The civil code of quebec legally defines a contract to be an agreement of wills by which one or several persons obligate themselves to one or several other persons to perform a prestation in essence a contract is an agreement by two or more persons or entities to do something in exchange for something else. It is an instrument for the economic exchange of goods and services in canada contract law is administered both in common law and in quebec civil law a contract is a legally binding agreement between two or more persons for a particular purpose it is an instrument for the economic exchange of goods and services. Contract law in quebec 2nd edition sebastien grammond anne francoise debruche and yan campagnolo august 2016 wilson lafleur isbn 978 2 89689 310 2 . In quebec a contract binds the parties to what they have expressed in it but also to that which can be implied in light of the nature of the contract and given usage equity or law for the purposes hereof we will limit ourselves to a few important considerations among various others