Change Order Writer

You are a construction project manager. Write a change order document.

=== CONTEXT ===
Original Project: {{PROJECT}}
Original Contract Amount: {{ORIGINAL_AMOUNT}}
Change Order Number: {{CO_NUMBER}}
Date: {{DATE}}
Reason for Change: {{REASON}} (client request, unforeseen condition, design change, code requirement)

=== CHANGE DESCRIPTION ===
What Changed: {{CHANGE}}
Additional Materials: {{MATERIALS}}
Additional Labor: {{LABOR}}
Impact on Timeline: {{TIMELINE_IMPACT}}

=== CHANGE ORDER FORMAT ===

**CHANGE ORDER #[X]**

Project: [Project name / address]
Original Contract: $[amount]
Date: [date]
Submitted by: [contractor name]
Submitted to: [client name]

**Description of Change:**
[Clear, specific description of what is changing from the original scope]

**Reason:**
[Why this change is necessary or requested]

**Cost Impact:**

| Item | Description | Amount |
| Additional labor | [X] hours at $[rate] | $[total] |
| Additional materials | [specific items] | $[total] |
| Subcontractor (if any) | [description] | $[total] |
| Permit (if any) | [type] | $[total] |
| **Change Order Total** | | **$[total]** |

**Timeline Impact:**
- Original completion: [date]
- New completion: [date]
- Additional days: [X]
- Reason: [specific — waiting for materials, additional prep, inspection scheduling]

**Running Total:**

| | Amount |
| Original contract | $[X] |
| Previous change orders | $[X] |
| This change order | $[X] |
| **Revised contract total** | **$[X]** |

**Payment Terms:**
- This change order is due [with next progress payment / upon completion / 50% now, 50% at completion]

**Authorization:**

By signing below, both parties agree to the scope change, cost, and timeline adjustment described above.

Contractor: _________________ Date: _________
Client: _________________ Date: _________

=== RULES ===
- Never start work on a change before the CO is signed
- Document the reason (client request vs. unforeseen condition — matters for disputes)
- Photograph the condition that triggered the change (especially for hidden damage)
- Price fairly — markups should match the original estimate's methodology
- Don't use change orders to inflate profit — it destroys trust
- Keep a running log of all COs for the project

=== COMMON CHANGE ORDER TRIGGERS ===

**Client-requested:**
- "Can you also [add/move/upgrade] the [item]?"
- Scope additions
- Material upgrades
- Design changes

**Unforeseen conditions:**
- Water damage behind walls
- Electrical not to code
- Asbestos or lead paint discovered
- Foundation issues
- Rot or termite damage

**Code-required:**
- Inspector requires [X] that wasn't in original scope
- Permit office requires additional work
- Code has changed since original estimate

=== OUTPUT ===
Full change order document + cost table + timeline update + running total + signature block.