Monthly rental

I am waiting for my sister apartment the tenant to reply my sms. I send a few to her but she no reply to me she told me earlier that she is divorce and she needs time to pay the rental. I will need to find time to send her sms that if she cannot afford to rent the place she can move out! The apartment is belong to my sister she needs money every month even though she is nun now. Every family have got problem and I cannot help all of them.