Did the estate ever actually own the property or did it pass outside probate

Pull the deed and see if it ever got transferred into the trust while the owner was alive. A lot of these trusts get signed and never funded, so the property stayed in the decedent's name and probate does have jurisdiction. What does the vesting deed actually say, trustee of what trust, dated when?

This is a real issue and the answer matters before you go further.

A revocable trust, meaning a legal arrangement where the owner transferred the property into a trust during their lifetime while keeping control of it, typically moves the asset outside of probate the moment the owner dies. Ownership passes directly to the successor trustee, the person named to take over, and the probate court has no authority over it. The personal representative (PR) is appointed by the court to manage the estate, but if that property was properly titled in the trust and the trust was funded, meaning the deed was actually changed to show the trust as owner, the PR has no legal authority over that asset.

So yes, a PR can try to run a sale on something the estate does not control. It happens, usually because the attorney is working from assumptions rather than a confirmed title chain.

The thing to check is the deed itself. Pull the recorded deed in Maricopa County through the Assessor's office or a title search and look at who is listed as the owner of record. If it reads something like "John Smith, Trustee of the John Smith Revocable Trust," that is strong evidence the property is trust-held, and the PR's listing agreement may be unenforceable.

A title company or real estate attorney in Arizona can confirm whether the PR has authority to sell. I would not go further on this deal without that answer in writing, because if you close under the wrong authority, you may not get clean title.

One question back to you: have you already pulled the deed, or are you working from what the attorney told you?