Best way to remove a month to month tenant

[Brandt Osborne]

I just purchased a condo with a month to month renter. She pays on time, no issues with her. But i want to update it and resell it. What is the best way to get her to move out? Raise the rent to a very high rate and either she agrees or moves out or send her notice to move out within 30 days? What form should I use? I am a licensed real estate agent but this is my first time dealing with leases/renters. FYI this is in Texas.