We provide legal representation for collections of accounts receivable, collections of judgments and settlements, and real estate collections and liens. This program will help you write a letter that formally requests the money you are owed.This is called a Demand Letter. Schedule a free consultation with us today to find out how we can help you fight back against debt collectors. You must fill out an Answer, serve the plaintiff, and file your Answer form with the court. Generally, this is due within 30 days after you were served. • make a copy of the filledout, signed letter before you mail it. • send the letter in such a way that you can prove it was received such as by. Write an effective lawyer debt collection letter with this in-depth guide, featuring essential tips, key components, and a practical sample. You have 30 days to respond to a debt lawsuit in California.