Write the next sentence in the following story.

How to write a legal contract
Determine whether you need a contract.
If you are exchanging something of significant value with someone, such as your labor or services, intellectual property, or material goods, you should have a contract in place.
For many people, common situations that involve contracts include purchasing a home, selling or buying a car, or beginning employment.
Other common situations could include hiring a construction crew to remodel your house, offering your services for a certain period of time, or publishing a creative work, such as a book. Be aware of the basic requirements of all contracts.