How to build a clause extraction table for Lease Amendment Agreements

Build a tenant-side clause extraction table by tracing each amendment instruction through the original lease and intervening amendments, then recording the resulting term, affected premises, operative trigger, and supporting evidence. Keep source language separate from interpretation, and distinguish contractual conditions from facts needed to activate them. The deliverable is a source-linked table showing what changed, what survives, when each change applies, and which uncertainties need resolution before the tenant relies on the extracted terms.

When to use this workflow

Use this workflow when tenant counsel or an in-house real estate team receives an extension, expansion, contraction, relocation, or economic amendment and needs a reliable account of the amended lease. It also supports acquisition diligence and handoffs to lease administration after successive amendments.

The task is extraction and reconciliation—not a complete negotiation, financial model, or notice calendar. Those work products can use the table but should retain its source references and unresolved dependencies.

This guide addresses US commercial leasing. Property location, governing law, mandatory local requirements, contractual wording, and transaction facts affect the analysis. The New York statute below is jurisdiction-specific; the filed agreements illustrate negotiated wording, not nationwide rules or market standards.

What you need

Collect the original lease, every amendment, incorporated exhibits, work letters, commencement certificates, assignments, relevant guaranties, and side letters. Obtain complete versions, including signature pages and premises plans. A rent schedule without its conditions is insufficient.

Also request:

• Execution and delivery records where effectiveness is conditional.
• Evidence of possession, business occupancy, surrender, or work completion where those events activate changes.
• The tenant’s premises list, rent ledger, and expense allocations for comparison—not as substitutes for contractual language.
• The questions the table must answer, such as current rent, replacement-space commencement, renewal rights, or surviving restoration duties.

Assign stable document IDs such as L01, A01, and A02. Record version, date, completeness, and execution status in a document index. Preserve the reviewed files so another reviewer can reproduce the extraction.

Use the template

The companion template is Lease Amendment Agreements — Clause extraction table. You can copy this table into your working document or spreadsheet. Use one row for each distinct change or dependency; link rows when one provision affects several premises or periods.

“Prior wording” should contain a short relevant extract, or a clearly labeled paraphrase, from the previously operative provision and its source. “Amendment operation” distinguishes replacement, deletion, supplementation, and express preservation. A supplement is not necessarily a replacement simply because both provisions concern rent.

“Resulting term” is the reviewer’s consolidated reading, not an executed clause. Label paraphrases and preserve units, defined terms, exceptions, and periods. For long language, retain the controlling extract in a linked source note rather than compressing away qualifications.

“Trigger / evidence” separates the contractual condition from proof that it occurred. “Status / owner / action” explains uncertainty and assigns responsibility. Use stable row IDs, not spreadsheet row numbers alone, so references survive sorting.

Step by step

1. Establish the document chain and review status

Order documents by their stated relationship, not filenames or signature dates. Identify the lease each amendment modifies, missing intermediate amendments, and assignments affecting tenant identity. A payment ledger does not establish that a matching draft became operative.

Check effectiveness separately from signatures. Graybug’s filed amendment conditions effectiveness on both parties’ execution and delivery; submission for examination or signature alone is insufficient under its wording. The filing does not independently establish delivery. (Graybug amendment, § 16)

Record: a document-status row for any gap affecting reliance, including missing evidence and its owner. Label proposed terms separately from terms treated as operative.

2. Map each instruction to the provision it changes

Read operative verbs carefully: replace, delete, add, extend, waive, and confirm do different work. Trace each referenced section through intervening amendments. Check schedules and plans when an instruction changes rentable area or premises boundaries.

Do not assume the newest document overrides everything. Oclaro’s § 15 preserves unmodified provisions and gives that amendment priority over conflicting provisions of the previously amended lease. Extract that contractual hierarchy rather than treating it as a universal interpretation rule. (Oclaro amendment, § 15)

Record: the prior-source pinpoint, operation, and competing instructions. Mark unavailable prior wording as missing instead of reconstructing it from recitals.

3. Divide compound provisions into usable rows

Separate changes with different triggers, spaces, or consequences. A relocation provision may require rows for delivery, replacement-space rent, expense allocation, and surrender of the former space. Link them so related terms are not mistaken for independent benefits.

Extract landlord obligations alongside tenant obligations. Delivery condition, allowance funding, access, and completion commitments may explain when tenant payments begin. Identify the actor, action, condition, and exception within the resulting-term cell.

Record: one decision-useful proposition per row. Keep each condition beside the benefit or burden it qualifies, with linked rows for separately extracted dependencies.

4. Distinguish dates from event-based triggers

Separate signature dates, effectiveness, possession, rent commencement, expiration, and exercise windows. A defined commencement date may not start every obligation.

Graybug’s §§ 4–5 distinguish delivery-based commencement from base-rent commencement. The latter uses the earlier of December 17, 2020 or specified business occupancy. This historical wording illustrates why one extracted date may misstate the arrangement. (Graybug amendment, §§ 4–5)

Identify evidence for each event, such as a delivery certificate, occupancy confirmation, or surrender acknowledgment. Do not substitute an anticipated date for an unverified event or equate equipment installation with business occupancy without checking the wording.

Record: the trigger rule, evidence, unresolved facts, and whether any displayed date is provisional.

5. Extract tenant economics with their limitations

Capture base rent separately from additional rent, expense shares, abatements, credits, deposits, and allowances. Preserve measurement bases and distinguish monthly from annual figures. Label reviewer calculations and retain their contractual inputs.

