The fair housing AI leasing assistant: what it may tell a renter, and what goes to a person

In short: A fair housing AI leasing assistant answers facts about the unit the same way for every caller and says nothing about who lives nearby, because the Fair Housing Act already covers what it says. 42 U.S.C. 3604(c) bars any rental statement "that indicates any preference, limitation, or discrimination" on a protected ground, 24 CFR 100.75 applies that to oral statements, and 24 CFR 100.7 can make a business liable for its agent's discriminatory practice "regardless of whether" it knew, and for failing to act promptly on a third party's. HUD's April 2024 guidance on advertising through digital platforms was withdrawn effective September 17, 2025, by a notice published April 6, 2026; the companion screening guidance now sits on HUD's archive site, and neither mentions a chatbot. The rule we build to: facts about the unit for everyone, nothing about the neighbourhood's people, and accommodations and eligibility to a person.

Key takeaways

• Section 3604(c) reaches statements even by the small owners section 3603(b) otherwise exempts, and 3604(d) bars telling someone, on a protected ground, that an available unit is taken.
• HUD's withdrawals left the law where it was: 24 CFR 100.7, 100.75, 100.80 and 100.204 carry no amendment in the eCFR's record since January 2017, and the two year window to sue under 42 U.S.C. 3613 is untouched.
• In Massachusetts, c. 151B s. 4(10) protects tenants with housing subsidies, so "Do you take Section 8?" has one answer: yes.
• On one Toronto brokerage line, members of the public with a question and nobody in particular in mind were 347 of 1,190 answered calls, 29.2%, and 38.0% of them called after hours, more than any other group.

What the statute and the regulations say about words

Section 3604 of the Fair Housing Act governs talk as well as who gets the unit. Paragraph (c) covers any "notice, statement, or advertisement, with respect to the sale or rental of a dwelling" that indicates a preference based on race, color, religion, sex, handicap, familial status or national origin. Paragraph (d) bars telling anyone, on one of those grounds, "that any dwelling is not available for inspection, sale, or rental when such dwelling is in fact so available." Section 3603(b) exempts some owner-rented houses from all of section 3604 "other than subsection (c)", so the statements rule still reaches them.

HUD's section 100.75 applies to "all written or oral notices or statements by a person engaged in the sale or rental of a dwelling". Section 100.80 covers false availability given "to any person, including testers, regardless of whether such person is actually seeking housing", and a leasing line that answers in seconds is a cheap line to test. Section 100.204 bars refusing a reasonable accommodation in "rules, policies, practices, or services", which is where a no pets policy meets an assistance animal.

Section 100.7 decides who answers for the assistant. Paragraph (b) makes a person vicariously liable for an agent's discriminatory practice "regardless of whether the person knew or should have known of the conduct". Paragraph (a)(1)(iii) adds direct liability for failing to act on a third party's practice the person knew or should have known about and "had the power to correct". The regulation does not say whether software is an agent. Paragraph (b) applies "consistent with agency law", and paragraph (a)(1)(iii) turns on what the business knew or should have known, whether it had the power to correct, and whether it acted promptly. How either route applies to a vendor depends on the facts. A business that picks the vendor, writes the rules and can switch the assistant off is hard to separate from what it says, so we build as if both routes lead to the business.

What happened to HUD's 2024 guidance

HUD announced two documents on May 2, 2024, both dated April 29, 2024, on screening rental applicants and on advertising through digital platforms. Vendor pages still cite them, one saying they put AI tools "under the same scrutiny as human agents" (LetHub), and none we read says what happened next. The status on September 24, 2026:

| Document | Status | Source |

|---|---|---|

| Advertising through digital platforms, April 29, 2024 | Withdrawn, effective September 17, 2025 | FHEO notice, 91 FR 17291, April 6, 2026 |

| Screening of rental applicants, April 29, 2024 | In neither withdrawal notice; the hud.gov address returns a 404 and the text sits on HUD's archive site | archives.hud.gov |

| Assistance animal notices FHEO 2020-01 and 2013-01 | Withdrawn, effective September 17, 2025 | 91 FR 17291 |

| Source of income restrictions, November 4, 2024 | Withdrawn, effective September 25, 2025 | OGC notice, 91 FR 44867, July 17, 2026 |

The April notice says its eight documents "should not be relied upon as authoritative", then adds: "Any actions that do not comply with the text of the Fair Housing Act continue to be subject to enforcement by the Department." We found no notice withdrawing the screening guidance, and we would not build on it either way.

