1. Purchase Price Adjustment: Required when the addendum modifies the original purchase price or payment terms

2. Closing Date Modification: Used when changing the original closing date or related timelines

3. Property Description Update: Needed if there are any changes to the property description or included items

4. Conditions Precedent: Required when adding or modifying conditions that must be met before closing

5. Lex Koller Compliance: Required when the addendum involves foreign buyers or changes that might affect Lex Koller compliance

6. Mortgage Provisions: Included when the addendum affects existing or new mortgage arrangements

7. Tax Implications: Added when the modifications have specific tax consequences that need to be addressed

8. Insurance Requirements: Used when modifying insurance requirements or responsibilities

1. Schedule A - Modified Terms: Detailed listing of all specific terms being modified from the original agreement

2. Schedule B - Updated Property Details: Any changes to property specifications, boundaries, or included items

3. Schedule C - Revised Payment Schedule: If applicable, updated payment terms and schedules

4. Schedule D - Modified Closing Requirements: Changes to closing requirements or procedures

5. Appendix 1 - Updated Due Diligence Documents: Any new or modified due diligence materials related to the changes

6. Appendix 2 - Regulatory Approvals: Copies of any required new regulatory or municipal approvals

7. Appendix 3 - Updated Property Plans: Modified property plans or surveys if relevant to the changes

8. Appendix 4 - Notarial Requirements: Specific cantonal notarial requirements for the addendum