For lawyers who own or manage law firms, office space is an important business decision. Location, accessibility, appearance, and the ability to accommodate future growth all matter. But one consideration that sometimes receives insufficient attention is the type of lease a law firm signs.

In commercial real estate, landlords commonly offer several different lease structures. Among them are triple net leases, often referred to as NNN leases, and gross leases. While both arrangements can work in certain circumstances, I have a strong preference for gross leases when it comes to law firms.

The reason is relatively simple. Law firms need predictable expenses, and triple net leases can make budgeting unnecessarily difficult. When a law firm commits to a lease for three, five, or even ten years, it should have a reasonably clear understanding of what that space will cost throughout the lease term.

With a triple net lease, that is not always possible. I raised similar concerns in an earlier article, Do you even need traditional office space?, which discussed the importance of avoiding unfavorable lease terms and considering fixed rental expenses.

What is a triple net lease?

A triple net lease is a commercial lease in which the tenant generally pays base rent plus its share of three major categories of property expenses: real estate taxes, building insurance, and common area maintenance or other operating expenses. These additional charges are frequently referred to as NNN expenses or pass-through expenses.

For example, a landlord might advertise office space at $20 per square foot annually. At first glance, that may appear attractive compared with another property advertising space at $27 per square foot under a full-service gross lease.

However, the $20 rate may only represent the base rent. The tenant might also be responsible for another $8 per square foot in taxes, insurance, and maintenance expenses. In that example, the actual annual occupancy cost would already be $28 per square foot, before considering any separately charged utilities, janitorial services, or other expenses.

The problem is not necessarily the initial cost. The problem is that many of the additional expenses are variable and can increase over time.

The problem with variable expenses

Law firms operate with numerous expenses that must be managed carefully. Attorney and staff salaries, employee benefits, malpractice insurance, technology, marketing, office equipment, and other operating costs all affect profitability. Office rent is another substantial expense, particularly for firms operating multiple locations.

Ideally, rent should be one of the more predictable expenses in a law firm’s budget. If a firm knows that its office will cost a certain amount each month, with clearly defined annual increases, management can plan accordingly.

Triple net leases complicate that process because the tenant’s expenses can fluctuate based on circumstances largely outside the law firm’s control.

Real estate taxes may increase following a reassessment. Property insurance premiums may rise because of broader insurance market conditions. Maintenance expenses may increase because of repairs, rising labor costs, snow removal, landscaping, or other building needs.

Depending on the lease, a law firm may have little ability to control these costs while remaining contractually obligated to pay its allocated share.

That creates uncertainty, and uncertainty makes financial planning more difficult.

Why predictable expenses matter for law firms

Running a law firm requires understanding the relationship between revenue and expenses. Firms must generate sufficient revenue to pay their employees, cover overhead, invest in marketing, maintain technology, and produce a reasonable profit.

This becomes particularly important when preparing an annual budget. Law firm owners need to project expenses for the upcoming year and determine whether anticipated revenue will support those costs.

In my earlier article, Does your law firm have a budget?, I discussed the importance of developing a comprehensive budget that accounts for payroll, taxes, insurance, rent, utilities, marketing, and other operating expenses. A budget is only as useful as the assumptions underlying it, and unpredictable occupancy costs make those assumptions more difficult.

A full-service gross lease can make this process considerably easier. Under a properly structured gross lease, the landlord generally assumes responsibility for the property’s ordinary operating expenses, and the tenant pays an agreed rental amount. Some gross leases include separately negotiated increases or expense adjustments, so the precise language still matters.

Nevertheless, a well-negotiated gross lease can provide substantially greater predictability than a triple net arrangement.

If the lease establishes a monthly rental amount with scheduled increases, the law firm can incorporate those figures into its budget without worrying as much about unexpected increases in property taxes, insurance premiums, or maintenance charges.

For a business that depends on disciplined financial management, that predictability has real value.

An example of how triple net expenses can add up

Consider a law firm renting 3,000 square feet of office space.

The landlord offers a triple net lease with base rent of $20 per square foot and estimated additional expenses of $8 per square foot. Another landlord offers comparable space under a full-service gross lease for $29 per square foot.

At first glance, the triple net lease appears less expensive.

The initial annual costs would look like this:

Initially, the triple net lease saves $250 per month.

But suppose the triple net expenses increase from $8 to $11 per square foot over the next several years. The annual occupancy cost would then rise to $93,000, assuming the base rent remains unchanged.

Meanwhile, if the gross lease has a fixed rental rate for that period, the law firm would continue paying $87,000 annually.

In this hypothetical example, the triple net lease ultimately becomes $6,000 more expensive per year despite appearing less expensive at the beginning.

Of course, gross leases may also include scheduled rent increases, expense stops, or other adjustment provisions. The point is not that a gross lease will always be cheaper. Rather, it is that a carefully structured gross lease can make future costs easier to anticipate.

A law firm should not have to worry about the landlord’s operating expenses

Another concern I have with triple net leases is that they can shift financial responsibility for the building’s operation onto tenants who have little involvement in managing the property.

