A Pasadena Landlord Just Lost $47,000 Because She Didn't Know the 90-Day Rule Before Selling

Maria Castellanos closed on the sale of her Pasadena duplex at 847 North Mentor Avenue last April for $1.34 million. Three weeks later, her buyer sued her for $47,000 — the exact amount it cost to relocate two tenants she'd assumed would simply leave when the property changed hands. The buyer won. Castellanos had failed to provide the legally required 90-day notice under AB 1482, and the obligation transferred to the new owner along with the deed.

This is the most expensive mistake in California real estate that almost nobody talks about until it's too late.

Under the Tenant Protection Act of 2019, which remains fully in effect through 2026, any tenant who has occupied a unit continuously for twelve months or longer cannot be removed simply because a property sells. The new owner inherits the lease, the tenant's rights, and every obligation the previous landlord carried. In cities with local rent control — Los Angeles, San Francisco, Oakland, Santa Monica, Berkeley, West Hollywood — additional layers apply. A buyer in San Francisco's Mission District isn't just buying a building; they're buying a relationship with tenants who may have stronger rights than the deed suggests.

The 90-day rule is where most transactions fall apart. If you're selling a property covered by AB 1482 and you want the buyer to take possession vacant, you must serve a written termination notice at least 90 days before the close of escrow. That notice must include a specific reason — owner move-in, substantial renovation, or withdrawal from the rental market under the Ellis Act — and it must be accompanied by relocation assistance equal to one month's rent. In Los Angeles, that relocation figure can climb to $22,440 per household for qualifying tenants as of June 2026, adjusted annually by the city's Rent Adjustment Commission.

Buyers, understand this clearly: if you purchase a tenant-occupied property and the seller did not properly terminate the tenancy before close, you cannot simply evict. You inherit the lease at its current terms. If that tenant pays $1,800 for a two-bedroom in Silver Lake that would rent for $3,400 on the open market, that $1,800 lease is now yours to honor. Your cap on annual increases under AB 1482 is 5% plus the local Consumer Price Index, maxing at 10%. In most of California right now, that means you can raise rent roughly 8.9% per year — not enough to close a $1,600 gap in your lifetime.

This is why cash-for-keys exists, and why sophisticated investors treat it as a line item, not a last resort.

Cash-for-keys is exactly what it sounds like: you offer a tenant money to voluntarily vacate by a specific date, documented in a written agreement. There is no statutory amount. I've seen deals close in San Diego for $3,000 and deals in Palo Alto that required $85,000 for a family who'd lived in a rent-controlled cottage since 2011. The median in Southern California right now hovers around $15,000 to $25,000 for a single-family tenant, higher in coastal markets, lower in the Inland Empire.

The agreement must be in writing. It must specify the exact move-out date, the exact payment amount, and a clear statement that the tenant is voluntarily surrendering their rights. Have an attorney draft it — not a template from the internet. The $400 you spend on legal review will save you from the $40,000 lawsuit when a tenant claims they were coerced.

Here's what you should do this week if you're on either side of this transaction:

Sellers: Pull your lease agreements and calculate each tenant's occupancy length. Anyone over twelve months triggers AB 1482 protections statewide. Check whether your property falls under any local ordinance — Los Angeles RSO, San Francisco Rent Ordinance, Oakland's Just Cause for Eviction Ordinance. Begin conversations with tenants now, before you list. A buyer paying $1.2 million for your East Bay triplex will pay $1.35 million for that same triplex delivered vacant. The premium often exceeds what you'll spend on relocation.

Buyers: Demand rent ledgers, signed leases, and maintenance records before you remove contingencies. Your purchase agreement should specify who bears relocation costs if any tenant hasn't been properly noticed. Build cash-for-keys into your acquisition budget — assume $20,000 per unit as a baseline in urban California. If the numbers don't work with tenants in place, the numbers don't work.

The mistake most people make is treating tenant-occupied property like a standard transaction with a minor complication. It isn't. The tenant's rights are a material fact of the asset, as real as the foundation or the roof. In California, you're not just buying property — you're buying a legal relationship that the state will enforce aggressively.

The reframe is this: tenant-occupied properties aren't problems to solve. They're leverage to negotiate. Every buyer who walks away because they don't understand the 90-day rule is a buyer who would have underpaid you anyway. The sophisticated money knows exactly what these units are worth, tenants and all — and they're waiting for you to bring a clean file to the table.