Is a Commercial Lease a Binding Contract? (w/Examples) + FAQs

Yes, a commercial lease is a binding contract the moment both parties sign it, exchange consideration, and meet the basic elements of contract formation under U.S. common law. Once executed, it creates enforceable rights and duties for the landlord and tenant that courts will uphold, often for years, regardless of whether the business succeeds or fails. The governing framework is the Restatement (Second) of Contracts combined with each state’s Statute of Frauds, which requires most commercial leases longer than one year to be in writing. Violating a signed lease triggers immediate negative consequences, including acceleration of rent, forfeiture of security deposits, personal-guaranty liability, and money judgments that can follow a business owner for up to 20 years under most state judgment-renewal statutes.

According to the U.S. Small Business Administration, roughly 43% of small businesses lease their commercial space, and the National Federation of Independent Business reports that lease disputes rank among the top five legal issues facing small-business owners each year.

Here is what you will learn in this article:

• 📜 The five legal elements that turn a commercial lease into a binding contract and why missing any one of them can void the agreement.
• ⚖️ The exact state and federal rules — including the Statute of Frauds and 11 U.S.C. § 365 — that govern enforcement, breach, and bankruptcy treatment.
• 🏢 Real-world examples showing how tenants and landlords win or lose in court based on specific clauses.
• 🚫 The seven most common mistakes tenants make before signing that lead to six-figure judgments.
• 💡 Practical do’s, don’ts, pros, cons, and FAQs that help you negotiate, enforce, or exit a commercial lease without losing your business.

What Makes a Commercial Lease a Legally Binding Contract

A commercial lease becomes a binding contract the instant it satisfies the classic five elements of contract formation described in the Restatement (Second) of Contracts § 17. Those elements are offer, acceptance, consideration, mutual assent, and legal capacity. When a landlord presents a written lease and the tenant signs it, the landlord’s offer has been accepted. The consideration is the tenant’s promise to pay rent in exchange for the landlord’s promise to deliver possession of the premises. Mutual assent exists because both parties understand the essential terms — the space, the rent, the term length, and the permitted use. Legal capacity means both signers are adults of sound mind acting on behalf of entities authorized to contract.

The Uniform Commercial Code does not directly govern real-property leases, because the UCC covers goods and, separately, equipment leases under Article 2A. Commercial real-estate leases instead fall under state common law and specific landlord-tenant statutes. That distinction matters because tenants sometimes try to argue that consumer-protection rules apply, but courts reject that argument in commercial settings. The landmark case Javins v. First National Realty Corp. established an implied warranty of habitability for residential tenants, but commercial tenants generally take the premises “as is” unless the lease states otherwise.

A common misconception is that a lease only becomes binding after the tenant moves in or pays the first month’s rent. That is false. The contract is formed at signature, and pre-occupancy breaches — such as the tenant backing out before taking possession — still trigger damages. The consequence of walking away after signing but before moving in is often liability for the full remaining rent, minus whatever the landlord collects by re-letting the space, a duty known as mitigation of damages.

The Role of Offer and Acceptance

Offer and acceptance is the first mechanical step in creating a binding commercial lease. The landlord typically issues a written Letter of Intent (LOI) outlining key terms such as rent, term, and tenant-improvement allowance. Although most LOIs are labeled “non-binding,” courts sometimes find them binding when the language shows clear intent to be bound, as in the Texas case Fischer v. CTMI, L.L.C. The consequence of signing an LOI that does not clearly disclaim binding effect is that a tenant can be forced into lease terms it thought were still negotiable.

A mirror-image acceptance — the common-law rule requiring acceptance to exactly match the offer — still controls commercial real-estate negotiations because the UCC’s more flexible “battle of the forms” rule in UCC § 2-207 does not apply. If the tenant changes a single material term, such as the rent-escalation formula, that is a counteroffer, not an acceptance, and the landlord must agree again. A real-world example: Maria signs a lease that auto-escalates rent at 3% per year but crosses out the CPI language before returning it. The landlord must initial the change for the contract to bind; otherwise, no contract exists and either side may walk away.

A common misconception is that verbal agreements between brokers or owners bind the parties. They generally do not, because of the Statute of Frauds. The consequence of relying on a handshake is losing the space to a competing tenant who signs a written lease first.

