four corners rule
- This is a legal guideline that states when a document, such as a contract, deed, or will, appears to be complete and self-explanatory, then no external evidence can be used to dispute it
- The lawyer invoked the four corners rule to prevent the introduction of external evidence that would question the validity of the contract.
- Due to the four corners rule, the opposing party was unable to use an oral agreement to alter the clear terms of the written contract.
- Under the four corners rule, the judge ruled that the will was complete and unambiguous, thus, no other document or testimony was taken into consideration.
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