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Legal Date Change Addendum

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LEGAL DATE CHANGE ADDENDUM

This Date Change Addendum ("Addendum") is entered into as of by and between Party A: and Party B: .

Reference is made to that certain agreement identified as dated (the "Original Agreement").

RECITALS

WHEREAS, the parties entered into the Original Agreement and certain dates and deadlines are set forth therein; and

WHEREAS, the parties desire to amend and restate certain date provisions of the Original Agreement in order to reflect changes in scheduling and performance timelines; and

WHEREAS, the parties agree that the modifications set forth in this Addendum shall supersede the corresponding dates in the Original Agreement and shall be binding upon the parties as provided herein.

NOW, THEREFORE, in consideration of the mutual covenants and promises set forth herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1. AMENDMENT TO AGREEMENT DATES

The dates and deadlines set forth in the Original Agreement are hereby amended as follows. Each item below identifies the Original Agreement provision, the original date being replaced, and the new effective date. Except as expressly amended herein, all other terms of the Original Agreement shall remain in full force and effect.

1.1 Amendment 1 — Section/Clause: Original Date: New Date:

1.2 Amendment 2 — Section/Clause: Original Date: New Date:

1.3 Amendment 3 — Section/Clause: Original Date: New Date:

2. EFFECTIVE DATE

This Addendum shall become effective on (the "Effective Date") and, upon such Effective Date, the date provisions of the Original Agreement specified herein shall be deemed amended and of full force and effect as set forth above.

3. NO OTHER AMENDMENTS

Except as expressly amended hereby, the Original Agreement remains unmodified and in full force and effect. This Addendum does not waive, release, or otherwise modify any rights or obligations not specifically amended herein.

4. REPRESENTATIONS AND WARRANTIES

Each party represents and warrants to the other that: (a) it has full corporate or legal power and authority to enter into and perform this Addendum; (b) the execution and delivery of this Addendum and the performance hereof have been duly authorized by all necessary action; and (c) this Addendum constitutes a valid and binding obligation enforceable against such party in accordance with its terms.

5. CONSIDERATION

The parties acknowledge and agree that the mutual promises, covenants and agreements contained in this Addendum constitute sufficient and valuable consideration for the amendments set forth herein.

6. NOTICES

All notices, requests, consents and other communications required or permitted under this Addendum shall be in writing and shall be delivered to the addresses set forth below or to such other address as a party may designate by notice in accordance with this section.

7. COUNTERPARTS; ELECTRONIC DELIVERY

This Addendum 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. Signatures delivered by electronic transmission or facsimile shall be treated as original signatures for all purposes.

8. GOVERNING LAW

This Addendum shall be governed by and construed in accordance with the laws of the State of without regard to principles of conflicts of law.

9. ENTIRE AGREEMENT

This Addendum, together with the Original Agreement (as amended by this Addendum), contains the entire understanding of the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements and understandings, whether written or oral, relating to such subject matter.

10. SEVERABILITY

If any provision of this Addendum is held to be invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

11. AMENDMENT; WAIVER

No amendment or modification of this Addendum shall be effective unless in writing and signed by authorized representatives of both parties. No waiver of any provision of this Addendum shall be deemed a waiver of any other provision or of any subsequent breach.

First Party:

By:

Date:

Second Party:

By:

Date:

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What a Legal Date Change Addendum Is

A Legal Date Change Addendum is a short, written amendment that modifies one or more dates in an existing contract—commonly the effective date, termination date, or milestone deadlines. It references the original agreement, states the specific date change, explains the reason for the amendment, and preserves the remainder of the original terms unless explicitly altered. Parties sign the addendum to demonstrate mutual consent. The addendum may be executed on paper, by remote online notarization where permitted, or electronically under U.S. e‑signature law when statutory exceptions do not apply.

Why Parties Use a Date Change Addendum

A date change addendum clarifies intent, avoids ambiguity about performance windows, preserves the original contract’s terms, and creates an evidentiary record of the parties’ agreement to new timing.

Why Parties Use a Date Change Addendum

Typical Users and Roles That Prepare This Addendum

Organizations and individuals who manage contracts or time‑sensitive obligations commonly prepare date change addenda to keep records accurate.

  • Contract managers and procurement teams who adjust delivery or milestone dates during project changes.
  • Real estate brokers and property managers changing lease start or move‑out dates for tenants.
  • Legal counsel and business owners formalizing agreed timing revisions to avoid later disputes.

All signing parties should confirm authority to amend the contract and preserve a signed copy for compliance and audit purposes.

Essential Fields Every Addendum Should Include

Effective Date: New date in MM/DD/YYYY format
Original Agreement: Reference title and original date
Party Names: Full legal names as in original
Change Description: Concise statement of what changes
Signature Blocks: Printed name, signature, date
Notary Acknowledgment: If the original required notarization

Step‑by‑Step: Completing and Executing the Addendum

Follow a consistent sequence to ensure the addendum is valid, clear, and enforceable for all parties.

