If you manage rental property in Wisconsin, especially in Madison or Milwaukee, you have probably heard landlords say: "The state won't let the city regulate us." That is partly true, but it is also where most confusion starts. Wisconsin has strong state preemption laws, enacted between 2011 and 2016, that limit cities' authority to regulate many core landlord-tenant matters such as screening criteria, security deposits, certain lease-related requirements, and certain notice requirements. But preemption is not total. Cities like Madison and Milwaukee still enforce rental registration, housing-code inspections, and repair obligations, and those local rules remain fully valid.

For a property manager, the risk is operating as if preemption means "no local rules," when in reality it means "no local rules in certain areas, but yes in others." This guide walks the actual current framework: what Wis. Stat. § 66.0104 preempts, what Madison and Milwaukee can still require, where the 2018 inspection-reform law fits in, and how a manager should run policies that are consistent with state law while remaining compliant with valid local ordinances.

The Preemption Framework: Wis. Stat. § 66.0104

Wisconsin's landlord preemption statute, § 66.0104, was enacted in stages between 2011 and 2016 (primarily through 2011 Wis. Act 108 and 2015 Wis. Act 176) to create a uniform, state-level baseline for landlord-tenant regulation. The legislature's stated purpose was to prevent a patchwork of local ordinances that would make it difficult for landlords to operate consistently across multiple municipalities.

The statute prohibits cities, villages, towns, and counties from adopting or enforcing ordinances that place limits or requirements on landlords in the following areas:

• Tenant screening criteria: Local rules cannot restrict a landlord's ability to consider monthly household income, occupation, rental history, credit information, public records, criminal background, or other screening criteria.

• Security deposits: Local ordinances cannot impose deposit caps, return timelines, or itemization rules that differ from state law.

• Certain lease-related requirements: Local ordinances cannot impose requirements that conflict with the specific landlord restrictions preempted by § 66.0104, including certain rules concerning screening, showings, security deposits, inspections, and tenant communications.

• Check-in/check-out forms: Local rules cannot require specific move-in or move-out inspection forms beyond what state law requires.

• Certain notice requirements: With narrow exceptions (for example, federal or state law, or requirements that apply to all residential property owners), cities cannot mandate additional notices to tenants.

The practical effect is that any Madison or Milwaukee ordinance that conflicts with these areas is void and unenforceable. For example, if Madison tried to cap security deposits at one month's rent or require a 30-day return, that rule would be preempted by state law. Wisconsin's state landlord–tenant framework, summarized by the Wisconsin State Law Library, sets the baseline rules for leases, security deposits, and habitability, while preemption statutes such as § 66.0104 limit how far cities can go beyond that baseline.

What Madison and Milwaukee Can Still Require

Preemption is broad, but it is not total. Cities retain authority in several important areas, and those are where Madison and Milwaukee continue to regulate rental housing.

1. Rental Registration and Local Requirements

Both Madison and Milwaukee require landlords to register rental properties or provide emergency-contact information. These programs are not preempted because they fall under the city's traditional police power to regulate land use and public health, not the landlord-tenant relationship itself.

• Madison: Rental dwelling units must have a current emergency contact registered with the city's Building Inspection Division, and the city enforces housing and property-maintenance requirements through its inspection and code-enforcement programs.

• Milwaukee: The city has residential rental inspection and certificate requirements, including a program that applies to covered rental properties.

A manager who assumes preemption eliminates registration requirements will quickly run into code-enforcement actions or fines. The registration is a condition of operating a rental, not a regulation of the lease.

2. Housing-Code Inspections and Repair Obligations

Cities can still enforce housing codes and require landlords to make repairs that affect health and safety. This is a core municipal function that preemption does not touch.

• Madison: The city's Rent Abatement Ordinance allows tenants to request a rent reduction when code violations affecting habitability are not repaired by a deadline. This is a code-enforcement tool, not a deposit or lease-term rule, so it survives preemption.

• Milwaukee: The city has residential rental inspection and certificate requirements, including a program that applies to covered rental properties.

Importantly, the 2018 inspection-reform law (2017 Wis. Act 241) added a state-level limit: the law limits how frequently municipalities may conduct program inspections. Generally, when no habitability violation is found, or a violation is corrected within the applicable period, the property may not be subject to another program inspection for at least five years, subject to statutory exceptions for complaints, unresolved violations, emergencies, and other circumstances. This was a landlord-backed reform to reduce inspection frequency, but it did not eliminate cities' authority to inspect altogether.

Because local housing codes and repair obligations remain enforceable even under preemption, managers need a clear maintenance workflow for requests, work orders, vendor assignment, and documentation. RIOO's guide to how to manage maintenance requests explains the end-to-end process property teams use to stay responsive and audit-ready.

3. Short-Term Rental (STR) Regulations

Preemption applies to long-term residential leases, not short-term rentals. Both Madison and Milwaukee regulate STRs separately, and those rules are unaffected by § 66.0104.

• Madison: Short-term rentals are subject to local permitting, licensing, zoning, reporting, and operating requirements.

• Milwaukee: The city requires STR operators to obtain a license, comply with zoning, and meet safety standards (for example, smoke detectors, fire extinguishers).

A manager who operates both long-term and short-term rentals must keep the two regulatory tracks separate: preemption protects the long-term lease, but the STR side remains fully subject to local licensing and zoning.

Security Deposits: State Law Preempts Local Rules

Security deposits are one of the clearest preemption areas. Wisconsin state law sets the following baseline:

• No statutory cap on the deposit amount (except for mobile and manufactured home lots, which are capped at the lesser of two months' rent or $750).

