when can i send interrogatories?

Are you suing someone? What types of questions are you wanting to ask?

Interrogatories, as I'm familiar with the term, are issued by a judgment creditor to determine available assets/income that a debtor might have to satisfy a judgment. They are usually filed after a judgment is entered.

I am a defendant and since they haven't yet to validate the debt, I want to ask them questions. I'm not sure I understand the whole process. I have a hearing scheduled where they are going to try and determine available assets but I also am not satisfied with their "validation."

I would send interrogatories, Requests for Production of Documents and Discovery questions as soon as I filed my answer to the complaint with the court and the plaintiff. Research your states Rules of Civil Procedure to ensure they are correctly formatted. What did they provide in the way of validation? Have they served you with any of the above? You can use their interrogs, etc as a template for your own.

For the complaint part, they used an affidavit from an employee of the CA that says they have knowledge the debt is true and accurate. No statements or anything from the OC.
That is what I was thinking, just using their interrogatories as a template. I went to the courthouse and looked at the file and so far, they only sent interroggatories to someone they think is my employer.