2.2 Agency Duties in Wisconsin

Key Takeaways

  • Wis. Stat. 452.133(1) lists the duties a firm owes to ALL parties: honest service, reasonable skill and care, written disclosure of material adverse facts, accurate market information on request, confidentiality, account for funds, and reasonable inspection.
  • A 'material adverse fact' (452.01(5g)) is a fact that would significantly affect a reasonable party's decision or the value/safety of the property and is not readily observable.
  • Client-only duties under 452.133(2) add loyalty, obedience to lawful instructions, and disclosure of all information material to the transaction.
  • Confidentiality survives the end of the agency relationship and protects motivation, financial position, and any info a reasonable person would want kept private.
  • A firm must disclose material adverse facts in writing in a timely manner UNLESS disclosure is prohibited by law (for example, federal fair-housing or HIV/AIDS-status limits).
Last updated: June 2026

Duties Owed to ALL Parties — Wis. Stat. 452.133(1)

Every firm owes the following to every party in a transaction, client or customer alike. Memorize these six — the exam tests which duties survive even when no agency agreement exists.

#Duty (452.133(1))Exam-critical detail
1Provide brokerage services honestly and fairlyNo misrepresentation, no fraud, applies equally to both sides
2Exercise reasonable skill and careNegligence standard; competent, diligent performance
3Disclose material adverse facts in writingTimely, to each party, unless disclosure is prohibited by law
4Keep confidential information confidentialSurvives the relationship; not waived just because someone is a customer
5Provide accurate market information on requestWithin a reasonable time when a party asks
6Account for property/funds; safeguard trust fundsEarnest money, deposits held in trust

The firm must also conduct a reasonably competent and diligent inspection of accessible areas to detect observable material adverse facts — Wisconsin does NOT impose a full structural inspection duty, only observation of what is reasonably detectable.

Material Adverse Fact — the Defined Term

Under Wis. Stat. 452.01(5g), a material adverse fact is an adverse fact that a party indicates is significant to their decision, OR that is generally recognized as significant to a reasonable party, AND that the firm has reason to know the other party does not have and cannot reasonably discover. "Adverse fact" includes a condition or defect that reduces value, significantly impairs health/safety, or shortens the property's normal life.

Likely material adverse factLikely NOT required to disclose
Known structural defect, recurring basement floodingProperty was site of a homicide/suicide (452.23 — not adverse)
Failing private septic (POWTS)Occupant had/has HIV or AIDS (452.23 prohibits)
Defective well or unsafe wiring the buyer can't seeMere proximity to a sex offender (use registry)

Trap: Wisconsin's 452.23 stigma statute says a death on the property, a prior occupant's HIV/AIDS status, or registered-offender proximity are NOT material adverse facts and need not be disclosed. Disclosing protected-class health info could itself violate law.

Confidentiality Lasts

The duty to keep confidences continues after the transaction or relationship ends. Confidential info includes a party's motivation, top price/bottom line, financial condition, and anything given in confidence. The firm may break confidentiality only when law requires disclosure (for example, a known material adverse fact must still be disclosed).

Timing and the Inspection Standard

The duty to disclose material adverse facts is ongoing: if the firm learns of a defect after listing but before closing, it must disclose it in a timely manner. The firm's inspection obligation is limited to a reasonably competent and diligent inspection of accessible areas — the firm need not move furniture, open walls, or hire an engineer, but must report what a careful licensee would observe (water stains, foundation cracks, mold, obvious roof damage).

Additional Duties Owed ONLY to Clients — Wis. Stat. 452.133(2)

A client (someone with a written agency agreement) is owed everything above PLUS the heightened fiduciary-style duties below. A customer receives the 452.133(1) baseline but none of these.

Client-only dutyWhat it requiresLimit
LoyaltyAct in the client's best interest, place client above firm's own interestLimited/suspended in multiple representation
ObedienceFollow the client's lawful instructionsCannot follow unlawful or discriminatory instructions
Full disclosureDisclose all information material to the transaction to the clientSubject to fair-housing limits
Negotiate as the client directsAdvance the client's negotiating position, advise on price/termsNot owed to a customer

Loyalty plus full disclosure are why a client gets price advice and strategy while a customer does not. On the exam, if a question gives a duty like "advise the buyer how much to offer," the firm may do this only for a client.

Client vs. Customer — Master Comparison

DutyClientCustomer
Honest and fair serviceYesYes
Reasonable skill and careYesYes
Written disclosure of material adverse factsYesYes
Confidentiality (baseline)YesYes
Accurate market info on requestYesYes
Account for / safeguard trust fundsYesYes
LoyaltyYesNo
Obedience to lawful instructionsYesNo
Full disclosure of all material infoYesNo
Negotiation advice / advocacyYesNo

Worked Scenario

A listing firm learns the home has a chronically failing POWTS (private septic system) the buyer cannot see. The seller (client) says "don't tell anyone." The firm must still disclose the failing septic in writing to the buyer — it is a material adverse fact, and obedience does NOT extend to unlawful instructions. By contrast, if the seller confides a willingness to accept far less than list price, that is confidential and the firm must NOT reveal it to the buyer. Disclose defects; protect negotiating position.

Trap: Candidates conflate the two. Material adverse FACTS about the property must be disclosed to everyone; confidential NEGOTIATING information must be protected. A single scenario often tests both at once.

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Wisconsin Agency Duties (452.133)
Test Your Knowledge

Which duty does a Wisconsin firm owe to ALL parties, including customers?

A
B
C
D
Test Your Knowledge

A seller-client tells the listing firm to conceal a chronically failing private septic system the buyer cannot detect. What must the firm do?

A
B
C
D
Test Your Knowledge

Under Wisconsin's stigma statute (Wis. Stat. 452.23), which of the following is NOT a material adverse fact a firm must disclose?

A
B
C
D