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

Sienna Mary Florence Fontaine

Currently registered

Sienna Mary Florence Fontaine is an attorney admitted to the New York State Bar in 2008, with a registered practice address in Brooklyn, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number4625679
Bar statusCurrently registered
Year admitted2008
Judicial departmentDepartment 2
Law schoolNew York University School of Law
Practice cityBrooklyn, NY
CountyKings
Firm / organizationMake The Road New York
Office address301 Grove St, Brooklyn, NY, 11237
Phone(917) 633-7215
Next registration dueMay 2026

About Make the Road New York

Make the Road New York (MRNY) is a nonprofit, grassroots community organization that works to build power among immigrant and working-class communities in pursuit of dignity and justice. Its work combines community organizing, education, health access and legal services, and it reports more than 30,000 members across New York City, Long Island and Westchester. Its legal services program offers free civil legal help to low-income people and, alongside organizers and members, also pursues impact litigation and policy work.

Practice areas of Make the Road New York:

Landlord-Tenant Employment & Labor Workers' Compensation Civil Rights Immigration

These are the practice areas the organization describes on its website. They are not a statement about Sienna Mary Florence Fontaine’s own practice or any specialty certification.

View the Make the Road New York profile and its 24 registered attorneys →

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 Sienna Mary Florence Fontaine, 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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