Can this addendum be e-signed?

Yes. Electronic signatures are valid under the federal ESIGN Act (15 U.S.C. ch. 96) and state UETA statutes where adopted, provided the signers demonstrate intent and consent and the record is retained.

Do I need a notary or witness?

Usually not for commercial addenda. Notarization or witness requirements depend on state law and document type; use local notary rules if the underlying transaction requires acknowledgment.

How should I store the executed addendum?

Retain a copy in your contract repository and backup systems for the retention period applicable to your industry, ensuring version control and access logs are preserved for audits.

What if a signer lacks authority?

Confirm delegated signing authority before execution. If unauthorized signatures occur, consider corrective signature, ratification, or legal review to avoid enforceability challenges.

Are healthcare-related addenda subject to HIPAA?

Yes if the addendum grants access to protected health information; include a Business Associate Agreement and follow 45 CFR §164.530(j) retention rules.

Can I change the addendum after signing?

Post-signature changes require a written amendment signed by authorized parties; do not rely on informal emails to modify material terms.

Electronic Signature
Templates
Project Management
Project Management Services Addendum

Project Management Services Addendum

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

PROJECT MANAGEMENT SERVICES ADDENDUM

Project Identification

Project Title Project ID

Effective Date:

Client Name Client Address for Notices Service Provider Name Service Provider Address for Notices

Recitals

This Project Management Services Addendum (the "Addendum") supplements and modifies any existing agreement between the parties identified above (the "Agreement"). To the extent of any conflict between this Addendum and the Agreement, the terms of this Addendum shall control for the Project identified herein. All other terms of the Agreement remain in full force and effect unless expressly modified here.

Scope of Work

The Service Provider shall perform project management services as set forth below. Services include leadership of planning, scheduling, risk management, change control administration, stakeholder reporting, and coordination of third-party vendors as necessary to achieve the Project objectives.

Detailed Scope of Work Out-of-Scope Items

Deliverables and Acceptance

The Service Provider shall deliver the items described below. Each deliverable shall include the specified acceptance criteria. Client shall accept or reject each deliverable in writing within the acceptance period stated below; failure to timely object shall be deemed acceptance.

Deliverable 1 Title Deliverable 1 Description Deliverable 1 Acceptance Criteria

Target Delivery Date:

Deliverable 2 Title Deliverable 2 Description Deliverable 2 Acceptance Criteria

Target Delivery Date:

Deliverable 3 Title Deliverable 3 Description Deliverable 3 Acceptance Criteria

Target Delivery Date:

Acceptance Period (days after delivery):

Timeline & Milestones

Project Start Date: Project End Date:

Milestones (Title / Description / Target Date)

Budget, Fees & Payment Schedule

Total Project Management Fee: $

Payment Schedule

Standard Payment Terms (days from invoice):

Invoicing Instructions

Change Order Process

All changes to scope, schedule, or budget must be documented and approved by authorized representatives of both parties through a written change order. No work performed pursuant to an unapproved change order shall be chargeable unless subsequently approved in writing.

Change Order Approval Method

Standard Hourly Rate for Approved Change Work: $

Confidentiality

Each party shall keep confidential all non-public information disclosed in connection with the Project and shall not use such information except to perform obligations under this Addendum. This obligation survives termination for a period of three (3) years unless otherwise agreed in writing.

Liability, Indemnity & Insurance

Each party shall indemnify and hold harmless the other from liabilities arising from third-party claims to the extent caused by the indemnifying party's negligence or willful misconduct. The Service Provider shall maintain professional liability insurance in commercially reasonable amounts for the duration of the Project.

Termination

Either party may terminate this Addendum for material breach if the breaching party fails to cure within days after written notice. Either party may terminate for convenience with days' prior written notice; fees for work performed through the effective termination date shall be payable.

Governing Law & Dispute Resolution

This Addendum shall be governed by the laws of the State of without regard to its conflict of laws rules. The parties agree to attempt in good faith to resolve disputes through negotiation prior to commencing formal proceedings.

Notices

Client Notice Contact Provider Notice Contact

Miscellaneous

This Addendum, together with the Agreement, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes prior understandings. No amendment shall be effective unless in writing and signed by authorized representatives of both parties.

Client

Printed Name:

By:

Date:

Service Provider

Printed Name:

By:

Date:

What the Project Management Services Addendum Is

A Project Management Services Addendum is a contractual attachment that defines the scope, responsibilities, schedule, and fees specific to project management work added to a primary services agreement. It clarifies deliverables, project milestones, acceptance criteria, change-order procedures, reporting cadence, and payment terms tied to project performance. The addendum also identifies the project manager, escalation paths, and any subcontracting or third-party resource rules. When properly drafted and signed by authorized parties, it becomes an enforceable part of the main agreement and helps avoid disputes about scope, timing, and cost during execution.

Why a Clear Addendum Matters for Project Execution

A focused addendum reduces ambiguity about who does what, when, and for how much, protecting both client and provider interests while simplifying invoicing and change control. It preserves contract consistency by linking project-level details to the master agreement's governance and remedies.

Who Typically Prepares or Signs This Addendum

Final signatures should come from persons with delegated contract authority to ensure enforceability and timely project start-up.

Clients and sponsors who need to lock in scope, milestones, and acceptance criteria prior to funding or release.
Prime contractors or PMOs that will manage delivery, subcontractors, and quality assurance tasks under the master services agreement.
Legal or procurement reviewers who confirm that amendments align with existing contract terms and corporate policy.

