In many countries, real estate contracts must be in writing to be enforceable. In the United States the Statute of Frauds require real estate contracts to be in writing to be enforceable. In South Africa, the Alienation of Land Act specifies that any agreement of sale of immovable property must be in writing.
Additionally, a real estate contract must:

  • Identify the parties: The full name of the parties must be on the contract. In a sales contract, the parties are the seller(s) and buyer(s) of the real estate, who are often called the principals to distinguish them from real estate agents, who are effectively their intermediaries and representatives in negotiation of the price. If there are any real estate agents brokering the sale, they are typically listed also as the real estate brokers/agents who would earn the commission from the sale.
  • Identify the real estate (property): At least the address, but preferably the legal description must be on the contract.
  • Identify the purchase price: The amount of the sales price or a reasonably ascertainable figure (an appraisal to be completed at a future date) must be on the contract.
  • Include signatures: A real estate contract must be entered into voluntarily (not by force), and must be signed by the parties, to be enforceable.
  • Have a legal purpose: The contract is void if it calls for illegal action.
  • Involve Competent parties: Mentally impaired, drugged persons, etc. cannot enter into a contract. Contracts in which at least one of the parties is a minor are voidable by the minor.
  • Reflect a meeting of the minds: Each side must be clear and agree as to the essential details, rights, and obligations of the contract.
  • Include Consideration: Consideration is something of value bargained for in exchange of the real estate. Money is the most common form of consideration, but other consideration of value, such as other property in exchange, or a promise to perform (i.e. a promise to pay) is also satisfactory.