Which Do I Do First: Ask for Validation or Answer Complaint?

If I was being sued and asked myself that very same question, I would answer the Summons.

If I did not ask for proper validation before I was served, it makes no sense to ask for it now.

Right now I would be dealing with a lawsuit and would answer that summons within the time frame given on the Summons or risk a default judgment. Validation would be the furthest from my mind right now.