I am curious to hear some of your stories on tenants in Los Angeles County when it comes to their lease expiring and whether or not they can stay even if you do not want them to??

For example: I have a tenant and their lease is up on April 1st. Even if they want to renew am I allowed to say no and have them move out?

I am looking to purchase a multi-unit within the next six months so I would like to shed some light on this topic before I get into something that might not be ideal for my situation.