| 2025 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2024 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2024 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2023 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2023 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2023 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.5 | $0 | $0 | View return |
| 2023 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2023 | La Gorce Country Club Inc | 990 | Governor | 3 | $0 | $0 | View return |
| 2022 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2022 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.5 | $0 | $0 | View return |
| 2022 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2022 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | La Gorce Country Club Inc | 990 | Governor | 3 | $0 | $0 | View return |
| 2022 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2021 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2021 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2021 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2021 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2020 | Southampton Bath & Tennis Club Charitable Fund | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2020 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2020 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2020 | La Gorce Country Club Inc | 990 | Governor | 0.5 | $0 | $0 | View return |
| 2019 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2019 | The Litwin Foundation Inc | 990PF | Treasurer & Director | 0 | $0 | $0 | View return |
| 2019 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2019 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2019 | La Gorce Country Club Inc | 990 | Governor (As Of 9/18/20) | 3 | $0 | $0 | View return |
| 2018 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2018 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2018 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2017 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2017 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2017 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2017 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2016 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2016 | The Real Estate Board of New York Inc | 990 | Member Bd Go | 0.25 | $0 | $0 | View return |
| 2016 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2015 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2015 | The Southampton B & T Club Inc | 990 | Director | 3 | $0 | $0 | View return |
| 2014 | The Litwin Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2014 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2013 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2013 | Glen Oaks Club Inc | 990 | Parking Chairman | 3 | - | - | View return |
| 2013 | The Litwin Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2012 | The Litwin Foundation Inc | 990PF | Director | 0 | $0 | $0 | View return |
| 2012 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2011 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |
| 2010 | New York Crohns Foundation | 990PF | Secretary/Treasurer/Direct | 0 | $0 | $0 | View return |