
In the world of commercial real estate leasing, especially in Fairfield County, Connecticut and Westchester County, New York, understanding what constitutes a lease default is essential for tenants. While most businesses don’t plan to breach their lease, certain events—some seemingly harmless—can trigger default clauses if not properly addressed in the lease agreement.
From financial distress to subleasing and vacating space, tenants must ensure their lease terms are clear, fair, and allow for reasonable resolution. Here’s what you need to know to protect your business and avoid costly surprises.
What Constitutes a Lease Default?
At Choyce Peterson, we strongly recommend tenants use a real estate attorney to advise and negotiate lease language such as the below clauses. A lease default occurs when a tenant fails to meet one or more obligations outlined in the lease. Common defaults include:
- Failure to pay rent
- Violation of use clauses
- Unauthorized alterations
- Abandonment of space
- Failure to maintain insurance or comply with building rules
However, not all defaults are created equal. For example, if your company moves to a larger suite next door and subleases your old space, that shouldn’t be considered abandonment—as long as you continue to pay rent. Your lease should clearly define what constitutes abandonment and protect you from being penalized for strategic business decisions.
Notice and Cure Periods: Your Right to Fix Issues
Tenants should negotiate a notice and cure period in the lease. This gives you time to correct any infractions before the landlord can take legal action or reclaim the space.
- Monetary defaults (e.g., missed rent): 10-day notice
- Non-monetary defaults (e.g., breach of other obligations): 30-day notice
- Extended cure period: If you’re actively working to resolve the issue, the lease should allow for a reasonable extension
This clause is critical. It ensures that minor oversights don’t escalate into major legal disputes and gives tenants a fair chance to stay in compliance.
Landlord Remedies: What Happens After a Legitimate Default
If a tenant fails to cure a default, the landlord may:
- Re-enter and re-let the space
- Charge the tenant for lost rent and re-letting costs
- Seek damages through legal action
However, your lease should prohibit the landlord from offering deep discounts to new tenants and passing the difference on to you. This protects you from inflated damage claims and ensures fairness in the re-letting process.
In Connecticut, landlords have a duty to mitigate damages if they terminate the lease. This means they must make reasonable efforts to re-let the space—such as advertising, hiring brokers, and showing the property. Courts will not award full damages unless the landlord demonstrates these efforts.
In New York, commercial leases often include detailed default clauses. While landlords have broad rights, tenants can negotiate protections such as notice periods, cure rights, and limits on damages.
Acceleration Clauses: Paying for the Future
Some leases include an acceleration clause, which allows the landlord to demand all future rent payments immediately if a default occurs. This can be financially devastating for tenants.
To protect yourself:
- Negotiate a discount factor (interest rate) to calculate the present value of future rent
- Ensure the clause is enforceable under state law
- Request that acceleration only applies after failure to cure a default
In Connecticut, courts are cautious about awarding full rent for long-term leases unless the landlord proves they’ve tried to re-let the space. In New York, acceleration clauses are enforceable but must be drafted carefully to avoid legal challenges.
Final Thoughts
Lease defaults are more than just legal jargon—they’re real risks that can impact your business’s financial health and operational flexibility. By negotiating clear definitions, fair notice periods, and reasonable remedies, tenants can protect themselves from unexpected liabilities.
At Choyce Peterson, we represent tenants across Fairfield County and Westchester County and negotiate favorable lease and business terms with confidence. From default clauses to rent acceleration, your real estate attorney can include lease language that reflects your business needs and protects your long-term interests.


