1. Condition Precedents: Used when the purchase is subject to certain conditions being met before completion

2. Intellectual Property Rights: Required when the purchase involves items with associated IP rights

3. Compliance with Regulations: Necessary for regulated items or when specific regulatory requirements apply

4. Insurance: Include when specific insurance requirements are needed during transit or transfer

5. Confidentiality: Important when the transaction involves sensitive information

6. Assignment: Include when transfer rights need to be specifically addressed

7. Force Majeure: Optional clause for handling unforeseen circumstances

8. Inspection Rights: Important for purchases where pre-delivery inspection is relevant

9. Return Policy: Particularly relevant for consumer purchases or specific types of goods

1. Technical Specifications: Detailed technical description of the purchase object

2. Inventory List: If multiple items are being purchased, detailed list with descriptions

3. Condition Report: Particularly for used items, documenting current condition

4. Payment Schedule: If payment is in installments, detailed payment timeline

5. Delivery Schedule: If multiple deliveries are involved, detailed delivery timeline

6. Photographs: Visual documentation of the purchase object

7. Certificates: Any relevant certificates of authenticity, origin, or quality

8. Maintenance Records: For used items, history of maintenance and repairs