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

William Michael Cassarini

Currently registered

William Michael Cassarini is an attorney admitted to the New York State Bar in 1986, with a registered practice address in New York, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number2084200
Bar statusCurrently registered
Year admitted1986
Judicial departmentDepartment 2
Law schoolPace
Practice cityNew York, NY
CountyNew York
Firm / organizationOppenheimer & Co. Inc.
Office address85 Broad St Fl 25, New York, NY, 10004
Phone(212) 667-6814
Next registration dueApr 2028

About Oppenheimer & Co. Inc.

Oppenheimer & Co. Inc. is a New York-based brokerage and investment bank and a subsidiary of Oppenheimer Holdings Inc. The firm traces its origins to 1881, when Fahnestock & Co. was established. It provides financial services to individuals, families, corporations, foundations, and institutions, with offerings that include wealth management, capital markets, asset management, retirement services, and insurance products. Its investment banking group advises emerging-growth and mid-sized businesses on capital raising, mergers and acquisitions, and restructuring.

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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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Bar status can change at any time. For the authoritative, real-time status of William Michael Cassarini, confirm directly through the official New York Attorney Search using the registration number above. This record is republished from public New York State data and is provided for reference only — it is not legal advice and not an endorsement.

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