A law firm generally does not select the building’s insurance carrier, negotiate its property management contracts, or determine how common areas are maintained. Yet under a triple net lease, the firm may be required to contribute toward those expenses.

This can create an uncomfortable arrangement in which the landlord controls many of the decisions affecting property expenses while the tenant bears a substantial portion of the financial consequences.

There may be contractual protections, such as limits on controllable operating expense increases, exclusions for certain capital expenditures, audit rights, and requirements that expenses be reasonable. These provisions can help protect tenants, but they also make lease negotiations more complicated.

From my perspective, lawyers should be spending their time practicing law, serving clients, and managing their firms. They should not have to spend unnecessary time analyzing property tax assessments, insurance increases, or common area maintenance reconciliations.

A predictable rental arrangement allows the law firm to concentrate more fully on its primary business.

Some commercial real estate markets favor triple net leases

It is important to recognize that triple net leases are common in certain commercial real estate markets. Some landlords strongly prefer them because they shift much of the risk associated with property operating expenses to the tenant.

In some locations, a landlord may offer little flexibility on lease structure. Certain office buildings and commercial developments are marketed primarily through triple net arrangements, and tenants may have limited alternatives if they want to occupy a particular property.

That does not mean the law firm should automatically reject every triple net lease. Location, rental rates, available office space, tenant improvements, parking, and the overall condition of the building may justify considering one.

Location remains an important consideration, as discussed in Location matters as it relates to law firm office space. A law firm’s office should be convenient for clients and consistent with the image and direction of the practice.

However, law firm owners should understand what they are agreeing to and carefully compare the total occupancy costs with other available options.

A landlord’s preference for a triple net lease does not necessarily mean that the arrangement is in the tenant’s best interests.

Gross leases can offer greater stability

For many law firms, a full-service gross lease is a more attractive arrangement because it can provide a clearer picture of occupancy costs.

Under this type of lease, the tenant typically pays a stated rental amount that includes many of the building’s operating expenses. Depending on the agreement, utilities, janitorial services, taxes, insurance, and common area maintenance may be included.

The exact inclusions should always be verified. Not every lease described as gross provides the same protections, and some contain provisions allowing landlords to pass along certain expense increases.

Even so, a properly negotiated full-service gross lease can make financial planning much easier. A law firm may know that rent will increase by a specified percentage each year or according to an agreed schedule.

That makes it easier to project expenses, evaluate profitability, and determine whether a particular office location makes financial sense.

This is especially important for growing law firms that may be opening offices in several markets. Predictability across multiple locations can simplify the budgeting process and reduce the risk of unexpected occupancy expenses affecting profitability.

Triple net leases can complicate multi-office law firm budgets

The challenges associated with triple net leases can become even greater when a law firm operates multiple offices.

Consider a firm with locations in several cities or states. Each building may have different property taxes, insurance costs, maintenance expenses, and reconciliation procedures. Some landlords may provide relatively stable estimates, while others may impose substantial adjustments after the end of the year.

Managing these expenses across multiple locations can become a significant administrative burden. A firm may budget one amount for office expenses, only to discover that several locations have experienced unexpected increases.

Individually, an additional $200 or $300 per month at one office may not seem particularly significant. But when those increases occur across numerous locations, they can materially affect the firm’s overall overhead.

In What’s the average law firm growth rate?, I discussed how expanding a law firm can involve opening satellite offices, increasing advertising, and hiring additional employees. Growth can create opportunities, but it also introduces financial risks that must be managed carefully.

Unpredictable occupancy expenses only add to those risks. When a firm is evaluating whether an office is profitable, management should not have to continually revise its projections because the landlord’s property-related expenses keep changing.

For this reason, I believe the lease structure should be an important consideration whenever a law firm evaluates new office space.

If a law firm is going to assume property-related risks, why not consider buying?

There is another question law firm owners should consider when evaluating a triple net lease: If the firm is going to assume substantial responsibility for property-related expenses, would purchasing office space make more sense?

Under a triple net lease, the tenant may pay base rent along with property taxes, insurance, maintenance, and other operating expenses. Yet the tenant generally does not build equity in the property.

The landlord retains ownership and benefits from any appreciation in the property’s value, while the tenant continues making payments without acquiring an ownership interest.

Purchasing commercial real estate can present an alternative, particularly for an established law firm with stable operations and a long-term commitment to a particular market.

Ownership may allow the firm or its owners to build equity, potentially benefit from appreciation, and exercise greater control over the property. Depending on the financing arrangement, ownership may also provide more predictable principal and interest payments, although taxes, insurance, repairs, and maintenance would remain variable.

Of course, buying commercial real estate is not appropriate for every law firm. Purchasing requires capital, financing, and a willingness to assume ownership responsibilities. A firm may also need flexibility to relocate, expand, or downsize as its business changes.

Commercial property values can decline, major repairs can be expensive, and selling an office building may take considerable time. Ownership introduces risks that should not be overlooked.

