Why the Lease Structure Decides the Deal
Two Florida retail strips can trade at the same price per square foot and produce very different returns. The reason usually sits in the lease, not the building. A landlord who collects $30 per square foot on a full service gross lease and pays every operating bill out of that check is running a different business than a landlord who collects $22 per square foot on a net lease and passes the bills to the tenant. The headline rent tells you almost nothing until you know who pays for taxes, insurance, and upkeep.
That is why experienced buyers of Florida commercial property read the lease before they read the pro forma. Net operating income, the number that drives value through the cap rate, is calculated after operating expenses. A lease structure that moves those expenses between landlord and tenant moves the income, the risk, and the price a buyer will pay.
This guide covers the three structures that matter most in Florida: gross, modified gross, and net. It explains who carries which costs, where hurricane-season insurance and property tax reassessment change the math, and what to check before you sign or buy. At MJI Realty Group, we walk owners and investors through these comparisons before a single offer goes out, because the structure can be negotiated while the building cannot be moved.
The Three Core Structures in Plain Terms
Every commercial lease answers one question: who pays the operating expenses? The answer falls on a spectrum.
- Gross lease (full service): The tenant pays one rent figure. The landlord pays property taxes, insurance, utilities, and maintenance from that rent.
- Modified gross lease: The tenant pays base rent, and the lease assigns some expenses to the tenant, commonly utilities, janitorial service, or a share of increases above a set level. The landlord keeps the rest.
- Net lease (single, double, or triple net): The tenant pays base rent plus some or all of property taxes, insurance, and common area maintenance. Triple net, or NNN, passes all three.
Florida does not hand you these structures by statute. They are contract terms. Part I of Chapter 83 of the Florida Statutes covers nonresidential tenancies and supplies default rules for things like holdover tenants and a landlord’s lien, but it leaves the allocation of operating costs to the written agreement. That makes the drafting everything.
Names are also loose in practice. One broker’s modified gross is another broker’s double net. Never rely on the label. Read the expense clause, the definitions of operating expenses, and any exclusions.
Full Service Gross Leases: Simple Rent, Open Ended Landlord Risk
Gross leases dominate multi-tenant office space, particularly in downtown Miami, Fort Lauderdale, and West Palm Beach towers where the landlord operates the building as a service. The tenant sees one number and budgets accordingly. That simplicity is a selling point when you are competing for smaller professional tenants who do not want to audit pass-through statements.
For the landlord, the gross lease transfers cost risk to the owner. If property taxes rise after a sale reassessment, or insurance premiums jump at renewal, the landlord absorbs the increase until the lease allows a reset. Florida owners felt this sharply as property insurance costs climbed over recent years. A gross lease with no escalation mechanism can quietly erode net operating income in the middle of a five year term.
Protecting yourself on a gross lease
Most well drafted gross leases include a base year clause. The tenant pays a flat rent, and then pays its proportionate share of any operating expense increases above the expenses in a stated base year. This is technically a modified gross structure, and it is the most common fix for the open ended risk. Also look for annual rent escalators, either fixed percentage steps or tied to an index, so that rent keeps pace with costs.
For tenants, the gross lease is predictable but you pay for that comfort. Landlords price their risk into the rent, so the base figure is higher than a comparable net lease. If your business is stable and you want fixed occupancy costs, the premium may be worth it.
Modified Gross Leases: The Negotiated Middle
Modified gross is where most real negotiation happens in Florida. The structure has no fixed definition, which is both its strength and its trap. A typical version has the tenant pay base rent plus its pro rata share of expense increases over a base year, plus its own electricity and interior cleaning. The landlord keeps responsibility for the roof, structure, and common areas.
Three questions settle most disputes before they start:
- Is there a base year or an expense stop, and who sets the number?
- Which costs are operating expenses, and which are capital items the landlord must absorb?
- Does the tenant have audit rights over the landlord’s expense statement?
The capital item question matters most in Florida. A new roof or a replacement of a building’s impact-rated glazing can cost far more than a year of routine maintenance. Tenants should push for language that excludes major capital replacements from pass-throughs, or at least amortizes them over the useful life of the item. Landlords benefit from the opposite, since recovering those costs protects returns.
For an owner, modified gross offers a balance. You keep control of the building, and you share inflation risk without handing the tenant a long list of obligations that may scare off smaller businesses.
Net Leases in Florida: NN and NNN
Net leases are the standard for freestanding retail, bank branches, restaurants, pharmacies, and many industrial buildings across the state. On a triple net lease, the tenant pays property taxes, building insurance, and maintenance, in addition to base rent. The landlord’s income stream becomes close to a bond: rent arrives, expenses do not.
That predictability is why investors with 1031 exchange proceeds often target NNN properties. They want passive income from a creditworthy tenant with a long term. If you are structuring an exchange, review the rules in IRS guidance on rental property alongside your tax advisor, since lease structure affects how income and expenses report.
