New York attorney · Reg. #4434601

Timothy Sean O'Brien

Registered — renewal due (registry: Due to reregister within 30 days of birthday)

Current employer

O Brien Estate Law, LLC · Oak Park, IL · since at least September 2026

Admission

Admitted 2006, Third Department · JOHN MARSHALL LAW SCHOOL

Employment history

• O Brien Estate Law, LLC · Oak Park, IL · current

Compiled from NYS Office of Court Administration registration records, published NY Appellate Division decisions, and SEC orders against attorneys; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.