Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records

Leonard Edward Sienko JR.

Currently registered

Leonard Edward Sienko JR. is an attorney admitted to the New York State Bar in 1978, with a registered practice address in Hancock, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number1373877
Bar statusCurrently registered
Year admitted1978
Judicial departmentDepartment 3
Law schoolBoston College Law School
Practice cityHancock, NY
CountyDelaware
Firm / organizationLeonard E Sienko Jr Attorney At Law
Office address12 E Main St, PO Box 579, Hancock, NY, 13783
Phone(607) 637-5400
Next registration dueAug 2026

Office location

Registered office address on file with the New York State Bar. Verify before visiting, as the address reflects the contact on record and may be a firm rather than a personal office.

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