Arizona Court of Appeals | Ariz. Const. art. III | No. 1 CA-CV 91-0263
The Court of Appeals applied the four-factor separation-of-powers test to uphold an agency hearing officer’s power to decide landlord-tenant disputes – a power the court found valid because it was tied to a genuine regulatory mission and reviewable in court.
Last updated August 28, 2026. Case: Cactus Wren Partners v. Arizona Department of Building & Fire Safety, Arizona Court of Appeals, Division One, No. 1 CA-CV 91-0263; 177 Ariz. 559, 869 P.2d 1212 (App. 1993); superior court judgment affirmed.
Scope note: This page provides an educational summary of the Arizona Court of Appeals’ decision in Cactus Wren Partners v. Arizona Department of Building & Fire Safety, a precedential ruling that upheld a state agency’s authority to adjudicate private disputes as auxiliary to its legitimate regulatory power. It is included here because it applied the four-factor separation-of-powers test to the same administrative-hearing statute (A.R.S. section 41-2198) that Arizona courts later addressed in the homeowners-association context. This page is educational and is not legal advice.
The takeaway
A state administrative agency may constitutionally adjudicate disputes between private parties when that authority is auxiliary to and dependent upon the proper exercise of a legitimate regulatory power and the essential judicial power remains in the courts through review of agency decisions. The Arizona Department of Building and Fire Safety’s mobile-home-parks hearing officer did not violate the separation of powers of Article III or deny the right to a jury trial, and the superior court’s judgment was affirmed.
Case Participants
Petitioner Side
- Cactus Wren Partners (dba Desert Skies Mobile Home Park) (Plaintiff-Appellant)
Arizona general partnership
Mobile-home-park operator that challenged the hearing officer's authority and the order to refund administrative fees and service charges. - Michael A. Parham (Counsel)
Parham & Cox
Counsel for plaintiff-appellant Cactus Wren Partners.
Respondent Side
- Arizona Department of Building and Fire Safety (Defendant-Appellee)
State agency
State agency whose mobile-home-parks hearing officer adjudicated the tenants' petition; made a nominal party on judicial review. - Mobile-home-park tenants (Pat Amos, Lois F. Liebhart, and others) (Defendants-Appellees)
Desert Skies Mobile Home Park tenants
The park tenants who petitioned the Department alleging that the sewer, trash, and administrative charges violated the Mobile Home Parks Residential Landlord and Tenant Act. - Elizabeth J. Stewart (Counsel)
Arizona Attorney General's Office
Assistant Attorney General (office of Grant Woods) for the Department of Building and Fire Safety. - Walter J. Reynolds, Jr. (Counsel)
Solo practitioner, Mesa
Counsel for the defendant-appellee tenants.
Neutral Parties
- Judge Ehrlich (Presiding Judge)
Arizona Court of Appeals, Division One
Authored the opinion of the court. - Judge Garbarino (Judge)
Arizona Court of Appeals, Division One
Concurred. - Judge Jacobson (Judge)
Arizona Court of Appeals, Division One
Concurred.
What happened
Cactus Wren Partners operated the Desert Skies Mobile Home Park, leasing spaces to tenants and charging them for sewage and trash service plus a monthly administrative fee.
On October 13, 1989, the tenants filed a petition with the Arizona Department of Building and Fire Safety, alleging that the trash and sewage charges imposed before June 28, 1989, and the administrative fee violated the Mobile Home Parks Residential Landlord and Tenant Act.
The Department’s hearing officer denied Cactus Wren’s motion to dismiss and, after a hearing in January 1990, found that the pre-June 1989 sewage and trash charges and the administrative fee were improper and ordered refunds or rental credits; the Department’s director affirmed and denied rehearing.
Cactus Wren sought judicial review in the superior court, which held that the hearing officer’s adjudicative power did not violate the separation of powers of Article III and affirmed the Department’s order. Cactus Wren appealed.
The Court of Appeals applied the four-factor separation-of-powers test and held that the hearing officer’s authority was auxiliary to the Department’s legitimate regulatory power over mobile homes and was subject to a critical judicial check through the Administrative Review Act.
