Sometimes. No federal law protects medical marijuana patients in housing, and federally assisted housing must still screen out illegal drug use. Some states, such as Arizona, bar refusing a registered cardholder. In the US a lease can usually ban smoking in the unit, but Ontario expects a landlord to accommodate a medical user. This is information, not legal advice.
Does federal law protect medical marijuana patients?
No. Marijuana use is not a protected class under the Fair Housing Act, and federal disability law does not cover use of a drug that is illegal under federal law.
The federal picture did shift in 2026. On April 23, 2026, the Justice Department placed FDA-approved marijuana products, and products under a qualifying state medical license, in Schedule III of the Controlled Substances Act. A broader rescheduling hearing began June 29, 2026. That change is about drug control and research. It did not create a housing right, and Schedule III drugs are still controlled substances.
Which states bar refusing a medical cannabis cardholder?
A minority, and the wording matters. Arizona's statute, ARS 36-2813(A), says no landlord may refuse to lease to, or otherwise penalize, a person solely for their status as a cardholder, unless doing so would cost the landlord a monetary or licensing benefit under federal law.
Read that carefully. It protects status, the fact of holding a card. It does not require a landlord to allow smoking in the unit. Other states use similar language, and some have none, so check the medical program law where each unit sits. NCSL reports 41 states, three territories and DC allow medical use as of June 26, 2025, which is how many markets have a program at all, not how many protect patients in housing.
What about Section 8 and other assisted housing?
Federal rules win there. Under 42 U.S.C. 13661(b), owners of federally assisted housing must set standards barring admission of any household with a member who is illegally using a controlled substance. HUD's own FAQ says a housing agency cannot make a reasonable accommodation for medical marijuana. A state card does not override the federal screening rule.
That is also why Arizona's statute carves out the federal benefit. An owner who would lose a subsidy or a federal licence is not required to admit the cardholder.
Can a US landlord ban smoking cannabis in the unit?
Usually yes. In most US states a no-smoking clause that names cannabis applies to every tenant, patient or not, because protecting a patient's status is different from allowing smoke in a shared building. Non-smoked forms are where the line gets tested, and a written clause that says which forms are banned avoids the argument. Our post on refusing a smoker covers how to write that clause.
How does this work in Canada?
Differently, because the condition behind the prescription is often a disability. In BC, section 10 of the Human Rights Code bars denying a tenancy because of physical or mental disability. Ontario's rental housing policy sets a duty to accommodate short of undue hardship.
In practice that reaches further than a US lease. Ontario's Steps to Justice, from Community Legal Education Ontario, says that once a landlord knows a tenant uses cannabis for a medical reason, the landlord must let them smoke or vape it in the unit, even where other residents may not, unless it causes undue hardship. A no-smoking clause is a starting point in Ontario, not the final answer.
What should a property manager put in writing?
- Do not ask about medical cannabis or any prescription on the application.
- Put a no-smoking clause in every lease that names tobacco, cannabis and vaping separately.
- For assisted units, follow the program's federal screening rules and say so in your criteria.
- Route accommodation requests to a person, and in Canada treat them as a human rights question. Our post on disability questions covers that process.
Where this goes wrong in practice is the first reply. A prospect asks "I have a medical card, is that a problem?" and the answer is "we don't allow marijuana." In Arizona that reply can read as a refusal based on cardholder status, and in Ontario it skips the accommodation conversation. A better answer is the property's written smoking rule plus how to ask for an accommodation.
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Medical marijuana and rentals: FAQ
Did rescheduling make medical marijuana legal in rentals?
No. The April 2026 order moved state-licensed medical products to Schedule III under federal drug law. It created no housing protection, and assisted housing screening rules still apply.
Can a landlord evict a tenant for using medical marijuana?
In the US, usually only for a lease breach, such as smoking where the lease bans it. In a state like Arizona, evicting solely because the tenant holds a card is a penalty for status the statute bars. In Ontario, the landlord must consider accommodation first.
Can a landlord ask if I have a medical marijuana card?
The answer has little lawful use outside assisted housing, and in states that protect cardholders it invites a claim. Ask instead whether the applicant will follow the property's smoking rules.