Neither 2024 document mentions a chatbot, a leasing assistant or a voice agent; we searched both. What governs an assistant answering a renter is the statute and the four regulations above, which no withdrawal touched. The live change is elsewhere: on January 14, 2026 HUD proposed removing its discriminatory effects rule, 24 CFR 100.500, and an August 10 supplement on its Title VI rules reopened comments until October 9, limited to topics in that supplement. It is still a proposal, and it bears on screening more than on what an assistant says.

What Massachusetts adds

The federal Fair Housing Act has no source of income ground, though some federal housing programs carry their own rule, such as the tax credit bar on refusing voucher holders. Massachusetts protects voucher holders across the market. Paragraph 10 of c. 151B s. 4 bars discriminating against "a tenant receiving federal, state, or local housing subsidies, including rental assistance or rental supplements, because the individual is such a recipient, or because of any requirement" of the program. So turning a voucher holder away over the inspection or the paperwork is covered too.

Paragraph 7B extends the statements rule to "children, marital status, public assistance recipiency", among other grounds. For the housing they cover, paragraphs 6(c) and 7(c) bar "any written or oral inquiry or record" about the race, religious creed, national origin, sex, age, marital status, veteran status or handicap of someone seeking to rent; paragraph 7 exempts an owner-occupied two-family house. Paragraph 11 bars refusing someone "because such person has a child or children who shall occupy the premises", subject to its occupancy rules and its own short list of exceptions. An exception under one paragraph does not lift the others.

Lead paint is where a well-meaning script goes wrong. Chapter 111 s. 199A bars refusing to rent because a unit may contain dangerous levels of lead, or because renting would trigger the lead law's duties; the deleading duty in s. 197 starts when a child under six lives in a unit with dangerous levels of lead. It adds that refusing families with children "shall not constitute compliance with the lead law". So a lead question gets the same answer from the unit's file whoever asks, and the assistant never raises lead paint because a caller mentioned a toddler. These are the rules any build we scope for a Boston operator starts from.

The eight rules we write before an assistant takes a call

This is the rule set we write for a leasing assistant on a US line, by phone, text or chat; none of it runs in the US today. The assistant applies them without weighing them.

1. Facts about the unit and the process, the same for every caller. Rent, size, availability, move-in date, the written pet and occupancy policy, how to apply, showing times, all from the listing, so two callers asking the same question get the same words.
2. Nothing about the neighbourhood's people or character. Not safe, not family-friendly, not quiet, not who lives there, not schools or places of worship as selling points. Asked "Is it a safe area?", it says: "I can't describe the area. The city publishes its own information, and a showing is the best way to see it." Asked "Is it good for kids?", it gives bedrooms, floor and the building's written rules, and nothing about who the building suits.
3. No questions beyond the application. It asks what the application asks everyone, never about children, disability, religion, national origin or where the income comes from, and never volunteers a preference. What a caller offers unprompted never enters the lead record, the qualification or the reply. How long recordings and transcripts are kept, and who can read them, is a written policy the operator approves before launch, with accommodation requests held apart from lead data.
4. One answer to "Do you take Section 8?" In Massachusetts: "Yes. Every lawful source of income, including a voucher, is considered the same way. Here's how to apply." Never that the owner prefers otherwise, or anything a caller could hear as a no.
5. Accommodation requests go to a named person, in the caller's words. A request for an accommodation, or a caller saying a dog is an assistance animal in a no pets building, is logged word for word and routed, and the caller hears when a person will respond. The assistant never says no, never reads the pet policy back as the answer, and never asks about a diagnosis.
6. Availability comes from the system of record. It reads the listing feed at the moment of the conversation and never says "that one's gone" from memory. When the feed is stale, it says a person will confirm, to everyone.
7. It never screens, scores or decides. It takes the application and books the showing. Eligibility and approval stay with a person, the position in where AI lands in property management: it "should not be deciding who gets the unit".
8. Every conversation is logged, and a flag is acted on the day it surfaces. A complaint, a caller saying they were treated unfairly, or a phrase from the list below goes to a named person at once, and the answer that caused it is switched off until it is fixed. A person also reads the logs each quarter as a backstop. The searches cover the assistant's side for safe, quiet, family, kids, students, young professionals, church, mosque, school district and "type of tenant"; for not available, already rented, waitlist and owner prefers, each matched against the listing status at that minute; and the caller's side for Section 8, voucher, disability, service animal and accommodation, each checked for a routed request. Neither the quarterly read nor the log is a safe harbour; 100.7 asks for prompt action once the business knew or should have known, and the point of reading is to know.

