James M. Kosareff is an attorney practicing estate administration, probate, and tax law in the firm’s office.

About James

James Kosareff is a Partner of the Copenbarger law firm and the leader of the estate administration and probate department at the firm. He handles the vast majority of probate and trust administration matters, routinely advising clients and making court appearances on their behalf. He is also heavily involved in the tax and estate planning departments. James represents clients in all of our offices, including Santa Ana, Temecula, and San Jose.

James believes that every client deserves honorable and excellent representation, which he provides. He understands the hardships that court can cause a family, especially after they have lost a loved one. He walks his clients through each step of the process and is there to hold their hand as needed.

James graduated from Western State University and was admitted to the California Bar in 1994. He is a Certified Specialist in Probate, Estate Planning, and Trust Law in California. He received his LLM in Taxation from Chapman University School of Law in 2006.

Personal

James spends his free time with his wife and their two children, volunteering with Kiwanis, and rooting for the LA Dodgers.

Awards

Top Attorneys of North America 2021-2022
Legions of Honor 2021

Practice Areas / Responsibilities

Mr. Kosareff is the leader in the trust administration and probate section of the firm. He currently handles the vast majority of probate and trust administration matters, routinely advising clients and making court appearances on their behalf. He is also heavily involved in the tax and general estate planning areas.

Professional Qualifications

Member, State Bar of California, Admitted 1994
Admitted to argue before the Ninth Circuit Federal Courts
Certified Specialist in Probate, Estate Planning, and Trust Law by the California Board of Legal Specialization, State Bar of California
Member, State Bar of California Trust, Probate, and Estate Planning Section and Tax Law Section
Member, Orange County Bar Association Trusts and Estates Section and Tax Law Section
Member, Kiwanis Club of Huntington Beach

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