Rental Agreement Example What Is The Law If Landlord And Tenant Don't Have The Rental Agreement?

What is the law if landlord and tenant don't have the rental agreement? - rental agreement example

I wonder what the law, if the landlord and the tenant has a lease? What are the rights of both parties? Example: The tenant owes money to the owners and decided the owners to sell the house. Tenant Landlord has given 30 days to move knowledge. What can the landlord if the tenant fails to pay the payments and the tenant can do in this situation. They have no agreement on the rent or more spmething. Only the calculations on paper, which must pay the tenant. Thank you!