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Oct. 8, 2026

Umberg/Zipser co-founder Dean Zipser to retire, join JAMS

Zipser will handle mediations, arbitrations and referee and special master matters at JAMS after remaining with Umberg/Zipser through year-end.

Dean J. Zipser, co-founder of litigation and intellectual property firm Umberg/Zipser LLP, will retire at the end of 2026 and join JAMS as a neutral, the firm announced Tuesday.

Zipser will handle mediations, arbitrations and referee and special master matters at JAMS after remaining with Umberg/Zipser through year-end. He co-founded the firm in 2014 and has spent decades litigating complex disputes.

"Building Umberg/Zipser and working alongside the extraordinary law...

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