Usually this means that the landlord can enter the apartment, without notice and whether or not the tenant is present, in order to fix something which the tenant has requested, to respond to an emergency, or to show the apartment to prospective tenants. Any limits on the time of day, purpose, or notice will be specified here. Leases that allow landlord access for any reason and at any time of the day or night should be questioned. Failure to allow the landlord access could be grounds for the landlord to take legal action if the lease specifies access. Tenants are entitled to the right of quiet possession but elements of that right can be abridged by lease.
Renewal is the term for extending the current lease agreement for another period of time.
Usually, a one year lease renews for another year and a six months lease for another six months although some leases will renew on a month to month basis after the initial lease term. In the University area, many landlords now require the tenant to renew their lease as much as 5 months or 150 days before the end of the lease. This permits them to advertise vacancies for the next academic year prior to the end of the spring term. This is a good move for the landlord, but it could be awkward for the student who isn't sure about staying in the apartment another year or even returning to school the next year. A very early renewal deadline also means that the spring semester can be a series of landlord visits with prospective renters touring your humble abode.