- Lessor
- The property owner or authorized agent who grants the right to occupy the apartment in exchange for rent — also called the landlord.
- Lessee
- The individual or individuals who pay rent and occupy the apartment under the terms of the lease — also called the tenant.
- Security Deposit
- A sum of money held by the landlord to cover unpaid rent, damage beyond normal wear and tear, or lease violations, typically returned within a specified number of days after move-out.
- Habitable Condition
- A legal standard requiring the landlord to maintain the unit in a condition fit for human occupation — functioning heat, plumbing, structural integrity, and freedom from pest infestation.
- Normal Wear and Tear
- Minor deterioration from ordinary everyday use — scuff marks, small nail holes, faded paint — which cannot be charged against the tenant's security deposit.
- Holdover Tenant
- A tenant who remains in possession of the unit after the lease term expires without signing a renewal — typically converted to a month-to-month tenancy at the landlord's discretion.
- Notice to Quit
- A formal written notice from the landlord requiring the tenant to vacate the premises within a specified period, often the first step in the eviction process.
- Subletting
- An arrangement where the original tenant rents all or part of the apartment to a third party, usually requiring the landlord's prior written consent.
- Rent Escalation Clause
- A lease provision that allows the landlord to increase rent by a fixed amount or percentage at specified intervals, typically annually upon renewal.
- Joint and Several Liability
- A legal concept in co-tenant arrangements where each tenant is individually responsible for the full rent amount — the landlord can pursue any one tenant for the entire balance.
- Constructive Eviction
- When a landlord's failure to maintain habitable conditions effectively forces a tenant to vacate — courts may treat this as an eviction even without formal proceedings.
- Quiet Enjoyment
- A tenant's right to occupy the unit without unreasonable interference from the landlord, including unlawful entry or harassment.