Contracts vary in form, length, content and print size. Expect standard elements such as the names of the parties, dates, and signatures to show up in every contract. Contracts often contain clauses that address company experiences and regional items. The contract for the purchase of a new home includes a collection of documents. These may include the purchase agreement itself, blueprints, specifications, option and color selection sheets, lighting schedule, site drawing, and limited warranty. Besides drawing this collection together, the purchase agreement includes many common clauses such as those briefly described here.