Addendum

An addendum is an additional document that gets added to the purchase and sale agreement. The document will include any additional information or requests that the buyer did not put into the original purchase and sale agreement. The language in the addendum can override the original terms of the agreement. For this reason, any addendums that are attached can be very powerful. Adding an addendum to a contract is often preferred to other methods, such as striking out clauses within the contract.