Commercial Real Estate Lease Disputes: Common Legal Pitfalls in California

March 23, 2026

Commercial Real Estate Lease Disputes: Common Legal Pitfalls in California

Commercial real estate leases are often complex, long-term agreements that govern the relationship between landlords and tenants. In California, these leases can become the source of significant disputes when terms are unclear, obligations are misunderstood, or circumstances change over time. For businesses in Oakland and throughout the state, understanding common legal pitfalls can help prevent costly conflicts and protect long-term interests. At Martin APC, we provide legal assistance to the Oakland public in navigating commercial lease disputes.


Ambiguous Lease Terms


One of the most common causes of disputes in commercial leases is unclear or ambiguous language. Terms related to rent escalation, maintenance responsibilities, or permitted use of the property can lead to disagreements if not carefully defined.


California courts often interpret ambiguous lease provisions based on the intent of the parties, but this process can be time-consuming and unpredictable. Both landlords and tenants benefit from having precise, well-drafted lease agreements that minimize room for interpretation.


Maintenance and Repair Obligations


Disputes frequently arise over who is responsible for repairs and maintenance. Commercial leases in California may be structured as gross leases, net leases, or modified gross leases, each assigning responsibilities differently.


If a lease does not clearly outline which party is responsible for structural repairs, HVAC systems, or common areas, disagreements can escalate

quickly. Tenants may assume landlords are responsible for major repairs, while landlords may expect tenants to handle most upkeep.


Rent Escalation Clauses


Rent escalation provisions, such as those tied to the Consumer Price Index (CPI) or scheduled increases, are another common source of conflict. Tenants may be surprised by rising costs, especially if escalation formulas are not clearly explained.


Disputes can occur when landlords calculate increases differently than tenants expect or when the lease lacks transparency about how adjustments are determined.


Default and Eviction Issues


Commercial eviction processes in California differ from residential evictions and often involve strict lease enforcement. A tenant’s failure to pay rent or comply with lease terms can trigger default provisions.


However, disputes may arise over whether a default actually occurred, whether proper notice was given, or whether the tenant had an opportunity to cure the issue. Landlords must follow specific legal procedures, and tenants may have defenses depending on the circumstances.


Use Clauses and Zoning Conflicts


Commercial leases typically include use clauses that restrict how the property can be used. Problems arise when a tenant’s business activities fall outside the permitted use or when local zoning laws change.


A tenant may face legal consequences if their operations violate zoning regulations, even if the lease appears to allow such use. This can lead to disputes between landlords and tenants over compliance responsibilities.


Assignment and Subleasing Restrictions


Businesses often need flexibility to assign leases or sublease space, especially if their operations change. However, many commercial leases include strict limitations on these actions.


Disputes may arise when landlords withhold consent or impose conditions that tenants believe are unreasonable. California law may impose certain standards on how landlords exercise discretion, but these issues can still become contentious.


Personal Guarantees and Liability


In many commercial leases, landlords require personal guarantees from business owners. These guarantees can expose individuals to significant financial liability if the business defaults.


Disputes may occur when landlords attempt to enforce guarantees, particularly if the tenant believes the landlord has not fulfilled their own obligations under the lease.


Failure to Review Lease Terms Carefully


Perhaps the most avoidable pitfall is entering into a lease without fully understanding its terms. Commercial leases are often heavily negotiated documents, and overlooking key provisions can lead to long-term consequences.


Seeking legal guidance before signing a lease can help identify potential risks and ensure that the agreement aligns with your business goals.


How Legal Guidance Can Help


Commercial lease disputes can be complex, involving detailed contract interpretation and California-specific laws. Whether you are a landlord or a tenant, addressing issues early can help prevent escalation and reduce financial exposure.


At Martin APC, we assist clients in Oakland with reviewing lease agreements, resolving disputes, and protecting their interests in commercial real estate matters.

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