Summary. A commercial lease is usually the largest fixed obligation a small business signs and the one it understands least. It is not governed by the consumer protections that apply to apartments, the landlord's form is written entirely for the landlord, and the terms that determine affordability are rarely the rent number everyone negotiates. This article covers the letter of intent and why the real negotiation happens there; gross versus net structures and how CAM charges become uncapped exposure; the rentable-versus-usable measurement that silently raises effective rent; and the personal guaranty that turns a corporate obligation into a family one. It then works through use and exclusivity, assignment and subletting, tenant improvement allowances, repair allocation, casualty, holdover, and the subordination and estoppel provisions tenants sign unread. It closes with a negotiation priority list, a diligence checklist, a worked example, an FAQ, and related reading.

A restaurant signs a five-year lease at "$32 a foot" for 2,400 feet. The owner budgets $76,800 a year.

The actual first-year cost is $109,000. The space is measured as 2,400 rentable feet but is 2,050 usable. The lease is triple net, so real estate taxes, insurance, and common area maintenance add about $9 a foot. CAM includes a fifteen percent administrative fee and the landlord's capital repairs amortized over their useful life. Rent escalates three percent annually, compounding. And the owner personally guaranteed the whole term, so the exposure is roughly $580,000 of personal liability signed on a Tuesday afternoon.

None of that was hidden. All of it was in the lease. The tenant read the rent number and skimmed the rest.

The short answer

Commercial leases are not consumer contracts. The implied warranty of habitability, the covenant of quiet enjoyment as tenants understand it, statutory security deposit limits, and mandatory notice periods that protect residential tenants mostly do not apply. Courts assume commercial parties bargained at arm's length, and they enforce what the document says. A minority of jurisdictions imply a warranty of suitability for commercial space — Texas is the leading example, Davidow v. Inwood North Professional Group, 747 S.W.2d 373 (Tex. 1988) — but most do not.

The eight terms that decide whether the deal works, in order of how often they are neglected:

  1. The personal guaranty and its scope.
  2. Total occupancy cost, not base rent: the expense structure, the CAM definition, and the escalations.
  3. Rentable versus usable square footage and the load factor.
  4. Assignment and subletting, which determine whether the business can be sold or moved.
  5. The use clause and exclusivity.
  6. Renewal options and how the renewal rent is set.
  7. Repair and maintenance allocation, especially HVAC and structure.
  8. Holdover rent, which is often 150 to 200 percent of the last rent.

Part I: Before the lease — the letter of intent

Most tenants think negotiation begins when the lease draft arrives. By then, most of it is over.

The letter of intent or term sheet is where the economic and structural terms get set. It is usually non-binding as to the lease itself, but landlords treat agreed LOI points as settled, and reopening them in the lease draft costs goodwill and leverage. Negotiate the LOI as though it were binding on everything except the obligation to proceed.

Put these in the LOI, not just the rent:

  • Base rent and escalations, stated as a schedule.
  • The expense structure (gross, modified gross, net) and any base year or expense stop.
  • CAM exclusions and caps in principle.
  • Measurement standard and the rentable square footage, ideally with a right to verify.
  • Tenant improvement allowance, who performs the work, and who owns it at the end.
  • Free rent or abatement period.
  • Guaranty: whether one is required, and its limits.
  • Assignment and subletting principles.
  • Renewal options and the rent mechanism.
  • Exclusive use, if the business depends on it.
  • Delivery condition and date, and remedies for late delivery.
  • Who pays for broker commissions (ordinarily the landlord).

Make the LOI expressly non-binding except for confidentiality and any exclusivity/no-shop period, and say that no obligation arises until a mutually executed lease. Otherwise a detailed LOI can be argued to be an enforceable agreement.

Part II: The money

Rent structures

Gross (full service). One number covering rent, taxes, insurance, utilities, and maintenance. Simplest and rarest for small commercial space outside office buildings.

Modified gross. Base rent includes some expenses; tenant pays others. The variations are endless, so read the definition rather than the label.

