Reference Clause
Cite the original agreement by title and effective date and state that the addendum is intended as a modification rather than a replacement of that agreement.
An addendum creates a clear, narrowly scoped record of agreed changes so parties avoid reopening the full contract. It reduces ambiguity, preserves continuity of duties and billing, and documents mutual consent to modifications that courts and regulators can enforce when properly executed.
Signatures should come from the authorized individuals named in the original agreement or their authorized corporate signatories to prevent execution disputes.
Cite the original agreement by title and effective date and state that the addendum is intended as a modification rather than a replacement of that agreement.
Use precise wording such as 'Section X of the Agreement is amended to read...' and include the exact text being added, removed, or replaced.
Specify the effective date of the amendment and indicate whether changes apply retroactively, prospectively, or for a limited term.
Describe fee adjustments, billing cycles, reimbursement of expenses, and any performance-based incentives or caps in clear numeric terms.
Attach any schedules, property lists, or work orders as numbered exhibits and reference them within the addendum for clarity.
Include printed name, title, entity name, and signature lines for each party; indicate whether notarization or witness signatures are required.
| Field | Setting | Recommended |
|---|---|
| Signer Order | Sequential | Owner then Manager |
| Authentication | Email or SMS | Email + SMS for higher assurance |
| Reminders | Automated | 3 reminders over 14 days |
| Storage Location | Document repository | Encrypted cloud archive |
Ensure the solution preserves an audit trail, supports required authentication, and archives executed addenda per retention rules.
Set as MM/DD/YYYY and state whether changes are retroactive or prospective.
Specify a cutoff (for example, 30 days) to avoid ambiguity about acceptance.
Observe any contractual notice requirements before implementing managerial changes.
If the addendum affects recorded instruments, allow lead time for clerk processing.
Retain executed copies according to legal and tax retention schedules.
Prepare amendment text and attach referenced exhibits.
Legal and finance review language for compliance and tax impact.
Collect signatures from authorized signatories and notarize if required.
Send executed copies to all parties and update contract repository.
| 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 | No | No | Yes, limited | Yes, limited |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| Envelope Cap | No cap | 100 envelopes/user/year | Varies | Varies | Varies |
Tim Martin, founder, streamlined amendments into a single online workflow to sign changes remotely
Optica Ventures used online signatures to formalize fee adjustments across multiple properties