• 21-day return window: Wisconsin law generally requires the landlord to deliver or mail the security deposit, less lawful deductions, within 21 days after the applicable statutory trigger under Wis. Stat. § 704.28.

•  No local variation: Cities cannot impose different caps, return deadlines, or itemization rules. 

For a tenant-focused summary of Wisconsin security-deposit rules, including return timelines and deductions, see the Tenant Resource Center's security deposit guide, which reflects the state-law baseline that preempts conflicting local ordinances.

A Madison or Milwaukee ordinance that tried to require a 30-day return or a one-month cap would be unenforceable. The state rule controls.

Tenant Screening: Preemption Protects Landlord Discretion

Tenant screening is the other major preemption area. Under § 66.0104(2)(a), cities cannot restrict a landlord's ability to consider:

• Monthly household income

• Occupation

• Rental history

• Credit information

• Public records

• Criminal background

• Other screening criteria

This means local ordinances generally cannot restrict a landlord's use of publicly accessible court records, including arrest and conviction records, in the ways prohibited by § 66.0104.

Because Wisconsin law preempts local rules on screening criteria, managers should maintain consistent, documented screening policies across all units and municipalities. RIOO's tenant screening process guide walks how to set criteria, run checks, and document decisions in a way that supports both compliance and fair-housing defensibility.

The key for a manager is that state law establishes the main limits on local regulation, while federal fair-housing law still applies. You can still comply with federal fair-housing law (which prohibits discrimination based on race, disability, familial status, and other protected classes), but you cannot be bound by stricter local screening rules.

The 2018 Inspection-Reform Law: A State-Level Check on Cities

In 2018, Governor Scott Walker signed 2017 Wis. Act 241, which added a state-level limit on local rental inspections. The law limits how frequently municipalities may conduct program inspections. Generally, when no habitability violation is found, or a violation is corrected within the applicable period, the property may not be subject to another program inspection for at least five years, subject to statutory exceptions for complaints, unresolved violations, emergencies, and other circumstances.

This was a landlord-backed reform to reduce the burden of frequent, routine inspections, especially in cities like Milwaukee that had aggressive inspection programs. It did not eliminate inspections altogether, but it added a state-level check on how often cities can re-inspect compliant properties. 

What a Wisconsin Property Manager Should Actually Do

Putting the pieces together, the Wisconsin priorities are specific:

1. Assume state law preempts local rules on screening, deposits, certain lease-related requirements, and most notices. If a Madison or Milwaukee ordinance conflicts with § 66.0104, it is unenforceable.

2. Comply with valid local registration and inspection programs. Register rental properties or provide required emergency-contact information, and prepare for housing-code inspections. These requirements are generally not preempted.

3. Track inspection findings and correction deadlines. If an inspection finds no serious violations, or if serious violations are corrected on time, state law may limit routine reinspection for five years, subject to exceptions.

4. Keep screening and deposit policies consistent across municipalities. Because state law preempts many local variations, managers should not use conflicting screening criteria or deposit procedures from one city to another.

5. Separate long-term and short-term rental compliance. Wisconsin preemption rules do not eliminate local short-term-rental licensing, zoning, and safety requirements.

6. Document everything. Keep inspection reports, repair requests, screening decisions, lease notices, and deposit itemizations dated and organized by unit. If a local requirement is challenged, the record matters.

For portfolios operating across Madison, Milwaukee, and other Wisconsin municipalities, the practical challenge is keeping lease terms, screening decisions, inspection reports, repair records, and deposit documentation organized by property. Using a centralized lease management workflow helps managers keep the underlying records tied to each tenancy, especially when state preemption makes consistent portfolio-wide policies important but local inspection and housing-code obligations still vary by city.

Frequently Asked Questions

1. Does Wisconsin preemption mean cities cannot regulate rentals at all?

No. Preemption eliminates local rules on screening criteria, security deposits, certain lease-related requirements, and certain notices, but cities can still require rental registration, housing-code inspections, and repairs, and can regulate short-term rentals separately.

2. Can Madison or Milwaukee cap security deposits?

No. Wisconsin state law sets no cap (except for mobile and manufactured home lots), and § 66.0104 preempts any local deposit cap or return-timeline rule that differs from state law.

3. Can a city require landlords to accept tenants with certain criminal records?

No. § 66.0104 preempts local rules that restrict how landlords use criminal background checks in screening, including publicly accessible court records such as arrest and conviction records.

4. Do rental inspections still happen in Madison and Milwaukee?

Yes. Cities can still conduct housing-code and rental inspections, but Wisconsin law places limits on the frequency of certain program inspections and provides exceptions for complaints, unresolved violations, emergencies, and other circumstances.

5. What happens if a local ordinance conflicts with state law?

The local ordinance is void and unenforceable. State preemption statutes (§ 66.0104 and related laws) take precedence, and a landlord cannot be penalized for following state law.

6. Do short-term rentals fall under preemption?

No. Preemption applies to long-term residential leases. Short-term rentals remain subject to local licensing, zoning, and safety regulations.

Note: This article is for general informational purposes only and is not legal advice. It reflects Wisconsin's landlord preemption framework under Wis. Stat. § 66.0104, the 2018 inspection-reform law (2017 Wis. Act 241), and Madison and Milwaukee rental ordinances as of 2026. Statutes and local ordinances change. Confirm the current requirements with the Wisconsin State Law Library, the relevant municipality, and a qualified Wisconsin attorney before acting.