Disabled persons: When the parents of a disabled person have passed away, courts will rely on the family's letter of intent to try to figure out what the wishes of the family are for the disabled relative. A letter of intent is sometimes the glue that holds a potential deal together. While deals are done in the business world and other areas of life every day, usually the beginning of any deal was originally laid out in a letter of intent.
Buyer accepts offer and signs it, where offer acceptance is binding depends of the legal jurisdiction. For example English and common law differs slightly from American uniform commercial law on matters of offer acceptance and when performance becomes binding on an offer.