The Role of Consideration

Consideration is the bargained-for exchange that makes a lease a contract rather than a gift. For the landlord, consideration is the promise to grant exclusive possession of the premises for the lease term. For the tenant, consideration is the promise to pay rent, taxes, insurance, maintenance, or whatever combination the lease type requires. Without consideration on both sides, courts treat the document as unenforceable.

The consequence of weak or illusory consideration is that a court can declare the lease void. For example, a lease that lets the tenant cancel at any time “for any reason” without penalty may be deemed illusory in some states because the tenant’s promise is not a real commitment. A common misconception is that “$1 and other good and valuable consideration” language is enough; in commercial leases, courts look at the substance, not the recital. A mini-scenario: James signs a five-year lease that lets him terminate with 30 days’ notice at his discretion, with no fee. A Georgia court might find James never gave real consideration and release both parties, leaving the landlord with an empty space and no damages.

The Role of Mutual Assent and Capacity

Mutual assent, often called a meeting of the minds, means both parties understand the same essential terms. Capacity means each signer has legal authority to bind the party named in the lease. In commercial leases, capacity issues arise constantly because most tenants are entities — LLCs, corporations, or partnerships — not individuals. The signer must be an authorized officer, manager, or member with proper corporate resolutions on file.

The consequence of a capacity failure is personal liability for the signer or a void contract. Under the doctrine of ultra vires, an officer who signs outside the scope of authority can be held personally responsible. A real-world example: Priya signs a 10-year lease as “Manager” of an LLC that was administratively dissolved two weeks earlier by the secretary of state for failing to file an annual report. Because the LLC did not legally exist, Priya is personally liable for every dollar of rent under most state statutes governing dissolved entities.

A common misconception is that an email signature block is not binding. It often is, under the E-SIGN Act and each state’s Uniform Electronic Transactions Act (UETA). Parties who negotiate by email can unintentionally form a binding lease if the essential terms are present and both sides show intent to be bound.

The Statute of Frauds and Written Commercial Leases

The Statute of Frauds, traced to a 1677 English statute and adopted by every U.S. state, requires certain contracts to be in writing and signed by the party to be charged. Commercial leases longer than one year fall squarely within the statute in nearly every jurisdiction. The plain-English explanation is simple: if you cannot fully perform a commercial lease within 12 months, you need a signed writing, or a court will refuse to enforce it.

The consequence of ignoring the Statute of Frauds is losing the right to sue. A landlord who relies on a verbal five-year deal cannot force a tenant to pay future rent. A tenant who relies on an oral renewal cannot force a landlord to honor it. Courts do recognize narrow exceptions, such as partial performance and promissory estoppel, but those doctrines are hard to prove and vary widely by state.

A real-world example: David, a restaurateur in Florida, verbally agreed with his landlord to extend his lease for three more years and invested $90,000 in kitchen upgrades. When the landlord leased the space to a higher bidder, David sued. A Florida court applied partial performance and awarded him reliance damages under Fla. Stat. § 725.01, but the outcome was close and the litigation cost David another $40,000 in legal fees.

A common misconception is that text messages cannot satisfy the Statute of Frauds. They can, if they contain the essential terms and show the sender intended to be bound, as several state courts have ruled under UETA.

State-by-State Writing Requirements

State rules vary on exactly what length of lease triggers the writing requirement. In New York, any lease longer than one year must be in writing and signed. In California, the same rule applies under Civil Code § 1624. Texas requires writing for leases longer than one year under Business & Commerce Code § 26.01. Illinois follows the same one-year rule under 740 ILCS 80/2.

The consequence of a writing-rule failure is different in each state. In New York, courts are strict and will dismiss a suit without hesitation. In California, courts are slightly more flexible and may consider emails, side letters, and even memos initialed by the parties. A mini-scenario: Carlos, a boutique owner in Los Angeles, has an email chain with his landlord agreeing to a two-year lease at $4,500 per month. Even without a formal lease document, a California court may enforce the email chain as a sufficient writing under Cal. Civ. Code § 1624(b)(3).

A common misconception is that recording the lease is required. Recording is optional in most states but useful for giving public notice, particularly for long-term leases with purchase options.

The Parol Evidence Rule

The parol evidence rule prevents parties from introducing prior or contemporaneous oral statements that contradict a fully integrated written lease. In plain English, once the lease is signed and contains an integration clause — often labeled “Entire Agreement” — courts ignore what the broker, the landlord, or the tenant said during negotiations.

