房东要学会说 NO，对于房客无理的，违背租约的请求，就说NO， I CAN NOT，YOU CANNOT STAY IF

YOU DO NOT PAY RENT, YOU HAVE TO VACANT/MOVE OUT .

YOU NEED TO FIND A PLACE IF YOU CAN NOT PAY PAST DUE RENT 。

I WILL FILE EVCTION IF YOU CAN NOT PAY PAST DUE RENT IN 48 HOURS。等等，不说废话。

说到做到，每句话都有力量。