The court also held that the restitutive order did not deny Cactus Wren a jury trial under Article II, and it affirmed the superior court’s judgment.
Procedural timeline
Mobile-home-park tenants petition the Arizona Department of Building and Fire Safety, alleging Cactus Wren's sewer, trash, and administrative charges violated the Mobile Home Parks Residential Landlord and Tenant Act.
The Department's hearing officer conducts a two-day hearing (January 10-11, 1990) and later finds certain charges improper, ordering refunds or rental credits.
The Arizona Court of Appeals affirms, holding the hearing officer's adjudicative authority did not violate Article III separation of powers or deny a jury trial.
Complete source-document index
This index contains 0 PDFs, 1 other source file from the reviewed public source packet. Byte-identical copies are listed once. Files are ordered by the date and sequence in the public filename, and party filings or research materials are labeled separately from court rulings.
Cap Opinion
Type: Decision or judgment
The published Arizona Court of Appeals opinion in Cactus Wren Partners v. Arizona Department of Building & Fire Safety, hosted as a downloadable public-record source used to build this case-file page and to supply a substantive source document.
FAQ
What was Cactus Wren Partners v. Arizona Department of Building & Fire Safety about?
Cactus Wren Partners operated a mobile home park and charged tenants for sewer and trash service plus a monthly administrative fee. The tenants petitioned the Arizona Department of Building and Fire Safety, and its hearing officer found some of the charges violated the Mobile Home Parks Residential Landlord and Tenant Act and ordered refunds. On appeal, Cactus Wren argued that letting an executive-branch hearing officer decide the dispute violated the separation of powers and denied it a jury trial.
What did the court decide?
The Court of Appeals held that the hearing officer’s authority did not unconstitutionally infringe on the courts and did not deny a jury trial. Applying the four-factor separation-of-powers test, the court found the agency’s power to resolve landlord-tenant disputes was auxiliary to and dependent upon its legitimate regulatory power over mobile homes, and that judicial review under the Administrative Review Act preserved the courts’ essential role. It affirmed the superior court’s judgment.
How does this case connect to Arizona HOA disputes?
Cactus Wren interpreted the same administrative-hearing statute, A.R.S. section 41-2198, that Arizona later used for homeowner-versus-association disputes. Here the statute was upheld because the Department had genuine regulatory authority over mobile homes. When the Court of Appeals later confronted the same machinery applied to planned-community disputes in Gelb v. Department of Fire, Building & Life Safety, it reached the opposite result – because, in that setting, the agency had no regulatory authority over homeowners associations. Cactus Wren shows why the regulatory nexus mattered.
What is the four-factor separation-of-powers test?
The test, adopted in J.W. Hancock Enterprises v. Arizona State Registrar of Contractors and later by the Arizona Supreme Court, weighs four non-exclusive factors: the essential nature of the power exercised, the degree of control over the exercise of the power, the Legislature’s objective, and the practical result of blending the roles. An administrative agency may resolve disputes between private parties when that authority is auxiliary to and dependent upon the proper exercise of legitimate regulatory power.
Is Cactus Wren still good law, and is this legal advice?
Cactus Wren is a published, precedential Arizona Court of Appeals decision. This page is a neutral educational summary, not legal advice; the statutory framework governing manufactured-housing and homeowners-association disputes has changed over time, so confirm the current law and consult a qualified Arizona attorney about any specific situation.
Case Dossier
This dossier combines the case metadata, linked court sources, and the explanatory sections below. It distinguishes court rulings from party filings, allegations, and requested relief.
