I own four single family houses in Marietta and Woodstock, and I am thinking about raising the rent. The leases end on 5/31/22 and will then automatically become month to month. Since they are month-to-month, I am wondering if I can just give a month's notice for rent increase. 

As far as I can find, the handbook and code do not specifically address rent increase notice. What it does say is: "Sixty days´ notice from the landlord or 30 days´ notice from the tenant is necessary to terminate a tenancy at will." 

Since I am not terminating a tenancy and the leases are month to month, do you know if I can just give 30 (or 40 or whatever - something less than 60) days' notice to raise the rent? 

If you are a Georgia attorney who works with this kind of thing and you don't want to put anything in writing, feel free to send me an individual message and we can have a conversation. Thanks!