Not in the US in many cases. Take the Uniform Commercial Code, for example, which requires a written contract for the sale of goods over $500, or agreements creating a security interest.
But I believe in the UK it is only transfers of land that require a written contract. However you might want to think about how you would prove a handshake to a court
Not in the US in many cases. Take the Uniform Commercial Code, for example, which requires a written contract for the sale of goods over $500, or agreements creating a security interest.
See https://www.nolo.com/legal-encyclopedia/when-is-written-cont... for a decent overview.