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SIELER VS. DIST. CT. (SIELER) (FAMILY)

26-17685 · 91402 · Nevada (SCOTN/COA) · April 17, 2026

Disposition:Petition denied.Other Family Law

Posture Thomas Sieler petitioned the Nevada Supreme Court for a writ of mandamus or prohibition challenging a temporary custody order entered by the Eighth Judicial District Court (Judge Bill Henderson) in a family law matter involving real party in interest Sonia Sieler.

Statutes cited

Key holdings

- A petitioner seeking extraordinary writ relief bears the burden to show such relief is warranted, and writ relief is unavailable where there is a plain, speedy, and adequate remedy at law. - The availability of an appeal from a final judgment generally precludes writ relief from a temporary custody order. - A petitioner's failure to supply the documents necessary to review the issues raised, including transcripts of the proceedings, is grounds to deny writ relief under NRAP 21(a)(4).

Practitioner summary

The court reiterated the familiar standards governing extraordinary writ relief under NRS 34.170 and NRS 34.330: the petitioner bears the burden to demonstrate that writ relief is warranted, and such relief is available only where there is no plain, speedy, and adequate remedy at law. See Pan v. Eighth Jud. Dist. Ct., 120 Nev. 222, 228, 88 P.3d 840, 844 (2004). Issuance of the writ is discretionary. See Smith v. Eighth Jud. Dist. Ct., 107 Nev. 674, 677, 679, 818 P.2d 849, 851, 853 (1991). Applying those principles to a challenge to a temporary custody order, the court concluded that an appeal from the final judgment constitutes an adequate legal remedy that generally precludes writ relief. See Walker v. Second Jud. Dist. Ct., 136 Nev. 678, 681, 476 P.3d 1194, 1197 (2020). The court additionally identified a record deficiency: petitioner failed to provide documentation necessary to review the issues raised, including transcripts, as required by NRAP 21(a)(4). On these grounds, the court declined to exercise its discretionary writ jurisdiction.

In plain language

Thomas Sieler asked the Nevada Supreme Court to step in and overturn a temporary child-custody order issued by a family court judge. He did this by filing what is called a writ petition - a request that a higher court issue an extraordinary order directing a lower court to do something or to stop doing something. Writs are not the normal way to challenge a trial court's decision; the normal way is to wait for a final judgment and then appeal. The Supreme Court declined to get involved. It explained that writ relief is an extraordinary remedy reserved for situations where the person asking has no other adequate way to get a fix through the regular court process. Here, the court said Mr. Sieler can raise his complaints later, after a final judgment, by way of a regular appeal. That alone generally rules out a writ. The court also noted a practical problem: Mr. Sieler did not give the justices the documents they would need to evaluate his arguments, including transcripts of what happened in the lower court. Without that record, the court could not meaningfully review what he was challenging. For these reasons, the Supreme Court denied the petition. The temporary custody order entered by the district court remains in place, and the family law case continues there.

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