Signature Block Validity Review

Use when verifying that a contract's signature pages and execution mechanics are legally valid before or after signing. Checks signatory authority, capacity description, entity name accuracy (including Arabic), witness requirements, date consistency, counterparts clauses, cross-border authentication (apostille, legalization), e-signature validity, common seal, and page initialing requirements. Applies across MENA and international jurisdictions with jurisdiction-specific execution rules.

Signature Block Validity Review

When to use this

Use this skill as a pre-execution checklist before a contract is signed, or as a post-execution audit to confirm a signed agreement is legally binding. Invalid execution is a surprisingly common source of disputes — a contract signed by an unauthorized person, missing witnesses, or with an incorrect entity name may be void or voidable.

Triggers:

  • Before sending a contract for execution — confirm the signature block is correctly structured
  • Before relying on a counterparty's signed document — verify their execution was valid
  • M&A due diligence — confirm that material contracts were validly executed
  • Enforcement proceedings — confirm that the contract being enforced was properly signed

Inputs

InputWhy it mattersDefault
Contract document (ideally signed copy)To assess execution formalitiesRequired
Jurisdiction(s)Execution requirements differ substantiallyFrom governing-law clause or place of execution
Entity typeCompany, partnership, government entity, natural person, trusteeFrom signature block or contract body
Authorization documentsBoard resolution, power of attorney, commercial registrationRequest if not provided

Review Checklist

Check 1 — Signatory Authority

The person signing must have authority to bind the entity. Authority flows from:

  1. Statutory authority: directors, managing directors, CEOs, and similarly named officers typically have implied authority under corporate law to bind the company for commercial contracts
  2. Board resolution / corporate authorization: for significant contracts (value threshold varies by jurisdiction), a board resolution authorizing the specific agreement is needed
  3. Power of Attorney (POA): if signing by proxy — verify the POA: (a) is validly executed; (b) has not expired; (c) covers the specific act (signing this type and value of contract); (d) was issued in the correct form for the jurisdiction

Documents to request if authority is not obvious:

  • Commercial Registration (CR) extract showing officers/directors and their authority
  • Board resolution or written unanimous consent authorizing the agreement
  • Delegation matrix if the signatory is below C-suite level
  • POA document (if signing under power of attorney) with notarization/apostille as required

Flag: if the signatory is identified as "Authorized Signatory" but no authorization document is attached — the counterparty may challenge enforceability if a dispute arises.

Check 2 — Capacity / Title Accuracy

The capacity block (title printed below the signature line) must accurately describe the signatory's role:

  • Correct: "Director", "Chief Executive Officer", "Managing Director", "Authorized Signatory (per POA dated [X])"
  • Flag: vague descriptions such as "Representative" or "Agent" without specification of the authority basis
  • For POA signatories: capacity block should read: "Attorney-in-Fact pursuant to Power of Attorney dated [date], notarized by [notary], reference [number]"

Check 3 — Entity Name Accuracy

The entity name in the signature block must match the Commercial Registration (CR) / equivalent registration document exactly, including:

  • Exact legal name (not a trade name / DBA)
  • Entity type suffix (LLC, PJSC, BSC, SPC, SAL, SAE, GmbH, Ltd., etc.)
  • Arabic version where required (many MENA jurisdictions require the Arabic registered name)

MENA-specific:

  • UAE: the Arabic name must match exactly as it appears on the CR issued by the Department of Economic Development (DED) or the relevant free-zone authority (DIFC Registrar, ADGM Registration Authority)
  • KSA: Arabic entity name is legally controlling; English transliteration is for convenience only
  • Lebanon: SAL (Société Anonyme Libanaise) or SARL must be accurately described; Ministry of Finance registration number may be included
  • Egypt: SAE (Société Anonyme Égyptienne) registration with GAFI should match

Flag: any discrepancy between the contract entity name and the CR — even minor differences (dropped "LLC", different transliteration) can create enforceability arguments.

Check 4 — Witness Requirements

Some jurisdictions require witnesses to contracts or to specific types of clauses:

JurisdictionWitness requirement
UAE (onshore)Certain commercial documents and real estate transfers require 2 witnesses; employment contracts and lease agreements may require witnesses
KSACertain contracts benefit from notarization by a كاتب عدل (Kātib 'Adl — notary public); witness blocks are customary for significant commercial agreements
LebanonNotarization (Tawqi3i at Notaire) is required for real estate transfers; customary but not always required for commercial contracts; strongly recommended for security documents
DIFC / ADGMNo general witness requirement for commercial contracts; English-law approach
UKDeeds (as opposed to simple contracts) require a witness; if a contract is executed as a deed (for lack of consideration, or to achieve 12-year limitation period), witness is mandatory
USMost commercial contracts: no witness requirement; notarization required for real estate deeds and certain statutory filings

Flag: witness block absent where required; witness is a party to the contract (generally disqualifies the witness in many jurisdictions); witness description (name, ID, contact) missing.

