From what you have written with respect to the summons and complaint for the unlawful detainer that was left on your door, proper service was not made.If so, then you have the option to immediately file a motion to strike and quash service as well as a demurrer to the summons and complaint after the motion to strike and quash is heard. Filing the motion to strike/quash will not per se harm your intent to file the demurrer.I suggest that you consult with a landlord tenant attorney to assist you in your matter. The wrong name on the pleadings would be a basis for the demurrer, i.e. misjoinder of parties.