The consequence is brutal for tenants who rely on verbal promises. If a broker said the HVAC system was new but the lease is silent, the tenant cannot sue for misrepresentation of that point once the lease is signed, unless fraud is proven. A real-world example: Aisha leased a warehouse after the landlord’s agent assured her the roof had been replaced in 2024. The lease contained a standard “as is” clause and an integration clause. When the roof leaked, the court barred her testimony about the agent’s statement, citing the parol evidence rule, and she absorbed $120,000 in repairs.

A common misconception is that fraud always overrides the parol evidence rule. It sometimes does, but only when the tenant can prove intentional misrepresentation with clear and convincing evidence, which is a high bar.

How Commercial Leases Differ From Residential Leases

Commercial and residential leases are both binding contracts, but the legal protections differ sharply. Residential tenants enjoy implied warranties, statutory notice periods, and anti-eviction protections under laws like the Uniform Residential Landlord and Tenant Act. Commercial tenants get almost none of those protections and are presumed to be sophisticated parties capable of negotiating their own terms.

The consequence of this freedom-of-contract approach is that commercial tenants bear far more risk. There is no implied warranty of habitability, no right to withhold rent for repairs, and no automatic right to a three-day cure period before eviction in most states. A common misconception is that consumer-protection statutes like state unfair-trade-practices laws apply to commercial leases. In most jurisdictions, they do not, because the tenant is considered a business, not a consumer.

Triple-Net Leases, Gross Leases, and Modified Gross

The three dominant commercial-lease structures are triple-net (NNN), gross, and modified gross. In a triple-net lease, the tenant pays base rent plus all three “nets” — property taxes, building insurance, and common-area maintenance. In a gross lease, the landlord covers those costs and charges a higher base rent. A modified gross lease splits the costs by negotiation.

The consequence of choosing the wrong structure can reshape a tenant’s budget. A tenant who signs a triple-net lease in a rising-tax jurisdiction may see effective rent climb 15% to 25% over five years without the base rent changing. A real-world example: Rebecca opens a yoga studio under a triple-net lease at $22 per square foot. Two years in, the county reassesses the property, and her share of property taxes rises by $9,000 per year. She has no right to renegotiate because the lease already binds her to pay her pro-rata share.

A common misconception is that CAM charges are fixed. They are usually variable and subject to annual reconciliation, which means tenants can receive true-up bills months after the year ends.

Common-Area Maintenance and Operating Expense Clauses

Common-area maintenance (CAM) clauses obligate the tenant to pay a share of the costs of maintaining shared spaces — parking lots, lobbies, elevators, and landscaping. Operating-expense clauses go further, sometimes including management fees, capital improvements, and reserves. Tenants often overlook these clauses because they appear deep in the lease under headings like “Additional Rent.”

The consequence of a poorly negotiated CAM clause is unlimited exposure to landlord costs. Tenants should insist on exclusions and caps, such as excluding capital improvements, insurance deductibles, and the landlord’s legal fees. A mini-scenario: Michael signs a lease in a retail center with a CAM clause that allows the landlord to include “parking-lot resurfacing” in annual operating expenses. When the lot is repaved at a cost of $400,000, Michael’s 4% pro-rata share becomes $16,000 in a single year — a cost he never anticipated.

A common misconception is that CAM charges cannot exceed the landlord’s actual costs. They can, if the lease allows administrative fees or management overhead that exceed true expenses.

Breach, Default, and Remedies Under a Commercial Lease

A breach of a commercial lease triggers remedies defined by both the lease and state law. The lease usually names specific defaults — non-payment of rent, unauthorized assignment, abandonment, or failure to maintain insurance — and specifies cure periods. State landlord-tenant statutes supply default rules when the lease is silent, but most commercial leases override state defaults with tougher terms.

The consequence of a tenant default is severe. Landlords can accelerate the entire remaining rent, draw down the security deposit, sue on the personal guaranty, and file for commercial eviction, also called an unlawful-detainer action. In some states, landlords can also lock the tenant out without going to court, a remedy called self-help that Texas permits but California forbids.

A common misconception is that a tenant who closes the business and mails the keys to the landlord escapes liability. That is almost never true. The lease continues, and rent keeps accruing until the landlord re-lets the space or the lease term ends.

Acceleration Clauses and Rent Damages

An acceleration clause lets the landlord demand the entire remaining rent immediately upon default. In plain English, if a tenant with seven years left on the lease misses two months of rent, the landlord can sue for all 84 remaining months at once. Courts generally enforce acceleration clauses in commercial leases as long as they are not deemed an unconscionable penalty.