Check 5 — Date Consistency

Execution issues:

  • All parties should have the same execution date, or if different dates, the agreement should specify which party's date is the "Effective Date"
  • Backdating: a contract dated earlier than its actual execution date is problematic — may be void for fraud; may affect limitation periods; may conflict with contemporaneous documents
  • Future dating: acceptable if the agreement is intended to take effect on a future date, but the execution date should still reflect when signatures were applied

Gregorian / Hijri date handling:

  • In Saudi Arabia, some official documents use Hijri dates; for commercial contracts, both Gregorian and Hijri dates are commonly included
  • Verify that any date conversion is accurate — calendar conversion errors create ambiguity about when obligations commenced

Check 6 — Counterparts Clause

If parties are signing in different locations (common in cross-border deals), the contract should contain a counterparts clause:

  • "This Agreement may be executed in counterparts, each of which shall be deemed an original, and all of which together shall constitute one and the same instrument"
  • Without this clause, a party might argue that only a single physical document with all signatures is binding
  • In PDF/e-signature scenarios: add that electronic counterparts are valid (unless e-signature is not accepted — see Check 9)

Check 7 — Cross-Border Authentication (Apostille / Legalization)

When a contract executed in one country needs to be used or enforced in another:

ScenarioRequirement
UAE executing a contract to be used in FranceUAE is Apostille Convention member (acceded 2021); UAE documents can be apostilled by UAE Ministry of Foreign Affairs (MOFA)
Saudi Arabia (not an Apostille member)Documents must be notarized + attested by KSA MOFA + attested by the embassy of the destination country
LebanonLebanon is an Apostille Convention member; Lebanese documents can be apostilled by the Lebanese MOFA
EgyptEgypt is an Apostille Convention member (acceded 2022); documents apostilled by the Egyptian MOFA
UK contract used in UAEUK documents: apostille from UK FCO + MOFA attestation in UAE

Flag: cross-border contracts where the authentication chain is incomplete — the document may be inadmissible in the foreign jurisdiction's courts.

Check 8 — Electronic Signature Validity

E-signatures are accepted in most jurisdictions but with different conditions:

JurisdictionE-signature validity
UAEFederal Law No. 46 of 2021 on Electronic Transactions and Trust Services: e-signatures valid for commercial contracts; exceptions include property transfers, wills, family law matters
DIFCDIFC Electronic Transactions Law: e-signatures valid
ADGMADGM e-signatures valid
KSAE-signatures recognized under the Anti-Cyber Crime Law and Electronic Transactions Law; notarized documents still require wet ink + notary
LebanonElectronic signatures recognized under Law No. 81 of 2018 on Electronic Transactions; certain contracts (real estate, commercial registration) require wet ink
FranceQualified Electronic Signatures (QES) under eIDAS regulation have full legal effect; simple e-signatures may be challenged for high-value contracts
UKE-signatures valid for most contracts under Electronic Communications Act 2000; deeds require wet ink or very specific e-sign process

Flag: e-signature used for a category of document that requires wet ink; e-signature platform used is not certified to the required trust level (e.g., QES required but only Advanced Electronic Signature obtained).

Check 9 — Common Seal

Older requirements:

  • Lebanon (older SAL companies): some articles of incorporation require the company seal to be affixed
  • KSA: company seal (ختم) is customary and provides practical enforceability signal; not always strictly legally required but strongly recommended
  • UK pre-2006: common seal requirement largely abolished by Companies Act 2006; now optional
  • UAE: company seal still commonly affixed as a practical matter, though not strictly required for all contract types

Check 10 — Page Initialing

  • UAE and many MENA practice: initialing each page by both parties' signatories is customary but not a strict legal requirement for validity
  • However: initialing provides strong evidence that the pages initialed were part of the agreement as at the date of signing — important protection against substitution of pages
  • Check: if a contract is long (over 10 pages) and is not initialed page by page, a party might argue that pages were substituted after execution. Recommend initialing in any contested or high-value deal.

Output Format

{
  "issues": [
    {
      "signatory": "<name / entity>",
      "check": "<check number and title>",
      "problem": "<description>",
      "severity": "critical|high|medium|low",
      "remediation": "<action required>"
    }
  ],
  "overall_execution_validity": "valid|defective|void",
  "authentication_complete": true/false,
  "e_signature_valid": true/false/null,
  "critical_issues_count": <int>
}

Common Mistakes

  • Relying on a title like "CEO" without a board resolution for contracts above the officer's standard authority threshold
  • Accepting an English-only entity name for a MENA counterparty whose CR is in Arabic — the English name may not be a registered name at all
  • Failing to check that a POA covers the specific type of transaction being signed (a general commercial POA may not cover real estate or IP assignments)
  • Ignoring Hijri/Gregorian date conversion errors — they can cause genuine ambiguity about notice periods and limitation start dates

Related Skills

  • [[review-missing-clauses]]
  • [[review-nda-quick-check]]
  • [[review-msa-deep-review]]
  • [[review-risk-flagging]]
  • [[draft-power-of-attorney]]

Last updated: October 13, 2026

Files (2)

Jurisdiction
General
Practice area
Contracts
License
MIT
Author
sboghossian
Source
general/contracts/skills/review-signature-block-validity-sboghossian

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