If you are being sued with respect to an alleged hit and run accident involving yourself, you are not obligated to sign papers under the laws of most states when you are served with the summons and complaint.However, since you know about this lawsuit, I suggest that you "tender" your defense as to it to your insurance carrier where your attorneys fees could most likely be paid by your auto insurance carrier assuming you had one in place at the time of the accident.As to the incorrect spelling of your last name, as long as it is close to what it actually is, then the summons and complaint is validly filed.