Lease Termination

I live in a rented apartment in Oklahoma. I would like to terminate the agreement for valid reasons. I would like to know the duties of the parties upon termination of the tenancy?

I was unable to pay my rent for the last two months. My landlord has sent me a notice of termination of the rental agreement. If I pay all the default rent payment within the time specified in the notice (7days), will the landlord still be entitled to terminate the rental agreement?

I am living in a rented house in Alabama. Last week my friend visited me and left some Kratom (drugs) in my house. At present, my friend is out of town so I am forced to keep the drugs until my friend returns. I am not into drugs at all. Can my landlord terminate the rental agreement if I keep drugs in the house?

Last week some people entered into my rented apartment and started hitting me. Those people were drunk and wanted to get some money from me. In self-defense, I hit those people back. Now my landlord says that he wants to terminate the rental agreement because I got involved in a fight in the premises of the rental property. Can my landlord terminate the rental agreement?

My tenant lives on the ground floor of my house. Last Friday my friend and I were peacefully sitting in the garden chit chatting. All of a sudden, my tenant came and started hitting my friend. Lately, my tenant has been causing a lot of nuisance. Can I terminate the rental agreement?