Net leases. Tenant pays base rent plus some or all of:

  • N (single net): property taxes.
  • NN (double net): taxes and insurance.
  • NNN (triple net): taxes, insurance, and common area maintenance.
  • Absolute net / bondable: everything, including roof and structure, with no landlord obligations at all. Common in single-tenant freestanding buildings.

The key question is not the label but "what is the total dollars per square foot per year, and what can go up?" Ask the landlord for the last three years of actual expenses per square foot. A landlord who will not provide them is telling you something.

Base year and expense stops

In office leases, tenants often pay their proportionate share of expense increases over a base year.

Two traps:

  • A base year in a partially occupied building. If the building is 60 percent occupied in the base year, base-year expenses are artificially low, and the tenant pays for increases that are really just occupancy filling up. Insist on a gross-up provision stating that variable expenses are grossed up to 95 or 100 percent occupancy for both the base year and each comparison year.
  • A base year that resets on renewal. Confirm whether renewal resets the base year, because it materially changes renewal economics.

CAM: where the money leaks

Common area maintenance is the single most negotiated economic term after rent, and small tenants rarely negotiate it at all.

Exclusions to request:

  • Capital expenditures, except those required by law enacted after the lease date or those that demonstrably reduce operating costs — and then only amortized over useful life with interest at a reasonable rate, with the tenant paying only the amortized portion during the term.
  • Roof and structural repairs and replacement.
  • Landlord's costs of leasing: commissions, marketing, tenant improvements, and legal fees for other tenants.
  • Costs reimbursed by insurance, warranty, or another tenant.
  • Costs attributable to other buildings in a multi-building project unless properly allocated.
  • Landlord's overhead, executive salaries, and home office costs.
  • Fines and penalties from landlord's violations.
  • Costs of correcting defects in original construction or of environmental remediation.
  • Ground rent, debt service, and depreciation.
  • The administrative fee, or at least a cap on it (three to five percent of actual costs, not of gross rent, and computed on costs net of exclusions).

Caps to request: a cap on controllable CAM increases (commonly three to five percent annually, cumulative rather than compounding), excluding taxes, insurance, utilities, and snow removal, which landlords will not cap.

Audit rights: the right, on reasonable notice, to audit the landlord's books for the prior one or two years, with the landlord paying audit costs if the overstatement exceeds a threshold (three to five percent) and with prompt refund of overcharges.

Rentable versus usable, and the load factor

You occupy usable square feet. You pay for rentable square feet, which adds a share of lobbies, corridors, restrooms, and mechanical rooms. The ratio is the load factor or common area factor, typically 10 to 20 percent in office buildings and sometimes far higher.

What to do: ask which measurement standard applies (BOMA has several, and they produce different numbers); ask for the load factor in writing; and, in a larger deal, reserve the right to have the space measured, with rent adjusted if it differs by more than a stated percentage. Compare buildings on usable feet and total annual cost, not on the quoted rate per rentable foot, because the quoted rate is not comparable across buildings.

Escalations

A "three percent annual increase" compounding over ten years raises rent about 30 percent. Alternatives worth proposing: fixed dollar increases, increases tied to CPI with a cap, or increases every other year. Ask for the rent schedule as a table in the lease so there is no arithmetic dispute later.

Part III: The personal guaranty

For a small business, this is the most consequential clause in the document, and it is frequently signed without advice.

What it does. It makes the individual personally liable for the tenant's obligations. If the business fails, the landlord can pursue the guarantor's house, savings, and wages. Forming an LLC does not help, because the guaranty is a separate personal promise. See Piercing the Corporate Veil.

What to negotiate, in order of preference:

  1. No guaranty. Offer a larger security deposit or a letter of credit instead. Landlords will often trade.
  2. A "good guy" guaranty. The market compromise, common in New York and increasingly elsewhere: the guarantor is liable only for amounts accrued through the date the tenant surrenders the premises in the required condition, with defined advance notice (usually 90 to 180 days) and all rent current. It guarantees an orderly exit rather than the full term. This is the single most valuable ask a small tenant can make.
  3. A capped guaranty. Limited to a fixed dollar amount or a number of months' rent.
  4. A burn-down guaranty. The cap decreases over time, or terminates entirely after a defined period of on-time payment.
  5. Limits on scope. Exclude consequential damages, cap attorney's fees, and require the landlord to mitigate before pursuing the guarantor.
  6. Release on assignment. If the lease is assigned with landlord consent, the original guarantor is released.
  7. Notice. Require that the guarantor receive copies of default notices, so the guarantor can cure.
  8. Spousal signature. Avoid it. In community property states a spouse's signature dramatically expands the reachable assets.