The consequence is catastrophic for tenants. A small restaurant owner can face a judgment exceeding $500,000 in a single filing. A real-world example: Steven leased a 3,000-square-foot space for $7,500 per month with six years remaining. After missing three months of rent, the landlord accelerated and obtained a judgment for $540,000, minus an estimated re-letting value. Steven’s personal guaranty made the judgment collectible against his home and wages.

A common misconception is that landlords must wait until the lease expires to sue. They do not. They can sue immediately under the acceleration clause, provided they still attempt mitigation in states that require it.

Mitigation of Damages

Most states require landlords to mitigate damages by making reasonable efforts to re-let the premises. California codifies the rule in Civil Code § 1951.2. Texas requires mitigation under Property Code § 91.006. New York historically did not require mitigation for commercial leases but shifted with Holy Properties Ltd. v. Kenneth Cole Productions, Inc. limited to certain facts.

The consequence of a landlord’s failure to mitigate is a reduction in damages. If a landlord refuses reasonable replacement tenants, the court may cut the judgment by the rent that could have been collected. A mini-scenario: Olivia’s landlord rejects three qualified replacement tenants because he dislikes their credit profiles. A court may reduce his claimed damages by the rent those tenants would have paid, saving Olivia tens of thousands of dollars.

A common misconception is that mitigation means the landlord must accept any tenant. It does not — the landlord can reject unqualified or incompatible tenants, but must act reasonably.

Personal Guarantees and Individual Liability

Personal guarantees are the single most important risk factor in small-business commercial leases. A personal guaranty obligates the individual signer — usually the business owner — to pay the lease if the entity defaults. Landlords require them because small LLCs often have no assets, making the corporate tenant a hollow promise.

The consequence of signing a personal guaranty is that the owner’s home, savings, and wages are on the hook. Unlimited guarantees cover the full lease term. “Good-guy” guarantees, common in New York, limit liability to unpaid rent through the date the tenant vacates and returns the keys in good condition.

A real-world example: Jennifer, an LLC owner, signs a 10-year lease with an unlimited personal guaranty. Three years in, her bakery fails. The landlord sues, obtains a $380,000 judgment against Jennifer personally, and garnishes her wages for a decade. A common misconception is that forming an LLC shields the owner. It does not when a personal guaranty is signed.

Good-Guy Guarantees Explained

A good-guy guaranty is a New York innovation that has spread to other markets. It limits personal liability to rent accrued up to the date the tenant peacefully surrenders the premises. The tenant must give advance notice, leave the space broom-clean, and be current on rent through the surrender date.

The consequence of a good-guy guaranty is a cleaner exit for tenants. It also gives landlords faster recovery of the space without eviction proceedings. A mini-scenario: Brandon, a SoHo retailer, gives 90 days’ notice, pays rent through the surrender date, and hands over the keys. His personal liability ends there, even though five years remain on the lease.

A common misconception is that good-guy guarantees are automatic. They are not; they must be negotiated and drafted carefully.

Assignment, Subletting, and Lease Transfers

Assignment and subletting clauses control whether a tenant can transfer the lease to another party. Most commercial leases prohibit assignment or subletting without the landlord’s prior written consent. Some leases add that consent “shall not be unreasonably withheld,” which courts enforce as a meaningful limit on landlord discretion.

The consequence of transferring without consent is immediate default. Landlords can terminate, accelerate rent, and sue for damages. Even when consent is required to be reasonable, landlords can demand financial documentation, personal guaranties from the new tenant, and transfer fees.

A common misconception is that an asset sale of the business avoids the assignment clause. It usually does not, because most leases define a change of control as an assignment.

Recapture and Profit-Sharing Clauses

Many leases include recapture and profit-sharing provisions. A recapture clause lets the landlord take back the space instead of approving an assignment. A profit-sharing clause requires the tenant to share any rent premium — the difference between the original rent and the new rent — with the landlord.

The consequence is reduced flexibility for tenants. A tenant who negotiated below-market rent loses the upside when the market rises. A real-world example: Kevin leased a Brooklyn space at $40 per square foot. Five years later, market rent is $70 per square foot, and he wants to assign to another restaurant at $65. The profit-sharing clause gives the landlord 50% of the $25 premium, leaving Kevin with only $12.50 per square foot in profit.

