file motion to compel interrogatories for child support

I have a current child support case in San Diego, California and have submitted a request for Interrogatories, served to the other parent in August. I am looking for legal assistance in filing a motion to compel compliance submitting the interrogatories specifically surrounding business and financial documentation, including a request for sanctions for noncompliance. I will file in court and serve his attorney.

Ideal skills and experience:
-Legal professional experienced in child support cases, specifically dealing with financial interrogatories.
-Familiarity with legal procedures in California.
-Experience or knowledge in processing relevant financial records for child support cases.