Where the landlord needs a reason to end it
The name suggests that either side can end the arrangement with a month's notice and no questions asked. For the tenant that is close to true almost everywhere. For the landlord it is true in fewer places every year, and the gap between what people assume and what the law says is where most month-to-month disputes start. California is the biggest example. Once a tenant has lawfully occupied a unit for 12 months, Civil Code section 1946.2 bars the owner from ending the tenancy without just cause. A no-fault reason, such as the owner moving in or taking the unit off the rental market, also requires relocation help equal to one month's rent. Some single-family homes and condos are exempt, but only where the owner is not a corporation, a real estate investment trust or an LLC with a corporate member, and only where the tenant was given the exemption notice in the exact wording the statute sets out. The section is due to expire on January 1, 2030 unless the legislature extends it. Outside a few exceptions, Oregon lets a landlord end a month-to-month tenancy without cause only during the first year of occupancy. After that the landlord needs a tenant cause or one of four landlord reasons, such as demolition or a family member moving in, gives 90 days' notice, and pays one month's rent if the landlord owns more than four units. Washington requires one of the causes listed in its statute to end any periodic tenancy. Colorado's for-cause eviction law, in force since April 19, 2024, requires a listed reason in many cases, subject to its exemptions. New Jersey has had its Anti-Eviction Act for decades, New York has a Good Cause Eviction law in some areas, and a long list of cities have ordinances of their own. Clause 15(b) does not try to list all of this. It says that where your state or city requires a reason, a longer notice or a relocation payment, the landlord must comply, and that the agreement gives the landlord no right to end the tenancy that the law withholds. Check your own rules before relying on the flexibility the name promises.