Read the guaranty as a separate document, because it usually is one, and check whether it waives defenses (it will), whether it survives lease amendments made without the guarantor's consent (it should not), and whether it is a guaranty of payment (the landlord can come straight at you) or of collection (the landlord must exhaust the tenant first).

Part IV: The operational clauses

Use and exclusivity

The use clause defines what the tenant may do. Landlords draft it narrowly ("solely for a retail bakery") to preserve control; that narrowness becomes a problem when the business evolves or when the tenant wants to assign to someone in an adjacent business.

Negotiate the broadest defensible formulation: "for a bakery, café, and related food and beverage service, and any other lawful retail use consistent with a first-class shopping center."

Exclusive use protects the tenant from the landlord leasing to a direct competitor in the same project. If the business depends on being the only one of its kind, this is essential, and it must be:

  • Specific about the protected use;
  • Enforceable through a real remedy (rent abatement, self-help injunction rights, termination), not just a promise;
  • Carved for existing tenants and their renewals, which the landlord will insist on; and
  • Binding on successors and recorded or referenced in a memorandum of lease where permitted.

Check the flip side: prohibited use and exclusive clauses granted to other tenants, which may restrict what you can sell. Ask for a copy of all existing exclusives affecting the project.

Assignment and subletting

The clause that determines whether the business is sellable.

Landlord forms typically prohibit assignment or subletting without consent, which the landlord may withhold in its sole discretion, and define a change of control of the tenant entity as an assignment.

Negotiate:

  • Consent not to be unreasonably withheld, conditioned, or delayed, with a deemed consent if the landlord does not respond within a stated period (ten to fifteen business days).
  • Objective standards for reasonableness: financial capacity comparable to the tenant, comparable use, and no conflict with an existing exclusive.
  • A permitted transfer carve-out requiring no consent for transfers to affiliates, to a successor by merger, or in connection with the sale of substantially all assets or equity of the business. Without this, you cannot sell your business without your landlord's permission, and the landlord knows exactly how much that permission is worth at closing.
  • Deletion or limitation of recapture rights (the landlord's option to take the space back instead of consenting), which effectively kills any assignment.
  • Profit sharing limited to net profit after the tenant recovers its costs (improvements, brokerage, downtime), and split rather than paid entirely to the landlord.
  • Release of the original tenant on a permitted assignment, or at least on an assignment to a creditworthy assignee.

Tenant improvements

The allowance. Usually stated in dollars per rentable square foot. Confirm:

  • What it covers (hard construction costs only, or also architectural, permitting, cabling, and furniture — "soft costs" are frequently excluded).
  • Who performs the work. Landlord-built ("turnkey") shifts cost overrun risk to the landlord; tenant-built gives control but exposes the tenant to overruns and to the landlord's construction management fee (negotiate it down; three to five percent of hard costs is typical, and it is often charged on the allowance the landlord is already paying).
  • How and when it is disbursed. Progress payments or on completion; lien waivers required.
  • What happens to unused allowance — ideally applied to rent rather than forfeited.
  • Delivery condition: what the landlord delivers ("warm shell," "cold dark shell," "vanilla box"), which should be defined precisely in an exhibit, not described adjectivally.

Restoration at the end. The trap. Many leases require the tenant to remove alterations and restore the premises to original condition at expiration, at the tenant's cost. For a build-out with specialized infrastructure, restoration can cost more than a year's rent.

Negotiate: no restoration obligation for the initial build-out approved by the landlord; for later alterations, a requirement that the landlord specify at the time of consent whether removal will be required; and no obligation to remove ordinary cabling, standard partitions, or improvements the landlord will reuse.

