Under the laws of all states, a 30 day written notice of termination is standard for a landlord to terminate a tenant's lease given appropriate circumstances such as a breach of the lease by the tenant or if the tenant is on a month-to-month lease.Your sister is required to get a 30 day written termination of the lease from your father.If your sister took money from your father without asking him, your father as her landlord has the right to terminate her lease. In essence your sister "stole" money from your father. I suggest that you, your father and sister try to square things up between you so that she can remain in the unit.