When One Roommate Leaves and the Others Stay

A text arrives from one of the three people on your lease. She's moving out at the end of March, her friend is taking the room, they've already sorted it between themselves, and is that okay?

It sounds like a courtesy. Say yes casually and you've just created a situation where the document you'd rely on in a dispute names someone who no longer lives there and omits someone who does.

Your lease is one agreement, not three

Most leases signed by several adults make each of them responsible for the whole rent, not a share of it — check that yours actually says so, because it's the clause everything else rests on. One tenant leaving does not divide that obligation, and it does not end it. Until the lease is changed in writing, the departing roommate is still on the hook and the incoming one owes you nothing.

That's the trap in a casual yes. You've informally released someone who is still legally bound, and informally admitted someone who isn't. If rent goes unpaid in June, you're holding a document that describes neither the people living there nor the arrangement everyone believes they agreed to.

The deposit is one sum, and splitting it isn't your job

You hold a single deposit against the tenancy. It doesn't matter which roommate's money funded which part of it — you took it as one amount and you account for it as one amount at the end.

So when a departing roommate asks for their third back, the answer is that their claim is against their roommates, not against you. Whatever they settle between themselves is their business, but it happens outside your accounting. Paying out a share mid-tenancy leaves you under-covered for the remaining term with no clean record of why.

Your state has rules about how deposits are held and returned, and those govern what you can do here, so confirm them before agreeing to anything that moves money.

Addendum or new lease?

Two clean ways to do this, and one messy one to avoid.

• An addendum to the existing lease, signed by everyone — outgoing, incoming, and remaining — that releases one person, adds another, and confirms the terms are otherwise unchanged. Simplest when the lease still has a while to run.
• A new lease with the current occupants, which is usually the better move when renewal is close anyway. It resets the deposit accounting cleanly and gives you a document with no history to explain.
• A verbal agreement, which is the messy one, and the one this whole situation defaults to unless you stop it.

Either way, run the incoming roommate through the same screening you'd apply to any applicant — the same written criteria, the same checks, the same record of the decision. A roommate referral is not a substitute for screening, and treating it as one means you've applied your standard to some people and not others.

How LandlordViva helps

LandlordViva keeps tenants attached to the unit and lease they belong to, so when the roster changes, the record changes with it instead of drifting out of date. Deposits stay tracked as a single figure against the tenancy, lease documents and addenda live with the lease they amend, and you can produce the current, accurate paperwork as a PDF when someone asks who is actually on this agreement.

Roommate changes are routine. What makes them expensive is that they happen by text message, and the lease is the last thing anyone updates.