(a) Creating a legal relationship. A contract, the most general type of transactional document, creates reciprocal duties between the parties. It may be anything from a lease to a license to a land sale to a settlement. A lawyer drafting a contract or advising a client about a contract must remember the simple truth that whenever someone asks someone else to sign a document, the signer may someday regret having signed. The contractual terms matter most if that day ever comes. While a contract may begin a relationship that all the parties are pleased with or close a deal that they are optimistic about, the drafter must look toward the chance that the satisfaction and optimism may fade. The document must serve well in that future day as well as in the present.