i think the steps you outline are quite alright but i maintain that you need to consult your lawyer first before taking any action, it is just like if you are sick you consult your doctor for treatment.The first thing you should do is to respond to the lawsuit within the period of the summons. Next is, you gather evidence being relevant information and concrete non falsified proofs for your defense. It might be significant data that you have in possession which can turn the case to your favour. Then you seek out an attorney for legal advice. And finally, attend the court hearing