My Tenant Gave 30 Days Notice and Then Squatted the Final Month for Free

The text came at 10:12 on a Sunday night while I was brushing my teeth: "Just to confirm I will be out May 31 and per my notice I won't owe June. Thanks for everything!" My tenant had moved out May 31, flawlessly, broom-clean, keys in a lockbox. And she believed — sincerely, on advice, she said — that June was hers free. I stood there with an electric toothbrush in my mouth doing the arithmetic on a duplex that had paid its own mortgage for three years.

the notice that was off by one day

Her written notice, delivered April 2, said she was terminating "as of May 31." Our state's statute requires notice of at least 30 days before "the end of the rental period" — and here's the trap — terminated effective at the end of a rental period, meaning the last day of the month FOLLOWING a full month's notice. Her lease month ran to the last day of the month. April 2 notice, counted legally, got her to May 31 as the end of the notice period, but she framed her notice as ending the tenancy May 31, which the statute read as one day short: the tenancy actually terminated June 30.

I know. I've now detailed this to four people and watched all four faces do what mine did.

three weeks of being sure I was right

I did what confident people do: I consulted my own outrage. I read the statute twice, printed it, highlighted it, and drove to the house to change the locks — and then, thank God, I called a tenant-landlord clinic before the locksmith, cuz the volunteer on the phone asked me one question: "When did her rental period end?"

The clinic confirmed her reading. The notice was defective — not in her favor, in a neutral sense: a defective notice simply fails, the tenancy continues on its regular calendar thru the end of the next period, and rent is owed for June. Except she'd moved out. So we were in the strangest possible configuration: a vacant, spotless unit whose tenancy legally ran thru June 30, and a former tenant who'd been told by someone — a TikTok, a friend, a manifesto, who knows — that the defective notice meant free rent.

what the law actually says about a vacant unit

This is the part nobody tells landlords: in most states, when a tenant vacates before the end of the tenancy, the duty to mitigate kicks in — the landlord must try to re-rent. But if the unit is vacated BEFORE the tenancy ends and the landlord re-rents mid-June, the tenant owes rent only through the re-rental date. My misfortune: it was a slow June. I showed the unit eleven times, got two applications, one of which was a fictional employment letter I caught with a five-minute phone call, and re-rented effective July 1.

Legally, that meant June was owed at full rent, $1,650, from a tenant now living in another state who believed she owed nothing. Practically, it meant modest claims court, a filing fee of $74, and approximately nine weeks of my life — nine weeks in which the vacant unit earned nothing while its carrying costs came out of a savings account that had, at least, been sitting in a high-yield account earning 4 percent instead of a checking account earning nothing. Slight consolations.

the part that surprised me: I almost didn't sue

I wanna admit something. I drafted the lawsuit twice and deleted it twice, because the tenant wasn't a villain. She gave proper-ish notice, left the place immaculate, watered nothing over, paid three years without a late month. She got bad advice about a one-day technicality, and her surprise read as genuine. If I'd been her landlord in a mood, I could have eaten June. Plenty of modest landlords do, quietly, every month, and that's a tax nobody itemizes.

But $1,650 plus the filing fee was my decision to make, and the clinic's phrasing settled it: "A defective notice doesn't create free rent. It creates a dispute. Someone has to decide who eats the month, and the statute says it isn't automatically you." I filed.

court, in one paragraph

Modest claims was four cases on a Friday morning, a hearing room that smelled like toner, and a magistrate who'd plainly heard this exact fact pattern enough to have a laminated statute copy. My former tenant represented herself, was respectful, and said the truest sentence of the day: "I didn't invent this. Someone told me the notice date didn't matter." The magistrate awarded me the June rent less the security deposit applied, $1,240 net, plus half the filing fee. She asked for a payment plan. I agreed to three months. She paid all three, on time, which I mention because the story deserves an ending without a villain.

the clause I now use, verbatim

My lease and my notice-acceptance ritual changed forever. When a tenant gives notice now, I respond within 24 hours in writing: "Received. Your rental period ends on the last day of the month. To terminate effective [DATE], your notice must be delivered at least 30 days before the end of the rental period preceding that date. Based on your delivery date of [DATE], your tenancy terminates [DATE] and rent is due through that date." It reads like a robot wrote it, cuz after June 2026, a robot is exactly who I trust with dates.

the toothbrush, at the end

I still brush my teeth at 10:12 PM and sometimes think about that text, its chirpy "Thanks for everything!" sitting on top of a $1,650 dispute neither of us wanted. She wasn't a squatter in any moral sense — she never occupied the unit in June; the squattable thing was a calendar gap, and she was told it was hers. If you own a rental, the lesson costs you nothing tonight: look at your tenant's notice, then look at a calendar, then write back in writing before anyone starts packing. The difference between May 31 and June 30 was, for one month of one year, my entire mortgage payment.