Case Summary
| Case ID / citation | 177 Ariz. 559, 869 P.2d 1212 (App. 1993) |
|---|---|
| Court / tribunal | Court of Appeals |
| Decision / key date | September 14, 1993 |
| Judge / panel | Ehrlich (Presiding Judge, author), Garbarino (Judge), Jacobson (Judge) |
| Parties | Cactus Wren Partners, dba Desert Skies Mobile Home Park (Plaintiff-Appellant) v. Arizona Department of Building and Fire Safety and the park tenants (Defendants-Appellees) |
| Governing law |
|
| Topics | Procedure |
| Outcome / holding | A state administrative agency may constitutionally adjudicate disputes between private parties when that authority is auxiliary to and dependent upon the proper exercise of a legitimate regulatory power and the essential judicial power remains in the courts through review of agency decisions. The Arizona Department of Building and Fire Safety's mobile-home-parks hearing officer did not violate the separation of powers of Article III or deny the right to a jury trial, and the superior court's judgment was affirmed. |
| Primary public source | View hosted source opinion/order |
Parties, Court, and Research Coverage
| Reviewed source package | 1 other source file |
|---|---|
| Step-by-step docket roadmap | 3 roadmap entries |
| Video overview | No video embed currently configured |
| Study / briefing material | 1 section |
| FAQ / homeowner questions | 5 questions |
| Featured download links | 1 download link |
Key Issues & Findings
Cactus Wren Partners operated the Desert Skies Mobile Home Park and charged tenants for sewer and trash service plus a monthly administrative fee. In 1989 the tenants petitioned the Arizona Department of Building and Fire Safety, alleging the charges violated the Mobile Home Parks Residential Landlord and Tenant Act. The Department's hearing officer found some charges improper and ordered refunds, the director affirmed, and the superior court upheld the decision. On appeal, Cactus Wren argued that letting an executive-branch hearing officer decide a private landlord-tenant dispute violated the separation of powers of Article III and denied it a jury trial under Article II. The Court of Appeals disagreed. Applying the four-factor test from J.W. Hancock, it held that the essential nature of the power was judicial but that judicial review under the Administrative Review Act supplied a critical check, that the Department had legitimate regulatory responsibilities over mobile homes, and that the hearing officer's limited, ancillary power to construe rental agreements did not threaten the core functions of the courts. Because the agency's adjudicative authority was auxiliary to and dependent upon a genuine regulatory power, it did not violate Article III, and the restitutive order did not deny a jury trial. The court affirmed.
The court began from the presumption that a statute is constitutional and that Article III does not require an absolute separation of powers; some blending is permissible. Consequently, an administrative agency may resolve disputes between private parties if that authority is auxiliary to and dependent upon the proper exercise of legitimate regulatory power. To decide the question, the court applied the four non-exclusive factors adopted in J.W. Hancock from State ex rel. Schneider v. Bennett.
Applying the factors: the essential nature of the hearing officer's power – resolving disputes between private parties – is judicial; but the function does not coercively influence the judiciary, because judicial review under the Administrative Review Act is a critical judicial check; the Legislature's objective was legitimate, because the Department has genuine regulatory responsibilities over manufactured and mobile housing and the hearing-officer function supplements that mission; and, as a practical matter, administering compliance with the Act is furthered by the hearing officer, whose limited ancillary power to construe rental agreements does not threaten the core functions of the courts.
The court also rejected Cactus Wren's Article II argument. Relying on California's McHugh decision, it held that because the agency's authority did not usurp judicial power and the order directing reimbursement was simply restitutive, the administrative adjudication did not violate the right to a jury trial. On the underlying charges, the court affirmed the order as to the administrative fee and, on the record provided, affirmed the superior court as to the service charges.
Cactus Wren is a clear illustration of the principle that decides many Arizona separation-of-powers questions: an executive agency may adjudicate a private dispute, but only when that power is tethered to a genuine regulatory mission and the courts keep the final say through judicial review. The decision upheld the mobile-home-parks hearing officer precisely because the Department regulated manufactured housing and the adjudication served that regulatory purpose.
The case matters to homeowners-association law because it interpreted the same administrative-hearing statute, A.R.S. section 41-2198, that Arizona later applied to homeowner-versus-association disputes. The contrast is the lesson: where the agency had a regulatory nexus (mobile homes), the adjudication survived; where a later court found no regulatory nexus to planned communities, in Gelb v. Department of Fire, Building & Life Safety, the same machinery failed. Reading Cactus Wren alongside Gelb shows how the regulatory-nexus requirement works in practice. This summary is educational and neutral; it is not legal advice.