5 Critical Clauses Every Commercial Tenant Should Review Before Signing

A commercial lease isn't just a rental agreement — it's one of the largest financial commitments your business will make. A 5-year lease on a 3,000-square-foot space at $30 per square foot is a $450,000 commitment. Yet most tenants sign after a quick skim, trusting that the landlord's standard form is fair.

It usually isn't. Commercial leases are drafted by the landlord's attorneys, and they're designed to protect the landlord. That doesn't make them predatory, but it does mean the default terms almost always favor the other side of the table.

Here are the five clauses that matter most — and what to negotiate before you sign.

1. Rent Escalation Clause

What it is: The provision that determines how your rent increases over the term of the lease. Almost every commercial lease includes annual increases — the question is how they're calculated.

What to watch for:

• Fixed percentage increases (e.g., 3% per year) are predictable but compound quickly. On a $5,000/month base rent, a 3% annual increase adds over $9,400 in total extra rent over five years
• CPI-based escalations tie your increases to inflation. In low-inflation years this favors tenants; in high-inflation years (like 2022–2024), CPI adjustments can be brutal
• Market rent resets allow the landlord to adjust rent to current market rates at set intervals. This creates significant uncertainty — you could face a 15–20% jump overnight

What to negotiate: Push for fixed-percentage increases with a cap. If the landlord insists on CPI, negotiate a floor and ceiling (e.g., minimum 1%, maximum 4%). Avoid market resets if possible — or at minimum, negotiate a cap on the reset amount.

2. CAM Charges and Operating Expenses

What it is: Common Area Maintenance (CAM) charges cover the landlord's costs for maintaining shared spaces — lobbies, parking lots, landscaping, security, building insurance, and property taxes. In many leases, CAM can add 20–40% on top of your base rent.

What to watch for:

• No CAM cap: Without a cap, your CAM charges can increase without limit year over year. Landlords sometimes shift capital expenses (new roof, HVAC replacement) into CAM, creating surprise bills
• Administrative fees: Many leases allow the landlord to add a 10–15% "administrative fee" on top of actual CAM costs — pure profit that's often negotiable
• Vague definitions: If the lease doesn't clearly define what's included in CAM, you may end up paying for expenses that have nothing to do with your space

What to negotiate: Insist on a CAM cap — typically 3–5% annual increases over a defined base year. Exclude capital expenditures from CAM. Remove or reduce administrative fee percentages. Request the right to audit the landlord's CAM calculations annually.

3. Personal Guarantee

What it is: A clause requiring the business owner (you, personally) to guarantee the full lease obligation. If your business closes or can't pay rent, the landlord can come after your personal assets — your savings, your home, your car.

What to watch for:

• Unlimited personal guarantees mean you're personally liable for the entire remaining lease term. On a 5-year lease at $8,000/month, that's up to $480,000 in personal liability
• Guarantees that survive assignment: Even if you sell your business and assign the lease, some guarantees keep you personally liable for the new tenant's obligations

What to negotiate: If you can't eliminate the personal guarantee entirely, negotiate a "burning" or "good-guy" guarantee that decreases over time. For example: full guarantee in year one, reducing by 20% each year. Or cap the guarantee at a fixed dollar amount (e.g., 12 months' rent). Always ensure the guarantee terminates upon valid assignment or sublease.

4. Assignment and Subletting Rights

What it is: This clause governs whether you can transfer your lease to another party (assignment) or rent out part of your space to someone else (subletting). If your business needs change — you grow, shrink, relocate, or close — these rights determine your exit options.

What to watch for:

• Landlord can "unreasonably" withhold consent: Look for language that says consent "shall not be unreasonably withheld." Without this, the landlord can block any transfer for any reason
• Recapture clauses: Some leases give the landlord the right to take back the space instead of allowing a sublet — effectively making subletting impossible
• Profit-sharing on sublets: If you sublet at a higher rate than you're paying, some leases require you to share the profit with the landlord (often 50/50)

What to negotiate: Ensure consent cannot be unreasonably withheld. Remove or limit recapture rights. If profit-sharing is required, negotiate to first deduct your subleasing costs (broker fees, legal fees, buildout costs) before any split.

5. Default and Early Termination

What it is: The default clause defines what counts as a breach of the lease and what happens when one occurs. The early termination clause (if one exists) defines your ability to exit the lease before the term ends.

What to watch for:

• Short cure periods: Some leases give you as little as 5 days to cure a monetary default (late rent). If you miss that window, the landlord can begin eviction proceedings. Negotiate for at least 10–15 days for monetary defaults and 30 days for non-monetary defaults
• Acceleration clauses: These allow the landlord to demand the entire remaining rent for the lease term immediately upon default. On a lease with 3 years remaining at $6,000/month, that's a $216,000 bill
• No early termination right: Most standard commercial leases don't include early termination options. If the lease doesn't have one, you're locked in for the full term with no way out except paying a negotiated buyout

What to negotiate: Add an early termination clause with a reasonable penalty (typically 3–6 months' rent plus unamortized tenant improvement costs). Extend cure periods to reasonable windows. Remove or limit acceleration clauses — instead, negotiate for the landlord's damages to be limited to rent owed until the space is re-leased (a "duty to mitigate").

Before You Sign

These five clauses represent the areas where commercial tenants most commonly lose money, flexibility, or both. Before you sign any commercial lease:

1. Read the entire lease — not just the summary term sheet. Critical details are often buried in exhibits and riders
2. Calculate total occupancy cost — base rent + escalations + CAM + insurance over the full term
3. Negotiate everything — landlords expect tenants to negotiate. A "standard" lease is just a starting point
4. Get a CRE attorney — for leases over $100,000 in total value, an attorney review ($1,500–$3,000) pays for itself many times over
5. Use technology — AI-powered lease review tools can identify problematic clauses in seconds, giving you a head start before you engage an attorney

The best time to protect your business is before you sign. Every clause that's unfavorable to you was negotiable — you just have to ask.