Controllers are allowed to compile a set of financial statements for management's internal purposes, and is typically part of the job requirement to do so.
To be clear, the statements Tom asked about are not being issued directly by him to any third parties. Company management would be handing them over to the company's outside CPA that has been hired to audit them. The outside CPA firm is the party that is "issuing" the audit report as part of the complete set of financial statements by doing a lot of work that gives reasonable assurance that the monetary amount and other disclosures fairly represents the position and results of operations of the company and are not materially misleading to the reader.
Except for very large clients, I really wouldn't expect anyone other than the CPA firm, or in-house CPA or CMA, to write the notes to the financial statements, especially with the complexity of today's reporting requirements. Sounds too much like someone is passing the buck here, and yet the CPA firm will still be required to go through its disclosure checklist to verify that everything is adequately disclosed, and if something is missing, they'll still have to address it in communication with management to have it corrected.
Tom, I agree with PapaJoe that you can start with updating from last year. Basically, that is what the CPA firms do to update from the prior year's statement, and then add or modify as needed. The problem with the CPA asking you to write them is that the auditing firm expects you to know what disclosures are required, and exactly what information on those subjects must be included, either in the financials themselves or in the notes.