When to ask the tenant to leave ?

[Manoj N.]

I have a tenant who stayed in my property for more than a year paying rents before 5th of every month. She is due for 1/3rd of November rent and full December rent now. She wants more time (did not give a definite date) citing an issue with her clients not paying. Her lease ends on May 31 2017. I am in dilemma whether to ask her to leave the house or give her more time.  Any thoughts ? Thanks