The manager or board of managers, as the case may be, shall keep detailed, accurate records, in chronological order, of the receipts and expenditures arising from the operation of the property. Such records and the vouchers authorizing the payments shall be available for examination by the unit owners at convenient hours of weekdays. A written report summarizing such receipts and expenditures shall be rendered by the board of managers to all unit owners at least once annually.
New York Legal Code