You can get a form but you might have to respond to the allegations and affirmative defenses depending on if it is verified or not. You also might consider a demur based upon the allegations. You should at least consult an attorney.
This is not a comprehensive answer and it is impossible to provide a meaningful response without a consultation. Call us for more information. 619.797.5456 www.mataelelaw.com
The only possible form possibly available to you is a General Denial, which is Form PLD-050 from the California Judicial Council.
This is not a "check the box" form, however, in that the part regarding your affirmative defenses you must draft yourself.
You cannot countersue for your time invested in the case.
I strongly urge you to hire a lawyer to represent you. Your questions suggest a familiarity with the judicial system that is inadequate to defend yourself. Yes, lawyers are expensive. Adverse judgments are often more expensive, however, and it is much cheaper to properly defend against the action the first time than to try to correct mistakes later on.