Lex MentisAttorney Check

New York attorney · Reg. #2821957

Mark Christopher Nielsen

Registered (registry: Currently registered)

Current employer

Groom Law Group, Chartered · Washington, DC · since at least September 2026

Admission

Admitted 1997, Third Department · SUNY AT BUFFALO

Employment history

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