William G. Montgomery
Education and employment
Prior to Justice William G. Montgomery’s appointment to the Arizona Supreme Court in 2019, he served as the Maricopa County Attorney beginning with a special election in 2010. Before assuming elected office, Justice Montgomery served as a Deputy County Attorney, as well as practicing civil law with a local insurance defense firm and advocacy work on behalf of victims of crime. Justice Montgomery earned a B.S. degree and received a commission as a Second Lieutenant in the Army from the United States Military Academy at West Point in 1989. He received his law degree from Arizona State University in 2001.
Judicial record
186 opinions where William G. Montgomery sat on the panel, spanning 2020–2026.
By court
By disposition
Panel votes per year
How William G. Montgomery's panel-seat count has shifted year by year. Overlaid with John R. Lopez IV for comparison (drop the overlay).
- William G. Montgomery
- John R. Lopez IV
Most-frequent co-panelists
Judges who appeared on the same opinions. aligned = same bucket (both majority, both dissent); partial = concurred in result but wrote separately; split = the meaningful disagreement (majority vs dissent).
- Ann A. Scott Timmer 181 shared 170 aligned 3 partial 8 split compare
- John R. Lopez IV 178 shared 175 aligned 1 partial 2 split compare
- Clint Bolick 177 shared 166 aligned 11 split compare
- James P. Beene 172 shared 169 aligned 1 partial 2 split compare
- Robert M. Brutinel 116 shared 116 aligned compare
- Kathryn H. King 107 shared 105 aligned 1 partial 1 split compare
- Maria Elena Cruz 29 shared 27 aligned 1 partial 1 split compare
- Andrew W. Gould 27 shared 26 aligned 1 split compare
- John Pelander 23 shared 22 aligned 1 split compare
- Rebecca W. Berch 11 shared 11 aligned compare
Recent opinions
15 most recent opinions where William G. Montgomery sat on the panel.
| Docket | Court | Filed | Disposition | Case |
|---|---|---|---|---|
| CV-25-0143-PR | Ariz. | 2026-10-28 | Reversed in part and remanded | BURKETT v. DRYJA |
| CV-25-0309-PR | Ariz. | 2026-10-28 | Affirmed | Macdonald v. Macdonald |
| CR-26-0026-PR | Ariz. | 2026-10-26 | Vacated | ROBBINS v. STATE OF ARIZONA |
| CV-26-0106-CQ | Ariz. | 2026-10-09 | — | BLUNT v. TOWN OF GILBERT |
| CV-25-0317-PR | Ariz. | 2026-09-24 | Affirmed | Joseph Terborg v. Town of Payson |
| CV-25-0020-PR | Ariz. | 2026-09-18 | Reversed and remanded | Abraham v. Arizona Board of Regents |
| CV-25-0330-CQ | Ariz. | 2026-09-01 | — | Industrial Park Center v. Great Northern Insurance |
| CV-25-0173-PR | Ariz. | 2026-09-01 | Affirmed | In Re Term of Parental Rights as to M.P. |
| CV-25-0176-PR | Ariz. | 2026-08-24 | Reversed and remanded | Aller v. State |
| CV-25-0119-PR | Ariz. | 2026-08-21 | Vacated and remanded | AROJOJOYE v. ALLEN |
| CV-25-0157-PR | Ariz. | 2026-08-18 | Vacated in part and remanded | Williams v. ades/lamont |
| CR-25-0157-PR | Ariz. | 2026-08-12 | Affirmed | Mario Rodriguez-Ramirez v. State of Arizona |
| CV-25-0213-PR | Ariz. | 2026-07-30 | Affirmed | DOE v. THE CORPORATION |
| CV-25-0287-PR | Ariz. | 2026-07-30 | Affirmed | McMahan v. Grasshopper |
| CV-24-0252-PR | Ariz. | 2026-07-29 | Reversed and remanded | GALLERY v. K HOVNANIAN |