whether such a Petition is necessary and how likely it is that you will win. Feel free to give me a call. I've handled similar matters in the past, and I won't charge for an introductory phone call about your case.