This assignment analyzes four scenarios involving contract law principles. Scenario 1 examines whether an offer was validly revoked, focusing on offer, acceptance, and revocation. Scenario 2 explores promissory estoppel, assessing if a promise for free service is legally binding. Scenario 3 analyzes a verbal agreement for a lease, determining if a landlord is liable for remodelling expenses based on reliance. Scenario 4 addresses the unconscionable conduct of a bank and the liability of guarantors. The analysis uses relevant case law, including Dickinson v. Dodds, Waltons Stores, and Commercial Bank of Australia v. Amadio, to determine the rights and liabilities of the parties involved. The conclusion for each scenario provides a concise summary of the legal outcomes.