Katja M. Grosch

Katja M. Grosch

Katja M. Grosch is an associate in the Orange County office of RMO LLP. Katja’s litigation practice focuses on trust, estate, and probate litigation, in which she represents clients in a range of capacities including as trustees, beneficiaries, executors, creditors, and heirs, as well as fiduciaries in the administration of estates and trusts. Katja also practices business litigation, representing business owners, members, and shareholders, and has prosecuted and defended dozens of appeals. Katja has litigated matters in state and federal courts throughout California and several other states. In handling cases, Katja uses her comprehensive knowledge of her practices combined with a compassionate approach to understanding and striving to achieve her clients’ goals.

Professional & Community Involvement

  • Member, Los Angeles County Bar Association – Trusts & Estates Section
  • Member, State Bar of California – Trusts & Estates Section, Litigation Section


  • Juris Doctor – Washington University in St. Louis School of Law
  • Bachelor of Arts, Biological Anthropology – University of Illinois, Urbana-Champaign


  • California
  • Missouri
Location: Kansas City
Telephone: 949.226.8509

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