Tenant termination prior to lease expiration - Fee collection

[Adam Sharp]

Hi BP - 

My tenant just provided notice to terminate her lease on my condo in Seattle, WA.  The lease reads that rent is due though the following month and a 1mo charge is levied.  I am holding 1mo security deposit currently.

So she paid OCT rent, and per the lease should pay NOV rent ($2k) + 1mo fee ($2k).

I know she is just going to walk and not pay the additional rent or fee ($4k total)....why wouldn't she?

What should I do?  And how should I approach it with her?

My assumption is if she does not pay the contractual amounts above, she will be in breach and I keep the deposit in worst case scenario - but that leaves me on the hook for any damages, downtime, and finding a new tenant.

I know the answer is there is probably nothing you can do (aside from sue her).  But does anyone have any constructive advice on this?  I'm sure it happens all the time but this is my first rental and first time in this situation.

Thanks in advance!