607. Nature of a service charge.

In contrast to payment of a rent (strictly so called)1, other sums of money are usually payable by the tenant to the landlord2 under the tenant's covenants in the lease. For example, the tenant may covenant to reimburse the landlord the cost of insuring the premises, or, in a lease of a flat, to reimburse the landlord a proportionate part of the landlord's expenditure in carrying out repairs to the building of which the flat forms a part. These covenanted sums are not rents unless they are expressly reserved as rents3 (as they usually are) and, if they are