Lease Administration for an NYC Office Tenant: Who Is Responsible After Signing
Lease administration is the running of an office lease after it is signed: keeping the dates, sending the notices the lease requires, and checking every bill against what the document says. In commercial real estate that job belongs to the tenant, not to the broker, the attorney or the landlord. The broker's responsibilities sit at either end. A broker negotiates the lease before signing, and comes back 12 to 18 months before it expires to test the market and negotiate the renewal or the move. In between, someone inside your company has to own the calendar.
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Ask about my renewalUpdated 2026-10-03 · Nomad Group
The tenant's part: dates, notices and bills
Three duties stay with the company for the whole term, whichever broker and attorney negotiated the lease.
- The dates. Rent commencement, each escalation, the window to use a renewal or termination option, the expiry of a letter of credit, and the end of the term.
- The notices. An option is exercised in writing, sent to the address and by the method the lease names. A notice that goes out late, or to the wrong place, can lose the right.
- The bills. Base rent, escalations and the yearly operating expense statement should each be checked against the lease before they are paid.
A one-page summary of the lease, called an abstract, holds all of this in one place.
Where the broker's responsibilities begin and end
A commercial real estate broker is paid on a transaction, and the work follows that. Before signing, the broker negotiates the economics: the rent, the length of the lease, free months, construction money, security and the options. Those terms decide what there will be to administer later.
After move-in the broker has no daily role in the lease. The role returns as expiry approaches. Twelve to eighteen months out, a market check, a few tours and a real alternative give a tenant something to negotiate with, and renew or relocate explains why that head start matters. On your search, we work for you, and our brokerage page lays out each stage of that work.
The attorney, the landlord's manager and the facilities team
- The attorney reads the lease document, and should be the one to confirm what a clause requires, how a notice must be sent and what to do in a dispute.
- The landlord's property manager works for the owner. That office runs the lobby, the elevators and the base building systems, collects the rent and enforces the building's rules. It sends the bills. It does not check them for you.
- A facilities team works for the tenant inside its own space: cleaning, repairs, maintenance and vendors. Facilities management keeps the office running, which is a different job from keeping the lease.
Lease administration is none of these. It is the paperwork side of occupancy, and it draws on all three.
What one missed date costs
Two dates carry most of the risk. Miss the renewal option window and in most cases the option lapses. You can still ask to renew, but as a tenant with an expiry coming and no right to stay on agreed terms. Remain in the space after the lease ends with no signed extension and you are in holdover, billed under many New York leases at one and a half to two times the last rent.
Smaller misses cost money more quietly. The right to audit an operating expense statement usually expires, sometimes within a year of the statement arriving, so a bill nobody reviewed becomes a bill nobody can contest.
The full guide
This page is the short answer. The long one, with the numbers worked through, is here:
Related topics
- Commercial Lease Administration: The One-Page Abstract and the Critical Dates
- Commercial Lease Security Deposit in NYC: Cash or a Letter of Credit
- Tenant Improvements in a Leased NYC Office: Your Rights and Responsibilities
- Leasehold Improvements in an NYC Office: Definition and Examples
Does a broker keep track of lease dates after the tenant moves in?
Not as a rule. A broker's work follows the transaction: it is heaviest before the lease is signed and returns when a renewal or a move is in view. Ask your broker or attorney for a lease abstract at signing, while the deal is fresh, and put its dates on a calendar that someone at your company owns.
Is lease administration the same as property management?
No. Property management is the landlord's side: running the building and collecting rent. Lease administration is the tenant's side: knowing what the lease requires and when. The two meet at the monthly bill and at any repair the landlord owes you.
When should we bring the broker back before the lease expires?
Twelve to eighteen months before expiry. That leaves time to tour real alternatives and still relocate if the search wins, since a move with a custom buildout takes four to six months. Inside six months the landlord knows you cannot easily leave, and the renewal is priced that way.
Who inside a small company should own the lease calendar?
One named person, with a backup. What matters is that reminders are set well ahead of each window, and that the abstract and the lease are kept where the next person can find them.
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