1904. The lessor may not exact any instalment in excess of one month’s rent; he may not exact payment of rent in advance for more than the first payment period or, if that period exceeds one month, payment of more than one month’s rent.
Nor may he exact any amount of money other than the rent, in the form of a deposit or otherwise, or demand that payment be made by postdated cheque or any other postdated instrument.