@Baltimore

The landlord must pay the tenant interest on the rent deposit every year. If the rent increases after the tenant has paid a rent deposit, the landlord can require the tenant to top-up the rent deposit so that it is the same as the new rent. The landlord can use the interest on the rent deposit to top-up the rent deposit.

最后1个月租金的利息和涨幅是两回事。房东可以要求房客补足涨价后的最后1月租金，也可以用最后1月租金的利息来抵差额部分，完全没说是100%相互抵销的。