Rosenberg & Estis, P.C.
- New York, New York
- Multi State
- Small
- Expert Witness
- ASA · Verify
About
Rosenberg & Estis, P.C. is located in New York, New York. Benjamin Williams holds the ASA (Accredited Senior Appraiser) designation from the American Society of Appraisers. He specializes in property tax reduction, certiorari proceedings, and analysis of New York tax incentive programs including J-51, 421-a, and ICAP.
Services & Specializations
Rosenberg & Estis provides property tax reduction and certiorari services, real estate property tax analysis, and evaluation of property tax incentive programs. Services include tax projections for office, hotel, residential, and retail properties, as well as Real Property Income & Expense (RPIE) and Storefront Registration filing assistance.
Get A Quote
Full Bio
Benjamin Williams is an Accredited Senior Appraiser (ASA) with Rosenberg & Estis, P.C. in New York, New York. He holds a J.D.S. Williams specializes in property tax matters, having argued thousands of cases at New York City Tax Commission hearings and represented dozens of properties on obtaining J-51-R property tax abatements. He provides property tax projections, real estate tax analysis, and guidance on incentive programs including ICAP, 421-a, PHFL Art. XI, and others. He is a co-chair of the New York State Bar Association’s Tax Certiorari Committee.
Notable Engagements
Benjamin Williams has represented dozens of properties including co-ops and condos on obtaining J-51-R abatements, and advised prospective tenants of major properties such as Hudson Yards and World Trade Center on real estate tax escalation provisions.
Credentials & Verification
Credentials held by Benjamin Williams, each independently verifiable:
- VerifyASAIssued by American Society of Appraisers

