Tenant gave 1 week notice said they are moving out.

[Aaron Harren]

Tenant text me last week Thursday saying they are moving out on April 30th.  They sent a text message stating that there are plumbing issues with drains not draining (first time they have ever told me about these issues) and at the end of the message they said that they were waiting to find a new place before they let me know and now they are moving out.  They are 6 months into there 12 month lease.  How can I handle the deposit once they leave.  Can I keep the deposit for them just leaving with a weeks notice only and with the lease still active?

Thanks

Aaron