30 day notice first home in ohio

[Amr Taweel]

hi I just bought my first home FHA and just closed on it today. its a side by side multi family unit. there both occupied and I will be keeping one tenant and giving a 30 day notice to the other as they are both month to month. how do I go about giving them a 30 day notice. I tried searching up Ohio laws and didn't find much. Also what should my next steps be as the title gets transferred into my name this afternoon. thank you in advance for the guidance in my first investment.