Rule 26.4.Provisions governing disclosure and discovery in contested proceedings under Titles 75, 75A, or 75B of the Utah Code
Part V: Depositions and Discovery · Last amended November 1, 2025 · Last verified July 13, 2026
In one sentenceRule 26.4 replaces the standard party-designation and initial-disclosure rules with procedures built for contested probate, guardianship, and conservatorship cases.
(a)Scope. This rule applies to all contested actions arising under Titles 75, 75A, or 75B of the Utah Code.
(b)Definition. A probate dispute is a contested action arising under Titles 75, 75A, or 75B of the Utah Code.
(c)Designation of parties, objections, initial disclosures, and discovery.
(1)Designation of parties. For purposes of Rule 26, the plaintiff in probate proceedings is presumed to be the petitioner in the matter, and the defendant is presumed to be any party who has made an objection. Once a probate dispute arises, and based on the facts and circumstances of the case, the court may designate an interested person as plaintiff, defendant, or non-party for purposes of discovery. Only an interested person who has appeared on the record will be treated as a party for purposes of discovery.
(2)Objection to the petition.
(A)Any oral objection made at a hearing on the petition must then be put into writing and filed with the court within seven days, unless the written objection has been previously filed with the court. The court may for good cause, including in order to accommodate a person with a disability, waive the requirement of a writing and document the objection in the court record.
(B)A written objection must set forth the grounds for the objection and any supporting authority, must be filed with the court, and must be mailed to the parties named in the petition and any “interested persons,” as that term is defined in Utah Code section 75-1-201, unless the written objection has been previously filed with the court.
(C)If the petitioner and objecting party agree to an extension of time to file the written objection, notice of the agreed upon date must be filed with the court.
(D)The court may modify the timing for making an objection in accordance with Rule 6(b).
(E)In the event no written objection is timely filed, the court will act on the original petition upon the petitioner’s filing of a request to submit pursuant to Rule 7.
(3)Initial disclosures in guardianship and conservatorship matters.
(A)This paragraph supersedes Rule 26(a)(2). In addition to the disclosures required by Rule 26(a), and unless included in the petition, the following documents must be served by the party in possession or control of the documents within 14 days after a written objection has been filed:
(i)any document purporting to nominate a guardian or conservator, including a will, trust, power of attorney, or advance healthcare directive, copies of which must be served upon all interested persons; and
(ii)75B of the Utah Code
a description of less restrictive alternatives to guardianship or conservatorship that have been explored, their applicability, and the ways in which a guardianship or conservatorship of the respondent may be limited.
(B)The initial disclosure documents must be served on the parties named in the probate petition and the objection, and anyone who has requested notice under Title 75 of the Utah Code:
(C)If there is a dispute regarding the validity of an original document, the proponent of the original document must make it available for inspection by any other party within 14 days of the date of referral to mediation unless the parties agree to a different date.
(D)The court may for good cause modify the content and timing of the disclosures required in this rule or in Rule 26(a) in accordance with Rule 6(b).
(4)Initial disclosures in all other probate matters.
(A)In addition to the disclosures required by Rule 26(a), and unless included in the petition, the following documents must be served by the party in possession or control of the 48 documents within 14 days after a written objection has been filed: any other document purporting to nominate a personal representative or trustee after death, including wills, trusts, and any amendments to those documents, copies of which must be served upon all interested persons. This paragraph supersedes Rule 26(a)(2).
(B)The initial disclosure documents must be served on the parties named in the probate petition and the objection and anyone who has requested notice under Titles 75, 75A, or 75B of the Utah Code.
(C)If there is a dispute regarding the validity of an original document, the proponent of the original document must make it available for inspection by the contesting party within 14 days of the date of referral to mediation unless the parties agree to a different date.
(D)The court may for good cause modify the content and timing of the disclosures required in this rule or in Rule 26(a) in accordance with Rule 6(b).
(5)Discovery once a probate dispute arises. Except as provided in this rule or as otherwise ordered by the court, once a probate dispute arises, discovery will proceed pursuant to the Rules of Civil Procedure, including the other provisions of Rule 26.
