| name | lease-amendment |
| title | Lease Amendment Agreement |
| description | Drafts lease amendment agreements that modify specific provisions of existing commercial or residential leases while preserving the original agreement's enforceability. Handles rent modifications, term extensions, use changes, maintenance reallocation, and new provisions. Trigger when drafting lease amendments, modifications, addenda, or change agreements for real estate transactions. |
| author | CaseMark |
| author_url | https://github.com/CaseMark/skills/tree/main/skills/legal/lease-amendment |
| license | Apache-2.0 |
| version | 0.1.0 |
| execution_mode | open |
| jurisdiction | us |
| practice | real-estate |
| language | en |
| tags | ["agreement","drafting","transactional"] |
Lease Amendment Agreement
Modifies specific provisions of an existing lease while preserving enforceability of the original agreement. Avoids novation.
Prerequisites
Gather before drafting:
- Base lease — executed original with date, parties, property description, term, material provisions
- Prior amendments — all previous amendments in sequence (for numbering and cumulative-effect tracking)
- Modification instructions — terms changing and business purpose
- Party authority — capacity confirmation; any name changes, mergers, or restructurings since execution
- Jurisdiction — governing state for execution formalities, recording requirements, substantive law
Quick Start
- Collect base lease, prior amendments, and modification instructions
- Verify party names and authority match current status
- Draft amendment following the output structure below
- Include ratification + conflict-resolution + integration clauses
- Match execution formalities to original lease and jurisdiction requirements
Output Structure
1. Preamble & Party Identification
- Amendment number: sequential (First, Second, etc.) based on prior amendment count
- Execution date: full date
- Original lease reference: execution date, property address with legal description, recording info if recorded
- Party names: exact spelling from original lease — full legal name, entity type, state of formation
- Name changes/mergers: address explicitly with documentation references if any party changed
2. Recitals
- Reference original lease and all prior amendments by date
- Confirm original lease remains in full force and effect
- State business purpose (without creating unintended obligations)
3. Amendment Provisions
For each modification, use this pattern:
Section [X] of the Original Lease, entitled "[Title]," is hereby [deleted in its entirety / deleted and replaced with the following / supplemented with the following additional language]: [New provision text]
Rent modifications:
- New amount, effective date, base vs. additional rent
- Phase-in schedule if incremental
- Impact on late fees, grace periods, payment methods
