Can a landlord collect rent for remaining months of lease if he authorized early termination?

4 girls renting from a landlord. The lease is automatic renewal unless the tenant(s) or landlord end lease. Notification must be made at least 30 days prior to end of lease. The 4 girls began email conversation with the landlord on 02/22/17. He stated he always assumed there would be a loss of rent between tenants and they could end the lease and move out on 05/31/17 even though the original end of the lease would have been 07/31/17. It's 05/31/17 and he is stating that they owe the rent for June/July. He called my daughter and was very rude and intimidating and then abruptly hung up the phone. The final walk thru was scheduled on 05/31/17 at 7 pm to make it convenient for him and his wife. His wife did not attend the walk thru and stated she would be going over on 06/01/17. My daughter asked him to notify her the time that his wife would be doing the walk thru so that she and her roommate could be present. He said he would. However, its 12 pm and we have heard nothing from landlord.