(d)Pretrial disclosures under Rule 26(a)(5). The term “trial” in Rule 26(a)(5)(B) also refers to evidentiary hearings for purposes of this rule.
Amendment History
Added effective January 1, 2020; Amended effective November 1, 2025.
Plain-English Summary
Probate cases don't start out looking like ordinary lawsuits. A petition gets filed, and there may be no opposing party at all until someone objects. Rule 26.4 exists to graft the discovery rules onto that structure. It applies to every contested action arising under Titles 75, 75A, or 75B of the Utah Code — the statutes covering wills, trusts, guardianships, and conservatorships — and it calls a contested action of that kind a "probate dispute."
Because probate cases don't come with a built-in plaintiff and defendant, the rule assigns those roles by default: the petitioner is treated as the plaintiff, and anyone who has filed an objection is treated as the defendant. The court can depart from that default and designate a particular interested person as plaintiff, defendant, or non-party for discovery purposes, but only someone who has appeared on the record counts as a party for discovery at all.
The rule also sets a fast clock for objections. An oral objection made at a hearing must be reduced to writing and filed within seven days, unless it was already on file, though the court can waive that requirement for good cause — including to accommodate a disability. A written objection has to state its grounds and any supporting authority, and it must be filed with the court and mailed to everyone named in the petition and to any "interested persons" under Utah Code section 75-1-201. If no one files a timely written objection, the case doesn't stall — the petitioner can move it forward by filing a request to submit under Rule 7.
Once an objection is on file, initial disclosures come due on a 14-day clock, and the rule spells out different document lists depending on the type of case. In guardianship and conservatorship matters, the party holding the documents must produce anything nominating a guardian or conservator — wills, trusts, powers of attorney, advance healthcare directives — along with a description of the less-restrictive alternatives to guardianship or conservatorship that have been explored. In other probate matters, the equivalent disclosure covers documents nominating a personal representative or trustee, including wills and trust amendments. Either way, these disclosures replace what Rule 26(a)(2) would otherwise require, though the court can adjust their content or timing for good cause under Rule 6(b). If a dispute arises over whether an original document is authentic, the party holding it must make it available for inspection within 14 days of the referral to mediation. Once a probate dispute is underway, ordinary discovery under the Rules of Civil Procedure — including the rest of Rule 26 — takes over, and the rule clarifies that "trial" in Rule 26(a)(5)'s pretrial-disclosure requirement also covers evidentiary hearings.
Frequently Asked Questions
What counts as a "probate dispute" under Rule 26.4?
Any contested action arising under Titles 75, 75A, or 75B of the Utah Code — the statutes governing wills, trusts, guardianships, and conservatorships. The rule uses the term as shorthand for these cases once someone has filed an objection.
Who is the plaintiff and who is the defendant in a probate case?
By default, the petitioner is treated as the plaintiff and anyone who has objected is treated as the defendant. The court can designate a different arrangement based on the facts of the case, but only a person who has appeared on the record counts as a party for discovery.
How fast do I need to put an oral objection in writing?
Within seven days of the hearing where the oral objection was made, unless a written version was already on file. The court can waive the writing requirement for good cause, including to accommodate a disability.
What happens if nobody files a written objection to a probate petition?
The case isn't stuck waiting. The petitioner can file a request to submit under Rule 7 so the court can act on the original petition.
What documents must be disclosed in a contested guardianship or conservatorship case?
Within 14 days after a written objection is filed, the party holding the documents must produce anything nominating a guardian or conservator — such as a will, trust, power of attorney, or advance healthcare directive — plus a description of the less-restrictive alternatives that have been explored.
Does the pretrial disclosure deadline in Rule 26(a)(5) apply to evidentiary hearings?
Yes. Rule 26.4 clarifies that the word "trial" in that provision also covers evidentiary hearings held in a probate dispute.
Source & verification. Rule text, Advisory Committee Notes, and
amendment history are reproduced verbatim from the Utah Rules of Civil Procedure,
adopted by the Utah Supreme Court. Last verified July 13, 2026. ·
Official source
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