Tenant Is Not Paying (Southern California)

[Wesley Kuo]

Greetings BP family,

I anticipate my amateur story will bring harsh criticism, but I really need some help before the situation snowballs into catastrophe. Here it is:

One of the tenants in my duplex rental in Whittier, California is not paying rent for November.  I have been reminding the tenant via messages that the rent is due. Yet even with the tenant's promise to pay rent with the late charge, the rent is not received as of the 11th day of the month.

I am not sure what I should do next. A 3 day notice? The California Rental Agreement does not really elaborate on what comes after the late charge if tenant still does not pay rent.

Thank you all.

Wesley