First of all, the attorney must get the whole story from the employee who thinks they have been wrongfully terminated. Once the attorney has all of those facts, he or she can help the employee determine whether or not it was simply an unfair decision on the part of the employer or unlawful wrongful termination. There is quite a bit of case law on wrongful termination, so there are all kinds of nuances. Only an experienced attorney can help an employee figure out whether or not they have a wrongful termination claim. Then, that attorney can properly construct a complaint and file a lawsuit. All of this has to be done with a great deal of care and attention to the facts of your particular case.