Prompt Details
Model
Chat - (gpt-5.6)
Token size
3,381
Example input
[ORIGINAL LEASE]: COMMERCIAL LEASE AGREEMENT Landlord: Harborview Properties LLC Tenant: Meridian Office Solutions, Inc. Premises: Suite 410, 2450 Market Center Drive Section 3.1 — Initial Term The initial term of the Lease begins on January 1, 2024 and expires on December 31, 2028. Section 4.1 — Base Rent Base Rent shall be $18,500 per month during Lease Year 1. Beginning January 1, 2025, Base Rent shall increase by 3% on each annual anniversary date of the Commencement Date. Section 5.2 — Operating Expenses Tenant shall pay Tenant's Proportionate Share of Operating Expenses as Additional Rent. "Operating Expenses" include costs and expenses described in Section 5.2. Section 7.3 — Renewal Option Provided Tenant is not in default beyond any applicable cure period, Tenant may exercise one option to extend the Term for an additional five-year period by written notice delivered to Landlord not less than nine months before expiration of the Initial Term. Section 12.4 — Notices Any notice required under this Lease shall be in writing and delivered to the addresses stated in Section 12.4.
[PROPOSED OR EXECUTED AMENDMENT]: FIRST AMENDMENT TO COMMERCIAL LEASE This First Amendment modifies the Commercial Lease dated January 1, 2024. 1. Amendment to Section 4.1 — Base Rent Effective January 1, 2026, the monthly Base Rent stated in Section 4.1 is amended from the amount otherwise determined under Section 4.1 to $20,250 per month. 2. Amendment to Section 7.3 — Renewal Option The notice period for exercise of the renewal option is amended from nine months to six months before expiration of the Initial Term. 3. Amendment to Section 12.4 — Notices Tenant's notice address is changed to: Meridian Office Solutions, Inc. Attn: Legal Department 7800 Riverfront Parkway Suite 600 Brookfield, NY 10000 All other terms and conditions of the Lease remain unchanged.
Example output
# CHANGE IMPACT MATRIX
### Input validation / source limitation
The supplied record contains the original-lease text for Sections **3.1, 4.1, 5.2, 7.3, and 12.4**, plus the First Amendment. Both the original lease and amendment are therefore available for the supplied review.
No pages, exhibits, schedules, riders, or other referenced lease components were supplied. Accordingly, the dependency review is limited to the contractual text actually provided. No missing contractual text has been reconstructed.
| Change ID | Amendment Location | Original Provision | Changed Provision | Change Type | Textual Reference / Dependency | Related Lease Provision | Operational Area | Evidence | Potential Textual Conflict | Evidence Status | Human Review Note |
| --------- | ---------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------- | ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| C-001 | First Amendment §1 — Amendment to Section 4.1 | **§4.1 — Base Rent:** Base Rent is $18,500/month during Lease Year 1; beginning January 1, 2025, Base Rent increases by 3% on each annual anniversary of the Commencement Date. | Effective **January 1, 2026**, the monthly Base Rent is amended to **$20,250**, replacing the amount otherwise determined under §4.1. | Modification / replacement | Directly modifies **§4.1** and expressly refers to the amount otherwise determined under that section. | **§4.1 — Base Rent** | Rent | Amendment §1: “Effective January 1, 2026, the monthly Base Rent stated in Section 4.1 is amended from the amount otherwise determined under Section 4.1 to $20,250 per month.” Original §4.1 contains the prior rent and annual-increase language. | The amendment states a specific 2026 amount, while the original §4.1 continues to contain an annual 3% increase mechanism. The supplied text does not expressly state how the unchanged annual-increase language is to interact with the amended 2026 amount for periods after January 1, 2026. | Direct Evidence | Human legal review may be appropriate to determine the intended textual interaction, particularly for the treatment of future annual increases after the amended 2026 amount. No legal effect is determined here. |
