New York attorney · Reg. #5446943

Matthew John Fenner Sienkiewicz

Registered (registry: Currently registered)

Current employer

City of New York Department of Buildings · New York, NY · since at least September 2026

Admission

Admitted 2016, First Department · Columbia Law School

Employment history

• City of New York Department of Buildings · New York, NY · 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.