On a Massachusetts phone line the recording notice comes first, an unrequested follow-up text meets the TCPA's consent rules, and the same list governs text and portal replies.

Why after hours decides it

On one Toronto brokerage line we run, 1,190 calls were answered between June 1 and September 10, 2026. Members of the public with a question and no named person made 347 of them, 29.2% of the line, and 38.0% of those came after hours, outside Monday to Friday 9am to 6pm, against 26.4% of realtors. No group called after hours more often (the brokerage call routing post has the split).

Those are the callers a leasing assistant answers alone. On a Sunday evening nobody overhears a bad answer, and what it said about a neighbourhood or a voucher is what the business said, so the rules go in before launch.

The Toronto agent does not run this rule set. It answers, logs, captures a callback number and names who the caller asked for; the line only shows when the questions arrive.

The Toronto twin

The Ontario Human Rights Code, s. 2(1), says "Every person has a right to equal treatment with respect to the occupancy of accommodation", without discrimination on grounds that include "family status, disability or the receipt of public assistance". The rules carry to a Toronto line unchanged; the law cited beside them changes, and rule 4 rests on the public assistance ground rather than a source of income clause.

What we checked

On September 24, 2026 we read the US Code sections on Cornell's Legal Information Institute, the HUD regulations on the eCFR, the notices and proposals on federalregister.gov, both 2024 documents on HUD's archive site, the Massachusetts sections on malegislature.gov and the Code on e-Laws. We could not find HUD's 1995 memo on advertising words on hud.gov, so it is left out.

This is an operator's reading, not legal advice. We run voice agents on a property management line and a brokerage line at one Toronto operation and none in the US, so these are the rules we would build a US leasing assistant to; what runs today is on the property management answering service page.

Frequently asked questions

Can an AI leasing assistant violate fair housing law?

Yes. What it says is what the business says, so a statement indicating a preference (3604(c)), a false "that one's gone" (3604(d)) or a refused accommodation (100.204) counts whoever typed it. The fix is scope: it states the written policy the same way to every caller, and legal questions, complaints and accommodation requests go to a person, logged in the caller's words.

Is it illegal to say a neighbourhood is safe?

No statute or regulation we read lists "safe" as a banned word. 42 U.S.C. 3604(c) and 24 CFR 100.75(c)(1) reach words conveying that a dwelling is or is not available to a particular group, and a description of an area can be heard as one about who lives there or who is welcome. The assistant we would build does not describe an area at all, which removes the question.

Can a landlord in Massachusetts refuse Section 8?

Not because of the voucher or its program. M.G.L. c. 151B s. 4(10) bars discriminating against a tenant receiving housing subsidies "because the individual is such a recipient, or because of any requirement" of the program, and s. 4(7B) bars statements indicating a preference based on "public assistance recipiency". The federal Fair Housing Act does not list source of income, which is why a national script can get Massachusetts wrong.

Is HUD's 2024 AI guidance still in force?

The advertising guidance was withdrawn effective September 17, 2025, by a notice published April 6, 2026. The screening guidance is in no withdrawal notice we found, but it is off hud.gov and on HUD's archive site. The Act and HUD's regulations on statements, availability, accommodations and liability are unchanged.

Who is liable when an AI leasing assistant says something discriminatory?

The housing provider can be. 24 CFR 100.7(b) makes a person vicariously liable, consistent with agency law, for an agent's discriminatory practice "regardless of whether the person knew or should have known of the conduct". Section 100.7(a)(1)(iii) adds liability for failing to take prompt action against a third party's practice the provider knew or should have known about and had the power to correct. How that applies to a vendor depends on the relationship, which is why we build as if it lands on the provider.