| C-002 | First Amendment §2 — Amendment to Section 7.3 | **§7.3 — Renewal Option:** Tenant may exercise one five-year extension option by written notice delivered not less than **nine months before expiration of the Initial Term**, subject to the stated default condition. | The renewal-option notice period is amended from **nine months to six months** before expiration of the Initial Term. | Modification / replacement | Directly modifies the notice-period language in **§7.3**. The phrase “expiration of the Initial Term” textually connects the notice period to the Initial Term stated in §3.1. | **§3.1 — Initial Term** | Options / Term | Amendment §2: “The notice period for exercise of the renewal option is amended from nine months to six months before expiration of the Initial Term.” Original §7.3 contains the nine-month period; original §3.1 states the Initial Term expires December 31, 2028. | No apparent textual inconsistency is stated between the amendment and §3.1. The amendment changes the measurement period while leaving the stated Initial Term text unchanged. | Direct Evidence / Supported Relationship | Confirm during professional review that the intended amendment is limited to the notice-period change and that the remaining §7.3 conditions are unchanged, as the supplied amendment states. |
| C-003 | First Amendment §2 — Amendment to Section 7.3 | **§7.3 — Renewal Option:** One five-year extension option; exercise requires written notice and is subject to the stated default condition. | Only the notice period changes from **nine months** to **six months**; no amendment text changes the five-year extension period or the stated default condition. | Modification | The amendment expressly identifies only the notice-period component of §7.3. The remaining §7.3 language appears outside the stated change. | **§7.3 — Renewal Option** | Options | Original §7.3 states the five-year option and default condition. Amendment §2 changes only the notice period. | No supported textual conflict identified within the supplied §7.3 text. The amendment does not supply replacement language for the other §7.3 terms. | Direct Evidence | Professional review may confirm that the unchanged portions of §7.3 are intended to remain operative under the amendment. This is not a conclusion about legal effect. |
| C-004 | First Amendment §3 — Amendment to Section 12.4 | **§12.4 — Notices:** Any required notice under the Lease shall be in writing and delivered to the addresses stated in §12.4. | The Tenant's notice address is changed to: **Meridian Office Solutions, Inc.; Attn: Legal Department; 7800 Riverfront Parkway; Suite 600; Brookfield, NY 10000.** | Substitution / modification | Directly modifies the Tenant's notice address within **§12.4**. The original §12.4 expressly states that required notices are delivered to the addresses stated in that section. | **§12.4 — Notices** | Notices / Administration | Amendment §3 provides the replacement Tenant address. Original §12.4 establishes the notice-address function of that section. | The supplied original text does not reproduce the prior Tenant notice address. It is therefore not possible from the supplied record to compare the old and new address text or determine whether the Tenant's address is repeated elsewhere in the lease. | Direct Evidence / Insufficient Evidence for broader consistency review | Human review may be appropriate to verify consistency of the new address across any other notice provisions, exhibits, schedules, or incorporated lease components not supplied here. |
## Key controlled findings
**Three direct amendment changes are observable:** Base Rent, renewal-option notice period, and Tenant notice address.
The **Base Rent change has the clearest unresolved textual interaction** because the original §4.1 contains an ongoing annual 3% increase mechanism while the amendment establishes a specific $20,250 monthly amount effective January 1, 2026. The supplied text does not expressly resolve how those two provisions interact after that date.
The **renewal-option change is textually connected to the Initial Term** because §7.3 measures the notice period by reference to expiration of the Initial Term, which §3.1 states expires December 31, 2028. No additional supported dependency was identified in the supplied text.
For the **notice-address change**, §12.4 is the direct and supported dependency. Because the prior address and the remainder of the lease are not supplied, broader address-consistency checking remains **insufficiently evidenced**.
No supported textual dependency was identified between these amendments and the supplied **§5.2 Operating Expenses** provision. A general commercial relationship between rent and operating expenses would not, by itself, establish a documentary dependency.
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GPT-5.6
Compare an original commercial lease with a proposed or executed amendment to identify textual changes, trace cross-references and dependencies, map potentially related provisions, and flag possible inconsistencies. Receive a structured Change Impact Matrix with source evidence, locations, evidence status, and human review notes. Designed to preserve uncertainty and distinguish documentary findings from legal interpretation. Does not determine legal effects, enforceability, liability, or contrac
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