Repairs, maintenance, and the HVAC problem

The most expensive surprise for small tenants after CAM.

Landlord forms commonly make the tenant responsible for all systems "serving the premises," which in a retail or industrial space means the HVAC unit on the roof. A replacement is a five-figure capital expense on a unit the tenant did not choose and whose age it does not know.

Negotiate, in descending order of preference:

  1. Landlord responsible for replacement of HVAC, roof, structure, and building systems; tenant responsible for routine maintenance and repair.
  2. Tenant responsible for maintenance under a service contract, with landlord responsible for replacement if the unit fails and cannot be economically repaired.
  3. A cap on the tenant's annual repair obligation (for example, tenant pays the first $1,500 per year per unit; landlord pays above that).
  4. If the tenant must bear replacement, require the landlord to warrant the age and condition at delivery, deliver a recent inspection report, and assign any remaining manufacturer warranty.

Always confirm who is responsible for the roof, foundation, exterior walls, and structural components. In anything short of an absolute net single-tenant lease, those should be the landlord's.

ADA and code compliance

Allocate responsibility for compliance explicitly. The usual and defensible split: landlord for common areas and for the base building as delivered; tenant for its own alterations and for compliance obligations arising from its specific use.

Note that Title III liability can attach to both landlord and tenant regardless of the lease, and that the lease allocates the cost between them rather than eliminating exposure to a plaintiff. See Website and Mobile App Accessibility Under the ADA for the analogous digital obligations.

Casualty and condemnation

  • Rent abatement should begin immediately and in proportion to the untenantable area, without a waiting period.
  • Termination rights should be mutual: if the landlord may terminate rather than rebuild, the tenant should be able to terminate if restoration will take longer than a stated period (commonly 180 to 270 days), and should have a right to terminate if restoration is not actually completed by an outside date.
  • Casualty in the last months of the term commonly gives the landlord a termination right; make it mutual.
  • Condemnation awards belong to the landlord for the real estate, but the tenant should preserve its right to a separate award for its trade fixtures, moving costs, and business interruption where state law permits.

Holdover

If the tenant stays past expiration, holdover rent is typically 150 to 200 percent of the last month's rent, and many leases add liability for the landlord's consequential damages if the holdover costs the landlord a replacement tenant.

Negotiate: holdover at 125 to 150 percent, a defined grace period, month-to-month rather than a new term, and deletion of consequential damages unless the tenant holds over beyond a stated period after written notice. The consequential damages exposure is the dangerous part and is easy to remove early.

SNDA and estoppel certificates

Two documents tenants sign without reading.

Subordination, non-disturbance, and attornment. Leases subordinate the tenant's interest to the landlord's mortgage, which means a foreclosure could terminate the lease. The protection is the non-disturbance agreement: the lender agrees that so long as the tenant is not in default, its possession will not be disturbed by foreclosure. Insist that subordination be conditioned on delivery of an SNDA from any current and future lender. A subordination clause without non-disturbance is a promise that your lease can be extinguished by someone you never met.

Estoppel certificates. The lease will require the tenant to certify facts about the lease to lenders and purchasers on short notice. Agree, but: cap the response time at ten business days, require the landlord to provide a draft, limit certifications to matters within the tenant's actual knowledge, and expressly permit the tenant to note exceptions. Never sign one certifying "no defaults by landlord" if there are outstanding issues; the certificate estops you from raising them.

Renewal options and other rights

  • Renewal option: specify the notice window (and calendar it the day you sign), and specify the rent mechanism. "Fair market rent" without a definition and an appraisal procedure is an invitation to a dispute. Better: a fixed rate, a fixed escalation, or FMR with a defined appraisal process and a floor and ceiling.
  • Right of first refusal / first offer on adjacent space, if expansion is plausible.
  • Termination option at a defined point with a fee (typically unamortized TI, commission, and free rent, plus a few months' rent). Expensive to buy but occasionally decisive.
  • Signage, parking, and access rights, which are business-critical for retail and are frequently omitted.
  • Co-tenancy provisions for retail in a shopping center: rent reduction or termination if an anchor closes or occupancy falls below a threshold.