Who Has Signing Authority

Client Signatory

A company officer or individual with written delegation to bind the client must sign. That person should be referenced by job title and authorized amount thresholds to prevent later challenges to authority.

Provider Signatory

An officer or authorized representative of the service provider signs for acceptance. If the provider uses agents or subcontractors, the addendum should state whether countersignatures or notices are required.

Essential Sections to Include in the Addendum

A professional addendum organizes project obligations into discrete, enforceable sections so responsibilities, timing, and payment link clearly to the master agreement.

Scope

Describe deliverables, excluded work, and acceptance criteria. Be specific about outputs (reports, plans, milestones) to avoid scope disputes.

Schedule

List milestone dates, deliverable due dates, and any schedule buffers. Specify consequences for delays, including remedy or liquidated damages if applicable.

Fees

State fixed fees, time-and-materials rates, invoicing frequency, and expense reimbursement rules. Include currency, taxes, and payment terms.

Change Control

Define how changes are proposed, approved, and priced, including documentation, authorization levels, and escalation steps.

Staffing & Subcontracting

Identify key personnel, replacement rules, subcontractor approval requirements, and confidentiality expectations for anyone with access to project data.

Acceptance & Testing

Specify acceptance tests, criteria for success, review periods, and remedies if deliverables fail acceptance.

Required Administrative and Security Details

Project ID: Unique identifier for tracking.

Effective Date: MM/DD/YYYY format.

Parties: Full legal names.

Authorized Signers: Name and title.

Data Access: Role-based permissions.

Confidentiality: NDA reference or clause.

Step-by-Step: Completing a Project Management Services Addendum

Follow these sequential steps to draft, review, and execute an addendum that ties cleanly to the underlying contract.

01

Draft core terms: Write scope, milestones, fees, and acceptance criteria clearly.
02

Attach exhibits: Include schedules, deliverable templates, and resource lists.
03

Legal review: Confirm consistency with master agreement and corporate policy.
04

Execute: Obtain signatures from authorized representatives and distribute fully executed copies.

How to Configure an Online Signing Workflow

Set up a consistent digital workflow to route the addendum for review and signature while preserving an audit trail.

Field	Configuration
Upload document	Use PDF or DOCX, ensure final version uploaded.
Place fields	Signature, date, and initial fields as needed.
Signer order	Set sequential or parallel signing order.
Notifications	Enable email or SMS reminders for signers.

Where the Addendum Goes After Signing

Understand each recipient and destination so archival, billing, and execution obligations are clear after signature.

Signed parties: Each signatory receives a final PDF copy.
Project file: Attach executed addendum to project folder and contract record.
Billing team: Send fee schedule and invoice triggers to accounting.
PMO archive: Store as a governed record for audits.

Methods for Sharing and Executing the Addendum

Use systems integrated with your document management and accounting platforms to ensure consistent storage, version control, and payment triggers.

Email: Common for sending signed PDFs.
Secure portal: Centralizes documents and access control.
eSignature platform: Captures timestamps and audit logs.

Typical Timing and Deadlines to Include

Document the dates that trigger obligations, payments, and review periods to prevent schedule drift and billing disputes.

Effective Date:

Date when the addendum takes legal effect.

Milestone deadlines:

Explicit deliverable dates tied to payments.

Review periods:

Number of days for client acceptance testing.

Invoicing schedule:

Net payment terms such as Net 30.

Dispute notice:

Timeframe to raise claims after delivery.

Common Preparation Mistakes to Avoid

Vague scope language that omits measurable acceptance criteria and creates room for differing expectations.
Failing to tie milestone payments to objective deliverables, which can delay payments and strain relationships.
Using inconsistent party names or titles that complicate signature authority and contract indexing.
Not specifying change control processes, resulting in unmanaged scope creep and disputed charges.

Risks of an Incorrect or Incomplete Addendum

Payment delays: Invoices may be disputed.

Scope disputes: Work may be rejected.

Liability exposure: Unclear remedies increase risk.

Breach claims: Contract termination possible.

Regulatory risk: Industry rules may be violated.

Enforceability: Unsigned changes may be invalid.

eSignature Pricing Comparison (signNow first)

High-level vendor pricing and capability snapshot for executing a Project Management Services Addendum electronically.

	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 by vendor	Varies by vendor	Varies by vendor	Varies by vendor
Bulk Send	Yes	Yes	Yes	Yes	Varies
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No
Envelope Cap	No cap	100 envelopes/user/year	Varies by plan	Varies by plan	Varies by plan

Frequently Asked Questions

Answers to common questions about preparing, executing, and storing a Project Management Services Addendum.

Need help? Contact support

Can this addendum be e-signed?
Yes. Electronic signatures are valid under the federal ESIGN Act (15 U.S.C. ch. 96) and state UETA statutes where adopted, provided the signers demonstrate intent and consent and the record is retained.
Do I need a notary or witness?
Usually not for commercial addenda. Notarization or witness requirements depend on state law and document type; use local notary rules if the underlying transaction requires acknowledgment.
How should I store the executed addendum?
Retain a copy in your contract repository and backup systems for the retention period applicable to your industry, ensuring version control and access logs are preserved for audits.
What if a signer lacks authority?
Confirm delegated signing authority before execution. If unauthorized signatures occur, consider corrective signature, ratification, or legal review to avoid enforceability challenges.
Are healthcare-related addenda subject to HIPAA?
Yes if the addendum grants access to protected health information; include a Business Associate Agreement and follow 45 CFR §164.530(j) retention rules.
Can I change the addendum after signing?
Post-signature changes require a written amendment signed by authorized parties; do not rely on informal emails to modify material terms.

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