  • 01
    Identify the Contract: Cite original title and execution date
  • 02
    Specify the Change: State old date and the new replacement date
  • 03
    Confirm Authority: Verify each signer can bind their party
  • 04
    Sign and Date: All parties sign using the chosen method

Configuring an Online Workflow for This Addendum

Set up an electronic workflow that enforces field completion, signer order, and authentication appropriate to the document’s legal risks.

Field Configuration
Authentication Email link or SMS code; use stronger ID for high risk
Signature Order Sequential or parallel based on negotiation needs
Conditional Fields Show notary block only when required
Notifications Auto‑notify parties and send final copies

Where to Send and File the Executed Addendum

After execution, route the signed addendum to parties, maintain a central record, and file with any recorder or registry when required.

  • Return to Parties: Provide signed PDF to all signatories
  • Contract Repository: Store original with the primary agreement
  • Recorder/County Clerk: Record only if original required recording
  • Legal Counsel: Send for retention and compliance review

Delivery Options and Technical Requirements

Choose distribution channels and file formats that meet recordkeeping and authentication needs.

  • Supported Formats: PDF, DOCX, and native templates
  • Integrations: CRM and cloud storage connectors
  • Authentication: Email link, SMS code, KBA, or SSO

Ensure the platform preserves an audit trail (timestamps, IP, signer emails) and stores a tamper‑evident copy in your records repository.

Common Timing Items to Track

Document revisions often create new deadlines. Track signing windows, recording timeframes, and any regulatory reporting tied to the change.

Signing Deadline:

Date by which all parties must sign

Effective Date:

Date the amendment takes legal effect

Recording Window:

If applicable, file with county clerk within required timeframe

Tax Reporting Impact:

Adjust any tax filing dates if change affects tax year

Document Retention Start:

Retention begins on execution or effective date

Key Processing Milestones

Track milestone steps from drafting through final retention to ensure compliance with operational and legal timelines.

01

Draft and Review

Finalize language and confirm party intent

02

Authorize Signers

Confirm signing authority and roles

03

Execute Addendum

Signatures gathered via chosen method

04

Record & Store

Record if needed and archive final copy

Common Mistakes to Avoid

  • Failing to reference the original agreement precisely, which can create ambiguity about which document is amended and who is bound.
  • Not confirming signer authority or title, risking later claims that the addendum was not binding on an organization.
  • Misstating date formats or using ambiguous language like "on or about," which can lead to differing interpretations in disputes.
  • Omitting required notarization or recording steps when the original contract or state law requires them, potentially invalidating the amendment.

Consequences of an Incorrect or Incomplete Addendum

Unenforceability: May be found invalid
Contract Disputes: Leads to litigation or arbitration
Tax Exposure: Incorrect reporting or penalties
I-9 Risk: Employment forms may become noncompliant
Notarization Defect: Recordation or probate issues
Fraud Allegations: Credibility and legal exposure

Practical Examples of Date Change Addenda in Use

Real users adapt the addendum to close timing gaps quickly while preserving the underlying agreement’s terms.

Optica Ventures (Brian Fitzgibbons)

Company needed a short extension for a service milestone due to supply delays.

  • The addendum extended the milestone by 30 days.
  • Brian noted the interface was easy for customers and team members, allowing a signed amendment to be returned quickly and retained with the original contract for audits.

Martin Properties (Tim Martin)

A lease start date changed after tenant scheduling conflicts.

  • The addendum adjusted the move‑in date and clarified rent proration.
  • Tim reported executing the amendment online maintained compliance, provided a clear record for property files, and kept the leasing process on schedule.

Practical Tips for Accurate, Efficient Completion

Follow these practices to reduce errors, streamline execution, and preserve enforceability when drafting or signing a date change addendum.

Reference the Original Agreement Clearly
Cite the agreement title, execution date, and section being amended. Clear cross‑references remove ambiguity and help reviewers locate the governing provisions quickly.
Use Unambiguous Date Formats
Enter dates as MM/DD/YYYY and state whether a date is inclusive or exclusive to avoid differing interpretations between parties or courts.
Confirm Signatory Authority in Writing
Have corporate signers assert their title and authority; for organizations, attach a board resolution or certificate if internal policy requires.
Preserve an Audit Trail for Electronic Signing
Capture signer identity, timestamps, and IP addresses. For sensitive contexts, choose stronger authentication or remote notarization where authorized by state law.

Comparing eSignature Vendors for Executing an Addendum

Choose a provider that supports the authentication, audit trail, and compliance obligations required for your addendum; key pricing and capabilities are summarized below.

signNow DocuSign Adobe Sign PandaDoc HelloSign
Starting Price $8/user/mo $15/user/mo $14/user/mo $19/user/mo $15/user/mo
Free Trial 7‑day free trial Varies Varies Varies Varies
Bulk Send Yes Yes Yes Yes Yes
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Frequently Asked Questions and Troubleshooting

Answers to common execution and validity questions to help you avoid pitfalls when preparing or signing a date change addendum.


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