If a landlord asks you to renew your lease 3 months in advance and you say no do you have to leave before the lease is up or can you stay until it's up?

If you decline to renew your lease, you are not required to leave immediately; you can stay until the lease officially expires. However, it's important to check the lease terms and local laws, as some agreements may have specific clauses regarding notice periods. Generally, unless the landlord provides a valid reason to terminate the lease early, you have the right to remain in the property until the lease ends.