Where NNN gets complicated
Florida’s insurance market is the sharpest edge. Under an NNN lease, the tenant pays building insurance, but the landlord often has to carry the policy and bill it back. A wind and flood premium that doubles lands on the tenant’s budget. Smart tenants cap annual increases in controllable expenses, and negotiate the right to buy their own coverage if it meets lender requirements.
Property taxes bring a second issue. When a Florida commercial property sells, the assessed value can reset to near market value, and the tenant under an NNN lease pays the difference. A tenant signing a ten year NNN lease on a building the landlord plans to sell should ask what reassessment looks like at the likely sale price. Buyers should run that number into their own projections before closing.
Absolute net leases go one step further and push structural repairs and roof replacement to the tenant as well. They are rare outside of single tenant credit deals, and they carry a lower rent to match.
Comparing the Structures Side by Side
| Item | Gross | Modified gross | Triple net |
|---|---|---|---|
| Base rent level | Highest | Middle | Lowest |
| Property taxes | Landlord | Shared above base year | Tenant |
| Insurance | Landlord | Shared above base year | Tenant |
| Common area upkeep | Landlord | Negotiated | Tenant |
| Landlord cost risk | High | Moderate | Low |
| Tenant budget certainty | High | Moderate | Low |
Read the table as a tendency, not a rule. A landlord can write a gross lease with pass-through riders, and a net lease can cap tenant exposure. The columns show where the default risk sits before negotiation starts.
Property type pushes the choice too. Multi-tenant office leans gross or modified gross. Neighborhood retail centers tend toward NNN with common area maintenance charges. Industrial and warehouse space across Miami-Dade, Broward, and Palm Beach commonly uses NNN, with the landlord handling the roof and structure.
Common Area Maintenance, Audits, and Hidden Costs
Common area maintenance, or CAM, is where lease disputes grow. The charge covers parking lots, landscaping, lighting, security, and sometimes management fees. Because the landlord prepares the bill, the tenant needs rights to check it.
A short list of provisions worth negotiating:
- Audit rights: The ability to review the landlord’s books within a stated period after receiving the annual reconciliation.
- Management fee cap: A fixed percentage of rent or expenses, stated clearly.
- Exclusions: Leasing commissions, debt service, owner’s legal fees, and prior owner’s deferred maintenance should not pass to tenants.
- Controllable expense cap: An annual limit on increases for items the landlord can influence.
- Gross-up clause: Rules for adjusting variable expenses when the building is not fully occupied.
Hurricane recovery costs deserve special attention in South Florida. After a major storm, repair costs, deductibles, and debris removal can spike. The lease should say whether those costs are operating expenses, capital items, or insurance matters. Writing that down in advance beats arguing about it in October.
Taxes and Rent in Florida
Florida has no state personal income tax, and for years it charged sales tax on commercial rent. The state repealed that tax on commercial lease payments effective October 1, 2025, and you can confirm current rules with the Florida Department of Revenue. Landlords who used to separate a sales tax line on their invoices should check their leases for outdated language that still references it.
Federal tax treatment still matters. Rental income is reported under federal rules, and depreciation of the building shifts the after tax return. Whether the landlord pays expenses directly or the tenant does, the landlord’s reported income changes accordingly. Talk with a CPA about how lease structure affects your annual filing and whether cost segregation helps your property.
Market data helps you test rent assumptions. Florida Realtors publishes regional market information, and local brokerage research tracks asking rent by submarket. Compare rents on the same lease basis. An NNN asking rent of $20 per square foot and a gross asking rent of $28 per square foot can be nearly identical in what the landlord nets.
A Practical Checklist Before You Sign or Buy
Whether you are a tenant or an investor, a few steps catch most problems early.
- Convert every lease to a net-to-landlord figure. Subtract the landlord’s actual expenses from gross rents to compare properties fairly.
- Request three years of expense history and the last two CAM reconciliations.
- Read the definitions section. Operating expenses, capital expenditures, and base year are where the real deal lives.
- Check escalators. Fixed steps, index-based increases, and expense pass-throughs should all be clear.
- Review estoppel language for existing tenants if you are buying, so you know the rents and terms the seller represents are accurate.
- Ask about insurance and reassessment. Model what happens to expenses at the new purchase price.
- Confirm remaining term and renewal options against your holding period.
Owner-occupants should also ask which structure suits a future sale. A building leased on clean NNN terms to a credit tenant often prices at a lower cap rate than one with a gross lease and open ended costs.
Working With a Boutique Brokerage on Commercial Lease Strategy
Lease structure is negotiable, and experienced representation changes the outcome. MJI Realty Group works with owners and investors on residential and commercial transactions across South Florida, with a focus on discretion and fast, well-informed decisions. If you are weighing a purchase of a leased commercial property, or deciding how to structure a lease on an asset you already own, bring us the lease and the rent roll and we will compare the options on a net income basis.
Call or text (561) 859-5631 to discuss your property. Real estate decisions depend on individual circumstances; this is general information, not legal, tax, or investment advice for your specific situation. Have a Florida real estate attorney review any lease before you sign.
