What Is the Mrs. Murphy Exemption?
The Mrs. Murphy exemption is the small-landlord carve-out in the federal Fair Housing Act. If you live in one unit of a duplex, triplex, or fourplex and rent out the others, parts of the Act don’t apply to you. But it’s a lot narrower than most people think… and in some states, it barely exists at all.
Mrs. Murphy Exemption: The Mrs. Murphy exemption is a Fair Housing Act rule, 42 U.S.C. § 3603(b)(2), that exempts rooms or units in a building with living quarters for four or fewer families when the owner lives in one of them. The ban on discriminatory advertising still applies, federal law still bars race discrimination, and some states, like Idaho, are stricter.
The Exact Rule
Here’s the text of 42 U.S.C. § 3603(b)(2). The Fair Housing Act’s rules in § 3604, except subsection (c), don’t apply to:
“rooms or units in dwellings containing living quarters occupied or intended to be occupied by no more than four families living independently of each other, if the owner actually maintains and occupies one of such living quarters as his residence.”
In plain English, you need all three:
A building with living quarters for four families or fewer
You own it
You actually live in one of the units
What’s Never Exempt
Discriminatory ads. The exemption skips § 3604(c) on purpose. Even an exempt owner can’t publish any notice, statement, or ad that shows a preference or limitation based on race, color, religion, sex, handicap, familial status, or national origin. That includes texts and listings. In one HUD case, a judge found the owner did qualify for the exemption and still held them liable for discriminatory text messages.
Race discrimination. A separate law, 42 U.S.C. § 1982 from the Civil Rights Act of 1866, gives every citizen the same right to rent and buy property. In Jones v. Alfred H. Mayer Co. (1968), the Supreme Court held that § 1982 “bars all racial discrimination, private as well as public, in the sale or rental of property,” and it has none of the Fair Housing Act’s exemptions.
State and local law. Many states have their own fair housing laws with smaller exemptions, or none.
Mrs. Murphy vs. the Single-Family Exemption
The Fair Housing Act has a second small-owner exemption for single-family homes, § 3603(b)(1). People mix them up all the time.
Mrs. Murphy, § 3603(b)(2) | Single-family, § 3603(b)(1) | |
|---|---|---|
Property | Building with living quarters for 4 or fewer families | A single-family house |
Owner must live there? | Yes | No, but limits apply |
Owner limit | None in the statute | No more than 3 single-family houses |
Using a broker or agent | No broker condition in the statute | Using a broker, agent, or anyone in the business of renting ends the exemption |
Discriminatory ads | Still illegal | Still illegal |
That broker row surprises people. Plenty of websites say hiring an agent or property manager kills the Mrs. Murphy exemption. The statute only puts that condition on the single-family exemption. HUD’s regulation (24 C.F.R. § 100.10) reads the same way.
An Example With Numbers
Picture this… An owner buys a fourplex, lives in Unit A, and rents Units B, C, and D for $1,150 a month each. Under federal law alone, they likely qualify for the Mrs. Murphy exemption when choosing tenants for those three units.
Now move that same fourplex to Idaho. Different answer.
How Idaho Handles It
Here’s how it looks in Idaho, where Bellhaven is based. The Idaho Human Rights Act covers housing. Idaho Code § 67-5909(8) bars discrimination in real estate transactions based on race, color, religion, sex, national origin, or disability.
Idaho’s exemption is much smaller. Idaho Code § 67-5910(7) only exempts:
“the rental of a housing accommodation in a building which contains housing accommodations for not more than two (2) families living independently of each other, if the lessor or a member of his family resides in one (1) of the housing accommodations,” or
“the rental of a room or rooms in a housing accommodation by an individual if he or a member of his family resides therein.”
The Idaho Human Rights Commission sums it up: “An exemption is made for an owner occupied duplex.” So the owner-occupied fourplex from the example above is exempt under federal law but covered by Idaho law. Two units, not four.
Where the Name Comes From
“Mrs. Murphy” was shorthand during the early 1960s civil rights debates for the owner of a small rooming house. Senator George Aiken of Vermont is credited with proposing to let “the ‘Mrs. Murphys,’ who run small rooming houses” choose their tenants. The label stuck, and it carried into the Fair Housing Act, which President Johnson signed on April 11, 1968.
Our Take
Even if you qualify, don’t build your rental business around this exemption. It doesn’t cover ads or race, your state may not recognize it, and the facts that make you exempt (like living on site) can change. Pick tenants on written, consistent criteria and you’ll never need it.
Mrs. Murphy Exemption FAQs
Does the Mrs. Murphy exemption apply to a duplex or fourplex?
Under federal law, yes, as long as the building has living quarters for four or fewer families and the owner lives in one of them. Some states, like Idaho, only exempt owner-occupied duplexes.
Can an exempt landlord advertise “no kids”?
No. The ban on discriminatory ads in § 3604(c) still applies to exempt owners, and familial status is a protected class under federal law.
Does the exemption apply if I use a property manager?
The federal statute doesn’t put a broker or manager condition on the Mrs. Murphy exemption. That condition only applies to the single-family exemption. State law and the manager’s own legal duties are separate questions.
Does the Mrs. Murphy exemption allow race discrimination?
No. 42 U.S.C. § 1982 bars race discrimination in renting and selling property, with no Mrs. Murphy exception.
Does Idaho have a Mrs. Murphy exemption?
A narrower one. Idaho Code § 67-5910(7) exempts owner-occupied buildings with no more than two families, plus renting rooms in a home the owner or their family lives in.
This is general information, not legal advice. If you own a small multifamily like an owner-occupied fourplex and want the tenant side handled by the book, that’s what Bellhaven Property Management does.