Read concessions with their conditions. Oclaro’s § 5 conditions base-rent abatements on absence of continuing tenant default, preserves additional rent, and requires repayment of unamortized abatement when tenant default results in termination. This illustrates linked economics, not enforceability or a market norm. (Oclaro amendment, § 5)

Record: the benefit, exclusions, loss or repayment trigger, and linked rows. Do not present conditional abatement as unconditional occupancy-cost savings.

6. Reconcile surviving rights and notice dependencies

Check renewal options, termination rights, restoration duties, assignment restrictions, guaranties, and notice provisions affected by the amendment. A revised expiration date may alter an existing exercise window without restating it.

Oclaro’s amendment separately changes the landlord’s address in § 13 and specifies a written renewal window in § 19(a). The underlying lease remains necessary for other notice mechanics. (Oclaro amendment, §§ 13 and 19(a))

For a New York matter, § 15-301(1) addresses executory changes to written agreements prohibiting oral changes: it requires a writing signed by the party against whom enforcement is sought or its agent. Flag informal-change questions for legal analysis; the statutory text alone is not a complete exceptions analysis. (New York General Obligations Law § 15-301(1))

Record: the surviving source, amended input, notice dependencies, and unresolved interpretation.

7. Validate the table against the source package

Read every resulting term against its cited provisions, definitions, and exhibits. Inspect scans visually, particularly rent tables, handwritten changes, and plans. A finding that language is “not present” must identify the reviewed document and scope; it does not establish absence throughout the lease relationship.

Classify each row as source-verified, awaiting factual evidence, or requiring interpretation. Clear wording can coexist with an unverified trigger.

Record: final status and an owner for every open issue. Preserve the table version and reviewed-document list. A consolidated reading is not an executed lease.

Worked example

Fictional scenario: Alder Quay Analytics LLC leases Suite 300 from Mariner Court Properties LLC. Its invented package contains L01, the original lease; A01, an extension affecting only term; and A02, an effective relocation amendment adding larger Suite 310 and requiring surrender of Suite 300. All parties, documents, amounts, clauses, and records are fictional.

A02 sets Suite 310 rent at $8,400 monthly, beginning on the earlier of business occupancy or March 1, 2027. Section 4 abates its first two rent months if no tenant default continues, excludes additional rent, and requires repayment of unamortized abatement if tenant default causes termination. Section 6 replaces the 6% expense share with 9% only when replacement-space rent has commenced and Suite 300 has been surrendered; 6% continues until both events occur. Delivery is documented, but occupancy and surrender evidence are missing. Abatement amortization details have not yet been extracted.

The table prevents finance from starting every revised charge on delivery. It also avoids treating the abatement as eliminating all charges or estimating a clawback without its amortization terms. Missing facts remain assigned issues, not invented dates.

Common mistakes

• Extracting only A02. Trace material terms through intervening amendments and surviving definitions.
• Treating delivery as rent commencement. Separate each trigger and obtain evidence for each event.
• Combining all space into one rent row. Separate premises and periods with different rates or conditions.
• Dropping concession conditions. Preserve default qualifications, exclusions, and repayment provisions beside the benefit.
• Converting silence into deletion. Identify absence from the amendment, then check whether earlier language survives.

Final quality check

• Every material row has a verified document and clause or page citation.
• Prior wording accounts for intervening amendments.
• Premises labels match plans and defined terms.
• Amounts retain units, periods, and calculation assumptions.
• Triggers remain separate from evidence and provisional dates.
• Conditions and exceptions stay attached to affected rights.
• Open issues are resolved or explicitly assigned; unresolved terms are not presented as confirmed.

Complete the workflow with DecoverAI

DecoverAI is the Legal Intelligence Platform for litigation and transactions. Tabular review supports work across multiple documents. Its contract review supports tenant-specific instructions and findings that quote and locate clauses; due diligence classification can help organize the lease package and prioritize human review. Lawyers retain responsibility for document hierarchy, trigger evidence, and interpretation. To discuss this extraction workflow, book a demo.

Frequently asked questions

Should unchanged clauses appear in the table?

Include them when they explain a changed term or preserve a material tenant right. Define the table’s scope so omitted unchanged clauses are not mistaken for deleted provisions.

What if an intervening amendment is missing?

Record the gap and affected rows. Extract available wording provisionally, but do not confirm a resulting term where the missing amendment could alter it.

Can the table calculate renewal deadlines?

It can hold a reviewer’s calculation once expiration, the exercise window, and notice mechanics are verified. Preserve the source rule, calculation assumptions, and unresolved facts before a calendar handoff.

How should tenant acknowledgments be extracted?

Give no-default statements, releases, ratifications, and as-is acknowledgments distinct rows. Identify their scope and required factual confirmation rather than burying them under miscellaneous terms.

Sources

• New York General Obligations Law § 15-301: jurisdiction-specific written-modification provisions.
• Oclaro Second Amendment to Lease: negotiated hierarchy, abatement, and notice-related provisions.
• Graybug Vision Second Amendment to Lease: negotiated commencement and effectiveness conditions.

This guide is general information about legal workflows, not legal advice for any matter. It was drafted and reviewed with AI assistance. The worked example is fictional. Contract rights and procedure depend on the governing law, the actual wording, and the facts, so check the cited sources and the rules that apply in your jurisdiction before relying on it.