Nevada Lease agreement renewal questions

[Danushka Abeyasekera]

I have a 4 plex and one of my tenants are up on their lease. I am planning to increase the rent when the lease is over. How do I proceed with this. Do I sign a addendum with the new rent increase without giving a 45 day notice or do I have to give a 45 day notice since the lease says once its expired it goes to month to month.