Why this is extremely risky (especially in California)
If the tenant has a valid lease or lawful possession, the actions you described are almost always illegal:
Changing locks without a court order
Removing tenant belongings
Taking possession while the tenant still has legal occupancy
“Waiting until they leave and moving in” without formal surrender
In California, possession matters more than presence. A tenant does not lose rights just because they step out for work, travel, or a few days.
If a tenant can show:
A lease
Utility usage
Personal property inside
Mail delivery
Prior access
You are exposed.
Potential consequences (real, not theoretical)
Landlords who attempt this can face:
Statutory damages (often several times monthly rent)
Treble damages in some jurisdictions
Attorney’s fees for the tenant
Punitive damages
Criminal charges in extreme cases
A judge who is already hostile before the case even starts
In California, judges are not neutral on this issue.
The realtor saying “it’s never happened before” is meaningless. All it takes is one tenant who knows their rights or calls Legal Aid.
When this might be legal (very narrow scenarios)
There are only a few situations where taking possession without eviction court is defensible:
Clear abandonment, documented thoroughly
No belongings
Utilities off
Written surrender
Keys returned
Squatters with no tenancy established, and even this is increasingly contested
Post-eviction lockout, after a sheriff executes a writ
What you described does not fit these categories if there is a valid lease.
Why people still talk about it
This “service” persists because:
It sometimes works when tenants are unsophisticated
Tenants don’t always fight back
Enforcement is complaint-driven
But when it fails, it fails badly.
This is survivorship bias, not legality.
The correct play in California
If the tenant has a lease:
Serve proper notice (pay or quit, cure or quit, etc.)
File unlawful detainer
Let the sheriff handle possession
If timing or cash flow is the issue:
Cash-for-keys, properly documented, is far safer
Voluntary surrender agreements work if done correctly
Mediation often resolves faster than court
This is not a gray area for landlords.
It’s only gray for people willing to gamble on tenants not fighting back.
If someone is offering this as a “service,” they are shifting all legal risk to you, not them.