A medical office lease is the second-largest expense most practices carry, right behind payroll — and it is the document owners read the least. That is not a criticism. It is a forty-page contract written by the landlord’s attorney, in a language that sounds like English but is not, describing costs that do not show up until year three. Most providers skim the rent number, check the term, and sign.
The rent number is the one thing on the page you can almost predict. Everything expensive is somewhere else. Below are the eight clauses that decide whether a lease works for your practice or for your landlord — what each one actually means, and where the room to negotiate really is. You negotiate all of it before you sign. After that, you live with it.
1. Base rent and the escalations
The quoted rent is the starting line, not the deal. What matters is the annual escalation — the fixed percentage your rent climbs every year. A “3% annual increase” sounds modest until you compound it across a ten-year term: you finish paying roughly a third more per square foot than you started. Landlords will quote the year-one rate loudly and bury the escalator in a schedule. Read the schedule. On a longer term, a half-point difference in the escalator is worth more than a few free months up front.
2. Operating expenses, CAM, and the base year
This is the clause that quietly costs the most. Beyond base rent, you pay your share of the building’s operating expenses — common area maintenance (CAM), property taxes, insurance, management fees. In a triple-net (NNN) lease, those are billed on top of rent and reconciled every year, and they only go up.
Two things to pin down. First, the base year — the year against which your future expense increases are measured. A landlord who sets a low base year quietly guarantees you larger increases later. Second, an expense cap: negotiate a ceiling on how much the controllable operating expenses can rise year over year. Ask for the last two years of actual reconciliations before you sign — if the landlord won’t share them, that tells you something.
3. Rentable vs. usable square footage — the load factor
You will be quoted a “rentable” square footage and you will pay rent on all of it. But you only occupy the “usable” square footage. The difference — the load factor — is your prorated share of lobbies, corridors, restrooms, and mechanical rooms, and in a multi-tenant medical building it commonly adds 12–20% on top of your usable space. It is not necessarily wrong, but it is real money, and it is worth confirming the number is calculated consistently with how other tenants in the building are charged.
4. The tenant improvement allowance
Medical and dental build-outs are expensive — plumbing, dedicated electrical, lead-lined walls, specialized HVAC, ADA-compliant treatment rooms. The tenant improvement (TI) allowance is the dollar amount per square foot the landlord contributes toward that work. It is one of the most negotiable numbers in the entire lease, and it is often where the real value of a deal lives.
Watch what the allowance is allowed to cover — some landlords restrict it to “building standard” work that a clinical space blows past immediately. Watch who owns the improvements at the end. And if you are taking a longer term or a larger space, the allowance should reflect that leverage.
5. Renewal options
A renewal option gives you the right — not the obligation — to extend at the end of the term. Without one, you are negotiating from zero when your lease expires, against a landlord who knows exactly how expensive it would be for a medical practice to move. That is the weakest position in real estate.
Get options in writing, and pin down how the renewal rent is set. “Fair market value” with no guardrails is an invitation to a fight later; a defined rate or a capped increase protects you. And note the notice window — miss the date to exercise your option and it can simply evaporate.
6. Exclusive use
If you are a specialist, an exclusive-use clause prevents the landlord from leasing other space in the building to a direct competitor. For a practice that depends on referrals and a defined patient base, this is not a nicety — it is protection for the value of your location. Define it carefully: too narrow and a competitor slips through on a technicality; too broad and the landlord won’t agree. This is worth getting exactly right.
7. Assignment and subletting
You may not be thinking about the end of the lease at the beginning of it. You should be — because the day you sell your practice, this clause governs whether the buyer can take over your space. An assignment provision that lets the landlord withhold consent unreasonably, or recapture the space, or charge a premium, can complicate or even sink a practice sale years from now. Negotiate for consent that “shall not be unreasonably withheld,” and carve out transfers tied to a sale of the practice. Your future exit depends on language you sign today.
8. Relocation and demolition clauses
These two get skimmed and they are the ones that can move you out of a space you spent six figures building. A relocation clause lets the landlord move your practice to different space in the building; a demolition clause lets them terminate the lease early to redevelop. For a clinical practice — with fixed equipment, a location patients know, and a build-out you paid to install — either one can be devastating. Strike them if you can. If the landlord won’t remove them, negotiate hard on notice periods and on who pays to move and rebuild.
None of these clauses is a deal-killer on its own. All of them are negotiable in the window before you sign, and all of them are expensive — or immovable — in the years after. The mistake we see most often is not signing a bad lease. It is signing a standard lease, as written, without anyone at the table whose only job was to represent the tenant.
That is the entire point of tenant representation: the landlord has a broker and an attorney working their side of every one of these clauses. You should have someone working yours — and because the landlord customarily pays the tenant broker’s commission, that representation typically costs the practice nothing.