Tenant refuses inspections and showings

[Bob Lowry]

Property in CA and used Realtor forms for annual lease that expires 6/7/14. Tenant has given notice to vacate 23 days after lease expires, 6/30/14. I have told them that if they activate such an extension it would only be permitted on a per diem rate that is 30% higher than the per diem rate under the lease. Tenant agreed to the extension but now will not allow a landlord inspection of the premises. They also refuse to allow showings of the property to prospective tenants. They also are stating they will not pay last months rent and instructed me to use their security deposit, which is boldy denied in the lease they signed. What are my options?