In a number of jurisdictions a putative plaintiff must send the intended defendants a demand letter stating the nature of an intended claim and the plaintiff’s intent to file suit if no settlement is reached by a given date. Failure to do so may expose the plaintiff to sanctions including a requirement to pay some or all of the defendant’s legal costs. This is, for example, the case in the United Kingdom. The main risk of serving such a notice is that the potential defendant will file a declaratory judgment case.