It only takes a single individual to contact an attorney and initiate a class action lawsuit on behalf of all who were harmed. Often, once the suit has been started, more people join to form a substantial group.
In some cases, the law may require a minimum number of members for class actions. In general, 50 members is almost always considered enough. However, this is by no means a hard and fast rule. The only way to know for certain whether your situation will stand in court as a class action lawsuit is to move forward with the process. The first step is to contact a Morgan & Morgan attorney for a free case assessment.