A legal document, usually in writing, giving details of a formal legally binding agreement, between two or more different people or groups. To be legally binding it must contain certain elements: it must contain an offer made by one party and accepted in its entirety by the other, it must include some form of consideration whether it be money, goods or services, and it must be properly signed by all parties to it, and dated.

A formal promise by one party (the guarantor or surety) to another party (the creditor) to accept responsibility of a third party’s (the principal debtor) debt, if that third party cannot or refuses to pay it.

Is the investigation of a business or person prior to signing a contract. A common example of due diligence in various industries is the process through which a potential buyer evaluates a target company or its assets for an acquisition.

Also referred to as a mortgage loan, is used by purchasers of real property to raise capital for the purchase, or by existing owners to raise funds for any purpose while putting a lien on the property being mortgaged. The loan is secured on the borrower’s property, putting in place a legal mechanism which will enable the lender to take possession and sell the secured property to pay off the loan in the event that the borrower defaults on the loan or otherwise fails to abide by its terms.

A demonstration of the willingness of a party to enter into a bargain, made in such a way that another individual is justified in understanding that his or her assent to the bargain is invited and that such assent will conclude the bargain. The general rule is that it must be reasonable in the circumstances for the recipient to believe that the communication is an offer. The more definite the communication, the more likely it will constitute an offer.