What laws cover rent due dates, late rent and rent increases?

By custom, leases and rental agreements usually require rent to be paid monthly, in advance. Often rent is due on the first day of the month. However, it is legal for a landlord to require rent to be paid at different intervals or on a different day of the month. Unless the lease or rental agreement specifies otherwise, there is no legally-recognized grace period--in other words, if a tenant hasn't paid the rent on time, the landlord can usually terminate the tenancy the day after it is due. Some landlords charge fees for late payment of rent or for bounced checks; these fees are usually legal if they are reasonable. The laws on late fees can be found in your state's landlord-tenant statutes.

For month-to-month rentals, the landlord can raise the rent (subject to any rent control laws) with proper written notice, typically 30 days. With a fixed-term lease, the landlord may not raise the rent during the lease, unless the increase is specifically called for in the lease, or the tenant agrees.