Undue influence is an equitable doctrine where there is unfair pressure on a party forming a contract, but not reaching the level of duress. There are two types - actual undue influence where a special relationship exists between parties, and presumed undue influence where a relationship of trust and confidence exists but no special relationship. Certain relationships, such as solicitor-client or religious leader-disciple, carry a rebuttable presumption of undue influence. Establishing undue influence renders a contract voidable, though rescission may not always provide a useful remedy.

1. A2 Law of Contract Andrew Howells Andy Howells www.loretolaw.blogspot.com; www.law-exchange.co.uk