Most commercial tenants think lease negotiation starts when you hand over a signed LOI. It actually starts 90 days before that, and it ends only when your attorney has confirmed the final executed lease matches every provision you agreed to. In between, there are a dozen distinct phases, each with its own participants, deliverables, and potential failure modes.

This guide gives you the complete 90-day commercial lease negotiation timeline—from market survey through post-execution abstract—including who is responsible for each action, what milestones signal you are on track, and the red flags at each stage that should prompt you to slow down or walk away.

90 Median days from LOI to executed lease (mid-size tenant)
4–6 Average number of lease redline exchanges
Day 45 When most deals stall or fall apart
23% Of commercial lease negotiations fail after LOI

The Full 90-Day Timeline Overview

Phase Days Key Deliverable Primary Responsible
1. Market Survey & Site SelectionPre-Day 1Target shortlist (3–5 properties)Tenant + Broker
2. Tour & Initial PricingPre-Day 1 to Day 7Term sheet / informal proposalBroker
3. LOI Drafting & ExecutionDay 1–14Signed Letter of IntentTenant + Broker + Attorney
4. Lease DraftingDay 15–30First draft lease from landlordLandlord attorney
5. Due DiligenceDay 15–35DD complete; title search, zoning confirmTenant + Attorney
6. First RedlineDay 30–45Tenant redline of first draftTenant attorney
7. Lease Negotiation (Rounds 2–4)Day 45–70Agreed-upon draftBoth attorneys
8. Work Letter / TI ScopeDay 50–75Executed work letter or TI exhibitTenant + Landlord
9. Final Form & ExecutionDay 75–90Fully executed leaseBoth parties
10. Post-ExecutionDay 90+Abstract, calendar, permitsTenant + PM

Phase 1 & 2: Market Survey, Site Selection, and Initial Pricing (Pre-Day 1 to Day 7)

Phase 1–2
Market Survey, Touring, and Initial Pricing
Pre-Negotiation — Typically 2–6 weeks before LOI

The quality of your LOI depends on the quality of your market knowledge. Tenants who skip a proper market survey leave money on the table because they have no competitive context for what "good terms" looks like in their specific submarket.

TENANT
Define space requirements: SF, layout, parking, location constraints, budget ceiling
BROKER
Pull all available comparable spaces; identify 3–5 viable candidates including an alternative as leverage
BROKER
Coordinate tours; obtain landlord pricing sheets and current deal terms
TENANT
Tour spaces; rank preference; identify one primary and one credible backup
BROKER
Compile market comp data to support rent and TI negotiation

⚠ Red Flags — Phase 1–2

  • Broker steering you toward only one option (may have higher commission on that deal)
  • Landlord refuses to provide any comparable lease terms or market data
  • Space requires significant unlisted capital improvements not mentioned in listing
  • Building has more than 25% vacancy with no clear leasing momentum

    • Phase 3: LOI Drafting and Execution (Days 1–14)

    Phase 3
    Letter of Intent (LOI) Drafting and Negotiation
    Days 1–14 of the formal negotiation clock

    The LOI is not just a placeholder — it is the foundation of your entire deal. Every major economic term you agree to in the LOI will be extremely difficult to reopen in the lease. Get a tenant attorney involved in LOI review even if you plan to sign without markup — you need to understand what you are committing to.

    BROKER
    Draft initial LOI covering: rent, term, TI allowance, free rent, options, commencement, security deposit
    ATTORNEY
    Review LOI for legal implications; flag any provisions that could create problems in the lease
    TENANT
    Negotiate key terms: push on TI allowance, free rent, escalation caps, renewal options
    BROKER
    Exchange counterproposals; reach agreement on all LOI terms
    TENANT
    Execute LOI — both tenant and landlord sign

    What to Include in Your LOI

    A strong LOI covers the following deal points explicitly. Anything left vague in the LOI will be filled in by the landlord's lease form — usually not in your favor.

    • Premises: exact suite, floor, approximate SF (confirm measurement method)
    • Term: start date (or method of determination), end date, number of years
    • Base rent: $/SF/yr annual rate and monthly dollar amount
    • Rent escalation: percentage or CPI formula; annual or every X years
    • Free rent: number of months, which months (beginning or end of term?)
    • Tenant Improvement Allowance: total dollar amount, per-SF amount, draw timeline
    • Security deposit: dollar amount, form (cash or letter of credit), burn-down schedule
    • Renewal options: number of options, term length, rent mechanism (FMRR or fixed step)
    • Parking: number of spaces, reserved vs. unreserved, cost
    • Exclusivity: if applicable, define the protected use and geographic scope
    • Lease type: gross, modified gross, NNN — and who pays what operating expenses
    • Exclusivity period: LOI grants exclusivity (no-shop) for defined period (60–90 days)

    Critical: Never sign an LOI that leaves rent escalations vague ("TBD") or TI allowance as "per landlord's standard." These are not placeholders — they are blanks the landlord will fill in at their discretion. Every major economic term must be in the LOI.

