File a petition with the probate court to request a formal testacy proceeding. Under Title 75 Section 3-401 of the Utah Legislative Code, you can either ask the court to set aside an informal probate that has already been closed or you can ask that a probate in process be stopped from closing until you explain your objections to a judge. You must state your reasons for objecting in the petition.
Serve notice to all interested parties that you have filed a petition to either block or reopen probate. Title 75 Section 3-403 of the Utah Legislative Code lists exactly who you must notify, but in general, it includes the decedent’s spouse and children, any more distant relative who would be in line to inherit under Utah’s laws if the decedent had died without a will, everyone named in the will and the executor of the estate. Utah also requires that you publish a notice in a newspaper for anyone with rights to the estate who you may not know about or anyone whose current address you don’t know.
Appear at the testacy hearing when the court assigns a time and place. You might have a great deal to lose if you cannot convince the judge that your objection is reasonable, so even if you have represented yourself up to this point, you should consider hiring an attorney to appear with you in court. For instance, some people put clauses in their wills that if any of their beneficiaries contest and lose, they receive nothing, not even a nominal bequest they might have received otherwise. But under Title 75 Section 2-515 of Utah’s Code, you cannot be punished if you win your contest or have a legitimate reason for objecting. For example, a penalty clause is unenforceable if you are objecting to the will because you have a more recent, valid one in your possession. It is only enforceable if you claim that the decedent was incompetent when he made his will and his estate can prove that he was not.