Legal Question in Business Law in Illinois

It depends. If the quote is simply an offer and the potential client has not accepted the offer, the offer can typically be rescinded. If the offer has been accepted, then a contract has been formed and the other party has a right to expect the contract to be performed on the terms provided in the contract. The fact that no money, goods or services have yet been transacted is not necessarily relevant.

There are some exceptions, such as mutual mistake, but the exceptions are fairly limited. The specific facts are very important, since minor nuances can have a significant impact on the end result. You should talk to a lawyer, particularly if the dollar amount is significant.