    Phase 4 & 5: Lease Drafting and Due Diligence (Days 15–35)

    Phase 4–5
    First Draft Lease + Parallel Due Diligence
    Days 15–35

    While the landlord's attorney drafts the lease, use this period for parallel due diligence. Many tenants wait until after they have the lease draft to begin DD — that is too late. A due diligence finding that changes your deal position (building financial distress, zoning problem, title issue) is much better discovered before you have invested attorney time in two rounds of redlines.

    LANDLORD ATT.
    Draft lease based on LOI terms; deliver first draft to tenant attorney
    TENANT
    Order zoning confirmation for intended use (typically 1–2 weeks)
    TENANT
    Inspect physical condition of premises with contractor; confirm HVAC age, electrical capacity
    ATTORNEY
    Search title for recorded easements, restrictions, or liens affecting premises
    TENANT
    Review landlord entity for financial stability; check for liens on property
    TENANT
    Confirm building permits for intended use; verify ADA compliance status

    ⚠ Red Flags — Phase 4–5

  • First draft lease materially changes economic terms from agreed LOI
  • Landlord attorney takes more than 15 business days to deliver first draft (deal urgency questionable)
  • Zoning does not allow your intended use without a variance
  • HVAC system is 15+ years old with no landlord replacement obligation
  • Mortgage lender will not provide SNDA agreement within reasonable timeframe
  • Title search reveals liens, easements, or restrictions materially affecting your use

    • Phase 6: First Redline (Days 30–45)

    Phase 6
    Tenant Attorney Redline of First Draft
    Days 30–45

    The first redline is typically the most extensive. A good tenant attorney will address 30–80 provisions in the first mark-up — not because all of them are major issues, but because landlord forms systematically exclude all tenant-protective language by default. The job of your attorney is to rebalance the document toward market standard.

    ATTORNEY
    Read entire lease; identify all provisions deviating from market standard
    ATTORNEY
    Redline lease: fix CAM exclusions, add landlord default, add SNDA, fix insurance, add audit rights
    ATTORNEY
    Confirm all LOI terms are accurately reflected in draft (rent, TI, options, free rent)
    TENANT
    Review attorney markup; prioritize issues into must-have vs. nice-to-have
    ATTORNEY
    Deliver redline to landlord attorney with cover note explaining key positions

    Prioritizing Your Redline Issues

    Not all redline issues are equal. A useful framework is to sort your comments into three buckets:

    Bucket Description Examples Approach
    Must-Have Deal-breaker if not resolved SNDA, CAM cap, HVAC replacement, no personal guarantee Non-negotiable — hold firm
    Important Significant economic or legal impact Audit rights, landlord default, assignment consent standards Trade against landlord priorities
    Nice-to-Have Tenant-favorable but not critical Signage upgrades, landlord reminder notice, expanded parking Use as trade chips or accept landlord position

    Phase 7: Negotiation Rounds 2–4 (Days 45–70)

    Phase 7
    Back-and-Forth Lease Negotiation
    Days 45–70 — where most deals stall

    Most commercial lease negotiations require 3–5 full redline exchanges. The first exchange is the big swing — both sides establish positions. Subsequent rounds are increasingly focused on remaining open issues. A deal with more than 6–7 exchanges has usually broken down at the principal level and needs a direct conversation between tenant and landlord — not attorney-to-attorney redlines.

    ATTORNEYS
    Exchange redlines; reach resolution on standard provisions in rounds 2–3
    TENANT
    Maintain direct contact with landlord; don't let attorneys negotiate past their mandate
    BOTH
    Identify 3–5 remaining open issues; escalate to principals for resolution
    TENANT
    Trade open issues using your priority buckets — give on nice-to-haves, hold on must-haves
    ATTORNEYS
    Final clean draft incorporating all agreed changes

    ⚠ Red Flags — Phase 7

  • Landlord reopens LOI-agreed economics in the lease (major breach of deal integrity)
  • More than 7 redline exchanges with no resolution on any open issue
  • Landlord attorney consistently ignores tenant positions without comment or counteroffer
  • Landlord pressure to accept "standard form" for any provision you have flagged as important

    • Phase 8: Work Letter and TI Scope (Days 50–75)

    Phase 8
    Work Letter, TI Budget, and Construction Scope
    Days 50–75 — often runs parallel to lease redlines

    The work letter (or tenant improvement exhibit) governs how the TI allowance is disbursed, who hires the contractor, who approves plans, and what happens if construction costs exceed the allowance. This document is often more hotly negotiated than the lease itself — because it involves real construction dollars. Don't let the TI exhibit be an afterthought handled after the lease executes.