A common misconception is that recapture only applies to full assignments. Many leases also allow recapture on partial subleases.

Bankruptcy and Commercial Leases

When a commercial tenant files bankruptcy, 11 U.S.C. § 365 governs the lease. The debtor-tenant has the option to assume or reject the lease, subject to court approval. Assumption requires curing all defaults and providing adequate assurance of future performance. Rejection is treated as a breach, capped at one year of rent plus unpaid pre-petition rent under § 502(b)(6).

The consequence for landlords is a capped claim, often pennies on the dollar. The consequence for tenants is the ability to walk away from a bad lease in Chapter 11 or Chapter 7. A real-world example: A national retail chain files Chapter 11 and rejects 120 leases, leaving each landlord with a capped damages claim that rarely exceeds 15% of the total contract value.

A common misconception is that the automatic stay stops everything forever. It does not; landlords can seek relief from the stay and may recover possession faster than in state court.

Three Scenarios Where a Commercial Lease Binds or Breaks

Below are three of the most common scenarios tenants and landlords face, shown in simple 2-column tables.

Three Named Examples of Binding Lease Outcomes

Here are three named examples that show how courts treat real commercial-lease disputes.

Example 1 — Maria’s Restaurant in Austin. Maria signs a 10-year triple-net lease for a 4,000-square-foot restaurant at $28 per square foot. After 18 months, she closes and mails the keys to the landlord. The landlord sues under Texas Property Code § 91.006, accelerates the rent, and obtains a $780,000 judgment. Maria’s personal guaranty makes the judgment collectible against her home.

Example 2 — David’s Boutique in Manhattan. David signs a five-year lease with a good-guy guaranty. When sales fall, he gives 90 days’ notice, pays rent through the surrender date, and returns the keys. His personal liability ends at $0 beyond the surrender date, even though three years remain on the lease.

Example 3 — Priya’s Tech Office in San Francisco. Priya’s LLC signs a seven-year lease. The LLC is administratively dissolved two weeks before signing. Under California Corporations Code § 17707.06, Priya is personally liable for the full lease because she signed on behalf of a non-existent entity.

Mistakes to Avoid Before Signing a Commercial Lease

Avoid these mistakes to prevent six- and seven-figure losses down the road.

• Signing without a lawyer reviewing the personal guaranty, which exposes your home and savings to unlimited liability.
• Ignoring the CAM and operating-expense clauses, which can add 15% to 30% to your total rent burden each year.
• Failing to negotiate a good-guy guaranty instead of an unlimited guaranty, which traps you for the full term.
• Accepting an “as is” clause without an independent inspection, which leaves you paying for repairs the landlord concealed.
• Overlooking the assignment and subletting clause, which can prevent you from selling your business or moving locations.
• Skipping the subordination, non-disturbance, and attornment (SNDA) agreement, which can result in eviction if the landlord’s lender forecloses.
• Missing the renewal-option notice deadline, which can cost you your below-market rent and force you to sign a new lease at market rates.
• Letting the landlord include capital improvements in CAM without a cap or exclusion.
• Failing to confirm zoning and permitted-use language, which can block your business from operating even after you sign.
• Not recording a memorandum of lease for long-term leases with purchase options, leaving you unprotected if the property is sold.

Do’s and Don’ts for Commercial Tenants

Do’s

• Do hire a commercial real-estate attorney because lease negotiation saves far more than legal fees cost.
• Do negotiate a good-guy guaranty or a liability cap because unlimited personal liability can wipe out your family’s finances.
• Do request a CAM audit right because landlords sometimes include improper charges in operating expenses.
• Do confirm zoning and permitted-use language matches your actual business because misaligned uses can shut you down.
• Do require a written notice-and-cure period of at least 10 business days because it gives you time to fix small defaults.

Don’ts

• Don’t sign an LOI without a “non-binding” disclaimer because courts can enforce LOIs as contracts.
• Don’t rely on verbal promises from the broker because the parol evidence rule will shut them out in court.
• Don’t accept a 100% personal guaranty on a long-term lease because your exposure can exceed the value of your business.
• Don’t skip insurance requirements because a lapse can trigger default even when rent is current.
• Don’t ignore the holdover clause because holdover rent is often 150% to 200% of base rent.

