Ask a landlord-tenant lawyer and get answers ASAP
Good evening. I am Loren, a licensed attorney, and I look forward to assisting you.
Let them know that you will enforce the lease whether they live there or not and that the condition of the premises is habitable and in compliance with the lease. If they move out or stop paying rent then you will need to sue immediately for breach of the lease.
If the lease allows, you can also claim your attorney fees. Point out to them that their exposure is much more than just the rent.
Are you online with me?