    TENANT
    Engage contractor for preliminary cost estimate and floor plan
    LANDLORD
    Provide work letter draft; specify approved contractor list (if any), permit responsibility, plan approval process
    ATTORNEY
    Review work letter: confirm TI draw schedule, overage responsibility, completion date, and TI deadline
    TENANT
    Negotiate: landlord should not control contractor selection for tenant-funded work
    BOTH
    Execute work letter as exhibit to lease

    Phase 9: Final Execution (Days 75–90)

    Phase 9
    Final Lease Form and Execution
    Days 75–90
    BOTH ATT.
    Prepare clean execution copy of lease incorporating all agreed changes
    TENANT ATT.
    Final review: confirm all agreed terms are accurately reflected; no provisions "slipped in"
    TENANT
    Arrange security deposit transfer and first month's rent
    TENANT
    Execute lease; confirm receipt of fully executed copy
    TENANT
    Arrange certificate of insurance naming landlord as additional insured

    Critical final check: Before signing, your attorney must do a clean-to-redline comparison of the execution copy against the last agreed draft. Landlord attorneys occasionally insert minor changes in the "clean" execution version. This is rare but it happens — catch it before you sign.

    Phase 10: Post-Execution (Day 90+)

    Phase 10
    Abstract, Calendar, Permits, and Construction
    Day 90 forward
    TENANT
    Create lease abstract and enter all key dates in calendar system
    TENANT
    Calendar option notice deadlines (set 90-day and 30-day advance reminders)
    TENANT
    Pull building permits; begin construction per approved plans
    TENANT
    Submit first TI disbursement request per work letter requirements
    TENANT
    Obtain certificate of occupancy; confirm rent commencement date with landlord

    Master Checklist: 90-Day Negotiation

    • Tenant rep broker engaged before first property tour
    • Market survey completed; 3–5 alternatives identified
    • LOI covers all 12 key economic terms (see list above)
    • Attorney reviewed LOI before execution
    • Due diligence completed before first lease redline
    • Zoning confirmed for intended use
    • Physical inspection completed; HVAC age documented
    • Title search completed
    • Landlord financial stability confirmed (no pending foreclosure)
    • First draft lease reviewed within 5 business days of receipt
    • All LOI terms verified in first draft lease
    • CAM exclusions and cap negotiated in round 1
    • SNDA requested from landlord's lender in round 1
    • Audit right added to operating expense provisions
    • Landlord default provision added
    • Guarantee burn-down negotiated
    • Work letter executed before or simultaneously with lease
    • Final execution copy reviewed against last agreed draft
    • Certificate of insurance delivered at execution
    • Lease abstracted within 5 days of execution
    • Option notice deadline calendared with 90-day advance reminder
    • TI draw deadline calendared

    For more detail on individual phases, see our guides on LOI best practices, commercial lease due diligence, and negotiation tactics. Use the LeaseAI checklist tool to track your progress through the process, and the ROI calculator to quantify the value of each negotiation win.

    Know Every Term Before You Sign

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    Frequently Asked Questions

    How long does commercial lease negotiation typically take?
    Most commercial lease negotiations run 60 to 120 days from initial LOI to executed lease. The 90-day estimate is a reliable median for a mid-size tenant in an institutional building. Ground-up build-to-suit deals can take 6–18 months. Small tenant deals in owner-operated buildings can sometimes close in 30–45 days.
    What is a letter of intent (LOI) in commercial real estate?
    A letter of intent is a non-binding document that outlines the key business terms both parties have agreed to in principle before a formal lease is drafted. It covers rent, term, TI allowance, options, and other major deal points. A well-drafted LOI makes the lease drafting process significantly faster and reduces the risk of deal-breaking surprises in the formal lease.
    What should I do during the lease due diligence period?
    During due diligence, tenants should: (1) verify the landlord's ownership and financial stability, (2) order a zoning confirmation for intended use, (3) inspect the physical condition of the space, (4) review existing service contracts for the building, (5) check for any recorded easements or restrictions, and (6) run the landlord entity through a litigation database.
    When should I hire a tenant representative broker?
    Hire a tenant rep broker before you start touring spaces — ideally before you even identify specific properties. A tenant rep costs you nothing (landlords pay all brokerage commissions), and their market knowledge, comp access, and negotiating experience are worth far more than their commission in most deals.
    What are the biggest red flags in a commercial lease negotiation?
    Key red flags include: landlord refusing to negotiate any lease terms, significant gap between LOI terms and first draft lease, landlord's lender not providing SNDA in a timely manner, building with multiple vacant units and no explanation, pressure to sign before due diligence is complete, and multiple ownership entities with unclear decision-making authority.
    Is a letter of intent binding in commercial real estate?
    Most commercial LOIs include explicit non-binding language stating that neither party is obligated to proceed until a formal lease is fully executed. However, certain provisions within an LOI — such as exclusivity (no-shop) and confidentiality clauses — are typically drafted to be binding even if the deal-specific terms are not.