Cash for keys instead of eviction

[Rousner E.]

Long story, I got a tenant who I found out how had moved her boyfriend into the house and he was smoking weed in the house. State of TN requires a 3 day notice to the tenants that the lease will end due to illegal activity/drug use. I gave them 5 days and offered to return the security deposit. From your experience what do I need to be mindful of and prepare for? I am planning on calling the sheriffs that morning to have them come to the property with me and I will switch the locks right then and there, conduct an inspection of the property and give the tenant a check for the security deposit that same day. Am I missing anything?