> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://biasinvestors.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Legal Opinion

The written opinion of bond counsel that attests to the fact that the municipal issue was legally authorized and issued, and to the tax status of the interest. See also: Qualified Legal Opinion; Ex-Legal.