Pros and Cons of Commercial Leases

Pros

• Flexibility to relocate and upgrade space as your business grows, unlike purchasing a property.
• Lower upfront capital requirements because leases require only a security deposit, not a down payment.
• Tenant-improvement allowances from landlords that fund build-outs, sometimes $30 to $100 per square foot.
• Predictable occupancy costs over the term when the base rent and escalations are fixed.
• Tax deductibility of rent as a business expense under IRS Publication 535.

Cons

• Long-term binding obligations that survive business failure, as explained under 11 U.S.C. § 365.
• Personal guaranty exposure that pierces the LLC or corporate shield.
• CAM and operating-expense pass-throughs that rise unpredictably.
• Restrictive assignment and subletting clauses that limit exit options.
• No implied warranty of habitability, unlike residential leases.

Key Entities in Commercial Lease Law

The key players in commercial lease law include the American Bar Association section on real property, the International Council of Shopping Centers (ICSC), the National Association of Realtors Commercial, and the CCIM Institute. State secretaries of state handle entity status, and each state’s landlord-tenant statutes govern default rules. Bankruptcy courts enforce 11 U.S.C. § 365, and state courts handle unlawful-detainer actions.

The consequence of not knowing these entities is missing resources that could strengthen your negotiating position. A tenant who consults the ICSC model lease clauses can push back on unfair landlord terms. A common misconception is that only lawyers can use these resources; brokers and business owners can benefit from them as well.

Recap of Key Rulings and Precedents

Courts have shaped commercial lease law through several important rulings. Javins v. First National Realty Corp. created the implied warranty of habitability for residential tenants but not commercial tenants. Holy Properties Ltd. v. Kenneth Cole Productions, Inc. shaped New York’s historical non-mitigation rule. Fischer v. CTMI, L.L.C. in Texas showed how LOIs can become binding. Under 11 U.S.C. § 502(b)(6), landlord claims in bankruptcy are capped at one year of future rent or 15% of the remaining term, whichever is greater, up to three years.

The consequence of ignoring these precedents is misjudging your risk. A tenant who assumes habitability warranties apply will be disappointed. A landlord who assumes full damages in bankruptcy will be shocked by the cap. A common misconception is that case law is static; courts update these doctrines every year, and state statutes often override common-law defaults.

FAQs About Commercial Leases as Binding Contracts

Is a commercial lease binding once signed?

Yes. A commercial lease binds both parties at signature if offer, acceptance, consideration, mutual assent, and capacity exist, and it creates enforceable rights immediately.

Can I get out of a commercial lease without penalty?

No. You generally cannot exit without a negotiated termination clause, a landlord default, a bankruptcy filing, or a mutual surrender agreement signed by both parties.

Does the Statute of Frauds apply to commercial leases?

Yes. Most states require commercial leases longer than one year to be in writing and signed by the party to be charged under each state’s version of the statute.

Is a personal guaranty on a commercial lease enforceable?

Yes. Courts enforce personal guaranties in commercial leases, including unlimited guaranties, good-guy guaranties, and limited-dollar guaranties, subject to normal contract defenses.

Can a landlord evict a commercial tenant without court?

No. Most states prohibit self-help evictions, though Texas and a few others allow lockouts under narrow statutory conditions.

Are verbal commercial leases ever enforceable?

Yes. Short-term commercial leases under one year can be enforceable verbally in many states, but longer terms almost always require a writing under the Statute of Frauds.

Does bankruptcy cancel a commercial lease?

Yes. Under 11 U.S.C. § 365, a bankrupt tenant may reject the lease, capping the landlord’s damages claim at roughly one year of rent or 15% of the remaining term.

Can the landlord increase CAM charges during the lease?

Yes. CAM and operating-expense charges typically adjust annually based on actual costs unless the lease includes a negotiated cap or exclusions.

Is an LOI binding on both parties?

No. Most LOIs are non-binding, but courts can enforce them if the language shows clear intent to be bound and essential terms are present.

Can I assign my commercial lease to a buyer of my business?

No. You usually cannot assign without the landlord’s prior written consent, and change-of-control provisions often treat business sales as assignments.

Does signing by email create a binding commercial lease?

Yes. Under the E-SIGN Act and state UETA statutes, emails and electronic signatures can form binding commercial leases if the essential terms are present.

Can a landlord sue for the full remaining rent after default?

Yes. Acceleration clauses allow landlords to demand all remaining rent at once, subject to the landlord’s duty to mitigate in most states.