Night rage is often used in the real estate market. If a potential buyer and seller negotiates an agreement often referred to as a purchase and sale agreement, Nachtrage contains information about issues and items that are not in the original project. Grudges define information relevant to the use of contingencies, for example. B with respect to the buyer`s ability to obtain adequate financing or a real estate home (REO) sold as it is. As with other parts of the contract, night rage often requires signatures for all parties to the negotiation. This process confirms that the parties have verified and accepted the new or additional information. The amendment becomes a mandatory element of the contract. The signature of a witness may be necessary to ensure validity. In the absence of signatures, it could only appear in the context of an approximate draft of the original treaty that contains provisions that were ultimately not included in the final agreement. . . .