Nevertheless, if a landlord insists that a tenant assume significant property-related expenses through a triple net lease, it is reasonable for a law firm owner to ask whether purchasing property would be a better long-term investment.

If the firm is going to bear many of the costs associated with property ownership, there may be circumstances in which actually owning the property is more attractive.

Negotiating protections when a triple net lease cannot be avoided

Sometimes, a law firm may find an otherwise excellent office location where the landlord is unwilling to offer a gross lease. In those circumstances, the firm should carefully negotiate the terms of the triple net arrangement rather than simply accepting the landlord’s standard lease.

One important consideration is whether annual increases in controllable operating expenses can be capped. The firm should also examine which expenses are included, whether major capital improvements can be passed through to tenants, and how the landlord calculates each tenant’s proportionate share.

The lease should address whether the tenant has the right to review or audit operating expense statements and how disputes over charges will be resolved. It may also be appropriate to negotiate exclusions for certain landlord expenses, management fees, financing costs, or expenditures that primarily benefit other tenants.

Law firms should request historical operating expense information when available and examine whether the landlord’s current estimates appear realistic. A low initial estimate can make a property appear more affordable than it ultimately becomes.

Another consideration is the length of the lease. A law firm entering into a long-term triple net arrangement should understand that even relatively modest annual expense increases can become significant over time.

These protections may not eliminate all the uncertainty associated with a triple net lease, but they can reduce some of the risks.

The lowest advertised rent is not always the best deal

One mistake law firm owners should avoid is comparing office spaces based solely on advertised rental rates.

A property advertised at $19 per square foot under a triple net lease may be more expensive than another property advertised at $27 per square foot under a full-service gross lease. The actual comparison depends on the total occupancy costs, the expenses included, and the likelihood of future increases.

Tenant improvement allowances, parking expenses, utilities, security deposits, personal guaranties, renewal options, and the condition of the space should also be considered.

As explained in What is a tenant improvement allowance?, the cost of modifying an office to meet a law firm’s needs can be an important part of negotiating a commercial lease. A seemingly attractive rental rate may not be such a good deal if the firm must spend substantial money renovating the space.

A law firm may save money by selecting an office that requires little or no renovation, even if the advertised rental rate is somewhat higher. Likewise, a more expensive location may be justified if it provides better accessibility, parking, or opportunities for growth.

The key is to evaluate the entire financial arrangement rather than focusing on a single rental figure.

For law firms, office space should support the business rather than become an unnecessary source of financial uncertainty.

Law firm owners should prioritize predictability

The economics of operating a law firm require careful attention to overhead. Revenue can fluctuate based on client demand, collections, staffing levels, and broader economic conditions. Law firm owners cannot control every variable affecting their businesses.

That makes it especially important to control the expenses that can be made predictable.

A law firm generally knows what it has agreed to pay employees, what its technology subscriptions cost, and what its scheduled debt payments will be. While these expenses can change, management can often plan for them with reasonable accuracy.

Office rent should ideally fall into the same category.

The relationship between revenue, employee compensation, and overhead is also important. In How much to pay an associate attorney?, I discussed the traditional rule of thirds, under which a portion of revenue goes toward attorney compensation, another portion toward overhead, and the remainder toward the firm’s profit.

That framework illustrates why controlling overhead is so important. When occupancy expenses rise unexpectedly, those increases can reduce the amount available for compensation, marketing, technology, and profit.

A well-negotiated gross lease can provide stability that is difficult to achieve under a triple net arrangement. Knowing what the firm will pay each month allows management to develop more reliable budgets and make better long-term financial decisions.

This is not simply a matter of convenience. Predictable expenses help law firms evaluate whether offices are profitable, determine when expansion is appropriate, and avoid unexpected financial pressures.

Why I prefer gross leases for law firms

My preference is straightforward. When a law firm rents office space, I generally favor a full-service gross lease with clearly defined rental obligations and predictable increases.

Triple net leases may be attractive to landlords, and they are common in certain commercial real estate markets. They may also be appropriate for particular tenants or properties. But that does not make them the preferred arrangement for a law firm.

Law firms already operate in an environment where revenue, collections, staffing, and client demand can fluctuate. Adding unnecessary uncertainty to office occupancy costs can make financial management more difficult.

If a firm can obtain comparable office space under a gross lease, I believe that arrangement often deserves serious preference. If a landlord insists on a triple net lease, the firm should carefully evaluate the total costs, negotiate meaningful protections, and consider whether purchasing property might offer a better long-term alternative.

Ultimately, commercial real estate decisions should support the financial health and operational needs of the law firm. A lease that appears inexpensive today may prove much more costly over time if the firm cannot reasonably predict its future obligations.

For lawyers who own and manage law firms, stability and predictability have considerable value. In my view, that is one of the strongest arguments for choosing a gross lease over a triple net lease whenever a reasonable alternative is available.

This article is for general informational purposes only and does not constitute legal, financial, or real estate advice. Commercial lease terms vary considerably, and law firms should carefully review proposed agreements with qualified legal, financial, and commercial real estate professionals before making leasing or purchasing decisions.