Default, remedies, and what happens when it goes wrong

Tenant default. Landlord forms define default broadly: non-payment, breach of any covenant, insolvency, abandonment, and often a cross-default to any other agreement with the landlord.

Negotiate notice and cure: written notice and at least five business days to cure a monetary default, and thirty days for non-monetary defaults, extended if the cure cannot reasonably be completed in thirty days and the tenant is diligently pursuing it. Landlord forms frequently give three days or no notice at all for monetary defaults, and limit the number of notices per year before the right to cure disappears. Also request that notices go to the tenant's counsel as well as the tenant, because a default notice sent to a shuttered address is still effective.

Landlord remedies typically include termination of the lease, termination of possession without terminating the lease (so rent keeps accruing), acceleration of the remaining rent, self-help, and recovery of all costs including attorney's fees. Ask for:

  • Mitigation. Most states require a landlord to make reasonable efforts to relet, but some do not, and some permit waiver. Insert an express mitigation obligation.
  • Limits on acceleration, or at least a present-value discount and a credit for amounts actually received on reletting.
  • Reciprocal attorney's fees. Landlord forms award fees to the landlord only; many states make one-sided fee clauses reciprocal by statute, but not all, and it is a cheap ask.

Landlord default. Landlord forms often have no default provision for the landlord at all. Add one: notice and a reasonable cure period, and a self-help right permitting the tenant to perform the landlord's obligation and offset the cost against rent, capped at a stated amount per occurrence and per year. Without offset, a tenant's only remedy for a landlord's failure to repair is a lawsuit it cannot afford.

Bankruptcy. If the tenant files, § 365 of the Bankruptcy Code governs. The debtor may assume or reject the lease, must cure defaults and provide adequate assurance to assume, and may assign an assumed lease notwithstanding anti-assignment clauses, § 365(f). A landlord's damages claim on rejection is capped by § 502(b)(6) at the greater of one year or fifteen percent (not to exceed three years) of the remaining term. If the landlord files, § 365(h) protects the tenant: on rejection, the tenant may treat the lease as terminated or may retain its rights for the balance of the term, including renewal options, and may offset damages against rent. See Intellectual Property Licenses in Bankruptcy for the analogous licensing framework.

Part V: Due diligence before signing

  • Verify the landlord owns the property and confirm the entity name matches the signature block.
  • Check zoning permits your use, and confirm any required conditional use permit is obtainable.
  • Confirm certificate of occupancy and whether your build-out requires a new one.
  • Inspect the premises with a contractor: HVAC age and condition, electrical capacity, plumbing, ADA path of travel, roof condition.
  • Ask for three years of actual CAM/operating expense statements.
  • Ask for existing exclusives and use restrictions affecting the project.
  • Ask about pending or planned construction, redevelopment, or anchor departures.
  • Check for environmental issues if the use or history warrants (Phase I).
  • Confirm parking counts and whether they are exclusive or shared.
  • Verify insurance requirements are obtainable at the quoted premium; landlord forms sometimes require limits that are expensive or unavailable for small tenants. See Business Insurance and Coverage Disputes.
  • Model total occupancy cost for every year of the term, including escalations and estimated expense growth.

A worked example

Alder & Ash Bakery (fictional) is leasing 2,400 rentable square feet in a strip center. The landlord's LOI: $32/RSF NNN, five years, 3 percent annual escalation, $30/RSF TI allowance, personal guaranty for the full term, five months to build out with rent commencing on delivery.

