If you ignore interrogatories, the other side can move for summary judgment against you and win. Its always best to fill them out and send them back, but its also best to see a lawyer about it since they may be duplicative and you might be able to quash them if your attorney moves quickly enough. In short, answer the questions.
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If you do not respond, it could very well come back and bite you. What you described, I think, are supplemental questions following up on your responses to the first set of questions. Respond to them.Ask a similar question
If the interrogatories are not seeking additional information relevant to the case, your attorney will know how to move to quash them. On the other hand, if you're litigating a contested divorce on your own, you're likely to have trouble.
The one thing you should NOT do, as the previous commenters have suggested, is ignore the interrogatories. That will only lead you into trouble.Ask a similar question