John Charles Koster
DelinquentJohn Charles Koster is an attorney admitted to the New York State Bar in 1969, with a registered practice address in Sag Harbor, New York. According to the New York Office of Court Administration, the current registration status on record is Delinquent.
| Registration number | 1019835 |
|---|---|
| Bar status | Delinquent |
| Year admitted | 1969 |
| Judicial department | Department 1 |
| Law school | University of Michigan |
| Practice city | Sag Harbor, NY |
| County | Suffolk |
| Office address | 95 Laurel Valley Dr, Sag Harbor, NY, 11963 |
| Phone | (212) 628-9664 |
| Next registration due | Jul 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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