My question involves landlord-tenant law in the State of: California
Let's say a landlord sends you a notice notifying you of a modification in the terms of your contract. Sometimes it is a rent increase notice. But sometimes it can be a change in terms of late fee. For example, the landlord might earlier have imposed a 5% late fee for anytime the rent was received more than 10 days late. So the landlord sends you a notice that this is being changed to a 10% late fee for anytime the rent was received more than 3 days late.
Let's say you were to counter that by sending them a note which said anytime they didn't provide something which wasn't explicitly spelled out in the contract - such as access, cleanliness, etc. - you could charge them a 10% discount on your rent. Would your note be binding in the same manner a note modifying the late fee to you would be binding?
And what if your note to them said if they charge a late fee, then if you make your next payment at least 15 days early, then they will refund the late fee. Would that be binding?