legal entity, or any combination thereof.
(10) "Premises" means a dwelling unit and the structure of which it is a part and facilities and appurtenances therein and grounds, areas and facilities held out for the use of tenants generally or whose use is promised to the tenant.
(11) "Rent" means all money, other than a security deposit, a nonrefundable fee or money paid to the landlord by the tenant for damage caused by the tenant to the dwelling unit, owed or paid to the landlord under the rental agreement.
(12) "Rental agreement" means all agreements, written (including an electronic record as defined by paragraph (7), section two, article one, chapter thirty-nine-a of the code) or oral, express or implied, embodying the terms and conditions concerning the use and occupancy of a dwelling unit and premises.
(13) "Roomer" means a person occupying a dwelling unit that lacks a major bathroom or kitchen facility, in a structure where one or more major facilities are used in common by occupants of the dwelling unit and other dwelling units. Major facility in the case of a bathroom means toilet, and either a bath or shower, and in the case of a kitchen means refrigerator, stove or sink.
(14) "Security deposit" means any refundable deposit of money that is furnished by a tenant to a landlord to secure the performance of the terms and conditions of a rental agreement, or as security for damages to the leased premises. Security deposit does not include: (A) Rent; (B) a pet fee; or (C) application fee: Provided, That the parties expressly agree, in writing, that a pet fee or application fee is nonrefundable. A security deposit does not include prepaid rent.
(15) "Sublease" means the transfer by any tenant of any but not all interests created by a rental agreement.
(16) "Tenant"