Final answer:
The Official Statement is the document that provides the most detailed information regarding a new municipal issue and financial information about an issuer.
Step-by-step explanation:
The document that provides the most detailed information regarding a new municipal issue and financial information about an issuer is the Official Statement.
The Official Statement is a legal document that is prepared for a municipal bond offering. It contains information about the issuer, the purpose of the bond, the terms and conditions, and other important details that potential investors need to know.
For example, it will include information about the issuer's financial health, debt obligations, and future plans. Investors use this document to assess the risk and make informed decisions about investing in the municipal bond.