In property law, one distinguishes the ambiguity of patents and the latent ambiguity. The two forms of ambiguity differ in two ways: (1) which led to the existence of ambiguity; and (2) the nature of the evidence base that could be admitted into the solution. The Parol rule of evidence states that once the parties have entered into a contract and the contract is fully and fully an expression of the parties` agreement, no oral or written external agreement can be put in place to add, modify or contradict the terms of the contract. However, if the language in the treaty is ambiguous and unclear, the parol evidence is to bring, is outside the evidence only to resolve the ambiguous language and explain the intention of the parties. But for contracts that do not offer appropriate language, the California Civil Code has a number of laws that provide methods to resolve any ambiguities. Contractors always want to develop a contract to avoid future differences of opinion. Here are some options to avoid ambiguities in a treaty: n. if language has more than one meaning. If ambiguity is obvious, it is called a “patent,” and if there is a hidden ambiguity, it is called “latent.” If there is ambiguity, and the original writer cannot explain it effectively, then ambiguity is decided in the light most favourable to the other party. As a general rule, if there is no evidence of fraud or misrepresentation between the parties, a court will allow the parties to rewrite the contract to resolve the ambiguity. When interpreting the contract, a court may use the following elements to help them understand the intentions of the parties: exceptions exist when a written contract, by fraud, error or accident, does not express the actual intent of the parties and, in such cases, that intention must be taken into account and the defective parts of the letter are not taken into account. Otherwise, an integration clause generally prevents one of the parties from filing pre-contract statements or negotiations in order to amend, contradict or even complete the written agreement. A common type of ambiguous contract is when the definition of a word is not clearly defined in the treaty.