Legal Question in Credit and Debt Law in California

It appears that you're referring to the Santa Clara County coversheet which accompanies a summons and complaint in collection cases. Within 30 days of their service upon you, you must file with the court an answer to the complaint, and have a third party serve a copy by mail on the plaintiff's attorney.

You can find form answers on the Judicial Council's form website: http://www.courtinfo.ca.gov/forms/ . However, it would be wise to consult with an attorney to determine whether you have affirmative defenses that must be asserted, including statutes of limitations, and to assist you in preparing the answer. If you qualify, you might ask the court to waive the filing fee, as well.