Kathleen Heinsberg is a Senior E-Discovery Litigation Paralegal focusing primarily on litigation matters.

Kathleen supports Cox Castle attorneys in all phases of litigation and trial preparation and has extensive experience managing all facets of high-profile, complex multidistrict litigation matters from inception through trial. With more than 26 years of experience, Kathleen is known as a resourceful team player and prides herself on collaborating with attorneys to provide Cox Castle clients with timely, high-quality, and cost-effective legal services. Kathleen is also an accomplished and proactive legal technology professional with expertise in coordinating and implementing effective E-Discovery plans and litigation support technology tools.

Kathleen’s vast experience includes working for various national law firms in their litigation, environmental, and real estate transactional departments. She’s held various roles including Senior Paralegal, Practice Support Operations Manager, and Case Manager, and brings top-notch legal support, management, and case support to Cox Castle attorneys and clients.

Awards & Affiliations

Professional Affiliations

Los Angeles Association of Litigation Support Managers

Women in eDiscovery – Los Angeles & New York Chapters

Association of Litigation Support Professionals

Los Angeles Paralegal Association

Practice Areas



University of California, Los Angeles, Extension - Attorney Assistant Training Program, Certificate in Litigation, 1998

Nuix Workstation Master Certification 2022

Nuix Discover Master Certification 2022

Nuix Investigate Certification 2022

Concordance Certification, 2007, 2011

CaseMap Suite Certification, 2006, 2012

Notary Public, 2006

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