A more thorough explanation:

Definition: Do ut facias is a type of contract in Roman law where one person gives something to another person in exchange for them doing certain work. A contract is an agreement between two or more parties that creates enforceable obligations. It can refer to the series of actions taken by the parties, the written document that records the agreement, or the legal relations resulting from the agreement. Example: John agrees to pay Jane $100 to clean his house. This is a do ut facias contract because John is giving Jane money in exchange for her doing the work of cleaning his house. If Jane does not clean the house, John can take legal action to enforce the contract and get his money back.