What Alder & Ash should push, in priority order:

  1. Guaranty → good guy. Liability through surrender with 120 days' notice and all rent current, released on a permitted assignment. This is the single largest risk reduction available and landlords trade it regularly.
  2. CAM cap and exclusions. Exclude capital items except as amortized, exclude roof and structure, exclude leasing costs, cap the admin fee at four percent of actual net costs, cap controllable CAM growth at four percent cumulative, and add an audit right.
  3. HVAC. The rooftop unit is fourteen years old. Ask the landlord to replace it before delivery, or to warrant it for the term with replacement at landlord's cost. Get the age in writing either way.
  4. Rent commencement. Not on delivery — on the earlier of opening for business or 120 days after delivery of the premises in the required condition, with the outside date extended for landlord delay. Five months of rent during construction is real money.
  5. Assignment. Permitted transfer carve-out for a sale of the business, consent not unreasonably withheld with a deemed-consent period, no recapture.
  6. Restoration. No obligation to remove the initial build-out; landlord to designate removal requirements at the time it consents to any later alteration.
  7. Exclusive use for a bakery and café within the center, carved for existing tenants.
  8. Holdover at 150 percent with no consequential damages for the first sixty days.
  9. SNDA from the existing lender delivered at signing.
  10. Renewal option: one five-year option at a fixed 3 percent escalation, notice window nine to twelve months before expiration.

What Alder & Ash should expect to concede: the base rent (landlords hold on rate more than on terms), the insurance requirements, the standard default and remedies structure, and the landlord's rules and regulations.

The economics, modeled honestly: base rent year one $76,800; estimated NNN at $9/RSF adds $21,600; total $98,400, escalating to roughly $118,000 by year five if CAM grows at four percent. Over five years, about $540,000. That is the number to test against the business plan — not $32 a foot.

Frequently asked questions

Is a commercial lease negotiable? Almost always, more than tenants assume, and most in the LOI stage. Landlords protect the rate (because it affects the building's valuation) and trade terms. Ask for terms.

Do I need a broker? A tenant representative broker is usually paid by the landlord out of the transaction and provides market comparables, load factor data, and negotiating leverage. For most small businesses the answer is yes, and it costs nothing directly.

What is a triple net lease? The tenant pays base rent plus taxes, insurance, and common area maintenance. The label matters less than the definitions; read what is actually included and what is capped.

Should I sign a personal guaranty? Avoid it if you can, and if you cannot, convert it to a good guy guaranty, a capped guaranty, or a burn-down. Never sign one without understanding the total dollar exposure over the full term.

What is the difference between rentable and usable square feet? Usable is what you occupy; rentable adds a share of common areas. You pay on rentable. Compare buildings on total annual cost per usable foot.

Can my landlord raise CAM without limit? Under most landlord forms, effectively yes. Caps and exclusions must be negotiated, and audit rights are the enforcement mechanism.

Who pays to replace the HVAC? Whoever the lease says. In small commercial spaces, landlord forms routinely put it on the tenant. Negotiate it, and at minimum get the unit's age and condition documented before signing.

Can I get out early? Only if the lease says so. Options: a negotiated termination right with a fee, an assignment or sublease (if the clause permits), or a negotiated buyout. Absent those, the tenant remains liable, though most states require the landlord to mitigate damages by attempting to relet — a rule that varies and is sometimes waivable.

What happens if the building is sold or foreclosed? The lease generally survives a sale. Foreclosure is different: if the lease is subordinate to the mortgage without a non-disturbance agreement, it can be terminated. Get an SNDA.

Should a lawyer review it? For a multi-year obligation of hundreds of thousands of dollars with a personal guaranty attached, the review cost is a fraction of one month's rent. Review the LOI too, which is where the leverage is.

Closing thought

The asymmetry in commercial leasing is not really about sophistication. It is about repetition. The landlord's form has been refined over hundreds of deals; the tenant is signing its first or second lease and is negotiating against a document designed by people who have seen every argument.

The response is not to become a leasing lawyer. It is to know which eight terms carry the risk, to raise them in the letter of intent where they are cheapest to change, and to price the deal on total occupancy cost over the full term rather than on the headline rate.

And to treat the personal guaranty as what it is: a decision to put personal assets behind a business obligation for five or ten years, made in a document that runs two pages and is usually handed over last.

Related articles

This article is provided for general informational purposes and does not constitute legal advice. Commercial leasing is governed by state law and market practice that vary considerably. Consult qualified real estate counsel before signing a lease or guaranty.